Summary of engineering geology practice

Model essay on summary of engineering geology practice

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Practice summary of engineering geology model essay 1 I am a college graduate who has just entered the society. I graduated from Guilin Institute of Technology in 20XX, majoring in exploration technology and engineering. After graduation, I worked in the Geophysical and Geochemical Exploration Project Team of Northwest Nonferrous Geological Exploration Bureau 71KLOC-0/Corps Geological Exploration Institute. 20XX has been working for one year in July. In this short year, I learned a lot of knowledge that I couldn't learn in school, broadened my horizons and improved my professional and technical level and working ability.

I. Participation in the project

In this year, I participated in the magnetic survey of Xujiagou South 1 km2 iron mine, 5 wells in Wan Chuan Copper Mine, Jinzishan Jindongzi and Hongyan Mountain IP logging, and 0.5 km2 charging survey in Taojiagou Gold Mine. I also participated in the compilation of the results of IP geophysical exploration in Xuehua Taiping lead-zinc mine and the south of Xujiagou.

Second, the improvement of professional knowledge.

My major is geophysical exploration, which is geophysical exploration. I only learned some theoretical knowledge at school, so there are few opportunities for practice. The construction site is a good place for me to study and practice. When I arrived at the construction site, I found that the theoretical knowledge I learned at school was too superficial and it was very difficult to practice. At the construction site, I humbly asked the master. If I don't know anything, I'll ask. After a year's work practice, I have increased my professional knowledge and improved my practical ability, and I have a good combination of theory and practice. I made full use of my spare time to systematically study the theoretical knowledge of magnetic method, induced polarization, charging and soil geochemical measurement. I learn from the master with an open mind, pay attention to accumulate experience and learn lessons in practice, and soon get used to the work and work hard to finish it.

Iii. Work experience

I've heard that geophysical and geochemical exploration is very tired and the workers are very hard. After coming to the Geological Exploration Institute, I felt the hard work of the workers. The masters of geophysics and geophysics used four special descriptions: special efforts, special dedication and special patience. Senior students work outside all the year round and can't take care of their parents, wives and children. They work hard and never complain. This spirit of selfless dedication is something I must learn. In the communication with my predecessors, I learned how to face difficulties and how to be a man, and established a correct outlook on life and values. Through one year's work and study, I feel that as a technician, I must be careful, do a good job in every step, be familiar with the process of field data collection and processing, be familiar with drawings, be more familiar with specifications, constantly learn engineering and professional-related knowledge, and arm myself with knowledge.

Four. Advice to the company

With the development of society, people have higher and higher requirements for quality, and quality is a solid foundation for the survival and development of an enterprise. The improvement of quality depends on the improvement of the overall quality and technical management level of workers. In order to face more fierce competition, it is the focus of the company to cultivate high-quality, high-level professional and technical personnel and management personnel.

In my past work, with the care of leaders and the support and help of comrades, through continuous efforts, I have adapted to this kind of work and have certain technical work ability, but there are still shortcomings. In my future work, I will strengthen my study, overcome my shortcomings and strive to continuously improve my professional and technical level. At the same time, I clearly realize that in order to adapt to the new situation of the company's development, we must constantly strengthen theoretical study, especially the study of new technologies and theories, work hard, exercise and grow in practical work, accumulate work experience, improve our business ability and work level, and make new and greater contributions to the company's development.

On July 9th, 20xx and July 6th, 20xx, 14, we conducted an engineering geological practice in Xingwen Shihai. Engineering geology practice is a very important practical link in the whole engineering geology teaching, which enables students to gain perceptual knowledge through field investigation and field practice of basic geological phenomena on the basis of learning the theoretical knowledge of the course, consolidate and deepen the course theory, and combine theory with practice for the design and construction after graduation. The content of this internship is:

Basic methods of field construction in civil engineering.

Identify and observe common manifestations, mineral characteristics and engineering characteristics.

Understand and master the stratigraphic age and lithologic characteristics.

Master the types of faults and the characteristics of field identification.

Master the field identification of folds.

Skillfully use the compass to determine the three elements of rock occurrence.

Observe the common addressing phenomenon and the law of groundwater recharge, movement and discharge.

It is very important to understand the basic concepts, knowledge and skills of address. Through short field practice, we can consolidate the content of engineering geology and deepen our understanding of the relevant content of the course. In addition, through practice, we can cultivate our love for nature, cultivate our sentiment and improve our interest in address science. At the same time, we fully realize the importance of geological practice to geological science.

There are many types of landforms along the highway, mainly karst landforms and gravity landforms. Xingwen Shihai is located 30 kilometers south of Zhongcheng Town, Xingwen County, Sichuan Province. It is named after strange stones and caves. The total structural area of the address is 126.4 square kilometers, which is the east-west structural system of the southern Sichuan fold belt, located in the north of Zhenxiong dome structure in the southwest of Huayingshan fault zone and at the end of the eastern section of Changgong anticline. Faults are very developed in this area, and the structural line direction is northeast, followed by nearly north-south direction and east-west direction.

Internship content:

The intermittent uplift of Xingwen Shihai structure is strong, and the development of karst and the shaping of landform are obviously controlled by neotectonic activities. The exposed stratum in the middle of the county is old, but the north and south sides are relatively new. From the old to the new, there are 8 series and 27 groups in the distribution strata. This area has complex geological structure, ancient strata, diverse rock types and rich minerals. Under the same sculpture of internal force and external force, various landforms have been formed. In particular, Xingwen carbonate rocks are widely distributed, and Triassic, Permian and Ordovician strata are exposed in large quantities, with different structures and compositions. During the internship, the main observations are as follows:

Mineral and fossil specimens

There are abundant fossil specimens in this area, including trilobites and Guizhou dragons. Fossils of animals and plants such as corals and sea lilies. Sandstone, seasonal sandstone, pyrochlore, limonite and other minerals. This area is characterized by carbonate deposits that become shallower upward and then gradually rise, so it suffers erosion and leads to stratum loss. From the late Middle Permian to Permian, it gradually transited to Triassic carbonate deposition. The uplift at the end of Middle Triassic made this area enter the stage of continental basin development, at which time animal and plant fossils were the most abundant. The Jurassic was dominated by rivers and lakes, and then the orogeny made the area fold and deform, and the Himalayan movement strongly lifted the area. In this process, the movement of the earth's crust is that a large number of animals and plants in this area are buried underground. Finally, a variety of minerals are formed. These mineral and fossil specimens can be seen in Xingwen Address Museum.

karst

Karst refers to the landform that soluble rocks, especially carbonate rocks (such as limestone and gypsum) are dissolved and sometimes deposited by running water containing carbon dioxide. They are usually strange in shape, including caves, stone buds, stone gullies, stone forests, caves, underground rivers and cliffs. Also known as karst landform, according to its development and evolution, karst can be divided into the following six types.

1. Surface water dissolves along the joint surface or fracture surface in limestone, forming karst ditch (or karst trough), and limestone originally distributed in layers is divided into stone pillars or stalagmites by karst ditch.

2. Surface water permeates and dissolves downward along limestone cracks, and when the depth exceeds 100 meters, a sinkhole is formed. ..

3. The groundwater falling from the sinkhole flows laterally to the aquifer, forming a karst cave.

4. With the formation of underground caves, the surface collapses, and those with large collapse depth and small area are called collapse funnels, while those with small depth and large area are called collapse ponds.

5. The dissolution and collapse of groundwater combine for a long time, forming inclined valleys and natural bridges.

6. With the rise of the ground, the original caves and underground rivers were taken out of the ground and turned into dry valleys and stone forests, and the dissolution of groundwater continued under the old caves and underground rivers.

Xingwen Shihai is rich in karst development, mainly distributed in the fifth floor of Tian Quan Cave in the area, with 12 hall and a volume of 2.7 million cubic meters. The main cave is more than 65,438+0,300 meters long and about 50-65,438+000 meters high. Stalactites, stalagmites, stone pillars and lakes are distributed, which is a typical karst. The large funnel in the scenic area is more than 600 meters in diameter from east to west, 450 meters in diameter from north to south and 230 meters in the deepest part. The bottom of the funnel is directly connected with Tian Quan Cave. The soluble and permeable rocks in this area are limestone and gypsum, and the water in the cave dissolves and flows, which is an important reason for the continuous development of funnels and caves.

breakdown

After the rock mass is broken by force, the rocks on both sides have obvious displacement along the fracture surface, which is called fault. In the fault zone with dense fault distribution, the rock strata are generally seriously damaged, the occurrence is disordered, the cracks in the rock mass increase, the rock strata are broken and weathered seriously, and there is more groundwater, thus reducing the strength and stability of the rock; At the same time, adverse geological phenomena such as valley slope collapse, landslide and debris flow have developed.

Xingwen Shihai originally belonged to the southwest section of Huayingshan fault zone: the compressional and torsional thrust fault was adopted. Located in the east wing of the back nose of Yin and Yang. It starts from the north of Xingwen in the north and flows south through the two estuaries. Yuejiahe to Shibantian disappeared in the Lower Ordovician. It is 10 km long and the fault is between Cambrian and Beni strata. The fault strike is 335, inclined to the northeast, and the dip angle is 40-60. At the two estuaries, the Middle Cambrian dolomite limestone was napped on the lower Ordovician sandstone shale. There are parallel traction bends and vertical and inverted strata along the fault. In Liangshuijing and the back of the dome, the secondary curvature axis (such as the anticline on the back of the dome) makes the 3050 direction and Xingwen fault form a herringbone structure, showing the characteristic that its east plate twists to the south.

Basic types of faults:

According to the relative displacement of the two plates of the fault, it can be divided into the following three types. Normal fault: refers to the fault whose upper wall is relatively lower along the fault plane and whose lower wall is relatively higher; Normal fault is generally due to the horizontal tensile stress and gravity of rock mass, which makes the upper wall stagger downward along the fault plane. Generally, the scale is small, the fault line is straight, and the dip angle of fault plane is steep, often greater than 45. Reverse fault: a fault in which the upper wall rises relatively along the fault plane and the lower wall falls relatively. The reverse fault is generally due to the strong horizontal compressive force on the rock mass, which makes the upper wall stagger upward along the section. The direction of fault line is often close to the direction of rock strike or fold axis and perpendicular to the direction of compressive stress; According to dip angle, it can be divided into thrust fault, overthrust fault and rolling fault. Horizontal inference layer: Because the rock mass is subjected to horizontal torsional stress, the dip angles of the two faults that are relatively horizontally displaced along the fault plane are large, the fault plane is nearly vertical, and the fault line is straight. In fact, the fault structure is very complicated due to the complexity of mechanical properties and boundary conditions of rock mass.

Landslide:

Landslide refers to a natural phenomenon that the soil or rock mass on the slope slides down along the slope wholly or dispersedly under the influence of gravity, river scouring, groundwater activity, earthquake, artificial slope cutting and other factors. Landslide is also called ground slide, and people in mountainous areas in many parts of our country call it "walking the mountain" vividly. The volume of different landslides varies greatly, ranging from tens to tens of cubic meters, from millions to tens of millions of cubic meters, and even hundreds of millions of cubic meters. But this is a typical landslide.

It should be pointed out that the occurrence of landslides is often typical only when they are freshmen or freshmen. Due to human activities or natural reasons, the original appearance of the old landslide is often destroyed and difficult to observe. Only through careful investigation can we find out the remaining characteristics and signs and correctly identify them.

The internship place is in the south of Sichuan Basin, where there was a big flood disaster. Landslides can be seen on the road to this area. These landslides vary in scale, but most of them occur in areas with steep terrain, sparse vegetation and mostly grassland. Most of the landslides observed this time are natural causes.

Internship summary:

The short three-day field practice ended quickly, but we really learned a lot from it, and we can use what we have learned flexibly in practice. Increase our new understanding of engineering geology. Actually observed various geological ages. This internship has deepened our understanding of geological geomorphology, further realized the significance of studying geological geomorphology, consolidated the learning results and realized the principle of "applying what we have learned". Knowledge sublimates from perceptual knowledge to rational knowledge, from abstract to concrete. Learned a lot of things that are not in books, and understood the importance of engineering geology to actual engineering construction. Here, I am deeply grateful to the teacher for his careful guidance.

In practice, I learned some methods, essentials and details of investigating geology and geomorphology. For example, if you go abroad for internship, you should have a certain understanding of the respondents, reasonably arrange the survey distance and content, pay attention to the use of research methods and tools, and pay attention to some details of the survey, fully realize the necessity and arduousness of geological and geomorphological survey, and stimulate your interest in the survey of typical geological and geomorphological characteristics in your hometown and around the country. At the same time, understand the importance of cooperation with team members. All these will play a positive role in our future study and even work.

Summary of Engineering Geological Model Practice Part III Practice Time: XX years 65438+1October 20th ~ 65438+1October 24th.

Internship location: Lianhua Mountain, Panyu, Guangzhou, Guangdong University of Technology University Town Campus.

Internship content:

1, check the image data-bad geological phenomenon

2, geological map reading, engineering survey lectures, reading and collecting data.

3. Field practice: Visit the rocks, structures and landforms of Lianhuashan Mine.

4. Write an internship report

1, (65438+1Monday, October 20th)

It's already autumn, and the weather is still quite hot. As the first day of internship, the first thing to do is to mobilize before internship. The teacher explained the content of the internship briefly but clearly. In the afternoon, under the teacher's organization, we collectively watched some video materials and learned a lot about bad geological phenomena, such as earthquakes, landslides and mudslides. And watched several representative landforms, such as karst landforms, as a supplement to the textbook knowledge, so that we can understand the causes, processes and consequences of various geological phenomena without leaving home, and also learn some measures and methods to prevent these geological phenomena, which enhanced our understanding of geological phenomena. We also observed the occurrence, texture and structure of common rock-forming minerals and rocks to understand their engineering geological characteristics. Although X is not very clear, most of them were taken in the 1970s and 1980s, but after seeing it, our professional knowledge of engineering geology has been improved.

2. (Tuesday, June 265438+10/October 265438 +0)

It is sunny today. After reading the X-ray data, we got a better understanding of geological phenomena and began to learn to read engineering geological maps. In order to make us understand the characteristics of strata, fold structures and faults with different dip angles (horizontal, inclined and vertical) on the geological map, the teacher explained in detail the characteristics of horizontal strata, inclined strata, vertical strata, fold structures and faults on the geological map. But there are too many people around the teacher, and the teacher doesn't talk much and can't hear clearly. Combined with the content of practice instruction and part of listening, I basically learned to read out various geological phenomena from geological maps and analyze the classification law of geological phenomena. He also mastered the analysis methods of geological maps such as folds, faults, unconformity structures and magmatic intrusion areas, drew schematic geological profiles from geological maps with structural maps, and analyzed the history of regional geological development according to geological maps.

In order not to be at a loss when practicing in the field, I carefully read the practice guidance and the courseware given by the teacher, and got a preliminary understanding of the importance of geological survey in engineering construction and various methods and steps of engineering geological survey, and got a comprehensive understanding of the contents of the engineering geological survey report.

3. 3.( 10/Wednesday, October 22nd, 65438)

In the site selection stage, after collecting the data of regional geology, topography, earthquake, building materials, etc., in order to understand the stratum lithology, geological structure, engineering properties of rock and soil, groundwater function and adverse geological phenomena of the site, field exploration is needed, so this field exploration of Lianhua Mountain is arranged.

I have heard about the scenic spot of Lianhua Mountain for a long time, and today I finally have a chance to see its "true face". Located on the Lion River at the mouth of the Pearl River in Panyu District, Guangzhou Panyu Lotus Mountain Tourist Scenic Area is about 30 kilometers away from downtown Guangzhou, which is a scenic tourist area integrating ancient roughness and modern beauty. In XX, Lianhua Mountain was rated as 4X scenic spot by National Tourism Administration. Lotus Hill, with beautiful scenery and outstanding people. * * It is divided into four scenic spots: Lotus Pagoda Scenic Spot, Lotus City Scenic Spot, Guanyin Scenic Spot and Stone Scenic Spot. Headed by the Stone Scenic Area, it is an ancient quarry site in the Western Han Dynasty, with cliffs, rugged rocks and rugged rocks. It is famous for its spectacular stone scenery and is the only "artificial Danxia" miracle in China. The mining time of the ancient quarry in Lianhua Mountain lasted from the early years of the Western Han Dynasty to the Daoguang period of the Qing Dynasty, and the stone from the tomb of Nanyue King in the Western Han Dynasty was collected from Lianhua Mountain. It consists of more than 40 hills with an area of over 300,000 square meters. Lianhuashan ancient quarry is mined by cutting and drilling. The average height of the left quarry surface is 25m, reaching 40m, and the deepest part is13m below the ground. The quarry still retains ancient stone pillars, slates and a large number of stones that have not been transported away; Lotus Pagoda, built in the 40th year of Wanli of Ming Dynasty (A.D. 16 12), is the representative of Lotus Pagoda scenic spot. Lotus Pagoda, also known as Wenchang Pagoda, is known as the "provincial capital huabiao". Standing on the tower, you can have a panoramic view of the beautiful scenery around you; Lotus Town was built in the third year of Kangxi in Qing Dynasty (A.D. 1664). It was originally used by the Qing government to fortify the Pearl River Estuary. The vicissitudes of history are condensed among ancient cities, which makes people look back 100 years ago; In Guanyin Scenic Area, lotus flowers are in full bloom, "out of the mud but not stained, clear but not demon", and the golden statue of Guanyin watching the sea is really extraordinary, which makes people feel like they are in a "pure land" and awe.

The structural position and strata of Lianhua Mountain are briefly introduced as follows:

Lianhuashan structure is located in the deep fault zone since Caledonian movement, and was formed in the orogenic period of Mesozoic Yanshan movement, which is a typical folded mountain system. Lianhuashan Mountain Range enters the Nanjing area of Hua 'an, Fujian Province northeast through Fengshun, Meixian and Dapu. Southwest: Haifeng and Huidong Baoan counties are located in the South China Sea such as Daya Bay and Shenwan, and are backed by Wanshan Islands and Gaolan Islands. Guangdong is about 500km long, 20-40km wide and 60km local. The deep fault is a strongly fractured zone, and * * * is composed of 120 faults and divided into two fault bundles, with 13 main faults in the southeast and 14 main faults in the west. The dynamic thermal metamorphism in this belt is strong (belonging to middle-low pressure metamorphism), and deposits such as lead, zinc, copper, tungsten and tin can be found. It is an important rock-guiding structure. Intermediate-acid magma has erupted in a fractured and intermittent way for many times, and there are more than 100 rock masses in deep faults. It is a metallogenic belt of endogenetic metal deposits.

Strata: The Jurassic system is called Gaojiping Group (continental acidic volcanic rocks), which is a complex continental volcanic rock series, consisting of neutral and intermediate acidic volcanic lava, corresponding pyroclastic rocks and sedimentary rocks, with a huge thickness.

At about 10 in the morning, several classes of our civil engineering major took the school bus to Lianhua Mountain. The road up the mountain is steep, but the scenery along the way is good, and birds and flowers are singing all the way. I can't help but want to get off and enjoy it. Finally, we reached the top of the mountain. After getting off the bus, we followed the teacher, listening to the teacher's explanation and enjoying the beautiful scenic spots. The first thing I saw was Wanghai Guanyin, which was grand in scale and magnificent in momentum. Looking at the sea, the golden Guanyin statue is more than 40 meters high. This statue of Guanyin is like a lion in the sea, shining in the south. It is said to be the best foil bronze statue in the world at present. At this time, the sun is setting, and Guanyin is like a Buddha overhead. On the right side of Wanghai Guanyin is Guanyin Pavilion, an antique single building with three floors, seven rooms wide and a veranda. It is built in the style of big wood in Qing Dynasty, majestic, resplendent and antique. On the top of the third floor, there is a plaque of "Lotus Temple". There is a big incense table in front of the main hall, where pilgrims and believers burn incense and pray.

Walking down the stone steps, you will arrive at Lion Mountain. This is a stone that stands proudly like a lion. Probably named after it. It is said to be one of the symbols of Lianhua Mountain. This stone was eroded by the ancient tides. It seems that the water level here was still very high thousands of years ago. Rock lithology is brownish red sandstone of sedimentary rocks, with obvious bedding structure and easy weathering.

Then there is the ancient road of Fei Ying and the cliff of Fei Ying. Fei Ying Ancient Road is an artificial tunnel. Tunnel hole x is wide and runs through the whole rock stratum. Rock lithology is brownish red sandstone of sedimentary rocks, with obvious bedding structure.

We followed the teacher all the way down. Opposite the Lion Rock is Guanyin Rock, which is a kind of rock with the upper part protruding outward and the lower part sunken inward. It has the words "Guanyin Rock" on it, and its lithology is also brown-red sandstone in sedimentary rocks. Below is a statue of Guanyin, and many good men and women worship marriage. Although I don't believe this, I'm facing the avalokitesvara bodhisattva with great compassion. The next one is the Eight Immortals Rock. Baxianyan is actually a rock group. Plates come in different shapes, but they are all patchwork. The lithology is brownish red sandstone. Rock bedding structure is obvious, and the upper part is covered with plants. There are horizontal joints, vertical joints, inclined joints and wavy joints on rocks, and some joints almost run through the whole rock group. Obviously, the rock has been subjected to great tensile stress and biological weathering.

In the process of watching, we got separated because of too many people. Our class didn't keep up with the team, but followed the wrong teacher in another class. We came to the bathing pool. The teacher said it was a small pool of precipitation and surface water in the low-lying rock. After manual treatment, the pool is oval. On the edge of the pool near the wall, there is a statue carved with white stone, which is a bit like the statue of the fairy sister in Tianlong Babu. Under the guidance of the teacher, we found that the sand around the pool has been exposed to the sun and rain for many years, and wild animals have grown. The weathering degree is strong, and some rock faces have been broken and cut off. The rock fragments at the lower part of the rock have weathered into powder particles and accumulated into soil, and the engineering geological properties are extremely poor. This weathered soil-forming rock is not suitable as the foundation bearing layer of building engineering.

We followed the teacher to the Bath Fairy Pool. Unfortunately, there are no more lotus flowers in the pool, only fish are swimming around, free and happy. The pavilions, corridors and bridges in the Bath Fairy Pond are in harmony with the rocks in the mountains, leaving a poem on the high rock wall, "A few towers are the first, and the lotus is hazy." There are infinite lions and waves in front of us, and they will not leave their names on the water for thousands of years. "There is a white jade Guanyin statue standing on the rock behind the lotus pond.

Go further and you'll get to Yanzi Rock. Yanzi Rock is composed of two tall rocks, which are connected into a whole. The lower part was cut when the ancients quarried, and two rocks stood high above the lake. There is also a sightseeing pavilion built on the top of Yanzi Rock, which looks very dangerous. There is an inclined joint on the rock, but these two fast rocks have survived for thousands of years, which is really amazing. Connected with Yanzi Rock is an ancient quarry with a history of more than 2,000 years. Cliffs and grotesque caves in ancient quarries seem to be carved with incredible craftsmanship. It is famous for its spectacular stone scenery and is a "man-made Danxia" miracle of domestic tourism and scientific research value. The horizontal bedding structure of ancient quarry rock mass is obvious, especially oblique joints, which are wide and long. Because of the low terrain, a depression is formed below the quarry, and surface water has accumulated for many years to form a water lake.

The one-day internship ended like this. I originally planned to take the internship as a trip, but I found it very valuable. This is a process of combining theory with practice. In this process, we should flexibly understand and apply what we have learned, so as to strengthen our understanding of this course, and we have learned a lot in the process of internship that books can't learn. That seems to be the truth. I would also like to thank the teacher for his careful guidance. Through this field practice, I also understand a truth: we should know the object to be inspected in advance and make preparations in advance so as not to be at a loss.

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