Ask for technical papers on railway bridge construction

The first chapter is an overview of jiaozhou-xinyi railway.

Project Name: ZH-7 Bid Section of jiaozhou-xinyi railway Comprehensive Project

Design unit: Third Railway Survey and Design Institute

Construction unit: Construction Project Management Center of Jinan Railway Bureau

Supervisor: Tianjin New Asia-Pacific Engineering Construction Supervision Co., Ltd.

Takeover unit: Qingdao Railway Branch of Jinan Railway Bureau

Construction unit: China Railway Third Engineering Group Co., Ltd.

The first section general situation of the project

First, the line overview

Jiaozhou-xinyi railway is an important part of the land and sea passage from Northeast China to Yangtze River Delta. The passage starts from Harbin in the north, passes through Harbin-Dalian Line, Yanda Ferry Line, Lanyan Line and newly-built jiaozhou-xinyi railway to xinyi city, Jiangsu Province, and then passes through Xinyi-Changxing Line in the south to Changxing, Zhejiang Province. The land-sea passage is a new north-south traffic trunk line along the coast of China, connecting Ji Jiao, Yanshi and Donglonghai railways, and connecting the northeast with North China and Jiaodong.

Jiaozhou-xinyi railway starts from Jiaozhou Station of Ji Jiao Railway in the north, passes through gaomi city, Zhucheng, Wulian County, Juxian County, Yishui County and yinan county in the south, connects with Yanshi Railway in Linyi City, and then passes through Xinyi Station of Tanlong Railway, with a total length of 306.6 kilometers. The management section of our bureau is ZH-7 Bid Section of jiaozhou-xinyi railway, with a railway mileage of DK66+350~DK87+400, with a total length of 265,438+0.86 km, located in Zhucheng City, Shandong Province.

Main work items: subgrade, bridge and culvert (excluding external beam and erection) within 2 1.86 km of the main line; Including the manufacture and installation of bridge deck system and wheel guard rail), track (excluding the laying of main track; Including the main line paving), communication (excluding long-distance communication Jian 'an project), signal, electric power (excluding power through line project), housing construction, station equipment and other post-station projects.

Main quantities: subgrade earthwork 15 179800 cubic meters; There are 87 bridges and culverts, including extra large bridge 1 seat (2597.84 linear meters), 2 large bridges (433. 1 1 linear meters) and 3 medium bridges (1038.38 linear meters) (29.43 linear meters//kloc-). Track laying of station line is 2. 198km, building construction 193 1m2, auxiliary masonry is 72800m3, and track ballast is 6 1000m3.

Second, the main technical standards of the line

Line grade: national level.

Number of main lines: single line

Restricted slope: 6‰

Minimum curve radius: general 1200m, 800m for difficult sections.

Effective length of arrival-departure line: 850m, reserved 1050m.

Traction type: electrochemical conditions reserved for internal combustion

Locomotive type: DF4

Traction quota: 3,500 tons

Block type: semi-automatic block of interval relay, with electricity concentrated in 6502 station.

Third, natural characteristics.

1. Topography: This bid section passes through the gentle hilly area at the junction of Weihe Plain and Taiyishan in the south of Jiaolai alluvial plain, with relatively flat terrain, with an altitude of 20~80m. The line passes through the farming area and orchard area of Zhucheng City, crossing and parallel with National Highway 206 for many times, with rural roads crossing and convenient transportation.

2. Climatic characteristics: The area passed by this bid section belongs to the sub-humid monsoon climate in the south temperate zone, with four distinct seasons, concentrated precipitation, rain and heat in the same season, short spring and autumn, long winter and summer. The temperature rises gradually from north to south, and the rainfall increases gradually from north to south. Summer precipitation season is concentrated in July and August, accounting for about 70% of the whole year, and strong winds are mostly concentrated in March and April. Fog weather mostly occurs in winter, increasing from south to north, and the frost-free period increases from north to south all year round, ranging from 180 ~ 2 10 days. The annual average temperature in this section is 12. 15℃, the extreme maximum temperature is 37.2℃, the extreme minimum temperature is-19.7℃, and the average temperature in Leng Yue is -3. 1℃. Annual maximum precipitation1111.9mm, maximum wind speed 20m/s, wind direction Sn; The maximum freezing depth is 0.39 meters, and natural disasters often occur, especially drought, waterlogging, wind and hail.

3. Water system and geology: The main rivers flowing through this bid section are Weihe River, Malan River, Taikoozhuang River and Shanggou River, and the river water quantity is obviously affected by seasons. Weihe River is perennial water, and the rest tributaries are seasonal rivers, with large flow in rainy season and small runoff in dry season, and some rivers even dry up. The groundwater along the line is mainly Quaternary pore phreatic water, and the main aquifer is the coarse sand pebble layer in alluvial-diluvial layer, which is rich in water and non-erosive.

The basic earthquake intensity of this bid section is ⅶ degree, and the stratum in the passing area is mainly Cenozoic, which is widely developed along Quaternary (Q 1-4), and its distribution is controlled by topography, widely distributed in alluvial-diluvial plain and its tributaries, such as river bed, floodplain and terrace. Lithology: sandy clay, medium coarse sand, medium coarse gravel sand and clay of different colors.

Section 2 Project Construction Management

1. Organizational structure division: this project is divided into two levels of management according to the headquarters and the engineering team. The headquarters is located in the Party School Hotel in Zhucheng City, Shandong Province, and consists of engineering management department, machinery department, materials and equipment department, finance department, security department, office, engineering laboratory and police station.

Second, the division of engineering tasks and team arrangement

1, division of engineering tasks and team arrangement in front of the station

Fourteen teams of the fifth company: DK66+350~DK70+000. The main project quantity: 269,827 cubic meters of earth and stone works for the interval subgrade. The team headquarters is located in Jiankou Town, Zhucheng City. Let 60 people in.

Pipeline section of No.6 Team (No.6 Company): DK70+000~DK72+600 Main works quantity: earth and stone works of section subgrade 23350 1 m3, Taixue Highway Bridge 1 seat, line length192.9m, 3 medium bridges, line length 206.44m,

The main works of pipeline section DK72+600~DK75+886 of Team Five (Construction Department) are subgrade earthwork 193072 cubic meters, and three medium bridges with 66.62 meters, of which Wuji 1No. medium bridge 1-20+2- 16m rigid frame.

The main works in the second team section of the fifth company are DK75+886~DK86+ 100, and the earth and stone works in the section are 63 1287 cubic meters. The team site is located in Zhigou Town, and the labor force is 120.

Bridge and culvert works in DK66+350~DK70+000, DK75+886~DK8 1+800 of No.16 Team of No.5 Company, in which/KLOC-0 bridge (Taikoo River Bridge 240.2 1 length), 9 medium bridges, 6/KLOC-0. Shanggouhe Middle Bridge (3-32m beam)11.02 linear meter, Leijialing No.2 Middle Bridge (2- 16m beam) 45.59 linear meter, Dabutun Middle Bridge (2-20m low-height beam) 50.7/kloc. Wuji No.3 Middle Bridge (1-20m short beam +2- 16m beam) has 64.73 linear meters, Dapanzhuang 1 Middle Bridge (3-20m short beam) has 72.2 linear meters, and Dapanzhuang No.2 Middle Bridge (2-20m short beam) has 50 linear meters. Xiao panzhuang medium bridge (1-20m low beam +2- 12m beam) is 57. 10 linear meter, Yujiazhuang 1 medium bridge (2-20m low beam) is 49.5 linear meter, and there are 29 culverts. The team is located in Jiankou Town and has 100 workers.

Pier No.24 ~ No.79 of the second Weihe Bridge, the foundation project of the new platform, was constructed by Team 7 of Company 5. Main quantities: bored pile 140 cubic meter, open-cut foundation concrete 1660 cubic meter, the team is located in Zhigou town, sections DK66+350~DK70+000, DK75+886~DK87+400 are ballasted, and the whole project is completed.

No.13 Team of No.5 Company has constructed the pier foundation and all piers of No.2 Weihe Bridge 1 # ~ 23 #. The main quantities are: 47 bored piles, 788 cubic meters of open-cut foundation concrete, pier concrete 10855438+0 cubic meters, and 3- 16m beam of Yujiazhuang No.2 middle bridge.

2) Pu Jia's works

Track laying and beam erection are undertaken by the fifth branch of China Railway 14th Bureau, and the bridge deck system is undertaken by the machinery factory of No.5 Company.

2, after the station engineering task division and task arrangement

1) Post-station works: The Construction Department is responsible for the building construction and water supply and drainage works of Zhigou Station. The main works include water supply and drainage pipelines 193 1m2,1.884km.

2) Four power projects: the power, communication and signal projects shall be constructed by the electricity department.

Third, the construction organization design

1, plan

1) Time limit for a project: According to the guiding construction organization design arrangement of jiaozhou-xinyi railway Construction Headquarters of Jinan Railway Bureau before commencement, the completion acceptance time is February 28, 2004, and the acceptance time after completion is adjusted to10.7, 2003, and the bridge-laying date is May 18, 2003. The construction period of our bureau is as follows:

Entry time: 20065438+0 65438+01October 3rd.

Commencement date of formal project: 2006 54 38+0 654 38+0 10/0/.

Project completion time: 65438+20031October 3.

2) Schedule arrangement

Construction preparation and temporary works: September 30, 2006 +0 to 20061October 27+0 10.

Subgrade works: 200111October 3 1 till May 30, 2003.

Bridge and culvert works: 200 1 year1month 15 years to1February 30 years.

These include:

Weihe Second Bridge: Commencement date: 01.1.20 Completion date: 03.05.0 1.

Commencement date of Taixue Highway Bridge: 02.05./kloc-0.9 Completion date: 03.07.20.

Commencement date of Taikoo River Bridge: 0 1. 12.09 Completion date: 03.05.0 1.

Commencement date: 01.1.1.16 Completion date: 03.07.06438+0.

Commencement date of Shanggouhe Middle Bridge: 01.1.25 Completion date: 03.05.0 1.

Commencement date: 02. 12.2 1 completion date: 03.07.04.

Datun Middle Bridge Commencement Date: 01.1.13 Completion Date: 03.05.06438+0.

Commencement date of Xizhuyin Middle Bridge: 0 1. 12. 13 Completion date: 03.07. 15.

Commencement date of Malanhe Middle Bridge: 0 1. 12. 15 Completion date: 03.07. 15.

Start date of Housongyuan 1No. medium bridge: 0 1. 12.08 Completion date 03.07. 15.

Start date of No.2 Middle Bridge in Housongyuan: 02.05438+0.09 Completion date 03.08.0 1.

Commencement date of Donglou Middle Bridge: 02.06.28; Completion date: 03.08.0 1

Commencement date of Wuji No.1 Middle Bridge: 01.1.30 Completion date: 03.04.20.

Wuji No.2 Middle Bridge Commencement Date: 02.0 1.05 Completion Date: 03.07.02

Wuji No.3 Middle Bridge Commencement Date: 02.0102 Completion Date: 03.06.25.

Dapanzhuang 1 Medium Bridge Commencement Date: 0 1. 12.07 Completion Date: 03.06.25.

Dapanzhuang No.2 Middle Bridge Commencement Date: 02.02. 19 Completion Date: 03.05.0438+0

Commencement date of Xiao panzhuang Middle Bridge: 0 1. 12.20 Completion date 03.05.0438+0.

Commencement date of Yujiazhuang 1 Middle Bridge: 02.07.02 Completion date: 03.05.0438+0

Commencement date of Yujiazhuang No.2 Middle Bridge: 02.02.24 Completion date: 03.05.0438+0.

Station: Zhigou Station Commencement Date: 20011.5 Completion Date: September 30, 2003.

Track-laying bed: June 2002 1 day to June 30, 2003.

Track laying: March 2003 16 to May 30, 2003.

Girder erection: May 3, 20031day to June 30, 2003.

Post-station works: March 3, 2002/KLOC-0 to June 30, 2003.

Fourth power project: May 2003 1 to August 30, 2003.

2, the overall deployment points

Guiding ideology: Strictly implement the requirements of the new construction headquarters of Jinan Bureau, carry out the construction and production guiding ideology of the group company of "ensuring the construction period safely, creating reputation with high quality, seeking benefits through management, and striving for the first place in an all-round way", protect the market on the spot, seize the opportunity, and fully participate in the war to successfully complete the construction task of jiaozhou-xinyi railway. And hand in a satisfactory answer sheet to Jinan Bureau, with the overall goal of "creating first-class speed, first-class safety, first-class quality and first-class benefit".

Annual target: 200 1: the unit project will be started in an all-round way, and the earthwork of subgrade will be 6,543.8+0,000 cubic meters, accounting for 70% of the design.

In 2002, the off-line main project was completed, and the subgrade subsidiary completed 80% of the total design amount, completed the ballast and completed the main building project.

2003: After grasping the station, pay attention to maintenance, complete the closing and complete the project.

Quality objectives:

Ensure that all projects meet the current project quality acceptance standards of the Ministry of Railways, and ensure that the management objectives of "excellent in the Ministry" and "excellent in the whole country" are achieved.

1) Put an end to major engineering quality accidents.

2) One-time acceptance rate of unit project 100%.

3) The acceptance rate of unit project is excellent, and the comprehensive unit project is over 95%; Housing construction projects reached more than 50%, water supply and drainage projects reached more than 85%; Communication, signal and power engineering have reached more than 95%.

4) The official opening speed reaches100 km/h/h. ..

Security objectives:

No serious personal injury and above accidents;

The annual injury frequency is less than12 ‰;

No-grade fire accident;

No mechanical and traffic accidents;

Ensure the safety of engineering train transportation;

Ensure the smoothness and safety of roads and rivers in the construction area.

3, the annual construction tasks and investment arrangements.

4, heavy and difficult engineering arrangement

The key projects listed as construction indicators are: Weihe Bridge No.2 and DK66+350~DK67+200 cutting slope spraying project.

(1) Weihe Bridge No.2

The bridge is located at DK84+798. 12 of the newly-built railway Jiaoxin Line, and spans Weihe River and National Highway 206, with a total length of 2,597.84m. It is composed of prestressed concrete beams of 4-24m and 76-32m, and adopts open-cut enlarged foundation and bored pile foundation, with a diameter of d =1.0m: pier with round end and variable cross section. * * * Pier 8 1 block, the longest bridge in jiaozhou-xinyi railway, has been listed as "Luban Award" project, and the commencement date is 200 1 year 1 month 65438+5. The construction of the bridge adopts the construction technology of one-time pouring of pier, tray, top cap and cushion stone, and adopts new material high-performance mineral ultrafine powder in low-grade concrete to ensure the beauty of concrete pier.

(2)DK66+350~DK67+400 underground water road cutting slope protection project, which is the demonstration section of green protection project of JIAOZHOU New Line determined by JIAOZHOU New Project. This project adopts the new spray planting technology to ensure the stability of cutting slope and achieve the effect of slope greening. The start date is 200 1 10 3 1. Main construction technology: clean the cutting slope, arrange anchor holes with a square distance of 1m along the slope, drill holes with a drilling rig, pour 1:2 cement mortar into the holes, insert anchor rods, lay barbed wire, spray vegetation matrix 12cm, and water conservation.

5. Temporary project arrangement: the commencement date is 200111,and the completion date is April 30, 2002. The temporary project applied for construction refers to an organic steel beam assembly yard.

1) Temporary service road

2) Temporary temporary bridge

3) Temporary power supply

4) Temporary communication

5) Water for the project

6, Pujia engineering arrangement

The 14th Bureau of China Railway is responsible for the manual track laying and beam erection in the pipeline section of our bureau. Track laying began in March 2003 and ended on May 25th. Girder erection started on May 3, 20031day and ended on June 25, 2003.

In order to ensure the smooth progress of track laying and girder erection, the bureau headquarters organized a survey class on September 30, 2002 to carry out a through survey of the whole line, and from June 65438+June 2002 to October 26, 200212002, the subgrade elevation, bridge span, bearing cushion stone elevation, position and depth of anchor bolt holes, bearing crosshairs and so on were measured.

7. Post-station and four-power project arrangement: main project of our bureau, building construction of Zhigou station, water supply and drainage, communication, signal and power engineering.

Construction arrangement:

1) building construction1771㎡; The construction department is responsible for the construction, which started in August 2002 and was completed by the end of June 2003. Equipment installation started on June 1 2003 and was completed on July 5, 2003.

2) Water supply and drainage works: main quantities: water source well 1 mouth, water supply pipeline 0.707km, drainage pipeline1.177km. The project started on March 20, 2003 and was completed on June 10, 2003. On June 30, 2003, after the construction of houses and water supply and drainage works was completed, the construction of roads, fences and fences in the station was completed.

3) Power engineering: construction started in May 1 year, outdoor cable laying was completed in May 10, indoor equipment installation was completed at the end of May, and outdoor equipment installation was completed on July 30, and the project reached the acceptance and delivery level at the end of August.

4) Communication equipment installation project: started on May 2003 10 and completed on July 20, 2003.

8, environmental protection measures

Educate the construction personnel in the Regulations on Environmental Protection Management of Construction Projects and the Regulations on the Implementation of People's Republic of China (PRC) Water and Soil Conservation Law, establish environmental awareness and consciously abide by the provisions of "environmental protection" and "water and soil conservation".

When subgrade earthwork is constructed, it should be afforested along with the construction according to the design, so as to reduce soil erosion and beautify the environment.

During the pier construction of Weihe Bridge No.2, the construction scheme should be reported to the local water conservancy and environmental protection departments for approval, and strict environmental protection measures should be formulated. During the construction of bored piles, the mud for wall protection shall be discharged in strict accordance with relevant regulations, and all construction sand shall be purchased. During the construction, all machinery and equipment are placed on the service road and temporary bridge to reduce the pollution to the river, and strict environmental protection measures are formulated to ensure the clear water of the Weihe River during the construction of the river-crossing bridge. Chapter II Construction Preparation

The first section construction survey

After receiving the bid-winning notice on September 30th, 20001year, according to the requirements of the group company, five companies formed an investigation team to carry out the construction investigation.

First, the construction survey leading group leader is Huang Tiande, the general manager of the five companies. Investigation unit and personnel:

chapter three

1) design documents and construction site survey data;

2) Code for Design of Railway Construction;

3) Relevant management measures issued by the new rubber headquarters of Jinan Bureau;

4) On-site introduction of design and supervision units of Jinan Bureau;

5) Requirements of environmental protection.

200 1 10 held a summary meeting of construction survey in Zhucheng Party School Hotel, Shandong Province. The meeting was presided over by the general manager of five companies, and Huang Tiande, the general manager, made an important speech. Fu Song, Minister of Engineering Department, made the following decisions at the construction preparation and arrangement meeting:

A after the handover of piles between the headquarters and the design institute, the headquarters shall immediately set up a breakthrough group for breakthrough measurement. During layout, pay attention to the connection and extension of control piles before and after this bid to ensure the accuracy of measurement, and sign the plane measurement results and prediction instruments to the supervision engineer in time to ensure the construction as soon as possible.

B, the second team, the seventh team, the thirteenth team, the fourteenth team and the sixteenth team of the fifth company carry out engineering construction, and the headquarters is selected in Zhucheng.

C, equipment and materials preparation: according to the owner's requirements for the construction period and progress, timely organize the deployment of all kinds of advanced and applicable mechanical equipment to meet the needs of the project, carry out maintenance on the mechanical equipment before entering the site, install and debug it after entering the site to ensure good performance during the construction period, and select and purchase engineering materials according to the design documents or the owner's requirements.

D. Temporary works: 1, temporary water and electricity. River water or nearby wells are used as construction water, and local electricity is mainly used as construction water, and generators are used in individual construction sites. 2. Temporary communication. The headquarters contacts the engineering team through program-controlled telephone; 3. Aggregate supply. Aggregate is purchased in a unified way, and the construction unit receives aggregate on site. On 200 1, 1, 1 year12, the group company held a special meeting in jiaoxin, attended by the main leaders of the company office, engineering management department, jiaoxin headquarters, five companies, six companies, electric company and construction department, and made clear the specific matters such as the division of tasks. Chairman Liu Chengshan made an important speech.

Second, the division of tasks

ZH-7 Bid Section of Jiaoxin Line was undertaken by five companies, six companies, construction department and electric power company.

Sixth Company: DK70+000~DK72+600 subgrade earthwork, bridge and culvert, subgrade ancillary works, ballast and related works, with the project price of150,000 yuan.

Construction Department: subgrade earthwork, bridge and culvert, subgrade accessory works, ballast and related works of DK72+600~DK 175+886 section, with a project price of 6,543,800 yuan.

Power Company: No.3 Power Project of Zhigou Station.

Company 5: For all projects except the above-mentioned unit projects, Company 5 is responsible for the penetration measurement of all blocks, and hand over the piles to Company 6 and the construction department in time according to regulations. On-site engineering test shall be undertaken by the laboratory of No.5 Company (located in Jiaozhou), and No.6 Company and the construction department shall go through the test procedures as required. On-site technical management is coordinated and managed by the engineering department of the headquarters, and each construction unit must do its own construction management work as required every month. Finally, Chairman Liu Chengshan emphasized five aspects, and hoped that all units would earnestly implement them, and hoped that this project would complete this task and make contributions to the group company.

Section 2 Construction Organization Design

I. Overall deployment

1. Organization: The jiaozhou-xinyi railway Engineering Headquarters of the Bureau is located on the third floor of Zhucheng Party School Hotel. The headquarters is set up with 1 command minister, executive deputy command minister and two deputy command ministers, 1 chief engineer, and the office is set up with six departments and one room: engineering management department, material management department, finance department, security department, machinery department and comprehensive office. The command department is responsible for the New Second Team, the Fifth Team (Sixth Company), the Sixth Team, the Fifth Company, the Second Team, the Seventh Team, the Thirteenth Team, the Fourteenth Team and the Sixteenth Team. The site management building department adopts the two-level management mode of the command department and the engineering team. See the figure for the specific organization.

2. Division of tasks and team bureau

Team 2: The station is located on the left side of DK75+ 100, and is responsible for subgrade earthwork construction from DK75+886 to DK87+400, with 0/20 workers.

Team 7: The station is located in Zhigou Town, and is responsible for the foundation construction of No.24 ~ 79 # and DK66+350~DK70+000, DK75+886~DK86+ 100 of the second Weihe Bridge, as well as the ballasting and new rubber abutment pier of Zhigou Station.

13th Team: Resident in Zhigou Town, responsible for DK84+798. 12 pier foundation of Weihe Second Bridge and all piers of the bridge, labor force 120.

Team 14: The team is located in Jiankou Town, and is responsible for the earthwork construction from DK66+350 to DK70+000, with 60 workers.

Sixteenth Team: The team is located in Jiankou Town and is responsible for the construction of D66+350~DK70+000, DK75+886~DK86+ 100 Zhigou Station and related large and medium-sized bridges.

Construction Department (Team 5): The pipe section is 2.286 kilometers long. The team is based in Jinjibu Village, and is responsible for the subgrade, bridge and culvert, ballast and the whole construction of DK73+600~DK75+886, and the building construction of the branch ditch station. The construction personnel 120 people.

Company No.6 (Team No.6): The pipe section is 2.9 kilometers long, and the team is responsible for subgrade earthwork, bridge and culvert, ballast and overall construction in DK72+000~DK72+600 section of Jiankou Town, with labor force 100.

Electrical work area: located in Zhigou Station, responsible for the construction of communication, signal and power line engineering in Zhigou Station, with a total of 50 people.

Second, the construction preparation

1. labor preparation: all managers and technicians of the new headquarters in Jiao Jiao were in place on June 6, 2000 as promised in the tender, and 200 people from all units entered the site on October 20, 2002.

2. Material preparation: According to the material management method of JIAOZHOU New Line, the construction unit has signed supply contracts with qualified suppliers for main materials such as steel and cement, and purchased them through bidding. Self-purchased materials such as crushed stone, flaky, medium sand, etc. shall be inspected and tested according to regulations, and the mixture ratio shall be selected, and a contract shall be signed with the supplier. The oil supply in this section adopts the way of contacting the gas station for fixed-point supply.

3. Equipment preparation: According to the engineering characteristics of this bid, mechanical equipment with advanced performance, good condition, high reliability, flexible operation and convenient maintenance shall be selected. At the same time, select experienced mechanical equipment management and maintenance personnel and equip them with enough mechanical parts to ensure the good operation of construction machinery.

4. Technical preparation: The control piles and leveling points were handed over to the Third Survey and Design Institute of the Ministry of Railways on October 5th, 2006, 5438+0, TCT02 000 1 ~ 200 1, 16. After receiving the design documents and construction drawings, the chief engineer shall organize construction technicians to read the design documents carefully, understand the design drawings and technical standards, be familiar with the design drawings, conduct drawings review and technical disclosure, and timely understand the existing problems with the owners and design units.

5. Temporary roads and temporary bridges: This bid section belongs to thick-bedded areas. There are many parallel crossing roads between National Highway 206 and the railway, with dense roads. During the construction period, the existing roads will be used for further reconstruction. Bridges and extra-large bridges are introduced by using existing roads, and longitudinal access roads are combined with new repair and widening of existing roads. The construction standard of hard road is 4.5 meters for subgrade and 3.5 meters for pavement.

6. Temporary power consumption and temporary water consumption: the construction power consumption of this bid section is temporarily combined to supply power to the main construction site. DK83+500 and DK86+ 100 are each equipped with a 400KVA transformer to supply power to the second Weihe Bridge, and two 200KW generators are standby. The remaining bridges and culverts were built by using rural power transformers and small generators to provide construction electricity. This bid section is rich in groundwater and surface water. Local tap water is used for domestic water, and Shanggou River, Malan River, Taikoozhuang River and Weihe River are used for construction water. The water quality of the four rivers are all qualified, and they are all extracted from the rivers or transported to various construction sites by water trucks.