How long is Anping Bridge in Nan 'an Shuitou? Is it really five miles?

According to the investigation of Quanzhou Cultural Relics Department, Anping Bridge is now 2,262.79 meters long, 7.79 meters longer than 1.985, and 437.438+0 meters shorter than when the bridge was built in the Southern Song Dynasty.

It is said that the length of this measurement refers to the length from the bridgehead of Anping Bridge in Shuitou Town to the Baita in Anhai Town.

Yesterday at 2 1: 30, calculated by Huang Shichun, the former director of Jinjiang Museum who was in charge of measurement at the scene, the relevant data finally came out:

The widest point is 4.00 meters, and the narrowest point is 2.90 meters, all of which appear near the water head.

* * * 363 piers and 362 bridge holes;

There are 2288 * * stone strips between piers, the longest stone strip is 12. 15m, which is located between Shuitou Qiaotou 165 and 438+0 ~ 12 piers. This is the only hole paved with only four stone strips 3.00 meters wide. ..

However, 5 stone strips have 17 holes, 6 stone strips have 208 holes, 7 stone strips have 135 holes, and 8 stone strips have 1 hole.

The bridgehead from Zhongting to Nan 'an Shuitou is1127.53m long, and the Baita from Zhongting to Jinjiang Anhai is1135.26m long.

According to historical records, after the completion of Anping Bridge, the magistrate ordered him to write it down personally: "Its length is 8 10 feet (about 2700 meters), its width is 10 feet 6 feet (more than 5 meters), and the canal length is 360 feet 2".

It is understood that from June 5438+065438+ 10, Quanzhou Cultural Relics Department began to conduct a comprehensive survey of Anping Bridge, recording various data of Anping Bridge, including its length, and establishing archives.

Huang Zhenzhen, deputy director of the Quanzhou Cultural Relics Protection Management Office, said that in order to scientifically preserve the information of Anping Bridge, a national cultural relics protection unit, the survey included very detailed data, including the bridge itself and related cultural relics; And save materials in the form of rubbings, including inscriptions, couplets, plaques, etc.

How is the length of the bridge measured?

Huang Shichun introduced that this measurement is measured with a ruler, a pier and a pier, and then the final result is calculated by accumulation.

"A stone is a stone, a pier in the past. In order to reduce the error, each measurement is as fine as centimeters. "

He said that in fact, the length is only an indicator, and it also includes various materials and data such as the length of stone strips and the shape of piers between each bridge.

After the survey, the plan, elevation and section of Anping Bridge will be drawn, and the structure of the whole bridge will be reflected in these drawings.

"However, the workload of drawing is greater, and it is expected to take several months."

Why is the length of the bridge shorter?

The measured length is 2262.79 meters; 1980 to 1985 after overhaul, the measured length is 2255 meters; Furthermore, according to historical records, when the Song Dynasty was completed, it was 2700 meters long.

Question 1: Why does the length of the bridge change, and will it expand with heat and contract with cold?

Huang Shichun explained that it was mainly caused by the destruction of the approach bridges on both sides of the bridge in various periods. "When this bridge was built in the Southern Song Dynasty, it was * * * 2,700 meters, including the approach bridge, which refers to the length between the Chao Hai Temple and the White Pagoda. If you count the distance on land, it will increase by one or two hundred meters. "

"Since then, although each dynasty has been rebuilt for more than ten times, the old ones are constantly damaged, the bridge slab is broken, and the pier collapses and tilts. 1980, the state allocated special funds for comprehensive renovation, and the project was completed in May 1985. At that time, part of the bridge body of the approach bridge from Anhai Qiaotou to Baita was damaged, and the approach bridge from Shuitou Qiaotou to Chao Hai Temple was also damaged, so the measured length was

"In recent years, the bridgehead from Anhai to Baita has been repaired by the damaged approach bridge, so this time the length from the bridgehead of Anping Bridge in Shuitou Town to Baita in Anhai Town is measured."

Question 2: Is Wuli Bridge five miles long?

Anping Bridge is one of the first national key cultural relics protection units. Connect Anhai Town of Jinjiang City and Shuitou Town of Nan 'an City.

It was founded in Shaoxing in the Southern Song Dynasty in the eighth year (A.D. 1 138) and completed in the thirteenth year. According to the Records of Jinjiang County, in the eighth year of Shaoxing in the Song Dynasty, the founder of monks began to build a stone bridge, and then stopped for some reason. In the 21st year of Shaoxing (1 15 1), Zhao Jingling, the magistrate of Quanzhou, continued to build, which was completed one year later. Anping Bridge is the longest beam stone bridge in the world in the Middle Ages, so it is known as "no bridge in the world is so long".

It is reported that Anhai was called Anping in ancient times, so this bridge is also called "Anping Bridge". Also called Wuli Bridge. How long is Wuli?

According to Huang Zhenzhen, there was no concept of rice in ancient times, but now a mile is about 450 meters. "So, the five miles at that time were equivalent to about 2250 meters now."