Completion of heavy excavation and crossing projec

2022-08-22
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Completion of large excavation crossing project of Changhe River in Hunan Jiangxi Section

Introduction: on April 2, the large excavation crossing and backfilling project of Changhe River in the eastern section of the west second line was completed. Changhe river is located in Jiujiang County, Jiujiang City, Jiangxi Province. It is an inland river. On the north bank is the local large-scale Fish Farm Lake. The crossing river section is constrained by the river embankment to form a narrow riverbed. The parts and materials of related products such as electronics and electricians, automobiles and motorcycles, aerospace, ships and weapons, colleges and universities, scientific research institutions and so on change in cycles of high and low temperature (alternating). Due to the influence of Saihu lake, Hanoi has large water volume and fast flow velocity

on April 2, the heavy excavation crossing and backfilling project of Changhe River in the eastern Hunan Jiangxi Section of the west second line was completed

the long river is located in Jiujiang County, Jiujiang City, Jiangxi Province. It is an inland river. On the north bank is the local large-scale Fish Farm Lake, and the crossing river section is constrained by the river embankment to form a narrow riverbed. Due to the influence of Saihu lake, the water volume in the river is large, the flow velocity is fast, the water level is 14 meters deep, and the horizontal length of the design crossing is 74 meters

the fourth pipeline company adopts the cofferdam large excavation crossing method for construction. On this basis, the project Department of the company adopts the form of three-layer stepped slope. The excavation of pipe trench is a necessary testing instrument for metallurgy, machinery manufacturing and other units. The excavation depth is up to 15 meters and the length is up to 120 meters

a total of 8 excavators, 2 loaders, 8 large-diameter water pumps and 2 generator sets were invested in the crossing project. It took only 4 months from excavation to backfilling

the successful completion of the large excavation project of the long river has accumulated experience for the fourth company of the pipeline to cross large rivers in the water section

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