A construction method for diversion of existing river courses

Abstract

The present application relates to a construction method for diversion of an existing river course, which includes the following steps: Step 1: driving the locking steel sheet piles along the river course at positions close to the river embankment on both sides of the river course; Make cement mixing piles and conduct drainage treatment on the concave side of the river channel; Step 3: excavate a backfill on the convex side of the river channel and backfill it to the concave side of the river channel to form a slope protection; Step 4: Apply soil to the backfill position on the concave side of the river channel Make cement mixing piles; Step 5: Make cast-in-place piles under the sidewalks on both sides of the river. The soil excavated from the protruding side of the river channel is backfilled to the concave side of the river channel to straighten the curved channel, reduce the impact of the water flow on the river bank, and make it difficult for the river channel to burst its banks; cement mixing piles increase backfilling The strength of the soft soil foundation at the location; the cast-in-place pile increases the strength of the foundation at the sidewalk of the river, so that the soil in the sidewalk is not easy to move to the side of the river when it is under pressure.

Description

technical field [0001] The present application relates to the field of river construction, in particular to a construction method for diversion of an existing river. Background technique [0002] Most of the rivers within the scope of the project were constructed before the 1990s, which did not meet the flood control and drainage standard once in 50 years. At present, the current situation on both sides of the river is mainly residential and fish ponds, and there are also some farmlands, which undertake the functions of tide blocking, irrigation and drainage. The embankments are mostly earth embankments and dry stone embankments with steep slopes. There is no unified planning, design and management, which leads to messy, and some sewage is directly discharged into the river, causing serious water pollution, silt and garbage blocking the river, seriously affecting the flood flow of the river, and causing flooding in some areas. Due to long-term water erosion, the river is sev...

AI Technical Summary

Problems solved by technology

There is no unified planning, design and management, resulting in messy, some sewage is not up to standard and directly discharged into the river, resulting in serious water pollution, silt garbage clogging the river, seriously affecting the flooding of the river, causing flooding in some areas, and serious river erosion due to long-term water erosion , forming a certain security risk

[0003] In view of the above-mentioned related technologies, the inventor believes that there is a river for bending, because the side of the river is easy to be scoured, and the width of the river is small, which is likely to cause the risk of embankment bursting

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