Construction method of beach clearing material for small and medium-sized rivers in mountainous areas

Abstract

Disclosed is a method for embankment construction using removed river deposit from medium and small rivers in a mountainous area. The method comprises the following steps that after impurities in beach pebble gravel and sandy soil are removed, the beach pebble gravel and the sandy soil are evenly mixed, transported to an embankment body and rolled in a layering mode to be compact; a clay seepage-proof inclined wall is arranged on the surface of the side, close to the corresponding river, of the embankment body along the slope in a filled mode; an inverted filter layer is arranged on the surface of the clay seepage-proof inclined wall; a revetment portion is arranged on the inverted filter layer; and a toe protecting portion is arranged on an embankment toe. According to the invention, due to the fact that removed river deposits are used for embankment construction, the constraint of the traditional thought that embankment construction needs to use homogeneous soil is broken, the technical measure which is easy and convenient to use and economical is adopted, the embankment stability and the seepage stability are ensured, outward transportation of the removed river deposits can be reduced, transportation of the homogeneous soil for embankment construction can also be avoided, the project investment is saved, and the ecology is protected. The method is applicable to embankment construction in the mountainous area.

Description

technical field [0001] The invention relates to an embankment construction method, in particular to an embankment construction method with beach clearing materials for small and medium-sized rivers in mountainous areas. Background technique [0002] There are many rivers in mountainous areas, the rivers are short and have a large gradient, so that the floods come and go quickly, and most of them are rivers with no embankments or low embankment standards, and the flood control capacity of the rivers is low. Major disasters such as destroying villages and roads, submerging farmland, etc., and most of the small and medium-sized rivers have fertile land, dense population, and great losses in flood disasters. [0003] Small and medium-sized rivers in mountainous areas have small basin area, short flow, short confluence time, large river slope, and steep flood seasons with steep rises and falls, while the flow rate in dry seasons is small, and some of them are basically cut off. ...

AI Technical Summary

Problems solved by technology

According to the traditional treatment methods and requirements of large rivers, river embankments must be filled with homogeneous soil, and river beach cleaning materials cannot be used for embankment construction. , the construction of a storage yard for storage takes up a lot of land, and the storage yard often becomes a problem;

In this way, it not only increases investment, wastes land, destroys forests, wastes resources, and destroys ecology, but also easily increases the contradiction between the project and the local area, which is not conducive to the smooth progress of project construction.