Land rectification method for coal mining subsidence areas in plain areas

Abstract

The invention discloses a land rectification method for coal mining subsidence areas in plain areas. The method includes 1, treatment region division; according to the spatial distribution features of earth surface distribution curves, dividing the earth surface moving basin into four treatment regions, namely an edge region, a side slope region, a slope base region and a basin base region from exterior to interior; 2, segmented region treatment; treating the edge region by a field internal flattening method, treating the side slope region by the field internal flattening method when the slope angle of the side slope region is smaller than 5 degrees and treating by a level terrace method when the slope angle of the side slope region is not smaller than 5 degrees, treating the slope base region by the field internal flattening method, and treating the basin base region by the method combing intercepting ditches and pumping stations. The method of 'segmented treatment and partial optimization' is adopted, the steps are simple, design is reasonable, implementation is facilitated, treatment effect is fine, and the earth surface moving basin of the plain area caused by coal mining can be treated effectively.

Description

technical field [0001] The invention belongs to the technical field of coal mining subsidence area control, and in particular relates to a method for land improvement in a coal mining subsidence area in a plain area. Background technique [0002] Coal is the most important energy source in our country, and 90% of the coal resources are mined through wells. Mining subsidence has caused a large amount of land damage. How to scientifically control subsidence and damaged land is an urgent requirement for the protection of cultivated land and environmental restoration of mining areas in my country. Due to the wide distribution of coal resources in my country, different natural conditions, large differences in resource endowments, and various forms of land damage, a unified governance model cannot be formed. It is necessary to develop suitable governance methods for specific damage conditions in different types of areas. [0003] The ground surface movement basin is the range of ...

AI Technical Summary

Problems solved by technology

At present, although many scholars have conducted some research on the treatment of this type of damaged land, the treatment methods are still relatively extensive, and there is no detailed analysis of the morphological characteristics of the coal mining subsidence basin, and correspondingly no targeted treatment measures have been proposed.

Therefore, there is a lack of a land consolidation method in the coal mining subsidence area in the plain area with simple steps, reasonable design, convenient implementation, and good governance effect, which can effectively control the surface mobile basin caused by mining in the plain area.

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