Rapid curing method for mine laneway muddy bottom

Abstract

The invention uses a rapid high strong fixing agent to solidify the soleplate mudstone inside a lane. The mudstone after solidified by the rapid high strong fixing agent is pressed and shaken to form a base layer of the lane surface directly, and then the concrete or asphalt surface layer is paved on the solidified road base layer, thereby forming an integrated roadbed road surface. The invention not only can repair the damaged road surface of the lane rapidly to guarantee the smooth production but also solve the problem of the waste mud polluting the environment; moreover, the economical efficiency is superior to that of the prior operation method that the concrete soleplate is pressed after the desilting.

Description

technical field [0001] The invention belongs to the technical field of mine engineering, and relates to a rapid hardening method and technology applicable to the muddy bottom plate of mine roadway, which can directly harden the mudstone mud in the bottom plate of the roadway, and lay a certain thickness of road surface on the mud hardened roadbed as required layer, realize the rapid hardening of the roadway floor and pass vehicles and equipment, and increase the speed of roadway excavation. Background technique [0002] With the development of coal mining technology, large-scale coal mines are promoting the method of continuous miner to excavate roadways, and rubber-tyred vehicles are used as the main auxiliary transportation method. When the floor of the roadway is mudstone or carbonaceous mudstone, under normal circumstances, the floor is relatively complete; after the roadway is excavated, due to the impact of water seepage from the floor and the two sides, the floor rock...

AI Technical Summary

Problems solved by technology

When the floor of the roadway is mudstone or carbonaceous mudstone, under normal circumstances, the floor is relatively complete; after the roadway is excavated, due to the impact of water seepage from the floor and the two sides, the floor rock will soften after encountering water, and after being rolled by rubber-tyred vehicles , the bottom plate is rapidly destroyed, and the mud is serious, which seriously affects the progress of excavation and auxiliary driving transportation, and at the same time causes damage to excavation equipment and rubber-tyred vehicles

For this reason, the traditional treatment method is: clean up the mud → pad stones → level the stones → concrete the bottom slab. In this way, with the continuous increase of production, the cost of bottom slab treatment will gradually increase

In addition, the cleared mud will also cause serious pollution and harm to the surrounding environment of the mining area. Since the concrete needs a curing period of at least 7 days, vehicles and equipment cannot pass through the roadway during the concrete curing period, which affects the driving speed of the roadway

Images