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Underground goaf processing method combining filling and artificial supporting columns

A processing method and combined technology, applied in fillings, pillars/supports, earthwork drilling, etc., can solve problems such as difficulty in constructing artificial pillars, and achieve the effect of safe surface and high degree of mechanization

Active Publication Date: 2021-08-03
ANSTEEL GRP MINING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Leave permanent pillars to deal with the underground void area is to set some permanent pillars in the underground void area to support the underground void area, but for the existing underground void area, there are no pillars in the void area, and artificial pillars need to be built, and the depth of the underground void area is average They are all relatively large, and personnel cannot enter the empty space for construction. Therefore, it is difficult to build artificial pillars from the roof to the bottom of the underground empty space.

Method used

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  • Underground goaf processing method combining filling and artificial supporting columns
  • Underground goaf processing method combining filling and artificial supporting columns
  • Underground goaf processing method combining filling and artificial supporting columns

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Embodiment Construction

[0025] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as Figure 1-Figure 4 As shown, a method for treating underground voids combined with filling and artificial pillars according to the present invention is characterized in that the roof of the underground voids is divided into several areas 2 along the direction, and a filling well is arranged at the center of each area 2 3. The filling well 3 is directly connected to the underground space 1 from the surface 6, and the gravel and dressing tailings are filled into the underground space 1 through the filling well 3 on the surface 6 as the lower filling body 4 of the underground space 1, such as image 3 As shown, the distance between the surface of the filling body 4 in the lower layer and the bottom of the filling well 3 is b = λ 1 T / (λ 1 -λ 2 +1), lower the reinforcement cage 5 from the filling well 3, so that the lo...

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Abstract

The invention provides an underground goaf processing method combining filling and artificial supporting columns. The underground goaf processing method combining filling and the artificial supporting columns aims to solve the problem that an underground goaf filling method cannot be in roof contact, artificial steel-concrete supporting columns connected with a top plate are built on an underground goaf filling body to jointly support the ground surface, and the method can be completed through one-time construction, and belongs to the underground goaf processing method combining filling and the artificial supporting columns. The underground goaf processing method combining filling and the artificial supporting columns is suitable for treating medium and small underground goaf areas, and has the advantages of high mechanization degree, safety and no subsidence of the ground surface.

Description

technical field [0001] The invention belongs to the field of underground empty area treatment, and relates to an underground empty area treatment method combining filling and artificial pillars. Background technique [0002] Underground voids cause surface deformation, cracking, and subsidence, occupying and destroying a large amount of land, forests, and water resources, threatening industrial and agricultural production, transportation, and people's life and property safety, and bringing serious economic, social, and environmental problems. [0003] At present, there are mainly the following types of underground goaf treatment technologies at home and abroad: filling underground goafs, leaving permanent pillars, sealing and isolating goafs, reinforcing and treating goafs, and treating goafs with collapsed surrounding rocks, among which filling underground goafs, The permanent pillar method is used more in practice. [0004] Filling the underground empty area is to use was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/00E21F17/00E21D15/00
CPCE21F15/00E21F15/005E21F17/00E21D15/005Y02W30/91
Inventor 邓皓泽宫国慧马东李宗武李冬陈宏灏郭海涛
Owner ANSTEEL GRP MINING CO LTD
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