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An artificial floor for preventing bottom heaving of soft rock roadway and its construction and maintenance method

A floor and roadway technology, which is applied to the field of artificial floor and its construction and maintenance to prevent floor drums in soft rock roadways. It can solve the problems of inconvenient maintenance of floor drums, complex support structures, and floor erosion, and achieve water erosion and seepage prevention. The water effect is good and the effect of reducing the degree of influence

Active Publication Date: 2020-03-06
LIAONING TECHNICAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide an artificial bottom plate for preventing bottom heaving of soft rock roadway, so as to solve the problems that the bottom plate of soft rock roadway is eroded by roadway seepage, complex support structure, support materials cannot be reused, and bottom drum is inconvenient to maintain. question

Method used

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  • An artificial floor for preventing bottom heaving of soft rock roadway and its construction and maintenance method
  • An artificial floor for preventing bottom heaving of soft rock roadway and its construction and maintenance method
  • An artificial floor for preventing bottom heaving of soft rock roadway and its construction and maintenance method

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with drawings and embodiments.

[0052] This embodiment is an artificial floor laid in a soft rock roadway with a mine floor width of 4200 mm.

[0053] Such as figure 1 As shown, the artificial floor is formed by splicing square floor modules 1 laid on the roadway floor 12 .

[0054] Such as figure 2 and image 3 As shown, the floor module is composed of a reinforced concrete block with inter-connected vertical drainage pipes 2, horizontal drainage pipes 3 and vertical drainage pipes 5, wherein the upper end of the vertical drainage pipes is laid on the upper surface V of the floor module. The metal filter screen 13 in the shaped water tank 4 is connected; there are guard plates 7 made of channel steel on both lateral sides of the bottom plate module, and there are lifting rings 9 on the guard plate, and there is a hydraulic jack on the outer surface of one side of the guard plate. The hemispheric...

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Abstract

The invention discloses an artificial baseboard for preventing floor heave of a soft rock roadway and a building and maintaining method of the artificial baseboard. The artificial baseboard is composed of two rows of reinforcing steel bar concrete baseboard modules which are laid at the two sides of the middle axis of a roadway baseboard through concrete cushion blocks in the direction of the roadway baseboard; the portion between every two adjacent baseboard modules in the longitudinal direction is filled with flexible waterproof sealing filler, and drainage pipelines in the modules are communicated with one another in the longitudinal direction to form drainage blind ways; hydraulic jacks are arranged among the adjacent modules in the transverse direction; U-shaped drainage grooves are formed in the lower portions of the jacks; the baseboard modules and the roadway sides are filled with concrete filler with the upper portion covered with a waterproof material. Building of the artificial baseboard is completed through the steps of prefabricating of the baseboard modules, casting of the concrete cushion blocks, laying of the baseboard modules, building of the drainage channels, installing of the jacks, laying of a track and the like; when the roadway suffers from floor heave, a two-side alternating repairing mode is adopted. According to the artificial baseboard, the technicalproblems are solved that soft rock roadways easily suffer from floor heave when a baseboard is eroded by seeped water of the roadways, the support structure is complicated, the support material cannotbe recycled, and the maintenance is inconvenient.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to an artificial floor for preventing bottom heaving of a soft rock roadway and a construction and maintenance method thereof. Background technique [0002] Floor drum is a common phenomenon of mine pressure in soft rock roadway of coal mine. With the increasing scale of my country's coal production and the increasing depth of mining, bottom drum disasters are increasing day by day. When the floor drum occurs in the roadway, the height of the space between the roof and the floor of the roadway will be reduced to varying degrees, hindering the normal transportation, pedestrians and ventilation of the roadway; serious roadway floor drum will affect the overall stability of the surrounding rock of the roadway, and will affect the safety of deep mines. Safe and efficient mining poses a huge threat and directly affects the smooth progress of coal mine safety production. [0003] Mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08E21F16/02E21D11/10E21D9/01B28B15/00B28B11/24B28B13/02
CPCB28B11/24B28B13/02B28B15/00E21D9/01E21D11/08E21D11/086E21D11/10E21F16/02
Inventor 南存全王礼江武小慧
Owner LIAONING TECHNICAL UNIVERSITY
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