A hydraulic support device for deformation of two sides of coal seam roadway and its realization method

A technology of hydraulic support and hydraulic props, which is applied in the direction of earthwork drilling and mining, installation of bolts, pillars/brackets, etc., can solve problems such as roadway instability, surrounding rock looseness, increased roadway support cost and construction difficulty, and achieve improvement Carrying capacity, reduced risk of damage, and good promotion and application value

Active Publication Date: 2019-10-22
SHANDONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0005] In order to overcome the technical defects of roadway deformation, instability and surrounding rock loosening caused by improper two-side support technology, thereby increasing the support cost and construction difficulty during roadway renovation, the present invention provides a high-strength yielding, safe and reliable coal seam Deformation hydraulic support device and method for roadway two sides

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  • A hydraulic support device for deformation of two sides of coal seam roadway and its realization method
  • A hydraulic support device for deformation of two sides of coal seam roadway and its realization method
  • A hydraulic support device for deformation of two sides of coal seam roadway and its realization method

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Embodiment Construction

[0048] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] refer to Figure 1-2 As shown, the coal seam roadway of the present invention has two side deformation control monitoring hydraulic devices, which includes:

[0050] Vertical hydraulic props 2 are symmetrically arranged along the axis of the roadway 1;

[0051] The transverse strut 3 includes a transverse cylinder 31, a transverse piston rod 32 and a compression mechanism 33. The transverse cylinder 31 is horizontally arranged on the top of the vertical hydraulic prop 2, and the transverse piston rod 32 is symmetrically arranged on both sides of the transverse cylinder 31. And the outer end of the transverse piston rod 32 abuts against the two gangs of the roadway 1 respectively, and the pressure relief mechanism 33 is arranged between the inner side end of the transverse piston rod 32 and the transverse cylinder 31, and the pressure ...

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Abstract

The invention discloses a hydraulic support device for deformation of two sides of a coal seam roadway and a realization method thereof. The device comprises a vertical hydraulic prop arranged symmetrically along the axis of the roadway; a transverse prop includes a transverse cylinder body, a transverse piston rod and a pressure relief mechanism , the horizontal cylinder is arranged horizontally on the top of the vertical hydraulic prop, the horizontal piston rods are symmetrically arranged on both sides of the horizontal cylinder, and the outer ends of the horizontal piston rods are respectively connected to the roadway The two sides abut against each other, and the pressure relief mechanism is arranged between the inner end of the transverse piston rod and the transverse cylinder, and is used to control the movement of the transverse piston rod to the transverse direction according to the deformation amount of the two sides of the roadway. The cylinder moves to give way. The invention improves the bearing capacity of the two sides of the roadway, prevents large deformation of the roadway, and can take timely measures to control and reinforce the side of the roadway, and the invention has high-strength yielding, safe and reliable support characteristics, and has good promotion Value.

Description

technical field [0001] The invention relates to the technical field of deformation control of two sides of a coal seam roadway, in particular to a hydraulic device for controlling and monitoring deformation of two sides of a coal seam roadway and a method for using it. Background technique [0002] In recent years, with the continuous deepening of coal mining depth, the stability of roadway support in deep coal seams has become one of the main problems restricting the safe mining of deep coal seams and the improvement of technical and economic benefits. After entering the deep coal seam mining, the geological structure is complex and changeable. After being affected by mining, the deformation of the surrounding rock of the coal seam roadway is large and lasts for a long time. If the roadway support technology is improper, the deformation of the roadway will become more and more serious, and eventually lead to deformation and instability of the roadway and damage. As a key l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D15/44E21D15/46E21D20/00E21D15/50
Inventor 宁建国杨尚王俊邱鹏奇商和福
Owner SHANDONG UNIV OF SCI & TECH
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