Support structure passing geological abnormal zone extreme crushing soft rock tunnel and construction method of support structure
A technology of geological anomalies and support structures, applied in tunnels, tunnel linings, underground chambers, etc., can solve problems such as difficulties in construction and support work, large deformation of roadways, and potential safety hazards, and achieve structural bearing capacity, The effect of reliable quality and strong applicability
Active Publication Date: 2014-02-05
ANHUI UNIV OF SCI & TECH
View PDF6 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] When deep coal mine roadways pass through abnormal geological zones such as faults, due to the geological structure, the rock mass in the abnormal zone is abnormally broken, loose, and contains water. Nursing work has caused great difficulties and there are major safety hazards
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0036] see figure 1 , the cross-section of the arc-shaped single component 2 is rectangular, and a 20mm thick compressible backing plate 3 is provided at the joint to realize compressible compression.
Embodiment 2
[0038] An anchor 2c (length 100 mm) is provided on the inner arc surface and the joint surface of the arc-shaped single member 2 toward the inner cavity of the member pipe body 2a to strengthen the bonding with the concrete.
Embodiment 3
[0040] Two grouting holes / hanging holes 4 are evenly distributed in the circumferential direction of the arc-shaped single member 2, which facilitates hoisting in underground construction and grouting filling behind the wall.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a support structure passing a geological abnormal zone extreme crushing soft rock tunnel and a construction method of the support structure. The support structure comprises a steel plate high-strength concrete layer disposed peripherally along the inner wall of the tunnel. The steel plate high-strength concrete layer is formed by a plurality of arc-shaped single components which are sequentially connected. Each arc-shaped single component comprises a tubular body made of steel plates, and high-strength expansion concrete is filled in the inner cavity of the tubular body. The arc-shaped single components are constructed in a way that the bottoms are firstly mounted, then the two sides are mounted, and finally the tops are sealed. The support structure has the advantages that the whole circle of support can be assembled underground using number-adjustable prefabricated arc-shaped single components according to the section size of the circular tunnel, and the support structure is high in adaptability, reliable in quality, convenient to manufacture, and high in strength and support resistance.
Description
technical field [0001] The invention relates to the field of mine roadway support, in particular to a support structure and a construction method for a very broken soft rock roadway in a geological anomaly zone. Background technique [0002] When deep coal mine roadways pass through abnormal geological zones such as faults, due to the geological structure, the rock mass in the abnormal zone is abnormally broken, loose, and contains water. Nursing work has caused great difficulties and there are major safety hazards. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a support structure and construction method for extremely broken soft rock roadways in abnormal geological zones, which can avoid unfavorable situations such as multiple damages and repairs in roadways in abnormal geological zones. . [0004] A supporting structure for a roadway passing through extremely brok...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/18
Inventor 姚直书程桦唐永志许绍东荣传新宋海清蔡海兵王晓健郑腾龙
Owner ANHUI UNIV OF SCI & TECH