Tunnel lining stripping crack distance control structure and method
A disease remediation and lining technology, applied in tunnel lining, tunnel, shaft lining, etc., can solve serious engineering accidents, loss of bending moment resistance at cracked linings, and threats to the safety of railway transportation of tunnel lining structures.
Active Publication Date: 2017-06-13
KUNMING SURVEY DESIGN & RES INST OF CREEC
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Problems solved by technology
The cracks and pieces of the tunnel lining are seriously cracked, causing the cracked lining to lose its ability to resist bending moments and become hinged, which seriously threatens the safety of the tunnel lining structure and railway transportation. Moreover, this disease has the characteristics of accumulating over time. If it is not rectified, it will inevitably lead to more for serious engineering accidents
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[0034] The present invention will be described in further detail below through the accompanying drawings and examples, but the protection scope of the present invention is not limited to the content described.
[0035] Such as Figure 1-6 As shown, a tunnel lining peeling crack damage treatment structure in this embodiment is anchored by positioning drill nails 1, backing plate 2, circumferential steel bar 3, longitudinal steel bar 4, locking foot drill nails 5, shotcrete 6, and backing plate 7 steel bars, fillet welds 8, and drill nuts 9. The circumferential steel bars and longitudinal steel bars form a reinforcement mesh. The circumferential steel bars are anchored in the lining side wall by locking feet. The plate 2, the backing plate anchoring steel bar 7, the fillet weld 8, and the drill nut 9 are anchored on the two longitudinal steel bars of the steel mesh. On the steel bar, the backing plate anchoring steel bar is arranged parallel to the longitudinal steel bar, and i...
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The invention relates to a tunnel lining stripping crack distance control structure and method. The tunnel lining stripping crack distance control structure comprises a locating drill nail, annular reinforcing steel bars, longitudinal reinforcing steel bars, a foot locating drill nail, a drill nail fixing structure and sprayed concrete, wherein the annular reinforcing steel bars and the longitudinal reinforcing steel bars form a reinforcing steel bar mesh; the annular reinforcing steel bars are anchored on a lining side wall through the foot locating drill nail; the locating drill nail is anchored on the adjacent longitudinal reinforcing steel bars of the reinforcing steel bar mesh through the drill nail fixing structure at the top; the drill nail fixing structure comprises a base plate; two ends of the base plate are provided with bending parts; the bending parts are clamped on two longitudinal reinforcing steel bars; and the annular reinforcing steel bars, the longitudinal reinforcing steel bars, the foot locating drill nail and the drill nail fixing structure are wrapped with the sprayed concrete. The invention further relates to a tunnel lining stripping crack distance control method. By adopting the structure, the problem of a tunnel lining stripping crack distance can be effectively solved on the premises that the security and the functions of an existing lining structure of the tunnel are ensured and the tunnel demarcation requirement is met; and the tunnel lining stripping crack distance control structure has obvious engineering value and social benefits and is worthy of popularization and application.
Description
technical field [0001] The invention relates to a tunnel disease treatment structure, in particular to a tunnel lining peeling crack damage treatment structure and a treatment method thereof, belonging to the technical field of tunnel engineering. Background technique [0002] With the gradual advancement of my country's railway construction, more and more existing tunnels are facing various disease problems. In order to ensure the safety and functional use of the tunnel lining structure and railway transportation, it is necessary to spend a lot of resources to remediate the diseases. For tunnels that have been built for a long time, the tunnel lining in the high ground stress section is prone to internal extrusion and deformation due to the large surrounding rock pressure, resulting in problems such as lining cracks at the arch top and arch feet, and peeling off blocks. The cracks and pieces of the tunnel lining are seriously cracked, causing the cracked lining to lose its ...
Claims
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IPC IPC(8): E21D11/10E21D11/38
Inventor 罗云飞罗吉祥丁文云郭永发殷洪波罗胜利姚贺东何永平李贵民刘正初肖永刚袁云洪田鲁鲁伍容兵常胜涛
Owner KUNMING SURVEY DESIGN & RES INST OF CREEC