Method for reinforcing cracked and damaged lining of operation tunnel
A technology of lining and crack damage, which is applied in the direction of tunnel lining, tunnel lining, shaft lining, etc., can solve the problems of high construction cost, large impact on tunnel operation, frequent falling off of sprayed materials, etc., and achieve the effect of small economy
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[0029] The specific embodiments of the present invention will be described in detail below in conjunction with the drawings.
[0030] See figure 1 , figure 2 with image 3 The method for reinforcing and strengthening the cracked lining of an operating tunnel provided by the present invention uses bolts, steel mesh, ribbed steel bars, and shotcrete to reinforce the cracked lining, and connects the lining and surrounding rock to improve the lining structure The overall stability of the system includes the following steps:
[0031] a. Clean the surface of the lining: remove the existing decorative layer, oil stains, floating dust and other impurities on the concrete surface;
[0032] b. Clearance judgment: According to the measurement data of the clearance section and the boundary size, the lining of the partial clearance is insufficient to ensure that the sprayed concrete does not invade the limit;
[0033] c. Construction of anchor rods: comprehensively consider the surrounding rock ...
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