Tunnel vault danger removing device and method after blasting construction
A vault and tunnel technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of falling fragments of surrounding rock and inconvenient filling of gaps, so as to reduce the risk of falling blocks and reduce the risk of water leakage.
Active Publication Date: 2021-05-25
中建七局交通建设有限公司
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Problems solved by technology
[0003] In view of the above situation, in order to solve the problems existing in the prior art, the purpose of the present invention is to provide a tunnel vault risk removal device and method after blasting construction, which can effectively solve the risk of falling of surrounding rock fragments after blasting, and at the same time, the gap cannot be closed. The problem of inconvenient filling
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[0019] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] Depend on Figure 1 to Figure 8 Given, the present invention consists of four parts: a fixed installation module, an angle adjustment module, an arc adjustment module, and a gravel scraping and grouting module;
[0021] The fixed installation module includes a fixing clip 1, and two left and right fastening bolts 2 are arranged on the fixing frame,
[0022] The angle adjustment module includes a device base 3 fixedly installed on the upper surface of the fixing clip 1; the upper end of the device base 3 is equipped with a rotating support rod 5 in Zhuhai, and the rotating support rod 5 is fixed with a rotating shaft 6 in the front and rear direction There is a rotating base 7 above the rotating shaft 6; the rotating base 7 is hinged with the rotating shaft 6, and two rows of rotating hydraulic rods 4 are installe...
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The invention relates to a tunnel vault danger removing device and method after blasting construction. The device effectively solves the problems that after blasting, the falling risk of surrounding rock fragments exists, and meanwhile gaps cannot be conveniently filled. According to the technical scheme, the device comprises four sections of a fixed mounting module, an angle adjusting module, a radian adjusting module and a gravel scraping and grouting module. The fixed mounting module is composed of a fixing clamp and a fastening bolt. The angle adjusting module is composed of a device base, a rotating hydraulic rod, a rotating supporting rod, a rotating shaft, a rotating base, a rotating sliding rod and a rotating jacking base. The radian adjusting module is composed of a sliding base, a sliding groove, a sliding limiting plate, a fixed supporting rod, a sliding supporting plate, a rotating connecting shaft, a sliding hydraulic rod, an auxiliary elastic plate and a functional elastic plate. The gravel scraping and grouting module is composed of a functional elastic plate, a grout gravel limiting plate, a block falling window, scraping teeth, a grouting opening, a grout conveying pipe and a grout conveying header pipe. The device has a synchronous grouting effect, and cracks can be effectively blocked.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel vault risk removal device and method after blasting construction. Background technique [0002] Blasting construction is the main method of urban subway construction in hard rock strata and mountain tunnel excavation. It uses the mechanical action of explosive gas generated by explosives to break rocks and penetrate cracks; It is easy to produce the phenomenon of falling blocks, which will affect the safety of construction personnel; therefore, after the blasting construction and before the slag discharge operation, it is necessary to carry out risk removal treatment. At present, the commonly used method is to scrape the blasting surface with the excavator wheel to scrape off the surrounding rock fragments. Reduce the risk of falling blocks. For rock formations with solid surrounding rocks, wheel scraping can effectively reduce risks and have little impact o...
Claims
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IPC IPC(8): E21D11/10E21D9/00
CPCE21D11/105E21D9/00Y02E10/20
Inventor 侯顺平王剑君田志杰陈小羊李大勇吴靖江张永张驰陈浩曹汉生宋世阳李耀耀王婷婷
Owner 中建七局交通建设有限公司