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- Title
山岭隧道高压富水段超前注浆堵水实施效果试验研究.
- Authors
周鹏飞
- Abstract
In the process of tunnel construction in the mountainous area with high pressure water rich zone, the phenomenon of high pressure water gushing often appears in the tunnel section. In order to solve the problem of large amount of water gushing in the broken zone with high pressure water rich zone, the groundwater seepage and water plugging effect of different grouting materials in the grouting water plugging were studied. In order to solve the construction problem of the high-pressure water-rich section in the inclined well working area of a tunnel, the method of “grouting emission reduction and drainage pressure reduction” is proposed according to the demonstration of the construction scheme of the high-pressure water-rich section by experts, and its types and corresponding test procedures are further divided for the advance grouting water plugging test. After the analysis and treatment of the test results, the water plugging method and grouting material of advance grouting are determined, and it is proved that under the principle of grouting emission reduction, drainage and pressure re‐ duction”, the full section advance grouting method is feasible and effective to solve the problem of water-rich tunnel with water pressure greater than 6.3 MPa.
- Publication
Guangdong Architecture Civil Engineering, 2021, Vol 28, Issue 10, p61
- ISSN
1671-4563
- Publication type
Article
- DOI
10.19731/j.gdtmyjz.2021.10.015