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Grouting integrated controlling method for underground engineering top weakly cemented rock mass permeation damaged region

An underground engineering and comprehensive control technology, which is applied in underground chambers, earthwork drilling, wellbore lining, etc., can solve problems such as unsatisfactory governance effects and secondary disasters, so as to avoid secondary geological disasters, improve governance quality, shorten The effect of treatment duration

Active Publication Date: 2017-10-24
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a weakly cemented rock mass seepage damage zone at the top of an underground project in order to overcome the above-mentioned existing problems in the treatment of weakly cemented rock mass seepage damage geological disasters such as unsatisfactory treatment effect and easy to cause secondary disasters. Grouting comprehensive control method

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  • Grouting integrated controlling method for underground engineering top weakly cemented rock mass permeation damaged region
  • Grouting integrated controlling method for underground engineering top weakly cemented rock mass permeation damaged region
  • Grouting integrated controlling method for underground engineering top weakly cemented rock mass permeation damaged region

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[0054] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0055] The structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification for the understanding and reading of those who are familiar with this technology, and are not used to limit the conditions for the implementation of the present invention , so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. The technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to lim...

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Abstract

The invention discloses a grouting integrated controlling method for an underground engineering top weakly cemented rock mass permeation damage region. The grouting integrated controlling method for the underground engineering top weakly cemented rock mass permeation damage region comprises the following steps that means of geological analysis and geophysical exploration are utilized jointly, and hydrogeological conditions of a treated region are ascertained; supporting reinforcement is conducted on a permeation instable damaged section and an affected region; treatment schemes of water releasing and pressure reducing layered grouting are designed; water releasing and pressure reducing drilling construction and layered grouting engineering are implemented and regulated dynamically; water releasing and pressure reducing holes are blocked in flowing water with high pressure and large volume; and monitoring for surrounding rock deformation is enhanced. After the grouting integrated controlling method for the underground engineering top weakly cemented rock mass permeation damage region is adopted for construction, weakly cemented rock mass reinforcement and blocking of water surge with high pressure and large volume are implemented in different levels and stages, the different problems that treatment engineering is long in period and secondary geological disasters are prone to trigger are effectively solved, grouting efficiency is improved, and good social and economic benefits are created.

Description

technical field [0001] The invention relates to a tunnel and underground engineering geological disaster control technology, in particular to a drainage and pressure reduction-layered grouting comprehensive treatment method for seepage damage areas of weakly cemented rock mass at the top of underground engineering such as tunnel roadways. Background technique [0002] The construction of underground projects such as tunnels, hydropower stations, mine roadways, etc. will inevitably pass through unfavorable geological bodies such as fault fracture zones and filled karst caves. Long-term water gushing often occurs after being exposed. The reason is that the excavation disturbance leads to the formation of plastic failure areas and free surfaces in the surrounding rock, and the penetration of groundwater causes fine particles such as clay to be carried out. At the same time, the mechanical properties of the surrounding rock gradually deteriorate, the roof subsides, and the side...

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Application Information

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IPC IPC(8): E21D11/10E21D11/38E21F16/02
CPCE21D11/10E21D11/38E21F16/02
Inventor 张伟杰王喆魏久传石守桥尹会永李孝朋
Owner SHANDONG UNIV OF SCI & TECH
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