Underground engineering depth combination geological survey arrangement method

An underground engineering and geological survey technology, applied in underground chambers, earthwork drilling, wellbore lining, etc., can solve problems such as large geological risks and the inability of survey data to meet the needs of tunnel engineering construction, so as to reduce geological risks and reduce Geological risk, effect of reducing workload

Active Publication Date: 2020-08-07
CHINA RAILWAY LIUYUAN GRP CO LTD +1
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Problems solved by technology

In this way, conventional survey methods have invested a lot of money, but the survey data obtained still cannot m

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  • Underground engineering depth combination geological survey arrangement method
  • Underground engineering depth combination geological survey arrangement method
  • Underground engineering depth combination geological survey arrangement method

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[0025] In order to better understand the purpose, structure and function of the present invention, a kind of deep-shallow combination geological survey arrangement method for underground engineering of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 4 As shown, it is shown as a kind of underground engineering deep-shallow combination geological survey layout method of the present invention, which is suitable for the survey design and construction of underground engineering, especially suitable for mountain underground engineering geological survey construction. During the underground engineering survey and design process, the deep-shallow combination Methods to identify geological conditions and unfavorable geological bodies.

[0027] Further, the deep-shallow combined geological survey arrangement method for underground engineering of the present invention includes a comprehens...

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Abstract

The invention discloses an underground engineering depth combination geological survey arrangement method. The method comprises the steps that ground survey is carried out, and a geological backgroundreport of a survey area and a geological survey implementation scheme are formed; surface area geophysical prospecting is carried out, engineering geological partitioning is carried out, an engineering geological partition map of the survey area is generated, and a geophysical prospecting abnormal zone is delineated; conventional vertical drilling is carried out on an underground engineering shallow buried section, in-situ testing is carried out, a sample is reserved for testing by coring, and the engineering geological condition of the shallow buried section is analyzed and judged; underground engineering excavation support is pre-designed; the underground engineering shallow buried section is excavated, and in-hole advanced geophysical prospecting is carried out before excavation; long-distance horizontal drilling is carried out, in-situ water pressure testing is carried out, a sample is reserved for testing by coring, and the condition in front of underground engineering excavationis analyzed; and the condition is compared with advanced geophysical prospecting geological data, and support design parameters are dynamically adjusted. The geological condition of underground engineering is accurately surveyed, the method is suitable for underground cavities with different formation lithology, and the construction efficiency is high.

Description

technical field [0001] The invention relates to the technical field of survey, design and construction of tunnels and underground engineering, in particular to a geological survey layout method for deep and shallow underground engineering. Background technique [0002] In recent years, with the needs of my country's economic development, large-scale underground projects such as railways, highways, municipal tunnels, underground pipe galleries, water conservancy and hydropower tunnels, and underground storage have emerged in large numbers. Uncertainty has a great constraint on engineering construction. The existing geological exploration method is mainly based on conventional surface drilling. This exploration method is more effective for shallow buried sections, but for deep buried sections, it is obviously time-consuming, labor-intensive, and the drilling is often in the range of hundreds of meters. Only one hole is arranged inside, and the survey results are mostly "one-ho...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D11/00
CPCE21D9/00E21D9/003E21D11/00
Inventor 贺维国宋超业高波李兆龙杨鑫李约汉王星张伟费曼利吕书清
Owner CHINA RAILWAY LIUYUAN GRP CO LTD
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