Horizontal geological survey arrangement method for deep buried underground cave depot

Abstract

The invention discloses a horizontal geological survey arrangement method for a deep buried underground cave depot. The method comprises the following steps: 1, performing ground survey, forming a measurement area geological background report and a geological survey implementation scheme; 2, carrying out surface area geophysical prospecting, carrying out engineering geological area division, generating a measuring area project geology partition map, and delineating a geophysical prospecting abnormal band; 3, carrying out long-distance horizontal drilling, taking a core and reserving a sample for indoor geotechnical test, and analyzing the front situation of excavation of the cave depot; 4, predesigning a cave depot excavation support; 5, carrying out the tunnel excavation of the cave depot, and carrying out intra-hole advanced geophysical prospecting before excavation; 6, carrying out deep blast hole detection, and judging front geological conditions; 7, comparing advance geophysical prospecting information, and dynamically adjusting support design parameters in time; and 8, summarizing detection results, constructing an underground cavern three-dimensional geological model, carrying out cave depot support design and timely support modification according to the detected geological conditions so as to guarantee the tunnel excavation safety. According to the method, the geological condition of the underground cave depot can be accurately surveyed, and the construction time is short.

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 method for horizontal geological survey and arrangement of deep underground caverns. Background technique [0002] In recent years, with the needs of my country's economic development, large-scale railways, highways, municipal tunnels, underground pipe galleries, water conservancy and hydropower tunnels, underground storage and other deep-buried super-long-span underground projects have appeared in large numbers, and their geological conditions are extremely complex. The uncertainty of unfavorable engineering geological problems has great constraints on engineering construction. The existing geological prospecting method is mainly based on conventional surface ultra-deep drilling, which is time-consuming, labor-intensive, and usually only one hole is arranged within a range of hundreds of meters, and the survey resul...

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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 meet the needs of tunnel engineering construction, which brings great geological risks to the construction process.

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