Treatment method of high-pressure and large-flow inrush water in tunnel and underground engineering

Abstract

The invention discloses a tunnel and underground engineering high-pressure high-flow-rate sudden surging water control method. The method comprises the following steps that (1) a developing rule of a space with a water guide structure is detected and analyzed; (2) high-pressure high-flow-rate sudden surging water is subjected to flow division pressure relief; (3) high-pressure high-flow-rate sudden surging water points are sealed; (4) the high-pressure high-flow-rate sudden surging water is subjected to grouting control; (5) the control effect on the high-flow-rate sudden surging water is checked; (6) after the control on the high-flow-rate sudden surging water is completed, the digging is continuously carried out at a tunnel work area; (7) seeping water of dug local wall rock is controlled. The method provided by the invention has the advantages that the control standardization and the feasibility of the high-flow-rate sudden surging water can be improved, a set of grouting effect checking method and checking standards is provided, and the control effect is guaranteed; through a provided digging method after the sudden surging water control, the possibility of occurrence of secondary sudden surging water disasters is effectively reduced.

Description

technical field [0001] The invention relates to a treatment method for high-pressure and large-flow inrush water, which belongs to the field of tunnel and underground engineering. Background technique [0002] With the improvement of my country's transportation network and the development of hydropower resources in the west, the construction of tunnels and underground projects has shifted to the western region with complex topographic and geological conditions. my country's tunnels and underground projects have shown long tunnel lines, large buried depths, high ground stress, and high water pressure. specialty. Due to the complexity of geological structure conditions or improper excavation methods, casualties and property loss accidents caused by high-pressure water inrush occur from time to time. Under the action of high pressure, groundwater rushes to the tunnel and the space in the underground project with a large flow in a short period of time, which threatens the safety...

AI Technical Summary

Problems solved by technology

[0010] The present invention aims at problems such as empirical blindness in the treatment methods of high-pressure and large-flow inrush water in tunnels and underground engineering, inefficiency of existing technologies, and high risk of secondary disasters. Provide a set of high-pressure and large-flow inrush water treatment methods and implementation technologies for cracked and pipeline types

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