Device for rapidly testing water burst pressure of bedrock fracture in magmatic rock tunnel

Abstract

The invention discloses a device for rapidly testing the water burst pressure of a bedrock fracture in a magmatic rock tunnel. The device comprises a light hard material retaining ring and a pressure receiving converter, the pressure receiving converter is arranged at the bottom of the light hard material retaining ring, and a movable cavity is defined by the pressure receiving converter and an inner concave part. The pressure receiving converter, a wireless transmitter, a sensitive pressure conversion circular ring, a sensitive pressure conversion cylinder, a sensitive pressure sensing column, a sensing column cap, a sensitive compression sensing body, a flexible sensing body and a flexible sensing protective surface are arranged in the movable cavity to form a sensing testing device. The device can quickly test the water burst pressure of the bedrock fracture.

Description

technical field [0001] The invention relates to a rapid testing device for water gushing pressure in bedrock fissures in magmatic rock tunnels. Background technique [0002] At present, with the development of my country's "dual cycle" driving domestic demand, engineering construction is developing rapidly, and a large number of new highways and other line projects have emerged, followed by mountain-crossing tunnel projects springing up. However, due to the particularity of tunnel engineering, it has become a control engineering of the expressway. The reason is that many high-speed engineering tunnels are distributed in magmatic rock areas, and the regional geology is complex. One of the biggest obstacles to excavating tunnels under such geological conditions is the strong groundwater, which will seriously interfere with the construction and cause engineering problems. The construction period is delayed. [0003] In tunnel engineering, when water gushes from bedrock fissure...

AI Technical Summary

Problems solved by technology

The reason is that many high-speed engineering tunnels are distributed in magmatic rock areas, and the regional geology is complex. One of the biggest obstacles to excavating tunnels under such geological conditions is the strong groundwater, which will seriously interfere with the construction and cause engineering problems. Delay in construction period

[0003] In tunnel engineering, when water gushes from bedrock fissures in magmatic rock tunnels, due to insufficient understanding of the water volume and water pressure of the tunnel water gushing, subsequent design and construction plans cannot keep up, and the surrounding rock support scheme after water gushing has many uncertainties , there may be many unknown difficulties in the construction process

Most of the current domestic methods for testing the water gushing pressure of bedrock fissures are to deploy relevant testing equipment after the second lining of the tunnel is completed, which takes a long time and costs a lot, and the measured water pressure data is obviously lagging behind

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