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Advanced Radial Precipitation Channel System and Advanced Radial Precipitation Method

A precipitation channel and radial technology, which is applied in the advanced radial precipitation channel system and the advanced radial precipitation field, can solve the problem of effective precipitation in surrounding rocks that cannot be far away from the steps, so as to improve the characteristics of weak surrounding rocks, and the precipitation effect is obvious. Effects that are easy to implement

Active Publication Date: 2016-07-06
CHINA RAILWAY 19 BUREAU GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an advanced radial precipitation channel system and an advanced radial precipitation method to solve the problem that the existing tunnel precipitation method cannot effectively dewater the surrounding rock far away from the steps

Method used

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  • Advanced Radial Precipitation Channel System and Advanced Radial Precipitation Method
  • Advanced Radial Precipitation Channel System and Advanced Radial Precipitation Method

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Embodiment Construction

[0024] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] Such as figure 1 As shown, the advanced radial precipitation channel system provided by the present invention includes a horizontal precipitation channel 2, a connecting ring pipe 4, a vacuum filter pipe 3, a vacuum dewatering main pipe 6 and a vacuum dewatering pump 8, and the horizontal precipitation channel 2 is formed around the tunnel to be dug. In the rock 1, the connecting ring pipe 4 is arranged in the horizontal precipitation channel 2, and a plurality of vacuum water filter pipes 3 are connected to the connecting ring pipe 4 through joints 5 in a radial shape centered on the ring center of the connecting ring pipe 4, and the vacuum water filter pipes 3 is in...

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Abstract

The invention relates to the technical field of tunnel construction, in particular to an advanced radial water lowering channel system and an advanced radial water lowering method. The advanced radial water lowering channel system comprises a horizontal water lowering channel, a communication ring pipe, a vacuum filter pipe, an evacuated water lowering main pipe and a vacuum water lowering pump, the horizontal water lowering channel is arranged in a tunnel surrounding rock to be excavated, the vacuum filter pipe is inserted into the tunnel surrounding rock outside the horizontal water lowering channel, water in the tunnel surrounding rock enters the vacuum filter pipe under the action of the vacuum water lowering pump, enters the communication ring pipe through a joint, enters the evacuated water lowering main pipe through a communication short pipe and finally is drained through the vacuum water lowering pump, water lowering effects are obvious, field implementation is easy, characteristics of weak surrounding rocks are improved, saturated water level is reduced below an excavation line, and excavation of a subsequent tunnel is ensured.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to an advanced radial precipitation channel system and an advanced radial precipitation method. Background technique [0002] At present, under the geological conditions where the surrounding rock of the tunnel is weak and the saturated water level is higher than the tunnel vault, the surrounding rock will soften and collapse due to the action of water when the tunnel is excavated, making the tunnel construction impossible and posing huge safety hazards during the construction process. In this case, precipitation treatment must be carried out first, and then tunnel excavation can be carried out. Most of the existing dewatering methods use light well point precipitation in the tunnel. This dewatering method is to set up a light dewatering well in the excavated tunnel steps, and guide the water in the unexcavated surrounding rock to the light dewatering well for dewatering...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/10
CPCE02D19/10
Inventor 毕德灵李绍杰王胜国胡刚高帅于博龚华勇
Owner CHINA RAILWAY 19 BUREAU GRP CO LTD
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