Tunnel and underground engineering self-stabilization construction method

A technology for underground engineering and tunnels, applied in tunnels, tunnel linings, underground chambers, etc., can solve the problem of high construction costs, and achieve the effects of improving service life, prolonging self-stabilization time, and reducing consumption.

Active Publication Date: 2017-09-15
王胜利
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  • Tunnel and underground engineering self-stabilization construction method
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[0120] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0121] Such as figure 1 As shown, a kind of tunnel and underground engineering self-stabilizing construction method provided by the invention comprises the following steps:

[0122] Step a, calculating surrounding rock pressure;

[0123] Step b, carrying out surrounding rock stability analysis according to surrounding rock pressure;

[0124] Step c, underground engineering excavation and lining:

[0125] c1. Excavate pilot pits I on both sides, and build optimized composite arch walls symmetrically;

[0126] c2. Excavate circular pilot pit II, erect movable steel arches, build arch lining or f...

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Abstract

The invention discloses a tunnel and underground engineering self-stabilization construction method. The tunnel and underground engineering self-stabilization construction method is a novel method for achieving safe, high-quality, environment-friendly, rapid and saving construction of a tunnel by sufficiently utilizing the short self-stabilization time of a surrounding rock to develop the rapid and effective load-bearing effect of a tunnel main structure. Through the measures of exploring mechanisms and elaborately scheming, little-excavating and rapid-brick-building and space-time matching, process-rationalizing and stress-optimizing, based-on-internal-cause and more-with-less and the like, the internal cause controlling factors that the surrounding rock pressure is calculated, the surrounding rock stabilization time is analyzed, an appropriate excavation space is designed, and effective lining is conducted with time limit are achieved, so that the purpose of self-stabilization construction is achieved, therefore, deep-buried and underground excavation engineering does not need advanced supporting and primary supporting, and the unnecessary cost is reduced; shallow-buried and underground excavation engineering does not need pipe-advancing and strict-grouting; super-shallow-buried cover-excavation engineering does not need the external cause auxiliary processes of advanced piling or constructing of an underground continuous-wall temporary vertical supporting system and the like; and a new leap of safety, high quality, environmental protection, rapidness and saving of the tunnel is achieved.

Description

technical field [0001] The invention belongs to the technical field of tunnel and underground engineering design and construction, and in particular relates to a self-stabilizing construction method for tunnels and underground engineering. Background technique [0002] At present, new Austrian method composite lining or shield method segment lining are generally used to construct tunnels at home and abroad. [0003] The new Austrian method uses the method of strengthening the surrounding rock and changing the external factors to prolong the stability time of the surrounding rock and meet the needs of tunnel construction. Therefore, it is necessary to set up auxiliary measures such as anchor rods, pipe sheds or steel frames. The initial support of sprayed concrete can not effectively bear the force together due to the separation of the intermediate waterproof and drainage layers. Therefore, it can only play the role of auxiliary measures to ensure construction safety. These ...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D11/10
CPCE21D9/00E21D11/10
Inventor 王胜利王卉王旭军王龑明敖运安
Owner 王胜利
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