A Construction Method of Shallow Buried Bias Asymmetric Arch Protection

A construction method and asymmetrical technology, applied in earthwork drilling, shaft equipment, wellbore lining, etc., can solve problems such as inability to reduce the lateral pressure of mountain bias pressure, construction method not suitable for bias pressure areas, and tunnel lining encroaching on clearance, etc. Achieve less risk, reasonable structure and size design, and good anti-bias effect
CN107060837BActive Publication Date: 2019-08-13CHINA RAILWAY 16TH BUREAU GRP 5TH ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAY 16TH BUREAU GRP 5TH ENG
Publication Date
2019-08-13

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Abstract

The invention discloses a construction method for a shallow-buried partial-pressed non-symmetrical support arch. The construction method comprises the steps of water-intercepting gutter constructing, non-symmetrical support arch foundation constructing, non-symmetrical support arch constructing and cave-top backfilling. According to the construction method for the shallow-buried partial-pressed non-symmetrical support arch, the construction method is simple, the construction steps are closely linked, and the design of arranged positions, structures and sizes of the tunnel support arch and pile foundations are reasonable; the construction method has the advantages that construction is convenient and fast; and the effect of partial-pressure resistance is good, risks brought by shallow-depth and partial pressure of a tunnel to safety of railway operation can be reduced effectively.
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Description

technical field

[0001] The invention relates to the technical field of tunnel engineering shallow burial excavation, in particular to a shallow burial bias pressure asymmetric arch protection construction method. Background technique

[0002] At present, shallow buried excavation of tunnels (shallow buried depth) exists in the form of open cut and concealed excavation, but the construction method is not suitable for biased areas. This product cannot reduce the lateral pressure caused by the mountain bias. As a result, cracking of the lining is prone to occur, and the overall bias of the lining will cause the tunnel lining to encroach on the clearance during operation. Contents of the invention

[0003] Aiming at the above-mentioned technical problems in the related art, the present invention proposes a shallow-buried bias-voltage asymmetric arch protection construction method, which can overcome the above-mentioned deficiencies in the prior art.

[0004] For realizing abo...

Claims

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