Muck improving and slip casting method for sandy gravel stratum tunnel shield construction

A technology of tunnel shielding and construction methods, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., and can solve problems such as poor construction results in sandy and pebble-rich strata, affecting construction progress and safety, etc.

Pending Publication Date: 2020-06-30
NO 1 ENG CO LTD OF CHINA RAILWAY 22ND CONSTR BUREAU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the prior art, the construction effect in the stratum rich in sand and pebbles of the pre

Method used

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  • Muck improving and slip casting method for sandy gravel stratum tunnel shield construction
  • Muck improving and slip casting method for sandy gravel stratum tunnel shield construction
  • Muck improving and slip casting method for sandy gravel stratum tunnel shield construction

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Embodiment Construction

[0078] As shown in the figure, a shield tunnel construction method in sand and pebble strata of the present invention, the numbers and structure names involved in the embodiment figure are hereinafter respectively: 1-pipe shed, 2-hole, 3-steel pipe ring, 4-work Platform, 5-tunnel, 6-connecting sleeve steel pipe, 7-sleeve valve pipe, 8-starting bracket, 9-reaction frame, 10-beam, 11-column, 12-diagonal support, 13-starting base , 14-negative ring segment, 15-opening door extended steel ring sealing structure, 1510-enclosure structure, 151-inner wall, 152-steel ring plate, 153-bolt, 154-ring seal rubber plate, 155-pressure Tight ring plate, 156-folding plate, 1561-piece 1, 1562-piece 2, 157-door extension steel ring, 14-segment, 16-triangular support frame, 17-I-beam, 18-wooden wedge, 19-Shield machine.

[0079] The construction sections in this embodiment are Sanse Road, Zhonghe Station, shield tunneling section from Jinshi Road Station to Sanse Road Station, shield tunneling ...

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Abstract

The invention discloses a sandy gravel stratum tunnel shield construction method which comprises the following steps that an end portal is reinforced, and a starting bracket is installed; a reaction frame supporting system is mounted; and shield muck, portal extension steel ring and sealing installation is achieved, shield excavation parameter optimization is carried out, and measurement, adjustment and the like are achieved. Shield construction is ensured to be safe, smooth and rapid, and the ideal working condition during shield excavation into a sand-gravel stratum is achieved.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a tunnel shield construction method in sand and pebble strata. Background technique [0002] During tunnel shield construction, since the water-rich and sandy strata will affect the progress and safety of the construction, the improvement of tunneling parameters, steps, and structure optimization are the most important and indispensable technical means to ensure the safety, smooth and rapid construction of shield tunneling. . In the prior art, the construction effect in the stratum rich in sand and pebbles of the present invention is not good, which greatly affects the progress and safety of the construction. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a shield tunnel construction method in sand and pebble strata, which overcomes the above-mentioned problems of construction progress, quality and safety in the p...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D9/087E21D11/08E21D11/10C04B28/00C04B111/70
CPCC04B28/00C04B2111/70C04B2201/50E21D9/003E21D9/0607E21D9/087E21D11/08E21D11/10C04B18/08C04B14/104C04B14/06
Inventor 姚义田作华王天武肖祥廖友根蒋华周祖斌朱斌刘浪王丙吉唐毅雨彭毅郭旭光
Owner NO 1 ENG CO LTD OF CHINA RAILWAY 22ND CONSTR BUREAU
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