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Constructing method for monitoring of deep horizontal displacement of deep foundation pit at subway station

A technology of horizontal displacement and deep foundation pit, which is used in basic structure engineering, basic structure testing, construction, etc., can solve the problem of inclinometer pipe not being used normally, achieve protection from damage, high cost, improve accuracy and effect of continuity

Active Publication Date: 2018-11-23
CHINA RAILWAY SIXTH GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a construction method for monitoring the deep horizontal displacement of the deep foundation pit of a subway station, aiming at the defects in the existing method of laying the inclinometer tubes, which easily lead to the failure of the normal use of the inclinometer tubes

Method used

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  • Constructing method for monitoring of deep horizontal displacement of deep foundation pit at subway station
  • Constructing method for monitoring of deep horizontal displacement of deep foundation pit at subway station

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Embodiment Construction

[0026] The construction method for monitoring the deep horizontal displacement of the deep foundation pit of the subway station includes the following steps:

[0027] (1) Prefabricated deep foundation pit enclosure structure reinforcement cage;

[0028] (2) Before connecting, check whether each segmented inclinometer pipe is straight, whether both ends are flat, and whether the cross guide groove in the pipe is clean and unobstructed;

[0029] (3) Connection between the bottom cover and the segmented inclinometer tube: insert the bottom end of the lowermost segmented inclinometer tube into the bottom cover, use adhesive glue to seal the bottom cover and the segmented inclinometer tube firmly, and then use The electric drill is equipped with 4 rivet holes symmetrically for riveting. Each rivet hole should be equidistant from the adjacent guide groove. Prevent grout from seeping into the inclinometer;

[0030] (4) Connect each segmented inclinometer tube through the connecting...

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Abstract

The invention relates to the monitoring of the deep horizontal displacement of a deep foundation pit enclosure structure, in particular to a constructing method for monitoring of deep horizontal displacement of a deep foundation pit at a subway station. The situation that an oblique measuring pipe cannot be used normally due to the defects of an existing arraying method of the oblique measuring pipe is solved. The problem of the low pass rate of the oblique measuring pipe is solved, the smooth running of the daily monitoring is ensured, because the oblique measuring pipe cannot be used normally due to the defects of an existing arraying method of the oblique measuring pipe, re-perforating and arraying have to be conducted on the outer side of the enclose structure, the cost is high, the monitoring data is unstable due to the fact that the backfill is not dense, the affection by the surrounding environmental factors is high, the method not only saves the cost, and the reliability of themonitoring data is improved.

Description

technical field [0001] The invention relates to the monitoring of the deep horizontal displacement of the deep foundation pit enclosure structure, in particular to a construction method for monitoring the deep horizontal displacement of the deep foundation pit of a subway station. Background technique [0002] In the construction of urban subway stations, it is inevitable to excavate deep foundation pits. Due to the complex urban conditions and many buildings, it is not suitable to carry out direct slope excavation. It is necessary to carry out the construction of the deep foundation pit enclosure structure first, and then Carry out earth excavation work. In order to ensure construction safety, it is necessary to monitor and measure the deep horizontal displacement of the enclosure structure, the horizontal displacement of the top of the wall, the vertical displacement, the supporting axial force, the settlement of the ground surface and pipelines, etc. during the excavation...

Claims

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Application Information

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IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 刘俐孙新峰杨向军吕辉谷金明杨启超樊经宇赵秀平
Owner CHINA RAILWAY SIXTH GROUP
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