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Accurate tracing compensation grouting construction method

A technology for tracking grouting and construction methods, which is applied in basic structure engineering, basic structure testing, construction, etc., and can solve problems such as a large number of grouting holes, failure to reflect settlement conditions, and slow progress of the project

Active Publication Date: 2019-12-03
CHINA RAILWAY NO 3 GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the existing technology is that the tracking grouting technology requires a full range of grouting reinforcement, resulting in a large number of grouting holes, slow project progress, and low grouting efficiency; moreover, each grouting method cannot reflect the actual settlement situation

Method used

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  • Accurate tracing compensation grouting construction method

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Such as Figure 1-3 As shown, a precise tracking grouting construction method provided by an embodiment of the present invention includes the following steps:

[0031] 101. A plurality of displacement meters 5 are arranged in the settlement area, and the plurality of displacement meters 5 are arranged side by side in the depth direction;

[0032] Specifically, the shield machine (or foundation pit) excavates in the first soil layer 2. After the excavation, the second soil layer 3 above or around the first soil layer 2 will settle due to stratum loss. The sum of the stratum areas where subsidence occurs is the subsidence area. Multiple displacement gauges 5 are arranged in the subsidence area, and multiple displacement gauges 5 are arrange...

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Abstract

The invention provides an accurate tracing compensation grouting construction method. The method comprises the following steps of laying a plurality of displacement meters in a settlement region, wherein the multiple displacement meters are arranged in parallel in the depth direction; acquiring detection data of each displacement meter; and if the distance between any two adjacent displacement meters changes, performing grouting construction on a corresponding position. According to the accurate tracing compensation grouting construction method, the actual settlement condition is acquired through the displacement meters arranged in an array, and grouting is performed according to the actual settlement condition, and thus, the grouting condition corresponds to the actual settlement condition, so that the grouting volume is reduced to the maximum extent, and the grouting construction period is shortened.

Description

technical field [0001] The invention relates to civil engineering technology, in particular to a precise tracking grouting construction method. Background technique [0002] In the past ten or twenty years, my country's infrastructure has been launched on a large scale. Among them, the construction of foundation pits and shield tunnels may cause settlement in the affected areas. For example, the shield construction of subway tunnels will cause the above and adjacent areas to Subsidence may occur in the area. In order to eliminate the negative impact caused by the settlement, the existing technology performs grouting operation in the subsidence area to eliminate the settlement through the grouting operation. [0003] Obviously, the subsidence degree of different positions in the subsidence area cannot be exactly the same. In order to deal with this difference, the tracking grouting technology is often used in the existing technology. The tracking grouting technology is a reinf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D15/02E02D33/00
CPCE02D15/02E02D33/00E02D2250/003
Inventor 罗百胜高磊孙伯乐姜山李震张春成刘小辉郭子奇任瑞文闫华宁马伸康刘一锋杨帅杨凯
Owner CHINA RAILWAY NO 3 GRP CO LTD
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