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Apparatus for detecting tunnel continuous-settlement soil, and method thereof

A technology for tunnels and soils, used in surveying devices, surveying and navigation, height/horizontal measurements, etc.

Inactive Publication Date: 2015-04-08
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no experimental setup capable of testing the vibratory fluidization of soil

Method used

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  • Apparatus for detecting tunnel continuous-settlement soil, and method thereof
  • Apparatus for detecting tunnel continuous-settlement soil, and method thereof

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Experimental program
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Embodiment Construction

[0031] The accompanying drawings non-limitingly disclose the schematic structural diagrams of the preferred embodiments of the present invention; the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, a device for detecting continuous settlement of a tunnel is composed of a pressure vessel, an upper cover 2 of the vessel, an air bag 8, a pressure plate 7, a vibrating rod 4, a plastic bag 6, and other supporting parts. Such as figure 2 As shown, the vibrating rod 4 is made of a metal sealed box, an acceleration sensor 11, an eccentric motor 12 and corresponding wires. A sealing ring is provided on the upper cover 2 of the pressure vessel.

[0033] The steps for testing with the testing device are as follows:

[0034] a According to the vibration frequency generated when the subway passes through the tunnel, set different weights in the eccentric motor 12 so that the vibrat...

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PUM

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Abstract

The invention provides an apparatus for detecting tunnel continuous-settlement soil. The apparatus comprises a pressure container, the pressure container is covered with a top cover used for sealing the pressure container, the pressure container is divided into an upper portion and a lower portion by a built-in bearing plate, soil to be detected is contained in a portion above the bearing plate, a vibrating rod is arranged in the soil to be detected, an airbag is contained in a portion below the bearing plate, and the portion below the bearing plate is connected with a constant pressure device. The invention also provides a method for detecting the tunnel continuous-settlement soil. The apparatus can detect whether the continuous settlement of the tunnel appears or not.

Description

Technical field [0001] The invention relates to the technical fields of transportation and civil engineering, in particular to a device and method for detecting continuous settlement of soil in a tunnel. Background technique [0002] The mechanical behavior of underground soft soil causes frequent occurrence of disasters such as continuous subsidence of subway tunnels. Both Shanghai and Nanjing are cities with a large number of soft soils. Monitoring data shows that the settlement and deformation of the Shanghai subway tunnel has been continuously developing since its completion. The cumulative settlement has exceeded the standards of the "Metro Tunnel Protection Regulations", and there has been no recent convergence and stability. the trend of. During the construction period of Nanjing Metro Line 1, it was jokingly called the “tofu brain built subway”. Years of monitoring also showed that the settlement problem of Nanjing Metro No. 1 and No. 2 tunnels was also very prominent. N...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C5/00
Inventor 殷德顺李强张伟
Owner HOHAI UNIV