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Shield segment testing machine

A shield segment and testing machine technology is applied in the construction field to achieve the effects of good stress characteristics, simplified layout, and optimized test loading control system

Inactive Publication Date: 2014-02-12
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a shield segment testing machine which solves the problems in the existing shield segment test

Method used

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Examples

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Embodiment Construction

[0048] The following examples are further detailed descriptions of the present invention.

[0049] like figure 1 As shown: the shield segment testing machine of the present invention is composed of a self-balancing reaction force core tube 1, an oil cylinder force applying device 2, an axial force loading device 4, a loading beam 5 and a base 6; the base 6 is circular and located on the shield The bottom of the segment testing machine; the balanced reaction force core tube 1 is located at the center of the base 6; the shield segment ring 7 is located above the edge of the base 6; the loading beam 5 is a cubic structure, standing vertically on the base 6 and the shield tube The outer side of the segment ring 7; the two ends of the cylinder force applying device 2 are respectively connected to the self-balancing reaction force core tube 1 and the loading beam 5; the axial force loading device 4 is located on the shield segment ring 7; the self-balancing reaction force core tube...

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Abstract

The invention discloses a shield segment testing machine. The shield segment testing machine is characterized by being composed of a self-balancing counter-force core tube, a cylinder force application device, an axial force loading device, a loading beam and a base, the base is located at the bottommost, the self-balancing counter-force core tube is located in the center of the base, a shield segment ring is located at the edge of the base, the loading beam stands vertically on the outer side of the shield segment ring, the two ends of the cylinder force application device are connected with the self-balancing counter-force core tube and the loading beam respectively, and the axial force loading device is located on the shield segment ring. The self-balancing counter-force core tube adopted on the shield segment testing machine is simple and economical, and can also achieve unbalanced loading on shield segments. Twelve-point loading is adopted in the radial direction and the axial direction, multi-point loading can be achieved, and the stress characteristic of a lining structure under the normal use state can be well simulated.

Description

technical field [0001] The invention relates to the technical field of construction, in particular to a shield segment testing machine. Background technique [0002] At present, the test methods of domestic shield segment are mainly model test, local test and simplified test. Due to the roughness of the model structure and the discreteness of the model material, the size effect of the local test and many neglected factors, it is difficult to truly realize the simulation of the detailed characteristics of the segment structure and the mechanical properties of the structural bearing capacity, instability, and failure characteristics. . [0003] For the whole-ring segment lining structure, some prototype tests have been carried out at home and abroad. At present, the loading methods for the whole-ring prototype segment lining structure can be summarized into two types: the first method is to dig deep pits on the ground, and the segment structure It is placed horizontally in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
Inventor 白晨光马程昊马庆松秦会来油新华耿冬青宋福渊许国光张清林杨春英张伟郭恒胡贺祥
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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