Vertical loading testing device for integral ring tunnel structure

A tunnel structure, vertical loading technology, applied in the testing, measuring devices, instruments, etc. of machines/structural components, which can solve the problem of the incompetence of the loading device
CN106501014AInactive Publication Date: 2017-03-15TONGJI UNIV
11 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2017-03-15
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention relates to a vertical loading testing device for integral ring tunnel structure, comprising a reaction frame composed of a column and a cross beam; a spring support group is arranged on the base of the reaction frame; an integral ring tunnel structure is placed on the spring support group; the lower part of the cross beam is provided with a jack; the upper end of the jack is fixed on the cross beam and the lower end abuts against the loading point of the integral ring tunnel structure; the left side and the right side of the integral ring tunnel structure are provided with a lateral loading component each. When a test is performed, the jack and the spring support group act together to exert vertical force for vertical loading and the lateral loading components exert lateral force for lateral loading. Compared with the prior art, the invention adopts a vertical loading method to perform a test on an integral ring tunnel structure, fully takes into account of the gravity effect of the structure, and places the integral ring tunnel structure on the spring support group to simulate the boundary conditions of an elastic foundation so that the testing results truly reflect the force exerted state of a tunnel structure in a soil layer.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a test device, in particular to a vertical loading test device for a full-ring tunnel structure. Background technique

[0002] In the construction and construction of tunnels, special rock and soil foundations such as soft clay foundations, expansive soil foundations, and collapsible loess foundations are often encountered. It is necessary to carry out research on the bearing deformation characteristics of the foundation, and it is necessary to perform mechanical performance tests on the structural equipment in the tunnel. Ensure the safety of tunnel construction. The traditional tunnel structure test adopts the horizontal loading method, and loads through the symmetrical tension self-balancing system to test the mechanical properties of the tunnel structure. However, this method cannot consider the gravity effect of the structure, nor does it consider the impact of soil compression deformation. The distortion of the boundary ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More