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Lining member quasi-static test apparatus and lining member quasi-static test method

A technology of test device and test method, which is applied in the direction of measuring device, test material strength by applying repetitive force/pulsation force, instrument, etc., can solve the problems that there is no quasi-static test device for lining components, and achieve the expansion of model test method, Easy to operate, clear force effect

Active Publication Date: 2017-10-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no quasi-static test device and test method for lining components at present, which is an urgent problem to be solved in the current seismic research of tunnels

Method used

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  • Lining member quasi-static test apparatus and lining member quasi-static test method
  • Lining member quasi-static test apparatus and lining member quasi-static test method
  • Lining member quasi-static test apparatus and lining member quasi-static test method

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Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: as Figure 1-3 Shown: a pseudo-static test device for lining components, including a reaction device, a loading device, a lining component, and a surrounding rock simulation system; a pseudo-static test device for a lining component, including a reaction device, a loading device, a lining component, Surrounding rock simulation system;

[0032] The reaction force device includes a reaction force wall 1 and a reaction force steel frame 2, the reaction force steel frame 2 is composed of a crossbeam and a vertical pillar, and the crossbeam is fixed between the reaction force wall 1 and the vertical pillar;

[0033] Described static force loading device comprises sliding bearing 3 and vertical jack 4, and described sliding bearing 3 is positioned at reaction force steel frame 2 beam below and is fixed on the beam by slide rail 19, and described vertical jack 4 upper end and sliding The supports 3 are connected, and the lower part is closely attached to the lin...

Embodiment 2

[0036] Example 2: The reaction force steel frame is welded by HW300×300 steel, the steel column is 3m high, the steel beam is 3m long, the reaction force wall 1 and the reaction force steel frame 2 are connected by M20 anchor bolts, and the steel column is M20 The bolts are fixed on the ground 18 to form a counter force device;

[0037] For the realization of the static loading device, the sliding support 3 is located under the upper crossbeam of the reaction force steel frame 2 and is fixed on the crossbeam through the slide rail 19, and an embedded steel ball is placed between the sliding support 3 and the crossbeam to realize the support of the support. move. It is beneficial to apply eccentric loads with different eccentric distances; the dynamic loading device adopts the MTS actuator 5 fixed on the reaction wall 1 to realize the application of reciprocating load, and then connects the horizontal connecting rod 6 and the bolt 7, and the bolt 7 clamps the lining member The...

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Abstract

The present invention discloses a lining member quasi-static test apparatus and a lining member quasi-static test method. The lining member quasi-static test apparatus comprises a reaction force device, a loading device, a lining member and a surrounding rock simulation system, wherein the reaction force device comprises a reaction force wall and a reaction force steel frame, a sliding support seat is arranged above a vertical jack, the lower portion of the vertical jack is connected to the lining member so as to apply a static load and simulate the eccentric compression state of the lining member, a horizontal actuator is connected to the top portion of the lining member so as to apply a dynamic load and simulate the action of the repeated load applied on the lining member, a spring is arranged on the right side of the lining member so as to simulate the constraint action of the surrounding rock, and by changing the type of the spring and disassembling the local spring, the different levels of the surrounding rock, the surrounding rock softening, surrounding rock voiding and other surrounding rock conditions can be simulated. According to the present invention, with the apparatus and the method, the dynamic and static coupling effect of the lining member can be simulated, the lining member back cavity and other defects can be simulated, and the advantages of test economy, simple operation, strong reliability and the like can be provided.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to a pseudo-static test device and method for studying the anti-seismic performance of lining structures. Background technique [0002] With the frequent occurrence of earthquake disasters in the world and the reality that tunnels have been severely damaged in previous major earthquakes, the research on seismic damage and seismic performance of tunnels has become one of the hot research directions in the field of tunnel and underground engineering. At present, the main means of earthquake research are theoretical calculation, in-situ observation and indoor test. Among them, indoor test is an important way to determine the seismic performance and earthquake damage mechanism of tunnels because of the controllable conditions. [0003] At present, indoor tests mainly include artificial seismic source test and shaking table simulation test. Due to high cost and small excitation f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/32
CPCG01N3/32G01N2203/0075G01N2203/0066G01N2203/0005
Inventor 丁祖德张博李晓琴张蕾任志华李夕松付江杜婷
Owner KUNMING UNIV OF SCI & TECH
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