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Underground structure quasi-static test device and method

An underground structure and test device technology, which is applied in the testing of machines/structural components, measuring devices, and testing of mechanical components, can solve problems such as the lack of quasi-static test devices, and achieve the expansion of model test methods and low test costs , the effect of simple structure

Active Publication Date: 2017-09-05
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

However, there is no quasi-static test device and test method for underground structures at present, which is an urgent problem to be solved in the current earthquake research of underground structures

Method used

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  • Underground structure quasi-static test device and method
  • Underground structure quasi-static test device and method

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Embodiment Construction

[0026] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and examples.

[0027] Such as Figure 1-4 Shown: a kind of quasi-static test device of underground structure, comprises counterforce device, model box 17, boundary restraint device, actuator and underground structure model, it is characterized in that:

[0028] The reaction force device includes a reaction force wall 2 and a reaction force steel frame 3, and the reaction force steel frame 3 is assembled from steel columns 4, steel beams 5 and steel plates, and is anchored to the ground 1;

[0029] The model box 17 is located between the reaction force wall 2 and the reaction force steel frame 3, and the model box 17 is spliced ​​by left and right vertical stiffening steel plates 6, front and rear vertical stiffening steel plates 7 and bottom steel plates 8; the model box The gap between the stiffened steel plates around 17 is conne...

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Abstract

The invention discloses an underground structure quasi-static test device and method. The device includes a counterforce device, a model box, a boundary constraint device, an actuator and an underground structure model. The counterforce device is composed of a counterforce wall and a steel frame. The model box is located between the counterforce wall and the steel frame and is spliced by four vertical reinforced steel plates and a bottom steel plate. The model box adopts flexible connection for the gaps among the reinforced steel plates on the periphery. The tops of the left and right reinforced steel plates are pulled towards each other by roller connecting members, and the bottoms are hinged with the bottom steel plate with rollers. The left side of the model box is provided with the actuator at the top and is provided with a hydraulic pressure stabilizer at the bottom. The model box is provided internally with an underground structure member and is filled with a similar material to surrounding rocks. The mode box is provided with rubber spacers on the two sides. The rubber spacers are connected with the steel plates through clamping grooves. The rubber spacers can be varied in the type and detached partially to simulate different constraint conditions. The underground structure quasi-static test device and method of the invention can achieve quasi-static loading of an underground structure and simulate seismic response features of the underground structure, and have the advantages of being economical in test, simple to operate, high in reliability and so forth.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to a quasi-static test device and method for studying the seismic performance of underground structures. Background technique [0002] With the frequent occurrence of global earthquake disasters and the fact that underground structures have been seriously damaged in previous major earthquakes, the research on seismic damage and seismic performance of underground structures has become one of the hot research directions in the field of 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 underground structures because of the controllable conditions. [0003] At present, indoor tests mainly include artificial seismic source test and shaking table simulation test. Due to high co...

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Application Information

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IPC IPC(8): G01M13/00G01N3/02
CPCG01M13/00G01N3/02
Inventor 丁祖德张博李晓琴李夕松付江杜婷
Owner KUNMING UNIV OF SCI & TECH
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