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Mechanical dynamic tester for flexible impervious body joint structure and testing method

A technology of dynamic test and anti-seepage body, which is applied in the direction of applying stable tension/pressure to test the strength of materials, and can solve the problems of easy damage of joint structure and lack of analysis methods and methods

Active Publication Date: 2015-02-25
HOHAI UNIV
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Problems solved by technology

[0004] The present invention proposes a mechanical dynamic tester and test method for the joints of flexible anti-seepage body, aiming at that the joint structure around the high-mask rockfill dam is easily damaged but lacks analysis means and methods

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  • Mechanical dynamic tester for flexible impervious body joint structure and testing method

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Embodiment Construction

[0029] A mechanical dynamic tester for the joint structure of a flexible anti-seepage body, including pressure chambers 7 and 1, inlet and outlet water (air) pipes 9, 13, 16 and 20 valves 10, 14, 17 and 21 systems, mechanical power 3 and samples Install platform 5 system, displacement 18 and pressure measurement 11 and 15 feedback control system 23 and monitoring system 19, it is characterized in that above-mentioned pressure chamber 7 and 1 and inlet and outlet water (gas) pipe 9,13,16 and 20 valves 10,14 , 17 and 21 systems, mechanical power 3 and sample installation platform 5 systems, displacement 18 and pressure measurement 11 and 15 feedback control systems 6 and 23 The three systems form an overall system of self-control of the test process through sensors, chips and software; The pressure chamber 7 and 1 and the inlet and outlet water (gas) pipes 9, 13, 16 and 20 valves 10, 14, 17 and 21 system are composed of upper 7 and lower 1 pressure vessels, inlet and outlet water...

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Abstract

The invention discloses a mechanical dynamic tester for a flexible impervious joint structure and a testing method. aiming at the problems that after a face film or a panel impervious structure of a high rock-fill dam runs for a long time with water storage, the part anchored by a conventional impervious film at the periphery of the upstream face of a dam body under certain depth or the flexible water-stopping structure at the peripheral joint of the panel easily has damage phenomenon. The mechanical dynamic tester and the testing method can simulate the deformation damage of the face film and the panel impervious structure under different upper and lower contact materials on site. The mechanical dynamic tester group of the flexible impervious joint structure mainly comprises a high-pressure container (pressure chamber), a water charge and discharge (gas) pipe valve system, a mechanical dynamic and test specimen installation platform system, and a displacement and pressure measurement feedback control system and a monitoring system. The damage mechanism at the anchoring joint part at the periphery of an impervious body of a high face membrane rock-fill dam at a certain water depth can be disclosed by the test.

Description

technical field [0001] The invention relates to a mechanical dynamic test instrument for a joint structure of a flexible anti-seepage body and a test method thereof, and belongs to the technical field of membrane anti-seepage structures of high-membrane rockfill dams. Background technique [0002] Most of the reservoir dams in the development and utilization of water resources are built with earth-rock materials. Although most of them are medium and low dams, the highest dams in the world are earth-rock dams. The anti-seepage body in high rockfill dams mainly adopts cohesive soil core wall or reinforced concrete face plate, but when the foundation of the dam site is a deep covering layer, only clay core wall (or inclined core wall) can be used to connect the foundation concrete anti-seepage The type of wall. Rockfill dams with high clay core walls need to collect clay near the dam site, which not only costs a lot of land, but also causes damage to surface vegetation and aff...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
Inventor 束一鸣吴海民姜晓桢刁慧贤周天娥杨帆
Owner HOHAI UNIV
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