Rockfill material wetting deformation test device and method for simulating rainfall infiltration by servo control
A technology of servo control and rainfall simulation, applied in the direction of measuring device, adopting mechanical device, using stable tension/pressure to test material strength, etc., to achieve the effect of simple operation, stable rainfall intensity and reasonable structure design
Active Publication Date: 2021-09-24
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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[0004] In order to overcome the above-mentioned deficiencies existing in the existing rainfall rockfill material wetting deformation test, the present invention provides a rockfill material wetting deformation test device and method for servo control simulation of rainfall infiltration
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[0039] The present invention will be further described below in conjunction with drawings and embodiments. However, those skilled in the art should know that the present invention is not limited to the specific embodiments listed, as long as it conforms to the spirit of the present invention, it should be included in the protection scope of the present invention.
[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "left", "right", and "horizontal" are based on the The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention .
[0041] In the description of...
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A rockfill material wetting deformation test device and method for simulating rainfall infiltration under servo control. The servo control mechanism of the water supply system of the present invention controls the supply of water to the consolidation compression device; a rainfall generating device is arranged above the upper permeable plate of the test mold; the flow meter I of the flow detection system is installed on the water inlet pipeline of the test mold, and the flow meter II Installed on the outlet pipe of the test mold; the data collector of the control system is connected with the data acquisition device of the servo control mechanism, flowmeter I, flowmeter II, and consolidation compression device through the data line; the computer is connected with the solenoid valve of the rainfall generating device A solenoid valve controller is provided on the data line. The beneficial effect is that the test device has a reasonable structure design, simple operation and high efficiency; the water supply device adopts a servo controller to ensure the stability and accuracy of the rainfall intensity; it can accurately simulate the wetness of rockfill materials including rainfall intensity, rainfall time and repeated rainfall characteristics. Chemical deformation test research.
Description
technical field [0001] The invention relates to a rockfill material wetting deformation test device, in particular to a rockfill material wetting deformation test device and method for simulating rainfall infiltration under servo control, belonging to the technical field of earth-rockfill dam engineering. Background technique [0002] With the rapid development of earth-rockfill dam projects in my country, rockfill materials have been widely recognized and promoted as an important dam building material in the engineering field. However, rockfill dams are prone to wetting deformation due to rainfall during the filling process. After the completion of the filling and the initial water storage and operation phase, the rockfill body will be wetted and deformed due to the infiltration of reservoir water. The wetting deformation of rockfill fillings will have a significant impact on the project. For core rockfill dams, it will often lead to collapse cracks on the dam crest, and in ...
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IPC IPC(8): G01N17/00G01N19/00G01N13/04G01N15/08G01N3/08G01N1/36
CPCG01N1/36G01N3/08G01N13/04G01N15/08G01N17/00G01N19/00G01N2203/0003G01N2203/0019G01N2203/0075G01N2203/0676G01N2203/0682
Inventor 张延亿邓刚陈含张茵琪陈辉王晓慧樊恒辉贾伟张幸幸宋兴鹏邵宇王俊鹏边京红王晓东
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES