A ground subsidence test device and test method caused by water level circulation rise and fall
A technology of land subsidence and test equipment, which is applied in the direction of soil material testing, material inspection products, etc., to achieve the effect of easy implementation, simple method, and improved success rate
Active Publication Date: 2018-05-08
TONGJI UNIV
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Problems solved by technology
Such devices and methods are all on-site measurements or observations of land subsidence, and do not involve research on the mechanism of land subsidence caused by the circulation of water levels.
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[0035] Such as figure 1 As shown, a ground subsidence test device caused by the cyclic rise and fall of the water level includes a model column 23 containing test soil, a water supply unit, a drainage unit, a filter unit 22, a data measurement unit and a data acquisition unit, and the bottom of the model column 23 There is a model column water inlet 18 and a model column water outlet 19, the water supply unit is connected to the model column water inlet 18, the drainage unit is connected to the model column water outlet 19, the filter unit 22 includes the first PVC pipe, the second PVC pipe and the third PVC The first PVC pipe and the second PVC pipe are provided with penetration holes, the first PVC pipe and the second PVC pipe are vertically arranged at the bottom of the model column 23, and the first PVC pipe is arranged above the model column water inlet 18 and communicates with the model column The water inlet 18, the second PVC pipe is arranged above the water outlet 19 of...
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Abstract
The invention relates to a water level cycle rising and falling induced ground settlement test apparatus and a test method thereof. The apparatus comprises a model column (23) used for containing soil for test, a water supply unit, a water drainage unit, a data measurement unit and a data acquisition unit, the bottom of the model column is provided with a model column water inlet (18) and a model column water outlet (19), the water supply unit is connected with the model column water inlet (18), the water drainage unit is connected with the model column water outlet (19), the data measurement unit is arranged in the soil for test in the model column (23), and the data acquisition unit is connected with the data measurement unit; and the on or off state of the water supply unit and the water drainage unit is adjusted to carry out water level cycle rising and falling adjustment, the data measurement unit measures data information of the soil for test in the model column (23), and the data acquisition unit acquires data information, and analyzes the data information. Compared with the prior art, the apparatus and the method realize effective research of the change rules of the settlement volume, the soil pressure and the aperture water pressure of different soil layers, induced by water level cycle rising and falling.
Description
Technical field [0001] The invention relates to a ground subsidence test device and a test method, in particular to a ground subsidence test device and a test method caused by the cyclic rise and fall of water level. Background technique [0002] As a ubiquitous and long-standing geological disaster, land subsidence has received extensive attention from scholars from all over the world. As a result, a large number of scientific researches on land subsidence monitoring theories and technologies have been carried out, so that the development of land subsidence in some areas can be effectively controlled. However, when many scholars at home and abroad study the ground subsidence caused by the drop of the groundwater level, the usual method is to directly obtain the subsidence value or directly measure the ground subsidence value by monitoring the initial water level and the termination water level of the groundwater level, without considering the overall decline of the water level. ...
Claims
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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 张英平唐益群严婧婧赵文强尹叶鹏
Owner TONGJI UNIV