Water level cycle rising and falling induced ground settlement test apparatus and test method thereof

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 simple method, convenient operation and easy realization

Active Publication Date: 2016-09-28
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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.

Method used

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  • Water level cycle rising and falling induced ground settlement test apparatus and test method thereof
  • Water level cycle rising and falling induced ground settlement test apparatus and test method thereof

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Embodiment

[0035] Such as figure 1 As shown, a ground subsidence test device caused by water level circulation rise and fall, the device includes a model column 23 for holding 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 A model column water inlet 18 and a model column water outlet 19 are provided, 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, and the reverse filter unit 22 includes a first PVC pipe, a second PVC pipe and a third PVC pipe Pipe, the first PVC pipe and the second PVC pipe are provided with permeable 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 Water inlet 18, the second PVC pipe is set above the...

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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 water level circulation up and down. Background technique [0002] Land subsidence, as a ubiquitous and long-standing geological disaster, has attracted extensive attention from scholars from various countries. As a result, a large number of scientific research work on the theory and technology of land subsidence monitoring has been carried out, which has effectively controlled the development of land subsidence in some areas. However, when many scholars at home and abroad study the land subsidence caused by the drop of the groundwater level, the usual method is to directly calculate the subsidence value or directly measure the land subsidence value by monitoring the initial water level and the end water level of the groundwater level, without considering the overall decline process of the water level. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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
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