Automatic control method and device for rock-soil drying and wetting cyclic test

A dry-wet cycle, test device technology, applied in non-electric variable control, temperature control, soil material testing and other directions, can solve problems such as accurate control, inability to conduct parallel tests, and inability to achieve temperature, to improve accuracy and test Efficiency and test accuracy, the effect of solving the problem of experimental result error

Pending Publication Date: 2019-09-20
CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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Problems solved by technology

Although this device can realize the purpose of automatic control of rock sample dry-wet cycle test, but the device can not realize accurate control of temperature, nor can it carry out parallel tests, so there is a lot of chance in the test

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  • Automatic control method and device for rock-soil drying and wetting cyclic test
  • Automatic control method and device for rock-soil drying and wetting cyclic test
  • Automatic control method and device for rock-soil drying and wetting cyclic test

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] The automatic control rock soil dry-wet cycle test method that the embodiment of the present invention provides, such as Figure 1-4 shown, including the following steps:

[0033] A. Get the test sample 36 ready, put it into the movable tray 21, connect the power supply / switch 7 of the dry-wet circulation device, the power supply / switch 7 controls the time control system 3, the temperature control system 4 and the moisture content control system 5 in general...

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Abstract

The invention discloses an autonomous control method and device for rock-soil drying and wetting cyclic test. The method comprises the following steps that A) a test sample is placed in a pallet, and a power supply or switch is switched on; B) wetting and drying standing time and the cycle frequency are input to a meter panel of a time controller, the working temperature is set in a meter panel of a temperature controller, and the drying state water content, the wetting state water content and total weight of the sample are input to the meter panel of a water content controller; C) the water content controller monitors the water content of the sample in a baking over in real time; D) the temperature controller monitors and adjust the temperature in a work room dynamically; and E) a time controller controls the test process in a unified way, and the control device is not stopped automatically until the whole rock-soil drying and wetting cyclic test is completed. Time, temperature and water content control systems are integrated, rock-soil drying and wetting cyclic test is controlled automatically, operation is simple, test is more accurate, and a parallel test problem in the rock-soil drying and wetting cyclic test can be solved.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering, in particular to an automatic control rock soil dry-wet cycle test method and device. Background technique [0002] When the roadbed is built, the roadbed is compacted near the optimum moisture content OMC. At the initial stage of road construction, the subgrade soil is in an unsaturated state, and the subgrade will continue to be wetted during operation, and will reach equilibrium in 2 to 3 years, that is, the equilibrium humidity of the subgrade. There are many factors that affect the humidity of the subgrade and the time to reach the equilibrium state, which vary according to the region, groundwater level, climate, subgrade filling, drainage facilities, traffic characteristics and other factors. However, the equilibrium humidity of the roadbed is not stable. The roadbed exposed to nature is constantly disturbed by environmental factors such as groundwater ups and downs, atmos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G05D23/20
CPCG01N33/24G05D23/20
Inventor 何斌张静波吴万平王云付伟阮艳彬谢松林张晶
Owner CCCC SECOND HIGHWAY CONSULTANTS CO LTD
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