Rock soil wetting-drying cycle test device and use method thereof

A dry-wet cycle and test device technology, used in measuring devices, soil material testing, material inspection products, etc., can solve the problems of cumbersome process, difficult to achieve, long dry-wet cycle test period, etc., and achieve precise control of moisture content. Effect

Active Publication Date: 2016-08-24
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the dry-wet cycle test device under load conditions (such as CN102944481A) can perform dry-wet cycle tests on soil under load conditions, it cannot accurately control the moisture content of the sample, and the dry-wet cycle test cycle is longer
A test device for accelerated dry-wet cycle of rock and soil samples (CN201510405434.4) can improve the dry-wet cycle test cycle, but it still cannot accurately control the moisture content of the sample, and the test device is complicated and difficult to implement
Although the dry-wet cycle test device under no-load conditions (such as CN103776982A) can control the moisture conte

Method used

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  • Rock soil wetting-drying cycle test device and use method thereof
  • Rock soil wetting-drying cycle test device and use method thereof
  • Rock soil wetting-drying cycle test device and use method thereof

Examples

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] Such as Figure 1~Figure 7 As shown, a dry-wet cycle test device for rock and soil is composed of a loading device 1 , a weighing device 2 and a heating device 3 . The loading device 1 includes a base 4 , a fixed baffle 5 and a movable baffle 6 , and the movable baffle 6 can move along four pull rods 9 . Two constant force spring supports 7 are welded on the fixed baffle plate 5, and two constant force springs 8 up and down are installed on each constant force spring support 7, and each constant force spring 8 links to each other with a pull rod 9. The two ends of the pull rod 9 are an enlarged end 10 and a bolt-fixed end 11 respectively. Before the test, the sill 12 on the base 4 of the loading device 1 and the pressing bar 13 on the top together play the role of fixing the movable baffle 6 . The fixed baffle 5 is welded and fixed with the base 4, and the co...

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Abstract

The invention discloses a rock soil wetting-drying cycle test device and a use method thereof. The device is characterized by comprising a loading device (1) arranged on a weighing device (2) and a heating device (3) used for heating a sample device in the loading device (1), the loading device (1) comprises a base (4) horizontally arranged on the weighing device (2), the base (4) is sequentially and vertically provided with a fixed baffle (5) and a movable baffle (6) from left to right, the bottom end of the fixed baffle (5) is fixedly arranged on the base (4), the bottom end of the movable baffle (6) is in lap joint with the base (4), and the base (4) is provided with a weir (12) used for limiting the position of the movable baffle (6). By means of the rock soil wetting-drying cycle test device and the use method of the device, loads can be applied to soil, and the water content and deformation of soil body can be precisely monitored in real time.

Description

technical field [0001] The invention relates to a rock-soil dry-wet cycle test device and a use method thereof, in particular to a dry-wet cycle test device capable of real-time monitoring of rock-soil moisture content and deformation under load conditions and a use method thereof. Background technique [0002] There are many cases of huge economic losses and casualties caused by slope instability in our country. There are many factors that cause slope instability. Among them, a large number of studies have shown that the reduction of rock and soil strength caused by the dry-wet cycle is the inherent cause of slope instability. factors and determinants. [0003] After the soil undergoes a dry-wet cycle, the strength and microstructure of the soil change. Existing dry-wet cycle test devices for rock and soil are mainly divided into two categories, dry-wet cycle test devices under load conditions and dry-wet cycle test devices under no-load conditions. Although the dry-wet c...

Claims

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Application Information

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IPC IPC(8): G01N33/24G01N5/04
CPCG01N5/045G01N33/24
Inventor 贾凡王建磊王雅华刘斯宏鲁洋宗佳敏宋迎俊许雷樊科伟
Owner HOHAI UNIV
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