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Slip zone soil rheological test instrument and slip zone soil rheological test method

A technology of rheological test and sliding zone soil, which is applied to instruments, scientific instruments, and the use of stable shear force to test the strength of materials, etc. It can solve the problems of low accuracy and the inability to consider the effect of reservoir water, etc., and achieve accurate measurement results , the effect of accurate measurement data

Pending Publication Date: 2017-09-15
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found that the accuracy of the test data of the existing large-scale rheological tester for rock and soil is low, and it is impossible to measure the rheological properties of rock and soil under the action of long-term immersion and dynamic osmotic pressure. The effect of reservoir water cannot be considered when the long-term strength of the soil is used

Method used

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  • Slip zone soil rheological test instrument and slip zone soil rheological test method
  • Slip zone soil rheological test instrument and slip zone soil rheological test method
  • Slip zone soil rheological test instrument and slip zone soil rheological test method

Examples

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no. 1 example

[0044] Reference figure 1 This embodiment provides a sliding zone soil rheological tester 10, which includes a test box 100, a shear system 200, a reservoir water simulation system 300, and a measurement dynamic control system 400. The measurement dynamic control system 400 is set on the test box 100 It is connected to the shearing system 200, the shearing system 200 is housed in the test box 100, and the reservoir water simulation system 300 is connected to the shearing system 200 to provide the shearing system 200 with test water.

[0045] In this embodiment, a floor drain is installed at the bottom of the test box 100 to drain the water leaked during the test in a timely manner.

[0046] The cutting system 200 includes a first cutting box 210, a second cutting box 230, a normal pushing device 250, a cutting pushing device 270, and a sliding device 290. The first cutting box 210 and the second cutting box 230 are arranged opposite to each other. And they are all contained in the ...

no. 2 example

[0064] See Image 6 This embodiment provides a sliding belt soil rheological test method, which is applied to the sliding belt soil rheological tester 10 as in the first embodiment, and is used for the sliding belt soil rheological test under the condition of long-term immersion in reservoir water. The rheological test method of slip zone soil includes:

[0065] Stakeout sealing step 601: Place the sliding soil sample in the first shear box 210 and the second shear box 230 and pass the shear seam between the first shear box 210 and the second shear box 230 The membrane is wound and sealed.

[0066] In this embodiment, the shear joint is wound and sealed with a super-elastic impermeable geomembrane to prevent water from leaking out during the test.

[0067] Sample soaking step S603: Inject water into the first shear box 210 and the second shear box 230 through the water seepage component 330. After the test water completely penetrates into the sliding soil sample and flows out of the...

no. 3 example

[0074] See Figure 7 This embodiment provides a rheological test method for sliding zone soil, which is applied to the sliding zone soil rheological tester 10 as in the first embodiment, and is used for the rheological test of the sliding zone soil under dynamic osmotic pressure. Soil rheological test methods include:

[0075] Seepage pressure determination step S701: Obtain the change curve of hydraulic gradient with time according to the change of groundwater level in the landslide, and scale the hydraulic gradient with the time axis as the basis for determining test dynamic seepage pressure and test period.

[0076] Stakeout and sealing step S703: Place the sliding soil sample in the first shear box 210 and the second shear box 230 and pass the shear seam between the first shear box 210 and the second shear box 230 The impermeable membrane is wound and sealed.

[0077] In this embodiment, the shear joint is wound and sealed with a super-elastic impermeable geomembrane to prevent ...

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Abstract

The invention provides a slip zone soil rheological test instrument and a slip zone soil rheological test method, and relates to the field of soil measurement of slip zone soil, the slip zone soil rheological test instrument includes a test box, a shear system, a reservoir water simulation system and a measurement dynamic control system, the reservoir water simulation system comprises a water conveying circulation device and a water seepage component, the shear system includes a first shear box, a second shear box, a normal propulsion device and a shear propulsion device, the water seepage component is connected with both ends of the first shear box and the second shear box, and respectively connected with the first shear box and the second shear box, and the water conveying circulation device is connected with the water seepage component, and is used to convey test water to the water seepage component. Compared with the prior art, the slip zone soil rheological test instrument can measure the long-term strength of landslide-slip zone soil under long-term water immersion and dynamic osmotic pressure conditions, and has the advantages of simple measurement method and accurate data.

Description

Technical field [0001] The invention relates to the field of soil geotechnical testing equipment for sliding belts, in particular to a sliding belt soil rheological tester and a sliding belt soil rheological test method. Background technique [0002] The shear strength properties of slip zone soil is a key factor affecting the stability of slip zone soil, and it has important guiding significance for the design and construction of geological engineering. At present, the main method to obtain the shear strength properties of sliding zone soil is to carry out the geotechnical test of the sliding zone. The most commonly used method is to conduct the direct shear test. Conventional indoor direct shear instrument due to the limitation of the size of the test instrument itself, the particle size of the largest sample can not exceed 1 / 10 of the size of the shear box. In the test process, the larger particles are often removed, and the size appears The effect is different from the actua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24
CPCG01N3/24G01N2203/0025
Inventor 张玉明胡新丽谭福林何春灿章涵徐楚周昌王强吴爽爽
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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