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Method for testing incipient motion and scouring properties of cohesive soil

A technology of cohesive soil and properties, applied in the direction of testing wear resistance, preparation of test samples, etc., can solve the problems of long preparation time of cohesive soil samples, difficult placement, affecting the overall test accuracy and progress of the test, etc., to ensure the sealing performance, ease of operation, and improved sealing performance

Active Publication Date: 2019-05-21
YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION
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  • Abstract
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Problems solved by technology

[0006] The present invention aims at the problem of long preparation time of cohesive soil samples in the cohesive soil priming scouring test, which is not easy to place, and affects the overall test accuracy and progress of the test. A method for testing the cohesive soil priming scouring properties is invented to meet the requirements of the cohesive soil priming scouring test. Accuracy and Schedule Requirements

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  • Method for testing incipient motion and scouring properties of cohesive soil
  • Method for testing incipient motion and scouring properties of cohesive soil
  • Method for testing incipient motion and scouring properties of cohesive soil

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Embodiment Construction

[0037] The present invention is described in detail below in conjunction with accompanying drawing.

[0038] A method of testing the priming scour properties of cohesive soils comprising:

[0039] Step 1. Preparation of cohesive soil sample 5:

[0040] Prepare vacuuming equipment and an organic transparent glass case, and described vacuuming equipment is made up of vacuum bucket 35 and vacuum pump 37; Described vacuum bucket 35 is communicated with organic transparent glass box by a transparent rubber tube-39, and described vacuum bucket 35 passes through A transparent rubber tube 2 40 communicates with the vacuum pump 37; the vacuum barrel 35 is provided with a pressure gauge 36; a layer of organic transparent glass plate 31 is laid at the bottom of the organic transparent glass box, and the organic transparent water-permeable plate Lay a layer of permeable geotextile 32 on 31, pour the viscous soil slurry 33 that has been stirred on the top of the permeable geotextile 32, a...

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Abstract

The invention relates to a method for testing the incipient motion and scouring properties of cohesive soil and belongs to the technical field of measurement. The IPC classification number of the patent is G01N3 / 00. According to the method, a cohesive soil sample preparation device is adopted to rapidly prepare a cohesive soil sample; a cohesive soil scouring device, a water tank, a water tank connecting device and a photographing device are adopted to test the incipient motion and scouring properties of the cohesive soil; and therefore, the preparation of cohesive soil samples with various good water contents can be accelerated, the incipient motion and scouring properties of the cohesive soil can be well tested, the scouring condition of the cohesive soil can be clearly photographed, accurate data measurement is performed, and the influence of the air inflow of the scouring water tank on test accuracy is avoided. The method has the advantages of high efficiency and convenient operation.

Description

technical field [0001] The invention relates to a method for testing the priming scour property of cohesive soil, which belongs to the field of measurement technology, and its IPC classification number is G01N3 / 00. Background technique [0002] The Yellow River is a sandy river, and there are often many clay layers on the river bank. Due to the change of water and sand in the river, the source area of ​​water and sand, and the deposition process of coarse and fine sand, the stratum structure is different, resulting in different soil structures. The river banks with soil structures have different anti-scouring capabilities to the river, resulting in abnormal river regimes and bank collapses, which in turn will cause instability in the lower reaches of the Yellow River and cause a series of problems. Studying the anti-scourability of riverbank clay soil has great theoretical significance and practical value for the practice of Yellow River Control. [0003] Cohesive soil is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N1/28
Inventor 江恩慧李军华许琳娟王远见田世民张向萍赵万杰董其华夏修杰赵新建张杨刘燕张清吴乐平刘彦晖
Owner YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION
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