Linkage type liquefiable sandy soil triaxial sample in-situ solidification sample preparation instrument and method

A triaxial sample and in-situ curing technology, which is applied in the preparation of test samples, etc., to achieve the effects of improving sample preparation accuracy and scope of application, avoiding environmental pollution, and high sample preparation efficiency

Active Publication Date: 2021-03-19
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to fully study the dynamic and static properties of solidified sand, it is usually necessary to carry out corresponding dynamic and static triaxial tests. The instruments and devices have not been reported yet, and it is urgent to carry out corresponding technical research

Method used

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  • Linkage type liquefiable sandy soil triaxial sample in-situ solidification sample preparation instrument and method
  • Linkage type liquefiable sandy soil triaxial sample in-situ solidification sample preparation instrument and method
  • Linkage type liquefiable sandy soil triaxial sample in-situ solidification sample preparation instrument and method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] refer to Figure 1 to Figure 7 , a linkage type liquefiable sand triaxial sample in-situ solidification sample preparation instrument, including the No. 1 slurry storage box 1, the No. 1 peristaltic pump 2, the No. 1 grouting pipe 3, the No. Peristaltic pump 5, No. 2 grouting pipe 6, No. 1 rubber plug 7, sand sample compaction barrel 8, compaction barrel hoop 9, composite plug 10, exudate outlet pipe 11, No. 2 rubber plug 12, organic Glass dish 13, No. 3 rubber stopper 14, excess slurry outlet pipe 15, exudate collection vessel 16 and excess slurry collection vessel 17;

[0027]The sample preparation instrument has two specifications, which can produce cylindrical samples with a diameter of 39.1mm and 61.8mm respectively, wherein the following sample preparation methods and related equipment for samples with a diameter of 61.8mm are indicated in parentheses; T...

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Abstract

The invention discloses a linkage type liquefiable sandy soil triaxial sample in-situ solidification sample preparation instrument. The instrument comprises a No.1 slurry storage box, a No.1 peristaltic pump, a No.1 grouting pipe, a No.2 slurry storage box, a No.2 peristaltic pump, a No.2 grouting pipe, a No.1 rubber plug, a sand sample compaction cylinder, a compaction cylinder pipe hoop, a composite plug, a percolate outlet pipe, a No.2 rubber plug, an organic glass dish, a No.3 rubber plug, a surplus slurry outlet pipe, a percolate collection dish and a surplus slurry collection dish. The linkage type liquefiable sandy soil triaxial sample in-situ solidification sample preparation method comprises the steps that sandy soil with the soil particle size ranging from 0.075 mm to 4 mm is putinto all sand sample compaction cylinders, a cylindrical sample with the set diameter range and the adjustable height range is formed after layered compaction, grouting is conducted through the peristaltic pumps according to related requirements, and therefore, a solidified sandy soil cylindrical sample meeting the standard requirements is obtained. The solidification effect and integrity of theprepared sample are improved, the sample preparation efficiency is improved, the sample preparation precision is improved, and the application range is widened.

Description

technical field [0001] The invention belongs to the technical field of solidification of multidisciplinary subjects such as geotechnical engineering, chemistry, microbes, polymer materials, etc., and relates to a linkage type liquefiable sand soil triaxial sample in-situ solidification sample preparation device and a method. Background technique [0002] Under the action of cyclic loads such as earthquakes, waves, and train loads, loose sandy soil foundations are prone to liquefaction, which in turn induces foundation instability and even house collapse. Therefore, liquefiable sand consolidation technology has broad application prospects in geotechnical engineering. The in-situ solidification technology of liquefiable sand is to inject high polymer, mortar, cement or microbial slurry that can induce calcium carbonate into the liquefiable sand to improve the strength and bonding performance of the liquefiable sand to solve the problem of earthquake The liquefaction problem of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 朱剑锋杨浩
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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