High pressure triaxial pressure chamber with multiple measuring cells

A technology of triaxial pressure and high pressure, applied in measuring devices, instruments, etc., can solve the problems of expensive equipment and complex structure, and achieve the effect of reliable experimental means

Active Publication Date: 2016-01-13
INST OF MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In the past two years, the GCTS company in the United States has developed a gas hydrate soil dynamic and static triaxial instrument, but the overall equipment is expensive and has a complicated structure

Method used

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  • High pressure triaxial pressure chamber with multiple measuring cells
  • High pressure triaxial pressure chamber with multiple measuring cells
  • High pressure triaxial pressure chamber with multiple measuring cells

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Embodiment Construction

[0024] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0025] In the present invention, optional ultrasonic, electrical resistance and TDR (time domain reflectance) measurement units are equipped inside the pressure chamber and at the upper and lower ends of the sample to measure the ultrasonic, electromagnetic and voltage signals of the hydrate sediment sample, and then the theoretical The physical parameters such as hydrate content, hydrate distribution and decomposition degree of the sample are deduced from the empirical relationship.

[0026] Relatively speaking, it is easier to conduct physical property tests in hydrate synthesis and decomposition equipment, especially in pure hydrate synthesis and decomposition. However, it i...

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Abstract

The invention discloses a high-pressure triaxial pressure chamber comprising multiple measuring units. The high-pressure triaxial pressure chamber comprising the multiple measuring units comprises a main cavity, a lower base plate positioned on the lower portion of the main cavity and an upper top cover on the upper portion of the main cavity, the lower base plate and the upper top cover are connected through three shafts, and the high-pressure triaxial pressure chamber comprising the multiple measuring units further comprises one or more of an ultrasonic measuring unit, a time domain reflection measuring unit, a resistance measuring unit and a temperature measuring unit, wherein the ultrasonic measuring unit, the time domain reflection measuring unit, the resistance measuring unit and the temperature measuring unit can be replaced for use. The multiple measuring units are combined with an existing aquo-complex composition and decomposition and mechanical property measuring system, therefore an original aquo-complex composition and decomposition and mechanical property integrated device not only can measure macro-parameters including stress strain, stress intensity and the like, but also can measure parameters including sound wave, electromagnetic wave, electrical resistance property and the like of aquo-complex simultaneously, and thus sound experiment foundation is laid for in-depth study on the relation among macromechanics parameters, all physical property parameters and sound wave and resistance parameters of aquo-complex deposits, and reliable experimental methods are provided.

Description

technical field [0001] The invention relates to a high-pressure triaxial pressure chamber, in particular to a high-pressure triaxial pressure chamber containing multiple measuring units. Background technique [0002] Gas hydrate deposits generally contain multiphase media such as rock-soil skeleton, hydrate, pore water, and gas. The content and distribution of each phase media will lead to changes in the mechanical properties of hydrate deposits. [0003] At present, the integrated equipment for the synthesis, decomposition and mechanical properties of natural gas hydrate deposits at home and abroad are all refitted from the original geotechnical high-pressure triaxial tester, which can test the hydrate formation and decomposition before and after, as well as during the decomposition period. static shear strength. [0004] In the last two years, GCTS Company of the United States has developed a gas hydrate soil dynamic and static triaxial instrument, but the overall equipme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02
Inventor 王淑云鲁晓兵张旭辉赵京王爱兰
Owner INST OF MECHANICS - CHINESE ACAD OF SCI
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