A multi-field coupling test bench system for waste geological disposal under three-dimensional stress
A three-dimensional stress, test bench technology, applied in the field of test systems, to achieve the effects of controllable deformation and high measurement accuracy
Inactive Publication Date: 2015-10-21
UNIV OF SCI & TECH BEIJING
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Problems solved by technology
Especially in the repository environment, the performance of bentonite under multi-field coupling conditions needs to be further studied
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[0014] As an embodiment of the present invention, see figure 1 , the present invention includes a rotary motor 1, a water head button 2, a propulsion cylinder 3, a jack 4, a test block area 5, a rubber pad 6, a pressure plate 7, a test bench 8, a test bench bottom plate 9, a 100T oil cylinder 10, a cable 11, and a sample area 12, heater 13, support plate 14. There are two 100T oil cylinders 10, which are used in conjunction with oil pipes and oil tanks, and are equipped with data measurement and acquisition systems, which apply pressure to the test block from two directions respectively. The pressure directions of the two are perpendicular to each other. The heater 13 can realize temperature regulation, and set different temperatures according to user needs. The sample area 12 is an area concentric with the heater 13, which can be used to place objects of different properties for experimental research. According to research at home and abroad, bentonite is an ideal barrier ...
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The invention relates to a multi-field coupling test rack system for geological waste disposal under three-dimensional stress. The multi-field coupling test rack system comprises a rotary motor, a water head button, a thrust cylinder, a jack, a support plate, a test block area, a rubber pad, a pressure plate, a test bench, a test bench baseplate, a cable, a sample area, a heater and two 100T oil cylinders. Vertical and lateral loading is performed on a test rack through loading devices such as the jack and the two 100T oil cylinders so as to test three-dimensional stress loading and simulate ground stress conditions; the heater is adopted to simulate a waste canister; a water injection system is adopted to simulate permeation of underground water; a heat-water-force multi-field coupling test rack is established accordingly. The multi-field coupling test rack system has the advantages of high strength, deformation controllability, corrosion resistance, high measurement accuracy and the like. The cavity of the test rack is made of Granitic pluton, a high-level waste geological repository environment is simulated really in consideration of multi-field coupling test under different ground stress conditions, and a numerical model under the multi-field coupling condition is established according to the conditions.
Description
technical field [0001] The invention designs a test system, in particular to a multi-field coupling test bench system for waste geological disposal under three-dimensional stress. Background technique [0002] With the development of nuclear science, nuclear technology has not only been widely used in the national defense industry, but has also penetrated into various fields closely related to people's lives, such as industry, agriculture, and medicine, and has greatly promoted the economic construction of various countries. Due to the characteristics of nuclear technology and nuclear energy, while benefiting mankind, it also produces a lot of high-level radioactive waste (hereinafter referred to as "high-level waste"). If these high-level radioactive wastes are not disposed of safely, they will have a huge destructive effect on human society and the natural environment, and the impact can last from hundreds to tens of thousands of years, or even longer. At the same time, w...
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IPC IPC(8): G21F9/00G21C17/00
CPCY02E30/30
Inventor 乔兰李远
Owner UNIV OF SCI & TECH BEIJING