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Sensor arrangement structure and method in buffer material multi-field coupling experiment bench

A technology of test bench and buffer material, which is applied in the field of arrangement structure of sensors in multi-field coupling test bench of buffer material, can solve problems such as difficult to eliminate, high radioactive activity, high toxicity, etc.

Active Publication Date: 2014-06-11
BEIJING RES INST OF URANIUM GEOLOGY
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Problems solved by technology

High-level waste contains radioactive substances with high activity, long half-life, high toxicity, and high heat release rate. Once these radioactive substances enter the biosphere, they will be extremely harmful and difficult to eliminate

Method used

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  • Sensor arrangement structure and method in buffer material multi-field coupling experiment bench
  • Sensor arrangement structure and method in buffer material multi-field coupling experiment bench
  • Sensor arrangement structure and method in buffer material multi-field coupling experiment bench

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Embodiment Construction

[0034] The arrangement structure and method of sensors in a buffer material multi-field coupling test bench provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] figure 1 It is a schematic diagram of the monitoring area and monitoring layer distribution of the buffer material multi-field coupling experiment bench. Such as figure 1 As shown, according to the current conceptual design of geological disposal of high-level radioactive waste in my country, the buffer material multi-field coupling test bench generally includes vertical test bench cavity 2, bentonite block 3, heater 5, water injection device 1 and data acquisition system and other parts , which is an axisymmetric structure. Among them, the heater 5 in the center is used to simulate the decay heat release phenomenon of the high-level radioactive waste disposal tank, and the water injection pipe 1 placed around the c...

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Abstract

The invention belongs to the field of research of buffer material multi-field coupling performances in high-level waste geological disposal and in particular relates to a sensor arrangement structure and a method in a buffer material multi-field coupling experiment bench. The invention aims to provide necessary conditions for successfully constructing a buffer material thermal-water-force-chemical multi-field coupling large experiment bench and indicating behaviors of the buffer material under the multi-field coupling condition. According to the structure and the method, three different monitoring areas are divided in a compacted bentonite block layer from bottom to top according to the position of a heater in the experiment bench, different monitoring layers are finely divided in each monitoring area, and the monitoring layers are perpendicular to a cross section of a vertical axis of the experiment bench, wherein two monitoring layers are divided in a bottom monitoring area, four monitoring layers are divided in a middle monitoring area, two monitoring layers are divided in an upper monitoring area, a displacement sensor needs to penetrate through multiple monitoring layers, and a soil stress sensor, an interstitial hydraulic pressure sensor, a temperature sensor, a temperature and humidity sensor and an electrochemical corrosion sensor are positioned in the monitoring layers.

Description

technical field [0001] The invention belongs to the field of research on multi-field coupling performance of buffer materials for geological disposal of high-level radioactive waste, and in particular relates to the arrangement structure and method of sensors in multi-field coupling test benches for buffer materials. Background technique [0002] The safe disposal of radioactive waste is a key factor affecting the sustainable development of the nuclear industry, and the safe disposal of high-level radioactive waste is particularly prominent. High-level waste contains radioactive substances with high activity, long half-life, high toxicity, and high heat release rate. Once these radioactive substances enter the biosphere, they will be extremely harmful and difficult to eliminate. Regarding this issue, the "Guidelines for Research and Development Planning of High-Level Radioactive Waste Geological Disposal" jointly issued by the National Defense Science, Technology and Industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N33/24
Inventor 赵星光谢敬礼刘月妙王驹曹胜飞马利科
Owner BEIJING RES INST OF URANIUM GEOLOGY
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