A landfill vulnerability location device and method based on composable optical fiber thermal response
A positioning device and thermal response technology, which is applied in the directions of measuring device, heat measurement, fluid tightness test, etc., can solve the problems of inability to locate the garbage body and covering layer on the geomembrane, difficult implementation technology, and low accuracy. , to achieve the effect of simple structure, wide applicability and easy operation
Active Publication Date: 2022-07-15
ZHEJIANG UNIV
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Problems solved by technology
At present, the detection of landfill leakage during the construction period of the liner mainly uses the electric spark method and the double-electrode method. These methods cannot locate the garbage body and the covering layer on the geomembrane. method and permanent detection system, etc., but the accuracy of these monitoring methods is not high, or they need to be embedded during construction, which is expensive and technically difficult to implement
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[0029] The present invention will be further elaborated and described below with reference to the accompanying drawings and specific embodiments. The technical features of the various embodiments of the present invention can be combined correspondingly on the premise that there is no conflict with each other.
[0030] like figure 1 As shown, it is a schematic diagram of the single use of the landfill leak location device based on the combinable optical fiber thermal response. Water inlet pipe 20, booster pump 21, water suction pipe 22, water suction valve 23 and solution bucket 24;
[0031] like Figure 2-5 As shown, the experimental tank 25 is a square structure, and its main structure is composed of a metal frame 1. The metal frame 1 is provided with an upper flange 3 and a lower flange 11 at different heights. The upper flange The plate 3 and the lower flange plate 11 divide the experimental tank 25 into the lower chamber 12, the middle chamber 13 and the upper chamber 1...
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The invention discloses a landfill leak location device and method based on a combinable optical fiber thermal response. The device includes an optical fiber demodulator, a heatable temperature-sensing fiber, an experimental tank, a water inlet pipe, a multi-channel booster pump, a water pumping pipe, a solution barrel, etc.; , using a multi-channel booster pump to control the flow rate, simulate the actual leakage point through a geomembrane with a hole fixed on the flange under the experimental tank, actively heat the temperature-sensing fiber, and record the temperature change along the fiber. The temperature response of the site geology is simulated to realize the coupled experimental analysis of the seepage field-temperature field-concentration field of the antifouling liner of the polluted site. Compared with the traditional electric spark method and the two-electrode method experimental device, the invention has the advantages of simple structure, convenient movement, free combination, investment saving, wide applicability, etc. Promote value.
Description
technical field [0001] The invention belongs to the field of water conservancy engineering and geotechnical engineering measurement facilities, in particular to a landfill leak location device and method based on a combinable optical fiber thermal response. Background technique [0002] With the development of productivity, the waste generated by human beings is increasing year by year, and the landfill method is the earliest waste treatment method applied and popularized in major and medium cities in my country. It was once the mainstream treatment method of urban waste. of municipal solid waste is disposed of by landfill. While the number of landfills is decreasing, the overall number of landfills is still growing. In my country, about 44% of the municipal solid waste is disposed of by this landfill method. During the long-term landfilling process of garbage, a high concentration of organic wastewater - leachate - will seep from the landfill due to compaction, rainfall an...
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IPC IPC(8): G01M3/00G01K11/32
CPCG01M3/002G01M3/007G01K11/32
Inventor 谢海建丁昊王亮费爽珂王顺玉詹良通
Owner ZHEJIANG UNIV