Large-scale simple shear instrument and test method for sludge-domestic waste mixed landfill
A technology of mixing landfill and domestic waste, applied in the direction of using stable shear force to test the strength of materials, instruments, scientific instruments, etc. The damage surface, the force is clear, and the effect of improving the research level
Active Publication Date: 2020-08-11
HOHAI UNIV
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[0004] At present, there are few reports on the large-scale single shear instrument and its test method for sludge-domestic mixed landfill in China. The present invention has developed a complete set of operation that is simple, quick, convenient and practical for sludge-domestic mixed landfill. The large-scale single shear instrument can realize the strength test of the mixed landfill body, which can provide a test basis for the stability analysis of a large amount of sludge-domestic waste mixed landfill, and also provide a basis for solving the large amount of sludge and domestic waste in the field of environmental engineering. Provide experimental technical support for the problem of lack of safe disposal channels for garbage
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[0030] The large-scale single shear instrument used for sludge-domestic waste mixed landfill in this embodiment is as follows: figure 1As shown, it includes single shear box 1, vertical motor 2, horizontal motor 3, reaction force guide rod 4, tension guide rod 5, base 6, top seat 7, support round rod 8, rolling guide rail 9, displacement sensor of the lower shear box 10. Shear ring displacement sensor 11, vertical direction displacement sensor 12, horizontal direction force sensor 13, vertical direction force sensor 14, horizontal direction power operation control line 15, vertical direction power operation control line 16, computer 17 and control Taiwan 18.
[0031] Among them, the single scissor box is designed as figure 2 , image 3 and Figure 4 As shown, it consists of the lower shear box and the upper shear ring, wherein the inner diameter of the lower shear box is 30cm, and the inner height is 5cm; the upper stack ring has a total of 11, of which 10 are steel with a...
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Abstract
The invention provides a large-size single shear apparatus for a sludge-domestic garbage mixed landfilling body and a testing method. The large-size single shear apparatus comprises a single shear boxdesigning system, a measurement system, a servo loading system, a data acquisition and monitoring system and a framework structure designing system. The testing method sequentially comprises the following steps: preparing a sample and mounting, clocking data acquisition and monitoring control analysis software TWJ and setting large-size single shear testing parameters, applying a normal load until the test sample is consolidated stably, applying a shear load until the shear displacement reaches 60mm, stopping shearing, preserving data and finishing the test. The large-size single shear apparatus provided by the invention has the advantages of simplicity in operation, simple structure, clear stress and the like; meanwhile, the disadvantage that a shear damaged surface is fixed by the large-size single shear apparatus in advance is overcome; a testing foundation is laid for stability analysis of a sludge-domestic garbage mixed landfill, and the large-size single shear apparatus also canbe popularized in the technical field of geotechnical tests.
Description
technical field [0001] The invention relates to a large-scale simple shear instrument and a test method for sludge-domestic garbage mixed landfill, belonging to the technical field of environmental protection. Background technique [0002] In recent years, with the acceleration of my country's urbanization process and population growth, the amount of sludge and garbage has increased sharply, and many cities have experienced "garbage besieged cities" and "sludge besieged cities", causing Serious environmental and social problems. Sludge is the precipitated substance after sewage dehydration treatment, rich in microorganisms, organic matter, pathogens, heavy metals, etc.; domestic waste is the solid waste generated in daily life and providing the required services for it. At present, the scientific mixed landfill of sludge and domestic waste is one of the commonly used sludge disposal technologies at home and abroad, but the compaction characteristics, biochemical degradation ...
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IPC IPC(8): G01N3/24G01N3/02
CPCG01N3/02G01N3/24G01N2203/0025G01N2203/005G01N2203/0298
Inventor 李磊易进翔王志强
Owner HOHAI UNIV