Field test method for constructing ecological irrigation ditch based on microbial-induced calcite precipitation
A technology for microorganisms and irrigation canals, which is applied to the survey of foundation soil on site, construction, irrigation pipelines, etc., can solve problems that have not been applied, and achieve an environmentally friendly effect
Active Publication Date: 2020-04-10
SOUTH CHINA AGRI UNIV
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Problems solved by technology
As mentioned above, microbial mineralization technology can effectively improve the soil engineering properties of irrigation canal surfaces, but this technology has not been applied in actual irrigation canal projects
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[0024] In order to make the purpose, technical solution and advantages of this method clearer, the present invention will be further described in conjunction with the accompanying drawings and embodiments. It should be understood that since different site environments may cause certain differences in construction techniques, the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.
[0025] figure 1 The process flow of the field test method for simulating the construction of ecological irrigation canals based on microbial mineralization provided by the embodiments of the present invention is shown, and is described in detail as follows:
[0026] In step S1, according to the actual length of the irrigation canal base surface formed by on-site excavation, several sections are divided as sub-areas, each sub-area is about 1m long, and is used as a test work area;
[0027] In step S2, steel plates a...
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The invention discloses a field test method for simulating construction of an ecological irrigation ditch based on microbial-induced calcite precipitation, and belongs to the technical field of waterconservancy projects. The method comprises the following steps that excavating is carried out in a field to form an irrigation ditch base plane; the irrigation ditch is divided into a plurality of subareas by using steel plates; different material and process treatment is carried out on each subarea; the water permeability of a treated irrigation ditch soil body is tested through a water injectionmethod; the shear strength of the soil body is tested by using a portable cross plate shear apparatus; the impact resistance of the soil body is tested by using a total station; and the material andthe process of the ecological irrigation ditch are determined. According to the method, the water permeability, the shear strength and the impact resistance of soil bodies treated according to different parameters and the different processes are compared with one another, the material and the process for constructing the ecological irrigation ditch based on the microbial-induced calcite precipitation are determined, compared with a traditional irrigation ditch construction technology, the ecological irrigation ditch is constructed based on the microbial-induced calcite precipitation, a seriesof problems of greenhouse gas release during cement production, dust pollution, construction waste, soil pollution and the like in concrete lining are avoided, and the ecological irrigation ditch construction technology based on the microbial-induced calcite precipitation is an environment-friendly innovative technology.
Description
Technical field: [0001] The invention relates to a field test method for building an ecological irrigation canal based on microbial mineralization, and belongs to the technical field of water conservancy engineering. Background technique: [0002] Irrigation canals are irrigation canals, which refer to irrigation canals used to divert water for farmland irrigation. At present, the construction of irrigation canals is generally lined with thin concrete, which mainly plays the role of anti-seepage and anti-scouring. One of the main raw materials of concrete lining is cement, and its production process consumes more energy, releases greenhouse gases, and causes dust pollution. At the same time, for some field irrigation canals, subsequent farmland reconstruction often involves rerouting irrigation canals, and the concrete material is a hard lining, which will form construction waste during rerouting, and may even pollute the soil. Therefore, it is necessary to develop a green...
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IPC IPC(8): E02B13/00E02D1/02
CPCE02B13/00E02D1/022E02D1/027
Inventor 张巍邹家强刘铭刘爱华丛沛桐
Owner SOUTH CHINA AGRI UNIV
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