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Forming method of biofixed soil strip beams for flexural tests

A bending test and forming method technology, which is applied in the application of stable bending force to test the strength of materials, preparation and sampling of samples for testing, etc. Good, angular effect

Active Publication Date: 2018-07-13
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

Traditional soil improvement methods often need to add a series of polluting chemical components, which may cause water pollution and even affect human health

Method used

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  • Forming method of biofixed soil strip beams for flexural tests
  • Forming method of biofixed soil strip beams for flexural tests
  • Forming method of biofixed soil strip beams for flexural tests

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] A method for forming a strip beam of biosolidified soil for bending tests, the method comprising the steps of:

[0039] 1) Prepare the materials needed for the mold: Drill holes on the plexiglass flat plate or purchase ready-made plexiglass with holes. Adjacent rows of holes are misplaced to form plum blossom-shaped holes. In addition, the diameter of the holes and the net distance between holes can also be modified and adjusted according to actual needs); and then the plexiglass is cut into plates with a woodworking saw blade, such as figure 1 As shown, the plate includes two longitudinal side panels 1 (355.6mm×63.5mm), one bottom panel 2 (431.8mm×170.2mm), two end panels 3 (154.9mm×63.5mm), two longitudinal side panel positioning panels 4 (172.7mm×25.4mm) and two end plate positioning plates (76.2mm×25.4mm); prepare two long...

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Abstract

The invention discloses a molding method of a biological soil fixation bar-shaped beam used for bending test. The method comprises the following steps: 1, preparing materials needed by a die; 2, assembling cut organic glass plates with holes; 3, making a lightweight die needed by geotechnical cloth cutting, and cutting a geotechnical cloth according to dimensions; 4, dismounting two transverse screws; 5, placing the cut geotechnical cloth in a rectangular model cavity, and adding sandy soil to a cavity formed by the geotechnical cloth; 6, fixing a distance between two vertical side plates through the two transverse screws; 7, pouring prepared bacteria to a test piece, and putting the whole die in a chemical solution; and 8, carrying out a reaction to form the biological soil fixation bar-shaped beam. The holes makes a nutrient solution conveniently go through the geotechnical cloth and conveniently penetrate to the sandy soil in the die, so the soil fixation effect is good; and a molded cuboid test piece has the advantages of obvious edges and corners, high surface flatness, uniform quality, stable mechanical performances, and convenience for later scientific research test of the bending resistance test.

Description

technical field [0001] The invention relates to a method for forming a biologically-fixed soil strip beam, in particular to a method for forming a biologically-fixed soil strip-shaped beam for bending tests. Background technique [0002] my country is in a period of rapid economic development, and the demand for construction land is constantly expanding, requiring more infrastructure construction to meet people's production and living needs. However, today's construction land resources are very limited, which requires land or The sand is solidified and improved. Traditional soil improvement methods often need to add a series of polluting chemical components, which may cause water pollution problems and even affect human health. [0003] The scientific research team of the project team is studying new environment-friendly soil and sand reinforcement technology, using one of the biomineralization processes that exist widely in nature, the microbial-induced calcium carbonate pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N3/20
CPCG01N1/286G01N3/20G01N2203/0264
Inventor 卜长明李琳黄林青王丽萍陈明政孙毅彭燕潘颖代水冰万虹宇赵春花
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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