Grouting device for muddy water splitting test exhaust and grouting method of grouting device
A grouting device, muddy water technology, applied in the direction of measuring device, applying stable tension/pressure to test material strength, instruments, etc., can solve the size and structure limitations, split hole air can not be excluded, can not meet scientific research and engineering requirements, etc. problem, to achieve a good sealing effect
Pending Publication Date: 2019-05-14
BEIJING JIAOTONG UNIV
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Problems solved by technology
[0002] The triaxial mud-water splitting test is one of the important means to study the phenomenon of soil mud-water splitting. With the research on the phenomenon of soil mud-water splitting, the existing triaxial mud-water splitting test equipment has been unable to meet the requirements due to size and structure limitations. Research and Engineering Requirements
During the injection of muddy water, due to the high sealing performance of the test instrument, the air in the split hole cannot be excluded
High air pressure formed by continuous grouting will seriously affect the results of mud-water splitting test
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[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0029] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...
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The embodiment of the invention provides a grouting device for muddy water splitting test exhaust. The grouting device for the muddy water splitting test exhaust comprises a pore-forming pipe barrel 1, a pore-forming pipe barrel bottom cover 2, a muddy water injection pipe 3, an exhaust pipe 4 and a one-way valve 6; one end of the pore-forming pipe barrel 1 is connected to the pore-forming pipe barrel bottom cover 2, and the other end is provided with the one-way valve 6; the muddy water injection pipe 3 penetrates into the pore-forming pipe barrel 1 through the pore-forming pipe barrel bottomcover 2, and the end, located on the outer part of the pore-forming pipe barrel 1, of the muddy water injection pipe 3 is connected with a high-pressure cement pump to provide high-pressure cement with controllable pressure; and the exhaust pipe 4 penetrates into the pore-forming pipe barrel 1 through the pore-forming pipe barrel bottom cover 2 for discharging air in a hole. According to the grouting device for the muddy water splitting test exhaust, the better sealing performance can be ensured, the air in a splitting hole can be adequately eliminated, the influence of the air on a large-size triaxial muddy water splitting test is avoided, so that the smooth going on of the large-size triaxial muddy water splitting test after full exhaust is ensured.
Description
technical field [0001] The invention relates to the technical field of a soil triaxial splitting test, in particular to a grouting device and a grouting method for exhausting air in a mud-water splitting test. Background technique [0002] The triaxial mud-water splitting test is one of the important means to study the phenomenon of soil mud-water splitting. With the research on the phenomenon of soil mud-water splitting, the existing triaxial mud-water splitting test equipment has been unable to meet the requirements due to size and structure limitations. Research and engineering requirements. In order to more accurately, comprehensively and truly understand the phenomenon of soil mud-water splitting, it is necessary to conduct a large-scale triaxial mud-water splitting test with a soil sample diameter greater than 30 cm. In the triaxial mud-water splitting test, it is necessary to make holes in the soil sample, and then inject high-pressure muddy water into the soil holes...
Claims
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Inventor 袁大军韩冰宇王滕罗维平金大龙李兴高吴俊沈翔金慧曹赛赛王小宇
Owner BEIJING JIAOTONG UNIV