Rock and soil tensile test device
A tensile test and geotechnical technology, applied in the direction of applying stable tension/compression to test the strength of materials, can solve the problems of troublesome sample clamping load application, small sample size, size effect and boundary effect, etc., to achieve The effect of reducing the influence of size effect and boundary effect
Active Publication Date: 2017-08-25
SHENZHEN GONGKAN GEOTECHN GRP
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Problems solved by technology
At present, the tensile strength tester or universal material testing machine is often used for the test of tensile strength. However, the rock and soil material has the characteristics of bulk materials, and it is troublesome in sampling and clamping and load application, so the existing test equipment cannot be used. Test the tensile strength, and the existing test equipment requires the size of the sample to be small, and the size effect and boundary effect of the smaller size rock and soil mass have a significant impact on it during the test
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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0021] see figure 1 and figure 2 , the embodiment of the present invention provides a rock and soil tensile test device, mainly used for testing the tensile performance of the I-shaped sample 1, including a base 2, on which a fixed test box 3 and a mobile Test box 4, the two test boxes are arranged side by side and the two ends 11 of the sample can be clamped respectively, the fixed test box 3 has a first action plate 31, the middle section 12 of the sample can protrude from this plate, and the test can be moved at the same time The box 4 has a second action plate 41, from which the middle secti...
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The invention relates to the field of rock and soil performance testing, and provides a rock and soil tensile test device, which is used for testing the tensile strength of an I-shaped sample, and includes a base on which there are arranged side by side for clamping the samples respectively. The fixed test box and the mobile test box at both ends, the fixed test box has a first action plate that can make the middle section of the sample protrude, the mobile test box has a second action plate that can make the middle section of the sample protrude, and the second action plate can make the middle section of the sample protrude. An action plate is arranged opposite to the second action plate, and the moving test box is connected with a pushing device for driving it to move away from the fixed test box. The present invention clamps the I-shaped sample through two test boxes. Under the action of the pushing device, the two test boxes generate force on the two ends of the sample, and then the middle section of the sample deforms, which can be very convenient. The tensile performance of the sample is detected, and the device can test large-scale samples, which can reduce the influence of size effect and boundary effect, and ensure the accuracy of tensile performance detection.
Description
technical field [0001] The invention relates to rock and soil performance testing equipment, in particular to a rock and soil tensile test device. Background technique [0002] The tensile strength of rock-soil mass and the contact surface between rock-soil mass and structures is of great significance to the tensile cracking failure of geotechnical engineering. At present, the tensile strength tester or universal material testing machine is often used for the test of tensile strength. However, the rock and soil material has the characteristics of bulk materials, and it is troublesome in sampling and clamping and load application, so the existing test equipment cannot be used. Test the tensile strength, and the existing test equipment requires the size of the sample to be small, and the size effect and boundary effect of the small size rock and soil mass have obvious influence on it during the test. Contents of the invention [0003] The purpose of the present invention is...
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IPC IPC(8): G01N3/08
Inventor 钟世英王贤能
Owner SHENZHEN GONGKAN GEOTECHN GRP