Manufacturing die of low-intensity similar-material standard test pieces
A technology of standard test pieces and similar materials, which is applied in the field of making standard test pieces of low-strength rock and soil similar materials, can solve the problems of material waste, difficulty in demoulding, and damage of test pieces, so as to speed up the test process and save the number and size of molds precise effect
Inactive Publication Date: 2016-02-03
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
[0005] At present, there are some deficiencies in the existing molds for making standard test pieces: ① When the existing molds are used to make standard test pieces of low-strength similar materials, due to the low strength of similar materials, demoulding failures often occur, and the test pieces are damaged, resulting in waste of materials , which affects the progress of the test; ②Many standard specimen molds are too simple in form and low in cost, and the results cannot meet the requirements of strength and stiffness of rock-soil similar materials; The dimensional accuracy of the standard test piece is improved, but it also causes difficulty in demoulding. When the demoulding is forced, the standard test piece is scrapped
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[0020] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0021] A low-strength similar material standard test piece manufacturing mold, which consists of a first high-strength embedded top cover 1A, a second high-strength embedded top cover 1B, a first fixed collar 2A, a second fixed collar 2B, a polymer The compound isolation film 3, the first piece combined side plate 4A, and the second piece combined side plate 4B are characterized in that: the first piece combined side plate 4A, After the second piece combined side plate 4B is assembled together, the first piece combined side plate 4A and the second piece combined side plate 4B are fixed with the first fixing hoop 2A and the second fixing hoop 2B , while ensuring the dimensional accuracy of the standard test piece, it is easier to remove the formwork. The polymer compound isolation film 3 is arranged between the rock-soil similar material and the first split combined s...
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The invention discloses a manufacturing die of low-intensity similar-material standard test pieces. The manufacturing die adopts the structure that a first laminate combined side plate and a second laminate combined side plate are spliced together and fixed by a first fixing hoop and a second fixing hoop, a high-molecular compound isolating membrane is arranged between a geotechnical similar material and the first laminate combined side plate, as well as between the geotechnical similar material and the second laminate combined side plate, the first laminate combined side plate and the second laminate combined side plate are spliced into a whole by the first fixing hoop and the second fixing hoop, and the high-molecular compound isolating membranes are attached to the inner sides of the first laminate combined side plate and the second laminate combined side plate. The manufacturing die is simple in structure and convenient to use, can quickly find the similar material ratio meeting the requirements of physical mechanics parameters of field rock and soil and greatly facilitates researches on low-intensity surrounding rock similar material physical model tests.
Description
technical field [0001] The invention relates to the technical field of making standard test pieces of low-strength rock-soil similar materials, and more particularly relates to a mold for making standard test pieces of low-strength similar materials, which is suitable for the proportioning test of similar materials in the early stage of physical model tests of low-strength rock-soil similar materials. The special innovative design of the invention ensures the manufacturing precision of the standard test pieces of low-strength similar materials and improves the ratio test efficiency of low-strength similar materials. The inner side of the mold contains a polymer compound isolation film, which improves the success rate of demoulding the standard test piece of similar low-strength materials, and avoids the disadvantages of "bonding" between the test piece and the mold during traditional mold making. Background technique [0002] With the development of our country's economy and...
Claims
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IPC IPC(8): G01N1/28
Inventor 雷广峰肖龙鸽刘滨苏守一周哲王俊涛彭星新张静
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI