Jack-embedded type static testing girder
A static load test and jack technology, which is used in the test of the foundation structure, the survey of the foundation soil on site, and the construction, etc., can solve the problems of high counterweight, poor safety and stability, and insecurity, and reduce energy consumption, hoisting and safety. The effect of convenient transportation and improved safety
Inactive Publication Date: 2015-04-15
湖北万钧工程技术有限责任公司
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Problems solved by technology
The jack and the main beam are not easy to align, the installation is time-consuming, and the overall installation height is too high, and the safety and stability are poor; especially for the stacking method, the height of the stacking platform is about the sum of the height of the jack, the main beam, the auxiliary beam, etc. The higher the platform, the higher the center of gravity, the less safe it is, and the higher the energy consumed for lifting the counterweight
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[0007] Such as figure 1 As shown, the main beam of the jack embedded static load test of the present invention, the beam body 1 can be an I-beam or a box girder, and a jack embedding cavity is provided in the middle, and the embedding cavity is a hollow structure with a hole at the bottom, and ribs are provided at both ends Plate 2, counter force plate 3 is set on the top, support rods 6 are set on both sides, and the bottom is an orifice for free expansion and contraction of the jack. When assembling the main beam, first place the jack 5 on a flat ground, lift the beam body 1, align the hole at the bottom of the embedded cavity with the jack 5 up and down, drop the beam body 1, and then use the suspension bolt assembly 4 to connect the jack 5 to the The reaction plates 3 with connecting bolt holes are connected together, and the main beam of the jack embedded static load test is assembled. In non-test conditions such as hoisting and transportation, the beam body 1 is connect...
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The invention provides a jack-embedded type static testing girder for detecting the bearing capacity of a base pile, a foundation and the like, and aims at overcoming the shortages that the existing static testing girder is independent from a loading hydraulic jack, the jack and the girder are difficultly centered, most time is needed during mounting-, the overall mounting height is excessively high, and the safety and stability are poor. The jack-embedded type static testing girder is characterized in that a jack embedded cavity of which the bottom part is equipped with a hole is formed in the middle of a girder body (1); rib plates (2) are arranged at two ends of the embedded cavity, and a jack reaction plate (3) is arranged on the top part of the embedded cavity, and supporting rods (6) are arranged at two sides of the bottom part of the embedded cavity; the components above are all integrally welded; when assembling the girder, the jack (5) and the reaction plate (3) equipped with a connecting bolt hole are connected through a hanging bolt assembly (4); when in test, the hanging bolt assembly (4) can be completely released. The jack-embedded type static testing girder can be applied to static testing of an anchorage pile, a piling-up foundation pile and the foundation and the like.
Description
technical field [0001] The invention relates to a main beam used for testing the bearing capacity of foundation piles or foundations, and more specifically, the invention relates to a main beam for jack-embedded static load tests. Background technique [0002] The main beam of the static load test is used to test the bearing capacity of foundation piles or foundations such as surcharge method and anchor pile method. The existing static load test main girder and the loading hydraulic jack are independent of each other and are installed and disassembled sequentially. The jack and the main beam are not easy to align, the installation is time-consuming, and the overall installation height is too high, and the safety and stability are poor; especially for the stacking method, the height of the stacking platform is about the sum of the height of the jack, the main beam, the auxiliary beam, etc. The higher the platform, the higher the center of gravity, the less safe it is, and th...
Claims
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IPC IPC(8): E02D33/00E02D1/00
CPCE02D1/00E02D33/00
Inventor 程玉平王连生朱波
Owner 湖北万钧工程技术有限责任公司