Model test device and operation method of influence of open excavation foundation pit on adjacent building foundation
A model test device and basic technology, which is applied in the test of basic structure, construction, basic structure engineering, etc., can solve the problems of complex test process, inability to obtain general conclusions, and high difficulty in real-time monitoring, and achieve the effect of convenient operation and stable structure
Active Publication Date: 2018-01-23
SHIJIAZHUANG TIEDAO UNIV
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Problems solved by technology
[0004] The traditional subway station test research form is relatively single, real-time monitoring is difficult, the test process is relatively complicated, and real-time comparative analysis of various working conditions cannot be achieved, which brings great obstacles to the stability research of subway foundation pits and cannot be obtained. comprehensive general conclusion
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] The structure of the present invention is as figure 1 As shown, it includes a working condition simulation frame, a building simulation system, and a comprehensive monitoring and analysis system. The working condition simulation frame includes a structural frame 1 and a test bench base 3. The structural frame 1 surrounds the test bench base 3 to form a sealed enclosure. retaining structure; the building simulation system is divided into two groups, and the two groups of mirror images are respectively arranged on the base 3 of the test bench, and each group of building simulation system includes a simulated rock and soil body 4, a water tank 12, a lifting water tank 11, a prefabricated pile foundation 5, and a load 6. The simulated rock and soil body 4 is placed on the test bench base 3, the lifting water tank 11 is connected wi...
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The invention discloses a model test device and an operation method for the influence of open-cut foundation pits on adjacent building foundations, and relates to the technical field of foundation construction. The invention includes a working condition simulation frame, a building simulation system, and a comprehensive monitoring and analysis system. The working condition simulation frame includes a structural frame and a test bench base; Including simulated rock and soil body, water tank, lifting water tank, prefabricated pile foundation, load, the lifting water tank is connected with the water tank, the water tank is connected with the simulated rock and soil body, the prefabricated pile foundation extends into the simulated rock and soil body, and the load is placed on the prefabricated pile foundation ; The integrated monitoring and analysis system includes the displacement induction head embedded in the simulated rock and soil body and the integrated monitoring and analysis terminal connected to it. The invention can carry out real-time comparative analysis of multiple sets of different parameters, greatly improves the test efficiency, makes the test results more general and representative, and provides beneficial reference for scientific research and technology of foundation pit excavation.
Description
technical field [0001] The invention relates to the technical field of foundation construction, in particular to a model test device and an operation method for the influence of open-cut foundation pits on adjacent building foundations. Background technique [0002] With the increasingly congested traffic situation in large and medium-sized cities, the construction of subways has become an important transportation hub to drive urban economic development, relieve traffic pressure, and stimulate commercial economy. [0003] Subway construction can be divided into open excavation and underground excavation. The underground excavation method is costly, difficult to control and difficult to construct the subway. It is relatively small, but subsequently, the open-cut construction of the subway will inevitably excavate the road surface, which will affect the smooth traffic on the ground and the stability of the buildings on the ground. Therefore, it is of great significance to stu...
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IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 张骞杜彦良赵维刚王景春高阳李剑芝
Owner SHIJIAZHUANG TIEDAO UNIV