A Pile Foundation Model Loading Device Under Complicated Loads
A loading device and pile foundation technology, applied in foundation structure engineering, foundation structure test, construction, etc., can solve pile-soil failure shear zone without effective monitoring, without effective pile-raft foundation compression and pull-out bearing characteristics, Research on mechanical properties and failure modes, etc.
Active Publication Date: 2022-03-22
YANGZHOU UNIV
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Problems solved by technology
However, the current research work on the mechanical properties and failure modes of the new piled raft foundation under horizontal, vertical and cyclic loads is still shallow, and there is no effective test instrument to test the compressive and uplift bearing characteristics of the piled raft foundation. There is no effective monitoring method for pile-soil failure shear zone
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[0020] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.
[0021] combine Figure 1-Figure 8 , a pile foundation model loading device under the action of a complex load of the present invention, comprising a model box 29, a reaction frame 12 fixed on the upper end of the model box 29, supports fixed on both sides of the model box 29; the reaction frame 12 The first vertical loading device 2 and / or the second vertical loading device 4 are arranged on it; the first vertical loading device 2 is arranged on the right middle part of the model box 29; the second vertical loading device 4 is close to The front side of the model box 29, the front side of the model box 29 is a transparent glass panel 6; the first horizontal loading device 3 and / or the second horizontal loading device 40 are provided on the support; the first horizontal loading device 3 is located in the model box 2. In the middle, the second ...
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The invention discloses a pile foundation model loading device under the action of complex loads, which comprises a main frame, two sets of vertical loading devices for loading the model structure are arranged on the main frame, two sets of horizontal loading devices for loading the model structure The vertical loading device is controlled by the hand wheel system, and the horizontal loading device is controlled by the speed-regulating motor. The two cooperate with each other but do not interfere with each other; The load force of the loading handwheel system, the dynamometer is used to measure the horizontal cyclic load value; the front of the main tank is equipped with a transparent glass panel, and the data of the test process is collected through a digital camera to determine the damage and development trend of the soil shear zone; One side of the main tank is equipped with a drainage partition to dissipate the pore water pressure in the deep soil; the bottom of the main tank is equipped with a pulley to facilitate the overall movement.
Description
technical field [0001] The invention belongs to the field of bridge pile foundation engineering, in particular to a pile foundation model loading device under complex load. Background technique [0002] With the development of my country's economy, a large number of super high-rise buildings are built, and there are a large number of soft soil areas in coastal areas, which have high requirements for the settlement and stability of high-rise buildings. Therefore, a new foundation form is needed as an optimal solution to this engineering problem. Due to the low bearing capacity of shallow soil in coastal areas of my country, the advantages of raft foundation and pile foundation are fully utilized in the construction of high-rise buildings, and a new form of pile-raft foundation is proposed, which can be used as a solution to the problem of high-rise building settlement and insufficient bearing capacity. However, the current research work on the mechanical properties and failur...
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IPC IPC(8): E02D33/00E02D27/12
CPCE02D33/00E02D27/12
Inventor 朱小军胡顺洋顾维扬戴良岩贾晓敏
Owner YANGZHOU UNIV