Foundation pit pile test structure and foundation pit pile test method
A foundation pit and test pile technology, which is applied in foundation structure tests, foundation structure engineering, construction, etc., can solve problems such as inaccurate test pile results, achieve accurate test pile results, reduce exposure time, and have good test pile conditions Effect
Pending Publication Date: 2019-05-31
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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[0004] The embodiment of the present invention provides a foundation pit test pile structure and a foundation pit test pile method to solve the problem of inaccurate results of the pilot test piles in the prior art
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[0012] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0013] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relation...
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The embodiment of the invention relates to the field of foundation pits, and provides a foundation pit pile test structure and a foundation pit pile test method, wherein the pile test structure comprises a first pile section, a loading device, a second pile section and a stacking object; the pile top of the first pile section is positioned at the bottom of a foundation pit to be excavated; the pile top of the first pile section is connected with one side of the loading device; the opposite sides of the loading device are connected with the pile bottom of the second pile section; the pile top of the second pile section is positioned at the top of the foundation pit to be excavated; and the stacking object is arranged at the pile top of the second pile section and is used for loading the first pile section. According to the foundation pit pile test structure and the foundation pit pile test method, the pile test result obtained by the pile test structure is the test value from the pile top to the pile bottom of the pile foundation, and the pile test result is accurate and does not need to be converted; and the pile top of the second pile section is arranged at the pit top of the foundation pit to be excavated, and the pile top of the second pile section is provided with the stacking object, so that the pile test process is carried out on the ground, and the tonnage of the pile test stacking object is reduced.
Description
technical field [0001] The embodiments of the present invention relate to the field of foundation pit technology, in particular to a foundation pit test pile structure and a foundation pit test pile method. Background technique [0002] Due to the high risk factor of foundation pits in urban areas, test piles after foundation pit excavation will increase the risk of foundation pits, and the bottom of foundation pits is not convenient for large-scale surcharge, so anchor piles are generally required. If the pile is tested on the ground, the pile head must first be driven to the ground, and the side friction resistance of the ground part must be considered, resulting in a larger tonnage of the test pile and a larger surcharge scale. The obtained value needs to deduct the side friction resistance of the empty drill end of the foundation pit , the value is not direct and not accurate enough. [0003] If the self-balancing method is used to test the pile, since the negative fric...
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IPC IPC(8): E02D33/00
Inventor 刘蒙陈紫妍徐永浩倪文兵卓杭李新业
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP