Composite pile for foundation engineering
A technology of foundation engineering and combined piles, which is applied in foundation structure engineering, sheet pile walls, buildings, etc., can solve problems such as difficulty in pulling out foundation piles, hidden dangers of building safety, etc., to save materials, stabilize foundation piles, and reduce production costs Effect
Active Publication Date: 2022-01-04
ZHEJIANG UNIV CITY COLLEGE +2
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Problems solved by technology
[0005] During the piling process, the foundation pile will form a lateral squeeze on the surrounding piles due to the soil squeezing effect, causing the surrounding piles to be squeezed and floated up, and the soil squeezing effect of the foundation pile will also squeeze the surrounding building foundations , thereby creating a safety hazard to the building
[0006] During the piling process, if it is found that there is a mistake in the piling and the traditional foundation pile needs to be pulled out from the soil, it is difficult to pull out the foundation pile
Method used
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[0037]The accompanying drawings are all schematic diagrams of the implementation of the present invention, so as to understand the principle of structural operation. The specific product structure and proportional size can be determined according to the use environment and conventional technology.
[0038] Such as figure 1 Shown, it comprises top pile tube 1, bottom pile mechanism 4, taper head 49, solid pile mechanism 31, wherein as figure 2 , 3 , 4, one end of several lower pile mechanisms 4 that are connected successively is equipped with a conical head 49 that facilitates its insertion into the foundation, and the other end is equipped with an upper pile pipe 1 that is larger in diameter and communicates with it; figure 1 , 2 , 3, each lower pile mechanism 4 is equipped with a pile fixing mechanism 31 that is fixed in the foundation, and two adjacent pile fixing mechanisms 31 are detachably connected.
[0039] Such as Figure 12 Shown, above-mentioned bottom pile mec...
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The invention belongs to the field of foundation piles, and particularly relates to a composite pile for foundation engineering, which includes an upper pile tube, a lower pile mechanism, a cone head, and a pile fixing mechanism, wherein one end of several connected lower pile mechanisms is installed with a convenient It is inserted into the cone head of the foundation, and the other end is equipped with an upper pile pipe with a larger diameter and communicated with it; the present invention can connect several sections of the lower pile mechanism into the foundation according to the depth of the foundation pile to be inserted into the foundation, and wait for the upper pile to After the pipe and all the pile joint pipes are inserted into the foundation, the pile fixing mechanism connected together by axial percussion makes the arc block in each lower pile mechanism protrude from the outer cylindrical surface of the pile pipe, so as to ensure that the foundation pile driven into the foundation is There will be no axial or circumferential looseness due to vibration and other reasons, making the foundation pile more stable.
Description
technical field [0001] The invention belongs to the field of foundation piles, in particular to a composite pile for foundation engineering. Background technique [0002] The upper pile connecting the traditional foundation pile with the building bears a large force and requires greater stiffness and bending resistance. The stiffness and bending resistance of the lower pile of the traditional foundation pile are relatively small due to its penetration into the soil. [0003] The diameter of the stepped foundation pile in the prior art decreases as it penetrates into the soil, thereby greatly saving the production cost of the foundation pile while meeting the rigidity and bending resistance performance requirements of different parts of the foundation pile. However, traditional foundation piles still have the following problems: [0004] The surface of the foundation pile is smooth, and the axial friction between it and the soil is small, which easily leads to axial loosenin...
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IPC IPC(8): E02D5/38E02D5/48
CPCE02D5/38E02D5/48
Inventor 余剑英王国棉陈怀伟郑新萍张绍波林峰朱兵金曰震杨勇王亮
Owner ZHEJIANG UNIV CITY COLLEGE