Foundation pile bearing capacity detection medium exchanging and filing device
A medium exchange and filling device technology, which is applied in basic structure engineering, basic structure testing, construction, etc., can solve the problems of inability to ensure the quality of foundation pile engineering and poor grouting effect, and achieve simple structure, reliable grouting, and processing. short cycle effect
Active Publication Date: 2013-11-27
NANCHANG YONGQI TECH DEV
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In this scheme, high-pressure hydraulic oil is injected from the ground hydraulic station through an oil inlet pipe into each hydraulic cylinder to test the bearing capacity of the foundation pile. For the gaps in the foundation pile after the detection, another grouting pipe must be buried for grouting. Due to the bearing capacity of the foundation pile The cross-section is not regular during the inspection, the grouting effect is poor, and the engineering quality of the foundation pile cannot be guaranteed
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[0015] Attached below the forehead figure 1 , 2 , 3 the present invention is described in detail:
[0016] A medium exchange and filling device for foundation pile bearing capacity detection, which includes a transition plate 7, a soft wall 6, an inner cylinder body 10, an outer cylinder body 4, a lower bottom plate 5, a liquid inlet pipe 2, and a liquid return pipe 9. The device is installed on In the middle section of the foundation pile, the transition plate 7 is welded together with the reinforcement cage of the upper section of the foundation pile, the lower bottom plate 5 is welded with the reinforcement cage of the lower section, and the upper displacement rod 1 is welded on the transition plate 7, and is directly connected to the ground through the sheath pipe; the lower displacement The rod 8 is welded on the lower bottom plate 5, and goes straight to the ground through the sheath pipe; in the middle is an annular pressure chamber, which is composed of a soft wal...
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The invention relates to a foundation pile detection medium exchanging device for detecting foundation pile bearing capacity in the building foundation pile construction. The device comprises a transition plate, the soft wall, an inner cylinder body, an outer cylinder body, a lower base plate, a liquid inlet pipe and a liquid returning pipe and installed in a middle section of a foundation pile, wherein the transition plate is integrally welded with an upper-section steel bar cage of the foundation pile, the lower base plate is integrally welded with a lower-section steel bar cage, and an upper displacement rod is welded on the transition plate and directly led to the ground surface through a casing pipe. A lower displacement rod is welded on the lower base plate and directly led to the ground surface through a casing pipe. The middle is an annular pressure cavity, and the pressure cavity consists of the soft wall, the transition plate and the lower base plate, wherein the soft wall is installed on the transition plate and the lower base plate through flanges. The liquid inlet pipe of the pressure cavity is connected with a loading system on the ground, and the liquid returning pipe is directly led to the ground surface. The foundation pile bearing capacity detection medium exchanging and filing device adopts the annular pressure cavity, the stress area is large, the soft wall is connected with the transition plate and the lower base plate through the flanges, the sealing performance is good, the connection is reliable, and additionally installed sealing rings are not needed. The device mainly uses water, cement paste and other liquids as a medium, and the medium is cheap and free of pollution.
Description
technical field [0001] The invention relates to a foundation pile detection medium exchange device for measuring the bearing capacity of foundation piles in the construction of building foundation piles. Background technique [0002] The existing load box used for foundation pile bearing capacity testing is to place a plurality of hydraulic oil cylinders at the bottom of the foundation pile or in the middle of the pile to load the foundation pile. In this scheme, high-pressure hydraulic oil is injected from the ground hydraulic station through an oil inlet pipe into each hydraulic cylinder to test the bearing capacity of the foundation pile. For the gaps in the foundation pile after the detection, another grouting pipe must be buried for grouting. Due to the bearing capacity of the foundation pile The cross-section is not regular during the inspection, the grouting effect is poor, and the engineering quality of the foundation pile cannot be guaranteed. Contents of the inve...
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IPC IPC(8): E02D33/00
Inventor 万凌志钱崑易教良
Owner NANCHANG YONGQI TECH DEV