Construction method for concrete pile by static extrusion
A technology of concrete piles and construction methods, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems of reducing noise and vibration, achieve the effect of reducing noise and vibration and improving the quality of piles
Inactive Publication Date: 2008-09-24
梁毅
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Problems solved by technology
[0003] In order to overcome the shortcomings of existing concrete pile construction methods, the present invention provides a construction method for static extrusion concrete piles, in which a casing with an inner tube and an outer tube is pressed into the Underground, without heavy hammer hammering, the noise and vibration are greatly reduced, and the inner pipe is used to withstand the concrete pile body to lift the outer pipe, so that the pile will not be broken or necked down during the pile lifting process
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Embodiment Construction
[0014] Also shown in Figure 1 is the mode of implementing the present invention, comprising the following steps;
[0015] a. Use the hydrostatic oil cylinder (2) of the hydraulic press to press down the inner pipe (6) and the outer pipe (7) to the design depth to form the pile hole at the place where the pile driver (4) is in place; b. Lift the inner pipe (6), Fill the masonry (8) in the outer pipe (7); c. After repeatedly extruding the masonry (8) with the inner pipe (6), a masonry expansion head (9) is formed at the bottom of the outer pipe (7). Stop extruding when the pressure reaches the design value; d. use the inner pipe (6) lifted by the hoist, place a reinforcement cage in the outer pipe (7), and pour concrete; e. use the inner pipe (6) when lifting the outer pipe (7) Withstand the concrete; f. Lift the inner pipe (6) and the outer pipe (7) to make concrete piles (10), and complete the construction.
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The invention relates to a method for constructing the concrete post via static pressure, which comprises: 1, compressing the static pressure cylinder of hydraulic machine with inner and outer tubes into preset depth; 2, lifting the inner tube, and filling stone into outer tube; 3, compressing the inner tube to compress the stone of outer tube; 4, repeating the steps 2 and 3 to form a stone expanded head at the bottom of outer tube until reaching preset pressure and lifting the inner tube; 5, arranging steel bar cage into outer tube and irrigating concrete; 6, using inner tube to support the concrete to lift the outer tube. The invention can improve the quality of concrete post without noise and vibration in the process, and the broken and retract condition when lifting the outer tube.
Description
technical field [0001] The invention relates to civil engineering foundation reinforcement technology, in particular to a construction method of concrete piles. Background technique [0002] The construction method of existing concrete pile usually adopts to utilize steel wire rope to pull down and press the casing and hammer to fill the masonry in the pile hole with a heavy hammer to sink the casing into the ground. After repeated hammering and filling of masonry, the filled bricks and stones sink. The expansion head is formed at the bottom of the pile hole, then the reinforcement cage is placed, the concrete is poured, and the casing is lifted to complete the construction. In the construction of concrete piles disclosed in patent documents with application numbers 00106288.3, 200310115400.9, and 200410030741.0, heavy hammers are used to hammer the filling material in the pile hole to compact and reinforce the foundation soil at the bottom of the casing to form an enlarge...
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IPC IPC(8): E02D7/20E02D5/44
Inventor 梁毅
Owner 梁毅