Improved building pile foundation repairing technique
A technology for buildings and pile foundations, applied in construction, foundation structure engineering, sheet pile walls, etc., can solve problems such as substandard quality, extended construction period, and increased costs, and achieve strong adhesion, prevent soil spalling and collapse, and strong The effect of surface corrosion resistance
Inactive Publication Date: 2016-08-24
王良源
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Problems solved by technology
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects of cast-in-situ piles in the prior art that the quality is not up to standard when the hole wall collapses. In order to complete the construction, the workers have to re-dig the hole and pour, resulting in increased cost and extended construction period. , thus providing a building pile foundation repair process
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027]The present embodiment provides a kind of building pile foundation restoration technology, comprises the steps:
[0028] S1. Use ultrasonic inspection to determine the non-standard area of the pile foundation of the building;
[0029] S2. Excavate side wells on the side of the building pile foundation close to the non-standard part and on the side opposite to this side, so that the outer wall of the building pile foundation is on the side of the building pile foundation close to the non-standard part The side well is exposed in the side well, and the depth of the side well is controlled to be at least 50cm deeper than the lowest end of the non-standard part, and the distance between the side well on the other side and the building pile foundation of the non-standard part is no more than 50cm. greater than 50cm; in the present embodiment, since the height range of the substandard position is 5.8-6.1m, the depth of the side well is 6.15m;
[0030] S3. Cutting off the su...
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Abstract
The invention provides an improved building pile foundation repairing technique. Side wells are excavated on one sides of pile foundations in the approximate positions of substandard portions, the bottom of each side well is at least 50 cm lower than the lowest ends of the substandard portions, and the effect that all the substandard portions are exposed is ensured; then the substandard portions are removed through excavation, repairing concrete is poured into the side wells after silt removed through excavation is thoroughly cleaned up, and the repairing concrete is made to completely enter the excavated spaces and interiors of local side wells connected with the excavated spaces in a filling mode; and after the repairing concrete is completely cured, filled-soil compaction is carried out on the side wells. According to the repairing method, the repairing concrete can be well fed into the interiors of the excavated spaces for filling and makes attached contact with the excavated spaces, and the repairing concrete can be better combined with the prior pile foundations after being cured. Compared with the prior art, the improved building pile foundation repairing technique can lower the cost and shorten the project period.
Description
technical field [0001] The invention relates to the technical field of building pile foundation repair and maintenance, in particular to a building pile foundation repair process. Background technique [0002] Pile foundation is a common foundation form in bridge engineering, which can transmit the upper bridge load into the rock foundation and provide stable support for it. As a common form of bridge pile foundation, cast-in-place piles have the advantages of no vibration, no soil compaction, and low noise during construction, so they are widely used in the field of bridge construction. [0003] When making cast-in-situ piles, it is first necessary to use a rotary drilling rig to dig holes. After the holes are dug, put them into a reinforcement cage, and finally pour concrete. Since the wall of the hole dug out by the rotary drilling rig is soil, when concrete is poured into the hole, the part of the hole wall with softer soil is easily peeled off after being soaked in wat...
Claims
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IPC IPC(8): E02D5/64E02D17/08C04B28/00
CPCE02D5/64C04B28/00E02D17/08E02D2300/0006E02D2300/0045E02D2450/10E02D2450/106C04B14/06C04B14/04C04B24/281C04B24/40C04B24/045
Inventor 王良源
Owner 王良源