Pre-control method for preventing inclination of sinking well

A caisson and shaft wall technology, applied in the fields of municipal engineering and civil engineering, can solve the problems of difficult deviation correction, no method of pre-controlling the inclination of the caisson, and inclination of the caisson, so as to avoid the inclination of the caisson.
CN101503879AInactive Publication Date: 2009-08-12CHINA FIRST METALLURGICAL GROUP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA FIRST METALLURGICAL GROUP
Publication Date
2009-08-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a pre-control method for preventing sunk well inclination. The pre-control method for preventing the sunk well inclination is characterized by comprising the following steps: before predicting the sunk well inclination before a sunk well sinks or during sunk well construction, constructing 4 to 10 support piles in the sunk well, and fixing a steel structural column at the top of the support pile; before the sunk well construction enters a soil layer which easily causes the sunk well inclination, temporarily stopping the sunk well construction; firstly, fixedly mounting 4 to 12 steel corbels at the lower part inside the well wall of the sunk well along the same circumference, then digging soil with a depth of 1 to 3.5 meters, fixedly mounting a support beam on the steel structural column, and extending the end of the support beam into the underside of the steel corbel inside the well wall of the sunk well; then beginning the sunk well construction till the sunk well sinks to the steel corbels and falls onto the support beam; vertically moving all the steel corbels upwards for 0.5 to 3 meters, and fixedly mounting the steel corbels inside the well wall of the sunk well till the lower end of the well wall of the sunk well sinks to the design elevation at the bottom; and then dismounting the steel corbels and the support beam, and dismounting the steel structural column and the support pile above the design elevation at the bottom of the sunk well. The method can pre-control the sunk well inclination.
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Description

technical field

[0001] The invention belongs to the fields of civil engineering and municipal engineering, and in particular relates to a pre-control method for preventing caisson tilting. Background technique

[0002] Due to geological conditions, excavation asymmetry, and different loads around the caisson, caissons often tilt during the sinking process, and it is difficult to correct the deviation, which may even affect the normal progress of the project and cause safety accidents. For the problem of caisson sinking and tilting, the traditional method is to use asymmetrical excavation and asymmetric surcharge on the upper part of the caisson or the outside of the caisson to correct the deviation, but these are all passive measures after the caisson tilts . Currently, there is no method for pre-controlling caisson inclination. Contents of the invention

[0003] The object of the present invention is to provide a pre-control method for preventing caisson inclination, wh...

Claims

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