Construction method for press-in type open caisson

Abstract

The invention discloses a construction method for a press-in type open caisson. The construction method comprises the following steps that the open caisson sections are pressed into a soil layer section by section; the adjacent open caisson sections are connected with each other; in the press-in process of the open caisson sections, a downward pressing assembly is arranged at the top end of each open caisson section and used for adjusting the posture and the settling velocity of the open caisson sections; after the open caisson sections are pressed into the soil layer, a hold hoop is annularly arranged on the surface, located on the periphery of the port of the open caisson, of the soil layer and is fixedly connected with the outer wall of the open caisson sections; and the hold hoop abuts against the surface of the soil layer, so that settling of the open caisson sections is stopped. The construction method has the advantages that (1) settling of the open caisson sections can be prevented by adopting the hold hoop, and construction personnel can use the hold hoop to stop the open caisson sections from settling as required; and (2) the downward pressing assembly can adjust the settling velocity and the posture of the open caisson sections, so that the problem that the settling process of the open caisson sections is difficult to control is solved.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a construction method for a press-in caisson. Background technique [0002] In areas where parking spaces are scarce and land use is tight, building a three-dimensional garage is a very effective solution. This kind of three-dimensional garage can be an underground vertical lift type mechanical garage, and adopts a four-lift shaft layout plan. About the lift shaft Construction scheme, the following construction methods are usually used at present: [0003] (1) Compressed air caisson construction method: [0004] To put it simply, a reinforced concrete working chamber with high airtightness is installed at the lower part of the caisson, and the compressed air whose pressure is equal to the groundwater pressure at the foot of the blade is injected into the working chamber through the automatic air pressure adjustment device, so that the operators can work in the ch...

AI Technical Summary

Problems solved by technology

[0012] The object of the present invention is to provide a construction method for a press-in caisson according to the above-mentioned deficiencies in the prior art. process difficult to control

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