High-pressure water aid-sinking type construction device of open caisson
A technology of construction equipment and high-pressure water, applied in caissons, infrastructure engineering, construction, etc., can solve problems such as low construction efficiency and poor sinking effect, and achieve the effect of improving construction efficiency
Inactive Publication Date: 2016-02-03
SHANGHAI FOUND ENG GRP
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Problems solved by technology
The equipment used in the current caisson jetting sinking method is still single-sided water jetting equipment, which has the problems of low construction efficiency and poor sinking effect
Method used
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[0013] Below in conjunction with specific embodiment, further illustrate the present invention.
[0014] Such as Figure 1 to Figure 3 As shown, a construction equipment for sinking with high-pressure water in caissons includes high-pressure water pumps 6, circulation pipes 5, and steel pipes.
[0015] When making the caisson well wall, install steel pipes on both sides of the well wall 1, and the steel pipes should be evenly arranged along the well wall 1, with a spacing of 4m~6m, and the steel pipes should extend from top to bottom to the blade foot 2 place; the upper port of each steel pipe is connected to the high-pressure water pump 6 through the circulation pipe 5, which is used to press high-pressure water into the steel pipe through the high-pressure water pump to destroy the soil on the inside and outside of the caisson blade foot when the caisson is blocked by sinking, reducing the Sink resistance.
[0016] The steel pipe is a stainless steel pipe, the steel pipe i...
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Abstract
The invention relates to a high-pressure water aid-sinking type construction device of an open caisson. The device comprises a high pressure water pump, flowing pipelines and steel pipes. During manufacturing the wall of the open caisson, the steel pipes are correspondingly distributed and mounted at two inner sides of the wall of the caisson, wherein the steel pipes are uniformly arranged at intervals of 4 to 6m along the wall of the caisson; in addition, the steel pipes extend to a blade foot from top to bottom; an upper end port of each steel pipe is connected to the high pressure water pump through the corresponding flowing pipeline; high pressure water can be pressed into the steel pipes through the high pressure water pump in order to damage earth at the inside and outside of the blade foot of the open caisson when the open caisson is blocked and stopped sinking, so that the sinking resistance can be reduced. According to the device, high pressure water is pressed to two sides of the blade foot to aid sinking, thus improving the construction efficiency of the traditional water aid-sinking method.
Description
technical field [0001] The invention relates to a construction caisson construction equipment, in particular to a caisson construction equipment suitable for relatively hard formations. Background technique [0002] The caisson has many advantages such as high rigidity, high bearing capacity and strong anti-seepage ability, making it one of the most important construction methods for large-scale underground structures and deep foundations in cities. Of course, there are still some difficult technical problems in caisson construction. For example, when sandy soil, sandy gravel layer or sandy pebble layer is encountered during the subsidence process, it is often difficult for the caisson to continue to sink. At present, the measures for caisson assisted sinking mainly include water jet sinking method, thixotropic Mud retaining wall sinking method, weight sinking method, etc. The equipment used in the caisson jetting sinking method currently used is still single-side jetting ...
Claims
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Login to View More IPC IPC(8): E02D23/08
Inventor 李耀良王理想袁芬郑亮亮卢秀丽
Owner SHANGHAI FOUND ENG GRP