Simple mucky soil deep foundation pit rainy season rapid drainage device and using method

Abstract

The invention discloses a simple mucky soil deep foundation pit rainy season rapid drainage device and a using method, and particularly relates to the technical field of constructional engineering. According to the technical scheme, the simple mucky soil deep foundation pit rainy season rapid drainage device comprises a drainage device body, step steel plates and a lifting device, wherein the bottom of the drainage device body is provided with the multiple sets of step steel plates, one sides of the step steel plates are provided with pin shafts, the lifting device is arranged above the drainage device body, one side of the lifting device is provided with a lifting ring, the inner wall of one side of the lifting device is provided with a motor, the output end of the motor is fixedly connected with a lifting machine, and one side of the lifting device is provided with a hole-opening lug plate. The simple mucky soil deep foundation pit rainy season rapid drainage device has the beneficial effects that mucky soil is more compact, the drainage effect is improved, a wood plate device can be conveniently lifted out before next-day earth excavation construction, rapid drainage of a deep foundation pit in the rainy season is facilitated, the soil excavation efficiency is greatly improved, the excavation efficiency of the foundation pit mucky soil in the rainy season is improved, the construction period is shortened, the benefits are remarkable, and the effect is good.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a simple muddy soil deep foundation pit rapid drainage device in rainy season and its use method. Background technique [0002] Deep foundation pit refers to a project whose excavation depth exceeds 5 meters, or the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complicated. The foundation pit project mainly includes the design and construction of the foundation pit support system and earthwork excavation. Excavation is a highly comprehensive systematic project, which requires the close cooperation of geotechnical engineering and structural engineering technicians. The foundation pit support system is a temporary structure, which is no longer needed after the completion of underground engineering construction. The grooves are used for the foundation of the building, but the plane s...

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Problems solved by technology

[0002] Deep foundation pit refers to a project whose excavation depth exceeds 5 meters, or the depth does not exceed 5 meters, but the geological conditions, surrounding environment and underground pipelines are particularly complicated. The foundation pit project mainly includes the design and construction of the foundation pit support system and earthwork excavation. Excavation is a highly comprehensive systematic project, which requires the close cooperation of geotechnical engineering and structural engineering technicians. The foundation pit support system is a temporary structure, which is no longer needed after the completion of underground engineering construction. The grooves are used for the foundation of the building, but the plane shape is different. The foundation pit is square or relatively square, and the foundation groove is long and sometimes longer. What you need to master is the difference in their shapes. , the foundation pit refers to a foundation pit whose bottom area is within 27 square meters, and the long side of the bottom is less than three times the short side. Trench, that is to say, generally defines a deep foundation pit as: the bottom area is within 27 square meters, and the long side of the bottom is less than three times the short side, and the excavation depth is more than 5 meters or the basement is above the third floor, or the depth is not more than 5 meters However, for projects with complex geological conditions, surrounding environment and underground pipelines, silty soil has the characteristics of low liquid limit, low permeability, difficult drainage and consolidation, and has certain rheological properties. Especially in the rainy season, the bottom of the foundation pit is covered with silt due to the continuous rain, which seriously affects the excavation progress of the foundation pit soil. At this time, the open drainage method is often used on the basis of the well point dewatering project

[0003] The prior art has the following deficiencies: the existing sump pits have a poor drainage effect, and the erosion of rainwater causes the ditches to be destroyed. Finally, the bottom of the foundation pit becomes flat and muddy, and it is difficult to collect water in the sump pit and pump water.

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