Slurry circulating device and method for pile group drilling in land and water junction area

Abstract

The invention belongs to the technical field of drilling piles, and particularly relates to a water and land intersection area pile group drilling mud circulating device and method. According to the technical scheme, the mud circulating device for pile group drilling in the land and water junction area comprises a cofferdam, a plurality of drilling positions are arranged in the cofferdam, pile casings are arranged at the drilling positions, and circulating channels are communicated between the pile casings; a slurry device is arranged outside the cofferdam, a slag inlet of the slurry device is communicated with a slag discharge pipe of the drilling machine, and a slurry outlet of the slurry device is communicated with one of the pile casings or one of the circulating channels through a pipeline. The invention provides a mud circulating device and method for pile group drilling in a land and water junction area, which can fully precipitate drilling slag in circulating mud and does not occupy too much space.

Description

technical field [0001] The invention belongs to the technical field of bored piles, and in particular relates to a drilling mud circulation device and method for group piles in a water-land transition area. Background technique [0002] At present, super-long and super-large-diameter piles of bridges are usually constructed by rotary drilling. The underwater piles are usually equipped with drilling platforms and mud boxes for drilling slag storage and mud circulation. Land piles are usually used for mud pools and drilling slag pools. However, the mud box is complicated to manufacture and The capacity is limited, and the mud circulation process cannot effectively settle, the sand rate decreases slowly, and the emptying time is long. Land piles can solve the mud circulation by excavating mud pools on the spot, but the site requirements are relatively large, and generally large-scale underwater bridges cannot adapt. Contents of the invention [0003] In order to solve the ab...

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Problems solved by technology

[0002] At present, super-long and super-large-diameter piles of bridges are usually constructed by rotary drilling. The underwater piles are usually equipped with drilling platforms and mud boxes for drilling slag storage and mud circulation. Land piles are usually used for mud pools and drilling slag pools. However, the mud box is complicated to manufacture and The capacity is limited, and the mud circulation process cannot effectively settle, the sand rate decreases slowly, and the emptying time is long

Land piles can solve the mud circulation by excavating mud pools on the spot, but the site requirements are relatively large, and generally large-scale underwater bridges cannot adapt

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