Over-water construction method of geotechnical cloth bag bulk piles

Abstract

The invention discloses an over-water construction method of geotechnical cloth bag bulk piles. A square barge is used as a carrier, and is provided with a pile driving frame; a guide rail is arranged on the pile driving frame; a pile driving hammer descends along the guide rail to drive a pile pipe underground; a geotechnical cloth bag is clamped between an inner ring and an outer ring of a clamping ring; a secondary lifting hook is lifted to hoist the geotechnical cloth bag to a length of needing to be driven underground; the geotechnical cloth bag is cut off; the pile pipe is provided with pile tip movable parts; the pile tip movable parts are closed to clamp the lower end of the geotechnical cloth bag; the pile pipe and the geotechnical cloth bag are both driven underground; then, bulk pile materials are added from a hopper; the pile pipe is hoisted after the bulk pile materials are added; the movable parts are automatically opened under the effect of the bulk pile materials; and the geotechnical cloth bag and the bulk pile materials are left underground; the pile pipe is hoisted above the water surface to perform the next circulation. The method performs annular restraint for such bulk materials as rubble through the geotechnical cloth bag, effectively improves the bearing capacity and the shearing resistance of foundation piles, and improves the shearing and slip resistance of foundation soil.

Description

technical field [0001] The invention relates to the field of foundation engineering, in particular to a method for constructing geotechnical cloth bag loose piles for water construction. Background technique [0002] For roads, bridges, tunnels, port piers, breakwaters and other buildings on rivers, lakes and seas, gravel piles or gravel piles are often used for foundation treatment, but such foundation treatment measures are often difficult to form piles, or cause The ground of the treated soft ground is severely uplifted, or the foundation bearing capacity is difficult to meet the design requirements due to poor foundation treatment effect, or the large amount of foundation settlement in the later stage of the project affects the project quality. In the construction of roads, bridges, ports and other projects, pile foundations are widely used. When constructing on soft soil subgrades or even on water, bulk piles are used for construction. However, during the construction o...

AI Technical Summary

Problems solved by technology

[0002] For roads, bridges, tunnels, port piers, breakwaters and other buildings on rivers, lakes and seas, gravel piles or gravel piles are often used for foundation treatment, but such foundation treatment measures are often difficult to form piles, or cause The ground of the treated soft ground is severely uplifted, or the bearing capacity of the ground is difficult to meet the design requirements due to poor ground treatment, or the large amount of ground settlement in the later stage of the project affects the quality of the project

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