Construction device and method of using bored piles on water for inland waterways

Abstract

The invention discloses a water drilling cast-in-place pile construction device for an inland waterway and a using method thereof. The construction device comprises a water moving platform, wherein arotary excavating mechanism is arranged on upper part of one end of the water moving platform, the rotary excavating mechanism is composed of an excavator with a small arm removed, a rotary excavatingdrilling rod and a drill bit, the rotary excavating drilling rod is vertically installed on a large arm of the excavator, the drill bit is installed on the head of the rotary excavating drilling rod,and a drilling cast-in-place pile protecting cylinder is right under the drill bit. Positioning piles are arranged on the two sides of the water moving platform, and an auxiliary mooring device is arranged on the side face of the end, fixed with the rotary excavating mechanism, of the water moving platform. In the using process, control baseline determination, pile position measurement and lofting positioning, burying of the drilling cast-in-place pile protecting cylinder, positioning of the water moving platform, centering of rotary drilling rod, drilling, reinforcement cage installation andconcrete pouring are sequentially carried out. According to the water drilling cast-in-place pile construction device, the problems that the occupied water area is large, the navigation is affected,security scheduling is difficult, the influence on the environment is large and the construction efficiency is low due to the fact that a traditional technology is adopted for water drilling cast-in-place piles are solved.

Description

technical field [0001] The invention belongs to the field of bored cast-in-situ pile construction, and relates to a construction device for bored cast-in-place piles on water for inland waterways and a method for using the same. Background technique [0002] Bored piles refer to the piles formed by forming pile holes in the foundation soil by means of auger drilling rigs and submersible drilling rigs at the project site, and placing steel cages in them and pouring concrete. Bored pile is a method of pile foundation reinforcement, which increases the bearing capacity of the foundation through pile driving; it can also be used for slope maintenance to resist the lateral pressure of the earth and prevent earth displacement. [0003] At present, the "water platform (or cofferdam) + rotary drilling" process is usually used in the construction of bored piles above water, and sometimes "double row cofferdam + dry excavation drilling" can also be used for drilling operations. Howev...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a construction device for bored piles on water used in inland waterways, so as to solve the problems of large water area occupied by bored piles using traditional techniques and affecting navigation, and the large number of ships on the water makes it difficult to safely dispatch. The problem of large amount of mud discharge has a great impact on the environment, and the problem of low construction efficiency caused by slow drilling speed

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