A bridge pier tubular pile pile foundation construction device and its construction method
A construction device and pipe pile technology, which is applied in the direction of foundation structure engineering, sheet pile walls, buildings, etc., can solve the problems of incomplete drilling construction, mud loss, etc., and achieve the effect of resolving and eliminating hydraulic fluctuations
Active Publication Date: 2019-02-22
THE 3RD ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP CO LTD
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Problems solved by technology
[0002] The traditional bridge pier pipe piles in water use double-column steel pipe piles. The steel pipe piles are drilled by impact drills. The impact drills are installed on the floating platform. After the floating platform is positioned, a steel casing is installed, and the lower end of the steel casing is temporarily embedded. In the impact pit on the river bed surface, if the upper end is rigidly connected with the floating platform, the impact force of the drilling rig and the fluctuations of the water flow will affect the floating platform as a whole to drive the steel casing to rise and fall, while the lower end of the steel casing is in an active state. During the construction, a large amount of mud was lost rapidly, and the drilling construction could not be completed
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Embodiment 1
[0034] In this example, the water depth is 10m, the riverbed is exposed bedrock, and there is a shallow pebble covering layer locally. The bridge pier adopts double-column steel pipe piles, and the steel pipe piles combined with concrete are anchored 3.5m below the bedrock surface.
[0035] according to Figure 1 ~ Figure 4 As shown, a pile foundation construction device for bridge pier pipe piles includes: anchor spindle 1, floating platform 2, guide force reduction mechanism 3, percussion drilling rig 4, cable machine 5, steel cable 6 and steel casing 7, guide force force reduction mechanism Mechanism 3, percussion drilling rig 4 and cable machine 5 are set on the floating platform 2, the anchor spindle 1 is fixed on the river bed, the anchor spindle 1 and the floating platform 2 are connected by the cable machine 5 and the steel cable 6, and the steel casing 7 Installed in the guiding force-reducing mechanism 3; the floating platform 2 includes a plurality of buoyancy tanks...
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The invention relates to the field of bridge construction, in particular to a pile foundation construction device and a pile foundation construction method for a bridge pier tubular pier. The pile foundation construction device for the bridge pier tubular pile comprises an anchor, a floating type platform, a guide baffle mechanism, a percussion drill, a cable crane, a steel cable and a steel casing, wherein the guide baffle mechanism, the percussion drill and the cable crane are arranged on the floating type platform; the anchor is fixedly arranged on a river bed; the anchor and the floating type platform are connected through the cable crane and the steel cable; the steel casing is mounted in the guide baffle mechanism; the floating type platform comprises a plurality of floating boxes and a connecting frame; the floating boxes are connected with the connecting frame; the guide baffle mechanism comprises a guide derrick and a baffle steel pipe sleeve; and the steel pipe sleeve is arranged in the baffle steel pipe sleeve. The pile foundation construction device can effectively defuse and eliminate hydraulic fluctuation to guide the steel casing.
Description
technical field [0001] The invention relates to the field of bridge construction, in particular to a bridge pier pipe pile foundation construction device and a construction method thereof. Background technique [0002] The traditional bridge pier pipe piles in water use double-column steel pipe piles. The steel pipe piles are formed by impact drills. The impact drills are installed on the floating platform. After the floating platform is positioned, a steel casing is installed, and the lower end of the steel casing is temporarily embedded. In the impact pit on the river bed surface, if the upper end is rigidly connected with the floating platform, affected by the impact force of the drilling rig and the fluctuation of the water flow during the piling process, the floating platform as a whole drives the steel casing to undulate, and the lower end of the steel casing is in an active state. During the construction, a large amount of mud was lost rapidly, and the drilling constr...
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IPC IPC(8): E02D5/38
CPCE02D5/385
Inventor 段新鸽潘寿东潘建龙刘斌王勤荣王凤喜
Owner THE 3RD ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP CO LTD