Highway crash barrier floating type hydraulic pile driving and pile pulling device

Abstract

The invention provides a highway crash barrier floating type hydraulic pile driving and pile pulling device and belongs to crash barrier pile driving and pile pulling hydraulic machinery. Three pile pulling hydraulic oil cylinders of the pile driving and pile pulling device are distributed in a triangular shape; the bottom of each pile pulling hydraulic oil cylinder is provided with pile pulling hydraulic oil cylinder supporting legs; an opening type box body is connected between two sides of each hydraulic oil cylinder; two end faces of the opening type box body are respectively connected with a locking hydraulic oil cylinder and a locking device; the locking device is a locking chuck or an opening claw and the opening clamp can be locked; a floating mechanism guide column is located at one side of a third pile pulling hydraulic oil cylinder; a mechanism hanging plate is connected with the floating mechanism guide column; a hydraulic pile driving hammer clamping plate is connected with the opening type box body; one end of the hydraulic pile driving hammer clamping plate is connected with a hammer body of a hydraulic pile driving hammer; and the bottom of the hammer body is connected with a hammer head of the hydraulic pile driving hammer. The highway crash barrier floating type hydraulic pile driving and pile pulling device has the advantages that the floating type hydraulic pile driving and pile pulling device is simple in structure and low in construction cost. Pile driving and pile pulling are integrated. A broken pile which is completely broken below a ground plane can be conveniently, rapidly and vertically pulled out in a non-digging manner and a new pile can be vertically pegged in.

Description

technical field [0001] The invention relates to an anti-collision guardrail driving and pulling hydraulic machine, in particular to a floating hydraulic pile driving and pulling device for the road anti-collision guardrail. technical background [0002] After the construction of high-grade highways is completed and put into use, the anti-collision barriers are often deformed and broken. When the column is severely deformed and cannot be corrected or broken below the road surface, it is very difficult to replace and repair. The traditional construction methods are: 1. When the guardrail column breaks below the road surface, the road shoulder is excavated and welded by gas cutting. The disadvantage is that the strength of the weld cannot be guaranteed. 2. Abandon the original piles and change the original pile spacing and re-drive new piles; after repairing, it cannot meet the "Code for Design of Highway Traffic Safety Facilities" (JTG D81-2006) and "Technical Specifications f...

AI Technical Summary

Problems solved by technology

[0002] After the construction of high-grade highways is completed and put into use, the anti-collision barriers are often deformed and broken. When the columns are severely deformed and cannot be corrected or broken below the road surface, it is very difficult to replace and repair

The traditional construction method is: 1. When the guardrail column breaks below the road surface, the road shoulder is excavated and welded by gas cutting. The disadvantage is that the strength of the weld cannot be guaranteed.

2. Abandon the original piles and change the original pile spacing and re-drive new piles; after repairing, it cannot meet the "Code for Design of Highway Traffic Safety Facilities" (JTG D81-2006) and "Technical Specifications for Construction of Highway Traffic Safety Facilities" (JTG F71-2006) Regarding the requirements of ensuring safety, smooth lines, and beautiful appearance; 3. Using self-made gantry and general-purpose jacks or hoists for pile extraction operations, the construction is difficult, labor-intensive, long-term and low-efficiency

Its disadvantages are: 1. It cannot float vertically up and down freely; 2. It cannot pull out the broken pile below the ground level without excavation.

[0004] The existing high-grade highway anti-collision guardrail piling machine does not fully have the pile pulling efficiency, and cannot adapt to the emergency repair work of high-grade highways

[0005] Due to the hard roadbed of high-grade highways, it takes hundreds of kilonewtons of force to pull it out. According to published papers, theoretical calculations require about 209.3 kilonewtons of force. Through actual verification, some require nearly 300 kilonewtons of force to pull out. , currently there is no equipment that can hold the broken pile and pull it out effectively

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