Pile foundation safety device for constructional engineering

A safety device and construction engineering technology, applied in the direction of construction, building components, protection devices, etc., can solve the problems of steel sheet pile damage, large manpower and material resources, inaccurate positioning, etc., to improve the efficiency of the project, reduce the physical burden, avoid The effect of construction work

Inactive Publication Date: 2021-09-03
华新建工集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of assembling circular steel sheet piles at sea, a lot of equipment is required and the operation is complicated. The splicing process is accompanied by technical problems such as inaccurate positioning and the inability of the steel sheet piles to be closed at the end. Therefore, the large-diameter circular steel sheet pile cofferdam at sea is built on land. The steel sheet piles are assembled into a drum shape and then transported to the sea. Compared with the offshore construction, the land construction is easier and simpler, but the steel sheet piles are difficult to lift when they are assembled and transported to the sea. The existing splicing process will The guide frame is welded first, and the steel sheet pile is welded to the guide frame, and the steel sheet pile is transported to the sea through the support of the guide frame. Before piling, the guide frame needs to be removed, and the circular purlin support is used after the piling is completed. The operation is complicated. It is cumbersome and consumes a lot of manpower and material resources, or driving the guide frame and steel sheet piles into the seabed together, which will cause damage to the steel sheet piles; and people working in the deep sea are often accompanied by the risk of ocean current impact, as well as excessive pressure in the deep sea. cause safety problems to human body

Method used

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  • Pile foundation safety device for constructional engineering
  • Pile foundation safety device for constructional engineering
  • Pile foundation safety device for constructional engineering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, the technical solution it solves is a pile foundation safety device for construction engineering, including a plurality of vertical rings 1 and a plurality of vertical support columns 2, and the plurality of rings 1 are evenly distributed vertically , a plurality of support columns 2 are evenly distributed along the circumferential direction of the ring 1, any support column 2 slides through the plurality of rings 1 in sequence in the vertical direction, and there are multiple clamping mechanisms evenly distributed on the upper circumference of the ring 1, and multiple clamping mechanisms The mechanism corresponds to a plurality of support columns 2 one by one, and the sliding of the support column 2 on the ring 1 is limited by the clamping mechanism; the lowermost ring 1 among the plurality of rings 1 is connected with the first support rod 3 , and the second A support rod 3 is arranged along the front and back directions, and a vertical cylindrical airtig...

Embodiment 2

[0035] Embodiment 2. On the basis of Embodiment 1, the clamping mechanism includes a snap ring 18, a first wedge block 19, a first through hole 20, and a second sliding groove 21. The first through hole 20 vertically runs through the circle The ring 1, the support column 2 pass through the first through hole 20, the snap ring 18 is sleeved on the support post 2, the snap ring 18 is located in the first through hole 20, and the diameter of the snap ring 18 is slightly smaller than the diameter of the first through hole 20 , the second chute 21 is opened in the ring 1, and the end of the second chute 21 close to the snap ring 18 communicates with the first through hole 20; the end of the first wedge block 19 is close to the snap ring 18, and the end of the first wedge block 19 The wedge-shaped end is close to the snap ring 18, and the first wedge-shaped block 19 is placed above the snap ring 18. A first spring 22 is connected between the end of the first wedge-shaped block 19 awa...

Embodiment 3

[0036] Embodiment 3, on the basis of Embodiment 2, the upper end of the support column 2 is covered with a solid torus 25, the shape and size of the torus 25 are the same as that of the snap ring 18, and the torus 25 is coaxial with a plurality of The distance between the uppermost snap rings 18 in the snap rings 18 is A, the distance between the coaxial adjacent snap rings 18 is B, and the value of A is the same as the value of B; the first wedge block 19 is far away from the snap rings One end of 18 is connected with a first piston 26, and the first piston 26 is sealed and slid in the second chute 21, and the end of the slider 23 away from the snap ring 18 is connected with a second piston 27 via a rod, and the second piston 27 is in the second sliding groove. Seal sliding in the groove 21; the second chute 21 is connected with a partition 28, the partition 28 is located between the first piston 26 and the second piston 27, the second chute 21 is connected with a second magne...

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Abstract

The invention discloses a pile foundation safety device for constructional engineering. The pile foundation safety device comprises a plurality of circular rings and a plurality of supporting columns; first supporting rods are connected to the circular rings, second supporting rods are connected to the first supporting rods through transmission structures, and supporting bodies are connected to the second supporting rods. The spliced circular steel sheet piles are supported through the supporting bodies, the spliced circular steel sheet piles are conveniently and effectively hoisted and transported to the sea, the supporting columns, the circular rings, the supporting bodies and a shear shank play a role in supporting the steel sheet piles in deep sea, the risk that the steel sheet piles are bent and broken under the action of deep sea water pressure is reduced, contraction of the supporting bodies does not affect follow-up construction of the steel sheet piles, the working efficiency is greatly improved, moreover, construction operation of people in the deep sea environment is avoided, the body burden of constructors is reduced, and the operation space of later cofferdam construction cannot be affected due to simple and detachable connection of part of structures.

Description

technical field [0001] The invention relates to the field of bridge pile foundations, in particular to a pile foundation safety device for construction engineering. Background technique [0002] With the improvement of comprehensive national strength, more and more sea-crossing bridges have been built or started. In the construction of sea-crossing bridges, the bridge pile foundation is an important part of the bridge. The biggest difference between sea-building bridges and land-building bridges is that there is water The steel sheet pile cofferdam is the most widely used water cofferdam construction method, and the circular steel sheet pile cofferdam, compared with other shapes of cofferdams, has the characteristics of balanced force and less material consumption, and the cofferdam has no inner support , Large internal operating space. [0003] In the process of assembling circular steel sheet piles at sea, a lot of equipment is required and the operation is complicated. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D13/00E02D31/00E05F15/77E06B7/23E06B7/28
CPCE02D13/00E02D31/00E05F15/77E06B7/23E06B7/28
Inventor 张君明刘礼春林柏仁徐洋钧丁志明
Owner 华新建工集团有限公司
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