CN104831764A

CN104831764A - Reinforcing structure of facility foundation on sand near beach

Info

Publication number: CN104831764A
Application number: CN201510272988.1A
Authority: CN
Inventors: 林镇周; 彭孝雄; 高沃辉; 蔡天机
Original assignee: Co Ltd Of Energy Source In China Construction Group Guangdong Electric Power Engineering Bureau
Current assignee: Co Ltd Of Energy Source In China Construction Group Guangdong Electric Power Engineering Bureau
Priority date: 2015-05-26
Filing date: 2015-05-26
Publication date: 2015-08-12

Abstract

The invention discloses a reinforcing structure of a facility foundation on sand near a beach. The reinforcing structure comprises guard piles constructed on the periphery of the facility foundation and surrounding the portions, facing towards the waves, of the facility foundation. The guard piles are of a secant pile structure formed by mutually holding a plurality of pile foundations. Closed arc crown beams are constructed on the tops of the guard piles, and the closed arc crown beams and the pile foundations of the secant piles are connected into a whole. The guard piles of the secant pile structure can encircle foundation sand of the facility foundation on the inner sides of the secant piles, prevent the waves from scouring the facility foundation and prevent the foundation from being undercut, therefore, vertical bearing force can be guaranteed, the stability of the foundation can be maintained, and collapse of the foundation can be prevented reliably.

Description

The ruggedized construction on facility basis on a kind of sand ground that pulls in shore

Technical field

The present invention relates to the building on the area, sandy beach on bank such as seashore, riverside and the ruggedized construction of equipment Foundations.

Background technology

For various reasons, the area, sandy beach on seashore and river bank, is often provided with some facility such as building and main equipment, for keeping the stable of these facilities, usually can arrange the pile foundation in buried sandy beach in the bottom of these facilities.But, because pile foundation is embedded in sandy beach, its foundation soil is sandy soil, at bad weathers such as chance typhoons, when there is billow, the pile foundation of these facilities is easily subject to washing away of wave, cause a large amount of sand-like foundation soils in the scour process of billow, following sea can run off, pile foundation is locally emptied, foundation soil is reduced the restraint forces of pile foundation; Simultaneously, in scour process, wave water can infiltrate basis sand-like foundation soil around, and make pile foundation be immersed in water, water is to the buoyancy of pile foundation, thus the effective unit weight of pile foundation is reduced, be equivalent to lighten, cause the resistance to tipping moment of pile foundation to reduce, once resistance to tipping moment is not enough, toppling of facility will be there is, there is great potential safety hazard.

For the problems referred to above, can reinforce the basis of facility on the sand ground that pulls in shore, to avoid toppling of facility.At present, for the underpin technology of the sand ground facility that pulls in shore, mainly contain square technology of just building, caisson technology, put and turn round king's block technology and stacking large geotechnical cloth sand pocket technology etc. four kinds.

Just building square technology, between its square, overall performance is poor, cannot resist the impact of larger wave, in typhoon season, when wave exceedes some strength, is just building square and there is risk of collapsing.

Caisson technology, the construction period is long, and construction cost is high, and inevitably there is gap between caisson, and foundation bottom ground still may be washed in a pan empty by typhoon wave local, still there is above-mentioned risk.

Put and turn round king's block technology, the construction period is long, need configure large-scale overweight machinery when ornaments turn round king's block; After completion, turn round between king's block and there is a large amount of space equally, still there is local and wash in a pan empty risk in typhoon season blower foundation ground, still there is potential safety hazard.

Stack large geotechnical cloth sand pocket technology, poor durability, stormy waves is comparatively large, when flooding sand pocket, sand pocket existed drift risk, still safe not.

Above-mentioned four kinds of reinforcing techniques, all alleviation to a certain degree can only empty the problem of toppling caused, all fail thoroughly to solve the problem, still there is gene basis and empty caused risk of toppling.

Summary of the invention

The present invention is intended to overcome above-mentioned prior art defect, provide a kind of can thoroughly solve pull in shore that facility basis, sandy beach is emptied, the ruggedized construction on facility basis on the sand ground that pulls in shore of problem of toppling.

The ruggedized construction on facility basis on the sand ground that pulls in shore of the present invention, comprise construction in the periphery on facility basis, by the fender pile surrounded outside unrestrained position on facility basis, described fender pile is that multiple pile foundation is engaged formation interlocking pile structure each other, has the closed circular arc Guan Liang be connected as a single entity with the pile foundation of all interlocking piles in the construction of the top of fender pile.

The ruggedized construction on facility basis on the sand ground that pulls in shore of the present invention, periphery, its basis at facility be provided with by enclose towards the outsourcing of wave position, the fender pile of interlocking pile structure that is configured to by multiple pile foundation be engaged each other, the fender pile of interlocking pile structure can stop wave washing away facility basis, and wave can only impact the outside at interlocking pile; Inside interlocking pile, the sandy soil of the basic internal of facility are then held tightly in inside by annular interlocking pile, by the restriction of interlocking pile, sandy soil not only between facility basis and interlocking pile can not run off, and the sandy soil between each pile foundation of basic internal also can not run off, it well can ensure the constant of facility basis vertical bearing capacity, thus maintain the steadiness on basis, reliably avoid toppling of basis, thoroughly solve the problem emptied, topple in facility basis, sandy beach of pulling in shore.In addition, the fender pile of interlocking pile structure can also avoid wave water to enter into foundation soil, basis can not be caused to be soaked, thus can not affect the effective unit weight on basis, thus avoid the reduction of the resistance to tipping moment therefore caused during waviness.In addition, the closed circular arc Guan Liang be connected as a single entity with all interlocking pile pile foundations that interlocking pile structural top is arranged, can make upper end freely interlocking pile structure force way by cantilevered force way be converted into by circular arc Guan Liang retrain approximate simply-support force way, closed circular arc hat beam can form hoop for barrel effect to all pile foundations of interlocking pile structure, make fender pile overall stressed more stable, when identical fender pile structure, its footpath can be less, thus can save material cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of the ruggedized construction on facility basis on the sand ground that pulls in shore of the present invention.

Detailed description of the invention

As Fig. 1, comprise construction in the periphery on facility basis 1, by the fender pile surrounded outside unrestrained position on facility basis, described fender pile is that multiple pile foundation 21 is engaged formation interlocking pile structure 2 each other, has the closed circular arc be connected as a single entity with the pile foundation of all interlocking piles to be preced with beam 3 in the construction of the top of fender pile.

Described protection dress can 360 degree entirely surround facilities basis, the pile foundation 360 degree of its interlocking pile structure surrounds facility basis entirely, protects reliably to basis.

The pile foundation of the interlocking pile structure of fender pile also can only surround wave position, in the position vacancy that wave cannot arrive, its can when effectively prevent foundation soil run off, basis empty, reduce material cost, as Fig. 1.

Described fender pile is the interlocking pile structure be alternately engaged by plain concrete stake and reinforced concrete pile.

Claims

1. the ruggedized construction on facility basis on the sand ground that pulls in shore, it is characterized in that: comprise construction in the periphery on facility basis, by the fender pile surrounded outside unrestrained position on facility basis, described fender pile is that multiple pile foundation is engaged formation interlocking pile structure each other, has the closed circular arc Guan Liang be connected as a single entity with the pile foundation of all interlocking piles in the construction of the top of fender pile.

2. the ruggedized construction on facility basis on the sand ground that pulls in shore according to claim 1, is characterized in that: described fender pile is the interlocking pile structure be alternately engaged by plain concrete stake and reinforced concrete pile.