CN203296047U

CN203296047U - Centering guide for driving underwater anchor pile

Info

Publication number: CN203296047U
Application number: CN2013200743448U
Authority: CN
Inventors: 古国维
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2013-11-20
Anticipated expiration: 2023-02-07

Abstract

The utility model discloses a centering guide for driving an underwater anchor pile, and relates to an auxiliary component for underwater foundation construction. The centering guide for driving the underwater anchor pile is characterized in that a guide pipe with a horn mouth and three or more supporting leg pipes are assembled and welded through connection rods to form a rigid space frame. The outer side of the rigid space frame, a top plate and a bottom plate are sealed through steel plates to form a box body; vent holes are formed in the top plate of the box; holes are formed in the bottom plate; the increased weight generated after water enters the box body is helpful in pressing the supporting leg pipes of the centering guide into a soil layer, and meanwhile because weight adjustment press block guide rods are welded to the top surfaces of the supporting leg pipes, the centering guide can conduct leveling through weight adjustment press blocks to guarantee verticality of the guide pipe. The centering guide for driving the underwater anchor pile achieves the purposes that the underwater anchor pile is centralized in position in the driving process, and underwater anchor pipe driving is simple, low in cost and good in reliability.

Description

Anchoring pile is squeezed into centralizer under water

Technical field

Anchoring pile is squeezed into centralizer and is related to the auxiliary part of a kind of underwater foundation construction under water, belongs to the ocean engineering field.

Background technology

Pile foundation is water conservancy, the main pattern of harbour and all kinds of structure bases of ocean engineering, development along with the seawater cage culture industry, the anchoring system of net cage is also widely applied pile foundation, on specialty to mooring floating production system waterborne, all kinds of floating platforms, chinampa, net cages etc., be referred to as anchoring pile so that uplift resistance to be provided as main pile foundation.The installation of anchoring pile mainly contains two kinds of forms at present, the one, the pile driving barge by special use is the same with the ground civil engineering to be rammed and squeezes into or hydraulic pressure is squeezed into pile body, owing to employing special-purpose pile works ship, the auxiliary of crane barge arranged again, add that marine weather window can not guarantee to work continuously, often squeeze into a pile expense all high high, can only be applied to marine petroleum development with high investment, bridge or port works.another kind of suction anchoring pile by growing up decades, have from the function of installing, need not pile driving barge, but application is subject to the restriction of seabottom geology condition, grey hermatolith as the Nansha Islands, Hainan, Guangxi, the irony layer of sand in the marine sites such as west of Guangdong Province Yuexi, because can not leaning on suction (negative pressure), the hard suction anchor of quality sinks smoothly, at shallow waters, because hydraulic pressure is little also inapplicable, my patent CN201962696U utility model title of publicity: the underwater cup-shaped foundation that helps base heavy and that reinforce to arrange with sluicing, help heavy the solution in the not enough problem of shallow waters suction anchor hydraulic pressure by washing away, but still can not solve in Nansha Islands ash hermatolith GEOLOGICAL APPLICATION problem.So along with the fast development of ocean development, the utmost point need be researched and developed a kind of conventional pile foundation form of breaking through, this pile foundation should be simple with sea or installation waterborne, and cost is low, good reliability, and it is principal character that the skyer pull out force is arranged.

high in order to overcome conventional driving into type pile foundation operating cost, the application of Self-sinking type suction pile is subjected to the deficiency of seabottom geology condition restriction, reach and install simply, cost is low, good reliability, the purpose that high uplift resistance is arranged, the inventor herein has researched and developed a kind of pipe with small pipe diameter stake of easily squeezing into, pile top is taper, pile body is opened injected hole regularly, the stake upper end arranges and coordinates steam hammer to squeeze into and guide pipe and the shrouding of slip casting, stake is squeezed into laggard horizontal high voltage and is annotated high-intensity cement for construction in sea slurries, slurry infiltration forms the compound pile that is several times as much as caliber together with stake, thereby greatly improved uplift resistance, particularly at grey hermatolith layer and ferruginous sandstone layer, pile pipe is consolidated with it by mortar, be anchored on this firm hard formation like pile tube, its ultimate pullout capacity is almost near the stretching Strong degree of pipe shaft.Because the utility model is fit to squeeze into entering the formula steam hammer, be that steam hammer is squeezed into stake, so the piling cost is extremely low, its distinctive slip casting function has guaranteed its uplift resistance and as the reliability of pulling resistant anchor pile, the enforcement of this patent is to water conservancy, harbour, ocean engineering, the field of the application pile foundation engineerings such as sea-farming is value of the utmost importance.In order to implement this new technology, underwater pile driving is with the stake righting important prerequisite that just becomes in place, traditional method is in place by the pile frame righting of pile driving barge, so just can not break through the costly bottleneck of operation on the sea, so must develop supporting construction tool and technique, solve the stake righting problem in place of underwater pile driving, realize that anchoring pile is squeezed into simply under water, cost is low, the purpose of good reliability.

Patent documentation:

1 is authorized notification number CN2578521Y utility model title: hanging well drilling basic disc of central well.Inventor: ancient country's dimension

Summary of the invention,

In order to solve underwater pile driving with the problem of stake righting, realize that anchoring pile is squeezed into simply under water, cost is low, and the purpose the technical solution of the utility model of good reliability is:

The first step is copied the CN2578521Y of publicity patent utility model title: hanging well drilling basic disc of central well becomes space rigid with three or three with the effective bar assembly welding that links of upper supporting leg with the bell-mouthed guide pipe of anchoring pile band, for better stability is arranged, the supporting leg pipe has constant slope for well, certainly also can be vertical, separately flutterring supporting leg pipe number should be less than 3;

This space rigid of second step outside and top board, base plate seals with steel plate, forms a casing, the roof box pore that begins to rehearse, base plate perforate;

The 3rd step supporting leg pipe fitting end face is welded with transfers weight piece guide rod.

After anchoring pile is under water squeezed into centralizer and hung onto and specify sea bed, pour into by deadweight and seawater the ballast that casing forms centralizer supporting leg pipe is pressed into soil layer, thereby can stably resist the sidesway that ocean current causes.Generally sea bed is all extremely smooth, and it is all extremely even that soil property distributes, and can not occur changing in so among a small circle at the centralizer bearing surface, but, for dealing with accident, can add accent weight piece way by supporting leg pipe fitting end face, solution centralizer out of plumb problem.

Anchoring pile inserts and to be with bell-mouthed guide pipe under water, and the righting of anchoring pile nature, get final product injection this moment, anchoring pile depth of drive or during near the guide pipe horn mouth, the centralizer of can slinging changes next pile construction over to.

As finding out that from upper explanation this is workable with novel advantage surely, needn't employ type marine guidance piling ship, only need boats and ships of transformation, install coupling elevating capacity gin pole and get final product, thereby greatly reduce the marine guidance piling expense.

Description of drawings

Below in conjunction with 3 supporting leg pipes under water anchoring pile squeeze into centralizer and be illustrated.

Fig. 1 be 3 supporting leg pipes under water anchoring pile squeeze into the centralizer structure floor map;

Fig. 2 is the axonometric drawing schematic diagram;

Fig. 3 is the guide-tube structure sectional drawing;

Fig. 4 transfers weight piece guide rod organigram.

Wherein: 101 conduits, 102 conduit horn mouth 103 guide strip 104 stiffeners, 2 supporting leg pipes, 3 supporting leg pipe conical head .4 supporting leg pipes and conduit upper strata contact bar, and 5 supporting leg pipes and conduit lower floor contact bar, contact bar in upper strata between 6 supporting leg pipes, lower floor's contact bar between 7 supporting leg pipes, 8 end face shroudings, 9 bottom surface shroudings, 10 side seal boards, 11 transfer weight piece guide rod, 12 hangers, 13 advance/drain hole, 14 steam vents, 15 supporting leg pipe top boards, 16 supporting leg pipe top board stiffener A, 17 supporting leg pipe top board stiffener B, 18 transfer the weight piece.

The specific embodiment

Now take 3 supporting leg pipes under water anchoring pile squeeze into centralizer as example, specific implementation method is described.

At first cut each member by figure, first made conduit horn mouth 102, conduit 101 is welded with upper end guide strip 103 and stiffener 104, then conduit horn mouth 102 and conduit 101 is burn-on:

Supporting leg pipe 2 is made and is,, first supporting leg pipe top board 15 perforates that cut by figure, inserts and transfers weight piece guide rod 11, welds upper 17 supporting leg pipe top board stiffener B, then with the welding of supporting leg pipe, then the 16 supporting leg pipe top board stiffener A that burn-on, hanger 12;

between guide pipe and supporting leg pipe the up and down two layers by contacting bar 4, 5 mutually weld after, then between the supporting leg pipe, two layers of up and down are welded mutually by contact bar 6.7, side adds shrouding 5, shrouding can be put to be welded in and link on bar 6.7, also available self-tapping screw riveting is linking on bar 6.7, but being processed with end face shrouding 8 spot welding of steam vent 14 or self-tapping screw is riveted on and links bar 4, on 6, but being processed with equally bottom surface shrouding 9 spot welding of perforate 13 or self-tapping screw is riveted on and links bar 5, on 7, after centralizer welding is completed by service life and owner's requirement, select whether to carry out derusting by sandblasting and spray corrosion resistant coating.

Claims

1. anchoring pile is squeezed into centralizer under water, it is characterized in that being with bell-mouthed guide pipe to become space rigid with three or three with the effective bar assembly welding that links of upper supporting leg, this space rigid outside and top board, base plate seals with steel plate, form a casing, the roof box pore that begins to rehearse, base plate perforate.

2. according to claim 1 anchoring pile is under water squeezed into centralizer, it is characterized in that supporting leg pipe fitting end face is welded with to transfer weight piece guide rod.

3. according to claim 1 anchoring pile is under water squeezed into centralizer, it is characterized in that the supporting leg pipe is vertical or gradient.