CN102720191A

CN102720191A - Spiral pile

Info

Publication number: CN102720191A
Application number: CN201210130680XA
Authority: CN
Inventors: 张恩理; 袁海凌
Original assignee: HUNAN TLNZ SOLAR TECHNOLOGY Co Ltd
Current assignee: HUNAN TLNZ SOLAR TECHNOLOGY Co Ltd
Priority date: 2012-04-29
Filing date: 2012-04-29
Publication date: 2012-10-10

Abstract

Disclosed is a spiral pile, with which the problems of existing piles such as poor drawing force, inadequate lateral shearing resistance and insufficient lateral resistance to dynamic load are overcome. The spiral pile comprises a tubular body which is provided with holes or slots or openings on its tube wall and is provided with helical blades on its outer wall. The spiral pile is mainly used for fixing foundation piles and the like.

Description

Spiral pile

Technical field

The present invention relates to a kind of construction work and use pile, especially spiral pile.

Background technology

At present, there is following problem in domestic and international existing screw pile:

1, generally can not be anticorrosive, as in Tibet, salt-soda soil such as Qinghai, Xinjiang and some soil contains the place of soda acid;

2, in the soft place of soil, phenomenons such as pulling capacity is not enough, the side direction shearing resistance is not enough, the ability anti-dynamic loading of side direction is not enough can appear in screw pile;

3, in the relatively poor place of soil condition, for various performance indications and the monolithic stability degree that increases screw pile, existing screw pile generally need increase additional member such as connecting rod between screw pile, though performance increases, cost strengthens greatly;

4, existing pile foundation construction generally all can large-area destruction surrounding enviroment, and work progress brings bigger noise pollution around can giving.

Summary of the invention

The purpose of this invention is to provide a kind of spiral pile.

The technical solution adopted for the present invention to solve the technical problems is: comprise tubular body, the tube wall of tubular body porose or groove or mouth are referred to as material leaking hole.The tubular body outer wall has helical blade, and the blade diameter size gets into according to screw pile that the soil is porous, and degree decide, and soil property is loose more, and diameter is big more, and helical blade is classified by cross sectional shape has triangle, rectangle, arc, thread-shaped etc.

Further, also comprise the slurry injection device, be used to inject settable slurries.

Further, also comprise linkage, be used to connect said tubular body and said fluid injection device, form the connection of outside seal.

Further, tubular body is established contiguous block or flange, is used for clamping device connection or screw rod and connects.

Further, the preferred input pipe of slurry injection device.

Further, input pipe is established contiguous block or flange.

Further, the preferred clamping device of linkage also can be connected and sealed with the mode that screw rod adds flange.

Further, the head that tubular body is in depth held diminishes gradually, is pointed or warhead form.

The invention has the beneficial effects as follows, compare the stake of industry inside spin, the screw pile of this patent is adapted to promote the scope of application of screw pile in the pile foundation engineering of multiple geotechnical structure; Because tubular body wall is porose or groove or mouth; The slurry that injects tubular body forms separation layer after the hole is oozed out; The existing anticorrosive effect of this separation layer; Increase the application life of screw pile, increased the anti-dynamic loading ability of pulling capacity, load carrying power, horizontal torsion, side direction shearing resistance, side direction, shock-proof ability, system's stable degree of screw pile again; And construction technology is simple, and short construction period, cost are low.

The present invention should can be used for the photovoltaic application system, comprises from net power station, the power station of being incorporated into the power networks, wind and light complementary road lamp, communication base station, solar energy water pumping system etc.; Also can be applicable to the occasion of the firm pile foundations of needs such as quick board house, street lamp, billboard, road sign, garden fence.

Description of drawings

Fig. 1 is a sketch map of the present invention.

Among the figure, 100. screw piles, 101. material leaking holes, 102. helical blades, 103. screw pile contiguous blocks, 200. clamping devices, 201. handles, 300. input pipes, 301. input pipe contiguous blocks.

The specific embodiment

By Fig. 1, tubular body is a screw pile 100, and there is helical blade 102 outside; Inside is hollow, and the tube wall of screw pile 100 porose or groove or mouth are referred to as material leaking hole 101; May also be referred to as bypass channel or overfall, material leaking hole 101 sizes are confirmed according to screw pile diameter and tubular body desirable strength.After screw pile is squeezed into, be that clamping device 200 and injection device are input pipe 300 through linkage; Corresponding slurry suppressed pour in the screw pile 100; Screw pile 100 inner slurries can pass through sidewall material leaking hole 101, are having under the condition of pressure, constantly are penetrated into outside screw pile 100 sidewalls; Interior lateral wall attached to screw pile; Between screw pile and soda acid soil, corrosion gas-liquid, form the separation layer irregular and contact area is bigger, increased screw pile 100 deadweight and with the adhesion of soil, and can be well anticorrosive.In the process of perfusion slurry, according to the slurry volume that screw pile 100 diameter and working region need be permeated, each screw pile 100 is carried out the constant volume perfusion, thereby reach the designing requirement that combines of screw pile and soil.

Present embodiment screw pile 100 sidewall material leaking holes 101 adopt the rotation direction with the screw pile spiral to prevent the fluting design that earth screws in, can not occur because of sidewall material leaking hole 101 in the downward screw-in process by the sandy soil phenomenon of blocking.For the volume that increases the perfusion slurry with prevent to pour into that slurry overflows from native surface in the slurry process, what of grouting amount as required increase no-spill precast at the soil table and mix clay structure.

The present embodiment settable slurries adopts ordinary concrete, and cement is as gel rubber material, and sand, masonry gather materials; Cooperate by a certain percentage with water, get through stirring, during slip casting, need a linkage, present embodiment is a quick clamping device 200, links to each other with screw pile 100 ground surface end.Upper jaw and input pipe contiguous block 301 that lower jaw and the screw pile contiguous block 103 that steps up device 200 fastened, will step up device 200 fasten; Shake handle 201 then; Lever principle through handle 201; Close up clamping device 200 and make its top and the bottom chuck, thereby reach locking effect to the position, dead point.

The mode that connection between input pipe 300 and the screw pile 100 also can adopt flange to add the screw rod screw realizes.

Screw pile after the pouring has that pulling capacity height, strong, the horizontal torsion of load carrying power are strong, the side direction shearing resistance is high, the anti-dynamic loading ability of side direction is strong, the shock-proof ability is strong, steadiness good, construction technology is simple, work progress environmental protection, short construction period, low cost and other advantages.

Claims

1. spiral pile is characterized in that: comprise tubular body, the porose or groove of the tube wall of said tubular body or mouthful, said tubular body outer wall has helical blade.

2. a kind of spiral pile according to claim 1 is characterized in that: also comprise injection device, be used to inject settable slurries.

3. a kind of spiral pile according to claim 2 is characterized in that: also comprise linkage, be used to connect said tubular body and said injection device, form the connection of outside seal.

4. a kind of spiral pile according to claim 1, it is characterized in that: tubular body is established contiguous block or flange.

5. a kind of spiral pile according to claim 2 is characterized in that: said injection device is an input pipe.

6. described a kind of spiral pile according to claim 5, it is characterized in that: said input pipe is established contiguous block or flange.

7. described a kind of spiral pile according to claim 3, it is characterized in that: linkage is a clamping device.

8. described a kind of spiral pile according to claim 1, it is characterized in that: the head that said tubular body is in depth held diminishes gradually, is pointed or warhead form.