CN201077983Y

CN201077983Y - Hollow pile of civil engineering works

Info

Publication number: CN201077983Y
Application number: CNU2007201146631U
Authority: CN
Inventors: 林原武
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-11
Filing date: 2007-09-11
Publication date: 2008-06-25
Anticipated expiration: 2017-09-11

Abstract

The utility model provides a hollow pile for the civil engineering, which is a porous hollow pile. A bigger hole in the hollow pile of the prior art is changed into a plurality of smaller holes (4), and the diameters and numbers of the holes can be combined arbitrarily according to different service applications. The utility model can be produced through a steel core-pulling and casting process. Compared with the prior art, the utility model has the advantage of simpler process and equipment. In addition, for pile s with the same-sized sections, as a plurality of hole walls are connected through hole walls like a honeycomb, the compression strength and sectional rigidity of the porous hollow pile are higher than the compression strength of a single-hole hollow pile.

Description

The civil engineering hollow pile

Technical field

The utility model relates to a kind of civil engineering hollow pile, belong to technical field of civil engineering.

Background technology

The precast reinforced concrete pile of using in civil engineering at present has solid and hollow two kinds.Though wherein solid pile has the compressive strength height, the advantage that rigidity of section is good, but it is with the big cost height of concrete amount, and also relative difficult is transported in the big lifting of weight, also because solid pile concrete body is bigger, be difficult to when prefabricated adopt the stream curing technology and can only adopt the natural curing technology, make that to make the duration longer.For overcoming above-mentioned deficiency, in the engineering of unnecessary use solid pile, transfer to use hollow pile.Hollow pile is low and lifting in light weight transportation is relatively easy than solid pile with the little cost of concrete amount, and hollow pile concrete body is thin can adopt the stream curing technology and shorten fabrication cycle.But original hollow pile is a hole, and the aperture of hollow hole is also bigger when the stake cross section is big slightly, will adopt aerated capsule to loose core or paper mold is loosed core and cast technology or the centrifugal technology of casting is made, and cost of manufacture and man-hour are still bigger.

Summary of the invention

At above-mentioned deficiency, the utility model is exactly the civil engineering hollow pile that will provide a kind of cost of manufacture lower.

The civil engineering hollow pile that the utility model provides, porose on cross section for the steel concrete column thing that cross sectional shape is identical everywhere, and its hole count has more than two.Combination arbitrarily can be done according to different purposes with hole count in the aperture.

The civil engineering hollow pile that the utility model provides, it is the porous hollow stake, promptly bigger hole in the prior art hollow pile is changed into a plurality of less holes, not only having kept the single hole hollow pile can be with advantages such as stream curing and weight are lighter, also because the aperture is less, more can adopt steel pipe to loose core and cast explained hereafter, loose core or the paper mold technology of loosing core has the simpler advantage of technology, the simple advantage of making apparatus then be arranged compared to the centrifugal technology of casting compared to aerated capsule.And, reusable as the steel pipe of hollow hole core rod, be higher than the hollow pile made from other technology for the hollow hole core rod makes axiality, parallelism, the isometrical degree equidimension quality of gained hollow hole with the steel pipe.Simultaneously, concerning the stake in onesize cross section that onesize cross section hollow hole is arranged, owing to there is hole wall to link to each other between a plurality of holes, as cellular, so the compressive strength of porous hollow stake and rigidity of section are greater than the single hole hollow pile.Because the lateral resisting intensity of the civil engineering hollow pile that the utility model provides is much larger than the single hole hollow pile, therefore especially be suitable for lateral resisting structure, as foundation pit supporting construction, its cost performance both had been better than the single hole hollow pile and also had been better than solid pile, through practical engineering application, can reduce foundation pit supporting construction cost about 20%.In a word, each side strength ratio single hole hollow pile is bigger than single hole hollow pile is lower for the cost of manufacture of the civil engineering hollow pile that provides of onesize the utility model.

The civil engineering hollow pile that the utility model provides adopts square-section and circular hollow hole, and to further facilitate making, the core in circular hollow hole can adopt common round steel pipe because the external mold of square-section uses dull and stereotyped getting final product.

The civil engineering hollow pile that the utility model provides, adopt square-section and circular hollow hole, and a middle separated time symmetric arrangement of rectangle is pressed in each hole, and pitch of holes equates on the direction parallel with rectangular edges, and balanced so that its resistance to compression of the layout that makes the hole, lateral resisting intensity reach maximum.

Description of drawings

Fig. 1 is the axial arrangement figure of the utility model one embodiment, among the figure: 1-master's muscle, 2-stirrup, 3-concrete body (concrete solid), 4-hollow hole;

Fig. 2 is the cross-sectional structure figure of Fig. 1, among the figure: 1-master's muscle, 2-stirrup, 3-concrete body, 4-hollow hole;

Fig. 3 is the cross-sectional view of another embodiment of the utility model, among the figure: 11-master's muscle, 21-stirrup, 31-concrete body, 41-hollow hole;

Fig. 4 is the cross-sectional view of the another embodiment of the utility model, among the figure: 12-master's muscle, 22-stirrup, 32-concrete body, 42-hollow hole.

The specific embodiment

1, as shown in Figure 1, 2, square hollow pile is arranged, the cross section length of side is 600mm, have by with 4 holes of the concentric square arrangement of stake, aperture 219mm, pitch-row 271mm.This hollow pile be by the reinforcing cage that constitutes with main muscle 1 and stirrup 2 serve as key be that core is cast with concrete and formed in Fang Mo and with 4 steel pipes, the gained hollow pile is for there being 4 holes 4 longitudinally in concrete body 3.

2, square hollow pile is arranged, 3 rows, 3 row circular holes are wherein arranged.

4, as shown in Figure 3, rectangular hollow pile constitutes reinforcing cage by main muscle 11 and stirrup 21, and a pair of hollow hole 41 is arranged in the concrete body 31.Stake cross section 400mm * 600mm, aperture 219mm.

5, as shown in Figure 4, rectangular hollow pile constitutes reinforcing cage by main muscle 12 and stirrup 22, and two row, 4 row hollow holes 42 are arranged in the concrete body 32.Stake cross section 600mm * 1000mm, aperture 168mm, two pitch-row 271mm in the ranks, pitch-row 228mm between 4 row.

Claims

1. a civil engineering hollow pile is porose on cross section for the steel concrete column thing that cross sectional shape is identical everywhere, it is characterized in that its hole count has more than two.

2. civil engineering hollow pile as claimed in claim 1, the cross section that it is characterized in that stake are that the cross section of rectangle and hollow hole is circle.

3. civil engineering hollow pile as claimed in claim 2 is characterized in that the middle separated time symmetric arrangement of each hole by the stake square-section, and pitch of holes equates on the direction parallel with rectangular edges.