CN203487531U - Pre-stressed concrete pile and supporting pile wall - Google Patents
Pre-stressed concrete pile and supporting pile wall Download PDFInfo
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- CN203487531U CN203487531U CN201320522155.2U CN201320522155U CN203487531U CN 203487531 U CN203487531 U CN 203487531U CN 201320522155 U CN201320522155 U CN 201320522155U CN 203487531 U CN203487531 U CN 203487531U
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Abstract
The utility model discloses a pre-stressed concrete pile and a supporting pile wall. The pre-stressed concrete pile comprises at least one pre-stressed concrete component, the section of each pre-stressed concrete component is dumbbell-shaped, each pre-stressed concrete component comprises upper flanges, lower flanges and a web plate, the upper flanges and the lower flanges are symmetrically arranged, the web plates are arranged among the upper flanges and the lower flanges, a stress steel bar, a pre-stressed tendon and a stirrup are arranged inside each pre-stressed concrete component, and the supporting pile wall comprises a plurality of soil-cement mixed piles and pre-stressed concrete piles arranged in the soil-cement mixed piles. By the mode, the pre-stressed concrete pile has fine flexural rigidity, can reduce engineering cost and is convenient in construction on the premise of ensuring supporting safety and reliability of a foundation pit, and the supporting pile wall has fine flexural rigidity and lateral sway resistance.
Description
Technical field
The utility model relates to all construction projects fields such as building, municipal administration, traffic, water conservancy, electric power, industry, particularly relates to a kind of prestressed concrete pile and supporting piling wall.
Background technology
Base pit engineering technical scheme is mainly considered from aspects such as security reliability, economic rationality, difficulty of construction, construction periods.Many to the application of the stake of SMW engineering method, castinplace pile, diaphragm wall in China coast periphery soft clay area.
Shaped steel Soil-cement Wall, is commonly referred to SMW engineering method, is a kind of compound gear soil waterproof structure that shaped steel forms that inserts in the triaxial cement mixing pile of socket continuously.Utilize three axle agitation pile rigs to cut earth in former stratum, rig leading portion low pressure is injected cement grout simultaneously, fully stir and form the cement earth pile row formula barricade that water-resisting property is higher with the chopping soil body, before cement grout not yet hardens, insert a kind of Construction Technique of Underground Works of shaped steel.The stake of SMW engineering method grows up based on Deep Mixing Pile Construction, and this structure has been given full play to the mechanical characteristic of cement-soil mixture and shaped steel, there is economy, the duration is short, water-resisting property is strong, to features such as surrounding environment influence are little.Shaped steel Soil-cement Wall enclosed structure, after basement construction completes, can be extracted H shaped steel from cement mixing method, reaches the object that reclaims and again utilize.Therefore it is short that this engineering method is compared not only the duration with conventional maintenance form, and work progress is pollution-free, place clean and tidy clean, noise is little, and can save social resources, avoids safeguarding that body forever leaves in underground after basement construction, becomes underground obstacle.In promotion, build a conservation-minded society, realize today of sustainable development, apply this engineering method and more there is realistic meaning.
But there is following shortcoming in the stake of SMW engineering method: in the stake of SMW engineering method, mostly use H shaped steel, the cost of H shaped steel is high, and in actual construction work use procedure, the freight of shaped steel and lease expenses are all very high, especially in longer situation of duration, the lease expenses of shaped steel can increase use cost greatly.Shaped steel, generally after basement construction finishes, need to be pulled out in addition, may cause shaped steel bending, break equal loss, when place restriction cannot be extracted, can greatly increase engineering cost again.
The reinforcing bar of castinplace pile and concrete consumption are more, also need to arrange in addition water-stop curtain, construct more loaded down with trivial details, larger on the impact of environment.
Therefore, supporting and protection structure used in existing architecture Foundation Pit Engineering can't meet engineering demand completely, need to develop a kind of novel foundation pit supporting construction, safe and reliable, economical rationality, easy construction.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of prestressed concrete pile and supporting piling wall, and this prestressed concrete pile has good bending rigidity, is guaranteeing, under the safe and reliable prerequisite of pattern foundation pit supporting structure, can to reduce engineering cost, easy construction; Supporting piling wall has good bending rigidity and Lateral resisting ability.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of prestressed concrete pile is provided, comprise: this prestressed concrete pile comprises at least one prestressed concrete member, the cross section of described prestressed concrete member is dumbbell shape, comprise symmetrically arranged top flange, bottom flange and be arranged on the web between described top flange, bottom flange, the inside of described prestressed concrete member is provided with steel bar stress, presstressed reinforcing steel and stirrup.
In preferred embodiment of the utility model, the two sides of described web are symmetrical structure, and described side comprises two hypotenuses and a medial side, and two hypotenuses are symmetrical arranged, and the angle between described hypotenuse and medial side is more than or equal to 135 °.
In preferred embodiment of the utility model, the two sides of described web are symmetrical structure, and described side comprises the arc-shaped edges of indent.
In preferred embodiment of the utility model, the two sides of described web are symmetrical structure, and described side comprises symmetrical first side and Second Edge, and the angle between described first side and Second Edge is obtuse angle.
In preferred embodiment of the utility model, described prestressed concrete pile comprises a plurality of prestressed concrete members, described prestressed concrete member is provided with a plurality of through holes along axis direction, described a plurality of prestressed concrete member is serially connected by running through the bending resistance rope of described through hole, after the tensioning of described bending resistance rope, be fixedly connected with respectively with the two ends of described prestressed concrete pile, the junction of every two adjacent prestressed concrete members is all installed with reinforcement shear resisting board.
In preferred embodiment of the utility model, described bending resistance rope adopts steel strand, wire rope, prestressed reinforcement or plain bars, and the prestressed concrete member that is positioned at place, foundation ditch bottom surface has at least 2/3rds anchorage length to be embedded in below foundation ditch bottom surface.
The utility model also provides a kind of supporting piling wall with above-mentioned prestressed concrete pile, and described supporting piling wall comprises several cement mixing methods and is arranged on the prestressed concrete pile in described cement mixing method.
In preferred embodiment of the utility model, described cement mixing method adopts triaxial cement mixing pile construction machinery to construct, process the cement mixing method of three mutual interlocks at every turn, be respectively front stake, central pile and rear stake, form a Soil-cement pile element, by multiple form of construction work, form described cement-soil supporting piling wall, in described cement mixing method continuously or interval be inserted with prestressed concrete pile.
In preferred embodiment of the utility model, described supporting piling wall is formed by a plurality of Soil-cement pile element Heterogeneous Permutations, the rear stake of previous Soil-cement pile element and front interlock mutually of a rear cement mixing method, form alternating expression structure, in described cement mixing method continuously or interval be inserted with prestressed concrete pile.
In preferred embodiment of the utility model, described supporting piling wall comprises the cement soil wall matrix being comprised of a plurality of cement mixing methods that are arranged in order mutual interlock, in described cement soil wall matrix one side, be interval with a plurality of Soil-cement pile elements that are parallel to described cement soil wall matrix, three stakes of described Soil-cement pile element respectively with cement soil wall matrix on three mutual interlocks of stake, form raised type structure, in described cement mixing method continuously or interval be inserted with prestressed concrete pile.
The utility model prestressed concrete pile and supporting piling wall, have following beneficial effect:
1, prestressed concrete pile of the present utility model adopts steel concrete, presstressed reinforcing steel etc. as raw material, in the situation that foundation depth is darker, prestressed concrete pile can be divided into multistage, is convenient to transportation, has reduced cost of transportation.
2, compare with bored pile, the reinforcing bar that prestressed concrete pile of the present utility model adopts and concrete consumption are few, cost-saving, and little to ambient influnence.
3, compare with the stake of SMW engineering method, prestressed concrete pile of the present utility model, in the situation that foundation depth is darker, can adopt the combination of multistage prestressed concrete member, with respect to shaped steel, increased intensity, reduced cost of transportation, and do not need to pull out, avoided engineering to complete after the loss problem of pulling out of shaped steel.
4, prestressed concrete pile of the present utility model, by multistage prestressed concrete member is connected in series, and by bending resistance rope and reinforcement shear resisting board, make the prestressed concrete pile that is connected in series rear formation reach construction requirement, base pit engineering for different depth, can select prestressed concrete member to combine, construct more flexible, more economical reasonable.
5, supporting piling wall of the present utility model, adopts alternating expression or raised type structure, has strengthened whole bending rigidity and Lateral resisting ability.
In sum, the utility model prestressed concrete pile and supporting piling wall, guarantee the safe and reliable of foundation pit supporting construction, has again good economic benefit, easy construction, and ambient influnence is little, has further met the demand that base pit engineering is built.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the cross section structure schematic diagram one of described prestressed concrete member;
Fig. 2 is the cross section structure schematic diagram two of described prestressed concrete member;
Fig. 3 is the cross section structure schematic diagram three of described prestressed concrete member;
Fig. 4 is the alternating expression structural representation of the utility model supporting piling wall;
Fig. 5 is the raised type structural representation of the utility model supporting piling wall;
Fig. 6 is the package assembly schematic diagram of described prestressed concrete pile.
The specific embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment comprises:
Embodiment mono-:
Consult Fig. 1 and Fig. 4, a kind of prestressed concrete pile, comprise: this prestressed concrete pile 10 comprises a prestressed concrete member 11, this prestressed concrete pile 11 is suitable for use in the not dark situation of foundation depth, and a prestressed concrete member 11 can directly be used as prestressed concrete pile 10.
The cross section of described prestressed concrete member is dumbbell shape, comprise symmetrically arranged top flange 111, bottom flange 112 and be arranged on the web 113 between described top flange 111, bottom flange 112, the inside of described prestressed concrete member 11 is provided with steel bar stress 114, presstressed reinforcing steel 115 and stirrup 116, rational in infrastructure, bending rigidity is high.
As shown in Figure 1, the two sides of described web 113 are symmetrical structure, described side comprises two hypotenuses 1131 and a medial side 1132, two hypotenuses 1131 are symmetrical arranged, angle α between described hypotenuse 1131 and medial side 1132 is more than or equal to 135 °, structure arranges rationally, can meet engineering demand;
As shown in Figure 4, the utility model also provides a kind of supporting piling wall with above-mentioned prestressed concrete pile, and described supporting piling wall comprises several cement mixing methods and is arranged on the prestressed concrete pile 10 in described cement mixing method.
Described cement mixing method adopts triaxial cement mixing pile construction machinery to construct, process the cement mixing method of three mutual interlocks at every turn, be respectively front stake, central pile and rear stake, form a Soil-cement pile element, by multiple form of construction work, form body of wall, in described cement mixing method continuously or interval be inserted with prestressed concrete pile 10.
Described supporting piling wall is formed by a plurality of Soil-cement pile element Heterogeneous Permutations, the rear stake of previous Soil-cement pile element and front interlock mutually of a rear Soil-cement pile element, form alternating expression structure, strengthened whole bending rigidity and Lateral resisting ability.In practice of construction process, can in independent cement mixing method, insert undersized prestressed concrete pile, in the cement mixing method of the mutual interlock of dislocation place, insert large-sized prestressed concrete pile.
Embodiment bis-:
Consult Fig. 2, Fig. 5 and Fig. 6, a kind of prestressed concrete pile, comprise: this prestressed concrete pile 20 comprises a plurality of prestressed concrete members 21, this prestressed concrete pile 20 is suitable for use in the darker situation of foundation depth, the prestressed concrete member 21 that a plurality of length that can be prefabricated in the factory out is shorter, be convenient to be transported to scene, on-the-spot splicing easily.
The cross section of described prestressed concrete member 21 is dumbbell shape, comprise symmetrically arranged top flange 211, bottom flange 212 and be arranged on the web 213 between described top flange 211, bottom flange 212, the inside of described prestressed concrete member 21 is provided with steel bar stress 214, presstressed reinforcing steel 215 and stirrup 216, rational in infrastructure, bending rigidity is high.
As shown in Figure 2, the two sides of described web 213 are symmetrical structure, and described side comprises the arc-shaped edges 2131 of indent.
As shown in Figure 5, the utility model also provides a kind of supporting piling wall with above-mentioned prestressed concrete pile, and described supporting piling wall comprises several cement mixing methods and is arranged on the prestressed concrete pile 20 in described cement mixing method.
Described cement mixing method adopts triaxial cement mixing pile construction machinery to construct, process the cement mixing method of three mutual interlocks at every turn, be respectively front stake, central pile and rear stake, form a Soil-cement pile element, by multiple form of construction work, form body of wall, in described cement mixing method continuously or interval be inserted with prestressed concrete pile 20.
Described supporting piling wall comprises the cement soil wall matrix being comprised of a plurality of cement mixing methods that are arranged in order mutual interlock, in described cement soil wall matrix one side, be interval with a plurality of Soil-cement pile elements that are parallel to described cement soil wall matrix, the distance at interval can be a cement mixing method or a plurality of cement mixing method, according to the length of actual cement soil wall matrix, determine, three stakes of described Soil-cement pile element respectively with cement soil wall matrix on three mutual interlocks of stake, form raised type structure, in described cement mixing method continuously or interval be inserted with prestressed concrete pile 20, whole bending rigidity and Lateral resisting ability have been strengthened.In practice of construction process, can in independent cement mixing method, insert undersized prestressed concrete pile, in the cement mixing method of the mutual interlock at raised type structure place, insert large-sized preformed pile.
Described prestressed concrete member 21 is provided with a plurality of through holes along axis direction, described a plurality of prestressed concrete member is serially connected by running through the bending resistance rope 22 of described through hole, after described bending resistance rope 22 tensionings, be fixedly connected with respectively with the two ends of described prestressed concrete pile 20, the junction of every two adjacent prestressed concrete members is all installed with strengthens shear resisting board 23.
By a plurality of prestressed concrete members 21 are connected in series, and by bending resistance rope 22 and reinforcement shear resisting board 23, make the prestressed concrete pile that is connected in series rear formation reach construction requirement, base pit engineering for different depth, can select a plurality of prestressed concrete members to combine, with pile driver, the prestressed concrete pile combining is pressed in cement mixing method again, constructs more flexible, more economical reasonable.
Preferably, described bending resistance rope 22 adopts steel strand, wire rope, prestressed reinforcement or plain bars, by bending resistance rope 22, described a plurality of prestressed concrete members are closely serially connected, the prestressed concrete pile that prestressed concrete member is formed can reach the requirement of anti-soil pressure hydraulic pressure.
The prestressed concrete member 21 that is positioned at foundation ditch bottom surface place has at least 2/3rds anchorage length to be embedded in below foundation ditch bottom surface, larger at the suffered shearing of prestressed concrete member and contact position, foundation ditch bottom surface, and the shear resistance of junction is less between prestressed concrete member, so arrange like this, safer reasonable.
Described reinforcement shear resisting board 23 adopts steel plate, adopt peg to be connected with described prestressed concrete member, adjacent prestressed concrete member is fixed together, prevents from occurring misplacing in plant process, also strengthened to a certain extent the integral rigidity of described prestressed concrete pile.
Embodiment tri-:
As shown in Figure 3, the 3rd embodiment of the present utility model and the second embodiment are basic identical, the main distinction is, the cross section of described prestressed concrete member 31 is dumbbell shape, comprise symmetrically arranged top flange 311, bottom flange 312 and be arranged on the web 313 between described top flange 311, bottom flange 312, the inside of described prestressed concrete member 31 is provided with steel bar stress 314, presstressed reinforcing steel 315 and stirrup 316, and rational in infrastructure, bending rigidity is high.
The two sides of described web 313 are symmetrical structure, and described side comprises symmetrical first side 3131 and Second Edge 3132, and the angle between described first side 3131 and Second Edge 3132 is obtuse angle.
The utility model prestressed concrete pile and supporting piling wall, there is following beneficial effect: prestressed concrete pile of the present utility model adopts steel concrete, presstressed reinforcing steel etc. as raw material, in the situation that foundation depth is darker, prestressed concrete pile can be divided into multistage, be convenient to transportation, reduced cost of transportation; Compare with bored pile, the reinforcing bar that prestressed concrete pile of the present utility model adopts and concrete consumption are few, cost-saving, and little to ambient influnence; Compare with the stake of SMW engineering method, prestressed concrete pile of the present utility model, in the situation that foundation depth is darker, can adopt the combination of multistage prestressed concrete member, with respect to shaped steel, increased intensity, reduced cost of transportation, and do not need to pull out, avoided engineering to complete after the loss problem of pulling out of shaped steel; Prestressed concrete pile of the present utility model, by multistage prestressed concrete member is connected in series, and by bending resistance rope and reinforcement shear resisting board, make the prestressed concrete pile that is connected in series rear formation reach construction requirement, base pit engineering for different depth, can select prestressed concrete member to combine, construct more flexible, more economical reasonable; Supporting piling wall of the present utility model, adopts alternating expression or raised type structure, has strengthened whole bending rigidity and Lateral resisting ability; In sum, the utility model prestressed concrete pile and supporting piling wall, guarantee the safe and reliable of foundation pit supporting construction, has again good economic benefit, easy construction, and ambient influnence is little, has further met the demand that base pit engineering is built.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a prestressed concrete pile, it is characterized in that, this prestressed concrete pile comprises at least one prestressed concrete member, the cross section of described prestressed concrete member is dumbbell shape, comprise symmetrically arranged top flange, bottom flange and be arranged on the web between described top flange, bottom flange, the inside of described prestressed concrete member is provided with steel bar stress, presstressed reinforcing steel and stirrup.
2. prestressed concrete pile according to claim 1, it is characterized in that, the two sides of described web are symmetrical structure, and described side comprises two hypotenuses and a medial side, two hypotenuses are symmetrical arranged, and the angle between described hypotenuse and medial side is more than or equal to 135 °.
3. prestressed concrete pile according to claim 1, is characterized in that, the two sides of described web are symmetrical structure, and described side comprises the arc-shaped edges of indent.
4. prestressed concrete pile according to claim 1, is characterized in that, the two sides of described web are symmetrical structure, and described side comprises symmetrical first side and Second Edge, and the angle between described first side and Second Edge is obtuse angle.
5. prestressed concrete pile according to claim 1, it is characterized in that, described prestressed concrete pile comprises a plurality of prestressed concrete members, described prestressed concrete member is provided with a plurality of through holes along axis direction, described a plurality of prestressed concrete member is serially connected by running through the bending resistance rope of described through hole, after the tensioning of described bending resistance rope, be fixedly connected with respectively with the two ends of described prestressed concrete pile, the junction of every two adjacent prestressed concrete members is all installed with reinforcement shear resisting board.
6. prestressed concrete pile according to claim 5, it is characterized in that, described bending resistance rope adopts steel strand, wire rope, prestressed reinforcement or plain bars, and the prestressed concrete member that is positioned at place, foundation ditch bottom surface has at least 2/3rds anchorage length to be embedded in below foundation ditch bottom surface.
7. a supporting piling wall, it is characterized in that, described supporting piling wall comprises several cement mixing methods and be arranged on the prestressed concrete pile in described cement mixing method, and described prestressed concrete pile is the prestressed concrete pile described in claim 1 ~ 6 any one.
8. supporting piling wall according to claim 7, it is characterized in that, described cement mixing method adopts triaxial cement mixing pile construction machinery to construct, process the cement mixing method of three mutual interlocks at every turn, be respectively front stake, central pile and rear stake, form a Soil-cement pile element, by multiple form of construction work, form body of wall, in described cement mixing method continuously or interval be inserted with prestressed concrete pile.
9. supporting piling wall according to claim 8, it is characterized in that, described supporting piling wall is formed by a plurality of Soil-cement pile element Heterogeneous Permutations, the rear stake of previous Soil-cement pile element and front interlock mutually of a rear cement mixing method, form alternating expression structure, in described cement mixing method continuously or interval be inserted with prestressed concrete pile.
10. supporting piling wall according to claim 8, it is characterized in that, described supporting piling wall comprises the cement soil wall matrix being comprised of a plurality of cement mixing methods that are arranged in order mutual interlock, in described cement soil wall matrix one side, be interval with a plurality of Soil-cement pile elements that are parallel to described cement soil wall matrix, three stakes of described Soil-cement pile element respectively with cement soil wall matrix on three mutual interlocks of stake, form raised type structure, in described cement mixing method continuously or interval be inserted with prestressed concrete pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522155.2U CN203487531U (en) | 2013-08-26 | 2013-08-26 | Pre-stressed concrete pile and supporting pile wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320522155.2U CN203487531U (en) | 2013-08-26 | 2013-08-26 | Pre-stressed concrete pile and supporting pile wall |
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| CN203487531U true CN203487531U (en) | 2014-03-19 |
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| CN201320522155.2U Withdrawn - After Issue CN203487531U (en) | 2013-08-26 | 2013-08-26 | Pre-stressed concrete pile and supporting pile wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452101A (en) * | 2013-08-26 | 2013-12-18 | 江苏鼎达建筑新技术有限公司 | Prestressed concrete pile and supporting pile wall |
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2013
- 2013-08-26 CN CN201320522155.2U patent/CN203487531U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452101A (en) * | 2013-08-26 | 2013-12-18 | 江苏鼎达建筑新技术有限公司 | Prestressed concrete pile and supporting pile wall |
| CN103452101B (en) * | 2013-08-26 | 2016-08-10 | 江苏鼎达建筑新技术有限公司 | Prestressed-concrete pile and supporting piling wall |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |