CN104790383B - A kind of upright column pile for foundation pit - Google Patents
A kind of upright column pile for foundation pit Download PDFInfo
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- CN104790383B CN104790383B CN201510088963.6A CN201510088963A CN104790383B CN 104790383 B CN104790383 B CN 104790383B CN 201510088963 A CN201510088963 A CN 201510088963A CN 104790383 B CN104790383 B CN 104790383B
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Abstract
The invention discloses a kind of upright column pile for foundation pit, it is desirable to provide one is not only constructed, convenient disassembly, and cost of manufacture can be reduced and be conducive to improving the upright column pile for foundation pit of the steadiness of this body structure of foundation ditch.It includes the concrete precast pile being positioned at stand column pile bottom and is positioned at the metal upright post on stand column pile top.Concrete precast pile upper end is additionally provided with the connection end plate for connecting concrete precast pile and metal upright post, connects end plate and concrete precast pile and is formed in one structure, and the concrete bonding connecting end plate and concrete precast pile is integrated.
Description
The application is filing date: on August 15th, 2013, and Application No.: 2013103554264 is invention entitled: the divisional application of a kind of upright column pile for foundation pit.
Technical field
The present invention relates to building foundation pit and go along with sb. to guard him field, be specifically related to a kind of upright column pile for foundation pit.
Background technology
In order to ensure underground structure and the safety of foundation ditch surrounding enviroment, need in safeguard procedures such as foundation pit side-wall and employing support, reinforcings around.Building foundation pit supporting generally includes the one group of engineering method stake arranged around margin of foundation pit, is positioned at and encloses purlin beam inside engineering method stake, some is arranged on the horizontal shore enclosed between purlin beam and stand column pile is constituted.Stand column pile is often connected with supporting piece, constitutes supporter, for supporting vertical load and the moment of flexure that horizontal shore in foundation ditch transmits.At present the stand column pile of foundation ditch generally includes following two type: one, the stand column pile that the bored concrete pile utilizing scene boring casting concrete to constitute collectively constitutes with steel lattice column；Such as, China Patent Publication No. CN202688989U, publication date on 01 23rd, 2013, the entitled stand column pile of innovation and creation, including pile body and column, described column includes steel reinforcement cage and is positioned at the lattice column at steel reinforcement cage top, and pile body is bored concrete pile.The bored concrete pile that after-pouring concrete is constituted in column hangs onto stake holes and column together constitute with stand column pile.This kind of foundation ditch stand column pile its not only difficulty of construction greatly, the longest, and engineering input cost is high.Its two, utilize existing shaped steel as the stand column pile of foundation ditch.Need to be retained in foundation ditch soil layer owing to stand column pile being positioned at the stand column pile part below foundation ditch soil layer, thus the stand column pile being made up of shaped steel is when if desired reclaiming, need the shaped steel that will be located in above foundation ditch soil layer to cut off to reclaim, it not only reclaims inconvenience, and whole stand column pile to use shaped steel to constitute its cost the highest.
Summary of the invention
The invention aims to overcome upright column pile for foundation pit of the prior art exist difficulty of construction greatly, the longest, engineering input cost is high, and the problem reclaiming inconvenience, there is provided one not only to construct, reclaim conveniently, and cost of manufacture can be reduced and be conducive to improving the upright column pile for foundation pit of the steadiness of this body structure of foundation ditch.
The technical scheme is that
A kind of upright column pile for foundation pit, including being positioned at the concrete precast pile of stand column pile bottom and being positioned at the metal upright post on stand column pile top.The stand column pile of this programme is made up of concrete precast pile and metal upright post, after stand column pile is squeezed in foundation ditch soil layer, concrete precast pile is positioned at foundation ditch soil layer, and metal upright post is positioned at above soil layer for supporting vertical load and the moment of flexure that foundation ditch horizontal shore transmits.After foundation ditch supports dismounting, metal upright post directly can be removed, recycle；Concrete precast pile is then permanently kept in bottom foundation ditch, improves the stability of this body structure of foundation ditch.The stand column pile of this programme replaces squeezing into the stand column pile concrete precast pile at the bottom of foundation ditch, and is then permanently kept in bottom foundation ditch by concrete precast pile, has not only saved steel, reduces construction costs, and is conducive to improving the steadiness of this body structure of foundation ditch.
As preferably, concrete precast pile upper end is additionally provided with the connection end plate for connecting concrete precast pile and metal upright post, connects end plate and concrete precast pile and is formed in one structure, and the concrete bonding connecting end plate and concrete precast pile is integrated.It is provided with some frameworks of steel reinforcement extended toward upper end from concrete precast pile lower end in concrete precast pile, and the upper end of each framework of steel reinforcement is resisted against on the plate face connecting end plate.
Owing to framework of steel reinforcement is extended from the lower end of concrete precast pile toward upper end, and the upper end of each framework of steel reinforcement is resisted against on the plate face connecting end plate；During stand column pile is squeezed into foundation ditch soil layer, metal upright post the pressure being delivered on concrete precast pile will be directly delivered on framework of steel reinforcement, framework of steel reinforcement bear；It is prevented effectively from the concrete precast pile top being connected with metal upright post to ftracture because bearing pressure, comes off, cause concrete precast pile to be destroyed, affect perpendicularity and the bearing value of whole stand column pile.
As preferably, metal upright post is connected by welding or bolt or flange or sulphide mastic with being connected between end plate.
As another kind of preferred version, some frameworks of steel reinforcement extended from concrete precast pile lower end it are provided with toward upper end in concrete precast pile, each framework of steel reinforcement is parallel to each other and is evenly distributed in concrete precast pile, and one end of each framework of steel reinforcement extends to outside concrete precast pile upper surface；The carrying end plate being arranged over being connected with each framework of steel reinforcement of concrete precast pile upper end, this carrying end plate is perpendicular with framework of steel reinforcement, and is provided with gap between carrying end plate and concrete precast pile upper surface；The upper surface of carrying end plate is provided with some connection through holes corresponding with framework of steel reinforcement；It is positioned at the connection through hole being plugged in correspondence from bottom to top of each framework of steel reinforcement outside concrete precast pile upper surface, and connect by being weldingly connected between carrying end plate and each framework of steel reinforcement, described metal upright post is arranged on the top of carrying end plate, and the lower end of metal upright post is connected with carrying end plate.
Owing to carrying end plate is connected with the framework of steel reinforcement extended to outside concrete precast pile upper surface, and carry and be provided with gap between end plate and concrete precast pile upper surface；Thus during stand column pile squeezes into foundation ditch soil layer, metal upright post the pressure being delivered on concrete precast pile will be directly delivered on framework of steel reinforcement, bear framework of steel reinforcement；The concrete precast pile top being connected with metal upright post can be avoided to ftracture because bearing pressure, come off, cause concrete precast pile to be destroyed, affect perpendicularity and the bearing value of whole stand column pile.
On the other hand, owing to being provided with gap between carrying end plate and concrete precast pile upper surface, thus during stand column pile squeezes into foundation ditch soil layer, on the framework of steel reinforcement that the elastic deformation of framework of steel reinforcement will occur mainly between carrying end plate and concrete precast pile upper surface, avoid the framework of steel reinforcement within concrete precast pile to deform upon, and cause the concrete cracking of concrete precast pile；Thus the deformation limit of concrete is much smaller than the deformation limit of framework of steel reinforcement, exceedes the deformation limit of concrete once the deformation of framework of steel reinforcement, be easy for causing concrete cracking.
As preferably, connection through hole is stepped throughhole, and the sectional area connecting through hole is up big and down small；The end of the described framework of steel reinforcement being plugged in each connection through hole is connecting between through hole upper port with the close step surface being connected through hole upper port；Welding position between carrying end plate and each framework of steel reinforcement is arranged on and is connected in through hole, and fill solder completely connects through hole upper port and the connection through hole between the step surface being connected through hole upper port, and solder surface is polishing to and carries end plate upper surface flush；It is additionally provided with on described carrying end plate upper surface and carries the connecting plate that end plate is connected, and connecting plate lower surface fits with carrying end plate upper surface and solder surface；Described metal upright post is arranged on the top of connecting plate, and the lower end of metal upright post is connected with connecting plate.
Owing to connecing by being weldingly connected between the plate framework of steel reinforcement of bearing end, and carry and be provided with gap between end plate and concrete precast pile upper surface, although it can avoid concrete precast pile top to ftracture because bearing pressure, the problem come off；But during stand column pile squeezes into foundation ditch soil layer, once there are the weld cracking between a framework of steel reinforcement and carrying end plate, inefficacy, then it is easy to cause remaining framework of steel reinforcement and the weld cracking carried between end plate, inefficacy, the loading end carrying end plate is caused to tilt, and then causing metal upright post to tilt so that whole stand column pile lost efficacy；Thus this programme improves for this problem, effectively solve the problems referred to above.
This programme is set to up big and down small stepped throughhole by connecting through hole, and this is connecting between through hole upper port with the close step surface being connected through hole upper port by the end of framework of steel reinforcement；So it is possible not only to increase the bonding area between weld seam and framework of steel reinforcement and carrying end plate, and when after the connection through hole that fill solder completely connects between through hole upper port with the close step surface being connected through hole upper port, the solder having a weld seam will be covered in framework of steel reinforcement upper end, solder surface is now polishing to and carries end plate upper surface flush, and connecting plate is fixed on carrying end plate upper surface and fits with solder surface；Thus during stand column pile squeezes into foundation ditch soil layer, even if the weld cracking between framework of steel reinforcement and carrying end plate, inefficacy, connecting plate still can transfer force on framework of steel reinforcement by solder reliably, the loading end keeping connecting plate is in level, and then ensures that metal upright post and stand column pile are in vertical state.
As preferably, carry the diameter being smaller than framework of steel reinforcement between end plate and concrete precast pile upper surface.Due to the diameter being smaller than framework of steel reinforcement between carrying end plate and concrete precast pile upper surface, it can effectively ensure that during stand column pile squeezes into foundation ditch soil layer, framework of steel reinforcement between carrying end plate and concrete precast pile upper surface will not occur plastic deformation, and then ensures that metal upright post and stand column pile are in vertical state.
As preferably, concrete precast pile is hollow concrete prefabricated pile, and the hollow hole of concrete precast pile runs through the two ends of concrete precast pile, and the circular in cross-section of hollow hole；Described each framework of steel reinforcement is uniform around hollow hole circumference.
As preferably, in concrete precast pile, it is provided with some frameworks of steel reinforcement extended from concrete precast pile lower end toward upper end；And before concrete precast pile makes, each framework of steel reinforcement is stretched in its elastic deformation；In concrete precast pile manufacturing process, keep the stretching to each framework of steel reinforcement, the prestressing force on each framework of steel reinforcement is maintained in concrete precast pile finished product.
Owing to concrete precast pile will be permanently kept in bottom foundation ditch, to improve the stability of this body structure of foundation ditch；Thus this programme carries out stretch processing to the framework of steel reinforcement in concrete precast pile, and in the prestressing force of framework of steel reinforcement is kept concrete precast pile finished product after it has been manufactured, thus when the two ends of the concrete precast pile being retained in foundation ditch soil layer are stretched or concrete precast pile is squeezed, then need to overcome in advance the prestressing force in concrete precast pile, thus the resistivity of concrete precast pile can be improved, improve the rigidity of concrete precast pile, postpone the time that concrete precast pile crack occurs, improve the service life of concrete precast pile and improve the contribution that foundation ditch is consolidated performance.
As preferably, metal upright post is H profile steel, and described concrete precast pile is hollow concrete prefabricated pile.
As preferably, concrete precast pile is hollow concrete prefabricated pile, and the hollow hole of concrete precast pile runs through the two ends of concrete precast pile, and the circular in cross-section of hollow hole；In described hollow hole near its top and bottom corresponding be provided with upper and lower two seal cover boards, and the hollow hole between upper and lower two seal cover boards in form airtight storage chamber；Hollow hole inwall between upper and lower two seal cover boards is provided with some spout holes running through concrete precast pile, is provided with thin-walled sealing plate by its external port, and thin-walled sealing plate medial surface is provided with the fragile groove of V-arrangement in each spout hole；Be equally spaced on described storage chamber inwall some water bags from top to bottom, the rotating shaft being coaxially disposed it is provided with in described hollow hole, it is provided with axle sleeve in the middle part of top cover labyrinth plate, rotating shaft is down positioned at storage chamber through the axle sleeve of top cover labyrinth plate by hollow hole upper end, position corresponding with each water bag in described rotating shaft is respectively equipped with the puddler radially extended along hollow hole, is covered with dry expanding cement in described storage chamber.
When the metal upright post disassembly & recycling in stand column pile, and after being retained in bottom foundation ditch by concrete precast pile, puddler can be driven to rotate with rotating shaft (driving whole axis of rotation by the rotating shaft at hollow hole upper port)；Water bag is destroyed by puddler rotation process, makes the water in water bag flow out and mix with the expanding cement in storage chamber, and stirred by puddler；To expand after expanding cement is mixed homogeneously with water, owing to the thin-walled sealing plate structure in each spout hole is weak and is additionally provided with the fragile groove of V-arrangement on it, thus each spout hole thin-walled sealing plate is burst by expanding cement expansion process, make expanding cement be spilt in foundation ditch soil layer by each spout hole；Some tentacles will be formed at concrete precast pile after expanding cement solidifies to be fixed on firmly by concrete precast pile in foundation ditch soil layer, the most effective steadiness improving foundation ditch soil layer.
The invention has the beneficial effects as follows: not only there is construction, reclaim convenient feature, and cost of manufacture can be reduced and be conducive to improving the steadiness of this body structure of foundation ditch.
Accompanying drawing explanation
Fig. 1 is the explosive view of a kind of upright column pile for foundation pit of embodiments of the invention 1.
Fig. 2 is a kind of structural representation after a kind of upright column pile for foundation pit assembling of embodiments of the invention 1.
Fig. 3 is a kind of part section structural representation of a kind of upright column pile for foundation pit of embodiments of the invention 2.
Fig. 4 is the partial enlarged drawing in Fig. 3 at A.
Fig. 5 is a kind of part section structural representation of a kind of upright column pile for foundation pit of embodiments of the invention 4.
Fig. 6 is the partial enlarged drawing in Fig. 5 at B.
In figure: concrete precast pile 1, hollow hole 2, connect end plate 3, metal upright post 4, framework of steel reinforcement 5, carries end plate 6, connecting plate 7, connect through hole 8, solder 9, rotating shaft 10, top cover labyrinth plate 11, puddler 12, spout hole 13, lower seal cover plate 14, water bag 15, storage chamber 16, expanding cement 17, thin-walled sealing plate 18, the fragile groove of V-arrangement 19.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
Embodiment 1: as shown in Figure 1 and Figure 2, a kind of upright column pile for foundation pit, including being positioned at the concrete precast pile 1 of stand column pile bottom and being positioned at the metal upright post 4 on stand column pile top.Metal upright post is shaped steel, and the metal upright post 4 in the present embodiment is H profile steel.Concrete precast pile 1 is hollow concrete prefabricated pile.The hollow hole 2 of concrete precast pile 1 runs through the two ends of concrete precast pile.The circular in cross-section of the hollow hole of concrete precast pile or square or regular polygon.Concrete precast pile cross section is circular or oval or triangle or square or polygon.Some frameworks of steel reinforcement 5 extended from concrete precast pile lower end it are provided with toward upper end in concrete precast pile 1.Each framework of steel reinforcement is parallel to each other.Each framework of steel reinforcement is uniform around hollow hole circumference.
Concrete precast pile 1 upper end is additionally provided with the connection end plate 3 for connecting concrete precast pile and metal upright post.Connect end plate 3 and concrete precast pile 1 to be formed in one structure, and the concrete bonding connecting end plate and concrete precast pile is integrated.The upper end of each framework of steel reinforcement 5 is resisted against on the plate face connecting end plate 3.Metal upright post 4 is connected by welding or bolt or flange or sulphide mastic with being connected between end plate 3.
The stand column pile of this programme is made up of concrete precast pile and metal upright post.After stand column pile is squeezed in foundation ditch soil layer, concrete precast pile is positioned at foundation ditch soil layer；And metal upright post is positioned at above soil layer for supporting vertical load and the moment of flexure that foundation ditch horizontal shore transmits.After foundation ditch supports dismounting, metal upright post directly can be removed, recycle；Concrete precast pile is then permanently kept in bottom foundation ditch, improves the stability of this body structure of foundation ditch.
Embodiment 2: remaining structure of the present embodiment is with reference to embodiment 1, and its difference is:
As shown in Figure 3, Figure 4, one end of each framework of steel reinforcement 5 extends to outside concrete precast pile 1 upper surface.The carrying end plate 6 being arranged over being connected with each framework of steel reinforcement 5 of concrete precast pile 1 upper end.This carrying end plate 6 is perpendicular with framework of steel reinforcement 5.The diameter being smaller than framework of steel reinforcement 5 between gap, and carrying end plate and concrete precast pile upper surface it is provided with between carrying end plate 6 and concrete precast pile 5 upper surface.
The upper surface of carrying end plate 6 is provided with some connection through holes 8 corresponding with framework of steel reinforcement 5.Connection through hole is stepped throughhole, and the sectional area connecting through hole is up big and down small.It is positioned at the connection through hole 8 being plugged in correspondence from bottom to top of each framework of steel reinforcement 5 outside concrete precast pile 1 upper surface, and the end of the framework of steel reinforcement 5 being plugged in each connection through hole is connecting between through hole upper port with the close step surface being connected through hole upper port.Connect by being weldingly connected between carrying end plate 6 and each framework of steel reinforcement 5.Welding position between carrying end plate 6 and each reinforcing bar 5 frame is arranged on and is connected in through hole, and solder 9 is filled and completely connected through hole upper port and the connection through hole 8 between the step surface being connected through hole upper port.Solder 9 surface is polishing to and carries end plate 6 upper surface flush.It is additionally provided with on carrying end plate 6 upper surface and carries the connecting plate 7 that end plate is connected, and connecting plate lower surface fits with carrying end plate upper surface and solder surface.It is weldingly connected between carrying end plate and connecting plate.Metal upright post is arranged on the top of carrying end plate, and the lower end of metal upright post is connected with carrying end plate, and specifically, metal upright post 4 is arranged on the top of connecting plate 7, and the lower end of metal upright post is connected with connecting plate.
Owing to carrying end plate is connected with the framework of steel reinforcement extended to outside concrete precast pile upper surface, and carry and be provided with gap between end plate and concrete precast pile upper surface；Thus during stand column pile squeezes into foundation ditch soil layer, metal upright post the pressure being delivered on concrete precast pile will be directly delivered on framework of steel reinforcement, bear framework of steel reinforcement；The concrete precast pile top being connected with metal upright post can be avoided to ftracture because bearing pressure, come off, cause concrete precast pile to be destroyed, affect perpendicularity and the bearing value of whole stand column pile.On the other hand, owing to being provided with gap between carrying end plate and concrete precast pile upper surface, thus during stand column pile squeezes into foundation ditch soil layer, on the framework of steel reinforcement that the elastic deformation of framework of steel reinforcement will occur mainly between carrying end plate and concrete precast pile upper surface, avoid the framework of steel reinforcement within concrete precast pile to deform upon, and cause the concrete cracking of concrete precast pile；Thus the deformation limit of concrete is much smaller than the deformation limit of framework of steel reinforcement, exceedes the deformation limit of concrete once the deformation of framework of steel reinforcement, be easy for causing concrete cracking.
Embodiment 3: remaining structure of the present embodiment is with reference to embodiment 1 or embodiment 2, and its difference is:
Some frameworks of steel reinforcement extended from concrete precast pile lower end it are provided with toward upper end in concrete precast pile；And before concrete precast pile makes, each framework of steel reinforcement is stretched in its elastic deformation；In concrete precast pile manufacturing process, keep the stretching to each framework of steel reinforcement, the prestressing force on each framework of steel reinforcement is maintained in concrete precast pile finished product.
Owing to concrete precast pile will be permanently kept in bottom foundation ditch, to improve the stability of this body structure of foundation ditch；Thus this programme carries out stretch processing to the framework of steel reinforcement in concrete precast pile, and by the prestressing force holding of framework of steel reinforcement concrete precast pile finished product after it has been manufactured；When the two ends of the concrete precast pile being retained in foundation ditch soil layer are stretched or concrete precast pile is squeezed, then need to overcome in advance the prestressing force in concrete precast pile；Thus the resistivity of concrete precast pile can be improved, improve the rigidity of concrete precast pile, postpone the time that concrete precast pile crack occurs, improve the service life of concrete precast pile and improve the contribution that foundation ditch is consolidated performance.
Embodiment 4: remaining structure reference embodiment 1 of the present embodiment or embodiment 2 or embodiment 3, its difference is:
As shown in Figure 5, Figure 6, the circular in cross-section of the hollow hole 2 of concrete precast pile 1.Corresponding near its top and bottom in hollow hole 2 it is provided with in upper and lower two seal cover boards 11,14, and the hollow hole 2 between upper and lower two seal cover boards 11,14 storage chamber 16 that formation is airtight.Hollow hole 2 inwall between upper and lower two seal cover boards 11,14 is provided with some spout holes 13 running through concrete precast pile.It is provided with thin-walled sealing plate 18 by its external port in each spout hole, and thin-walled sealing plate medial surface is provided with the fragile groove of V-arrangement 19.Be equally spaced on storage chamber 16 inwall some water bags 15 from top to bottom.Water bag is fixed on storage chamber inwall.Water bag could be arranged to plastic water bag.The rotating shaft 10 being coaxially disposed it is provided with in hollow hole 2.Being provided with axle sleeve in the middle part of top cover labyrinth plate 11, rotating shaft 10 is down positioned at storage chamber 16 through the axle sleeve of top cover labyrinth plate 11 by hollow hole upper end.Position corresponding with each water bag 15 in rotating shaft 10 is respectively equipped with the puddler 12 radially extended along hollow hole, and when rotating shaft drives puddler to rotate, puddler will interfere with water bag and be destroyed by water bag.It is covered with dry expanding cement 17 in storage chamber 16, i.e. in storage chamber, is covered with dry expanding cement powder.
When the metal upright post in stand column pile and connect end plate disassembly & recycling, and after concrete precast pile is retained in bottom foundation ditch；Puddler can be driven to rotate by rotating shaft (driving whole axis of rotation by the rotating shaft at hollow hole upper port).Water bag is destroyed by puddler rotation process, makes the water in water bag flow out and mix with the expanding cement in storage chamber, and stirred by puddler.To expand after expanding cement is mixed homogeneously with water, owing to the thin-walled sealing plate structure in each spout hole is weak and is additionally provided with the fragile groove of V-arrangement on it, thus each spout hole thin-walled sealing plate is burst by expanding cement expansion process, make expanding cement be spilt in foundation ditch soil layer by each spout hole；Some tentacles will be formed at concrete precast pile after expanding cement solidifies to be fixed on firmly by concrete precast pile in foundation ditch soil layer, the most effective steadiness improving foundation ditch soil layer.
Claims (5)
1. a upright column pile for foundation pit, is characterized in that, including being positioned at the concrete precast pile (1) of stand column pile bottom and being positioned at the metal upright post (4) on stand column pile top；Described concrete precast pile (1) upper end is additionally provided with the connection end plate (3) for connecting concrete precast pile and metal upright post, connects end plate and concrete precast pile and is formed in one structure, and the concrete bonding connecting end plate and concrete precast pile is integrated；
Described concrete precast pile is hollow concrete prefabricated pile, and the hollow hole of concrete precast pile runs through the two ends of concrete precast pile, and the circular in cross-section of hollow hole；In described hollow hole near its top and bottom corresponding be provided with upper and lower two seal cover boards, and the hollow hole between upper and lower two seal cover boards in form airtight storage chamber；Hollow hole inwall between upper and lower two seal cover boards is provided with some spout holes running through concrete precast pile, is provided with thin-walled sealing plate by its external port, and thin-walled sealing plate medial surface is provided with the fragile groove of V-arrangement in each spout hole；Be equally spaced on described storage chamber inwall some water bags from top to bottom, the rotating shaft being coaxially disposed it is provided with in described hollow hole, it is provided with axle sleeve in the middle part of top cover labyrinth plate, rotating shaft is down positioned at storage chamber through the axle sleeve of top cover labyrinth plate by hollow hole upper end, position corresponding with each water bag in described rotating shaft is respectively equipped with the puddler radially extended along hollow hole, is covered with dry expanding cement in described storage chamber.
A kind of upright column pile for foundation pit the most according to claim 1, it is characterized in that, it is provided with some frameworks of steel reinforcement (5) extended toward upper end from concrete precast pile lower end in described concrete precast pile (1), and the upper end of each framework of steel reinforcement is resisted against on the plate face connecting end plate (3).
A kind of upright column pile for foundation pit the most according to claim 1 and 2, is characterized in that, described metal upright post is connected by welding or bolt or flange or sulphide mastic with being connected between end plate.
A kind of upright column pile for foundation pit the most according to claim 1 and 2, is characterized in that, be provided with some frameworks of steel reinforcement extended toward upper end from concrete precast pile lower end in described concrete precast pile；And before concrete precast pile makes, each framework of steel reinforcement is stretched in its elastic deformation；In concrete precast pile manufacturing process, keep the stretching to each framework of steel reinforcement, the prestressing force on each framework of steel reinforcement is maintained in concrete precast pile finished product.
A kind of upright column pile for foundation pit the most according to claim 1 and 2, is characterized in that, described metal upright post is H profile steel, and described concrete precast pile is hollow concrete prefabricated pile.
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| CN201510088963.6A CN104790383B (en) | 2013-08-15 | 2013-08-15 | A kind of upright column pile for foundation pit |
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| CN201510088963.6A CN104790383B (en) | 2013-08-15 | 2013-08-15 | A kind of upright column pile for foundation pit |
| CN201310355426.4A CN103422493B (en) | 2013-08-15 | 2013-08-15 | Upright column pile for foundation pit |
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| CN106480874B (en) * | 2016-12-07 | 2018-09-18 | 福州大学 | Using the built pile and its construction method of H profile steel and concrete |
| CN107012873B (en) * | 2017-04-13 | 2022-07-08 | 宁波中淳高科股份有限公司 | Prestressed prefabricated lattice column and manufacturing method thereof |
| CN106968247B (en) * | 2017-05-17 | 2022-08-19 | 洛阳理工学院 | Expansion pressure-breaking type recyclable anchor rod and construction method thereof |
| CN108222024A (en) * | 2018-03-15 | 2018-06-29 | 天津建城基业集团有限公司 | A kind of novel foundation pit supporting pile and its construction method |
| CN110076535B (en) * | 2019-05-31 | 2020-06-09 | 成都辟思航空科技有限公司 | Integral lattice column processing technology |
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| CN202688989U (en) * | 2012-07-18 | 2013-01-23 | 上海建工二建集团有限公司 | Upright pile |
| CN203049566U (en) * | 2012-12-31 | 2013-07-10 | 宁波市镇海建筑工程公司 | Stand column pile based on precast concrete tubular pile |
| CN203514299U (en) * | 2013-08-15 | 2014-04-02 | 东通岩土科技（杭州）有限公司 | Stand column pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103422493A (en) | 2013-12-04 |
| CN103422493B (en) | 2015-05-13 |
| CN104790383A (en) | 2015-07-22 |
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