CN215977232U - Steel pipe-reinforced concrete composite pile - Google Patents
Steel pipe-reinforced concrete composite pile Download PDFInfo
- Publication number
- CN215977232U CN215977232U CN202122605223.9U CN202122605223U CN215977232U CN 215977232 U CN215977232 U CN 215977232U CN 202122605223 U CN202122605223 U CN 202122605223U CN 215977232 U CN215977232 U CN 215977232U
- Authority
- CN
- China
- Prior art keywords
- pile
- steel pipe
- reinforced concrete
- concrete
- steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 53
- 239000002131 composite material Substances 0.000 title claims description 11
- 239000004567 concrete Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 11
- 239000002689 soil Substances 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
Images
Landscapes
- Piles And Underground Anchors (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The utility model discloses a steel pipe-reinforced concrete combined pile; it is characterized in that; the steel pipe-reinforced concrete is a combined structure of two types of piles, wherein a pile body is divided into 3 sections, the lower part of the pile body is provided with a reinforced concrete pile, the upper part of the pile body is provided with a steel pipe pile, and the middle part of the pile body is provided with a steel pipe externally-wrapped concrete pile; and the reinforced concrete pile and the steel pipe pile are connected by a steel-concrete connecting piece in the middle. The utility model solves the problems that a temporary structure with large bearing capacity in a deep and soft soil layer or a water area environment requires a pile foundation with large vertical and horizontal bearing capacity, large horizontal deformation resistance, convenient construction and removal and small influence on the water area environment.
Description
Technical Field
The utility model relates to the field of bridge construction, in particular to a steel pipe-reinforced concrete composite pile.
Background
Pile foundations, which are the most common form of foundation, are constructed in deep and soft soil layers or in water areas such as rivers, lakes, seas, etc. to build temporary structures with large bearing capacity. The pile foundation mainly comprises a steel pipe pile and a concrete pile.
The steel pipe pile has the advantages of convenient and quick construction, large horizontal bearing capacity and strong deformation resistance. However, for the pile with overlarge vertical bearing capacity, the steel pipe pile is difficult to be inserted and driven to the designed depth, so that the requirement on the bearing capacity is difficult to meet. If the steel pipe pile is inserted and driven too deeply, the later period is difficult to pull out, so that the material loss is large, and the pile head left on the bed surface of the water area can influence the underwater dredging work or navigation safety.
The reinforced concrete pile has the disadvantages of large vertical bearing capacity, small horizontal deformation resistance, difficult demolition, large environmental pollution caused by demolition work and the like.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned disadvantages, the present invention provides a steel pipe-reinforced concrete composite pile; the temporary structure with large bearing capacity in deep and soft soil layers or water area environments meets the requirements that a pile foundation is large in vertical and horizontal bearing capacity, large in horizontal deformation resistance, convenient to construct and dismantle and small in influence on the water area environments.
The utility model is realized in this way, construct a kind of steel tube-reinforced concrete composite pile, characterized by that; the steel pipe-reinforced concrete is a combined structure of two types of piles, wherein a pile body is divided into 3 sections, the lower part of the pile body is provided with a reinforced concrete pile, the upper part of the pile body is provided with a steel pipe pile, and the middle part of the pile body is provided with a steel pipe externally-wrapped concrete pile; and the reinforced concrete pile and the steel pipe pile are connected by a steel-concrete connecting piece in the middle.
The steel pipe-reinforced concrete combined pile is characterized in that the steel pipe-reinforced concrete combined pile is provided with a pile body; the construction process comprises the following steps: putting down a steel pipe pile (pile casing) → drilling, cleaning holes, putting down a reinforcement cage → pouring concrete to a height h1 → constructing a reinforced concrete connector → pouring concrete to a height h 2; the construction requirements are as follows:
the specification and model of the steel pipe are determined by calculation according to the requirements of vertical bearing capacity and horizontal bearing capacity. Adopting a steel pipe pile as a pile casing for drilling construction of the reinforced concrete pile; the bottom of the steel pipe (pile casing) is embedded into the position of the depth H below the designed top surface of the reinforced concrete pile;
secondly, the pile length of the reinforced concrete pile is determined by calculation according to the requirement of vertical bearing capacity; pouring concrete twice, after the concrete is poured to the designed height h1 for the first time, constructing a steel-concrete connecting piece, then pouring the concrete to the height h2 for the second time, and completely embedding the steel-concrete connecting piece into the pile foundation concrete poured for the second time; the top surface elevation h2 of the reinforced concrete pile is designed by considering the requirements of temporary structure removal (such as underwater desilting, navigation safety and the like), and is lower than the bed surface of a water area by a certain depth L2;
the steel-concrete connecting piece transfers the vertical force of the steel pipe and the reinforced concrete pile through self shearing force, and can adopt a perforated plate connecting piece or a shearing nail, and the specification and the model of the steel-concrete connecting piece are determined by calculation according to the stress;
when the steel pipe-reinforced concrete is dismantled, the steel pipe pile can be cut off from the top surface (h 2) of the reinforced concrete pile in an underwater cutting mode, and the pile body at the middle lower part is left below the depth L2 of the soil layer, so that the influence on the environment is eliminated.
The utility model has the following advantages: the utility model provides a steel pipe-reinforced concrete composite pile; the temporary structure with large bearing capacity in deep and soft soil layers or water area environments meets the requirements that a pile foundation is large in vertical and horizontal bearing capacity, large in horizontal deformation resistance, convenient to construct and dismantle and small in influence on the water area environments. The steel pipe-reinforced concrete composite pile described in this patent combines two types of piles together, the lower part is a reinforced concrete pile, the upper part is a steel pipe pile, and the reinforced concrete pile and the steel pipe are connected by a reinforced concrete connecting piece. The reinforced concrete pile at the lower part can provide larger vertical bearing capacity, and the steel pipe pile at the upper part can provide larger horizontal bearing capacity and larger horizontal deformability. The later-stage dismantling is easy, and the water area environment is not influenced.
Drawings
FIG. 1 is a construction view of a steel pipe-reinforced concrete composite pile in elevation;
fig. 2 is a schematic view of a corresponding steel-concrete joint construction according to the present invention.
Wherein: reinforced concrete pile 1, steel-pipe pile 2, steel pipe outsourcing concrete pile 3, steel-concrete connector 4, steel pipe wall 5, trompil board 6, twisted steel 7, steel-concrete connector 4 comprises 6 and 7.
Detailed Description
The present invention will be described in detail with reference to fig. 1-2, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention provides a steel pipe-reinforced concrete composite pile by improvement, as shown in fig. 1-2, which can be implemented as follows; the steel pipe-reinforced concrete is a combined structure of two types of piles, wherein a pile body is divided into 3 sections, the lower part of the pile body is provided with a reinforced concrete pile 1, the upper part of the pile body is provided with a steel pipe pile 2, and the middle part of the pile body is provided with a steel pipe concrete-coated pile 3; and the reinforced concrete pile and the steel pipe pile are connected by a steel-concrete connecting piece 4 in the middle.
The steel pipe-reinforced concrete combined pile comprises the following construction processes: putting down a steel pipe pile (pile casing) → drilling, cleaning holes, putting down a reinforcement cage → pouring concrete to a height h1 → constructing a reinforced concrete connector → pouring concrete to a height h 2; the construction requirements are as follows:
the specification and model of the steel pipe are determined by calculation according to the requirements of vertical bearing capacity and horizontal bearing capacity. Adopting a steel pipe pile as a pile casing for drilling construction of the reinforced concrete pile; the bottom of the steel pipe (pile casing) is embedded into the position of the depth H below the designed top surface of the reinforced concrete pile;
secondly, the pile length of the reinforced concrete pile is determined by calculation according to the requirement of vertical bearing capacity; pouring concrete twice, after the concrete is poured to the designed height h1 for the first time, constructing a steel-concrete connecting piece, then pouring the concrete to the height h2 for the second time, and completely embedding the steel-concrete connecting piece into the pile foundation concrete poured for the second time; the top surface elevation h2 of the reinforced concrete pile is designed by considering the requirements of temporary structure removal (such as underwater desilting, navigation safety and the like), and is lower than the bed surface of a water area by a certain depth L2;
the steel-concrete connecting piece transfers the vertical force of the steel pipe and the reinforced concrete pile through self shearing force, and can adopt a perforated plate connecting piece or a shearing nail, and the specification and the model of the steel-concrete connecting piece are determined by calculation according to the stress;
when the steel pipe-reinforced concrete is dismantled, the steel pipe pile can be cut off from the top surface (h 2) of the reinforced concrete pile in an underwater cutting mode, and the pile body at the middle lower part is left below the depth L2 of the soil layer, so that the influence on the environment is eliminated.
The patent has the advantages and beneficial effects that; the steel pipe-reinforced concrete composite pile described in this patent combines two types of piles together, the lower part is a reinforced concrete pile, the upper part is a steel pipe pile, and the reinforced concrete pile and the steel pipe are connected by a reinforced concrete connecting piece. The reinforced concrete pile at the lower part can provide larger vertical bearing capacity, and the steel pipe pile at the upper part can provide larger horizontal bearing capacity and larger horizontal deformability. The later-stage dismantling is easy, and the water area environment is not influenced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (1)
1. A steel pipe-reinforced concrete composite pile is characterized in that; the steel pipe-reinforced concrete pile is a combined structure of two types of piles, wherein a pile body is divided into 3 sections, the lower part of the pile body is provided with a reinforced concrete pile (1), the upper part of the pile body is provided with a steel pipe pile (2), and the middle part of the pile body is provided with a steel pipe concrete-coated pile (3); and the reinforced concrete pile and the steel pipe pile are connected by a steel-concrete connecting piece (4) in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605223.9U CN215977232U (en) | 2021-10-28 | 2021-10-28 | Steel pipe-reinforced concrete composite pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605223.9U CN215977232U (en) | 2021-10-28 | 2021-10-28 | Steel pipe-reinforced concrete composite pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215977232U true CN215977232U (en) | 2022-03-08 |
Family
ID=80511259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122605223.9U Active CN215977232U (en) | 2021-10-28 | 2021-10-28 | Steel pipe-reinforced concrete composite pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215977232U (en) |
-
2021
- 2021-10-28 CN CN202122605223.9U patent/CN215977232U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100510281C (en) | Semi-reverse construction method for ultra-large-diameter and ultra-buried depth storage tank | |
| CN100535264C (en) | Steel boxed cofferdam and recovery method thereof | |
| CN108824471A (en) | A kind of deep water drift net multi-column pier foundation and its construction method | |
| CN109183838A (en) | A kind of high anti-floating cracking resistance basement floor constructions and its design method | |
| CN210315632U (en) | Annular underground diaphragm wall foundation of large-span arch bridge in deep coverage area | |
| CN106498951B (en) | A kind of shaft excavation construction method | |
| CN113882361A (en) | Steel pipe-reinforced concrete composite pile | |
| CN101608454B (en) | Cavity shallow foundation and construction method | |
| CN215977232U (en) | Steel pipe-reinforced concrete composite pile | |
| CN201158821Y (en) | Cofferdam of steel pouring jacket | |
| CN112832281A (en) | Deep-water large-tonnage temporary pier foundation and construction method thereof | |
| JP2005290869A (en) | Reinforcing structure of structure on water | |
| CN105155421B (en) | Complete embedding circular construction method in a kind of single pile Single column pier river course shallow water | |
| JP4958064B2 (en) | Seismic reinforcement structure of quay | |
| CN207211167U (en) | Latch steel pipe and reinforced concrete combination pile cofferdam | |
| CN202139604U (en) | Cast-in-situ abnormal reinforced concrete pile core cement soil underground continuous wall for retaining and protection for foundation excavation | |
| CN201162229Y (en) | Anti-floating pit structure | |
| CN210122735U (en) | Underground structure anti-floating system based on outward-protruding wing foot plate | |
| CN210086328U (en) | Root pile for underpinning and reinforcing existing building foundation | |
| CN103195053B (en) | A kind of construction method of the piling strtucture with stake shoulder | |
| CN102677679A (en) | Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits | |
| CN111270682A (en) | Underground continuous wall structure with high vertical bearing capacity and construction method thereof | |
| CN110792093A (en) | Construction method of foundation pit waterproof curtain and waterproof curtain | |
| CN205530305U (en) | Cushion cap construction of large -scale bridge deep water basis is with three wall steel cofferdams | |
| CN217629852U (en) | Stable and efficient open caisson type conical expanded footing pile foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |