CN220847619U - Pile anchor supporting improved structure - Google Patents
Pile anchor supporting improved structure Download PDFInfo
- Publication number
- CN220847619U CN220847619U CN202322729729.XU CN202322729729U CN220847619U CN 220847619 U CN220847619 U CN 220847619U CN 202322729729 U CN202322729729 U CN 202322729729U CN 220847619 U CN220847619 U CN 220847619U
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- steel
- pile
- steel sleeve
- reinforcement cage
- supporting
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 142
- 239000010959 steel Substances 0.000 claims abstract description 142
- 230000002787 reinforcement Effects 0.000 claims abstract description 37
- 238000010276 construction Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a pile anchor supporting improved structure, which comprises a supporting pile, wherein a steel reinforcement cage is arranged in the supporting pile, an opening is formed in the supporting pile at the position of the corresponding anchor cable elevation, a steel sleeve is sleeved on the steel reinforcement cage at the position of the corresponding opening, and the steel reinforcement cage is fixedly connected with the steel sleeve; and when the construction of the support pile is completed, excavating the foundation pit to the designed elevation of the anchor rope, chiseling the concrete layer outside the steel sleeve, and fixedly connecting the steel sleeve with the corresponding steel waist beam. The utility model embeds the steel sleeve on the outer side of the reinforcement cage of the pile body of the support pile, and the steel sleeve is welded and fixed with the reinforcement cage, and the steel sleeve is put into the pile hole together with the reinforcement cage, and the middle part of each section of steel pipe embedded part corresponds to the position of the anchor rod opening. And (3) chiseling off concrete on the outer side of the steel pipes before locking the anchor rods, embedding a short steel waist beam between two adjacent embedded steel pipes, and adopting cambered surface contact and the like to strongly connect the embedded steel pipes to fix the waist beam and effectively transfer force, wherein the welding method and the quality need to ensure the welding strength between the waist beam and the steel sleeve.
Description
Technical Field
The utility model relates to the technical field of pile anchor support of deep foundation pits, in particular to an improved pile anchor support structure.
Background
The foundation pit engineering is an important component in the underground engineering, along with urban development, the utilization of underground space is more and more important, the corresponding deep foundation pit engineering quantity is more and more, and in the deep foundation pit adopting pile anchor support, the problem of narrow space available in the field is frequently encountered, so that great difficulty is brought to foundation pit support design work.
Conventional pile-anchor support systems are challenged in narrow sites, and ground-wall, internal supports and the like are commonly used in general designs, but the cost is often high. In addition, the traditional pile anchor supporting technology not only increases the width of the fertilizer groove, but also is inconvenient for the waterproof construction of the outer wall.
Therefore, there is a need for a solution to the problem that the outer wall cannot be waterproof due to insufficient space in a narrow deep foundation pit without increasing the width of the fertilizer tank, and no effective solution is available at present.
Disclosure of utility model
Aiming at the technical problems in the related art, the utility model provides an improved pile anchor supporting structure, which is characterized in that the traditional pile anchor supporting technology is improved, the waist beam and the anchor head are fully embedded into the soil position between piles except for the pile inner lining connecting line, and the effective force transmission technology between the waist beam and the pile body is solved; the technical problem that the anchor head and the waist beam occupy the space of the fertilizer groove is successfully solved under the condition of not increasing project cost, and the defects in the prior art can be overcome.
In order to achieve the technical purpose, the technical scheme of the utility model is realized as follows:
The pile anchor supporting improved structure comprises a supporting pile, wherein a reinforcement cage is arranged in the supporting pile, an opening is formed in the supporting pile at the corresponding anchor rope elevation position, a steel sleeve is sleeved on the reinforcement cage at the corresponding opening position, and the reinforcement cage is fixedly connected with the steel sleeve;
When the foundation pit is excavated to the anchor rope design elevation after the construction of the support pile is finished, the concrete layer outside the steel sleeve is chiseled off, the steel sleeve is fixedly connected with the corresponding steel waist beam, the steel waist beam penetrates through the corresponding hole opening position of the support pile, and the outer side of the steel waist beam does not exceed the central connecting line of the adjacent support pile.
Further, the steel sleeve pipe is respectively beyond the width of the steel waist beam by one time at the upper end and the lower end of the steel waist beam, and the length of the steel sleeve pipe is 800-1000mm.
Further, the diameter of the steel sleeve is obtained by subtracting twice the thickness of the protective layer of the main reinforcement of the reinforcement cage from the diameter of the support pile.
Further, the steel sleeve wall thickness is the same as the steel wale rib plate thickness.
Further, the reinforcement cage is welded with the steel sleeve.
Further, the steel waist beam is formed steel, I-steel or channel steel.
Further, the length of the steel waist rail is adapted to the actual spacing between adjacent steel sleeves.
Further, the steel sleeve is welded with the steel wale.
The utility model has the beneficial effects that: the embedded part is placed in the pile body of the support pile, the embedded part is made of steel pipes, the length of each steel pipe is 800-1000mm, the steel pipes are sleeved outside the steel reinforcement cage and welded and fixed with the steel reinforcement cage, the steel reinforcement cage and the embedded part are placed into the pile hole together, and the middle part of each section of the steel pipe embedded part corresponds to the position of the anchor rod opening. Before the anchor rod is locked, concrete on the outer side of the steel pipe is chiseled, a short steel waist beam is embedded between two adjacent embedded steel pipes, the short steel waist beam is in equal-strength connection with the embedded steel pipes through arc surface contact, the waist beam is fixed, force is effectively transferred, and the welding strength between the waist beam and the steel sleeve is ensured through a welding method and quality.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a structural elevation view of a pile anchor support improvement according to an embodiment of the present utility model;
FIG. 2 is a structural cross-sectional view of a pile anchor support improvement structure according to an embodiment of the present utility model;
FIG. 3 is a side view of a pile for a pile anchor support improvement according to an embodiment of the present utility model;
In the figure: 1. supporting piles; 2. a steel sleeve; 3. a steel waist beam; 4. an anchor cable; 5. an anchor; 6. a pressure bearing plate; 7. a reinforcement cage; 8. and (5) cushion blocks.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
As shown in fig. 1-3, the pile anchor supporting improved structure according to the embodiment of the utility model comprises a supporting pile 1, wherein a reinforcement cage 7 is arranged in the supporting pile 1, the supporting pile 1 is provided with an opening at the elevation position of a corresponding anchor cable 4, the reinforcement cage 7 is sleeved with a steel sleeve 2 at the position corresponding to the opening, and the reinforcement cage 7 is fixedly connected with the steel sleeve 2;
When the construction of the support pile 1 is finished, the foundation pit is excavated to the designed elevation of the anchor rope 4, the concrete layer outside the steel sleeve 2 is chiseled, the steel sleeve 2 is fixedly connected with the corresponding steel waist beam 3, the steel waist beam 3 passes through the corresponding hole opening position of the support pile 1, and the outer side of the steel waist beam 3 does not exceed the central connecting line of the adjacent support pile 1.
The steel sleeve 2 is arranged at the upper end and the lower end of the steel waist beam 3 and exceeds the width of the steel waist beam by one time, and the length of the steel sleeve 2 is 800-1000mm. The diameter of the steel sleeve 2 is obtained by subtracting the thickness of the protective layer of the main reinforcement of the reinforcement cage 7 from the diameter of the support pile. The wall thickness of the steel sleeve 2 is the same as the rib plate thickness of the steel waist beam 3.
The reinforcement cage 7 is welded with the steel sleeve 2.
The steel waist beam 3 is formed steel, I-steel or channel steel. The length of the steel waist beam 3 is adapted to the actual distance between the adjacent steel sleeves 2. The steel sleeve 2 is welded with the steel waist beam 3.
In order to facilitate understanding of the above technical solutions of the present utility model, the following describes the above technical solutions of the present utility model in detail by a specific usage manner.
When the pile anchor supporting and protecting structure is particularly used, as shown in fig. 1 and 3, after the reinforcement cage 7 of the supporting pile 1 is processed, the elevation corresponding to each anchor cable 4 is accurately measured on the reinforcement cage 7, a section of steel sleeve 2 is sleeved, and then holes are formed at the corresponding elevation positions;
2 specifications of embedded steel sleeve: the steel sleeve 2 is preferably longer than one time of the width and length of the steel waist beam in the up-down direction of the steel waist beam 3 by 800-1000mm, the diameter of the steel sleeve 2 is obtained by subtracting the thickness of the protective layer of the main rib from the diameter of the support pile 1, and the wall thickness of the steel sleeve 2 is preferably consistent with the thickness of the rib plate of the steel waist beam 3;
the pre-buried steel sleeve 2 and the reinforcement cage 7 are firmly welded, so that the phenomenon that the steel sleeve 2 and the reinforcement cage 7 are detached by welding when the reinforcement cage 7 is sunk is avoided; in the sinking process of the reinforcement cage 7, the sinking elevation should be strictly controlled so as to ensure the accuracy of the punching positions of the embedded steel sleeve 2 and the anchor cable 4.
The steel waist beam 3 is made of steel, I-steel or channel steel, the types of the steel waist beam 3 and the bearing plate 6 are determined according to the load born by the steel waist beam 3, and the cushion block 8 is the same as the steel waist beam 3 in type.
As shown in fig. 2, the embedded position of the steel waist beam 3 can set the length of the steel beam according to the clear distance between the pre-embedded steel pipes of two adjacent piles, and the steel waist beam is embedded in the soil position between the piles, and the outer edge of the installed steel waist beam should not exceed the central connecting line of the two adjacent piles.
After the construction of the support pile 1 is finished, the foundation pit is excavated until the design elevation of the anchor cable 4 is achieved, and the concrete layer outside the steel sleeve 2 is chiseled by adopting a pneumatic pick. And measuring the actual pile spacing between two adjacent piles, cutting the steel waist beam 3 according to the actual pile spacing, placing the steel waist beam between the two piles, adopting cambered surface contact equal-strength connection, and conveying the steel waist beam to a laboratory for inspection before construction, wherein the welding quality is required to meet the standard requirement.
After the steel waist beam 3 and the steel sleeve 2 are firmly welded, a backing plate 8, a bearing plate 6, the anchor rope 4 and an anchorage device 5 are sequentially installed at the designed position of the anchor rope 4, grouting is carried out according to the design requirement, and the anchor rod tensioning and locking can be carried out after the strength of the anchor rod concretion body is more than 15MPa and reaches 75% of the design strength.
In summary, by means of the technical scheme, the embedded part is placed in the pile body of the support pile, the embedded part is made of steel pipes, the length of each steel pipe is 800-1000mm, the steel pipes are sleeved outside the steel reinforcement cage and welded and fixed with the steel reinforcement cage, the steel reinforcement cage and the embedded part are placed into the pile hole together, and the middle part of each section of the embedded part corresponds to the position of the anchor rod hole. Before the anchor rod is locked, concrete on the outer side of the steel pipe is chiseled, a short steel waist beam is embedded between two adjacent embedded steel pipes, the short steel waist beam is in equal-strength connection with the embedded steel pipes through arc surface contact, the waist beam is fixed, force is effectively transferred, and the welding strength between the waist beam and the steel sleeve is ensured through a welding method and quality.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The pile anchor supporting improved structure is characterized by comprising a supporting pile (1), wherein a reinforcement cage (7) is arranged inside the supporting pile (1), an opening is formed in the supporting pile (1) at the elevation position of a corresponding anchor cable (4), a steel sleeve (2) is sleeved at the corresponding opening position of the reinforcement cage (7), and the reinforcement cage (7) is fixedly connected with the steel sleeve (2);
when the construction of the support pile (1) is finished, the foundation pit is excavated to the designed elevation of the anchor rope (4), the concrete layer outside the steel sleeve (2) is chiseled away, the steel sleeve (2) is fixedly connected with the corresponding steel waist beam (3), the steel waist beam (3) passes through the corresponding hole opening position of the support pile (1), and the outer side of the steel waist beam (3) does not exceed the central connecting line of the adjacent support pile (1).
2. Pile anchor supporting improvement according to claim 1, characterized in that the steel sleeve (2) is over the width of the steel wale at the upper and lower ends of the steel wale (3) by one time, and the length of the steel sleeve (2) is 800-1000mm.
3. Pile anchor supporting improvement as claimed in claim 1, characterized in that the diameter of the steel sleeve (2) is the diameter of the supporting pile (1) minus twice the thickness of the protective layer of the main reinforcement of the reinforcement cage (7).
4. Pile anchor supporting improvement according to claim 1, characterized in that the wall thickness of the steel sleeve (2) is the same as the rib thickness of the steel wale (3).
5. Pile anchor supporting improvement according to claim 1, characterized in that the reinforcement cage (7) is welded with the steel sleeve (2).
6. Pile anchor supporting improvement according to claim 1, characterized in that the steel wale (3) is a section steel, an i-steel or a channel steel.
7. Pile anchor supporting and improving structure according to claim 1, characterized in that the length of the steel wale (3) is adapted to the actual spacing between adjacent steel bushings (2).
8. Pile anchor supporting improvement according to claim 1, characterized in that the steel sleeve (2) is welded with the steel wale (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322729729.XU CN220847619U (en) | 2023-10-11 | 2023-10-11 | Pile anchor supporting improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322729729.XU CN220847619U (en) | 2023-10-11 | 2023-10-11 | Pile anchor supporting improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220847619U true CN220847619U (en) | 2024-04-26 |
Family
ID=90770943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322729729.XU Active CN220847619U (en) | 2023-10-11 | 2023-10-11 | Pile anchor supporting improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220847619U (en) |
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2023
- 2023-10-11 CN CN202322729729.XU patent/CN220847619U/en active Active
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