CN215715498U - Interim reinforced structure of old high steep retaining wall of deep foundation - Google Patents
Interim reinforced structure of old high steep retaining wall of deep foundation Download PDFInfo
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- CN215715498U CN215715498U CN202120715355.4U CN202120715355U CN215715498U CN 215715498 U CN215715498 U CN 215715498U CN 202120715355 U CN202120715355 U CN 202120715355U CN 215715498 U CN215715498 U CN 215715498U
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Abstract
The utility model discloses a temporary reinforcing structure for an old high and steep retaining wall of a deep foundation. The anchor rod comprises an anchor rod, a micro pile, channel steel and a concrete beam; the anchor rod penetrates through the channel steel and is arranged on the old high and steep retaining wall; the anchor head of the anchor rod extends out of the old high and steep retaining wall and is positioned on the outer side of the old high and steep retaining wall; the pile body of the miniature pile is close to and/or penetrates through the outer side wall body of the old high and steep retaining wall; the channel steel is arranged at the upper end of the miniature pile; the concrete beam is arranged at the joint of the anchor rod, the micro pile and the channel steel and is seamlessly connected with the old high and steep retaining wall. The utility model has the advantages that the temporary reinforcement can be provided for the old retaining wall in the construction process, and the safety of operators and buildings behind the wall in the construction process can be ensured; and can be buried in the retaining wall as a permanent structure after construction, and can be used as a safety reserve.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a temporary reinforcing structure for a deep foundation old high and steep retaining wall.
Background
Limited by construction site conditions, some buildings are built in fill areas, and the peripheries of the buildings are supported by deep foundation high and steep retaining walls. Because the earth filled behind the retaining wall is soaked by rainwater or domestic water, or the load behind the wall is increased due to the fact that a building is covered by a cover, and the construction quality of the retaining wall is uneven, the wall body of the old retaining wall is damaged by cracking, local bulging and the like, comprehensive reinforcing measures are urgently needed to be taken for the wall body, such as thickening the wall body on the outer side of the retaining wall, increasing and building a supporting wall and the like, and the excavation of the earth body in front of the old high and steep retaining wall can be related. In the construction process, although the process adopts groove jumping excavation, the old retaining wall foundation is still inevitably disturbed, so that the deformation of the original retaining wall is further aggravated, and the safety of buildings behind the wall and constructors under the wall is seriously threatened.
Therefore, the temporary reinforcing measure for the deep foundation high and steep retaining wall, which is feasible in technology, reasonable in economy and simple in process, is found, the safety of operators and buildings behind the wall in the construction process is guaranteed, and the method has extremely important practical significance.
Disclosure of Invention
The utility model aims to provide a temporary reinforcing structure for an old high-steep retaining wall with a deep foundation, which can provide temporary reinforcement for the old retaining wall in the construction process and ensure the safety of operators and buildings behind the wall in the construction process; and can be buried in the retaining wall as a permanent structure after construction, and can be used as a safety reserve.
In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides a deep foundation old high steep retaining wall temporary reinforcement structure which characterized in that: the anchor rod is arranged on the steel pipe and comprises an anchor rod, a micro pile, channel steel and a concrete beam;
the anchor rod penetrates through the channel steel and is arranged on the old high and steep retaining wall; the anchor head of the anchor rod extends out of the old high and steep retaining wall and is positioned on the outer side of the old high and steep retaining wall;
the pile body of the miniature pile is close to and/or penetrates through the outer side wall body of the old high and steep retaining wall;
the channel steel is arranged at the upper end of the miniature pile;
the concrete beam is arranged at the joint of the anchor rod, the micro pile and the channel steel and is seamlessly connected with the old high and steep retaining wall.
In the technical scheme, an anchor rod hole is formed in a web plate of the channel steel; the anchor rod extends out of the anchor rod hole;
the web plate is connected with the upper end of the micro pile in a welding way.
In the technical scheme, the anchor rod is obliquely arranged;
the anchor rod is provided with a plurality of bolts; the anchor rods are arranged at equal intervals and are positioned on the same elevation of the old high and steep retaining wall;
the distance between two adjacent anchor rods is 1 m;
the exposed length of the anchor head is greater than or equal to 1 m.
In the technical scheme, the length of the long embedded depth of the micro pile exceeding the length of the old high and steep retaining wall foundation is determined according to calculation.
The number of the micro piles is multiple; a plurality of micro-piles are arranged at equal intervals; the distance between two adjacent micro piles is 1 m;
the number of anchor rod holes is equal to the number of anchor rods.
In the technical scheme, I-shaped steel is arranged in the micro pile; the web plate is connected with the I-shaped steel in a welding mode.
In the technical scheme, the concrete beam is wrapped on the periphery of the connecting part of the anchor rod, the miniature pile and the channel steel.
The foundation burial depth of the temporary reinforcing structure for the old high and steep retaining wall with the deep foundation is greater than or equal to 2m, and the wall height is greater than or equal to 5 m.
The utility model has the following advantages:
(1) the retaining wall has an exquisite structure, can quickly and effectively restrain the deformation of the old retaining wall, can effectively prevent the deformation of the old retaining wall from being further aggravated before the permanent supporting engineering is finished, can also provide protection for the operation in the construction period, and has feasible technology, economy, reasonability and simple process;
(2) after the permanent engineering shaping, this temporary reinforcement structure buries underground in retaining wall as permanent structure, as a safe deposit, improves retaining wall's overall stability.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1.
Fig. 4 is a cross-sectional view taken along line C-C of fig. 1.
Fig. 5 is a schematic structural diagram of the welded connection between the channel steel web and the i-steel of the micro-pile.
Fig. 6 is a schematic view of a channel steel structure in the present invention.
Fig. 7 is a cross-sectional view taken along line D-D of fig. 1.
Fig. 8 is a side view of the present invention.
A in fig. 2 denotes the borehole wall; b represents an anchoring mortar.
A in fig. 3 represents the borehole wall; b represents anchoring mortar; and C represents an arc smooth circular rib.
And K in each of the figures 4 and 5 represents the I-steel welding joint of the channel steel web plate and the micro pile.
In the figure, 1-anchor rod, 1.1-anchor head, 1.2-anchor rod reinforcing steel bar, 2-micro pile, 2.1-I-shaped steel, 3-channel steel, 3.1-web plate, 3.11-anchor rod hole, 4-concrete beam and 5-old high and steep retaining wall.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the utility model will be clear and readily understood by the description.
With reference to the accompanying drawings: a temporary reinforcing structure for an old high and steep retaining wall of a deep foundation comprises an anchor rod 1, a micro pile 2, channel steel 3 and a concrete beam 4;
the anchor rod 1 penetrates through the channel steel 3 and is arranged on the old high-steep retaining wall 5, and anchor rod steel bars 1.2 are arranged in the anchor rod 1; the anchor head 1.1 of the anchor rod 1 extends out of the old high and steep retaining wall 5 and is positioned outside the old high and steep retaining wall 5;
the elevation of the anchor rod 1 is approximately the same as the elevation of the pile top of the miniature pile 2; the elevation of the pile top of the micro pile 2 is consistent with that of the channel steel 3;
the pile body of the micro pile 2 is close to and/or penetrates through the outer side wall body of the old high and steep retaining wall 5;
the back of the channel steel 3 is arranged at the upper end of the micro pile 2 (the opening of the channel steel 3 is outward);
the concrete beam 4 is arranged at the joint of the channel steel 3 and the anchor rod 1 and is poured at the joint of the channel steel 3 and the micro pile 2; the deformation of the old retaining wall can be quickly and effectively restrained, the deformation of the old retaining wall can be effectively prevented from being further aggravated before the permanent support engineering is completed, the protection can be provided for the operation in the construction period, and the structure is exquisite.
Furthermore, an anchor rod hole 3.11 is formed in a web plate 3.1 of the channel steel 3; the anchor head 1.1 extends out of the anchor rod hole 3.11;
the web 3.1 is connected with the upper end of the micro-pile 2 by welding.
Further, the anchor rod 1 is obliquely arranged relative to one side of the old high and steep retaining wall 5; according to the technical specification of building slope engineering GB50330-2013, the inclination angle of the anchor rod is 10-35 degrees;
the anchor rod 1 is provided with a plurality of bolts; the anchor rods 1 are arranged at equal intervals and are positioned on the old high and steep retaining wall 5 at the same height;
the distance between two adjacent anchor rods 1 is 1 m; the structural stability is ensured;
the length of the anchor head 1.1 exposed outside the old high-steep retaining wall 5 is larger than or equal to 1m, and through concrete pouring, concrete is fixed and wraps the exposed part of the anchor head 1.1, the upper end of the miniature pile 2 and the channel steel 3, so that no gap is reserved between the anchor head 1, the miniature pile 2, the channel steel 3 and the old high-steep retaining wall 5, an integral structure is formed, and the integral structure is stressed jointly.
Further, the length of the micro-pile 2 passing through the old high and steep retaining wall 5 is related to the slope ratio of the old high and steep retaining wall 5; the pile body of the micro pile is close to and/or penetrates through the outer side wall body and penetrates into the position below the foundation of the old high and steep retaining wall 5; the length of the pile 2, which exceeds the length of the old high and steep retaining wall 5 foundation, is determined according to calculation.
The number of the micro piles 2 is multiple; a plurality of micro-piles 2 are arranged at equal intervals; the distance between two adjacent micro-piles 2 is 1 m; ensuring the structural stability.
Further, the number of the anchor rod holes 3.11 is equal to that of the anchor rods 1; the anchor rod holes 3.11 correspond to the anchor rods 1 one by one, namely, the anchor rods 1 are arranged in each anchor rod hole 3.11.
Further, I-shaped steel 2.1 is arranged in the micro pile 2; a web plate 3.1 of the channel steel 3 is welded with an I-shaped steel 2.1; ensuring the structural stability.
Further, concrete beam 4 parcel is in the periphery of stock 1, miniature pile 2 and channel-section steel 3 junction, and seamless meeting, the formation overall structure of old retaining wall makes the common atress of overall structure, provides interim reinforcement, guarantee operation personnel and wall rear building safety in the work progress to old retaining wall in the work progress.
Examples
In the embodiment, a row of anchor rods 1 are arranged at the middle elevation of an old high and steep retaining wall 5, the distance between the anchor rods 1 is 1m, and the exposed length of an anchor head 1.1 is more than or equal to 1 m;
taking the elevation of an anchor rod 1 as the elevation of a pile top, arranging a row of micro piles 2, wherein the pile spacing of the micro piles 2 is 1m, the pile body of each micro pile 2 is close to the wall body of an old high and steep retaining wall 5, and the length of the micro piles 2 penetrating through the foundation of the old high and steep retaining wall 5 is determined according to calculation;
a channel steel 3 is arranged at the height position of the anchor rod 1, the channel steel 3 is outward opened, and a hole is formed in a web plate 3.1 according to the anchor rod 1;
a web plate 3.1 of the channel steel 3 is connected with an I-shaped steel 2.1 of the micro pile 2 by welding;
at 3 outer formworks of channel-section steel, connect parcel wherein with channel-section steel 3 and miniature pile 2 and stock 1, and pour the concrete along channel-section steel 3, with stock 1, miniature pile 2 wraps up with channel-section steel 3's connector and channel-section steel 3 itself, form concrete beam 4, and seamless between concrete beam 4 and the old high steep retaining wall 5, guarantee stock 1, miniature pile 2, channel-section steel 3, the overall structure system that concrete beam 4 formed, common atress, provide interim reinforcement to old retaining wall in the work progress, operating personnel and wall rear building safety in the guarantee work progress.
And (4) conclusion: this embodiment can carry out effective restraint to old retaining wall deformation fast, can effectively prevent old retaining wall deformation further aggravation before permanent support engineering completion, and can provide the protection to the operation of construction period.
Other parts not described belong to the prior art.
Claims (6)
1. The utility model provides a deep foundation old high steep retaining wall temporary reinforcement structure which characterized in that: comprises an anchor rod (1), a micro pile (2), channel steel (3) and a concrete beam (4);
the anchor rod (1) penetrates through the channel steel (3) and is arranged on the old high and steep retaining wall (5); the anchor head (1.1) of the anchor rod (1) extends out of the old high and steep retaining wall (5) and is positioned on the outer side of the old high and steep retaining wall (5);
the pile body of the miniature pile (2) is close to and/or penetrates through the outer side wall body of the old high and steep retaining wall (5);
the channel steel (3) is arranged at the upper end of the miniature pile (2);
the concrete beam (4) is arranged at the joint of the anchor rod (1), the micro pile (2) and the channel steel (3) and is seamlessly connected with the old high and steep retaining wall (5).
2. A temporary reinforcing structure for a deep foundation old high and steep retaining wall according to claim 1, wherein: a web plate (3.1) of the channel steel (3) is provided with an anchor rod hole (3.11); the anchor rod (1) extends out of the anchor rod hole (3.11);
the web plate (3.1) is connected with the upper end of the micro pile (2) in a welding way.
3. A temporary reinforcing structure for a deep foundation old high and steep retaining wall according to claim 2, wherein: the anchor rod (1) is obliquely arranged;
the anchor rod (1) is provided with a plurality of bolts; the anchor rods (1) are arranged at equal intervals and are positioned on the old high and steep retaining wall (5) at the same height;
the distance between two adjacent anchor rods (1) is 1 m;
the exposed length of the anchor head (1.1) is more than or equal to 1 m.
4. A temporary reinforcing structure for a deep foundation old high and steep retaining wall according to claim 3, wherein: the length of the pile length of the miniature pile (2) exceeds the length of the old high and steep retaining wall (5) foundation is determined according to calculation;
a plurality of micro piles (2) are arranged; a plurality of micro piles (2) are arranged at equal intervals; the distance between two adjacent micro piles (2) is 1 m;
the number of the anchor rod holes (3.11) is equal to that of the anchor rods (1).
5. A temporary reinforcing structure for a deep foundation old high and steep retaining wall according to claim 4, wherein: i-shaped steel (2.1) is arranged in the micro pile (2); the web plate (3.1) is connected with the I-shaped steel (2.1) in a welding way.
6. A temporary reinforcing structure for a deep foundation old high and steep retaining wall according to claim 5, wherein: the concrete beam (4) wraps the periphery of the connecting position of the anchor rod (1), the micro pile (2) and the channel steel (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120715355.4U CN215715498U (en) | 2021-04-08 | 2021-04-08 | Interim reinforced structure of old high steep retaining wall of deep foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120715355.4U CN215715498U (en) | 2021-04-08 | 2021-04-08 | Interim reinforced structure of old high steep retaining wall of deep foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215715498U true CN215715498U (en) | 2022-02-01 |
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ID=80028729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120715355.4U Active CN215715498U (en) | 2021-04-08 | 2021-04-08 | Interim reinforced structure of old high steep retaining wall of deep foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215715498U (en) |
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2021
- 2021-04-08 CN CN202120715355.4U patent/CN215715498U/en active Active
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