CN215562645U - Combined device for three-face hollow continuous wall and prestressed anchor rod - Google Patents
Combined device for three-face hollow continuous wall and prestressed anchor rod Download PDFInfo
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- CN215562645U CN215562645U CN202120559350.7U CN202120559350U CN215562645U CN 215562645 U CN215562645 U CN 215562645U CN 202120559350 U CN202120559350 U CN 202120559350U CN 215562645 U CN215562645 U CN 215562645U
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Abstract
The utility model discloses a combination device for a three-face hollow continuous wall and a prestressed anchor rod, which comprises: the continuous wall comprises a continuous wall, a pre-embedded assembly, a pressure-bearing plate assembly and a prestressed anchor rod; the continuous wall is arranged on the outer side of the three-faced hollow deep foundation pit, the embedded assembly is fixedly arranged in the continuous wall, and the prestressed anchor rod penetrates through the embedded assembly to be connected with the bearing plate assembly; the embedded assembly comprises an embedded steel sleeve and an embedded base plate, the embedded steel sleeve is obliquely arranged in the diaphragm wall, the inner side of the embedded base plate is fixedly connected with the high end of the embedded steel sleeve, and the bearing plate assembly is arranged on the outer side of the embedded base plate. The continuous wall is adopted to replace the row piles, so that the problems of small rigidity, large pile body displacement and large occupied area are solved, the integrity is better, the soil body can be prevented from losing, and the deformation of the building is in a controllable range.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a combined device for a three-face hollow continuous wall and a prestressed anchor rod.
Background
The three-face hollow deep foundation pit is in a hollow state in the three directions except one direction in the plane direction of the deep foundation pit, and for three-face hollow deep foundation pits adjacent to a high-rise building, a row pile is usually adopted to be combined with a prestressed anchor rod for supporting, and a curtain among piles is adopted for preventing water. However, the rigidity of the row piles is relatively small, the displacement of the pile body is large, a large place needs to be occupied, sufficient places cannot be provided for three-side open deep foundation pits adjacent to a high-rise building, and when the inter-pile curtain is adopted for water prevention, water and soil loss is caused due to leakage among the piles due to instability of curtain construction.
Therefore, for three-side-facing hollow deep foundation pits next to a high-rise building, the deformation of the foundation pit must be strictly controlled, and strict measures must be taken to prevent water and soil loss, so as to prevent the safety of the next-to-rise building from being harmed due to the deformation of the foundation pit.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model designs a combined device for a three-face hollow continuous wall and a prestressed anchor rod, which comprises the following components: the continuous wall comprises a continuous wall, a pre-embedded assembly, a pressure-bearing plate assembly and a prestressed anchor rod; the continuous wall is arranged on the outer side of the three-faced hollow deep foundation pit, the embedded assembly is fixedly arranged in the continuous wall, and the prestressed anchor rod penetrates through the embedded assembly to be connected with the bearing plate assembly; the embedded assembly comprises an embedded steel sleeve and an embedded base plate, the embedded steel sleeve is obliquely arranged in the diaphragm wall, the inner side of the embedded base plate is fixedly connected with the high end of the embedded steel sleeve, and the bearing plate assembly is arranged on the outer side of the embedded base plate.
Preferably, the bearing plate subassembly includes bearing plate and bearing plate gusset, and the bearing plate gusset is right trapezoid structure, and right trapezoid's oblique waist angle and pre-buried steel casing pipe inclination phase-match, right trapezoid's oblique waist and pre-buried backing plate are connected, right trapezoid's right angle waist and bearing plate fixed connection.
Preferably, the number of the pressure bearing plate angle braces is 2, and the pressure bearing plate angle braces are respectively arranged on two sides of the pressure bearing plate.
Preferably, the pressure bearing plate angle support is formed by integrally cutting a Q235 steel plate, wherein the length of the upper bottom edge of the pressure bearing plate angle support is 10 +/-0.5 mm, the length of the lower bottom edge of the pressure bearing plate angle support is 90 +/-0.5 mm, and the length of the upper bottom edge of the pressure bearing plate angle support is 300 +/-0.5 mm.
Preferably, the included angle between the embedded steel sleeve and the horizontal plane is 15 degrees, and the base angle of the pressure bearing plate angle support is 75 degrees.
Preferably, the embedded steel sleeve adopts a round steel pipe with the inner diameter of 180mm and the wall thickness of 4 +/-1 mm, and two ends of the embedded steel sleeve are of a structure of being obliquely cut by 15 degrees.
Preferably, the embedded backing plate is of a rectangular structure, a first hole is formed in the center of the embedded backing plate and is of a circular structure, and the diameter of the first hole is 180 mm.
Preferably, the bearing plate is of a rectangular structure, a second hole is formed in the center of the bearing plate and is of a circular structure, and the diameter of the second hole is matched with the outer diameter of the prestressed anchor rod.
Preferably, 2 support plate corner supports are respectively fixed at positions 75mm away from the edges of the support plates.
Preferably, the pressure bearing plate angle brace and the pressure bearing plate are fixedly connected by welding.
Compared with the closest prior art, the utility model has the beneficial effects that:
1. the combined device for the three-face hollow continuous wall and the prestressed anchor rod adopts the continuous wall to replace the piling, not only overcomes the problems of small rigidity, large pile body displacement and large occupied area, but also has better integrity, can prevent soil from losing and ensures that the deformation of the building is in a controllable range.
2. The utility model is used for the embedded assembly and the pressure-bearing plate assembly provided by the combined device of the three-face hollow continuous wall and the prestressed anchor rod, not only enables the continuous wall and the prestressed anchor rod to be more conveniently connected, but also enables the underground continuous wall to have higher bending rigidity, better integrity and better water stopping performance.
Drawings
FIG. 1 is a schematic structural view of the combined apparatus for a triple-faced hollow diaphragm wall and a prestressed anchor according to the present invention.
Fig. 2 is a schematic structural diagram of the embedded assembly of the present invention.
FIG. 3 is a schematic structural view of a pressure plate assembly of the present invention.
Reference numerals:
1-embedded assembly, 11-embedded steel sleeve, 12-embedded base plate, 2-bearing plate assembly, 21-bearing plate, 22-bearing plate angle brace and 3-prestressed anchor rod.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1 to 3, the present invention provides a combined apparatus for a triple-faced hollow continuous wall and a prestressed anchor, comprising: the continuous wall, pre-buried subassembly 1, bearing plate subassembly 2 and prestressed anchorage pole 3. The diaphragm wall sets up in the outside of three face air deep basal pits, and pre-buried subassembly 1 is fixed to be set up in the diaphragm wall, and pre-stressed anchor 3 passes pre-buried subassembly 1 and is connected with bearing plate subassembly 2. The embedded assembly 1 comprises an embedded steel sleeve 11 and an embedded backing plate 12, the embedded steel sleeve 11 is obliquely arranged in the diaphragm wall, the inner side of the embedded backing plate 12 is fixedly connected with the high end of the embedded steel sleeve 11, and the bearing plate assembly 2 is arranged on the outer side of the embedded backing plate 12.
In a preferred embodiment, the bearing plate assembly 2 includes bearing plate 21 and bearing plate gusset 22, and the bearing plate gusset 22 is the right trapezoid structure, and the oblique waist angle of right trapezoid matches with pre-buried steel casing 11 inclination, and the oblique waist of right trapezoid is connected with pre-buried backing plate 12, and right trapezoid's right angle waist and bearing plate 21 fixed connection, and bearing plate gusset 22 adopts welded fastening to be connected with bearing plate 21.
In a preferred embodiment, the number of the bearing plate gussets 22 is 2, and they are respectively disposed at both sides of the bearing plate 21. Preferably, 2 pressure bearing plate gussets 22 are fixed at positions 75mm from the edge of the pressure bearing plate 21, respectively.
In a preferred embodiment, the bearing plate gusset 22 is integrally cut from a Q235 steel plate, wherein the length of the upper bottom edge of the bearing plate gusset 22 is 10 ± 0.5mm, the length of the lower bottom edge is 90 ± 0.5mm, and the length of the height is 300 ± 0.5 mm. The included angle between the embedded steel sleeve 11 and the horizontal plane is 15 degrees, and the base angle of the bearing plate angle brace 22 is 75 degrees. The embedded steel sleeve 11 is a round steel pipe with the inner diameter of 180mm and the wall thickness of 4 +/-1 mm, and two ends of the embedded steel sleeve 11 are both in a beveling 15-degree structure.
In a preferred embodiment, the embedded backing plate 12 has a rectangular structure, and a first hole is formed in the center of the embedded backing plate 12, the first hole has a circular structure, and the diameter of the first hole is 180 mm. The bearing plate 21 is of a rectangular structure, a second hole is formed in the center of the bearing plate 21 and is of a circular structure, and the diameter of the second hole is matched with the outer diameter of the prestressed anchor rod 3.
Example 2
The construction method of the united apparatus for a three-faced hollow continuous wall and a prestressed anchor according to the present invention will be described in detail.
The embedded steel sleeve 11 and the embedded backing plate 12 are made of Q235 steel, an angle of 15 degrees is formed between the embedded steel sleeve 11 and the embedded backing plate, the embedded steel sleeve 11 is made of steel pipes with the inner diameter of 180mm and the wall thickness of 3-5mm, the length of the embedded steel sleeve 11 is set to 730mm when the wall thickness is 800mm, the length of the embedded steel sleeve 11 is set to 940mm when the wall thickness is 1000mm, the size of the embedded backing plate 12 is set to 350 multiplied by 10mm, a round hole with phi 180 is formed in the center of the embedded backing plate, and the embedded steel sleeve 11 is welded to the round hole of the embedded backing plate 12 in an aligning mode.
After the embedded steel sleeve 11 and the embedded backing plate 12 are welded into a whole, the embedded steel sleeve 11 and the embedded backing plate 12 filled with flexible materials are welded together with the main ribs of the underground continuous wall according to the designed elevation of the anchor rod.
After the underground continuous wall is grooved, the reinforcement cage is hung in the groove, and then the wall body concrete is poured.
And after the concrete strength of the underground continuous wall meets the requirement, the earthwork is excavated step by step. And after the anchor rod is excavated to the designed elevation of the anchor rod, manually removing and chiseling the embedded steel sleeve according to the elevation of the anchor rod, and cleaning the residual concrete at the orifice of the sleeve.
Adjusting the angle of the drill rod to be consistent with that of the steel sleeve, starting the drilling machine, drilling the drill rod into a soil layer section by section through the steel sleeve, putting the steel strand after pore forming is finished, and then grouting.
After the strength of the slurry meets the requirement, a bearing plate component 2 is installed at the orifice of the anchor rod, the size of the bearing plate 21 is 300 multiplied by 30mm, a round hole with phi 60 is arranged at the center, a bearing plate corner support 22 is welded at a position 75mm away from the edge of the bearing plate 21, the bearing plate corner support 22 is of a right-angled trapezoid structure, the length of the upper edge and the lower edge is 10mm and 91mm, the height is 300mm, and the thickness is 30 mm.
After the bearing plate assembly 2 is welded, the bearing plate assembly 2 is placed at the hole opening of the anchor rod and aligned with the central hole of the embedded base plate 12, and the bearing plate assembly 2 and the embedded base plate are welded together.
And (3) tensioning the anchor rod after the pressure-bearing plate assembly 2 is welded to be qualified, excavating the next earthwork after tensioning the anchor rod, and sequentially constructing the lower anchor rod after excavating to the elevation of the lower anchor rod until the earthwork is excavated to the bottom of the groove.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention is included in the scope of the claims of the present invention filed as filed.
Claims (10)
1. A combination for a three-faced drywall and prestressed anchors, comprising: the continuous wall, the embedded assembly (1), the pressure-bearing plate assembly (2) and the prestressed anchor rod (3);
the continuous wall is arranged on the outer side of a three-face hollow deep foundation pit, the embedded component (1) is fixedly arranged in the continuous wall, and the prestressed anchor rod (3) penetrates through the embedded component (1) to be connected with the bearing plate component (2);
the embedded assembly (1) comprises an embedded steel sleeve (11) and an embedded backing plate (12), the embedded steel sleeve (11) is obliquely arranged in the diaphragm wall, the inner side of the embedded backing plate (12) is fixedly connected with the high end of the embedded steel sleeve (11), and the pressure-bearing plate assembly (2) is arranged on the outer side of the embedded backing plate (12).
2. The combined device for the triple-faced hollow diaphragm wall and the prestressed anchor rod as claimed in claim 1, wherein the bearing plate assembly (2) comprises a bearing plate (21) and a bearing plate corner support (22), the bearing plate corner support (22) is of a right trapezoid structure, the inclined waist angle of the right trapezoid is matched with the inclined angle of the embedded steel casing pipe (11), the inclined waist of the right trapezoid is connected with the embedded backing plate (12), and the right waist of the right trapezoid is fixedly connected with the bearing plate (21).
3. A combined apparatus for a triple-faced hollow continuous wall and prestressed anchor as claimed in claim 2, wherein the number of said bearing plate angle braces (22) is 2, respectively provided at both sides of said bearing plate (21).
4. The combined structure of a prestressed anchor for a three-faced hollow continuous wall according to claim 2, wherein said bearing plate gusset (22) is integrally cut out of a Q235 steel plate, and wherein the length of the upper base of said bearing plate gusset (22) is 10 ± 0.5mm, the length of the lower base thereof is 90 ± 0.5mm, and the length of the height thereof is 300 ± 0.5 mm.
5. The combination of a prestressed anchorage for a three-faced hollow continuous wall according to claim 2, wherein the angle between the embedded steel casing (11) and the horizontal plane is 15 degrees, and the base angle of the bearing plate angle brace (22) is 75 degrees.
6. The combination of a prestressed anchorage for three-face hollow continuous wall according to claim 5, wherein the embedded steel casing (11) is a round steel pipe with an inner diameter of 180mm and a wall thickness of 4 ± 1mm, and both ends of the embedded steel casing (11) are beveled by 15 degrees.
7. The combination of a prestressed anchorage for three-face hollow continuous wall according to claim 6, characterized in that the pre-buried anchor plate (12) is of rectangular configuration, the center of the pre-buried anchor plate (12) is provided with a first hole of circular configuration, and the diameter of the first hole is 180 mm.
8. A combination for a three-faced hollow continuous wall and prestressed anchor according to claim 2, characterized in that the bearing plate (21) is of rectangular configuration, the bearing plate (21) being provided in its centre with a second hole of circular configuration, the diameter of the second hole matching the external diameter of the prestressed anchor (3).
9. A combined structure for a triple-faced hollow continuous wall and prestressed anchor according to claim 3, wherein 2 supporting gusset (22) are respectively fixed at a position 75mm away from the edge of the supporting plank (21).
10. The combination for a triple-faced hollow continuous wall and prestressed anchor as claimed in claim 9, wherein said bearing plate gusset (22) is fixedly connected to said bearing plate (21) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120559350.7U CN215562645U (en) | 2021-03-18 | 2021-03-18 | Combined device for three-face hollow continuous wall and prestressed anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120559350.7U CN215562645U (en) | 2021-03-18 | 2021-03-18 | Combined device for three-face hollow continuous wall and prestressed anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215562645U true CN215562645U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120559350.7U Active CN215562645U (en) | 2021-03-18 | 2021-03-18 | Combined device for three-face hollow continuous wall and prestressed anchor rod |
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| Country | Link |
|---|---|
| CN (1) | CN215562645U (en) |
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2021
- 2021-03-18 CN CN202120559350.7U patent/CN215562645U/en active Active
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