CN211849461U - Recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling supporting system - Google Patents
Recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling supporting system Download PDFInfo
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- CN211849461U CN211849461U CN201922132492.0U CN201922132492U CN211849461U CN 211849461 U CN211849461 U CN 211849461U CN 201922132492 U CN201922132492 U CN 201922132492U CN 211849461 U CN211849461 U CN 211849461U
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Abstract
A recyclable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system is used for underground engineering foundation pit support engineering. The steel truss is provided with a T-shaped standard component and a square standard component, and the steel pipe pile and the anchor rod are recyclable. The T-shaped standard part lower end and the steel pipe pile upper end are both welded with circular flange plates, the T-shaped standard part and the steel pipe pile are connected through bolts, the square flange plates are welded at the side ends of the T-shaped standard part and the square standard part, and the T-shaped standard part and the square standard part are connected through bolts. The anchoring end of the recoverable anchor rod has two design methods, namely anchoring on a steel truss crown beam between the top of the rear row of steel pipe piles and the front row of steel pipe piles. The double rows of steel pipe piles, the recyclable anchor rods and the steel truss crown beam are connected into a whole to form a common space stress system. Compared with the traditional connection mode, the connecting device has the advantages of being recyclable, reusable, high in construction speed, high in overall rigidity and the like, and has good market application value.
Description
Technical Field
The utility model relates to a traffic, civil engineering's excavation supporting construction technical field especially relates to a recoverable excavation supporting construction system.
Background
The prefabricated building structure is developed rapidly in recent years, but is popularized slowly in the field of foundation pit engineering because the foundation pit supporting structure is difficult to assemble as a temporary underground structure. The traditional support system basically adopts cast-in-place construction, is disposable, has high cost and can not be recycled, and particularly when the anchor is adopted for supporting, an anchor rod (cable) is remained underground to generate underground garbage, thereby influencing the development and utilization of underground space outside a pit. In terms of the double-row steel pipe piles commonly adopted at present, the double-row steel pipe piles are widely designed and used under the conditions that the surrounding environment is complex and the inner support in a pit is inconvenient to use, and in order to ensure the integral rigidity of the double-row steel pipe piles, the double-row steel pipe piles are generally connected together by adopting the cast-in-place reinforced concrete crown beams, so that the integral rigidity of the double-row steel pipe piles is increased. Compared with single-row piles, the double-row piles have higher supporting performance, but the steel pipes are difficult to recycle after the foundation pit is backfilled. If the steel pipe pile needs to be recycled, the reinforced concrete crown beam needs to be broken, and a large amount of manpower and material resources are needed. Therefore, the materials are not recycled in the engineering, which causes material waste and is not in accordance with the engineering concept of green environmental protection.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned prior art, the utility model provides a recoverable double steel-pipe pile and steel truss crown beam combination anchor draw supporting system, by double steel-pipe pile, recoverable stock (cable), steel truss crown beam three atress in coordination, can improve supporting construction's stability, improve the efficiency of construction, can carry out standard component's processing and prefabrication, retrieve and recycle, solve cast-in-place crown beam structure and can not retrieve, the shortcoming of wasting of resources.
The technical scheme of the utility model as follows:
a recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling supporting system is used for a foundation pit supporting recoverable structure system and specifically comprises a T-shaped standard component, a square standard component, a recoverable steel pipe pile, a recoverable anchor rod (cable), a flange plate for connection and a high-strength bolt. The T-shaped standard part is arranged at the top of the recyclable steel pipe pile and is connected with the recyclable steel pipe pile through a circular flange plate and a bolt; the square standard part and the T-shaped standard part are transversely and longitudinally connected, and are connected by adopting a square flange plate and a bolt to form a uniform stress whole; the circular flange plate and the square flange plate are welded on a standard component in advance; the recoverable anchor rod (cable) has two different anchoring modes, one is anchored on the rear row of steel pipe piles, and the other is anchored on the square standard part of the steel truss between the front row of steel pipe piles.
T type standard component be steel pipe truss structure, for the prefabricated standard component of mill, further, T type standard component welds three square flange dish and a circular flange dish on four faces.
Circular steel-pipe pile structure, at its upper end welding circular flange dish, further, is connected through the circular flange dish of high strength bolt and T type standard component lower surface.
Square standard component structure, for the prefabricated standard component of mill, further, square flange dish is welded to square member both sides, and is further, connect square member and T type component through the bolt.
Double steel-pipe pile, front-seat and back row steel-pipe pile are connected through T type standard component and middle tie beam, and further, middle tie beam is formed for square standard component and T type standard component connection.
Recoverable stock (cable) but for the recovery type stock (cable) commonly used in the present engineering, further stock (cable) is constituteed and is become by anchor section, free section and anchor head, further, the anchor position of anchor head has two kinds of design, one kind is the top of anchoring at back row steel-pipe pile, and further, the bolt hole of fixed anchor head is reserved in advance to steel-pipe pile top ring flange.
Recoverable stock (cable) second kind anchoring mode for on the square standard component of anchoring between the steel-pipe pile of front bank, further, square standard component one side welding backing plate, welding wedge plate on the backing plate, the anchor head anchor is above that.
The utility model provides a recoverable double steel-pipe pile and steel truss crown beam combined anchor-pull supporting system, all components are factory prefabricated standard components, and assembly type construction is carried out during field installation, so that the operation is simple, the efficiency is high, and the components can be recovered and reused; and the cutting of the steel pipe pile, the crown beam and the connecting beam is avoided during the disassembly, the reuse rate of the steel pipe pile, the steel truss crown beam and the connecting beam is improved, and the economic benefit is improved.
Drawings
FIG. 1 is a schematic side view of the anchor rod of the double-row steel pipe pile anchoring and supporting system anchored at the top of the rear-row steel pipe pile
FIG. 2 is a schematic side view of the anchor rod of the double-row steel pipe pile anchoring and supporting system anchored on the square standard member between the front-row steel pipe piles
Fig. 3 is the utility model discloses double steel pipe pile anchor draws supporting system top view, wherein, fig. 3(a) is on the square standard component of steel truss of stock/cable anchor between the steel-pipe pile of front row, fig. 3(b) is the stock/cable anchor at back row steel-pipe pile top
FIG. 4 is a schematic view of a square standard part of a steel truss
FIG. 5 is a schematic view of a T-shaped standard part of a steel truss
FIG. 6 is a detailed view of the anchoring end, wherein FIG. 6(a) shows the anchoring end of the anchor rod/cable anchored on the square standard part of the steel truss between the front row of steel pipe piles, and FIG. 6(b) shows the anchoring end of the anchor rod/cable anchored on the top of the rear row of steel pipe piles
In the figure, 1 steel truss T-shaped standard part 2 square flange 3 steel truss square standard part 4 rear row steel pipe pile 5T-shaped standard part lower end circular flange 6 steel pipe pile upper end circular flange 7 front row steel pipe pile 8 recoverable anchor rod (cable) 9 anchor rod (cable) anchoring end 10 wedge plate 11 cushion 212 cushion 113 anchor rod (cable) anchoring end 15 conical block anchoring end on rear row steel pipe pile
Detailed Description
A recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system is characterized by comprising a steel truss T-shaped standard part (1), a steel truss square standard part (3), a square first flange (2) for connecting the T-shaped standard part with the square standard part, a front row of steel pipe piles (7), a rear row of steel pipe piles (4), a round second flange (5) at the lower end of the T-shaped standard part, a round third flange (6) at the upper end of the steel pipe piles and a recoverable anchor cable/rod (8), wherein the round third flange (6) at the upper end of the steel pipe piles is connected with the front row of steel pipe piles (7) through welding, the round second flange (5) at the lower end of the T-shaped standard part is connected with the T-shaped standard part (1) through welding, the front row of steel pipe piles (7) and the rear row of steel pipe piles (4) are respectively connected with the T-shaped standard part (1) through the second flange (5), the third flange (6) and bolts, the T-shaped standard part (1) is connected with the square standard part (3) through the square first flange plate (2) and the bolt, and the recoverable anchor cable/rod (8) is anchored on the rear row of steel pipe piles (4) or on the steel truss square standard part (3) between the front row of steel pipe piles (7).
Furthermore, the front row of steel pipe piles (7) and the rear row of steel pipe piles (4) are respectively connected with the T-shaped standard part (1) through a second flange plate (5) and a third flange plate (6) and bolts, and the T-shaped standard part (1) and the square standard part (3) are connected with the bolts through a square first flange plate (2), so that an integral space stress system is formed and can be recycled.
Furthermore, the T-shaped standard component (1) of the steel truss is provided with a circular second flange (5) welded on 1 surface and a square first flange (2) welded on 3 surfaces, and the square standard component (3) is provided with the square first flange (2) welded on two surfaces.
Furthermore, the T-shaped standard part (1) and the square standard part (3) are both factory prefabricated components.
The concrete implementation method of the recyclable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system comprises the following steps:
the first step is as follows: processing and testing standard components in a factory according to a design drawing;
the second step is that: and (5) transporting the standard component to a construction site, and driving the steel pipe pile into the soil to a fixed elevation by adopting a pile driver according to the advanced paying-off and pile foundation positioning.
The third step: welding the circular flange plate to the top of the steel pipe pile
A fourth step of: if the anchor rod (cable) is anchored on the back row of piles, the anchoring end of the anchor rod (cable) is fixed on a flange plate at the end part of the steel pipe pile by using bolts.
The fourth step: and hoisting the T-shaped standard part to the top of the steel pipe pile, and connecting the T-shaped standard part with the round steel pipe pile through a high-strength bolt.
The fifth step: and hoisting the square standard component, and respectively carrying out transverse and longitudinal connection with the T-shaped standard component through the high-strength bolt.
And a sixth step: anchoring the anchor rod (cable) on the top of the rear row of piles or anchoring the anchor rod (cable) on the square standard part in the middle of the front row of piles.
The seventh step: performing foundation pit excavation
And a sixth step: the basement construction finishes, and the foundation ditch is backfilled, carries out supporting construction and demolishs, lifts off the bolt earlier, and stock (cable) are retrieved, demolishs square standard component and T type standard component again, or lift off the bolt, with truss crown beam integral hoisting to spacious place and disassemble.
The seventh step: and (5) recovering the circular steel pipe pile. And (5) arranging all the supporting members and transporting the supporting members to other projects for reuse.
The utility model provides a recoverable double steel-pipe pile and steel truss crown beam combination anchor draw supporting system can improve double steel-pipe pile integral rigidity, improves the efficiency of construction, can carry out the mill's prefabrication of standard component and retrieve and recycle, solves cast-in-place crown beam structure and can not retrieve the shortcoming of wasting of resources.
Claims (4)
1. A recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system is characterized by comprising a steel truss T-shaped standard part (1), a steel truss square standard part (3), a square first flange (2) for connecting the T-shaped standard part with the square standard part, a front row of steel pipe piles (7), a rear row of steel pipe piles (4), a round second flange (5) at the lower end of the T-shaped standard part, a round third flange (6) at the upper end of the steel pipe piles and a recoverable anchor cable/rod (8), wherein the round third flange (6) at the upper end of the steel pipe piles is connected with the front row of steel pipe piles (7) through welding, the round second flange (5) at the lower end of the T-shaped standard part is connected with the T-shaped standard part (1) through welding, the front row of steel pipe piles (7) and the rear row of steel pipe piles (4) are respectively connected with the T-shaped standard part (1) through the second flange (5), the third flange (6) and bolts, the T-shaped standard part (1) is connected with the square standard part (3) through the square first flange plate (2) and the bolt, and the recoverable anchor cable/rod (8) is anchored on the rear row of steel pipe piles (4) or on the steel truss square standard part (3) between the front row of steel pipe piles (7).
2. The recyclable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system as claimed in claim 1, characterized in that: the front row of steel pipe piles (7) and the rear row of steel pipe piles (4) are respectively connected with the T-shaped standard part (1) through the second flange plate (5) and the third flange plate (6) and bolts, and the T-shaped standard part (1) and the square standard part (3) are connected with the bolts through the square first flange plate (2), so that an integral space stress system is formed and can be recycled.
3. The recyclable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system as claimed in claim 1, characterized in that: the steel truss T-shaped standard part (1) is characterized in that a circular second flange (5) is welded on 1 surface, a square first flange (2) is welded on 3 surfaces, and the square first flange (2) is welded on two surfaces by the square standard part (3).
4. The recyclable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling support system as claimed in claim 1, characterized in that: the T-shaped standard part (1) and the square standard part (3) are both factory prefabricated components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132492.0U CN211849461U (en) | 2019-12-03 | 2019-12-03 | Recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling supporting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922132492.0U CN211849461U (en) | 2019-12-03 | 2019-12-03 | Recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling supporting system |
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| Publication Number | Publication Date |
|---|---|
| CN211849461U true CN211849461U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922132492.0U Active CN211849461U (en) | 2019-12-03 | 2019-12-03 | Recoverable double-row steel pipe pile and steel truss crown beam combined anchoring and pulling supporting system |
Country Status (1)
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| CN (1) | CN211849461U (en) |
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