CN212452655U - A reinforced structure that is used for SMW worker method stake to strut system - Google Patents
A reinforced structure that is used for SMW worker method stake to strut system Download PDFInfo
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- CN212452655U CN212452655U CN202020081691.3U CN202020081691U CN212452655U CN 212452655 U CN212452655 U CN 212452655U CN 202020081691 U CN202020081691 U CN 202020081691U CN 212452655 U CN212452655 U CN 212452655U
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Abstract
The utility model discloses a reinforced structure for SMW worker method stake support system, throw including SMW worker method stake support system, foundation ditch outside anchor rope, foundation ditch inboard and prop, foundation ditch SMW worker method stake support system includes and is consolidated at the bottom of SMW worker method stake, crown beam and the inboard triaxial stirring pile foundation of foundation ditch, the anchor rope in the foundation ditch outside is anchored respectively at both ends and is beaten the steel sheet pile of establishing and the prestressing force steel strand wires on the system worker steel in the foundation ditch outside, the inboard throwing of foundation ditch props for both ends supports the steel pipe support on pouring bottom plate and SMW worker method stake support system crown beam earlier respectively, the utility model discloses can effectually solve to consolidate the complicated, permanent engineering volume of construction, reinforce the effect inequality scheduling problem, guaranteed that SMW worker method stake support system security and stability have characteristics such as construction speed is fast, economic benefits is good simultaneously.
Description
Technical Field
The utility model belongs to the technical field of building engineering foundation pit retaining structure consolidates, concretely relates to a reinforced structure that is used for SMW worker method stake to strut system is applicable to weak stratum foundation pit and struts the reinforcement construction.
Background
Along with the development of urbanization, the surrounding environment of an engineering construction site is more and more complex, the disturbance is inevitably generated to the existing stratum in the excavation process of the foundation pit, particularly, the requirement on the allowable displacement of the enclosure structure is very strict in the foundation pit construction of the silt stratum which is close to a road, has poor natural bearing capacity and is easy to deform due to disturbance, once the allowable range is exceeded, the influence on the surrounding buildings and the construction safety is very easy to cause, and therefore, the stability of the foundation pit supporting structure is particularly important. The SMW construction method pile support is a common foundation pit support mode, is limited by construction technology, has certain limitation on the depth of the pile in the construction method, comprehensively considers the economic and reasonable principle, adopts a recyclable reinforcement measure to temporarily reinforce the SMW construction method pile support foundation pit support structure, can effectively improve the stability of the support structure, ensures the construction safety and reduces the construction cost.
SUMMERY OF THE UTILITY MODEL
A first aim at provides a consolidate effectual, the convenient construction of construction, have enough to meet the need the strong reinforced structure who is used for SMW worker method stake to strut the system.
The first object of the present invention is achieved by the following technical measures: a reinforcing structure for an SMW construction method pile supporting system comprises foundation pit outer anchor cables and foundation pit inner side cast supports which are arranged on two sides of the SMW construction method pile supporting system respectively, wherein the SMW construction method pile supporting system comprises construction method pile three-shaft stirring piles, foundation reinforcing three-shaft stirring piles on the inner side of a foundation pit, I-shaped steel inserted into the SMW construction method piles and crown beams poured on the tops of the SMW construction method piles, the foundation pit outer anchor cables are steel sheet piles with two ends anchored on the outer side of the foundation pit respectively and prestressed steel strands on I-shaped steel in the SMW construction method pile supporting system, and the foundation pit inner side cast supports are steel pipe supports with two ends supporting a pouring bottom plate and the top beams of the SMW construction method pile supporting system respectively.
As an improvement, an anchor cable hole is reserved in an I-shaped steel top web plate of the triaxial mixing pile of the pile for the construction method, so that the anchor cable can be conveniently perforated.
As an improvement, the reinforcing width and depth of the foundation reinforcing triaxial mixing pile at the inner side of the foundation pit are not smaller than the excavation depth of the foundation pit, and the overlapping length is consistent with the construction method pile triaxial mixing pile.
As an improvement, the anchor cable is a plurality of bundles of prestressed steel strands, and the arrangement distance of the prestressed steel strands is determined according to the calculation requirement.
As an improvement, the anchor cable on the outer side of the foundation pit is anchored on an I-shaped steel waist beam on the back side of the Larsen steel sheet pile through an anchor, and the I-shaped steel waist beam is formed by welding 22# a I-shaped steel and a steel backing plate.
As an improvement, the Larsen steel sheet pile is a Larsen steel sheet pile SKSP-IV, the wall thickness is 15.5mm, and the effective length of the Larsen steel sheet pile is consistent with that of a triaxial mixing pile of the pile in the construction method.
As an improvement, the inner side of the foundation pit is supported by a phi 609 multiplied by 12 steel pipe, and the arrangement distance of the inner side of the foundation pit is consistent with the anchor cable on the outer side of the foundation pit.
As an improvement, an H400 double-spliced steel enclosing purlin is arranged between the top of the cast-support on the inner side of the foundation pit and a top beam of the pile support system based on the SMW construction method, and the H400 double-spliced steel enclosing purlin and the steel pipe support are fully welded.
As the improvement, the bottom of the cast-in-place support on the inner side of the foundation pit is fully welded with the steel corbel arranged on the prior pouring bottom plate, and the anchoring steel bars embedded in the prior pouring bottom plate are connected with the embedded steel plates of the steel corbel through perforation welding.
Compared with the prior art, the utility model has the advantages of as follows:
(1) through setting up foundation ditch outside anchor rope and foundation ditch inboard throw and prop, draw the interior stake of propping and consolidate SMW worker method pile support system in step outward, great increase the stability of foundation ditch support system, triaxial stirring stake reinforcing foundation ditch face empty side ground simultaneously, the effectual intensity that increases existing ground, it is effectual to consolidate.
(2) The utility model discloses a structure construction convenience, machinery, material etc. that drop into are conventional resource, can avoid the ground to link the wall grooving machine, dig the relevant problem that large equipment admission and supporting facilities such as brill, crawler crane brought soon, construction speed is fast, efficient.
(3) The utility model discloses strutting the system to SMW worker method stake and strengthening, I-steel, steel sheet pile, anchor rope, steel pipe that use support etc. all can have enough to meet the need the use many times, and the operating expenses reduces obviously, and economic benefits is good.
Drawings
Fig. 1 is a schematic sectional view of an SMW-process pile support system of the present invention, which is used for a reinforcing structure of the SMW-process pile support system.
Fig. 2 is the utility model relates to a foundation ditch outside anchor rope section sketch map that is used for reinforced structure of SMW worker method stake support system.
Fig. 3 is the utility model relates to a big appearance of anchor rope anchor outside foundation ditch that is used for reinforced structure of SMW worker method stake supporting system.
Fig. 4 is the utility model relates to a big appearance drawing is connected to outer anchor rope I-shaped steel waist rail of foundation ditch that is used for reinforcing structure of SMW worker method stake support system.
Fig. 5 is the utility model relates to a steel sheet pile meets steel strand wires department construction transverse section view that is used for reinforced structure of SMW worker method stake support system.
Fig. 6 is the utility model relates to a throw in foundation ditch of a reinforced structure who is used for SMW worker method stake to strut system and prop section sketch map.
Fig. 7 is the utility model discloses a cast of reinforced structure who is used for SMW worker method stake to strut system props big appearance drawing of steel corbel.
Figure 8 is the utility model relates to a throwing of a reinforced structure who is used for SMW worker method stake to strut system props double pin steel and encloses purlin concatenation sketch map.
Fig. 9 is an overall schematic diagram of the utility model discloses a reinforced structure for SMW worker method stake support system.
Reference numerals: 1. an SMW construction method pile supporting system comprises 101 construction method pile three-axis mixing piles, 102, I-shaped steel, 103, crown beams, 104, foundation reinforcing three-axis mixing piles, 105, I-shaped steel top reserved anchor cable holes, 2, foundation pit outer side anchor cables, 201, prestressed steel strands, 202, Larsen steel sheet piles (SKSP-IV), 203, I-shaped steel waist beams, 204, anchorage devices, 205, butt weld seam (full weld), 206, the steel backing plate, 3, the foundation ditch inboard is thrown and is propped, 301, the steel pipe supports, 302, H400 double pin steel purlin encloses the purlin, 303, the steel bracket, 304, pour the bottom plate earlier, 305, pour the earthwork excavation line when the bottom plate construction earlier, 306, steel bracket welding steel sheet (t is 30mm), 307, steel bracket anchor reinforcing bar (18mm), 308, double pin steel purlin encloses purlin web connecting plate (t is 20mm, interval 400mm), 309, double pin steel purlin encloses purlin flange connecting plate (t is 20mm, interval 400 mm).
Detailed Description
In order to better understand the technical solution of the present invention, the following describes the present invention in further detail with reference to the accompanying drawings of the embodiment. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a reinforced structure for SMW worker method stake support system which characterized in that: the ground pit outer anchor cable 2 and the ground pit inner side cast support 3 are respectively arranged on two sides of a pile supporting system 1 of the SMW construction method, the pile supporting system 1 of the SMW construction method comprises a construction method pile three-shaft stirring pile 101, a foundation reinforcing three-shaft stirring pile 104 on the inner side of the ground pit, an I-shaped steel 102 inserted into the pile of the SMW construction method and a crown beam 103 poured on the top of the pile of the SMW construction method, the anchor cable 2 on the outer side of the ground pit is a steel plate pile 202 with two ends anchored on the outer side of the ground pit and a prestressed steel strand 201 on the I-shaped steel 102 of the pile supporting system 1 of the SMW construction method, and the ground pit inner side cast support 3 is a steel pipe support 301 with two ends respectively supporting a.
In a preferred embodiment of the present invention, a pre-reserved anchor cable hole 105 is formed in a web at the top end of an i-shaped steel 102 of the triaxial mixing pile 101 of the construction-method pile, so as to facilitate the anchor cable to be perforated.
As a preferred embodiment of the present invention, the reinforcing width and depth of the foundation reinforcing triaxial mixing pile 104 inside the foundation pit are not less than the excavation depth of the foundation pit, the overlapping length is the same as that of the construction method pile triaxial mixing pile 101, and the cement mixing amount is not less than 20%.
As a preferred embodiment of the present embodiment, the anchor cable 2 is a plurality of bundles of prestressed steel strands 201, and the arrangement distance is determined according to the calculation requirement.
In a preferred embodiment of the present invention, the anchor cable 2 outside the foundation pit is anchored on an i-beam 203 at the back side of the larsen steel sheet pile 202 through an anchor 204, and the i-beam 203 is formed by welding 22# a i-beams and steel backing plates.
In a preferred embodiment of the present invention, the larsen steel sheet pile 202 is a larsen steel sheet pile (SKSP-iv), the wall thickness is 15.5mm, and the effective length is consistent with the construction method pile triaxial mixing pile 101.
As a preferred embodiment of this embodiment, the foundation pit inner side slinger 3 is supported by a steel pipe support 301 with a diameter of phi 609 × 12, and the arrangement distance is consistent with the anchor cable 2 on the outer side of the foundation pit.
As a preferred embodiment of the embodiment, an H400 double-spliced steel surrounding purlin 302 is arranged between the top of the inner side cast support 3 of the foundation pit and the top beam 103 of the SMW construction method pile support system 1, and the H400 double-spliced steel surrounding purlin 302 and the steel pipe support 301 are fully welded.
As a preferred embodiment of this embodiment, the bottom of the inner side casting brace 3 of the foundation pit is fully welded to the steel corbel 303 disposed on the prior casting bottom plate 304, and the anchor steel bar 307 embedded in the prior casting bottom plate is connected to the steel corbel embedded steel plate 306 by perforation welding.
The utility model discloses a when concrete implementation: firstly, constructing a pile supporting system 1 in an SMW construction method, inserting I-shaped steel 103 into a three-axis stirring pile 101 in the construction method and a foundation reinforcing three-axis stirring pile 104, and excavating a construction crown beam 103 after the three-axis stirring pile 101 in the construction method reaches design strength; secondly, constructing an anchor cable 2 on the outer side of the foundation pit, driving a Larsen steel sheet pile (SKSP-IV) 202, erecting an I-shaped steel waist beam 203, installing a steel base plate 206 and an anchorage device 204, penetrating a prestressed steel strand 201 into an anchor cable hole 105 reserved in the top of the I-shaped steel, tensioning the prestressed steel strand 201 to a designed tension and anchoring; excavating the earthwork on the inner side of the foundation pit again until an earthwork excavation line 305 is formed during construction of a first pouring bottom plate, constructing the first pouring bottom plate 304, synchronously embedding and installing a steel bracket 303, maintaining the first pouring bottom plate 304 to the designed strength, erecting an H400 double-spliced steel enclosing purlin 302 on the inner side of the crown beam 103, excavating a groove, installing a steel pipe support 301 in place, and strictly forbidding first excavation and later support; then, excavating earthwork below an earthwork excavation line 305, constructing a bottom plate and a side wall in the range of the cast-support 3 at the inner side of the foundation pit, backfilling a gap between the side wall and the three-axis stirring pile 101 of the construction method pile by using C20 concrete, wherein the backfilling height is not less than 1 m; and then removing the anchor cable 2 on the outer side of the foundation pit and the cast support 3 on the inner side of the foundation pit, and transferring the material equipment to the next construction section for construction.
The above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and for those skilled in the art, other variations or changes in different forms can be made on the basis of the above descriptions, and all embodiments cannot be exhausted here, and all the obvious variations or changes introduced by the technical solution of the present invention are still in the scope of protection of the present invention.
Claims (9)
1. The utility model provides a reinforced structure for SMW worker method stake support system which characterized in that: the ground pit outer anchor cable support structure comprises ground pit outer anchor cables (2) and ground pit inner side cast supports (3) which are arranged on two sides of a ground pile support system (1) of an SMW construction method respectively, wherein the ground pile support system (1) of the SMW construction method comprises a construction method pile three-shaft stirring pile (101), a ground foundation reinforced three-shaft stirring pile (104) on the inner side of the ground pit, I-shaped steel (102) inserted into the SMW construction method pile and a crown beam (103) poured on the top of the ground pile (1) of the SMW construction method, the ground pit outer anchor cables (2) are prestressed steel strands (201) with two ends anchored on a steel sheet pile (202) arranged on the outer side of the ground pit and the I-shaped steel (102) in the ground pile support system (1) of the SMW construction method respectively, and the ground pit inner side cast supports (3) are steel pipe supports (301.
2. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: reserved anchor cable holes (105) are formed in a web plate at the top end of an I-shaped steel (102) of the triaxial mixing pile (101) of the pile for the construction method, so that anchor cable perforation is facilitated.
3. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: the reinforcing width and depth of the foundation reinforcing triaxial mixing pile (104) on the inner side of the foundation pit are not smaller than the excavation depth of the foundation pit, and the overlapping length is consistent with that of the construction method pile triaxial mixing pile (101).
4. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: the anchor cable (2) is a plurality of bundles of prestressed steel strands (201), and the arrangement distance of the prestressed steel strands is determined according to the calculation requirement.
5. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: the anchor cable (2) on the outer side of the foundation pit is anchored on an I-shaped steel waist beam (203) on the back side of the Larsen steel sheet pile (202) through an anchor (204), and the I-shaped steel waist beam (203) is formed by welding 22# a I-shaped steel and a steel backing plate.
6. The reinforcing structure for an SMW-process pile support system according to claim 5, wherein: the Larsen steel sheet pile (202) is a Larsen steel sheet pile SKSP-IV, the wall thickness is 15.5mm, and the effective length of the Larsen steel sheet pile is consistent with that of the construction method pile triaxial mixing pile (101).
7. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: the inner side throwing support (3) of the foundation pit adopts a phi 609 multiplied by 12 steel pipe support (301), and the arrangement distance of the inner side throwing support is consistent with that of the anchor cable (2) on the outer side of the foundation pit.
8. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: h400 double-spliced profile steel surrounding purlin (302) is arranged between the top of the cast support (3) on the inner side of the foundation pit and a crown beam (103) of the pile support system (1) adopting the SMW construction method, and the H400 double-spliced profile steel surrounding purlin (302) and a steel pipe support (301) are fully welded.
9. The reinforcing structure for an SMW-process pile support system according to claim 1, wherein: the bottom of the cast-in-place support (3) on the inner side of the foundation pit is fully welded with a steel corbel (303) arranged on a cast-in-place bottom plate (304), and an anchoring reinforcing steel bar (307) embedded in the cast-in-place bottom plate is connected with a steel corbel embedded steel plate (306) through perforation welding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020081691.3U CN212452655U (en) | 2020-01-15 | 2020-01-15 | A reinforced structure that is used for SMW worker method stake to strut system |
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| CN202020081691.3U CN212452655U (en) | 2020-01-15 | 2020-01-15 | A reinforced structure that is used for SMW worker method stake to strut system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119198A (en) * | 2020-01-15 | 2020-05-08 | 中建铁路投资建设集团有限公司 | A reinforced structure that is used for SMW worker method stake to strut system |
| CN114809041A (en) * | 2021-11-28 | 2022-07-29 | 中铁十四局集团第二工程有限公司 | Novel building weir method enclosure structure and construction method thereof |
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2020
- 2020-01-15 CN CN202020081691.3U patent/CN212452655U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119198A (en) * | 2020-01-15 | 2020-05-08 | 中建铁路投资建设集团有限公司 | A reinforced structure that is used for SMW worker method stake to strut system |
| CN114809041A (en) * | 2021-11-28 | 2022-07-29 | 中铁十四局集团第二工程有限公司 | Novel building weir method enclosure structure and construction method thereof |
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