CN216787148U - Deep foundation pit composite type supporting structure - Google Patents
Deep foundation pit composite type supporting structure Download PDFInfo
- Publication number
- CN216787148U CN216787148U CN202220053637.7U CN202220053637U CN216787148U CN 216787148 U CN216787148 U CN 216787148U CN 202220053637 U CN202220053637 U CN 202220053637U CN 216787148 U CN216787148 U CN 216787148U
- Authority
- CN
- China
- Prior art keywords
- waist
- jig frame
- integral forming
- reinforcement
- reinforcement jig
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a deep foundation pit composite supporting structure, which comprises miniature steel pipe piles, prestressed anchor cables, soil nails and waist beams; the top beam integral forming reinforcement cage at the top of the miniature steel pipe pile is bound through a top beam integral forming reinforcement jig frame, soil nails and prestressed anchor cables are arranged in the soil layer in a staggered mode, a waist beam is arranged on the outer side of each prestressed anchor cable, waist beam integral forming reinforcements are bound through a waist beam integral forming reinforcement jig frame, and waist beam concrete pouring adopts a waist beam shaped template. The beneficial effects of the utility model are: waist rail reinforcement adopts the whole shaping reinforcement bed-jig of waist rail, and the structural style of bed-jig can guarantee that the reinforcing bar connects percentage control in standardizing the allowed band, can improve reinforcing bar efficiency of construction simultaneously, and concrete placement adopts waist rail regularization template, and this template can prevent to leak thick liquid, can improve the template simultaneously and prop up and establish the efficiency of construction, and repeatedly usable, and economic benefits is better.
Description
Technical Field
The utility model relates to a deep foundation pit composite supporting structure which is mainly suitable for foundation pit supporting construction.
Background
The development and comprehensive utilization of underground space are the subject of city construction in this century, and with the transformation of old cities and the rapid development of modern municipal facilities and construction industries and the rise of high-rise buildings, the research of new theories and new technologies of design and construction of underground engineering such as building foundation pit engineering, subway tunnel engineering and the like becomes a hotspot and a difficult point of the current engineering world.
As the soil nails and the steel pipe piles have the advantages of quick, simple and convenient construction, economy, reliability and the like, the soil nails and the steel pipe piles are widely applied to underground engineering. However, the popularization of the technology is limited by the limitation of the application of the soil nails, and through the research and development of new technologies, the composite supporting technology of the soil nails and the steel pipe piles is gradually applied to foundation pit supporting engineering in China, and a good economic effect is achieved.
In view of this, aiming at a series of problems of insufficient bearing capacity, poor supporting effect and the like existing in the current soil-nail composite supporting construction, the utility model of a simple and effective deep foundation pit composite supporting structure is urgently needed to improve the bearing capacity and the construction efficiency of a foundation pit supporting system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a deep foundation pit composite supporting structure.
The deep foundation pit composite supporting structure comprises a miniature steel pipe pile, a prestressed anchor cable, soil nails and a waist beam; the whole shaping steel reinforcement cage of crown beam at miniature steel-pipe pile top passes through the ligature bed-jig of the whole shaping steel reinforcement of crown beam, crisscrossly sets up soil nail and prestressed anchorage cable in the soil layer, and the prestressed anchorage cable outside sets up the waist rail, and the whole shaping reinforcing bar of waist rail passes through the ligature bed-jig of the whole shaping steel reinforcement of waist rail ligature, and waist rail concrete placement adopts the template of sizing of waist rail.
Preferably, the method comprises the following steps: the miniature steel pipe piles are arranged below the crown beams, stiffening steel pipes and the integral forming reinforcement cages of the crown beams are arranged in the crown beams, net-sprayed concrete is arranged on the outer sides of the miniature steel pipe piles, pre-buried base plates are arranged in the net-sprayed concrete, waist beam template fixing rods are arranged at the tops of the pre-buried base plates, waist beam template bottom fixing screws are arranged at the bottoms of the pre-buried base plates, a plurality of steel pipe pile convex joints are arranged at the bottoms of each section of miniature steel pipe piles, steel pipe pile concave joints with corresponding quantity are arranged at the tops of lengthened sections of steel pipe piles, and the miniature steel pipe piles are fastened, rotated and fixed through the concave-convex joints during splicing and are welded on the outer sides; and a prefabricated assembly type drainage ditch is arranged at the top of the soil layer.
Preferably, the method comprises the following steps: soil nails and prestressed anchor cables are arranged in the soil layer in a staggered mode, cement mortar is arranged on the outer side of the prestressed anchor cables, waist beams are arranged on the sides, close to the net spraying concrete, of the prestressed anchor cables, integrally formed reinforcing steel bars of the waist beams are arranged in the waist beams, waist beam forming templates are arranged on the outer sides of the waist beams, the tops of the waist beam forming templates are fixed on the waist beam template fixing rods, and the bottoms of the waist beam forming templates are fixed on the embedded base plates through waist beam template bottom fixing screws.
Preferably, the method comprises the following steps: the crown beam integral forming reinforcement jig frame is mainly composed of a main reinforcement placing groove, a crown beam integral forming reinforcement jig frame front end, a crown beam integral forming reinforcement jig frame middle end and a crown beam integral forming reinforcement jig frame rear end, the crown beam integral forming reinforcement jig frame front end, the crown beam integral forming reinforcement jig frame middle end and the crown beam integral forming reinforcement jig frame rear end are all provided with a main reinforcement placing groove, the crown beam integral forming reinforcement jig frame rear end is provided with a stirrup placing plate, the stirrup placing plate is provided with a stirrup placing groove, the stirrup placing groove is arranged in the stirrup placing groove on the crown beam integral forming reinforcement jig frame rear end, stirrups are arranged on the magnetic sheets, a stirrup placing plate is arranged between the crown beam integral forming reinforcement jig frame front end and the crown beam integral forming reinforcement jig frame middle end, and the stirrup placing groove is arranged on the stirrup placing plate.
Preferably, the method comprises the following steps: the reinforcement jig frame integrally formed by the waist beam mainly comprises the front end of the reinforcement jig frame integrally formed by the waist beam, the middle end of the reinforcement jig frame integrally formed by the waist beam and the rear end of the reinforcement jig frame integrally formed by the waist beam, a stirrup placing plate is arranged between the front end of the reinforcement jig frame integrally formed by the waist beam and the middle end of the reinforcement jig frame integrally formed by the waist beam, stirrup placing grooves are arranged on the stirrup placing plate, upper main reinforcements are placed in the main reinforcements placing grooves at the upper parts of the front end of the reinforcement jig frame integrally formed by the waist beam, the middle end of the reinforcement jig frame integrally formed by the waist beam and the rear end of the reinforcement jig frame integrally formed by the waist beam, lower main reinforcements are placed in the main reinforcements placing grooves at the front end of the reinforcement jig frame integrally formed by the waist beam and the middle end of the reinforcement jig frame integrally formed by the waist beam, the back end of the waist rail integral forming steel bar binding jig frame is provided with a stirrup placing plate, a stirrup placing groove on the stirrup placing plate is internally provided with a magnetic sheet, and the magnetic sheet is provided with a stirrup.
The utility model has the beneficial effects that:
1. the drainage ditch adopts the assembled, improves the efficiency of construction by a wide margin.
2. Waist rail reinforcement adopts the whole shaping reinforcement bed-jig of waist rail, and the structural style of bed-jig can guarantee that the reinforcing bar connects percentage control in standardizing the allowed range, can improve reinforcing bar efficiency of construction simultaneously, and concrete placement adopts waist rail regularization template, and this template can prevent to leak thick liquid, can improve the template simultaneously and prop up and establish the efficiency of construction, and repeatedly usable, and economic benefits is better.
3. Crown beam reinforcement adopts the integral molding reinforcement bed-jig of crown beam, and the structural style of bed-jig can guarantee that the reinforcing bar connects percentage control in standardizing the allowed range, can improve reinforcing bar efficiency of construction simultaneously, adds in the crown beam and establishes stiffening steel pipe, improves crown beam bearing capacity.
4. The miniature steel pipe pile splicing adopts a self-locking type post-welding construction form, an expanded joint cannot be formed, the steel pipe pile is favorable for entering soil, and meanwhile, the splicing construction efficiency can be greatly improved.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a schematic view of the setting up of the sizing template of the wale;
FIG. 3 is a schematic diagram of the splicing of a miniature steel pipe pile;
FIG. 4 is a schematic view of a reinforcement jig for integrally molding a wale;
fig. 5 is a schematic view of a reinforcing steel bar binding jig for integrally molding a crown beam.
Description of reference numerals: 1. the concrete structure comprises a soil layer 2, a miniature steel pipe pile 3, a prestressed anchor cable 4, a soil nail 5, net sprayed concrete 6, a waist beam template fixing rod 7, an embedded backing plate 8, waist beam integrally-formed reinforcing steel bars 9, a waist beam shaping template 10, waist beam template bottom fixing bolts 11, a waist beam 12, a crown beam 13, a crown beam integrally-formed reinforcing cage 14, a reinforcing steel pipe 15, a prefabricated assembly type drainage ditch 16, a steel pipe pile convex joint 17, a steel pipe pile concave joint 18, a waist beam integrally-formed reinforcing steel bar binding jig front end 19, an upper main reinforcement 20, a lower main reinforcement 21, a waist beam integrally-formed reinforcing steel bar binding jig middle end 22, a stirrup 23, a stirrup holding plate 24, a stirrup 25, a waist beam integrally-formed reinforcing steel bar binding jig rear end 26, a main reinforcement holding groove 27, a crown beam integrally-formed binding jig front end 28, a crown beam integrally-formed reinforcing steel bar binding jig middle end 29, a crown beam integrally-formed reinforcing steel bar binding jig rear end 30, a cement mortar holding groove 31.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the utility model. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
As shown in fig. 1-2, the deep foundation pit composite supporting structure mainly comprises a micro steel pipe pile 2, a prestressed anchor cable 3, a soil nail 4, a waist beam 11, a stiffening steel pipe 14, a prefabricated drainage ditch 15, a reinforcement binding jig frame and the like, wherein a soil nail-prestressed anchor cable-micro steel pipe pile composite supporting form is arranged in a foundation pit, a crown beam integral forming reinforcement cage 13 at the top of the micro steel pipe pile 2 is bound by adopting a crown beam integral forming reinforcement binding jig frame, the soil nail 4 and the prestressed anchor cable 3 are arranged in a soil layer 1 in a staggered manner, the waist beam 11 is arranged on the outer side of the prestressed anchor cable 3, a waist beam integral forming reinforcement 8 is bound by adopting a waist beam integral forming reinforcement binding jig frame, and waist beam concrete pouring adopts a waist beam stereotyped template 9. Miniature steel-pipe pile 2 is arranged in and is covered 12 belows, sets up stiffening steel pipe 14 and the integral forming steel reinforcement cage 13 of canopy roof beam in 12, and miniature steel-pipe pile 2 outside sets up net and spouts concrete 5, sets up pre-buried backing plate 7 in the net spouts concrete 5, and pre-buried backing plate 7 top sets up waist rail template dead lever 6, and pre-buried backing plate 7 bottom sets up waist rail template fixed screw 10. And a prefabricated assembly type drainage ditch 15 is arranged at the top of the soil layer 1.
As shown in fig. 3, three steel pipe pile male connectors 16 are arranged at the bottom of each section of the miniature steel pipe pile, three steel pipe pile female connectors 17 are arranged at the top of the lengthened steel pipe pile, and the miniature steel pipe piles are fastened, rotated and fixed through the male connectors during splicing and are welded on the outer sides.
As shown in figure 4, the waist rail integral forming reinforcing steel bar 8 is bound by a waist rail integral forming reinforcing steel bar binding jig frame, the waist rail integral forming reinforcing steel bar binding jig frame mainly comprises a waist rail integral forming reinforcing steel bar binding jig frame front end 18, a waist rail integral forming reinforcing steel bar binding jig frame middle end 21 and a waist rail integral forming reinforcing steel bar binding jig frame rear end 25, a stirrup placing plate 23 is arranged between the waist rail integral forming reinforcing steel bar binding jig frame front end 18 and the waist rail integral forming reinforcing steel bar binding jig frame middle end 21, a stirrup placing groove 31 is arranged on the stirrup placing plate 23, a main bar placing groove 26 is arranged on the waist rail integral forming reinforcing steel bar binding jig frame front end 18, the waist rail integral forming reinforcing steel bar binding jig frame middle end 21 and the waist rail integral forming reinforcing steel bar binding jig frame rear end 25, a main bar 19 is arranged in the main bar placing groove 26 on the waist rail integral forming reinforcing steel bar binding jig frame front end 18 and the waist rail integral forming reinforcing steel bar binding jig frame rear end 25, the lower main reinforcement 20 is placed in the main reinforcement placing groove 26 of the lower part of the middle end 21 of the waist beam integrally-formed steel bar binding jig front end 18 and the waist beam integrally-formed steel bar binding jig, the stirrup placing plate 23 is arranged at the rear end 25 of the waist beam integrally-formed steel bar binding jig, the magnetic sheet 22 is arranged in the stirrup placing groove 31 on the stirrup placing plate 23, and the stirrup 24 is arranged on the magnetic sheet 22.
As shown in figure 5, a crown beam integral forming reinforcement cage 13 is bound by a crown beam integral forming reinforcement jig, the crown beam integral forming reinforcement jig comprises a main reinforcement placing groove 26, a crown beam integral forming reinforcement jig front end 27, a crown beam integral forming reinforcement jig middle end 28, a crown beam integral forming reinforcement jig rear end 29 and the like, the crown beam integral forming reinforcement jig front end 27, the crown beam integral forming reinforcement jig middle end 28, the crown beam integral forming reinforcement jig rear end 29 are provided with the main reinforcement placing groove 26, the crown beam integral forming reinforcement jig rear end 29 is provided with a stirrup placing plate 23, the stirrup placing plate 23 is provided with a stirrup placing groove 31, a magnetic sheet 22 is arranged in the stirrup placing groove 31 on the crown beam integral forming reinforcement jig rear end 29, the magnetic sheet 22 is provided with a stirrup 24, the crown beam integral forming reinforcement jig front end 27, the crown beam integral forming reinforcement jig middle end 28 are provided with the stirrup placing groove 23, the stirrup-placing plate 23 is provided with a stirrup-placing groove 31.
Claims (5)
1. The utility model provides a deep basal pit combined type supporting construction which characterized in that: comprises a micro steel pipe pile (2), a prestressed anchor cable (3), soil nails (4) and a wale (11); the top beam integral forming reinforcement cage (13) at the top of the miniature steel pipe pile (2) is bound through a top beam integral forming reinforcement jig frame, soil nails (4) and prestressed anchor cables (3) are arranged in a soil layer (1) in a staggered mode, waist beams (11) are arranged on the outer sides of the prestressed anchor cables (3), waist beam integral forming reinforcements (8) are bound through a waist beam integral forming reinforcement jig frame, and waist beam concrete pouring adopts a waist beam sizing template (9).
2. The deep foundation pit composite supporting structure of claim 1, wherein: the miniature steel pipe piles (2) are arranged below the crown beam (12), stiffening steel pipes (14) and a crown beam integral forming reinforcement cage (13) are arranged in the crown beam (12), net-sprayed concrete (5) is arranged on the outer side of the miniature steel pipe piles (2), pre-buried base plates (7) are arranged in the net-sprayed concrete (5), waist beam template fixing rods (6) are arranged at the tops of the pre-buried base plates (7), waist beam template bottom fixing screws (10) are arranged at the bottoms of the pre-buried base plates (7), a plurality of steel pipe pile convex joints (16) are arranged at the bottom of each section of miniature steel pipe pile (2), steel pipe pile concave joints (17) with corresponding number are arranged at the tops of lengthened sections of steel pipe piles, and the miniature steel pipe piles are fastened, rotated and fixed through the concave joints and welded at the outer sides when being spliced; and a prefabricated assembly type drainage ditch (15) is arranged at the top of the soil layer (1).
3. The deep foundation pit composite supporting structure of claim 2, wherein: soil nails (4) and prestressed anchor cables (3) are arranged in the soil layer (1) in a staggered mode, cement mortar (30) is arranged on the outer side of each prestressed anchor cable (3), each prestressed anchor cable (3) is close to a net sprayed concrete (5) side and is provided with a waist beam (11), waist beam integral forming reinforcing steel bars (8) are arranged in each waist beam (11), a waist beam shaping template (9) is arranged on the outer side of each waist beam, the top of each waist beam shaping template (9) is fixed on each waist beam template fixing rod (6), and the bottom of each waist beam shaping template (9) is fixed on a pre-buried base plate (7) through a waist beam template bottom fixing screw rod (10).
4. The deep foundation pit composite supporting structure of claim 1, wherein: the crown beam integral forming reinforcement jig frame mainly comprises a main reinforcement placing groove (26), a crown beam integral forming reinforcement jig frame front end (27), a crown beam integral forming reinforcement jig frame middle end (28) and a crown beam integral forming reinforcement jig frame rear end (29), the crown beam integral forming reinforcement jig frame front end (27), the crown beam integral forming reinforcement jig frame middle end (28) and the crown beam integral forming reinforcement jig frame rear end (29) are respectively provided with a main reinforcement placing groove (26), the crown beam integral forming reinforcement jig frame rear end (29) is provided with a stirrup placing plate (23), the stirrup placing groove (31) is arranged on the stirrup placing plate (23), a magnetic sheet (22) is arranged in the stirrup placing groove (31) on the crown beam integral forming reinforcement jig frame rear end (29), a stirrup (24) is arranged on the magnetic sheet (22), the crown beam integral forming reinforcement jig frame front end (27) and the crown beam integral forming reinforcement jig frame middle end (28) are arranged between the stirrup placing grooves (23), the stirrup placing plate (23) is provided with a stirrup placing groove (31).
5. The deep foundation pit composite supporting structure of claim 1, wherein: the waist rail integrally-formed reinforcement jig frame mainly comprises a waist rail integrally-formed reinforcement jig frame front end (18), a waist rail integrally-formed reinforcement jig frame middle end (21) and a waist rail integrally-formed reinforcement jig frame rear end (25), a stirrup placing plate (23) is arranged between the waist rail integrally-formed reinforcement jig frame front end (18) and the waist rail integrally-formed reinforcement jig frame middle end (21), a stirrup placing groove (31) is arranged on the stirrup placing plate (23), a main reinforcement placing groove (26) is arranged on the waist rail integrally-formed reinforcement jig frame front end (18), the waist rail integrally-formed reinforcement jig frame middle end (21) and the waist rail integrally-formed reinforcement jig frame rear end (25), an upper main reinforcement (19) is placed in the main reinforcement placing groove (26) on the upper portion of the waist rail integrally-formed reinforcement jig frame front end (18) and the waist rail integrally-formed reinforcement jig frame rear end (25), the lower main reinforcement (20) is placed in the main reinforcement placing groove (26) at the lower parts of the front end (18) of the waist beam integrally-formed reinforcement jig and the middle end (21) of the waist beam integrally-formed reinforcement jig, the stirrup placing plate (23) is arranged at the rear end (25) of the waist beam integrally-formed reinforcement jig, the magnetic sheet (22) is arranged in the stirrup placing groove (31) on the stirrup placing plate (23), and the stirrup (24) is arranged on the magnetic sheet (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220053637.7U CN216787148U (en) | 2022-01-10 | 2022-01-10 | Deep foundation pit composite type supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220053637.7U CN216787148U (en) | 2022-01-10 | 2022-01-10 | Deep foundation pit composite type supporting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216787148U true CN216787148U (en) | 2022-06-21 |
Family
ID=82013617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220053637.7U Active CN216787148U (en) | 2022-01-10 | 2022-01-10 | Deep foundation pit composite type supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216787148U (en) |
-
2022
- 2022-01-10 CN CN202220053637.7U patent/CN216787148U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103046463B (en) | Assembly type saddle-shell-shaped bottom plate continuous box girder bridge and construction method thereof | |
| CN106759900A (en) | Assembled architecture agent structure | |
| CN109577539A (en) | Build inclined roof fabricated construction technique | |
| CN110792164B (en) | Transverse assembling device and method for assembled shear wall | |
| CN105220808A (en) | Large-span prestressed arch bar site prefabrication construction method of installation | |
| CN111424850A (en) | Prefabricated reinforced concrete shear wall and construction method | |
| CN113638304A (en) | Concrete beam type bridge hidden cover beam structure system and construction method thereof | |
| CN110644662A (en) | Prefabricated flat slab composite slab based on stress and splitting method thereof | |
| CN206769200U (en) | First wear formula post stretching vertical prestressing cast-in-place concrete rod structure | |
| CN113502835A (en) | Wet cellular assembled gridwork roof beam slope protection structure of connecting | |
| CN204940652U (en) | Large-span prestressed site prefabrication arch bar | |
| CN216787148U (en) | Deep foundation pit composite type supporting structure | |
| CN204781443U (en) | Device for connecting precast shear wall concatenation about being used for | |
| CN107100322A (en) | Post stretching vertical prestressing cast-in-place concrete rod structure and construction method | |
| CN219219334U (en) | Prefabricated assembled ultra-high performance concrete T type roof beam | |
| WO2014079741A1 (en) | System and method for self carrying homogenous biaxial concrete slab | |
| CN216338993U (en) | Longitudinal joint for steel-UHPC (ultra high performance concrete) assembled pi-shaped combination beam | |
| CN107142830B (en) | Steel pipe web prestress steel-concrete combined girder structure and construction method | |
| CN206769199U (en) | After wear formula post stretching vertical prestressing cast-in-place concrete rod structure | |
| CN216892975U (en) | Prefabricated assembled coincide steel pipe concrete shear force wall | |
| CN102392417A (en) | Dual-cantilever bearing support structure for large steel pipe and installation method | |
| CN215802633U (en) | Laminated shear wall with steel constraint component | |
| CN105040855A (en) | Assembled prefabricated shear wall welding end plate and horizontal steel combination connecting device | |
| CN214741845U (en) | Precast concrete pipe sheet connecting structure for steel-concrete tower cylinder | |
| CN112695800B (en) | Assembled integral type underground structural steel-concrete combined connecting structure and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |