CN203939021U - A kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure - Google Patents
A kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure Download PDFInfo
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- CN203939021U CN203939021U CN201420403519.XU CN201420403519U CN203939021U CN 203939021 U CN203939021 U CN 203939021U CN 201420403519 U CN201420403519 U CN 201420403519U CN 203939021 U CN203939021 U CN 203939021U
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Abstract
The utility model provides a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure.Described constructing structure comprises static pressure steel pipe pile, envelope stake hole and piling hole, static pressure steel pipe pile is pressed into by piling hole in the soil layer of Subway Tunnel bottom half, be provided with piling cover plate at pile crown top, it is characterized in that: be provided with annular sealing steel ring in the upper port in piling hole, described annular sealing steel ring is fixed on encapsulated holes sole plane by expansion bolt, full weld one lap welding seam between annular sealing steel ring and static pressure steel pipe pile pile crown; Be equipped with reinforced mesh at piling cover plate end face, the card of described reinforced mesh is located on the hole wall in envelope stake hole, be provided with a circle or multi-ring annular water-swellable sealing rod in encapsulated holes aperture to the hole wall between reinforced mesh, and form encapsulated layer in encapsulated holes by concreting.The utility model construction technology is simple, and convenient operation has good Subway Tunnel casing tunnel dynamic load supporting capacity, and has excellent anchor rod static pressure pile head waterproof stagnant water effect.
Description
Technical field
The utility model relates to the interval static pressure steel pipe pile of subway casing pile crown construction problem.Particularly after the interval casing constuction joint of city underground generation differential settlement, for preventing that Subway Tunnel casing from the rockbolt static pressure steel pipe pile pile crown constructing structure that differential settlement uses occurring again.
Background technology
Certain interval, subway A line subway station～subway station, planning high ferro business district, position place.Interval is made up of underground two intervals and B1 section.Underground two-layer segment length 136m, for two-layer four across structure; The long 232m of B1 end is single hole rectangular configuration.The interval substrate of B1 is positioned at (5) 2 layers of powder soil horizon, and underground two layers of interval are positioned at (6) 1 layers of argillic horizon.In view of form of structure and substrate bottom difference are obviously and for avoiding the later stage to occur a large amount of structural crackss, when Design of Main Structure, be provided with deformation joint at B1 and underground two layers of interval structure interface.After having constructed, because differential settlement distortion between an interval interval and two intervals is larger, there is larger percolating water in deformation joint position.For rationally solving Subway Tunnel casing generation uneven subsidence, adopt a kind of novel rear way rockbolt static pressure steel pipe pile and base grouting reinforcement technique, and water-enriched layer static pressure steel pipe pile pile crown construction technology is the key technology that deformation joint seepage water problems will be captured.
Summary of the invention
The utility model is according to the deficiency of existing static pressure steel pipe pile pile crown construction technology, a kind of improved static pressure steel pipe pile pile crown constructing structure is provided, static pressure steel pipe pile pile crown structure construction technique after improvement is simple, easy to operate, and has good supporting capacity and waterproof effect.
The technical scheme that the utility model provides: described a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure, comprise static pressure steel pipe pile and the envelope stake hole that is opened in Subway Tunnel box bottom, piling hole, described piling hole is to adopt core cutter method to offer at the bottom basal plane in envelope stake hole to form, and piling hole penetrates the backfill bed of material of Subway Tunnel box bottom to Subway Tunnel bottom half, the lower end of static pressure steel pipe pile is through envelope stake hole, and be pressed into by piling hole in the soil layer of Subway Tunnel bottom half, its pile crown is placed in the upper port in piling hole, be provided with piling cover plate at pile crown top, it is characterized in that: be provided with annular sealing steel ring in the upper port in piling hole, described annular sealing steel ring is fixed on encapsulated holes sole plane by expansion bolt, full weld one lap welding seam between annular sealing steel ring and static pressure steel pipe pile pile crown, and by weld seam, annular sealing steel ring and pile crown are fixed, be equipped with reinforced mesh at piling cover plate end face, the card of described reinforced mesh is located on the hole wall in envelope stake hole, be provided with a circle or multi-ring annular water-swellable sealing rod in encapsulated holes aperture to the hole wall between reinforced mesh, and form encapsulated layer in encapsulated holes by concreting.
The utility model is technical scheme preferably: described encapsulated holes is trapezoidal pyramid shape.
The utility model is technical scheme preferably: the diameter of described static pressure steel pipe pile is 159mm, and the suitable for reading of described encapsulated holes is 400*400mm, and end opening is 500*500mm, and the degree of depth is 400mm, and the diameter in described piling hole is 180mm.
The utility model is technical scheme preferably: on the sidewall of envelope stake hole, 1/2He1/3 position, aperture, distance packaged hole is pasted respectively a ring shape water-swellable sealing rod is set.
The utility model is technical scheme preferably: described reinforced mesh adopts two-way C20@100 reinforced mesh, and specifically the grade III steel of diameter 20mm is laid according to spacing 100mm.
The utility model is technical scheme preferably: described annular sealing steel ring is fixed on encapsulated holes sole plane by eight expansion bolts, and expansion bolt adopts M16 stainless steel expansion bolt.
The utility model is technical scheme preferably: be coated with and be brushed with epoxy adhesive in the envelope stake corresponding annular sealing steel ring of hole sole plane upper surface installation site.
The utility model is technical scheme preferably: the height of described weld seam is 12mm.
The utility model is technical scheme preferably: the interior diameter of described annular sealing steel ring is 159mm, external diameter 359mm, and thickness is 20mm.
The utility model construction technology is simple, convenient operation, has good Subway Tunnel casing tunnel dynamic load supporting capacity, and has excellent anchor rod static pressure pile head waterproof stagnant water effect, be convenient to water-enriched layer anchor jacked pile quality control on construction, improve the economic benefit of underground construction.
Brief description of the drawings
Fig. 1 trapezoidal pyramid shape envelope stake hole plan view and generalized section
Fig. 2 steel pipe pile pile crown construction sectional drawing
Fig. 3 steel pipe pile pile crown construction plan
In figure: 1-envelope stake hole, 2-envelope stake hole sidewall concrete chisel removal face, 3-envelope stake hole sole plane, 4-piling hole, 5-static pressure steel pipe pile, 5-1-pile crown, 6-annular sealing steel ring, 7-expansion bolt, 8-piling cover plate, 9-weld seam, 10-reinforced mesh, 11-water-swellable sealing rod, 12-Subway Tunnel box bottom, placing of reinforcement on 13-Subway Tunnel box bottom, placing of reinforcement under 14-Subway Tunnel box bottom.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme in the utility model is clearly and completely described.In Fig. 1,2, described a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure, comprise static pressure steel pipe pile 5 and the trapezoidal pyramid shape envelope stake hole 1, the piling hole 4 that are opened in Subway Tunnel box bottom 12, trapezoidal pyramid shape envelope stake hole 1 has effectively ensured that the part component that DYNAMIC LOADING OF DRIVING TRAIN ON BRIDGES is delivered on floor, box interval is effectively delivered on static pressure steel pipe pile 5, described piling hole 4 is to adopt core cutter method to offer at the bottom basal plane in envelope stake hole 1 to form, and piling hole 4 penetrates the backfill bed of material of Subway Tunnel box bottom 12 to Subway Tunnel bottom half, the lower end of static pressure steel pipe pile 5 is through envelope stake hole 1, and be pressed into by piling hole 4 in the soil layer of Subway Tunnel bottom half, its pile crown 5-1 is placed in the upper port in piling hole 4, the height generally exposing can not exceed 25 slowly, a little more than sealing steel ring, be provided with piling cover plate 8 at pile crown 5-1 top, it is characterized in that: be provided with annular sealing steel ring 6 in the upper port in piling hole 4, described annular sealing steel ring 6 is fixed on encapsulated holes sole plane 3 by expansion bolt 7, full weld one lap welding seam 9 between annular sealing steel ring 6 and static pressure steel pipe pile pile crown 5-1, and by weld seam 9, annular sealing steel ring 6 is fixing with pile crown 5, first static pressure steel pipe pile 5 pile crown percolating water passages are effectively stoped, be equipped with reinforced mesh 10 at piling cover plate 8 end faces, the card of described reinforced mesh 10 is located on the hole wall in envelope stake hole 1, be provided with a circle or multi-ring annular water-swellable sealing rod 11 in encapsulated holes 1 aperture to the hole wall between reinforced mesh 10, stoped water-enriched layer static pressure steel pipe pile 5 pile crowns may occur the underground passage of percolating water, and form encapsulated layer in encapsulated holes 1 by building C40 expansive concrete.
Below in conjunction with specific embodiment, the utility model is further illustrated.As shown in Figure 1 and Figure 2,
Described water-enriched layer rockbolt static pressure steel pipe pile pile crown construction technology is that cutter is established the 400*400mm of being suitable for reading on the thick casing concrete floor of Subway Tunnel 700mm, end opening is 500*500mm, the degree of depth is the trapezoidal pyramid shape envelope stake hole 1 of 400mm, on envelope stake hole sole plane 3, adopt core cutter method to get A180mm piling hole 4, piling hole 4 penetrates Subway Tunnel box bottom 12 and remains the thick base plate of 300mm and 200mm bed course to the Subway Tunnel bottom half backfill bed of material, polishing cleaning envelope stake hole sole plane 3 after 5 pilings of Φ 159mm static pressure steel pipe pile complete, on encapsulated holes sole plane 3, be drilled with the installing hole of 8 M16 stainless steel expansion bolts 7 and clean out according to annular sealing steel ring 6 bolt hole positions, brushing epoxy adhesive on envelope stake hole sole plane 3 corresponding to annular sealing steel ring 6 installation sites, as shown in Figure 3, annular water-stopping steel circle 6 is installed, and fixing with M16 stainless steel expansion bolt 7, between annular sealing steel ring 6 and steel pipe pile 5 pile crowns, full weld one circle is highly that the weld seam 9 of 12mm is fixed, steel pipe pile employing piling suitable for reading cover plate 8 is fixed with the weld seam 9 that sealing steel ring full weld one circle is highly 12mm, annular sealing steel ring 6 interior diameter 159mm, external diameter 359mm, thickness is 20mm.On piling cover plate 8 end faces, lay two-way C20 100 reinforced mesh 10, on distance packaged hole mouth 1/2 and 1/3 Feng Zhuan hole, position sidewall concrete chisel removal face 2, paste after a ring shape water-swellable sealing rod 11 respectively, adopt C40 expansive concrete to build encapsulated holes.
Claims (9)
1. a water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure, comprise static pressure steel pipe pile (5) and be opened in the envelope stake hole (1) of Subway Tunnel box bottom (12), piling hole (4), described piling hole (4) is to adopt core cutter method to offer at the bottom in envelope stake hole (1) basal plane to form, and piling hole (4) penetrate the backfill bed of material of Subway Tunnel box bottom (12) to Subway Tunnel bottom half, the lower end of static pressure steel pipe pile (5) is through envelope stake hole (1), and be pressed in the soil layer of Subway Tunnel bottom half by piling hole (4), its pile crown (5-1) is placed in the upper port of piling hole (4), be provided with piling cover plate (8) at pile crown (5-1) top, it is characterized in that: be provided with annular sealing steel ring (6) in the upper port of piling hole (4), described annular sealing steel ring (6) is fixed on encapsulated holes sole plane (3) by expansion bolt (7), full weld one lap welding seam (9) between annular sealing steel ring (6) and static pressure steel pipe pile pile crown (5-1), and by weld seam (9), annular sealing steel ring (6) and pile crown (5) are fixed, be equipped with reinforced mesh (10) at piling cover plate (8) end face, the card of described reinforced mesh (10) is located on the hole wall in envelope stake hole (1), be provided with a circle or multi-ring annular water-swellable sealing rod (11) in encapsulated holes (1) aperture to the hole wall between reinforced mesh (10), and form encapsulated layer in encapsulated holes (1) by concreting.
2. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1, is characterized in that: the trapezoidal pyramid shape in described piling hole (1).
3. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, it is characterized in that: the diameter of described static pressure steel pipe pile (5) is 159mm, the suitable for reading of encapsulated holes (1) is 400*400mm, end opening is 500*500mm, the degree of depth is 400mm's, and the diameter in described piling hole (4) is 180mm.
4. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, is characterized in that: on the sidewall of envelope stake hole, 1/2He1/3 position, aperture, distance packaged hole (1) is pasted respectively a ring shape water-swellable sealing rod (11) is set.
5. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, is characterized in that: described reinforced mesh (10) adopts two-way C20@100 reinforced mesh.
6. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, it is characterized in that: it is upper that described annular sealing steel ring (6) is fixed on encapsulated holes sole plane (3) by eight expansion bolts (7), and expansion bolt (7) adopts M16 stainless steel expansion bolt.
7. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, is characterized in that: be coated with and be brushed with epoxy adhesive in the envelope stake corresponding annular sealing steel ring (6) of hole sole plane (3) upper surface installation site.
8. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, is characterized in that: the height of described weld seam (9) is 12-16mm.
9. a kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure according to claim 1 and 2, is characterized in that: the interior diameter of described annular sealing steel ring (6) is 159mm, external diameter 359mm, and thickness is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403519.XU CN203939021U (en) | 2014-07-21 | 2014-07-21 | A kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure |
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| CN201420403519.XU CN203939021U (en) | 2014-07-21 | 2014-07-21 | A kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure |
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| CN203939021U true CN203939021U (en) | 2014-11-12 |
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| CN201420403519.XU Expired - Fee Related CN203939021U (en) | 2014-07-21 | 2014-07-21 | A kind of water-enriched layer rockbolt static pressure steel pipe pile pile crown constructing structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755779A (en) * | 2018-05-04 | 2018-11-06 | 中科院广州化灌工程有限公司 | A kind of piling waterstop construction process of pressure-bearing basement anchor jacked pile |
| CN110206339A (en) * | 2019-06-14 | 2019-09-06 | 北京翔鲲水务建设有限公司 | A kind of push pipe passes through construction method of underground continuous wall |
| CN110761274A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Mud-water balance open caisson static pressure steel pipe uplift pile structure in soft soil area and construction method thereof |
| CN110924997A (en) * | 2019-12-09 | 2020-03-27 | 中铁十六局集团有限公司 | Tunnel secondary lining crack trimming and reinforcing method |
| CN111677025A (en) * | 2020-06-12 | 2020-09-18 | 中铁隧道股份有限公司 | Underground passage repairing method |
| WO2020233145A1 (en) * | 2019-05-23 | 2020-11-26 | 上海长凯岩土工程有限公司 | Construction method using inclined steel pipe combined structure to form force bearing body |
| CN113062168A (en) * | 2021-03-17 | 2021-07-02 | 中国一冶集团有限公司 | Method for improving water permeability of pavement |
-
2014
- 2014-07-21 CN CN201420403519.XU patent/CN203939021U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755779A (en) * | 2018-05-04 | 2018-11-06 | 中科院广州化灌工程有限公司 | A kind of piling waterstop construction process of pressure-bearing basement anchor jacked pile |
| WO2020233145A1 (en) * | 2019-05-23 | 2020-11-26 | 上海长凯岩土工程有限公司 | Construction method using inclined steel pipe combined structure to form force bearing body |
| CN110206339A (en) * | 2019-06-14 | 2019-09-06 | 北京翔鲲水务建设有限公司 | A kind of push pipe passes through construction method of underground continuous wall |
| CN110761274A (en) * | 2019-10-25 | 2020-02-07 | 中铁第四勘察设计院集团有限公司 | Mud-water balance open caisson static pressure steel pipe uplift pile structure in soft soil area and construction method thereof |
| CN110924997A (en) * | 2019-12-09 | 2020-03-27 | 中铁十六局集团有限公司 | Tunnel secondary lining crack trimming and reinforcing method |
| CN111677025A (en) * | 2020-06-12 | 2020-09-18 | 中铁隧道股份有限公司 | Underground passage repairing method |
| CN113062168A (en) * | 2021-03-17 | 2021-07-02 | 中国一冶集团有限公司 | Method for improving water permeability of pavement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 |