CN204982865U - Pile foundation is through processing apparatus in rich water -soluble hole - Google Patents
Pile foundation is through processing apparatus in rich water -soluble hole Download PDFInfo
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- CN204982865U CN204982865U CN201520588562.2U CN201520588562U CN204982865U CN 204982865 U CN204982865 U CN 204982865U CN 201520588562 U CN201520588562 U CN 201520588562U CN 204982865 U CN204982865 U CN 204982865U
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- water
- solution cavity
- pile foundation
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- soluble hole
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Abstract
The utility model discloses a pile foundation is through processing apparatus in rich water -soluble hole, including the charge pump that is used for the solution cavity drainage, the outer steel that extends to the solution cavity top protect a section of thick bamboo, cover locate outer steel protect a section of thick bamboo in and the interior steel that extends to the solution cavity bottom protect a section of thick bamboo and waterproof concrete board and steel sheet, the waterproof concrete inboard is pre -buried to have a connecting bolt, the steel sheet pass through connecting bolt connect fixed, the waterproof concrete board be located that the steel protects tin and the steel sheet between, the equipartition is gone back in the outside protected tin near interior steel has many slip casting pipes, all backfills the filler in the top in rich water -soluble hole and the rich water -soluble hole. The utility model discloses a drainage and waterproof combining together, charge pump, waterproof concrete and steel sheet integrated configuration, inside and outside steel protect a combined action, intercoordination, the solution cavity processing of adaptation pile foundation under this type of geological conditions that can be fine needs, and be safe practical, and economic nature is good, can be widely used as pile foundation solution cavity processing apparatus under the geological conditions of the same kind.
Description
Technical field
The utility model pile foundation construction field, is specially a kind of pile foundation karst cave treatment device be applied in weak rocks soil layer.
Background technology
In pile foundation construction process, run into sometimes needs pass through rich water-soluble hole (solution cavity refer to highly more than 10m and the single solution cavity of rich water) rough sledding, when solution cavity is higher and cavity is full of water, process for karst foundation has very large difficulty and complexity, especially, when stratum residing for karst is weak rocks soil layer, more great difficulty can be caused to pile foundation construction.Under this geological conditions, if the measure that single employing open cut backfills after draining the water in solution cavity, because the permeability of weak rocks soil layer is very strong, if solution cavity is connected with underground river, water still can flow near pile foundation along with the time be collected after draining, and this will the safety of grave danger pile foundation.If single employing steel pile casting is gone along with sb. to guard him be aided with the measure that solution cavity is filled in slip casting, owing to not getting rid of the water in solution cavity in time, the safety of pile foundation also can be had a strong impact on.Therefore for being in pile foundation under such geological condition, need a kind of brand-new treating apparatus to ensure the safety of pile foundation thus to ensure the operation security of superstructure.
Utility model content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, and the high pile foundation of the safety provide a kind of and draining and sealing can be combined, guaranteed the pile foundation in weak rocks soil layer and stable, good economy performance, safety is by the treating apparatus in rich water-soluble hole.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is:
A kind of pile foundation is by the treating apparatus in rich water-soluble hole, comprise pile foundation casing mechanism, solution cavity section proof mechanism of water and the electric pump for solution cavity draining, described pile foundation casing mechanism comprises the outer steel pile casting that extends to solution cavity top and to be sheathed in outer steel pile casting and the interior steel pile casting extended to bottom solution cavity, described solution cavity section proof mechanism of water to be located in solution cavity and to be positioned at outside steel pile casting, comprise water-proof concrete slab and steel plate, connecting bolt is embedded with in described water-proof concrete slab, described steel plate is connected and fixed by connecting bolt, water-proof concrete slab is between interior steel pile casting and steel plate, outside near interior steel pile casting is also evenly equipped with many Grouting Pipe, all filler is backfilled in the top in the water-soluble hole of described richness and the water-soluble hole of richness.
Further improvement as technique scheme:
Preferably, the thickness of described water-proof concrete slab is not less than 0.2m, and steel plate thickness is not less than 30mm.
Preferably, the diameter of described connecting bolt is not less than 8mm.
Preferably, the thickness of described outer steel pile casting is not less than 10mm, and the thickness of interior steel pile casting is 9mm.
Preferably, the internal diameter of described interior steel pile casting 40mm larger than Pile Diameter.
Preferably, described electric pump comprises the submersible motor, submersible pump, water-supply-pipe and the outlet pipe that are connected successively from bottom to top, and described outlet pipe is provided with valve.
Compared with prior art, the utility model has the advantage of:
The utility model pile foundation is by the treating apparatus in rich water-soluble hole, adopt proof mechanism of water and steel pile casting combined retaining structure, insert electric pump machine to drain the underground water solution cavity from solution cavity top ground surface simultaneously, water-proof concrete slab squeezes into steel plate near solution cavity side, water-proof concrete slab can play the effect of water body in isolation solution cavity, steel plate mainly plays a part to strengthen going along with sb. to guard him, and steel pile casting plays pilot hole orientation, prevents aperture from caving in, maintains groundwater table.Many Grouting Pipe are also provided with in the utility model, can closely knit karst cave treatment section, the space inside and outside filling simultaneously between casing and the space between karst cave treatment backfill.The utility model is coordinated mutually by multiple part, draining and sealing combine, and local adopts reinforcement safeguard procedures, well can maintain the safety of the pile foundation of this kind of geological conditions and stablize, effectively reducing the impact of such solution cavity on pile foundation, ensureing bridge construction and operation security, structure is simple, good economy performance, safety is high, can widely use as pile foundation karst cave treatment device under similar geological conditions.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the layout schematic diagram of Grouting Pipe in the utility model.
Fig. 3 is the structural representation of electric pump in the utility model.
Marginal data:
1, electric pump; 2, interior steel pile casting; 3, outer steel pile casting; 4, sand; 5, steel plate; 6, connecting bolt; 7, water-proof concrete slab; 8, clay and cement admixture; 9, bearing stratum; 10, Grouting Pipe; 11, submersible motor; 12, submersible pump; 13, water-supply-pipe; 14, outlet pipe; 15, valve.
Detailed description of the invention
For the ease of understanding the utility model, hereafter will do to describe more comprehensively, meticulously to the utility model in conjunction with Figure of description and preferred embodiment, but protection domain of the present utility model is not limited to following specific embodiment.
As depicted in figs. 1 and 2, a kind of pile foundation of the present utility model is by the treating apparatus embodiment in rich water-soluble hole, be applied to the pile foundation karst cave treatment in weak rocks soil layer, it comprises pile foundation casing mechanism, solution cavity section proof mechanism of water and the electric pump 1 for solution cavity draining, pile foundation casing mechanism comprises the outer steel pile casting 3 be arranged in pile foundation boring and the interior steel pile casting 2 be sheathed in outer steel pile casting 3, outer steel pile casting 3 extends to the fluid-tight sub-clay layer in solution cavity top or rock-soil layer bottom surface from earth's surface, interior steel pile casting 2 extends to the bearing stratum 9 bottom solution cavity from earth's surface, the aperture of interior steel pile casting 2 is wanted accurately, connection is straight.Inside and outside steel pile casting can protect pile foundation boring mouth, prevents aperture from caving in, and play the guiding role, and can fix pile body, maintain the effect of groundwater table, can prevent the sediment in boring procedure from refluxing simultaneously to boring orientation.Solution cavity section proof mechanism of water to be located in solution cavity and to be positioned at outside steel pile casting 2, comprise water-proof concrete slab 7 and steel plate 5, connecting bolt 6 is embedded with in water-proof concrete slab 7, steel plate 5 is connected and fixed by connecting bolt 6, steel plate 5 is positioned at solution cavity side, water-proof concrete slab 7 is between interior steel pile casting 2 and steel plate 5, and water-proof concrete slab 7, for adding the concrete of micro-content organism (water reducing agent), can prevent the water in solution cavity from continuing again to assemble to infiltrate pile foundation after being drained by electric pump; Steel plate mainly plays a part to strengthen going along with sb. to guard him, and with water-proof concrete slab acting in conjunction, ensures the safety of pile foundation, and connecting bolt plays a part to connect concrete and steel plate.Outside near interior steel pile casting 2 is circumferentially also evenly equipped with in many Grouting Pipe 10(the present embodiment and is provided with 4), all backfill filler in the top in rich water-soluble hole and the water-soluble hole of richness.Wherein adopt sand 4 to enrich between inside and outside steel pile casting, in solution cavity, adopt clay and cement admixture 8 to backfill.Cement paste can inject with closely knit karst cave treatment end by Grouting Pipe, the space between the inside and outside steel pile casting of filling simultaneously and the space between karst cave treatment section backfill.Cement paste can stir system in scene, and be pressed to karst cave treatment section outside interior steel pile casting by mud jacking equipment by Grouting Pipe, closely wrap up to make karst cave treatment backfill retaining wall and interior steel pile casting wall, during pressure injection, pressure should control be not more than 0.5Mpa, and until stablize the slip casting carrying out next hole after 2 seconds again, or till adjacent holes grout.
In the present embodiment, the thickness of water-proof concrete slab 7 is not less than 0.2m, grade is not less than P8.The thickness of steel plate is not less than 30mm.The diameter of connecting bolt 6 is not less than 8mm.The thickness of outer steel pile casting 3 is not less than 10mm, and the thickness of interior steel pile casting 2 is 9mm.The internal diameter 40mm larger than Pile Diameter of interior steel pile casting 2.
As shown in Figure 3, in the present embodiment, electric pump 1 comprises the submersible motor 11, submersible pump 12, water-supply-pipe 13 and the outlet pipe 14 that are connected successively from bottom to top, and outlet pipe 14 is provided with valve 15.The model of electric pump 1, flow and lift are all selected according to the actual conditions of solution cavity.
Adopt above-mentioned the utility model process by the method for the pile foundation in rich water-soluble hole:
First the solution cavity area top ground surface in pile foundation side uses rig to carry out holing to solution cavity region, and select the model of electric pump, flow and lift according to the situation of solution cavity reality, electric pump is inserted and holes interior and assemble, dismantle after the water in solution cavity is drained and take out electric pump.
The water-proof concrete slab that cast-in-place thickness is not less than 0.2m in pile foundation boring, grade is not less than P8, pre-buried connecting bolt in water-proof concrete slab, the diameter of connecting bolt is not less than 8mm, the Admixture of waterproof concrete is water reducing agent, is connected when concrete reaches 75% of design strength with pre-processed steel plate by connecting bolt.
Hand excavation buries outer steel pile casting underground after being not less than the circular hole of 1/3 outer steel pile casting length again, and punching, while connect high outer steel pile casting, and be pressed onto or shake to fluid-tight sub-clay layer or rock-soil layer bottom surface, its gradient should be less than 1%.
Backfill bottom open cut rock-soil layer to solution cavity, wherein solution cavity top adopts sand backfill again, and solution cavity region adopts clay and whole bag cement mixing to backfill, order for first to insert clay whole bag cement again, volume ratio employing 1:0.75.After filling solution cavity, internal steel pile casting carries out sinking, pinions interior steel pile casting with wire rope knot that can be undone by a pull, with loop wheel machine, interior steel pile casting is put into outer casing and is sink at the bottom of hole, sink if desired with vibrating hammer.
The utility model adopts draining and waterproof to combine, electric pump, waterproof concrete and armor Plate, inside and outside steel pile casting acting in conjunction, mutual coordination, well can adapt to the karst cave treatment needs of pile foundation under such geological conditions, safe and practical, and good economy performance, can widely use as pile foundation karst cave treatment device under similar geological conditions.
Claims (6)
1. a pile foundation is by the treating apparatus in rich water-soluble hole, it is characterized in that: comprise pile foundation casing mechanism, solution cavity section proof mechanism of water and the electric pump for solution cavity draining, described pile foundation casing mechanism comprises the outer steel pile casting that extends to solution cavity top and to be sheathed in outer steel pile casting and the interior steel pile casting extended to bottom solution cavity, described solution cavity section proof mechanism of water to be located in solution cavity and to be positioned at outside steel pile casting, comprise water-proof concrete slab and steel plate, connecting bolt is embedded with in described water-proof concrete slab, described steel plate is connected and fixed by connecting bolt, water-proof concrete slab is between interior steel pile casting and steel plate, outside near interior steel pile casting is also evenly equipped with many Grouting Pipe, all filler is backfilled in the top in the water-soluble hole of described richness and the water-soluble hole of richness.
2. pile foundation according to claim 1 is by the treating apparatus in rich water-soluble hole, it is characterized in that: the thickness of described water-proof concrete slab is not less than 0.2m, and steel plate thickness is not less than 30mm.
3. pile foundation according to claim 1 is by the treating apparatus in rich water-soluble hole, it is characterized in that: the diameter of described connecting bolt is not less than 8mm.
4. pile foundation according to claim 1 is by the treating apparatus in rich water-soluble hole, and it is characterized in that: the thickness of described outer steel pile casting is not less than 10mm, the thickness of interior steel pile casting is 9mm.
5. pile foundation according to claim 1 is by the treating apparatus in rich water-soluble hole, it is characterized in that: the internal diameter 40mm larger than Pile Diameter of described interior steel pile casting.
6. the pile foundation according to any one of claim 1-5, by the treating apparatus in rich water-soluble hole, is characterized in that: described electric pump comprises the submersible motor, submersible pump, water-supply-pipe and the outlet pipe that are connected successively from bottom to top, and described outlet pipe is provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588562.2U CN204982865U (en) | 2015-08-03 | 2015-08-03 | Pile foundation is through processing apparatus in rich water -soluble hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520588562.2U CN204982865U (en) | 2015-08-03 | 2015-08-03 | Pile foundation is through processing apparatus in rich water -soluble hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204982865U true CN204982865U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520588562.2U Expired - Fee Related CN204982865U (en) | 2015-08-03 | 2015-08-03 | Pile foundation is through processing apparatus in rich water -soluble hole |
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| CN (1) | CN204982865U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837411A (en) * | 2017-02-04 | 2017-06-13 | 长江勘测规划设计研究有限责任公司 | The arrangement and method of a kind of buried shield tunnel filling and injecting slurry |
| CN106948606A (en) * | 2017-03-30 | 2017-07-14 | 中建四局第五建筑工程有限公司 | Cover type artificial digging pile aperture means of defence and its device |
| CN107268603A (en) * | 2017-08-15 | 2017-10-20 | 广东省水利水电第三工程局有限公司 | The karst cave treatment structure and processing method of a kind of diaphram wall |
| CN113356191A (en) * | 2021-06-16 | 2021-09-07 | 中交第三航务工程局有限公司 | Method for pile foundation construction in karst area to follow up construction of long steel casing |
-
2015
- 2015-08-03 CN CN201520588562.2U patent/CN204982865U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837411A (en) * | 2017-02-04 | 2017-06-13 | 长江勘测规划设计研究有限责任公司 | The arrangement and method of a kind of buried shield tunnel filling and injecting slurry |
| CN106837411B (en) * | 2017-02-04 | 2020-04-03 | 长江勘测规划设计研究有限责任公司 | Arrangement structure and method for filling and grouting of deep-buried shield tunnel |
| CN106948606A (en) * | 2017-03-30 | 2017-07-14 | 中建四局第五建筑工程有限公司 | Cover type artificial digging pile aperture means of defence and its device |
| CN107268603A (en) * | 2017-08-15 | 2017-10-20 | 广东省水利水电第三工程局有限公司 | The karst cave treatment structure and processing method of a kind of diaphram wall |
| CN113356191A (en) * | 2021-06-16 | 2021-09-07 | 中交第三航务工程局有限公司 | Method for pile foundation construction in karst area to follow up construction of long steel casing |
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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: 20160120 Termination date: 20160803 |