CN205012325U - Prefabricated precipitation tubular pile in building foundation - Google Patents
Prefabricated precipitation tubular pile in building foundation Download PDFInfo
- Publication number
- CN205012325U CN205012325U CN201520781757.9U CN201520781757U CN205012325U CN 205012325 U CN205012325 U CN 205012325U CN 201520781757 U CN201520781757 U CN 201520781757U CN 205012325 U CN205012325 U CN 205012325U
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- China
- Prior art keywords
- pile tube
- cartridge filter
- precast dewatering
- tube
- precast
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Abstract
The utility model relates to a prefabricated precipitation tubular pile in building foundation and application method, prefabricated precipitation tubular pile is hollow cylindric, including pipe wall and tapered pile point, the upper portion interval arrangement of pipe wall has a plurality of holes of permeating water. Prefabricated precipitation tubular pile is inside to be equipped with the cartridge filter, just the upper end opening of cartridge filter, the lower extreme seals. The outer groundwater of prefabricated precipitation tubular pile gets into after the filtration of cartridge filter get into prefabricated precipitation tubular pile through the hole of permeating water in in the cartridge filter, and the silt in the groundwater intercept in between the internal surface and cartridge filter of pipe wall. The utility model discloses shorten tubular well construction period, will prefabricate the precipitation tubular pile simultaneously and become anti -floating pile, improved the anti buoyancy ability of prefabricated precipitation tubular pile.
Description
Technical field
The utility model relates to the realm of building construction, and what be specifically related to is precast dewatering pile tube in a kind of building foundation pit.
Background technology
In correlation technique, well-point dewatering method is a kind of method of artificial dewatering, because well-point dewatering method is applicable to that groundwater table is higher or amount of precipitation is more, digs that base is comparatively dark, in the construction environment of hole wall instability, is widely used at present in ground works.Before excavation of foundation pit, make precipitation pipe well in the boring of foundation ditch surrounding and bury well-point pipe underground, dewatering construction workload is large, and precipitation complete after well-point pipe throw aside, cause the waste of resource.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide precast dewatering pile tube in building foundation pit, and solve dewatering construction workload large, after foundation pit dewatering completes, well-point pipe is thrown aside, causes the technical problem of the wasting of resources.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is precast dewatering pile tube in building foundation pit, and described precast dewatering pile tube is the cylindrical shape of hollow, comprises tube wall and taper pile top, and the top of described tube wall has been spaced multiple permeable hole.Described precast dewatering pile tube inside is provided with the cartridge filter of hollow cylindrical, and the upper end open of described cartridge filter, lower end closed, underground water outside described precast dewatering pile tube enters in precast dewatering pile tube by permeable hole, enter after the filtration of cartridge filter in described cartridge filter, and the silt in underground water is tackled between the inner surface and cartridge filter of described tube wall.
As preferably, the cross section of described permeable hole is horn-like, and the diameter of cross section reduces along the external surface of tube wall gradually to inner surface direction.
As preferably, the external diameter of described permeable hole is 20mm, and internal diameter is 8mm.
As preferably, described permeable hole is arranged in the region of the downward 40cm ~ 60cm of upper surface of described precast dewatering pile tube.
As preferably, described permeable hole adopts prefabricated mould pore-forming.
As preferably, the inner surface of described taper pile top is provided with fixture, and described cartridge filter is fixed in described precast dewatering pile tube by connecting described fixture.
As preferably, the lower end of described cartridge filter is the taper that size and described taper pile top match, and the lower end of described cartridge filter is embedded in described taper pile top, thus is fixed on by cartridge filter in described precast dewatering pile tube.
The beneficial effects of the utility model: the precast dewatering pile tube on engineering pile basis directly inserts in foundation ditch by the utility model, installing well conductors while forming pipe well, saves the construction sequence of carrying out well casing installation in foundation ditch internal drilling again, shortens the tube well construction duration.The mud of construction pipe well is a part for construction rubbish, uses the precast dewatering pile tube belonging to engineering tubular pile directly to insert in foundation ditch and carries out the discharge that precipitation can reduce mud effectively, reduce the impact on environment, realize civilized construction, green construction.In addition, after construction, hole, slip casting are clearly carried out to precast dewatering pile tube, part of cement mortar by permeable hole to exosmosis and with soil solidifying outside described precast dewatering pile tube, precast dewatering pile tube is become uplift pile, for foundation ditch provides enough supports, improve the anti-floating performance of precast dewatering pile tube.
Accompanying drawing explanation
Accompanying drawing is utilized to be described further utility model, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the following drawings.
Structural representation when Fig. 1 is the utility model draining.
Structural representation when Fig. 2 is the utility model shut-in well.
Reference numeral: 1, precast dewatering pile tube, 2, permeable hole, 3, submersible pump, 4, outlet pipe, 5, underground water, 6, bottom board concrete, 7, slip casing by pressure pipe, 8, cement mortar, 11, pervious layer, 12, impervious layer.
Detailed description of the invention
With the following Examples the utility model is further described.
Precast dewatering pile tube in building foundation pit, as shown in Figure 1, described precast dewatering pile tube 1 is the cylindrical shape of hollow, comprises tube wall and taper pile top.The top of described tube wall has been spaced multiple permeable hole 2.In the present embodiment, the cross section of described permeable hole 2 is horn-like, and the diameter of cross section reduces along the external surface of tube wall gradually to inner surface direction, and the external diameter of described permeable hole 2 is 20mm, internal diameter is 8mm, is convenient to underground water 5 and enters rapidly in precast dewatering pile tube 1.
General soil horizon is divided into pervious layer 11 and impervious layer 12, underground water 5 mainly concentrates in pervious layer 11, after squeezing into described precast dewatering pile tube 1, described permeable hole 2 should all be arranged in pervious layer 11, permeable hole 2 just can be made to draw water maximizing efficiency, thus farthest reduce base mine water 5 content.In the present embodiment, described permeable hole 2 is arranged in the region of the downward 40cm ~ 60cm of upper surface of described precast dewatering pile tube 1.Now, described permeable hole 2 is all arranged in pervious layer 11, and underground water the having the greatest impact to foundation ditch of 40cm ~ 60cm degree of depth under foundation ditch, the moisture of draining this region can reduce the impact of underground water 5 on foundation ditch substantially when permeable hole 2 is less, and implementation efficiency maximizes.
Described precast dewatering pile tube 1 inside is provided with the cartridge filter of hollow cylindrical, and the upper end open of described cartridge filter, lower end closed, underground water 5 outside described precast dewatering pile tube 1 enters in precast dewatering pile tube 1 by permeable hole 2, enter after the filtration of cartridge filter in described cartridge filter, and the silt in underground water 5 is tackled between the inner surface and cartridge filter of described tube wall.Float when filtering to prevent cartridge filter, affect filter efficiency, in the present embodiment, the inner surface of described taper pile top is provided with fixture, when manufacturing described precast dewatering pile tube 1, described cartridge filter is fixed in described precast dewatering pile tube 1 by connecting described fixture in advance.In another embodiment, the lower end of described cartridge filter is the taper that size and described taper pile top match, when manufacturing described precast dewatering pile tube 1, the lower end of described cartridge filter is embedded in described taper pile top, thus cartridge filter is fixed in described precast dewatering pile tube 1.
The using method of precast dewatering pile tube in building foundation pit, comprises the following steps successively:
(1) manufacture precast dewatering pile tube 1 in advance, determine the diameter of described precast dewatering pile tube 1 according to the size of site operation environment and required submersible pump 3.Before manufacturing precast dewatering pile tube 1, first consider pile tube hole size, guarantee that submersible pump 3 can convenient and swiftly be put into and reclaim.Secondly, the permeable hole 2 of described precast dewatering pile tube 1 should be opened in pervious layer 11 scope, and it is horn-like that permeable hole 2 adopts prefabricated mould to make, and the diameter of cross section reduces along the external surface of tube wall gradually to inner surface direction.The external diameter of described permeable hole 2 is 20mm, and internal diameter is 8mm, and permeable hole 2 encloses layout 4 along precast dewatering pile tube 1 one, and described permeable hole 2 is arranged in the region of the downward 40cm ~ 60cm of upper surface of described precast dewatering pile tube 1.
(2) report and Foundation Pit Support Design file are surveyed in base area, determine total quantity, the arrangement pitch of described precast dewatering pile tube 1.
(3) precast dewatering pile tube 1 is installed, tries one's best away from structural column and shear wall when described precast dewatering pile tube 1 is installed.By root, water filling cleaning is carried out to described precast dewatering pile tube 1, until flow out clear water, avoids occurring " dried-up well ".
(4) put into submersible pump 3 and outlet pipe 4 in described precast dewatering pile tube 1, outlet pipe 4 connects submersible pump 3, is discharged outside foundation ditch by the underground water in described precast dewatering pile tube 1.First test before normal operation, determine described precast dewatering pile tube 1 whether can normal pumping, draining, occur with or without phenomenons such as gas leakage, blockings.Formal work of drawing water is dropped into after test is normal.
(5) shunt in a well by the bottom board concrete arranged at the upper surface of precast dewatering pile tube 1 after construction, close precast dewatering pile tube 1 one by one according to bottom board concrete construction speed.Before bottom board concrete is set, submersible pump 3 is first stopped to draw water.Bottom deposit due to precast dewatering pile tube 1 has a large amount of mud, therefore hole process is clearly carried out after stopping pumping fast, cement injection mortar 8, part of cement mortar 8 by permeable hole 2 to exosmosis and with the outer soil solidifying of described precast dewatering pile tube 1, by precast dewatering pile tube 1 and soil layer compact siro spinning technology, solve the problem because Precipitation Process causes periphery pervious layer 11 to loosen.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not the restriction to the utility model protection domain; although done to explain to the utility model with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement, and not depart from essence and the scope of the invention technical scheme.
Claims (7)
1. a precast dewatering pile tube in building foundation pit, is characterized in that, described precast dewatering pile tube is the cylindrical shape of hollow, comprises tube wall and taper pile top, and the top of described tube wall has been spaced multiple permeable hole; Described precast dewatering pile tube inside is provided with the cartridge filter of hollow cylindrical, and the upper end open of described cartridge filter, lower end closed, underground water outside described precast dewatering pile tube enters in precast dewatering pile tube by permeable hole, enter after the filtration of cartridge filter in described cartridge filter, and the silt in underground water is tackled between the inner surface and cartridge filter of described tube wall.
2. precast dewatering pile tube in a kind of building foundation pit according to claim 1, is characterized in that, the cross section of described permeable hole is horn-like, and the diameter of cross section reduces along the external surface of tube wall gradually to inner surface direction.
3. precast dewatering pile tube in a kind of building foundation pit according to claim 2, is characterized in that, the external diameter of described permeable hole is 20mm, and internal diameter is 8mm.
4., according to precast dewatering pile tube in the arbitrary described a kind of building foundation pit of claims 1 to 3, it is characterized in that, described permeable hole is arranged in the region of the downward 40cm ~ 60cm of upper surface of described precast dewatering pile tube.
5., according to precast dewatering pile tube in the arbitrary described a kind of building foundation pit of claims 1 to 3, it is characterized in that, described permeable hole adopts prefabricated mould pore-forming.
6. precast dewatering pile tube in a kind of building foundation pit according to claim 1, it is characterized in that, the inner surface of described taper pile top is provided with fixture, and described cartridge filter is fixed in described precast dewatering pile tube by connecting described fixture.
7. precast dewatering pile tube in a kind of building foundation pit according to claim 1, it is characterized in that, the lower end of described cartridge filter is the taper that size and described taper pile top match, the lower end of described cartridge filter is embedded in described taper pile top, thus is fixed on by cartridge filter in described precast dewatering pile tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781757.9U CN205012325U (en) | 2015-10-10 | 2015-10-10 | Prefabricated precipitation tubular pile in building foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781757.9U CN205012325U (en) | 2015-10-10 | 2015-10-10 | Prefabricated precipitation tubular pile in building foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205012325U true CN205012325U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520781757.9U Expired - Fee Related CN205012325U (en) | 2015-10-10 | 2015-10-10 | Prefabricated precipitation tubular pile in building foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205012325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178289A (en) * | 2015-10-10 | 2015-12-23 | 江西建工第二建筑有限责任公司 | Prefabricated downcast pipe pile in building foundation pit and use method thereof |
| CN106193078A (en) * | 2016-09-22 | 2016-12-07 | 中建八局第四建设有限公司 | A kind of stagewise sealing downcomer |
| CN108894240A (en) * | 2018-06-26 | 2018-11-27 | 兰州理工大学 | Recyclable drainage of foundation pit system and recovery method |
-
2015
- 2015-10-10 CN CN201520781757.9U patent/CN205012325U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178289A (en) * | 2015-10-10 | 2015-12-23 | 江西建工第二建筑有限责任公司 | Prefabricated downcast pipe pile in building foundation pit and use method thereof |
| CN105178289B (en) * | 2015-10-10 | 2017-10-31 | 江西建工第二建筑有限责任公司 | Precast dewatering pile tube and its application method in building foundation pit |
| CN106193078A (en) * | 2016-09-22 | 2016-12-07 | 中建八局第四建设有限公司 | A kind of stagewise sealing downcomer |
| CN108894240A (en) * | 2018-06-26 | 2018-11-27 | 兰州理工大学 | Recyclable drainage of foundation pit system and recovery method |
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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 |
Granted publication date: 20160203 Termination date: 20181010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |