CN1594750A - Wings added reinforced concrete filling and supporting water-tight pile and construction method thereof - Google Patents
Wings added reinforced concrete filling and supporting water-tight pile and construction method thereof Download PDFInfo
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- CN1594750A CN1594750A CN 03144257 CN03144257A CN1594750A CN 1594750 A CN1594750 A CN 1594750A CN 03144257 CN03144257 CN 03144257 CN 03144257 A CN03144257 A CN 03144257A CN 1594750 A CN1594750 A CN 1594750A
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Abstract
Wings added reinforced concrete filling and supporting water-tight pile is provided. The wings with non-reinforced concrete are connected to two sides of the pile along the pile central line. Respective wings of the single supporting pile are connected together. The construction method is followed: in the process of drilling and bottling supporting pile, grooving along the pile central line at one or two sides of the pile, generating the concrete wings when bottling the concrete. The construction method is simple and can effectively shorten the construction period and save the cost and space. It is easier to dispose the local drain than other water drain stop curtain.
Description
Technical field
The invention belongs to building lot and handle the concrete stake that uses, particularly a kind of wing steel concrete poured support water-seal pile and job practices thereof of adding.
Background technology
Reinforced concrete bored pile has been a kind of technology of maturation as the foundation pit supporting construction body at home, particularly uses very extensive in the foundation pit supporting project of Beijing-Tianjin area.But the support water stop of deep foundation ditch all rests on the high diaphragm wall of price always, the bored pile supporting adds deep-mixed pile or high-pressure rotary-spray pile water stopping curtain, and domestic associated technology has two kinds: a kind of CN1127819 inside spin drill-pouring pile series and job practices and equipment.This technology is to form the defeated soil of helical conveyer system with auger stem and the outer tube that is enclosed within outside it.Another kind of CN1235226 filling pile ' s after grouting keeps off two-in-one pattern foundation pit supporting structure of native sealing and squeezing unit, and this technology is with the pre-buried high-pressure slip-casting pipe of drilled pile, and the back forms water-stopping structure in high pressure soil compaction mode.Though these two kinds of water-stop curtain technology costs are than diaphragm wall economy, overall cost is still higher, and needs distinct device to march into the arena, and operation is comparatively complicated.So select a kind ofly can be used as pattern foundation pit supporting structure, the technology that can solve sealing problem and economical rationality again is the problem that vast geotechnical engineering technician is studying always, the wing steel concrete poured support water-seal pile that adds of this paper introduction is a kind of like this technology.
Summary of the invention
Technical problem to be solved by this invention is: a kind of wing steel concrete poured support water-seal pile and job practices thereof of adding is provided.This overall cost is low, and use equipment is reequiped on original basis and got final product, and the job practices operation is simple.
Technical scheme of the present invention is:
A kind of wing steel concrete poured support water-seal pile that adds is characterized in that: be connected with the assistant (2) of plain concrete in the both sides of pile body (1) along the pile body centerline direction, the assistant of each independent soldier pile links together.
Originally add the job practices of wing steel concrete poured support water-seal pile: be in the construction drill poured support stake process, in boring time, is in a side of stake, slot along the campshed centerline direction, produce the plain concrete assistant in its position during concrete perfusion, the assistant of each independent soldier pile closely links together.
Originally adding the job practices of wing steel concrete poured support water-seal pile, can also be in the construction drill poured support stake process, in the both sides of stake, slots concrete perfusion along the campshed centerline direction in the time of boring.
Add the job practices of wing steel concrete poured support water-seal pile, first pile hole, wing groove is cut with special equipment in the back, last stake, wing fluid concrete one-shot forming together.
Effect of the present invention is:
Job practices technology is simple: can effectively shorten the integral construction duration, save the construction period more than 30% than adopting supporting to add water-stop curtain; Save construction costs: through saving cost more than 15% to the part engineering analysis; The space saves space: except that comparable water-stop curtain is saved space about 1m, also avoid the multiple machinery in construction plant to intert operation; If it is the part occurring leaks, simpler and easy during processing than other water-stop curtains; Because what form between piling wall is rigid joint, be impregnated with the specific (special) requirements engineering to anti-, can adopt eject slot fast hardening concrete or other chemical waterproofing materials; For avoiding occurring leaking appearance, the strictness of reply job practices technological requirement.
Cost compares: warp and the part engineering contrast of having constructed, and add wing steel concrete poured support water-seal pile as employing and carry out foundation pit support construction, overall cost is more economical, below is the part situation of two projects:
| Project | Type | The stake footpath | Stake is long | 2m section stake number | Amount (m 3) | Unit price | Cost | The cost ratio | |
| Tianjin Underground the 17th mark | Bored pile | ????800 | ????19.2 | ????2 | ??19.29 | ??913 | ??25199.0 | ????1 | |
| Deep-mixed pile | ????700 | ????17 | ????8 | ??52.31 | ??145 | ||||
| Add wing reinforced concrete pile | Stake | ????800 | ????19.2 | ????2 | ??19.29 | ??913 | ??18429.74 | ??0.7314 | |
| The wing | ??200×200 | ????17 | ????2 | ??1.36 | ??600 | ||||
| Project | The stake type | The stake footpath | Stake is long | 1.8m section stake number | Amount (m 3) | Unit price | Cost | The cost ratio | |
| Huge day wealth software mansion | Bored pile | ????700 | ????16.5 | ????2 | ??12.69 | ??870 | ??14274.4 | ????1 | |
| Deep-mixed pile | ????700 | ????14 | ????4 | ??21.54 | ??150 | ||||
| Add wing reinforced concrete pile | Stake | ????700 | ????16.5 | ????2 | ??12.69 | ??870 | ??11715.3 | ??0.8207 | |
| The wing | ??200×200 | ????14 | ????2 | ??1.12 | ??600 | ||||
Description of drawings
Fig. 1 adds wing steel concrete poured support water-seal pile schematic diagram
Fig. 2 is the sequential schematic of adding wing steel concrete poured support water-seal pile and job practices
The specific embodiment
A kind of as shown in Figure 1 wing steel concrete poured support water-seal pile that adds is connected with the assistant (2) of plain concrete along the pile body centerline direction in the both sides of pile body (1), the assistant of each independent soldier pile links together.
Add wing steel concrete poured support water-seal pile, be in the construction drill poured support stake process, slot in the both sides of stake (along the campshed centerline direction) in the time of boring, produce the plain concrete assistant in its position during concrete perfusion, assistant closely links together each independent soldier pile, not only plays the pattern foundation pit supporting structure effect but also plays stagnant water effect.Construction technology: first pile hole, wing groove is cut with special equipment in the back, last stake, wing fluid concrete one-shot forming together.
The construction technique flow process is: the pore-forming pile-forming machine perching, and---drilling and forming hole---is carried brill---on drill bit, and assigned address installs wing groove hole-forming device and protector (is fixed drill bit simultaneously, drill bit can only lean on wire rope pulling die-cut up and down, can not rotate)---open the wing to designing the sealing absolute altitude---carry brills (whether considering the clear hole of needs rig) according to strata condition---displacement of pore-forming stake machine---irritate grey pile-forming machine perching---descending reinforcing cage---downcomer---the clear hole of secondary---concrete perfusion (, the wing is poured into a design stake top mark height together)---pore-forming and displacement---carry out next section construction.
Its sequence of construction as shown in Figure 2
The stability analysis of wing slotted eye wall: because wing groove is small-sized, the general thick 200mm of wing groove, wide 100～300mm, most design soldier pile clear distances are 200mm, so the most wide 200mm of wing groove.From the angle analysis of structural mechanics cantilever, so little variation can not influence wing slotted eye wall stability, more can not influence the stability of whole stake hole wall, as long as mud off is proper, can not influence the concrete pouring quality.Analyze by rule of thumb, wing groove size is much smaller than diaphragm wall, and wing groove sidewall soil body stability necessarily is better than the single construction section cell wall of diaphragm wall soil body stability under the identical geological conditions.
Claims (4)
1, a kind of wing steel concrete poured support water-seal pile that adds is characterized in that: be connected with the assistant of plain concrete in the both sides of pile body along the pile body centerline direction, the assistant of each independent soldier pile links together.
2 one kinds of job practicess of adding wing steel concrete poured support water-seal pile, it is characterized in that: be in the construction drill poured support stake process, in boring time, is in a side of stake, slot along the campshed centerline direction, produce the plain concrete assistant in its position during concrete perfusion, the assistant of each independent soldier pile closely links together.
3, job practices of adding wing steel concrete poured support water-seal pile according to claim 2 is characterized in that: be in the construction drill poured support stake process, in the both sides of stake, slot concrete perfusion along the campshed centerline direction in the time of boring.
4, according to claim 2 or 3 described job practicess of adding wing steel concrete poured support water-seal pile, it is characterized in that: its construction technique: first pile hole, wing groove is cut with special equipment in the back, last stake, wing fluid concrete one-shot forming together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144257 CN1594750A (en) | 2003-09-10 | 2003-09-10 | Wings added reinforced concrete filling and supporting water-tight pile and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03144257 CN1594750A (en) | 2003-09-10 | 2003-09-10 | Wings added reinforced concrete filling and supporting water-tight pile and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1594750A true CN1594750A (en) | 2005-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03144257 Pending CN1594750A (en) | 2003-09-10 | 2003-09-10 | Wings added reinforced concrete filling and supporting water-tight pile and construction method thereof |
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| CN (1) | CN1594750A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831735A (en) * | 2015-04-30 | 2015-08-12 | 中冶天工集团有限公司 | Water stop support structure integrating piles and screens as well as construction method and construction device thereof |
| CN105464079A (en) * | 2015-12-24 | 2016-04-06 | 李金良 | Forming construction method of long-spiral pore-forming pile-slab-pile supporting and anti-seepage continuous wall |
| CN105507338A (en) * | 2015-12-24 | 2016-04-20 | 李金良 | Campshed and inserted piled slab combined supporting water-plugging continuous wall forming construction method |
-
2003
- 2003-09-10 CN CN 03144257 patent/CN1594750A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104831735A (en) * | 2015-04-30 | 2015-08-12 | 中冶天工集团有限公司 | Water stop support structure integrating piles and screens as well as construction method and construction device thereof |
| CN105464079A (en) * | 2015-12-24 | 2016-04-06 | 李金良 | Forming construction method of long-spiral pore-forming pile-slab-pile supporting and anti-seepage continuous wall |
| CN105507338A (en) * | 2015-12-24 | 2016-04-20 | 李金良 | Campshed and inserted piled slab combined supporting water-plugging continuous wall forming construction method |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |