CN104480929B - A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement - Google Patents
A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement Download PDFInfo
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- CN104480929B CN104480929B CN201410552785.3A CN201410552785A CN104480929B CN 104480929 B CN104480929 B CN 104480929B CN 201410552785 A CN201410552785 A CN 201410552785A CN 104480929 B CN104480929 B CN 104480929B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Abstract
The invention discloses a kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement, determines the stake position of rotary digging stake and artificial digging pile in margin of foundation pit according to the occlusion design conditions of interlocking pile first；By the reinforcing bar cage hoisting that makes in stake holes, casting concrete；After rotary digging pile driving construction is completed and reaches design strength；Installation equipment carries out the shoveling of lower section pile body and retaining wall is poured；Bar planting is carried out on rotary digging stake stake surface, and bar planting is reliably connected with artificial digging pile reinforcing bar；Pour manually digging hole pile concrete.After basement main structure construction terminates, interlocking pile pile wall is destroyed using pneumatic pick, with crooked chisel dabbing pile concrete face, and cut cystosepiment, pull out pre-buried beard muscle；Cloth reinforced mesh, is connected with steel wire lashing with pre-buried beard muscle；Waterproof pea gravel concreten is sprayed with high-pressure spraying machine；Carry out smearing pressure receipts light using light claying knife is received.The characteristics of present invention has reliable construction technology, good occlusion effect, reduction of erection time, saving construction cost.
Description
Technical field
The present invention relates to technical field of building construction, particularly belongs to a kind of construction method that interlocking pile is applied to permanent outer wall of basement.
Background technology
In urban core region, deep-foundation pit engineering presents the features such as quantity is more, scale is big, depth is deep, surrounding enviroment are complicated, supporting and the unreliable safety that can affect deep pit monitor, place operation and Adjacent Buildings of draining, support form is improper to have a negative impact to periphery pipeline, be a difficult problem for design of deep foundation pit and construction.Foundation pit supporting pile has material and artificial input big, belong to temporary structure, if not being used in Main Underground body structure, will result in the larger wasting of resources, this kind of temporary supporting stake is used for permanent basement load-carrying members, can save resources, reduction cost, the effect of green construction.
Content of the invention
It is an object of the invention to provide a kind of can under the narrow and small place complex environment of urban core region deep basal pit the construction method that interlocking pile is applied to permanent outer wall of basement, earthwork excavated volume can be reduced, reduce talent's machine input, temporary support structures are used for for good and all lower outdoor wall construction simultaneously, construction workload can be greatly reduced.
Technical scheme is as follows：
A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement, is carried out according to following construction procedure：
A, according to pattern foundation pit supporting structure interlocking pile occlusion design and piling plan, unwrapping wire is carried out using total powerstation, sampling point is drawn by true fixed pile sampling point with ten reticules, then earth excavation is to clay mud, shield-tube embedment is carried out, with ball clay or viscosity clod around casing, landfill compacting, rotary digging stake pile hole construction is carried out using rotary drilling rig, rig is in place first, and drill bit answers align piles position, and drilling rod center, bit central, casing center three are on same plumb line；
B, creep into projected depth after, carry out first time borehole cleaning, first by drill bit lift-off bottom hole 80-100mm, input proportion is circulated less than 1.20 new mud, and suspension disintegrating slag in bottom hole sediment and hole is cemented out, and in ground spliced conduit and does sealing closed-water test, after leakage test is qualified, vertical seal transfers conduit, puts sebific duct, carries out second borehole cleaning；
C, steel reinforcement cage bracing frame is installed on ground; bearing support is put by the spacing of 2～3m on the same straight line in same level; then straight for the cage bar for preparing fixed length is placed on bearing support; stirrup is inserted in cage bar by design requirement; and keep vertical with cage bar; spot welding or colligation, welding or banding steel cage protective layer cushion block is carried out, protective layer pad thickness is 40-60mm；
After the completion of d, fabrication of reinforcing cage, pre-buried with inwall tension rib, colligation or spot welding are fixed；Rubber fastening band is installed and tamps cystosepiment, when processing so as to follow-up pile wall interaction, cut inwall tension rib tension rib；
E, the lifting of steel reinforcement cage, if 2～4 steel reinforcement cages hang Heave Here, hang steel reinforcement cage and enter hole, alignment hole position is transferred slowly, it is ensured that do not rotated in steel reinforcement cage decentralization process, then concrete perfusion, using funnel and the first storage concrete of storage bin hopper storage, perfusion is carried out continuously, the rate of flooding of concrete, controls in 10～12m per hour3, with the lifting height of plummet detection concrete surface, the Rational Depth of conduit is kept, before conduit is lifted every time, detects concrete surface height inside and outside once pipe；
After f, rotary digging pile driving construction terminate, carry out manual digging pile construction, with total powerstation guide pile position central point, aperture walling crib top surface absolute altitude is positioned with level gauge, build digging pile hole well walling crib by laying bricks or stones, artificial digging pile shoveling order is first digging mid portion, rear perimeter edge, one lift hanger of installation suitable for reading per stake holes, lifted with hoist engine, after being hung on ground, being transported to outside foundation ditch top with handbarrow and concentrating stacking, then with spoil ground is transported to outside automobile, in hole, subsoil water is taken with digging with being hung out muddy water with well-bucket；
G, pour artificial digging pile pile hole forming breast wall concrete, it is high that a deep section is often dug, colligation retaining wall reinforcing bar immediately, breast wall concrete handbarrow is transported to aperture, then is vertically transported to operating surface in hole with well-bucket, with artificial from retaining wall pouring suitable for reading, in breast wall concrete construction, a perpendicularity is checked per three sections, by that analogy, until constructing to designed elevation；
H, manually digging hole pile cages are installed after terminating, and are carried out rotary digging stake and are engaged node bar planting process with artificial digging pile, reject stake face first with chip-axe, electric pick, concrete is chopped into smooth little pitted skin, chops stricture of vagina perpendicular to horizontal line；Bar planting is carried out on rotary digging stake stake surface, and bar planting is reliably connected with artificial digging pile reinforcing bar, artificial digging pile filling concrete works；
Basement main structure construction is carried out after the completion of i, interlocking pile, the process of pile wall interaction after the completion for the treatment of basement main structure construction, is carried out, and interlocking pile breast wall concrete is destroyed using pneumatic pick, is exposed pile body；With crooked chisel dabbing pile concrete face, and pre-buried cystosepiment is cut, pull out pre-buried inwall tension rib, lay inwall bar-mat reinforcement, it is connected or spot welding with chemise embedded ribs steel wire lashing, with high-pressure spraying machine segmentation, layering injection waterproof pea gravel concreten, carries out smearing pressure receipts light using light claying knife is received.
Finished product punching block of the described artificial digging pile pile hole forming dado template using 0.3～0.5 meter of specification of customization, is connected with U-shaped card between template, respectively sets one steel rings up and down and hold out against, and steel ring is made up of two semicircular, is connected with nut；Formwork erection is carried out behind stake position in school before artificial digging pile pile hole forming dado template supporting, is repeated to be used in turn using tearing upper section open, propping up lower section, after formwork erection, the repetition measurement stake heart and diameter, carry out next procedure construction after confirmation again.
Material used by the casing is welded work for 5mm roll of steel plate, and its internal diameter is more than stake holes diameter 100-150mm.
The material of the inwall tension rib is identical with inwall reinforcing bar, and spacing is 200mm ~ 400mm；According to inwall design thickness, the inwall bar-mat reinforcement, spacing are 200mm ~ 300mm to length；Depending on monolayer or double-deck laying are according to inwall design thickness.
The rotary digging stake is rotary digging bored concrete pile, material therefor is armored concrete, the artificial digging pile is manually digging hole filling pile, material therefor is armored concrete, the interlocking pile is the campshed that campshed rotary digging stake is arranged indirectly with artificial digging pile, the interlocking pile occlusion bar planting material therefor is reinforcing bar, and its spacing is 200mm ~ 400mm.
The present invention can be in urban core region, deep-foundation pit engineering presents the features such as quantity is more, scale is big, depth is deep, surrounding enviroment are complicated, supporting and the unreliable safety that can affect deep pit monitor, place operation and Adjacent Buildings of draining, support form is improper to have a negative impact to periphery pipeline, be a difficult problem for design of deep foundation pit and construction.Foundation pit supporting pile has material and artificial input big, belong to temporary structure, if not being used in Main Underground body structure, will result in the larger wasting of resources, this kind of temporary supporting stake is used for permanent basement load-carrying members, can save resources, reduction cost, the effect of green construction.
Description of the drawings
Fig. 1 is the structural plan schematic diagram of the present invention；
Fig. 2 is the side schematic view of the present invention.
Labelling in accompanying drawing for：1- peripheries soil, 2- foundation ditches, 3- rotary digging stakes, 4- artificial digging piles, 5- man-made digging pile mould-pipes, 6- are engaged node bar planting.
Specific embodiment
Referring to accompanying drawing, a kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement, carry out according to following construction procedure：
A, according to pattern foundation pit supporting structure interlocking pile occlusion design and piling plan, unwrapping wire is carried out using total powerstation, sampling point is drawn by true fixed pile sampling point with ten reticules, then earth excavation is to clay mud, shield-tube embedment is carried out, with ball clay or viscosity clod around casing, landfill compacting, rotary digging stake pile hole construction is carried out using rotary drilling rig, rig is in place first, and drill bit answers align piles position, and drilling rod center, bit central, casing center three are on same plumb line；
B, creep into projected depth after, carry out first time borehole cleaning, first by drill bit lift-off bottom hole 80-100mm, input proportion is circulated less than 1.20 new mud, and suspension disintegrating slag in bottom hole sediment and hole is cemented out, and in ground spliced conduit and does sealing closed-water test, after leakage test is qualified, vertical seal transfers conduit, puts sebific duct, carries out second borehole cleaning；
C, steel reinforcement cage bracing frame is installed on ground; bearing support is put by the spacing of 2～3m on the same straight line in same level; then straight for the cage bar for preparing fixed length is placed on bearing support; stirrup is inserted in cage bar by design requirement; and keep vertical with cage bar; spot welding or colligation, welding or banding steel cage protective layer cushion block is carried out, protective layer pad thickness is 40-60mm；
After the completion of d, fabrication of reinforcing cage, pre-buried with inwall tension rib, colligation or spot welding are fixed；Rubber fastening band is installed and tamps cystosepiment, when processing so as to follow-up pile wall interaction, cut inwall tension rib tension rib；
E, the lifting of steel reinforcement cage, if 2～4 steel reinforcement cages hang Heave Here, hang steel reinforcement cage and enter hole, alignment hole position is transferred slowly, it is ensured that do not rotated in steel reinforcement cage decentralization process, then concrete perfusion, using funnel and the first storage concrete of storage bin hopper storage, perfusion is carried out continuously, the rate of flooding of concrete, controls in 10～12m per hour3, with the lifting height of plummet detection concrete surface, the Rational Depth of conduit is kept, before conduit is lifted every time, detects concrete surface height inside and outside once pipe；
After f, rotary digging pile driving construction terminate, carry out manual digging pile construction, with total powerstation guide pile position central point, aperture walling crib top surface absolute altitude is positioned with level gauge, build digging pile hole well walling crib by laying bricks or stones, artificial digging pile shoveling order is first digging mid portion, rear perimeter edge, one lift hanger of installation suitable for reading per stake holes, lifted with hoist engine, after being hung on ground, being transported to outside foundation ditch top with handbarrow and concentrating stacking, then with spoil ground is transported to outside automobile, in hole, subsoil water is taken with digging with being hung out muddy water with well-bucket；
G, pour artificial digging pile pile hole forming breast wall concrete, it is high that a deep section is often dug, colligation retaining wall reinforcing bar immediately, breast wall concrete handbarrow is transported to aperture, then is vertically transported to operating surface in hole with well-bucket, with artificial from retaining wall pouring suitable for reading, in breast wall concrete construction, a perpendicularity is checked per three sections, by that analogy, until constructing to designed elevation；
H, manually digging hole pile cages are installed after terminating, and are carried out rotary digging stake and are engaged node bar planting process with artificial digging pile, reject stake face first with chip-axe, electric pick, concrete is chopped into smooth little pitted skin, chops stricture of vagina perpendicular to horizontal line；Bar planting is carried out on rotary digging stake stake surface, and bar planting is reliably connected with artificial digging pile reinforcing bar, artificial digging pile filling concrete works；
Basement main structure construction is carried out after the completion of i, interlocking pile, the process of pile wall interaction after the completion for the treatment of basement main structure construction, is carried out, and interlocking pile breast wall concrete is destroyed using pneumatic pick, is exposed pile body；With crooked chisel dabbing pile concrete face, and pre-buried cystosepiment is cut, pull out pre-buried inwall tension rib, lay inwall bar-mat reinforcement, it is connected or spot welding with chemise embedded ribs steel wire lashing, with high-pressure spraying machine segmentation, layering injection waterproof pea gravel concreten, carries out smearing pressure receipts light using light claying knife is received.
Finished product punching block of the described artificial digging pile pile hole forming dado template using 0.3～0.5 meter of specification of customization, is connected with U-shaped card between template, respectively sets one steel rings up and down and hold out against, and steel ring is made up of two semicircular, is connected with nut；Formwork erection is carried out behind stake position in school before artificial digging pile pile hole forming dado template supporting, is repeated to be used in turn using tearing upper section open, propping up lower section, after formwork erection, the repetition measurement stake heart and diameter, carry out next procedure construction after confirmation again.Material used by casing is welded work for 5mm roll of steel plate, and its internal diameter is more than stake holes diameter 100-150mm.
The material of inwall tension rib is identical with inwall reinforcing bar, and spacing is 200mm ~ 400mm；According to inwall design thickness, the inwall bar-mat reinforcement, spacing are 200mm ~ 300mm to length；Depending on monolayer or double-deck laying are according to inwall design thickness.Rotary digging stake is rotary digging bored concrete pile, material therefor is armored concrete, the artificial digging pile is manually digging hole filling pile, material therefor is armored concrete, the interlocking pile is the campshed that campshed rotary digging stake is arranged indirectly with artificial digging pile, the interlocking pile occlusion bar planting material therefor is reinforcing bar, and its spacing is 200mm ~ 400mm.
A kind of structure of the pile wall interaction that interlocking pile is used for permanent outer wall of basement for building according to the method described above, including foundation ditch, the periphery soil body, rotary digging stake, artificial digging pile, man-made digging pile mould-pipe, occlusion node bar planting, rotary digging stake is directly engaged with artificial digging pile, the arrangement mode of interlocking pile is that a rotary digging bored concrete pile and an artificial digging pile are arranged indirectly, by being engaged bar planting welding or colligation connection, inwall and interlocking pile connect through the colligation of inwall tension rib or are welded to connect occlusion node.
Claims (5)
1. a kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement, it is characterised in that carry out according to following construction procedure：
A, according to pattern foundation pit supporting structure interlocking pile occlusion design and piling plan, unwrapping wire is carried out using total powerstation, sampling point is drawn by true fixed pile sampling point with ten reticules, then earth excavation is to clay mud, shield-tube embedment is carried out, with ball clay around casing, landfill compacting, rotary digging stake pile hole construction is carried out using rotary drilling rig, rig is in place first, drill bit align piles position, and drilling rod center, bit central, casing center three are on same plumb line；
B, creep into projected depth after, carry out first time borehole cleaning, first by drill bit lift-off 80～100mm of bottom hole, input proportion is circulated less than 1.20 new mud, and suspension disintegrating slag in bottom hole sediment and hole is cemented out, and in ground spliced conduit and does sealing closed-water test, after leakage test is qualified, vertical decentralization sealing duct, puts sebific duct, carries out second borehole cleaning；
C, steel reinforcement cage bracing frame is installed on ground; bracing frame is put by the spacing of 2～3m on the same straight line in same level; then straight for the cage bar for preparing fixed length is placed on bracing frame; stirrup is inserted in cage bar by design requirement; and keep vertical with cage bar; spot welding or colligation, welding or banding steel cage protective layer cushion block is carried out, protective layer pad thickness is 40～60mm；
After the completion of d, fabrication of reinforcing cage, pre-buried with inwall tension rib, colligation or spot welding are fixed；Rubber fastening band is installed and tamps cystosepiment, when processing so as to follow-up pile wall interaction, dig out inwall tension rib；
E, the lifting of steel reinforcement cage, if 2～4 steel reinforcement cages hang Heave Here, hang steel reinforcement cage and enter hole, alignment hole position is transferred slowly, it is ensured that do not rotated in steel reinforcement cage decentralization process, then concrete perfusion, using funnel and the first storage concrete of storage bin hopper storage, perfusion is carried out continuously, the rate of flooding of concrete, controls in 10～12m per hour3, with the lifting height of plummet detection concrete surface, the Rational Depth of conduit is kept, before conduit is lifted every time, detects concrete surface height inside and outside once pipe；
After f, rotary digging pile driving construction terminate, carry out manual digging pile construction, with total powerstation guide pile position central point, aperture walling crib top surface absolute altitude is positioned with level gauge, build artificial digging pile aperture walling crib by laying bricks or stones, artificial digging pile shoveling order is first digging mid portion, rear perimeter edge, one lift hanger of installation suitable for reading per stake holes, lifted with hoist engine, after being hung on ground, being transported to outside foundation ditch top with handbarrow and concentrating stacking, then with spoil ground is transported to outside automobile, in hole, subsoil water is taken with digging with being hung out muddy water with well-bucket；
G, pour artificial digging pile pile hole forming breast wall concrete, it is high that a deep section is often dug, colligation retaining wall reinforcing bar immediately, breast wall concrete handbarrow is transported to aperture, then is vertically transported to operating surface in hole with well-bucket, with artificial from retaining wall pouring suitable for reading, in breast wall concrete construction, a perpendicularity is checked per three sections, by that analogy, until constructing to designed elevation；
H, manually digging hole pile cages are installed after terminating, and are carried out rotary digging stake and are engaged node bar planting process with artificial digging pile, reject stake face first with chip-axe, electric pick, concrete is chopped into smooth little pitted skin, chops stricture of vagina perpendicular to horizontal line；Bar planting is carried out on rotary digging stake stake surface, and bar planting is reliably connected with artificial digging pile reinforcing bar, artificial digging pile filling concrete works；
Basement main structure construction is carried out after the completion of i, interlocking pile, the process of pile wall interaction after the completion for the treatment of basement main structure construction, is carried out, and interlocking pile breast wall concrete is destroyed using pneumatic pick, is exposed pile body；With crooked chisel dabbing pile concrete face, and pre-buried cystosepiment is cut, pull out pre-buried inwall tension rib, lay inwall bar-mat reinforcement, it is connected or spot welding with chemise embedded ribs steel wire lashing, with high-pressure spraying machine segmentation, layering injection waterproof pea gravel concreten, carries out smearing pressure receipts light using light claying knife is received.
2. the pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement according to claim 1, it is characterized in that, finished product punching block of the described artificial digging pile pile hole forming dado template using 0.3～0.5 meter of specification, connected with U-shaped card between template, respectively set one steel ring up and down to hold out against, steel ring is made up of two semicircular, is connected with nut；Formwork erection is carried out behind stake position in school before artificial digging pile pile hole forming dado template supporting, is repeated to be used in turn using tearing upper section open, propping up lower section, after formwork erection, the repetition measurement stake heart and diameter, carry out next procedure construction after confirmation again.
3. the pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement according to claim 1, it is characterised in that the casing is welded work by 5mm roll of steel plate, its internal diameter are more than stake holes 100 ~ 150mm of diameter.
4. the pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement according to claim 1, it is characterised in that the material of the inwall tension rib is identical with inwall reinforcing bar, spacing are 200mm ~ 400mm；Length determines that according to inwall design thickness the inwall bar-mat reinforcement, spacing are 200mm ~ 300mm；Depending on monolayer or double-deck laying are according to inwall design thickness.
5. the pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement according to claim 1, it is characterized in that, the rotary digging stake is rotary digging bored concrete pile, material therefor is armored concrete, the artificial digging pile is manually digging hole filling pile, and material therefor is armored concrete, and the interlocking pile is the campshed that rotary digging stake is arranged indirectly with artificial digging pile, the interlocking pile occlusion bar planting material therefor is reinforcing bar, and its spacing is 200mm ~ 400mm.
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| CN201410552785.3A CN104480929B (en) | 2014-10-17 | 2014-10-17 | A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement |
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| CN201410552785.3A CN104480929B (en) | 2014-10-17 | 2014-10-17 | A kind of pile wall interaction construction method that interlocking pile is applied to permanent outer wall of basement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105040707B (en) * | 2015-07-03 | 2017-08-04 | 中建四局第六建筑工程有限公司 | Combine the construction method of close pile deep foundation pit support building enclosure |
| CN105970972A (en) * | 2016-06-21 | 2016-09-28 | 中铁第四勘察设计院集团有限公司 | Novel secant pile supporting structure and construction method thereof |
| CN109339079B (en) * | 2018-12-05 | 2023-12-22 | 中铁科学研究院有限公司 | Foundation pit water stopping system adjacent to river permeable stratum and construction process thereof |
| CN111270676A (en) * | 2020-02-10 | 2020-06-12 | 上海市城市建设设计研究总院（集团）有限公司 | Pile-wall integrated construction method for manual hole digging |
| CN111851571A (en) * | 2020-07-30 | 2020-10-30 | 深圳市岩土综合勘察设计有限公司 | Construction method of inter-pile soil retaining plate |
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| JP4441731B2 (en) * | 2004-07-26 | 2010-03-31 | 清水建設株式会社 | Synthetic underground wall |
| JP5439121B2 (en) * | 2009-11-05 | 2014-03-12 | 株式会社竹中工務店 | Building upside-down method |
| CN201762710U (en) * | 2010-06-30 | 2011-03-16 | 中国京冶工程技术有限公司 | Pile-wall combined enclosing structure for offshore deep foundation pit |
| CN102418348B (en) * | 2011-08-23 | 2014-11-05 | 谢清光 | Construction technology of using occlusive pile to form underground continuous wall |
| CN103981896B (en) * | 2014-04-11 | 2016-01-20 | 中建四局第六建筑工程有限公司 | The seamless link construction method of a kind of outer wall of basement and fender post |
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