CN206971232U - A kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile - Google Patents

A kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile Download PDF

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Publication number
CN206971232U
CN206971232U CN201720758855.XU CN201720758855U CN206971232U CN 206971232 U CN206971232 U CN 206971232U CN 201720758855 U CN201720758855 U CN 201720758855U CN 206971232 U CN206971232 U CN 206971232U
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CN
China
Prior art keywords
steel
inner support
smw engineering
engineering method
pile
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Expired - Fee Related
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CN201720758855.XU
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Chinese (zh)
Inventor
刘伟锋
宋国台
林峰
黄勇
金叶汶
王彦
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ZHEJIANG ZHONGCHENG BUILDING ENGINEERING Co Ltd
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ZHEJIANG ZHONGCHENG BUILDING ENGINEERING Co Ltd
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Priority to CN201720758855.XU priority Critical patent/CN206971232U/en
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Publication of CN206971232U publication Critical patent/CN206971232U/en
Expired - Fee Related legal-status Critical Current
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Abstract

It the utility model is related to a kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile, including double SMW engineering methods stake system, the oblique interior support system of soil cement shaped steel.The double SMW engineering methods stake forms diaphram wall containment system, and the oblique inner support of soil cement shaped steel is connected by being supported with the row's SMW engineering method stakes of inner side one.The utility model Design of Retaining Structure is rationally effective, and safety coefficient is high;Rationally it is combined using SMW engineering method stake anti-bending strengths with soil cement shaped steel compressive property, it is reliable effective to go along with sb. to guard him supporting construction connection, improves the globality between each system of foundation pit enclosure, part resource recoverable, meets green construction requirement.The occurrence of similar nail Construction technique, easy construction, underground staged construction cycle are short, make full use of each system self-characteristic, and the phase can effectively prevent big bottom plate from floating after construction.

Description

A kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile
Technical field
The utility model belongs to underground engineering foundation pit enclosure technical field, and in particular to a kind of oblique inner support of shaped steel cement earth pile Foundation pit enclosure structure.
Background technology
Because China's land resource is increasingly rare, it is imperative that development underground engineering improves land utilization ratio.But deep basal pit Underground engineering construction process is longer to cause larger risk, in order to shortening deep basal pit on the premise of construction safety is ensured The construction period of next stage, so that using a kind of oblique inner support building enclosure of shaped steel cement earth pile need to safely and fast apply Work., need to be by basement section construction in hole according to existing construction method, then set interior throwing support to apply at the bottom plate constructed in advance Work, finally construct and throw support to the basement for going along with sb. to guard him side, the peace when construction period, the next stage worked with delaying longer, influence deep basal pit Quan Xing, personal safety is threatened.Also construction weak point during construction be present, resource, which exists, to be wasted, it is difficult to ensures that support can By etc. various problems.
Utility model content
The purpose of this utility model is the deficiency for existing construction technology, there is provided a kind of oblique inner support of shaped steel cement earth pile Foundation pit enclosure structure.The structure is given full play to using the characteristic between each containment system, can effectively solve underground engineering construction work The problems such as phase is long, safety reliability is low, building enclosure is unstable.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that:
A kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile, including outside SMW(Soil Mixing Wall, cement Native churned pile wall)Engineering method stake, inner side SMW engineering method stakes, concrete purlin, reinforced concrete cover plate, oblique inner support slip casting steel pipe system, concrete power transmission Band, bottom plate, steel plate for sealing water, concrete bed course, reinforced bed;The top of the outside SMW engineering methods stake and inner side SMW engineering method stakes passes through steel Muscle concrete cover plate is fixedly connected with concrete purlin, the tiltedly upper end of inner support slip casting steel pipe system and the upper end one of inner side SMW engineering method stakes It is attached with pouring in concrete purlin, the other end of the tiltedly inner support slip casting steel pipe system stirs body by spray through bottom plate and anchored into In soil;Outer wall of basement is together poured when pouring bottom plate, and one of steel plate for sealing water is set on outer wall of basement, in bottom plate and inner side Concrete load transfering strip is provided between SMW engineering method stakes, the bottom of bottom plate is provided with concrete bed course, in bottom plate and steel-pipe pile join domain Concrete bed course under set up one layer of reinforced bed.
The structure of the outside SMW engineering methods stake and inner side SMW engineering method stakes includes triaxial cement mixing pile and H profile steel, institute H profile steel fixation disposed within when triaxial cement mixing pile is constructed is stated, forms SMW engineering method stakes.
The tiltedly inner support slip casting steel pipe system includes steel-pipe pile, and body, seal ring, injected hole, end bar dowel, overcoat are stirred in spray Steel pipe, bottom bar dowel, the tiltedly inner support slip casting steel pipe system are constructed after the completion of SMW engineering method stakes, the steel-pipe pile bag Section steel-pipe pile and lower section steel-pipe pile are included, the upper section steel-pipe pile by outer steel pipe and carries out welding company with lower section steel-pipe pile Connect, steel-pipe pile rear-inclined hole to be drilled of completing anchors into underground, and steel-pipe pile bottom sets injected hole, and forming spray after injection cement mortar stirs body Anchor connection is carried out with the soil body, quincunx end bar dowel is welded in steel-pipe pile upper end at an angle upwards, with inner side SMW works Method stake together pours to be attached in concrete purlin, and steel-pipe pile bottom welds the bottom bar dowel of quincuncial arrangement along surrounding, is increased Friction area greatly between the soil body, the bottom plate and steel-pipe pile junction welding seal ring, the tiltedly inner support slip casting steel pipe system System cuts off bottom plate above section inclined support structure after the completion of bottom plate and concrete power transmission belt construction.
Compared with prior art, the utility model has the following advantages:
The utility model Design of Retaining Structure is rationally effective, and safety coefficient is high;Rationally using SMW engineering method stake anti-bending strengths with Soil cement shaped steel compressive property is combined, and goes along with sb. to guard him that supporting construction connection is reliable effective, is improved whole between each system of foundation pit enclosure Body, part resource recoverable, meet green construction requirement.The similar nail Construction technique of the oblique inner support construction of steel pipe, construction Simplicity, underground staged construction cycle are short, make full use of each system self-characteristic, and the phase can be effectively prevented on big bottom plate after construction The occurrence of floating.
Brief description of the drawings
Fig. 1 is the example of the utility model structural representation.
Fig. 2 is steel-pipe pile schematic diagram.
Fig. 3 is steel-pipe pile overcoat connection diagram.
Fig. 4 is bottom plate and steel-pipe pile junction seal ring schematic diagram.
Fig. 5 is construction process of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings, specific implementation case of the present utility model is described further.
As shown in figure 1, a kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile, including outside SMW engineering methods stake 1, inner side SMW engineering methods stake 2, concrete purlin 5, reinforced concrete cover plate 6, oblique inner support slip casting steel pipe system 7, concrete load transfering strip 9, bottom plate 10, steel plate for sealing water 11, concrete bed course 12, reinforced bed 13;The top of the outside SMW engineering methods stake 1 and inner side SMW engineering methods stake 2 passes through reinforced concrete cover plate 6 are fixedly connected with concrete purlin 5, and the tiltedly upper end of inner support slip casting steel pipe system 7 and the upper end of inner side SMW engineering methods stake 2 are together poured Build and be attached in concrete purlin 5, the other end of the tiltedly inner support slip casting steel pipe system 7 stirs the anchor of body 8 through bottom plate 10 by spray In burying;300mm high outer wall of basement is together poured when pouring bottom plate 10, and one of steel plate for sealing water is set on outer wall of basement 11, concrete load transfering strip 9 is provided between bottom plate 10 and inner side SMW engineering methods stake 2, the bottom of bottom plate 10 is provided with concrete bed course 12, One layer of reinforced bed 13 is set up under concrete bed course 12 in bottom plate 10 and the join domain of steel-pipe pile 17, it is oblique to resist the top of bottom plate 10 To stress caused by bottom plate 10 after inner support dismounting.
The structure of the outside SMW engineering methods stake 1 and inner side SMW engineering methods stake 2 includes triaxial cement mixing pile 4 and H profile steel 3, the H profile steel 3 fixation disposed within when triaxial cement mixing pile 4 is constructed, form SMW engineering method stakes.
As shown in Figures 2 to 4, the tiltedly inner support slip casting steel pipe system 7 includes steel-pipe pile 17, sprays and stirs body 8, seal ring 15, Injected hole 16, end bar dowel 14, outer steel pipe 18, bottom bar dowel 19, the tiltedly inner support slip casting steel pipe system 7 is in SMW works Constructed after the completion of method stake, the steel-pipe pile 17 includes upper section steel-pipe pile 17-1 and lower section steel-pipe pile 17-2, the upper section steel Pile tube 17-1 by outer steel pipe 18 and is welded to connect with lower section steel-pipe pile 17-2, the completion rear-inclined hole to be drilled of steel-pipe pile 17 Underground is anchored into, the bottom of steel-pipe pile 17 sets injected hole 16, and spray is formed after injection cement mortar and stirs body 8 and soil body progress anchor connection, Quincunx end bar dowel 14 is welded in the upper end of steel-pipe pile 17 at an angle upwards, with inner side SMW engineering methods stake 2 together pour in Be attached in concrete purlin 5, the bottom of steel-pipe pile 17 along surrounding weld quincuncial arrangement bottom bar dowel 19, increase with the soil body it Between friction area, the bottom plate 10 and the junction of steel-pipe pile 17 welding seal ring 15, the tiltedly inner support slip casting steel pipe system 7 exists Bottom plate 10 and concrete load transfering strip 9 cut off the above section inclined support structure of bottom plate 10 after the completion of constructing.
As shown in figure 5, the construction process for the oblique inner support building enclosure of the utility model shaped steel cement earth pile.The axle of outside three stirs Mix stake and form the double SMW engineering methods stake in interior outside with following insertion H profile steel 3 while the construction of 1 inner side three axes agitating pile 2 closely, and because of ground Carry out to suiting measures to different conditions the drilling construction of steel-pipe pile 17.Processed steel-pipe pile 17 is can be inserted into after the completion of hole to be drilled and is noted from end Slurry, form spray and stir body 8, concrete purlin 5 is constructed with reinforced concrete cover plate 6 after the completion of steel-pipe pile 17, by steel-pipe pile 17 and double SMW works Method stake connects to form entirety.Building enclosure can disposably cut the earth to design bottom absolute altitude after reaching age, be Underground Construction Working face is provided, the i.e. dismountable bottom plate after basement bottom board 10 and the construction of concrete load transfering strip 9 are completed and reach design strength Top steel-pipe pile 17, condition is provided for Underground Construction.

Claims (3)

1. a kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile, it is characterised in that including outside SMW engineering method stakes(1), inner side SMW engineering method stakes(2), concrete purlin(5), reinforced concrete cover plate(6), oblique inner support slip casting steel pipe system(7), concrete load transfering strip(9), bottom plate (10), steel plate for sealing water(11), concrete bed course(12), reinforced bed(13);The outside SMW engineering method stakes(1)With inner side SMW engineering method stakes (2)Top pass through reinforced concrete cover plate(6)With concrete purlin(5)It is fixedly connected, the tiltedly inner support slip casting steel pipe system(7)Upper end With inner side SMW engineering method stakes(2)Upper end together pour in concrete purlin(5)Inside it is attached, the tiltedly inner support slip casting steel pipe system (7)The other end pass through bottom plate(10)Body is stirred by spray(8)Anchor into soil;Pour bottom plate(10)Shi Yitong is poured outside basement Wall, and one of steel plate for sealing water is set on outer wall of basement(11), in bottom plate(10)With inner side SMW engineering method stakes(2)Between be provided with Concrete load transfering strip(9), in bottom plate(10)Bottom be provided with concrete bed course(12), in bottom plate(10)With steel-pipe pile(17)In join domain Concrete bed course(12)Under set up one layer of reinforced bed(13).
2. the oblique inner support foundation pit enclosure structure of shaped steel cement earth pile according to claim 1, it is characterised in that the outside SMW engineering method stakes(1)With inner side SMW engineering method stakes(2)Structure include triaxial cement mixing pile(4)And H profile steel(3), the H types Steel(3)In triaxial cement mixing pile(4)Fixation disposed within during construction, form SMW engineering method stakes.
3. the oblique inner support foundation pit enclosure structure of shaped steel cement earth pile according to claim 1, it is characterised in that the oblique inner support Slip casting steel pipe system(7)Including steel-pipe pile(17), spray and stir body(8), seal ring(15), injected hole(16), end bar dowel(14), Outer steel pipe(18), bottom bar dowel(19), the tiltedly inner support slip casting steel pipe system(7)Applied after the completion of SMW engineering method stakes Work, the steel-pipe pile(17)Including upper section steel-pipe pile(17-1)With lower section steel-pipe pile(17-2), the upper section steel-pipe pile(17-1) With lower section steel-pipe pile(17-2)Pass through outer steel pipe(18)And it is welded to connect, steel-pipe pile(17)Completion rear-inclined anchor hole to be drilled Enter underground, steel-pipe pile(17)Bottom sets injected hole(16), inject cement mortar after formed spray stir body(8)Anchoring company is carried out with the soil body Connect, steel-pipe pile(17)Weld quincunx end bar dowel at an angle upwards in upper end(14), with inner side SMW engineering method stakes(2) Together pour in concrete purlin(5)Inside it is attached, steel-pipe pile(17)The bottom bar dowel of quincuncial arrangement is welded along surrounding in bottom (19), the friction area between increase and the soil body, the bottom plate(10)With steel-pipe pile(17)Weld seal ring in junction(15), institute State oblique inner support slip casting steel pipe system(7)In bottom plate(10)With concrete load transfering strip(9)Bottom plate is cut off after the completion of construction(10)Above section Inclined support structure.
CN201720758855.XU 2017-06-28 2017-06-28 A kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile Expired - Fee Related CN206971232U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109667273A (en) * 2018-12-22 2019-04-23 广州市天作建筑规划设计有限公司 A kind of construction method of deep foundation pit supporting structure
CN110055981A (en) * 2019-04-18 2019-07-26 中铁第四勘察设计院集团有限公司 Supporting and retaining system unit, retaining structure and the construction method on landslide
CN110424406A (en) * 2019-08-07 2019-11-08 上海市机械施工集团有限公司 A kind of oblique construction method for throwing support bridle iron and tiltedly throw support bridle iron
CN111501772A (en) * 2020-04-10 2020-08-07 深圳市地质环境研究院有限公司 Construction method for supporting and protecting piles by combining grouting with steel pipes in SMW (soil mixing wall) construction method
CN113529739A (en) * 2021-07-28 2021-10-22 王冰璇 Coaxial expansion body assembly type support shaftless rotary sprayer and corresponding construction method
CN114108694A (en) * 2021-11-11 2022-03-01 中冶集团武汉勘察研究院有限公司 Micro-disturbance anti-floating underground cylindrical structure and construction method thereof
CN115110540A (en) * 2022-07-27 2022-09-27 中建铁路投资建设集团有限公司 SMW worker method stake and stand stake combination supporting construction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109667273A (en) * 2018-12-22 2019-04-23 广州市天作建筑规划设计有限公司 A kind of construction method of deep foundation pit supporting structure
CN110055981A (en) * 2019-04-18 2019-07-26 中铁第四勘察设计院集团有限公司 Supporting and retaining system unit, retaining structure and the construction method on landslide
CN110424406A (en) * 2019-08-07 2019-11-08 上海市机械施工集团有限公司 A kind of oblique construction method for throwing support bridle iron and tiltedly throw support bridle iron
CN111501772A (en) * 2020-04-10 2020-08-07 深圳市地质环境研究院有限公司 Construction method for supporting and protecting piles by combining grouting with steel pipes in SMW (soil mixing wall) construction method
CN113529739A (en) * 2021-07-28 2021-10-22 王冰璇 Coaxial expansion body assembly type support shaftless rotary sprayer and corresponding construction method
CN114108694A (en) * 2021-11-11 2022-03-01 中冶集团武汉勘察研究院有限公司 Micro-disturbance anti-floating underground cylindrical structure and construction method thereof
CN115110540A (en) * 2022-07-27 2022-09-27 中建铁路投资建设集团有限公司 SMW worker method stake and stand stake combination supporting construction

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20180206

Termination date: 20180628