CN204898684U - Super dark excavation supporting system - Google Patents
Super dark excavation supporting system Download PDFInfo
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- CN204898684U CN204898684U CN201520598823.9U CN201520598823U CN204898684U CN 204898684 U CN204898684 U CN 204898684U CN 201520598823 U CN201520598823 U CN 201520598823U CN 204898684 U CN204898684 U CN 204898684U
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Abstract
The utility model relates to a super dark excavation supporting system, its characterized in that: stir a stagnant water curtain deeply including single triaxial, drilling bored concrete pile and steel stand, single triaxial stirs a stagnant water curtain deeply and is less than nature ground and goes along with sb. To guard him all around the setting along the foundation ditch, a plurality of drilling bored concrete piles interval in proper order set up in single triaxial stirs the inboard foundation ditch of a stagnant water curtain deeply, a plurality of steel stands set up in the foundation ditch of drilling bored concrete pile inboard, a plurality of drilling bored concrete pile tops are drawn through reinforced concrete guan liang in proper order and are connect, each high position inboard of secret floor of non - of a plurality of drilling bored concrete piles sets up encloses the purlin along foundation ditch reinforced concrete all around, the reinforced concrete encloses to enclose in the purlin and encloses the purlin roof beam and draw and connect through a plurality of reinforced concretes that support on the steel stand, the reinforced concrete encloses purlin roof beam and reinforced concrete and encloses to support in the multiunit reinforced concrete between the purlin and be latticed drawing and connect, plain concrete is tamped to inside setting the in bottom of a plurality of drilling bored concrete piles, tamp and lay the bottom plate in the plain concrete on the foundation ditch that encloses, the post -cast strip of propping is traded in area more than setting up together on the bottom plate.
Description
Technical field
The utility model relates to a kind of foundation pit support system, is a kind of ultra-deep foundation pit support system specifically.
Background technology
Foundation ditch belongs to temporary work, and its effect is to provide a space, makes the operation of building by laying bricks or stones on basis be able to carry out according to the position specified by design.For ensureing the safety of Underground Construction and foundation ditch surrounding enviroment, usually need a pattern foundation pit supporting structure measure gear being adopted usually to foundation pit side-wall and surrounding enviroment, reinforces.
Along with the development of economic construction, the engineering of the large scale of construction such as super highrise building and City complex building also occurs more and more, these large scale of construction engineerings not only area of overground part and highly larger, the area of under ground portion and the degree of depth are general also all larger, and these large scale of construction engineering in generals all can be located in the bustling location in city, Floorplanning land used is at full stretch, surrounding enviroment also can more complicated, very large impact can be caused thus to the construction of underground construction, its foundation depth far surpasses 10 meters, belong to ultra-deep foundation pit, foundation ditch is comparatively complicated, its excavation and supporting directly have influence on engineering construction.Traditional deep foundation pit support is mostly the foundation ditch of 5 meters, and supporting deep pit digging and support technology cannot meet the demand of deep foundation ditch.
Summary of the invention
Cannot meet the problem of ultra-deep foundation pit demand for deep foundation pit support of the prior art, it is simple, firm that the utility model provides a kind of structure, and construct convenient, supporting performance is high, is convenient to the ultra-deep foundation pit support system of deep pit monitor excavation.
The technical solution adopted in the utility model is: a kind of ultra-deep foundation pit support system, comprise single tri-axes deep mixing pile water stopping curtain, bored pile and steel post, single tri-axes deep mixing pile water stopping curtain goes along with sb. to guard him setting lower than natural ground along foundation ditch surrounding, multiple bored pile is arranged at intervals in the foundation ditch inside single tri-axes deep mixing pile water stopping curtain successively, multiple steel post is arranged in the foundation ditch inside bored pile, multiple bored pile top sockets through steel bar concrete Guan Liang successively, inside each underground storey floors height and position non-of multiple bored pile, the steel bar concrete arranged along foundation ditch surrounding encloses purlin, steel bar concrete encloses in purlin to enclose and is supported in steel bar concrete on steel post and encloses purlin beam through multiple and socket, it is latticed socketing that steel bar concrete encloses that purlin beam and steel bar concrete to enclose between purlin through organizing steel bar concrete inner support more, the bottom of multiple bored pile is inwardly arranged tamps plain concrete, tamp on the foundation ditch that encloses in plain concrete and lay base plate, base plate is arranged the ater-casting of band support replacement above together.
Further, between base plate and foundation ditch, bed course is set.
Further, single tri-axes deep mixing pile water stopping curtain top is stretched in single tri-axes deep mixing pile water stopping curtain through steel pipe socket coping.
Further, the stake in bored pile is long for being arranged alternately along foundation ditch inward-outward direction one length two is short.
Further, uniform inside each underground storey floors height and position of multiple bored pile multiple support replacement block be inlaid on bored pile is set, support replacement block level each underground storey floors thickness corresponding and underground outer wall of floor in vertical support foundation ditch.
Further, support replacement block setting-in bored pile at least completely.
Further, steel post is angle steel lattice column, and steel post bottom is concrete column stake.
Further, the natural ground outside foundation ditch single tri-axes deep mixing pile water stopping curtain is arranged the catchwater along foundation ditch surrounding, the multiple dewatering wells arranged inside foundation ditch bored pile.
Again further, outside single tri-axes deep mixing pile water stopping curtain, be provided with three axles element stakes of the cold seam of corresponding construction, three axles element stakes with overlap with cold seam of constructing centrosymmetric tri-axes deep mixing stake, overlap thickness and be not less than 1/5 of tri-axes deep mixing stake diameter.
Ultra-deep foundation pit supporting method step:
(1) by design of foundation pit all around unwrapping wire, a complete set of complex mixing type of job-hopping formula diplopore is constructed single tri-axes deep mixing pile water stopping curtain;
(2) enclose in single tri-axes deep mixing pile water stopping curtain interval construction multiple along foundation ditch all around uniform intervals arrangement bored pile, bored pile design strength is underwater concrete C35, and the stake in bored pile is long for being arranged alternately along foundation ditch inward-outward direction one length two is short;
(3) bore multiple leghole in foundation ditch, establish steel post in leghole, concreting stand column pile under steel post foundation ditch;
(4) the first floor earthwork in excavation pit, encloses the multiple dewatering well of construction, the pre-precipitation of dewatering well in bored pile; Bored pile top construction reinforced bar concrete Guan Liang sockets; On foundation ditch face after first floor soil excavation, construction reinforced bar concrete encloses purlin, steel bar concrete encloses purlin and connects bored pile, steel bar concrete encloses the steel bar concrete of Construction Support on steel post in purlin and encloses purlin beam, steel bar concrete encloses purlin and steel bar concrete and encloses latticed steel bar concrete inner support of constructing between purlin beam and socket and be integrated, and supports maintenance;
(5) second layer earthwork in excavation pit, on foundation ditch face after second layer soil excavation, construction reinforced bar concrete encloses purlin, steel bar concrete encloses purlin and connects bored pile, steel bar concrete encloses the steel bar concrete of Construction Support on steel post in purlin and encloses purlin beam, steel bar concrete encloses purlin and steel bar concrete and encloses latticed steel bar concrete inner support of constructing between purlin beam and socket and be integrated, and supports maintenance; Dewatering well precipitation maintains simultaneously;
(6) subsequent multi-layer soil excavation is completed by step (5), and construction supporting structure on foundation ditch face after every layer of soil excavation, until the foundation ditch bottom, foundation ditch bottom construction cushion coat and corner element concrete tamp, base plate that bed course is constructed, waterproof slab;
(7) construction foundation pit outer wall of basement; Remove construction supporting structure on the foundation ditch face after every layer of soil excavation from the bottom to top, the each storey floors in room under construction ground, interval in dismounting, and support replacement block of constructing between the exterior wall and bored pile of storey floors height and position, support replacement block is inlaid on bored pile;
(8) external wall waterproof, backfill; Foundation ditch basement structure binds.
After adopting technique scheme, the invention has the beneficial effects as follows: a complete set of complex mixing type construction of tri-axes deep mixing stake job-hopping formula diplopore, can construction quality be guaranteed, ensure the continuity of water-stop curtain and the construction quality of joint area, coordinate peripheral catchwater to play sealing effect; When during construction, cold seam appears in water-stop curtain, corresponding tri-axes deep mixing stake periphery takes to stir in cold seam outside benefit, overlap plain stake, guarantees structural strength and the safety of tri-axes deep mixing stake; The long setting of stake that bored pile adopts a length two short, effectively takes into account construction investment cost and supporting capacity, improves usage safety performance; Adopt the set of catchwater publicly price-reduction water and dewatering well deep-well precipitation, guarantee the construction safety of the soil body; Foundation ditch is from top to bottom constructed by the excavation number of plies, first cut the earth, then construction reinforced bar concrete encloses purlin, steel bar concrete encloses purlin beam and latticed steel bar concrete inner support, the support of match-drill castinplace pile and steel post, successively excavation and design of its support, improves the safety of excavation pit; Supporting construction is to the foundation ditch bottom, and plain concrete tamps base plate and bored pile corner corner, and raising base plate and bored pile syndeton are stablized further; Construction foundation pit outer wall of basement makes, and adopts and changes block supports every layer storey floors and bored pile, guarantees vertical, the stable construction of exterior wall.
Accompanying drawing explanation
Fig. 1 is the top view of the utility model system;
Fig. 2 is the sectional view of the utility model system.
In figure: foundation ditch 1, catchwater 2, tri-axes deep mixing pile water stopping curtain 3, bored pile 4, steel post 5, steel bar concrete hat beam 6, steel bar concrete encloses purlin 7, and steel bar concrete encloses purlin beam 8, steel bar concrete inner support 9, base plate 10, bed course 11, plain concrete tamps 12, dewatering well 13, exterior wall 14, support replacement block 15, coping 16, underground storey floors 17.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1, shown in 2: a kind of ultra-deep foundation pit support system comprises single tri-axes deep mixing pile water stopping curtain 3, bored pile 4 and steel post 5, single tri-axes deep mixing pile water stopping curtain 3 goes along with sb. to guard him setting lower than natural ground along foundation ditch 1 surrounding, single tri-axes deep mixing pile water stopping curtain 3 top is stretched in single tri-axes deep mixing pile water stopping curtain through steel pipe and sockets coping 16, multiple bored pile 4 is arranged at intervals in the foundation ditch 1 inside single tri-axes deep mixing pile water stopping curtain 3 successively, stake in bored pile 4 is long for being arranged alternately along foundation ditch inward-outward direction one length two is short, multiple steel post 5 is arranged in the foundation ditch 1 inside bored pile 4, steel post is angle steel lattice column, steel post bottom is concrete column stake, natural ground outside single tri-axes deep mixing pile water stopping curtain 3 is arranged along the catchwater 2 of foundation ditch 1 surrounding and the multiple dewatering wells 13 along the setting of foundation ditch 1 surrounding uniform intervals.Multiple bored pile 4 top sockets through steel bar concrete hat beam 6 successively, inside each underground storey floors height and position non-of multiple bored pile 4, the steel bar concrete arranged along foundation ditch 1 surrounding encloses purlin 7, steel bar concrete encloses in purlin 7 to enclose and is supported in steel bar concrete on steel post 5 and encloses purlin beam 8 through multiple and socket, it is latticed socketing that steel bar concrete encloses that purlin beam 8 and steel bar concrete to enclose between purlin 7 through how organize steel bar concrete inner support 9, the bottom of multiple bored pile 4 is inwardly arranged tamps plain concrete 12, tamp on the foundation ditch that encloses in plain concrete 12 and lay bed course 11 and base plate 10, base plate is arranged the ater-casting of band support replacement above together.
Uniform inside each underground storey floors 17 height and position of multiple bored pile 4 multiple support replacement block 15 be inlaid on bored pile 4 is set, support replacement block level each underground storey floors thickness corresponding and underground outer wall of floor in vertical support foundation ditch, support replacement block is setting-in bored pile at least completely.
Ultra-deep foundation pit supporting method step of the present invention:
(1) by design of foundation pit all around unwrapping wire, a complete set of complex mixing type of job-hopping formula diplopore is constructed single tri-axes deep mixing pile water stopping curtain, catchwater 2 of constructing in the natural ground outside single tri-axes deep mixing pile water stopping curtain;
(2) enclose in single tri-axes deep mixing pile water stopping curtain interval construction multiple along foundation ditch all around uniform intervals arrangement bored pile, bored pile design strength is underwater concrete C35, and the stake in bored pile is long for being arranged alternately along foundation ditch inward-outward direction one length two is short;
(3) bore multiple leghole in foundation ditch, establish steel post in leghole, concreting stand column pile under steel post foundation ditch;
(4) the first floor earthwork in excavation pit, encloses the multiple dewatering well 13 of construction, the pre-precipitation of dewatering well in bored pile; Bored pile top construction reinforced bar concrete Guan Liang sockets; On foundation ditch face after first floor soil excavation, construction reinforced bar concrete encloses purlin, steel bar concrete encloses purlin and connects bored pile, steel bar concrete encloses the steel bar concrete of Construction Support on steel post in purlin and encloses purlin beam, steel bar concrete encloses purlin and steel bar concrete and encloses latticed steel bar concrete inner support of constructing between purlin beam and socket and be integrated, and supports maintenance;
(5) second layer earthwork in excavation pit, on foundation ditch face after second layer soil excavation, construction reinforced bar concrete encloses purlin, steel bar concrete encloses purlin and connects bored pile, steel bar concrete encloses the steel bar concrete of Construction Support on steel post in purlin and encloses purlin beam, steel bar concrete encloses purlin and steel bar concrete and encloses latticed steel bar concrete inner support of constructing between purlin beam and socket and be integrated, and supports maintenance; Dewatering well precipitation maintains simultaneously;
(6) subsequent multi-layer soil excavation is completed by step (5), and construction supporting structure on foundation ditch face after every layer of soil excavation, until the foundation ditch bottom, foundation ditch bottom construction cushion coat and corner element concrete tamp, base plate that bed course is constructed, waterproof slab;
(7) construction foundation pit outer wall of basement; Remove construction supporting structure on the foundation ditch face after every layer of soil excavation from the bottom to top, the each storey floors in room under construction ground, interval in dismounting, and support replacement block of constructing between the exterior wall and bored pile of storey floors height and position, support replacement block is inlaid on bored pile;
External wall waterproof, backfill; Foundation ditch basement structure binds.
Claims (9)
1. a ultra-deep foundation pit support system, it is characterized in that: comprise single tri-axes deep mixing pile water stopping curtain, bored pile and steel post, single tri-axes deep mixing pile water stopping curtain goes along with sb. to guard him setting lower than natural ground along foundation ditch surrounding, multiple bored pile is arranged at intervals in the foundation ditch inside single tri-axes deep mixing pile water stopping curtain successively, multiple steel post is arranged in the foundation ditch inside bored pile, multiple bored pile top sockets through steel bar concrete Guan Liang successively, inside each underground storey floors height and position non-of multiple bored pile, the steel bar concrete arranged along foundation ditch surrounding encloses purlin, steel bar concrete encloses in purlin to enclose and is supported in steel bar concrete on steel post and encloses purlin beam through multiple and socket, it is latticed socketing that steel bar concrete encloses that purlin beam and steel bar concrete to enclose between purlin through organizing steel bar concrete inner support more, the bottom of multiple bored pile is inwardly arranged tamps plain concrete, tamp on the foundation ditch that encloses in plain concrete and lay base plate, base plate is arranged the ater-casting of band support replacement above together.
2. a kind of ultra-deep foundation pit support system according to claim 1, is characterized in that: arrange bed course between base plate and foundation ditch.
3. a kind of ultra-deep foundation pit support system according to claim 1, is characterized in that: single tri-axes deep mixing pile water stopping curtain top is stretched in single tri-axes deep mixing pile water stopping curtain through steel pipe and sockets coping.
4. a kind of ultra-deep foundation pit support system according to claim 1, is characterized in that: the stake in bored pile is long for being arranged alternately along foundation ditch inward-outward direction one length two is short.
5. a kind of ultra-deep foundation pit support system according to claim 1, it is characterized in that: uniform inside each underground storey floors height and position of multiple bored pile multiple support replacement block be inlaid on bored pile is set, support replacement block level each underground storey floors thickness corresponding and underground outer wall of floor in vertical support foundation ditch.
6. a kind of ultra-deep foundation pit support system according to claim 5, is characterized in that: support replacement block is setting-in bored pile at least completely.
7. a kind of ultra-deep foundation pit support system according to claim 1, it is characterized in that: steel post is angle steel lattice column, steel post bottom is concrete column stake.
8. a kind of ultra-deep foundation pit support system according to claim 1, is characterized in that: the natural ground outside foundation ditch single tri-axes deep mixing pile water stopping curtain is arranged the catchwater along foundation ditch surrounding, the multiple dewatering wells arranged inside foundation ditch bored pile.
9. a kind of ultra-deep foundation pit support system according to claim 1, it is characterized in that: the three axle element stakes being provided with the cold seam of corresponding construction outside single tri-axes deep mixing pile water stopping curtain, three axles element stakes with overlap with cold seam of constructing centrosymmetric tri-axes deep mixing stake, overlap thickness be not less than 1/5 of tri-axes deep mixing stake diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520598823.9U CN204898684U (en) | 2015-08-11 | 2015-08-11 | Super dark excavation supporting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520598823.9U CN204898684U (en) | 2015-08-11 | 2015-08-11 | Super dark excavation supporting system |
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| CN204898684U true CN204898684U (en) | 2015-12-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013173A (en) * | 2016-07-15 | 2016-10-12 | 中铁十七局集团第三工程有限公司 | Subway station construction body envelop enclosing structure |
| CN107178088A (en) * | 2017-04-18 | 2017-09-19 | 武汉志和岩土工程有限公司 | A kind of basement waterproofing foundation pit structure and its construction method |
| CN107780421A (en) * | 2017-10-23 | 2018-03-09 | 中国建筑第八工程局有限公司 | Storage pond cofferdam base pit dewatering structure and its construction method in river course |
-
2015
- 2015-08-11 CN CN201520598823.9U patent/CN204898684U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013173A (en) * | 2016-07-15 | 2016-10-12 | 中铁十七局集团第三工程有限公司 | Subway station construction body envelop enclosing structure |
| CN107178088A (en) * | 2017-04-18 | 2017-09-19 | 武汉志和岩土工程有限公司 | A kind of basement waterproofing foundation pit structure and its construction method |
| CN107780421A (en) * | 2017-10-23 | 2018-03-09 | 中国建筑第八工程局有限公司 | Storage pond cofferdam base pit dewatering structure and its construction method in river course |
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Address after: No. 87, Jinchuan Road, Taixing City, Taizhou, Jiangsu Patentee after: Taixing Construction Group Co. Ltd. Address before: 225400 Daqing East Road, Taixing City, Taizhou, Jiangsu Province, No. 21 Patentee before: Taixing First Construction Installation Co., Ltd. |