CN201901876U - Steel sheet pile inversely-constructed foundation ditch supporting structure - Google Patents
Steel sheet pile inversely-constructed foundation ditch supporting structure Download PDFInfo
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- CN201901876U CN201901876U CN2010206768426U CN201020676842U CN201901876U CN 201901876 U CN201901876 U CN 201901876U CN 2010206768426 U CN2010206768426 U CN 2010206768426U CN 201020676842 U CN201020676842 U CN 201020676842U CN 201901876 U CN201901876 U CN 201901876U
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Abstract
A steel sheet pile inversely-constructed foundation ditch supporting structure relates to a steel sheet pile inversely-constructed foundation ditch supporting method, and belongs to the technical field of geotechnical engineering. The foundation ditch supporting structure comprises a steel sheet pile which can be simultaneously used for the foundation pit supporting structure and a waterproof curtain, wherein the steel sheet pile is taken as a foundation pit supporting wall, one end of the steel sheet pile is arranged as a horizontal bracing structure of the foundation pit to support basement beam slabs and a foundation pit baseplate. The foundation ditch supporting structure achieves the purposes of wide application range, obvious economic benefit and social benefit, economic engineering cost, strong horizontal bracing rigidity, small foundation pit deformation and short total time limit of engineering construction.
Description
Technical field
The utility model relates to a kind of steel sheet pile contrary sequence method foundation pit supporting construction, belongs to the geotechnical engineering technical field.
Background technology
" contrary sequence method " technology is for the conventional construction method " along the practice " with respect to base pit engineering, its basic principle is to utilize the foundation ditch enclosure wall and the vertical bearing system in interim column conduct " against the doing " stage in the hole all around, utilize of the interior support of the beam slab of basement self structure layer as bracing of foundation pit, with ± 0 layer (also can be B1) be initial surface, from top to bottom carry out " the contrary work " construction of underground structure, from bottom to top carry out simultaneously the construction of upper body structure, form top, the parallel three-dimensional operation of substructure.For making things convenient for soil excavation and vertical transport, can pour into a mould the girt strip part concrete of underground superstructure earlier, form in the horizontal pane posture and support, floorslab concrete is treated to pour into a mould after sole plate is finished again.This method is generally only at underground employing " contrary do ", waits to finish the superstructure of constructing again behind the under ground portion, so be called " semi-inverse method " or " open type contrary sequence method ".
When deep foundation ditch adopted " contrary sequence method " construction, enclosure wall generally adopted diaphragm wall (structure outer of double as basement, i.e. two walls unification) usually or bored pile+stir deeply pile water stopping curtain.Diaphragm wall is to adopt to utilize various trench machines, by means of the retaining wall effect of mud, digs out narrow and dark groove underground, and pour into a mould suitable material within it and form have antiseepage (water) together, the continuous underground wall body of retaining soil and weight-bearing function.Diaphragm wall has that when construction vibration is little, noise is low, and body of wall rigidity is big, barrier performance good, can press close to construction, be applicable to advantage such as multiple foundation condition, is pattern foundation pit supporting structure form common in the reverse construction.But also there is certain shortcoming in diaphragm wall: as difficulty of the clear end, and the joint easy to leak, when municipal construction, waste mud ground processing is cumbersome, needs heavy construction equipment, construction process requirement height, the time is long, cost is high.
Summary of the invention
The utility model purpose provides a kind of applied widely, and economic benefit and obvious social benefit are saved engineering cost, and horizontal support rigidity is big, and foundation pit deformation is little, shortens the steel sheet pile contrary sequence method foundation pit supporting construction of total duration of engineering construction.
A kind of steel sheet pile contrary sequence method foundation pit supporting construction comprises the steel sheet pile that can be used for foundation pit supporting construction and water-stop curtain simultaneously, and steel sheet pile is as the bracing of foundation pit wall; One side of steel sheet pile is arranged as foundation ditch horizontal support structure basement beam slab and base plate of foundation pit.
Basement beam slab of the present utility model is base plate, underground two layers of beam slab, B1 beam slab, the first floor beam slab of arranging successively from bottom to top.
Supporting method based on steel sheet pile contrary sequence method foundation pit supporting construction of the present utility model comprises the steps:
The first step: according to site condition and computational analysis, determine steel sheet pile supporting and protection structure, comprise that the pattern of supporting and protection structure and length, stand column pile arrange;
Second step: steel sheet pile, stand column pile and engineering piles around the construction;
The 3rd step: periphery stays soil, foundation ditch middle part excavation first floor soil;
The 4th step: carry out the construction of underground first floor beam slab;
The 5th step: excavation second layer soil, and construction B1 beam slab, the ground floor beam slab of constructing simultaneously;
The 6th step: excavate the 3rd layer of soil, and the underground two layers of beam slab of constructing, the F2/B2 beam slab of constructing simultaneously;
The 7th step: foundation ditch middle part and periphery excavate on earth and build base plate, and construction simultaneously is the tri-layer beams plate on the ground; Frame column and other underground structure of construction stand column pile periphery are finished the construction of underground structure;
The 8th step: backfill, extract steel sheet pile.
The utility model adopts technique scheme, and compared with prior art have following advantage: steel sheet pile can be used as supporting and protection structure, also can be used as water-stop curtain simultaneously, is applicable to weak soil and various soil condition.Replace horizontal support with superstructure, solve the difficult problem of bracing of foundation pit support arrangement, horizontal support rigidity is big, and foundation pit deformation is little, can reduce the influence of deep foundation pit construction to adjacent building and underground installation.Shorten total duration of engineering construction, generally speaking, the construction of foundation ditch and basement structure does not account for the leading duration, can shorten 4 months to 6 months total duration.Economic benefit and obvious social benefit, owing to replace support wall with outer wall of basement, basement superstructure and support unification can be saved engineering cost 10%-30%.
Description of drawings
Fig. 1 is the structural representation of a kind of suspension device of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated:
As shown in Figure 1, a kind of steel sheet pile contrary sequence method foundation pit supporting construction comprises the steel sheet pile 12 that can be used for foundation pit supporting construction and water-stop curtain simultaneously, and steel sheet pile 12 is as the bracing of foundation pit wall; One side of steel sheet pile 12 is arranged as foundation ditch horizontal support structure basement beam slab and base plate of foundation pit 2.
As shown in Figure 1, basement beam slab of the present utility model is base plate 3, underground two layers of beam slab 4, B1 beam slab 5, the first floor beam slab of arranging successively from bottom to top 6.
Supporting method based on steel sheet pile contrary sequence method foundation pit supporting construction of the present utility model comprises the steps:
The first step: according to site condition and computational analysis, determine steel sheet pile supporting and protection structure, comprise that pattern, length and the stand column pile of supporting and protection structure arranged;
Second step: steel sheet pile 12, stand column pile 10 and engineering piles around the construction;
The 3rd step: periphery stays soil, foundation ditch middle part excavation first floor soil;
The 4th step: carry out the construction of underground first floor beam slab 6;
The 5th step: excavation second layer soil, and construction B1 beam slab 5, the ground floor beam slab 7 of constructing simultaneously;
The 6th step: excavate the 3rd layer of soil, and the underground two layers of beam slab 4 of constructing, the F2/B2 beam slab 8 of constructing simultaneously;
The 7th step: foundation ditch middle part and periphery excavate on earth and build base plate 3, and construction simultaneously is tri-layer beams plate 9 on the ground; Frame column 11 and other underground structure of construction stand column pile 10 peripheries are finished the construction of underground structure;
The 8th step: backfill, extract steel sheet pile 12.
As shown in Figure 1, supporting and protection structure of the present utility model comprises soil layer 1, the foundation ditch bottom 2 that is arranged in parallel, the surface of foundation ditch bottom 2 is provided with base plate 3, the top of base plate 3 be arranged in parallel successively from bottom to top underground two layers of beam slab 4, B1 beam slab 5, first floor beam slab 6, ground floor beam slab 7, F2/B2 beam slab 8, tri-layer beams plate 9 on the ground; First floor beam slab 6 is positioned on the same horizontal plane with soil layer 1, between foundation ditch bottom 2, underground two layers of beam slab 4, B1 beam slab 5, the first floor beam slab 6 stand column pile 10 is set, and the periphery of stand column pile 10 is arranged frame column 11; Foundation ditch bottom 2, underground two layers of beam slab 4, B1 beam slab 5, first floor beam slab 6 vertically are provided for the steel sheet pile 12 of foundation pit supporting construction and water-stop curtain near an end of soil layer 1.
Bracing of foundation pit wall of the present utility model adopts steel sheet pile, adopts reverse construction.This method may further comprise the steps: (a) according to site condition and computational analysis, determine steel sheet pile supporting and protection structure, the pattern of steel sheet pile supporting and protection structure, length and stand column pile are arranged; (b) steel sheet pile, column and engineering piles around the construction; (c) periphery stays soil, foundation ditch middle part excavation first floor soil; (d) carry out the construction of underground first floor structure; The beam slab of (e) excavation second layer soil, and construction B1 structure can connect high pillar and wallboard according to the arrangement on the duration simultaneously, construction ground floor structure; (f) the 3rd layer of soil of excavation, and the underground two-layer structure of constructing, the F2/B2 structure of constructing simultaneously; (g) base plate is excavated on earth and builds at the foundation ditch middle part, and the foundation ditch periphery excavates on earth and the base plate of constructing, and construction simultaneously is three layer construction on the ground; External wrapping concrete and other underground structure of construction column are finished the construction of underground structure; (h) backfill is extracted steel sheet pile.
Foundation pit supporting construction of the present utility model and water-stop curtain all adopt steel sheet pile; The reverse construction that adopts supporting and protection structure and agent structure to combine.
Claims (2)
1. steel sheet pile contrary sequence method foundation pit supporting construction, it is characterized in that: comprise the steel sheet pile (12) that can be used for foundation pit supporting construction and water-stop curtain simultaneously, steel sheet pile (12) is as the bracing of foundation pit wall; One side of steel sheet pile (12) is arranged as foundation ditch horizontal support structure basement beam slab and base plate of foundation pit (2).
2. steel sheet pile contrary sequence method foundation pit supporting construction according to claim 1 is characterized in that base plate (3), underground two layer beam slab (4), B1 beam slab (5), the first floor beam slab (6) of above-mentioned basement beam slab for arranging successively from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206768426U CN201901876U (en) | 2010-12-23 | 2010-12-23 | Steel sheet pile inversely-constructed foundation ditch supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206768426U CN201901876U (en) | 2010-12-23 | 2010-12-23 | Steel sheet pile inversely-constructed foundation ditch supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN201901876U true CN201901876U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206768426U Expired - Fee Related CN201901876U (en) | 2010-12-23 | 2010-12-23 | Steel sheet pile inversely-constructed foundation ditch supporting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498476A (en) * | 2013-10-14 | 2014-01-08 | 成军 | Major-diameter hole-forming pile pier foundation and net foundation slab reverse building construction method |
| CN104912098A (en) * | 2015-06-01 | 2015-09-16 | 中建四局第六建筑工程有限公司 | Combined construction method for supporting beam plate and structural plate of deep foundation pit |
| CN106351331A (en) * | 2016-08-30 | 2017-01-25 | 正太集团有限公司 | Multi-floor basement reverse and normal combined construction process |
-
2010
- 2010-12-23 CN CN2010206768426U patent/CN201901876U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498476A (en) * | 2013-10-14 | 2014-01-08 | 成军 | Major-diameter hole-forming pile pier foundation and net foundation slab reverse building construction method |
| CN103498476B (en) * | 2013-10-14 | 2014-09-10 | 南通大学 | Major-diameter hole-forming pile pier foundation and net foundation slab reverse building construction method |
| CN104912098A (en) * | 2015-06-01 | 2015-09-16 | 中建四局第六建筑工程有限公司 | Combined construction method for supporting beam plate and structural plate of deep foundation pit |
| CN106351331A (en) * | 2016-08-30 | 2017-01-25 | 正太集团有限公司 | Multi-floor basement reverse and normal combined construction process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20131223 |