CN109252539A - One kind being used for the box cantilever barrier wall structure of soft clay area ultra-deep - Google Patents
One kind being used for the box cantilever barrier wall structure of soft clay area ultra-deep Download PDFInfo
- Publication number
- CN109252539A CN109252539A CN201811108812.2A CN201811108812A CN109252539A CN 109252539 A CN109252539 A CN 109252539A CN 201811108812 A CN201811108812 A CN 201811108812A CN 109252539 A CN109252539 A CN 109252539A
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- China
- Prior art keywords
- wall structure
- barrier wall
- foundation pit
- cabinet
- deep
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Classifications
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Abstract
Be used for the box cantilever barrier wall structure of soft clay area ultra-deep the invention discloses one kind, including cabinet barrier wall structure, the cabinet barrier wall structure for soil on the outside of supporting and retaining system, the cabinet barrier wall structure include inside and outside straight wall, bottom plate, middle floor, top plate and partition wall；Foundation pile is carried, the carrying foundation pile is arranged in cabinet barrier wall structure bottom hereinafter, being used for substrate-loading or resistance to plucking；Foundation pit enclosure, the foundation pit enclosure are arranged inside and outside cabinet barrier wall structure, are used for cabinet barrier wall structure excavation of foundation pit；Skirt reinforces, and the skirt reinforces setting and excavates side bottom plate hereinafter, for reinforcing soft soil in barricade.Structural shape of the invention is simple, easy for construction, is suitable for periphery place limited situation；Foundation capability can be improved, reduce the possibility that differential settlement occurs；The resistance to capsizing that barrier wall structure can also be improved prevents the horizontal displacement of barrier wall structure, improves its resistant slide ability；Project amount can be saved simultaneously, save construction investment.
Description
Technical field
The present invention relates to civil engineering deep basal pit and retaining wall technology fields, specifically a kind of under soft clay area
The box cantilever barrier wall structure of Chen Shi plant area ultra-deep.
Background technique
Recently as the accelerated development of Urbanization in China, city size is increasingly huge, and also day is becoming tight in soil, under
It comes into being as a kind of new city public space on the square Chen Shi.Sunk type square is both needed to setting retaining wall structure generally to tie up
Homeostasis is held, there are many kinds of the structure types of retaining wall, and common structural shape has Gravity Retaining Wall, counterfort in Practical Project
Formula barricade, Cantilever Retaining Wall etc..Cantilever Retaining Wall is a kind of light-duty retaining structure, since it has convenient, economic effect of constructing
The advantages that benefit is good, structure is beautiful, is widely used in the engineering fields such as railway, highway, water conservancy.The related specification regulation in China: outstanding
Arm-type barrier wall structure wall height is no more than 6m, and counterfort wall structure is preferably used more than 6m.Foundation depth or slope height are big now
Very common in the engineering of 6m, such as according to counterfort wall structure, construction infection range is larger, constructs cumbersome.Tradition
Cantilever Retaining Wall structure have the disadvantages that (1) resistant slide ability is weaker；(2) resistance to capsizing is weaker；(3) soft foundation
It is lower that differential settlement easily occurs；(4) root bending moment is excessive when wall height is higher, and wall thickness is thicker.
For this purpose, being badly in need of invention to expand application of the Cantilever Retaining Wall structure in terms of the fields such as municipal works, deep basal pit
A kind of stable structure, the novel cantilever barrier wall structure that good integrity, construction technology is simple, applicability is good, to adapt to China's building
The development of engineering.
Summary of the invention
For defect or deficiency present in above-mentioned Cantilever Retaining Wall structure, the object of the present invention is to provide one kind for soft
The box cantilever barrier wall structure of soil area ultra-deep, barrier wall structure pattern is simple, easy for construction.
To achieve the goals above, technical scheme is as follows: one kind is for the box cantilever gear of soft clay area ultra-deep
Wall construction, it is characterised in that the cantilever barrier wall structure includes
Cabinet barrier wall structure, inside and outside the cabinet barrier wall structure for soil on the outside of supporting and retaining system, the cabinet barrier wall structure includes
Straight wall, bottom plate, middle floor, top plate and partition wall；
Foundation pile is carried, the carrying foundation pile is arranged in cabinet barrier wall structure bottom hereinafter, being used for substrate-loading or resistance to plucking；
Foundation pit enclosure, the foundation pit enclosure are arranged inside and outside cabinet barrier wall structure, are used for cabinet barrier wall structure excavation of foundation pit；
Skirt reinforces, and the skirt reinforces setting and excavates side bottom plate hereinafter, for reinforcing soft soil in barricade.
Further, the skirt, which reinforces, uses high-pressure rotary jet grouting pile.
Further, the bottom setting barricade groove of the cabinet barrier wall structure is cheated bottom and is reinforced, and the barricade groove cheats bottom
It reinforces and uses high-pressure rotary jet grouting pile.
Further, the foundation pit enclosure includes inside foundation pit enclosure and outside foundation pit enclosure, wherein inside foundation pit enclosure
Using diaphram wall pattern, the inside straight wall of cabinet barrier wall structure is by the diaphram wall and setting of inside foundation pit enclosure on ground
The inwall that the barricade of lower diaphragm wall excavates side overlaps to be formed；Outside foundation pit enclosure uses diaphram wall pattern, or using filling
Infuse pile-type formula.
Further, the diaphram wall of inside foundation pit enclosure is at the middle plate, bottom plate of cabinet barrier wall structure, reserved steel bar
Connector guarantees that the floor bar of half is connected with connector.
Further, the diaphram wall of inside foundation pit enclosure pours barricade at structure base slab position after and excavates the reserved steel in side
Muscle connector guarantees that the bottom plate of the barricade excavation complete after-pouring of side earth excavation is reliably connected with barrier wall structure.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) structural shape of the invention is simple, easy for construction, does not need large area slope excavation construction, saves land, and is suitable for periphery
Place limited situation；
(2) foundation pile is set under box cantilever barricade bottom plate, foundation capability not only can be improved, it is uneven to reduce generation
The possibility of sedimentation can also be improved the resistance to capsizing of barrier wall structure using foundation pile surrounding frictional resistance, while can also prevent to keep off
The horizontal displacement of wall construction improves its resistant slide ability；
(3) diaphram wall pattern is used on the inside of barricade, " unification of two walls " saves project amount, ground wall portion below barricade bottom plate
Divide and also correspond to row's foundation pile, plays the role of antidumping and resistant slide；
(4) box cantilever barrier wall structure chamber portion can calculate according to design and be backfilling and compacted soil, reduce barrier wall structure size, increase
The stability and resistance to capsizing for having added barricade, also provide outlet for spoil, more have an economic benefit.
Detailed description of the invention
Fig. 1 is box cantilever barrier wall structure cross-section diagram.
Fig. 2 is box cantilever barrier wall structure foundation pit floor plan.
Fig. 3 is A-A sectional view.
It include: bottom plate 1, middle floor 2, top plate 3, inside straight wall 4, outside straight wall 5, diaphram wall 6, drill-pouring in figure
Stake 7, carrying pile foundation 8 lead wall and cell wall and reinforce 9, three axes agitating pile 10, crown beam 11, first of reinforced concrete support 12, the
Two, three steel purlins 13, bracing members 14, inwall 15, partition wall 16, square bottom plate 17, barricade groove hole bottom reinforce 18.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto,
Other people every other embodiments obtained under the premise of similitude of this field, shall fall within the protection scope of the present invention.
Build the square Chen Shi in certain soft clay area, depth 13.6m is always dug on square, surrounding place it is limited can not big slope open
It digs.It is widely distributed to banket, based on muck soil in place.Since engineering construction needs, design uses box cantilever barricade knot
Structure is as permanent retaining wall.Barrier wall structure design parameter are as follows: wide 9.1m, high 12.5m, 3 thickness 0.4m of top plate, 1 thickness 2.0m of bottom plate, middle building
2 thickness 0.8m of plate, 4 thickness 1.3m of inside straight wall, 5 thickness 1.0m of outside straight wall, partition wall 16 thickness 1.0m, strength grade of concrete C35.
One kind of the present embodiment is used for the box cantilever barrier wall structure of soft clay area ultra-deep and its construction method, specific implementation step
It is rapid as follows:
(1) smooth location is to absolute altitude (- 1.400m, using relative elevation, ± 0.000m indicates 5.800m) is flattened, to cantilever barricade
Structure (see figure 1) carries out unwrapping wire positioning, and wall is led in construction in advance and cell wall reinforces 9(using 850@, 600 three axes agitating pile, and stake is long
18.2m, volume 20%, barricade excavate side set and beat, and 250) other side overlaps, deep using diaphram wall 6(wall thickness 800mm
32.0m, concrete C30), cast-in-situ bored pile 7(diameter 1000mm, spacing 1200mm, stake long 32.0m, concrete C30) etc. modes carry out foundation pit
It goes along with sb. to guard him, cast-in-situ bored pile sealing uses three axes agitating pile 10(850@600, deep 18.2m, volume 20%)；
(2) construction campshed on the outside of (barricade excavation side) skirt reinforce 15(use 800@, 650 high-pressure rotary jet grouting pile, wide 5.6m, deep 6m,
Horizontal layout pattern is shown in Fig. 2) and barricade groove hole bottom reinforce 18(use 800 650 high-pressure rotary jet grouting piles, wide 8.2m, deep 6m)；
(3) construction carrying pile foundation 8, pile foundation use 1000 cast-in-situ bored piles, stake long 25m, concrete C30, and horizontal layout is shown in Fig. 2 and figure
3；
(4) it is excavated to first of support bottom or less 0.5m, construct crown beam 11(wide 1.2m, high 0.8m, concrete C30) and first of reinforcing bar
Concrete support 12(wide 0.8m, high 0.8m, spacing 8m, concrete C30)；Intensity to be supported continues to be excavated to after meeting design requirement
Two, the three following 0.5m of support installs second and third road steel purlin 13(using fashioned iron H700x300x13x24, Two bors d's oeuveres) and steel branch
It supports 14(and uses 609x16 steel pipe, spacing 4m)；
(5) (- 13.600m) pours bottom plate 1 after being excavated to hole bottom, after intensity reaches design requirement, removes third road bracing members
14, outside straight wall 5 is poured, be layered and banket in barricade, in 0.3m, compactness pours every layer of thickness control not less than 0.93
Floor 2；
Inside diaphram wall 6 is at the middle plate 2, bottom plate 1 of box cantilever barrier wall structure, reserved steel bar connector, guarantees half
Floor bar be to be connected with connector, particularly, at 17 position of the square Di Qiang bottom plate barricade excavate side also need reserved steel bar
Connector guarantees that the bottom plate of the barricade excavation complete after-pouring of side earth excavation is reliably connected with barrier wall structure；
(6) continue to pour outside straight wall 5, remove second bracing members 14, be layered and banket in barricade, pour middle floor 2 and top
Plate 3；
(7) after box cantilever barrier wall structure meets design strength, the earthwork of barricade remaining inside is excavated until hole bottom, pours square
Bottom plate 17 and inwall 15 are finally completed box cantilever barrier wall structure.
The above is only a specific embodiment of the invention, and the description thereof is more specific and detailed, it cannot be understood as
Limitations on the scope of the patent of the present invention, as long as using design principle of the invention, and non-creative labor is carried out on this basis
The variation moved and made, should all fall within the protection scope of the present invention.
Claims (6)
1. one kind is used for the box cantilever barrier wall structure of soft clay area ultra-deep, it is characterised in that the cantilever barrier wall structure includes
Cabinet barrier wall structure, inside and outside the cabinet barrier wall structure for soil on the outside of supporting and retaining system, the cabinet barrier wall structure includes
Straight wall, bottom plate, middle floor, top plate and partition wall；
Foundation pile is carried, the carrying foundation pile is arranged in cabinet barrier wall structure bottom hereinafter, being used for substrate-loading or resistance to plucking；
Foundation pit enclosure, the foundation pit enclosure are arranged inside and outside cabinet barrier wall structure, are used for cabinet barrier wall structure excavation of foundation pit；
Skirt reinforces, and the skirt reinforces setting and excavates side bottom plate hereinafter, for reinforcing soft soil in barricade.
2. according to claim 1 be used for the box cantilever barrier wall structure of soft clay area ultra-deep, it is characterised in that: the skirt
It reinforces and uses high-pressure rotary jet grouting pile.
3. according to claim 1 be used for the box cantilever barrier wall structure of soft clay area ultra-deep, it is characterised in that: the cabinet
The bottom setting barricade groove of barrier wall structure is cheated bottom and is reinforced, and barricade groove hole bottom, which reinforces, uses high-pressure rotary jet grouting pile.
4. according to claim 1 be used for the box cantilever barrier wall structure of soft clay area ultra-deep, it is characterised in that: the foundation pit
It goes along with sb. to guard him including inside foundation pit enclosure and outside foundation pit enclosure, wherein inside foundation pit enclosure uses diaphram wall pattern, cabinet gear
The inside straight wall of wall construction is excavated in side by the diaphram wall of inside foundation pit enclosure with the barricade that diaphram wall is arranged in
Chemise overlaps to be formed；Outside foundation pit enclosure uses diaphram wall pattern, or uses bored concrete pile pattern.
5. according to claim 4 be used for the box cantilever barrier wall structure of soft clay area ultra-deep, it is characterised in that: inside foundation pit
For the diaphram wall gone along with sb. to guard him at the middle plate, bottom plate of cabinet barrier wall structure, reserved steel bar connector guarantees the floor bar of half
It is connected with connector.
6. according to claim 4 be used for the box cantilever barrier wall structure of soft clay area ultra-deep, it is characterised in that: inside foundation pit
The diaphram wall gone along with sb. to guard him pours barricade at structure base slab position after and excavates side reserved steel bar connector, guarantees that barricade excavates side soil
The bottom plate of after-pouring has excavated in side and barrier wall structure is reliably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108812.2A CN109252539A (en) | 2018-09-21 | 2018-09-21 | One kind being used for the box cantilever barrier wall structure of soft clay area ultra-deep |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811108812.2A CN109252539A (en) | 2018-09-21 | 2018-09-21 | One kind being used for the box cantilever barrier wall structure of soft clay area ultra-deep |
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| Publication Number | Publication Date |
|---|---|
| CN109252539A true CN109252539A (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811108812.2A Pending CN109252539A (en) | 2018-09-21 | 2018-09-21 | One kind being used for the box cantilever barrier wall structure of soft clay area ultra-deep |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982438A (en) * | 2021-03-12 | 2021-06-18 | 中铁九局集团第六工程有限公司 | Construction method of anti-floating system |
-
2018
- 2018-09-21 CN CN201811108812.2A patent/CN109252539A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112982438A (en) * | 2021-03-12 | 2021-06-18 | 中铁九局集团第六工程有限公司 | Construction method of anti-floating system |
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