CN107022999A - Major-minor stake formula ground-connecting-wall structure - Google Patents
Major-minor stake formula ground-connecting-wall structure Download PDFInfo
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- CN107022999A CN107022999A CN201710299853.3A CN201710299853A CN107022999A CN 107022999 A CN107022999 A CN 107022999A CN 201710299853 A CN201710299853 A CN 201710299853A CN 107022999 A CN107022999 A CN 107022999A
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- stake
- pile
- wall
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- minor
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention provides a kind of major-minor stake formula ground-connecting-wall structure, the length of the king pile of the structure is more than the length of auxiliary stake, according to engineering practice, the ratio between auxiliary stake and king pile are 1/2~2/3, auxiliary stake is set between adjacent two king piles, adjacent two king pile centre-to-centre spacing is about 3~6m, and king pile is together with the mutual colligation of the reinforcing bar of auxiliary stake, and in cast-in-place concrete, major-minor stake forms continuous wall construction；King pile and anchoring pile are connected by reinforcing pull rod.The effect of the present invention is that compared with traditionally connecting wall construction, the length and thickness of the auxiliary stake of the structure significantly reduce；The height and thickness of king pile slightly have growth；Final quantities can reduce 30%~50%.
Description
Technical field
The present invention relates to harbour, build in ship hydraulic structure, navigation hinge, man-made island, water conservancy and building engineering field
Building structure, it is particularly a kind of suitable for port and pier, shore protection, underground building thing and bulkhead wall soil-retaining structure major-minor stake
Formula ground-connecting-wall structure.
Background technology
Ground-connecting-wall structure be harbour, shore protection, underground building thing and bulkhead wall soil-retaining structure etc. primary structure pattern it
One, traditional ground-connecting-wall structure is made up of as shown in Figure 1 diaphram wall front wall, anchorage wall, pull bar.Its work characteristics be according to
Forward wall come the resistance to overturning (skirt stable and Circular Sliding stable) keeping out various horizontal loadings and ensure structure, front wall
Buried depth needs to meet skirt stabilization simultaneously and Circular Sliding stablizes two conditions.If site geological conditions is poor, front wall is buried
Deeply will be very big, while front wall wall thickness can also increase, construction costs can swash acute rising, therefore traditional ground-connecting-wall structure is only applicable
In the preferable engineering of geological conditions situation.
The content of the invention
It is an object of the invention to provide a kind of new ground-connecting-wall structure --- major-minor stake formula ground-connecting-wall structure.The structure is each
Part active region distinguishes clear：King pile is finally to undertake horizontal loading；Stability of the auxiliary stake to ensure the soil body after wall.The structure
The quantities for traditionally connecting wall construction can be effectively reduced, and with broader place adaptability, is easy to construct, saves into
This.
To achieve the above object, the technical solution adopted by the present invention is to provide a kind of major-minor stake formula ground-connecting-wall structure, the knot
Structure includes king pile, auxiliary stake, anchoring pile, the ground-connecting-wall structure of reinforcing pull rod composition, wherein：The length of the king pile is more than the length of auxiliary stake
Degree, according to engineering practice, the length ratio of auxiliary stake and king pile is 1/2~2/3, sets auxiliary between adjacent two king piles
Stake, adjacent two king pile centre-to-centre spacing is about 3~6m, and the king pile edge of a wing is together with the reinforcing bar colligation of auxiliary stake, in cast-in-place concrete
Major-minor stake forms continuous wall construction；King pile and anchoring pile are connected by reinforcing pull rod.
The effect of the present invention is that compared with traditionally connecting wall construction, it is that horizontal loading includes soil that the structure king pile, which finally undertakes,
Pressure, mooring force, seismic force etc., auxiliary stake eliminate the tendency toward sliding of the soil body.Not only solve and be difficult to build in deep ＆ thick silt site
The problem of ground-connecting-wall structure；Simultaneously for the place of suitable traditional ground-connecting-wall, it can also reduce quantities, reduction using the structure and make
Valency.The height and thickness of the auxiliary stake of the structure significantly reduce；The height and thickness of king pile slightly have growth；Final quantities can subtract
Few 30%~50%.
Brief description of the drawings
Fig. 1 is traditional continuous underground wall structure；
Fig. 2 is major-minor stake formula ground-connecting-wall structure section figure of the invention；
Fig. 3 is major-minor stake formula ground-connecting-wall structure top view of the invention；
Fig. 4 is major-minor stake formula ground-connecting-wall structure front view of the invention.
In figure：
1st, king pile 2, auxiliary stake 3, anchoring pile 4, pull bar
Embodiment
The major-minor stake formula ground-connecting-wall structure to the present invention is further described below in conjunction with the accompanying drawings.
The major-minor stake formula ground-connecting-wall structure design thought of the present invention is started with from structure feature, designs different parts
To meet the Circular Sliding stability requirement of stability requirement and the structure rear soil body of the structure under horizontal loads respectively, overcome
Traditionally connect the shortcoming of wall construction, be applicable not only to the preferable place of geological conditions, also can be suitably used for the poor (example of geological conditions
As mud it is thicker) place；Each composition component function distinguishes obvious, and Circular Sliding of the auxiliary stake to resist the soil body, king pile is used
Finally to resist horizontal loading, major-minor stake is separately designed, and can be saved cost, is easy to construction.
The major-minor stake formula ground-connecting-wall structure of the present invention is that major-minor stake formula ground-connecting-wall structure is that the structure includes king pile 1, auxiliary stake
2nd, the ground-connecting-wall structure that anchoring pile 3, reinforcing pull rod 4 are constituted, the length of the king pile 1 is more than the length of auxiliary stake 2, according to the actual feelings of engineering
Condition, auxiliary stake 2 is 1/2~2/3 with the length ratio of king pile 1, is set between adjacent two king piles 1 in auxiliary stake 2, adjacent two king piles
The heart is away from about 3~6m, and together, in cast-in-place concrete, major-minor stake forms diaphragm wall knot for the reinforcing bar colligation of the edge of a wing of king pile 1 and auxiliary stake 2
Structure；King pile 1 and anchoring pile 3 are connected by reinforcing pull rod 4.
The section of king pile 1 is circular or square, and the auxiliary rectangular cross-section of stake 2, the section of anchoring pile 3 are circular or square or are company
Continuous anchor wall.
For traditional ground-connecting-wall front wall, its height H determination method is as follows：The first step, calculates and meets skirt stabilization
Front wall height H1；Second step, calculates and meets the stable front wall height H2 of circular arc；3rd step, calculates front wall height H=max
{ H1, H2 }.
For the major-minor stake ground-connecting-wall structure of the present invention, auxiliary pile length Hs is determined by Circular Sliding stability Calculation.King pile is long
The determination method for spending Hk is as follows：The first step, the horizontal loading in auxiliary stake is included into soil pressure, seismic force etc., and to pass to its adjacent
King pile；Second step, the height Hk for determining king pile is calculated according to horizontal bearing stake.
Known according to above-mentioned analysis, auxiliary pile length Hs=H2, less than traditional ground-connecting-wall height H, be computed auxiliary pile length Hs with
The ratio between traditional ground-connecting-wall height H is about 1/2~2/3.The length of king pile only increases about 10% than the height of traditional ground-connecting-wall~
25%, because the bottom that king pile 1 enters is deeper, the mechanical characteristic of geology is better, and higher level can be provided to king pile 1
Ground counter-force, thus the length increase of the relatively conventional ground-connecting-wall of king pile 1 is not a lot.
Again because the thickness of auxiliary stake 2 and traditional ground-connecting-wall is related all to length (height) degree of both.Long (height) spends bigger, institute
It is bigger by horizontal force, it is also just bigger for the thickness that meets structure self-strength requirement, it is computed analyzing auxiliary stake thickness Ts about
Traditionally to connect the 1/3~1/2 of wall thickness T.The section thickness Tk ratios of king pile 1 traditionally connect wall thickness T increase about 10%~
25%.
It is small that major-minor stake ground-connecting-wall structure includes soil pressure, seismic force etc. than the horizontal force suffered by traditional ground-connecting-wall, i.e., before
The pulling force that person needs reinforcing pull rod 4 to provide is smaller than the latter, therefore reinforcing pull rod 4 of the major-minor stake ground-connecting-wall than traditionally connecting wall construction needs
Will be small with anchoring pile section.
Fig. 2-4 illustrated embodiments are the example of port engineering, the harbour face high 5m of top mark, basin bottom absolute altitude-5m.Auxiliary stake pile top
Absolute altitude -9m, i.e., the length Hs=14m, auxiliary the wall thickness Ts=1m of stake 2, the wide 3m of the auxiliary stake of monolithic of auxiliary stake 2；King pile pile top absolute altitude -26m, i.e.,
The length Hk=31m of king pile 1, the thickness of king pile 1 is Tk=1.8m, and king pile is along the wide 1m in ground-connecting-wall direction；Adjacent two king piles 1 spacing
4m, i.e. clear distance 3m (that is, the width 3m of auxiliary stake 2)；Pull bar elevation 2m, reinforcing pull rod 4 a diameter of 75mm, spacing 4m arrangement；Anchoring pile distance
Wharf apron line 39m；Anchoring pile 3 a diameter of 0.8m, wall thickness 12mm.
Fig. 1 is using the example for traditionally connecting wall construction under the conditions of identical geology.The harbour face a height of 5m of top mark, basin bottom mark
A height of -5m.Ground-connecting-wall bottom absolute altitude is -23m, i.e. wall high H=28m, wall thickness T=1.5m；Pull bar elevation 2m, pull bar is a diameter of
85mm, spacing 4m are arranged；Anchoring pile is apart from harbour frontal line 39m；Anchoring pile a diameter of 0.8m, wall thickness 12mm.Anchoring pile diameter 0,8m, wall
Thick 14mm.
It is above-mentioned major-minor stake ground-connecting-wall structure is respectively adopted and traditionally connects the key parameter of wall construction be listed as follows：
1 major-minor formula ground-connecting-wall of table is contrasted with traditional ground-connecting-wall key parameter
Choose 4m one structural sections of length to be compared, major-minor stake ground-connecting-wall quantities is 1 auxiliary stake of king pile+1, i.e.,
31x1.8x1+14x1x3=97.8m3；Traditional ground-connecting-wall 4m front wall engineerings quantities is 28x4x1.5=168m3.Using major-minor stake
Ground-connecting-wall structure can save about 42% than traditional ground-connecting-wall quantities, and the quantities of reinforcing pull rod 4 and anchoring pile 3 all has accordingly in addition
Reduction.
This example demonstrates the advantage of major-minor stake ground-connecting-wall structure, great promotion and application value.
Claims (2)
1. a kind of major-minor stake formula ground-connecting-wall structure, the structure includes king pile (1), auxiliary stake (2), anchoring pile (3), reinforcing pull rod (4) structure
Into ground-connecting-wall structure, it is characterized in that：The length of the king pile (1) is more than the length of auxiliary stake (2), according to engineering practice,
The ratio between auxiliary stake (2) and king pile (1) are 1/2~2/3, and auxiliary stake (2), adjacent two king piles are set between adjacent two king piles (1)
Centre-to-centre spacing is about 3~6m, king pile (1) edge of a wing and the reinforcing bar mutually colligation mutually of auxiliary stake (2), and in cast-in-place concrete, major-minor stake is formed
Continuous wall construction；King pile (1) and anchoring pile (3) are connected by reinforcing pull rod (4).
2. major-minor stake formula ground-connecting-wall structure according to claim 1, it is characterized in that：King pile (1) section to be circular or
Square, auxiliary stake (2) rectangular cross-section, anchoring pile (3) section are circular or square or are continuous anchor wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299853.3A CN107022999A (en) | 2017-04-28 | 2017-04-28 | Major-minor stake formula ground-connecting-wall structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710299853.3A CN107022999A (en) | 2017-04-28 | 2017-04-28 | Major-minor stake formula ground-connecting-wall structure |
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| Publication Number | Publication Date |
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| CN107022999A true CN107022999A (en) | 2017-08-08 |
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| CN201710299853.3A Pending CN107022999A (en) | 2017-04-28 | 2017-04-28 | Major-minor stake formula ground-connecting-wall structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152364A (en) * | 2021-03-04 | 2021-07-23 | 中交第四航务工程勘察设计院有限公司 | Ground of taking pile foundation basis is wall wharf structure even |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152364A (en) * | 2021-03-04 | 2021-07-23 | 中交第四航务工程勘察设计院有限公司 | Ground of taking pile foundation basis is wall wharf structure even |
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Application publication date: 20170808 |