CN108999204A - A kind of skirt-type adds partition diaphram wall-stake composite type base - Google Patents
A kind of skirt-type adds partition diaphram wall-stake composite type base Download PDFInfo
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- CN108999204A CN108999204A CN201811119121.2A CN201811119121A CN108999204A CN 108999204 A CN108999204 A CN 108999204A CN 201811119121 A CN201811119121 A CN 201811119121A CN 108999204 A CN108999204 A CN 108999204A
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- diaphram wall
- skirt
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- stake
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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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
- E02D5/18—Bulkheads or similar walls made solely of concrete in situ
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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
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
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- Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
- Foundations (AREA)
Abstract
The invention belongs to industrial building, power plant construction and bridge tunel engineering technical fields, it is related to a kind of skirt-type and adds partition diaphram wall-stake composite type base, is mainly made of main diaphram wall, interior vertical clapboard, bearing sheet, skirt-type diaphram wall, outer vertical clapboard and stake.Main diaphram wall and skirt-type diaphram wall are back that font structure, skirt-type diaphram wall cover on the top of main diaphram wall；Multiple interior vertical clapboards form two symmetrical triangle spaces inside main diaphram wall；More piles are evenly arranged in inside main diaphram wall；Skirt-type diaphram wall, main diaphram wall and stake three are connected to become overall structure by bearing sheet, and three's synergistic effect increases the overall stiffness of composite type base；Outer vertical clapboard is for connecting skirt-type diaphram wall inside and main diaphram wall.Overall structure reasonable stress of the invention, has a wide range of application at cost saving, can be applied to the fields such as industrial building, power plant construction, wind-power electricity generation and bridge tunel engineering.
Description
Technical field
The invention belongs to industrial building, power plant construction and bridge tunel engineering technical fields, are related to the knot of composite foundation base
Configuration formula, and in particular to a kind of skirt-type adds partition diaphram wall-stake composite type base.
Background technique
With the development of society, the increasingly increase of heavy construction both at home and abroad, industrial building, Power Plant Buildings, bridge tunel engineering etc.
Field face more and more situations need to resist biggish horizontal bearing capacity, horizontal loading (such as ship load, wave action
Power, bourn acting force, wind load etc.) become its control load in basic engineering.In recent years, works basis is larger because bearing
Horizontal loading and the phenomenon that destroying it is commonplace.Traditional solution mostly use greatly multi-column pier foundation, diaphram wall, caisson,
The forms such as suction barrel base；Although multi-column pier foundation has very big vertical bearing capacity, its scarce capacity for resisting horizontal loading；
It is whole excessively high using diaphram wall, caisson foundation cost；Conventional suction bucket rigidity is smaller, under the action of horizontal loading, scratches
Song deformation is big, and as shallow foundation form, self stability is insufficient.
Chinese utility model patent " undersea skirt-type suction anchor " (201581410 U of CN), Chinese invention patent " are inhaled in seabed
Power anchor " (200910019282.9) discloses a kind of undersea skirt-type suction anchor, it includes the bucket of a bottom-open, top closure
Body, staving top surface are equipped with drainage hole, an annular stopping-off piece are had on the outside of staving upper end, annular stopping-off piece and staving collectively form one
Vertical section is the overall structure of T shape；This suction type foundation can solve the small problem of existing suction type foundation horizontal bearing capacity,
But relate generally to the foundation problem of offshore wind energy project.A kind of Chinese utility model patent " suction bucket-pile composite type base
Plinth " (202273241 U of CN) discloses a kind of suction bucket-pile composite type base, it includes suction bucket and stake, and suction bucket is heavy to be passed through
In subsurface, the bung of suction bucket is equipped with through-hole, and stake from top to bottom runs through entire suction bucket, and stake and the fixed company of bung from bung
It connects；This combined type foundation can be improved the ability of the gentle antidumping of water resistant, but single barrel of single pile of form economic cost
It is excessively high.Chinese invention patent " horizontal bearing combination foundation and method based on stake and diaphram wall " (105756075 A of CN)
The horizontal bearing combination foundation of a kind of stake and diaphram wall is disclosed, it includes that the diaphram wall of underground and multiple is arranged in
Piles under lateral load；It ensure that the build-in on basis while having played diaphram wall horizontal rigidity big advantage, but underground
Diaphragm wall and the tie point of stake can generate the problems in stress collection.
For the defect of the existing form of foundation for resisting horizontal loading, by traditional multi-column pier foundation, underground company
The continuous internal force and deformation analysis of foundation of wall, caisson foundation and suction barrel base under horizontal loads, finds general water
Flat primary structure member aggregate performance is middle and upper part moment of flexure and the feature that deformation is big, lower part moment of flexure and deformation are small, thus want rationally and
The Its ultimate bearing capacity of economic raising foundation reduces deflection deformation, therefore design scheme will meet the big position of deformation and increase
The place for adding rigidity Reducing distortion, deformation small reduces the variation rigidity new design concept that rigidity saves money.The present invention proposes thus
A kind of novel foundation base form-skirt-type adds partition diaphram wall-stake composite type base.
Summary of the invention
To solve the above problems, the present invention provides, a kind of horizontal bearing capacity is high, overall stiffness is big, it is significant to resist deflection deformation
Skirt-type add partition diaphram wall-stake composite type base.
Technical solution of the present invention:
A kind of skirt-type adds partition diaphram wall-stake composite type base, mainly by main diaphram wall 1, interior vertical clapboard
2, bearing sheet 3, skirt-type diaphram wall 4, outer vertical clapboard 5 and stake 6 form；
The main diaphram wall 1 and skirt-type diaphram wall 4 is back font structure, and 4 sets of skirt-type diaphram wall
On the top of main diaphram wall 1；The interior vertical clapboard 2 is located at the inside of main diaphram wall 1, multiple interior vertical clapboards
2 will be divided into multiple separate spaces inside main diaphram wall 1；The stake 6 has more, is evenly arranged in main diaphram wall
In separate space inside 1；Skirt-type diaphram wall 4, main diaphram wall 1 and the stake 6, the top of three passes through cushion cap
Plate 3 is connected to become an overall structure, and three's synergistic effect increases the overall stiffness of composite type base；It is described it is outer vertically every
Plate 5 is continuous for connecting skirt-type diaphram wall 4 and main underground between skirt-type diaphram wall 4 and main diaphram wall 1
Wall 1.
It is equipped with buckle 7 between the lower surface of the stake 6 and bearing sheet 3, stake 6 and bearing sheet 3 are fixedly connected, made
It is more stable firm to connect.
The stake 6 is non-uniform pile, and top stake is 2:1 with lower part stake diameter ratio.
The form of the stake 6 is plumb pile form, taper pile form or cross-distribution, and material is steel-pipe pile or precast reinforced
Concrete-pile.
The wall thickness ratio of the main diaphram wall 1 and skirt-type diaphram wall 4, the two is 8:5, and length-width ratio is 1:2；
The height of skirt-type diaphram wall 4 is the 1/3 of main diaphram wall 1.
The outer vertical clapboard 5 and interior vertical clapboard 2 is all made of steel plate, and the thickness ratio of the two is 5:4.
The bearing sheet 3 with a thickness of 200mm.
A kind of skirt-type adds partition diaphram wall-stake composite type base, and construction method when use is as follows:
1) it first, in accordance with design layout, carries out hanging stake, pitching pile, hammering sinking, pile extension, stake 6 is acted on into designated position；
2) it finishes to the maintenance of stake 6, constructs to main diaphram wall 1: construction of guide wall, slot section excavation, fabrication of reinforcing cage
And lifting, casting concrete, in the embedding built-in fitting in designated position；
3) construct to skirt-type diaphram wall 4: construction of guide wall, slot section excavate, fabrication of reinforcing cage and lifting, pour it is mixed
Solidifying soil, in the embedding built-in fitting in designated position；
4) it by the built-in fitting inside skirt-type diaphram wall 4 and main diaphram wall 1, internal vertical clapboard 2 and outer erects
Straight baffle 5 carries out erecting and welding；
5) soil body is backfilled, is compacted；
6) construct to bearing sheet 3: fabrication of reinforcing cage, 7 welding of buckle connect the steel reinforcement cage made and skirt-type underground
The elongation reinforcing bar progress binding and fixing connection processing of continuous wall 4, main diaphram wall 1,6 three of stake, casting concrete.
Of the invention is effective: general horizontal force component aggregate performance is middle and upper part moment of flexure and deformation is big, lower part is curved
The square feature small with deformation, therefore want rationally and the economic Its ultimate bearing capacity for improving foundation, reduction deflection deformation,
Therefore scheme will meet to deform big position and increase the small place of rigidity Reducing distortion, deformation and reduce rigidity and save money；The present invention
Using the theory of variation rigidity, the setting of " skirt " and " partition " not only increases the contact area on basis with the soil body, while also improving
The bending stiffness and shearing rigidity on basis prevent continuous underground wall structure from buckling occurs；The setting of " stake " both improves basis
Overall stiffness, and play wedge action；In addition to this variable cross-section feature of " stake ", had both met the design concept of variation rigidity,
Save cost again simultaneously.Diaphram wall, skirt-type structure and stake triplicity keep the Its ultimate bearing capacity on basis more aobvious
It writes.Overall structure reasonable stress of the invention, has a wide range of application at cost saving, can be used as industrial building, power plant construction, bridge
The basis of the various works such as beam engineering, offshore engineering, wind-power electricity generation.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the horizontal profile schematic diagram of Fig. 1；
Fig. 3 is snapped-in position layout in Fig. 1.
In figure: 1 main diaphram wall；Vertical clapboard in 2；3 bearing sheets；4 skirt-type diaphram walls；5 outer vertical clapboards；6
Non-uniform pile；7 buckles.
Specific embodiment
Below in conjunction with attached drawing and technical solution, a specific embodiment of the invention is further illustrated.
A kind of skirt-type adds partition diaphram wall-stake composite type base, as depicted in figs. 1 and 2, the material that the present invention selects
It mainly include that main diaphram wall 1, bearing sheet 3, skirt-type structure 4 and stake 6 are constituted for steel plate and concrete material.And mainly
Lower diaphragm wall 1 is connected with skirt-type diaphram wall 4 by external vertical clapboard 5, and main diaphram wall 1 passes through inner vertical partition
Inner space is divided into the small space of several independences by 2, and the stake 6 of three variable cross-sections is filled in independent small space interior, and main underground connects
Three is connected into an overall structure by bearing sheet 3 by continuous wall 1, skirt-type diaphram wall 4 and stake 6.
In order to preferably make composite type base form more stable, in stake 6 and 3 connecting portion of bearing sheet setting buckle 7, often
Two buckle angles are 120 degree.The location layout of buckle 7 is as shown in Figure 3.
Skirt-type of the invention adds partition diaphram wall-stake composite type base, is implemented using following steps:
First in three pile 6 (plumb pile or taper pile) of ground construction, excavation guide groove, guide groove then are carried out to the top soil body
It is excavated using upright, so that guaranteeing that the soil body interacts to composite type base generates drag, while being preset in banding steel cage
Built-in fitting constructs to main diaphram wall 1；Excavation guide groove is carried out to the main 1 outer upper ends soil body of diaphram wall, to skirt-type
Diaphram wall 4 is constructed；To between skirt-type diaphram wall 4 and main diaphram wall 1 and 1 inside of main diaphram wall
The soil body excavated, then weld in vertical clapboard 2, outer vertical clapboard 5, split excavator body is backfilled, is compacted, to cushion cap
The steel reinforcement cage of plate 3 and buckle progress are prefabricated, finally construct to bearing sheet 3.
Claims (8)
1. a kind of skirt-type adds partition diaphram wall-stake composite type base, which is characterized in that the composite type base mainly by
Main diaphram wall (1), interior vertical clapboard (2), bearing sheet (3), skirt-type diaphram wall (4), outer vertical clapboard (5) and stake
(6) it forms；
The main diaphram wall (1) and skirt-type diaphram wall (4) is back font structure, skirt-type diaphram wall (4)
Cover the top in main diaphram wall (1)；The interior vertical clapboard (2) is located at the inside of main diaphram wall (1), multiple interior
Vertical clapboard (2) will be divided into multiple separate spaces inside main diaphram wall (1)；The stake (6) has more, is evenly arranged
In the internal separate space of main diaphram wall (1)；Skirt-type diaphram wall (4), main diaphram wall (1) and the stake
(6), the top of three is connected to become an overall structure by bearing sheet (3), and three's synergistic effect increases composite type base
Overall stiffness；The outer vertical clapboard (5) is located between skirt-type diaphram wall (4) and main diaphram wall (1), for connecting
Connect skirt-type diaphram wall (4) and main diaphram wall (1).
2. a kind of skirt-type according to claim 1 adds partition diaphram wall-stake composite type base, which is characterized in that institute
It is equipped with buckle (7) between the stake (6) stated and the lower surface of bearing sheet (3), stake (6) and bearing sheet (3) are fixedly connected, made
It is more stable firm to connect.
3. a kind of skirt-type according to claim 1 or 2 adds partition diaphram wall-stake composite type base, which is characterized in that
The stake (6) is non-uniform pile, and top stake is 2:1 with lower part stake diameter ratio.
4. a kind of skirt-type according to claim 1 or 2 adds partition diaphram wall-stake composite type base, which is characterized in that
The wall thickness ratio of the main diaphram wall (1) and skirt-type diaphram wall (4), the two is 8:5, and length-width ratio is 1:2；Skirt-type
The height of diaphram wall (4) is the 1/3 of main diaphram wall (1).
5. a kind of skirt-type according to claim 3 adds partition diaphram wall-stake composite type base, which is characterized in that institute
The wall thickness ratio of the main diaphram wall (1) and skirt-type diaphram wall (4) stated, the two is 8:5, and length-width ratio is 1:2；Skirt-type
The height of lower diaphragm wall (4) is the 1/3 of main diaphram wall (1).
6. according to claim 1, a kind of skirt-type described in 2 or 5 adds partition diaphram wall-stake composite type base, feature exists
In the outer vertical clapboard (5) and interior vertical clapboard (2) are all made of steel plate, and the thickness ratio of the two is 5:4；The cushion cap
Plate (3) with a thickness of 200mm.
7. a kind of skirt-type according to claim 3 adds partition diaphram wall-stake composite type base, which is characterized in that institute
The outer vertical clapboard (5) and interior vertical clapboard (2) stated are all made of steel plate, and the thickness ratio of the two is 5:4；The bearing sheet (3)
With a thickness of 200mm.
8. a kind of skirt-type according to claim 4 adds partition diaphram wall-stake composite type base, which is characterized in that institute
The outer vertical clapboard (5) and interior vertical clapboard (2) stated are all made of steel plate, and the thickness ratio of the two is 5:4；The bearing sheet (3)
With a thickness of 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119121.2A CN108999204B (en) | 2018-09-25 | 2018-09-25 | Skirt type diaphragm-added underground diaphragm wall-pile composite foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811119121.2A CN108999204B (en) | 2018-09-25 | 2018-09-25 | Skirt type diaphragm-added underground diaphragm wall-pile composite foundation |
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| Publication Number | Publication Date |
|---|---|
| CN108999204A true CN108999204A (en) | 2018-12-14 |
| CN108999204B CN108999204B (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811119121.2A Active CN108999204B (en) | 2018-09-25 | 2018-09-25 | Skirt type diaphragm-added underground diaphragm wall-pile composite foundation |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989412A (en) * | 2019-04-11 | 2019-07-09 | 江西省交通设计研究院有限责任公司 | Mountain area plank road landscape platform composite base structure |
| CN110158630A (en) * | 2019-05-31 | 2019-08-23 | 广西路桥工程集团有限公司 | A kind of deep covering layer area large-span arch bridge annular ground continuous wall base |
| CN111705786A (en) * | 2020-03-27 | 2020-09-25 | 中铁四局集团第二工程有限公司 | Method for vertical combination construction of composite stratum underground continuous wall and cast-in-situ bored pile |
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| CN101705694A (en) * | 2009-10-14 | 2010-05-12 | 山东科技大学 | Undersea skirt-type suction anchor |
| CN201962688U (en) * | 2010-12-02 | 2011-09-07 | 中交四航局第一工程有限公司 | Diaphram wall wharf pile foundation structure |
| CN203924095U (en) * | 2014-06-13 | 2014-11-05 | 江苏省电力设计院 | A kind of desert area transmission line of electricity assembling type steel structure sandbox gravity type foundation |
| CN205224083U (en) * | 2015-12-15 | 2016-05-11 | 山东科技大学 | Novel skirt -type suction basis |
| CN206157726U (en) * | 2016-10-12 | 2017-05-10 | 连云港港务工程公司 | Composite pile type structure suitable for coast deep dredger fill soil foundation handle |
| CN207228047U (en) * | 2017-06-06 | 2018-04-13 | 中交第三航务工程勘察设计院有限公司 | A kind of new semicircular body tub foundation structure dike |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705694A (en) * | 2009-10-14 | 2010-05-12 | 山东科技大学 | Undersea skirt-type suction anchor |
| CN201962688U (en) * | 2010-12-02 | 2011-09-07 | 中交四航局第一工程有限公司 | Diaphram wall wharf pile foundation structure |
| CN203924095U (en) * | 2014-06-13 | 2014-11-05 | 江苏省电力设计院 | A kind of desert area transmission line of electricity assembling type steel structure sandbox gravity type foundation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989412A (en) * | 2019-04-11 | 2019-07-09 | 江西省交通设计研究院有限责任公司 | Mountain area plank road landscape platform composite base structure |
| CN110158630A (en) * | 2019-05-31 | 2019-08-23 | 广西路桥工程集团有限公司 | A kind of deep covering layer area large-span arch bridge annular ground continuous wall base |
| CN111705786A (en) * | 2020-03-27 | 2020-09-25 | 中铁四局集团第二工程有限公司 | Method for vertical combination construction of composite stratum underground continuous wall and cast-in-situ bored pile |
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| Publication number | Publication date |
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| CN108999204B (en) | 2020-09-29 |
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