CN108277814A - Stake top counterfort wall supporting construction and construction method - Google Patents
Stake top counterfort wall supporting construction and construction method Download PDFInfo
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- CN108277814A CN108277814A CN201810322450.0A CN201810322450A CN108277814A CN 108277814 A CN108277814 A CN 108277814A CN 201810322450 A CN201810322450 A CN 201810322450A CN 108277814 A CN108277814 A CN 108277814A
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- chock
- counterfort
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- 238000010276 construction Methods 0.000 title claims abstract description 50
- 239000002689 soil Substances 0.000 claims abstract description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 239000004567 concrete Substances 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- E02D17/20—Securing of slopes or inclines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Retaining Walls (AREA)
Abstract
The present invention discloses a kind of stake top counterfort wall supporting construction and construction method.Stake top counterfort wall supporting construction includes stake and counterfort wall, stake is embedded within the scope of the 2m of present situation slight slope face or less, and counterfort wall is formed in an over top by connection beam, wherein, the shingle nail of counterfort wall is stood on vertically above connection beam, and wall heel slab is laterally extended to backfill side.The supporting construction combination stake of the present invention and the advantage of counterfort wall, supporting construction itself stability against overturning when can enhance slope edges or weaker foundation soil body bearing capacity, the transverse pressure that side slope high fill generates supporting construction, resistance to deformation and sliding can be born again.
Description
One, technical field
The present invention relates to a kind of side slope embankment supporting construction and construction method, more particularly to a kind of stake top counterfort wall branch
Protection structure and construction method.
Two, background technology
In Civil Engineering Construction, side slope embankment is common engineering usually to be needed to ensure the stability of engineering structure
Will in side slope construction supporting structure, in the processing of side slope embankment through frequently with supporting construction mainly have Cantilever Retaining
Structure and counterfort wall structure.
1, overhang mill pilework
In current slope retaining, overhang mill pilework is applied than wide.It is by artificial digging pile or drilling
Bored concrete pile is arranged in a straight line, and is connected by connection beam, the common structure type for resisting soil lateral pressure or side slope thrust.Cantilevered branch
The advantages of fender pile is, stake can bear larger vertical load, while also have the ability for undertaking stronger horizontal loading, structure by
Force mode is clear, and structure Design and Calculation is simple.
It is more than that certain altitude and support pile fixed section Rock And Soil intensity are insufficient in side slope embankment, overhang mill
Stake lateral force resisting is poor, and deformation is difficult to control, and safety is difficult to be guaranteed, to limit its use scope, even if
It uses reluctantly, it is insufficient to will also result in material use, deficiency in economic performance.
2, counterfort wall structure
Counterfort wall is a kind of armored concrete thin wall-type retaining wall, is mainly characterized by simple structure, construction party
Just, wall body section is smaller, and sole mass is light, can preferably play the strength character of material.On counterfort wall heel slab
Soil body gravity can be reasonably resistant to topple and slide, and riser and counterfort bear the moment of flexure and shearing that soil pressure generates jointly, relatively
Cantilever retaining wall stress is good.
Since the structural stability of counterfort wall is ensured by the gravity to banket above wall body and wall heel slab,
And the setting main function of toe of wall plate is to enhance itself stability against overturning and substrate contact stress, therefore, to foundation soil
Body self stability, bearing capacity and resistance to deformation are more demanding, when barricade ground is in slope edges, it is understood that there may be stability of slope
Property, foundation soil body bearing capacity etc. cannot meet situation, safety it cannot be guaranteed that, then application is restricted.
Three, invention content
In order to overcome the advantage of the disadvantages mentioned above of the prior art, present invention combination stake and counterfort wall, one kind is provided
Simply, practical, the superior new supporting structure of stress performance, i.e. stake top counterfort wall supporting construction, the supporting construction pass through
Cantilever pile length is shortened, so that stake top is reduced to side slope top between the following ranges of original ground 2m, stake is in the side of the supporting and retaining system lower part soil body
While to power (sliding force or soil pressure), also lateral resistance and vertical foundation bearing are provided to help arm-type barricade to slide
Power, guarantee help arm-type barricade to stablize.Since pile length is reduced, the arm of force shortens, and torque reduces, and the moment of flexure of stake is also reduced by, to
Achieve the purpose that the lateral resistance of enhancing.Stake top counterfort wall supporting construction and construction method provided by the invention, Ji Nengzeng
Itself stability against overturning when strong slope edges or weaker foundation soil body bearing capacity, and side slope can be born and banketed to supporting construction
The transverse pressure of generation, resistance to deformation and sliding.
The present invention is technical solution used by solving its technical problem：A kind of stake top counterfort wall supporting knot is provided
Structure, including stake, connection beam, chock and counterfort wall, wherein the stake is embedded in present situation slight slope face hereinafter, the contact
Beam is located at the stake top portion and connects adjacent studs, and the chock is located at the connection beam top edge and vertical with the connection beam
Connection, the counterfort wall includes the toe of wall plate that bottom level is arranged at the top of the connection beam and rectangle wall heel slab, vertical
In the shingle nail of bottom and the triangle floor of the connection shingle nail and the wall heel slab, the shingle nail is located at described
Right at the top of binder, the wall heel slab and the floor extend to the backfill side of counterfort wall, the toe of wall plate with
The chock horizontal connection.
Stake insertion protolith (soil) the body depth and stake top height determine that general stake top height exists according to stable calculation
Present situation below ground 0.5m~2.0m；Counterfort wall height is determined according to specific geology and project situation, generally takes 4m~15m；
Floor is triangular in shape, and thickness and height are calculated according to stress size and determined；Contact beam section size foundation helps arm-type barricade lotus
It carries and determines；Chock plays the role of blocking and helps arm-type barricade horizontal sliding, and wall heel slab, shingle nail, toe of wall plate are respectively according to the soil body
Horizontal and vertical load, which calculates, determines its thickness.
In the present invention, stake, connection beam, chock, counterfort wall use reinforced concrete structure, concrete grade to be not less than
C30。
The construction method of the present invention：
According to engineering practice, operating condition and stress to stake and counterfort wall structure carry out Force Calculation, really
Determine number of steel bars, structural form, concrete grade and the quantity of stake and buried depth of stake, chock, connection beam and counterfort wall.
According to arrangement and method for construction, construction stake, connection beam, chock and counterfort wall backfill pressure after concrete strength reaches design strength
The soil body after blank wall.
Compared with prior art, the present invention having the following advantages and beneficial effect：
(1) citation form of the present invention has the advantages that easy, safe efficient, anti-slipping property is good and bearing capacity is good.
(2) being directed to counterfort wall has wall body section smaller, and sole mass is light, gives full play to soil body Gravitative Loads, gear
The strong feature of native ability, but when being used in that part of the foundation bearing capacity is poor or the place on soil-slope top, foundation capability is not
It can meet or ground is unstable, influence its application, the present invention organically combines stake and counterfort wall, and it is excellent to give full play to the two
Gesture can enhance vertical foundation bearing capacity using stake and enhance the self stability of slope foundation, be enhanced using counterfort wall
The ability for resisting transversely acting of banketing, by stake and the common stress of barricade, to greatly improve the support capacity of retaining wall.
Four, it illustrates
Fig. 1 is the concrete structure schematic cross-sectional view of the construction embodiment of the present invention；
Fig. 2 is the concrete structure vertical view of the construction embodiment of the present invention.
In figure：1- 2- floor 3- chock 4- wall heel slab 5- shingle nails
6- toe of wall plate 7- connection beams
Specific implementation mode
Detailed description furtherly is made to the present invention in the following with reference to the drawings and specific embodiments, so as to people in the art
Member understands.
The supporting construction of stake top counterfort wall shown in Fig. 1-2, the supporting construction include stake 1 and counterfort wall, stake 1
It is embedded in the soil body, the stake 1 is embedded in present situation slight slope face or less 0.5m~2.0m；Stake 1 passes through connection beam 7 along arranged in a straight line
Connection, connection beam 7 are bound by reinforcing bar and are connect with 1 reserved steel bar of stake.The counterfort wall height is 4m~15m, including rib
Plate 2, wall heel slab 4, shingle nail 5 and toe of wall plate 6, wherein shingle nail 5 and wall heel slab 4, toe of wall plate 6 are bound and are joined by reinforcing bar
7 reserved steel bar of binder is connected, and shingle nail 5 is vertical with connection beam 7, and wall heel slab 4 laterally prolongs to the backfill side of counterfort wall
It stretches.Counterfort wall horizontal sliding in order to prevent, can also the top edge of connection beam 7 formed chock 3, chock 3 with contact
Binding reinforcing bars are carried out between beam 7 and the toe of wall plate 6 of counterfort wall.The present invention, stake 1, connection beam 7, chock 3, buttress type gear
Wall connection uses reinforced concrete structure, concrete grade to be not less than C30.
Construction method example：
A. according to engineering practice, to the working environment of the stake 1, connection beam 7, chock 3 and counterfort wall structure
Calculated with stress condition, determine the number of steel bars of the stake 1, connection beam 7, chock 3 and counterfort wall, structural form,
Concrete grade and the quantity and buried depth of the stake 1；
B. construction stake 1, connection beam 7 and chock 3：Use manually digging hole or machine drilling first, after manually digging hole pore-forming
Fabrication and installation steel reinforcement cage in hole is then fixed the reinforcing bar cage hoisting made after machine drilling pore-forming, then carries out concrete and pours
It builds and to form the stake 1 and reserved steel bar is connect with the connection beam 7；Conventional maintenance makes 1 concrete strength of the stake reach
After 30%~70%, construct the connection beam 7 at the top of the stake 1；Excavation of foundation pit and foundation construction are carried out first, then
It makes 7 reinforcing bar of connection beam and itself and 1 reserved steel bar of the stake is subjected to reinforcing bar binding, installation form carries out concreting shape
At the connection beam 7, the top of the connection beam 7 be formed with reserved steel bar so as to the chock 3, wall heel slab 4, shingle nail 5, wall
Toe board 6 connects；Conventional maintenance makes 7 concrete strength of the connection beam reach the 30%~70% of design strength, described
Construction chock 3 in 7 top edge of binder makes 3 reinforcing bar of the chock and carries out reinforcing bar with 7 top reserved steel bar of the connection beam and ties up
Prick, installation form, carry out concreting and form the chock 3, the chock 3 be formed with reserved steel bar so as to the toe of wall
Plate 6 connects；
C. it constructs counterfort wall：Counterfort wall is formed in side slope leading edge, makes toe of wall plate 6, wall heel slab 4, wall first
6 reinforcing bar of toe of wall plate is then carried out reinforcing bar with the chock 3,7 reserved steel bar of connection beam and tied up by 2 reinforcing bar of panel 5 and floor
It pricks, the wall heel slab 4, shingle nail 5 and 7 reserved steel bar of the connection beam carry out reinforcing bar binding, the floor 2 and wall heel slab 4, wall
Panel 5 carries out reinforcing bar binding, then installation form, carries out concreting formation and helps arm-type barricade；
D. conventional maintenance make it is described help arm-type barricade concrete strength reach design strength 30%~70% after, backfill
The soil body after compacting wall.
In the present invention, during paying attention to drilling construction, it is accurate, reasonable that stake position and barricade will be arranged, avoid wasting, protect simultaneously
Card stake top is completely embedded with counterfort wall.
Although above-described embodiment is made that detailed description to the present invention, it is only a part of the embodiment of the present invention,
Rather than whole embodiments, people can also obtain other embodiment according to the present embodiment under the premise of without creativeness, these
Embodiment belongs to the scope of the present invention.
Claims (8)
1. a kind of stake top counterfort wall supporting construction, it is characterised in that：Including stake (1), connection beam (7), chock (3) and help
Wall type barricade, wherein the stake (1) is embedded in present situation slight slope face hereinafter, the connection beam (7) is located at the top of the stake (1) simultaneously
Adjacent studs (1) are connected, the chock (3) is located at the connection beam (7) top edge and is connect vertically with the connection beam (7),
The counterfort wall include the toe of wall plate (6) that bottom level is arranged at the top of the connection beam (7) and rectangle wall heel slab (4),
It is described perpendicular to the shingle nail (5) of bottom and the triangle floor (2) of the connection shingle nail (5) and the wall heel slab (4)
Shingle nail (5) is located at the connection beam (7) top surface, the wall heel slab (4) and the floor (2) to counterfort wall
Backfill side extend, the toe of wall plate (6) and the chock (3) horizontal connection.
2. stake top counterfort wall supporting construction as described in claim 1, it is characterised in that：The stake (1) is embedded in present situation
0.5m~2.0m below slight slope face.
3. stake top counterfort wall supporting construction as described in claim 1, it is characterised in that：The height of the counterfort wall
For 4m~15m.
4. stake top counterfort wall supporting construction as described in claim 1, it is characterised in that：The stake (1), connection beam (7),
Chock (3) and counterfort wall use reinforced concrete structure, concrete grade to be not less than C30.
5. a kind of construction method of stake top counterfort wall supporting construction as described in claim 1, which is characterized in that including with
Lower step：
A. according to engineering practice, to the stake (1), connection beam (7), chock (3) and counterfort wall structure building ring
Border and stress condition are calculated, determine the stake (1), connection beam (7), chock (3) and counterfort wall number of steel bars, structure
The quantity and buried depth of appearance formula, concrete grade and the stake (1)；
B. construction stake (1), connection beam (7) and chock (3)：Manually digging hole or machine drilling are used first, after manually digging hole pore-forming
The reinforcing bar cage hoisting made then is fixed after machine drilling pore-forming, then carries out concrete by the fabrication and installation steel reinforcement cage in hole
It pours and to form the stake (1) and reserved steel bar is connect with the connection beam (7)；Conventional maintenance makes the stake (1) strong concrete
After degree reaches the 30%~70% of design strength, in the top of the stake (1) the construction connection beam (7)；Foundation pit is carried out first
Excavation and foundation construction then make connection beam (7) reinforcing bar and itself and the stake (1) reserved steel bar are carried out reinforcing bar binding,
Installation form carries out concreting and forms the connection beam (7), the connection beam (7) be formed with reserved steel bar so as to institute
State chock (3), wall heel slab (4), shingle nail (5), toe of wall plate (6) connection；Conventional maintenance makes the connection beam (7) strong concrete
Degree reaches the 30%~70% of design strength, in the connection beam (7) top edge construction chock (3), makes the chock (3)
Reinforcing bar simultaneously carries out reinforcing bar binding, installation form with reserved steel bar at the top of the connection beam (7), and progress concreting forms described
Chock (3), the chock (3) are formed with reserved steel bar to be connect with the toe of wall plate (6)；
C. it constructs counterfort wall：Counterfort wall is formed in side slope leading edge, makes toe of wall plate (6), wall heel slab (4), wall first
Panel (5) and floor (2) reinforcing bar, then by toe of wall plate (6) reinforcing bar and the chock (3), connection beam (7) reserved steel bar
Reinforcing bar binding is carried out, the wall heel slab (4), shingle nail (5) and the connection beam (7) reserved steel bar carry out reinforcing bar binding, described
Floor (2) carries out reinforcing bar binding with wall heel slab (4), shingle nail (5), then installation form, carries out concreting formation and helps arm
Formula barricade；
D. conventional maintenance make it is described help arm-type barricade concrete strength reach design strength 30%~70% after, be backfilling and compacted
The soil body after wall.
6. the construction method of stake top counterfort wall supporting construction as claimed in claim 5, it is characterised in that：The stake (1)
It is embedded in present situation slight slope face or less 0.5m~2.0m.
7. the construction method of stake top counterfort wall supporting construction as claimed in claim 5, it is characterised in that：The buttress type
The height of barricade is 4m~15m.
8. the construction method of stake top counterfort wall supporting construction as claimed in claim 5, it is characterised in that：The stake (1),
Connection beam (7), chock (3) and counterfort wall concrete grade are not less than C30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322450.0A CN108277814A (en) | 2018-04-11 | 2018-04-11 | Stake top counterfort wall supporting construction and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322450.0A CN108277814A (en) | 2018-04-11 | 2018-04-11 | Stake top counterfort wall supporting construction and construction method |
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| Publication Number | Publication Date |
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| CN108277814A true CN108277814A (en) | 2018-07-13 |
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| CN201810322450.0A Pending CN108277814A (en) | 2018-04-11 | 2018-04-11 | Stake top counterfort wall supporting construction and construction method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881686A (en) * | 2018-12-03 | 2019-06-14 | 中铁上海工程局集团有限公司 | A kind of tall and big retaining structure of Unfavorable geology side slope |
| CN110029685A (en) * | 2019-04-16 | 2019-07-19 | 中铁建设集团有限公司 | A kind of pile drawing anchor barricade fabricated construction |
| CN110242306A (en) * | 2019-06-28 | 2019-09-17 | 四川省交通勘察设计研究院有限公司 | Open cut tunnel anti-side laminated structure and construction method |
| CN110578290A (en) * | 2019-08-14 | 2019-12-17 | 山东高速工程检测有限公司 | Abutment back backfilling structure of bridgehead and construction method thereof |
| CN111236258A (en) * | 2020-03-12 | 2020-06-05 | 广西交通科学研究院有限公司 | Prefabricated pile wall supporting structure with stiffening rib wall and unloading platform and construction method thereof |
| CN111236259A (en) * | 2020-03-12 | 2020-06-05 | 广西交通科学研究院有限公司 | Combined lattice-shaped prefabricated pile wall supporting structure and construction method thereof |
| CN111576454A (en) * | 2020-06-17 | 2020-08-25 | 云南省建设投资控股集团有限公司 | Combined protective structure for side slope retaining wall and steel pipe pile and construction method thereof |
| CN113047336A (en) * | 2021-04-20 | 2021-06-29 | 湖南省交通规划勘察设计院有限公司 | Pile bearing arm type retaining wall |
| CN113431083A (en) * | 2021-06-10 | 2021-09-24 | 中南勘察设计院集团有限公司 | Light supporting structure of pile foundation joist and construction method thereof |
| CN114108691A (en) * | 2021-12-02 | 2022-03-01 | 国能朔黄铁路发展有限责任公司 | Construction process of novel counterfort retaining wall |
| CN114233324A (en) * | 2021-12-17 | 2022-03-25 | 中铁大桥勘测设计院集团有限公司 | Tunnel structure suitable for bias working condition and construction method thereof |
| CN114790752A (en) * | 2022-05-18 | 2022-07-26 | 中建八局第三建设有限公司 | Recyclable temporary slope reinforcement device and construction method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109881686A (en) * | 2018-12-03 | 2019-06-14 | 中铁上海工程局集团有限公司 | A kind of tall and big retaining structure of Unfavorable geology side slope |
| CN110029685A (en) * | 2019-04-16 | 2019-07-19 | 中铁建设集团有限公司 | A kind of pile drawing anchor barricade fabricated construction |
| CN110242306A (en) * | 2019-06-28 | 2019-09-17 | 四川省交通勘察设计研究院有限公司 | Open cut tunnel anti-side laminated structure and construction method |
| CN110578290B (en) * | 2019-08-14 | 2024-04-05 | 山东高速工程检测有限公司 | Bridge abutment back backfill structure and construction method thereof |
| CN110578290A (en) * | 2019-08-14 | 2019-12-17 | 山东高速工程检测有限公司 | Abutment back backfilling structure of bridgehead and construction method thereof |
| CN111236258A (en) * | 2020-03-12 | 2020-06-05 | 广西交通科学研究院有限公司 | Prefabricated pile wall supporting structure with stiffening rib wall and unloading platform and construction method thereof |
| CN111236259A (en) * | 2020-03-12 | 2020-06-05 | 广西交通科学研究院有限公司 | Combined lattice-shaped prefabricated pile wall supporting structure and construction method thereof |
| CN111576454A (en) * | 2020-06-17 | 2020-08-25 | 云南省建设投资控股集团有限公司 | Combined protective structure for side slope retaining wall and steel pipe pile and construction method thereof |
| CN113047336A (en) * | 2021-04-20 | 2021-06-29 | 湖南省交通规划勘察设计院有限公司 | Pile bearing arm type retaining wall |
| CN113431083A (en) * | 2021-06-10 | 2021-09-24 | 中南勘察设计院集团有限公司 | Light supporting structure of pile foundation joist and construction method thereof |
| CN114108691A (en) * | 2021-12-02 | 2022-03-01 | 国能朔黄铁路发展有限责任公司 | Construction process of novel counterfort retaining wall |
| CN114108691B (en) * | 2021-12-02 | 2022-12-27 | 国能朔黄铁路发展有限责任公司 | Construction process of novel counterfort retaining wall |
| CN114233324A (en) * | 2021-12-17 | 2022-03-25 | 中铁大桥勘测设计院集团有限公司 | Tunnel structure suitable for bias working condition and construction method thereof |
| CN114790752A (en) * | 2022-05-18 | 2022-07-26 | 中建八局第三建设有限公司 | Recyclable temporary slope reinforcement device and construction method |
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