CN108265733A - Build-in soil body restricted type pile slab supporting structure and construction method before stake - Google Patents
Build-in soil body restricted type pile slab supporting structure and construction method before stake Download PDFInfo
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- CN108265733A CN108265733A CN201810336413.5A CN201810336413A CN108265733A CN 108265733 A CN108265733 A CN 108265733A CN 201810336413 A CN201810336413 A CN 201810336413A CN 108265733 A CN108265733 A CN 108265733A
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- 239000002689 soil Substances 0.000 title claims abstract description 107
- 238000010276 construction Methods 0.000 title claims abstract description 52
- 230000000452 restraining effect Effects 0.000 claims abstract description 122
- 230000003014 reinforcing effect Effects 0.000 claims description 49
- 229910000831 Steel Inorganic materials 0.000 claims description 38
- 239000010959 steel Substances 0.000 claims description 38
- 239000004567 concrete Substances 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 28
- 238000012423 maintenance Methods 0.000 claims description 16
- 238000005553 drilling Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 230000008602 contraction Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010412 perfusion Effects 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
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- E02D17/20—Securing of slopes or inclines
- E02D17/207—Securing of slopes or inclines with means incorporating sheet piles or piles
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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
- E02D29/0283—Retaining or protecting walls characterised by constructional features of mixed type
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- 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)
- Environmental & Geological Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The present invention discloses build-in soil body restricted type baffle supporting construction and construction method before a kind of stake.Build-in soil body restricted type pile slab supporting structure before the stake of the present invention, including cantilevered pile slab supporting structure, and it is embedded in the restraining structure before stake below the soil body, the restraining structure includes restraining plate and floor, restraining plate is with stake vertical connection and to extending in the build-in soil body before stake, floor is connected to perpendicular to restraining plate between restraining plate and stake.Build-in soil body restricted type baffle supporting construction before the stake of the present invention, plays effect of contraction to uplift of soil before fixed section stake by restraining structure, enhances resistance of soil before fixed section stake, so as to have the advantages that enhance cantilevered pile slab supporting structure lateral force resisting ability.
Description
First, technical field
The present invention relates to side slope embankment supporting construction and construction method, build-in soil body restricted type stake before more particularly to a kind of stake
Slab supporting structure and construction method.
2nd, background technology
In current side slope embankment supporting construction, cantilevered pile slab supporting structure is applied than wide.It is filled by drilling
It notes stake or artificial digging pile is arranged in a straight line, and plate resists the structure type of soil lateral pressure or side slope thrust jointly between stake.It is outstanding
Arm-type pile slab supporting structure has the following advantages：Stress is clear and definite, and design calculates simple；It is easy for construction, generally use drilling machine pore-forming
Or manually digging hole, make steel reinforcement cage installation it is fixed after, aerial part installation form, then concrete perfusion, process is simple, operation
It is convenient.
However, cantilevered pile slab supporting structure is had the following disadvantages due to the design feature of its own：When cantilevered peg board
For supporting construction when the thicker rock mass of the fixed section soil body buries depth or low rock mass strength, it is strong that stake support capacity depends on build-in Rock And Soil
Degree, backfill slope height is big, and the lateral load for acting on stake is then strong, and the pressure that lateral force generates is more than that weak build-in Rock And Soil is held
During by ability, Rock And Soil can destroy, and first appear as weak build-in Rock And Soil deformation protuberance before stake, build-in soil body resistance drop
Low, larger level and yaw displacement, sustainable development and then destruction occur for stake.Therefore weak build-in Rock And Soil is to resisting lateral lotus
The shortcomings that loading capability is low hinders the use of cantilevered pile slab supporting structure.The common weak build-in Rock And Soil of embankment side slope in mountain area
Such case, it the shortcomings that mainly have：Since anti-bending strength is poor, a large amount of reinforcing bar bending resistances are needed to configure, material use is insufficient, no
It is economical；From safety perspective, when the thicker rock mass of the cantilevered pile slab supporting structure fixed section soil body buries depth or low rock mass strength, perhaps
In the case of more, stake amount of deflection is big, and displacement at pile top is big, stake top construction of structures is influenced big or even is difficult to meet supporting requirement at all.
Due to disadvantage mentioned above, can be only applied to cantilevered pile slab supporting structure, backfill slope height is little, and fixed section is
It is used under the rock mass of higher-strength, otherwise will be uneconomical, even dangerous, limit its use scope.
3rd, invention content
Based on when embankment slope height it is big, and when place is existed compared with thick soil stratum or rock mass weakness, barricade and common outstanding
Arm-type pile slab supporting structure is difficult to competent situation.The present invention gives full play to pile slab supporting structural advantages, puts forth effort to overcome its resistance
The shortcomings that ability of lateral load is low.Put forth effort the resistance lateral load ability of raising build-in body.There are 2 kinds of modes at present：
First way since the weak build-in Rock And Soil of some strength performance indicator has existed, can pass through perfusion
After the measures such as cement mortar are handled, soil strength index is improved, improves soil capability, achievees the purpose that improve bearing capacity.
But this method improves the limited extent of soil bearing capacity.
The second way, be exactly with mole-coulomb failure criteria in classical soil mechanics, change Mohr's circle of stress with it is strong
The relationship of failure line is spent, to improve soil body bearing capacity, it is necessary to Mohr's circle of stress be made not intersect with strength failure line or tangent, more
It is safer far from strength failure line, therefore in the case of big principal stress is irreducible, it is necessary to the minimum master for improving the soil body should
Power, i.e. confining pressure, to reduce size stress difference, so as to which Mohr's circle of stress be made the soil body to be made to refer in soil strength far from strength failure line
Mark it is constant in the case of, enhance bearing capacity.
The present invention is i.e. with the principle for increasing confining pressure.A restraining structure is added using before cantilevered pile slab supporting structure
Mode, the soil body before Near Ground pushes down stake make the confining pressure increase on vertical, and uplift of soil deformation, which suffers restraints, before stake is difficult to brokenly
It is bad, so as to increase the lateral bearing capacity of the build-in soil body.Restraining structure includes the rectangular horizontal restraining plate and three of compacted fill
Angular floor to ensure that restraining plate plays effect of contraction, is closely connected, floor force modes between restraining plate and stake with floor
For, when floor is on restraining plate to be pressurized, tension when under restraining plate.
Further, in order to maximumlly improve the ability that pile slab supporting structure resists lateral load, pass through structure stress
Analysis determines that the restraining structure of the present invention is embedded in the soil body 0.5~1.5m of below ground before stake, constraint plate thickness for 0.5~
1.0m, restraining plate width take 1/4~1/3 times of a cantilever segment height, are 3~5m；Floor thickness be 0.3~1.0m, floor edge
The height of 1 short transverse of stake takes 1/2~1 times of restraining plate width, is 2m~4m, and floor width is equal with restraining plate width, is 3
~5m.
In order to ensure the present invention stake before build-in soil body restricted type baffle supporting construction structural strength, between the stake, stake
Plate, restraining plate and floor use reinforced concrete structure, and concrete grade is not less than C30.
The construction method of the present invention：Before the structure for making the present invention, according to slope project actual conditions, to the stake
The operating condition and stress of structure are calculated, and obtain structural internal force, determine plate between the stake, stake, restraining plate, floor reinforcing bar number
Amount, structural form and concrete grade and stake quantity and buried depth.According to arrangement and method for construction, plate between construction stake, stake, restraining plate,
Floor finally backfills the soil body after wall.
Compared with prior art, the present invention it has the following advantages and beneficial effect：
The present invention sets restraining structure by soil body below ground before supporting construction stake, and uplift of soil before fixed section stake is become
Shape plays effect of contraction, so as to enhance resistance of soil before fixed section stake, has the advantages that enhancing structure lateral force resisting.
Since stress performance improves, cantilevered pile slab supporting structure is made all to be not fully exerted on lateral force resisting, into
One step determines the underground buried depth and restraining structure of plate lower part and restraining structure between stake by structure stress calculating
The numberical range of structural parameters while enhancing structure lateral force resisting is ensured, simplifies construction procedure and saving is constructed into
This, avoids waste of material, reduces cost.The use scope of cantilevered pile slab supporting structure is expanded in the present inventive method,
Used in same side slope, compared with common pile slab supporting structure, cost will be greatlyd save.
4th, it illustrates
Fig. 1 is the concrete structure schematic cross-sectional view of the embodiment of the present invention 1；
Fig. 2 is the concrete structure schematic cross-sectional view of the embodiment of the present invention 2；
Fig. 3 is concrete structure vertical view in Fig. 2；
Fig. 4 is the concrete structure schematic cross-sectional view of the embodiment of the present invention 3；
Fig. 5 is the concrete structure schematic cross-sectional view of the embodiment of the present invention 4.
In figure：Plate 3- restraining plate 4- floors between 1- 2-
Specific embodiment
Make detailed description furtherly to the present invention in the following with reference to the drawings and specific embodiments, so as to people in the art
Member understands.
Embodiment 1
Build-in soil body restricted type pile slab supporting structure before stake as shown in fig. 1, it is described including cantilevered pile slab supporting structure
Cantilevered pile slab supporting structure includes plate 2 between stake 1 and stake, the stake 1 along arranged in a straight line and vertical build-in before the stake in the soil body, institute
State plate 2 between stake and connect adjacent stake 1 and form pile plate wall, between stake the below ground 0.5m from before stake of plate 2 be formed in 1 front side of stake and with stake
1 front side surface flushes, and build-in soil body restricted type pile slab supporting structure further includes the pact being embedded in before stake below the soil body before the stake
Binding structure, the restraining structure include restraining plate 3 and floor 4, and the restraining plate 3 is located at 4 top of floor, the restraining plate
3 is rectangular, and with 1 vertical connection of stake and horizontal-extending into the soil body before stake, the restraining plate 3 is embedded in below ground before stake
0.5m, the restraining plate width are 4m, and thickness 0.5m, the floor 4 is triangular in shape, and is vertically connected at 1 peace treaty of stake
Between beam plate 3, floor a height of 3m of the floor 4 along 1 short transverse of stake, thickness 0.3m, the floor 4 and 3 width phase of restraining plate
Deng for 4m.
Shown in Fig. 1 before stake build-in soil body restricted type pile slab supporting structure construction method example：
Before the structure for making the present invention, according to slope project actual conditions, operating condition to supporting construction and by
Power carries out Force Calculation, obtains structural internal force, determines plate 2 between stake 1, stake, restraining plate 3,4 number of steel bars of floor, structural form, mixes
Solidifying soil label and 1 quantity of stake and buried depth.
A. construction stake 1：According to engineering design figure, in design position discharge hole position, first using manually digging hole or machinery
Drilling, after manually digging hole pore-forming in hole fabrication and installation steel reinforcement cage, the reinforcing bar cage hoisting that will then make after machine drilling pore-forming
Fixed, ground installation form then carries out concreting, forms the stake 1；And the stake 1 is formed with reserved steel bar, with
Just plate 2, restraining plate 3 and floor 4 between the stake are connected；When pouring, concrete free-falling height is no more than 2m；
B. plate 2 between construction stake：After the 1 concrete conventional maintenance of stake reaches 2MPa to intensity, can plate 2 between construction stake, it is first
First soil body grooving to soil body below ground 4m, then makes 2 reinforcing bar of plate between the stake before stake, by 2 reinforcing bar of plate between the stake with
1 reserved steel bar of stake carries out reinforcing bar binding, then installation form carries out concreting and forms plate 2 between the stake；
C. construction restraining plate 3, floor 4：After 2 concrete conventional maintenance of plate between the stake reaches 2MPa to intensity, construction
Floor 4, floor 4 are designed as triangle, floor a height of 3m of the floor 4 along 1 short transverse of stake, and floor width is 4m, and thickness is
0.3m makes 4 reinforcing bar of floor and 4 reinforcing bar of floor and 1 reserved steel bar of stake is carried out reinforcing bar binding, then first
Then installation form carries out concreting and forms the floor 4, after conventional maintenance reaches 2MPa to concrete strength, returns
Fill out in slot the soil body to and 4 top of the floor and be compacted；Floor 4 is formed with reserved steel bar and is tied up to carry out reinforcing bar with restraining plate 3
It pricks；It constructs again the restraining plate 3, restraining plate 3 is designed as rectangle, and 3 width of restraining plate is 4m, and thickness 0.5m makes the constraint
Itself and the stake 1 and 4 reserved steel bar of floor are simultaneously carried out reinforcing bar binding by 3 reinforcing bar of plate, and then installation form carries out concreting
Form restraining plate 3；After conventional maintenance reaches 2MPa to concrete strength, backfill body and it is compacted on the restraining plate 3；
D. the soil body after last backfill pile plate wall.
Embodiment 2
Build-in soil body restricted type pile slab supporting structure before stake as shown in figures 2-3, including cantilevered pile slab supporting structure, institute
State cantilevered pile slab supporting structure and include plate 2 between stake 1 and stake, the stake 1 along arranged in a straight line and vertical build-in before the stake in the soil body,
Plate 2 connects adjacent stake 1 and forms pile plate wall between the stake, between stake the below ground 1m from before stake of plate 2 be formed in 1 front side of stake and with stake
1 front side surface flushes, and build-in soil body restricted type pile slab supporting structure further includes the pact being embedded in before stake below the soil body before the stake
Binding structure, the restraining structure include restraining plate 3 and floor 4, and the restraining plate 3 is located at 4 lower section of floor, the floor 4
Below ground 0.5m before stake is placed in, the floor 4 is triangular in shape, and the floor 4 is a height of along the floor of 1 short transverse of stake
2.5m, thickness 0.5m, and be connected between the stake 1 and restraining plate 3, the restraining plate 3 is in rectangular layout, with the stake 1
Vertical connection is simultaneously horizontal-extending into the soil body before stake, and 3 width of restraining plate is 5m, thickness 0.8m, the floor 4 and constraint
3 width of plate is equal, is 5m.
Shown in Fig. 2-3 before stake build-in soil body restricted type pile slab supporting structure construction method example：
Before the structure for making the present invention, according to slope project actual conditions, operating condition to supporting construction and by
Power carries out Force Calculation, obtains structural internal force, determines plate 2 between stake 1, stake, restraining plate 3,4 number of steel bars of floor, structural form, mixes
Solidifying soil label and 1 quantity of stake and buried depth.
A. construction stake 1：According to engineering design figure, in design position discharge hole position, first using manually digging hole or machinery
Drilling, after manually digging hole pore-forming in hole fabrication and installation steel reinforcement cage, the reinforcing bar cage hoisting that will then make after machine drilling pore-forming
Fixed, ground installation form then carries out concreting, forms the stake 1；And the stake 1 is formed with reserved steel bar, with
Just plate 2, restraining plate 3 and floor 4 between the stake are connected；When pouring, concrete free-falling height cannot surpass 2m；
B. plate 2 between construction stake：It is completed in 1 one-piece casting of stake, it, can after conventional maintenance reaches 2MPa to concrete strength
Plate 2 between construction stake, first before stake soil body grooving 2 reinforcing bar of plate between the stake is then made, by institute to soil body below ground 3.8m
It states 1 reserved steel bar of stake and is stripped out 2 reinforcing bar of the plate progress reinforcing bar binding between the stake from the stake 1, then installation form is mixed
Solidifying soil pours to form plate 2 between the stake, and plate 2 is poured with the stake 1 and is integrated between the stake of formation；
C. construction restraining plate 3, floor 4：First construction restraining plate 3, the restraining plate 3 are designed as rectangle, and the restraining plate 3 is wide
It spends for 5m, thickness 0.8m, make 3 reinforcing bar of restraining plate first and carries out reinforcing bar binding with 1 reserved steel bar of stake, connect
Installation form, concreting is carried out and forms the restraining plate 3, after concrete conventional maintenance intensity reaches 2MPa, backfill
It the soil body and is compacted in slot；Restraining plate 3 is formed with reserved steel bar to carry out reinforcing bar binding with floor 4；It constructs again the floor 4,
Floor 4 is designed as triangle, floor a height of 2.5m of the floor 4 along 1 short transverse of stake, and 4 width of floor is 5m,
Thickness is 0.5m, makes 4 reinforcing bar of floor and carries out reinforcing bar binding, Ran Houan with the stake 1 and 3 reserved steel bar of restraining plate
Decking carries out concreting and forms floor 4；After conventional maintenance reaches 2MPa to concrete strength, finally in the floor 4
Upper backfill body is simultaneously compacted；
D. the soil body after last backfill pile plate wall.
Embodiment 3
Build-in soil body restricted type pile slab supporting structure before stake shown in Fig. 4 is described outstanding including cantilevered pile slab supporting structure
Arm-type pile slab supporting structure includes plate 2 between stake 1 and stake, the stake 1 along arranged in a straight line and vertical build-in before the stake in the soil body, between stake
The below ground 0.5m from before stake of plate 2 is formed in the front side of stake 1 and is flushed with 1 front side surface of stake, and between the stake plate 2 connect it is adjacent
Stake 1 form pile plate wall, build-in soil body restricted type pile slab supporting structure, which further includes, before the stake is embedded in before stake below the soil body
Restraining structure, the restraining structure include restraining plate 3 and floor 4, and the restraining plate 3 is located at 4 top of floor, the constraint
Plate 3 is with 1 vertical connection of stake and horizontal-extending in rectangular layout into the soil body before stake, and the restraining plate 3 is placed in the preceding ground of stake
Following 1.5m, the restraining plate width are 4m, and thickness 1m, the floor 4 is triangular in shape, and is vertically connected at 1 He of stake
Between restraining plate 3, floor a height of 4m of the floor 4 along 1 short transverse of stake, thickness 1m, the floor 4 and 3 width phase of restraining plate
Deng for 4m.
Shown in Fig. 4 before stake build-in soil body restricted type pile slab supporting structure construction method example：
Before the structure for making the present invention, according to slope project actual conditions, operating condition to supporting construction and by
Power carries out Force Calculation, obtains structural internal force, determines plate 2 between stake 1, stake, restraining plate 3,4 number of steel bars of floor, structural form, mixes
Solidifying soil label and 1 quantity of stake and buried depth.
A. construction stake 1：According to engineering design figure, in design position discharge hole position, first using manually digging hole or machinery
Drilling, after manually digging hole pore-forming in hole fabrication and installation steel reinforcement cage, the reinforcing bar cage hoisting that will then make after machine drilling pore-forming
Fixed, ground installation form then carries out concreting, forms the stake 1；And 1 reserved steel bar of stake, to connect
Plate 2, restraining plate 3 and floor 4 between the stake；When pouring, concrete free-falling height cannot surpass 2m；
B. plate 2 between construction stake：It is completed in 1 one-piece casting of stake, it, can after conventional maintenance reaches 2MPa to concrete strength
Plate 2 between construction stake, first before stake soil body grooving 2 reinforcing bar of plate between the stake is then made, by institute to soil body below ground 6.5m
It states 1 reserved steel bar of stake and is stripped out 2 reinforcing bar of the plate progress reinforcing bar binding between the stake from the stake 1, then installation form is mixed
Solidifying soil pours to form plate 2 between the stake, and plate 2 is poured with the stake 1 and is integrated between the stake of formation；
C. construction restraining plate 3, floor 4：It first constructs floor 4, floor 4 is designed as triangle, and floor is along 1 short transverse of stake
The a height of 4m of floor, floor width be 4m, thickness 1m, make first 4 reinforcing bar of floor and with 1 reserved steel bar of stake into
Row reinforcing bar is bound, then installation form, is carried out concreting and is formed the floor 4, conventional maintenance to concrete strength reaches
After 2MPa, finally backfill the soil body in slot and be compacted；Floor 4 is formed with reserved steel bar to carry out reinforcing bar binding with restraining plate 3；Again
It constructs the restraining plate 3, restraining plate 3 is designed as rectangle, and 3 width of restraining plate is 4m, thickness 1m, makes 3 steel of restraining plate
Muscle and the connection stake 1 and 4 reserved steel bar of floor, then installation form progress concreting form restraining plate 3；It is conventional to support
After shield reaches 2MPa to concrete strength, finally backfill and it is compacted on the restraining plate 3；
D. the soil body after last backfill pile plate wall.
Embodiment 4
Build-in soil body restricted type pile slab supporting structure before stake shown in Fig. 5 is described outstanding including cantilevered pile slab supporting structure
Arm-type pile slab supporting structure includes plate 2 between stake 1 and stake, the stake 1 along arranged in a straight line and vertical build-in before the stake in the soil body, between stake
The below ground 0.8m from before stake of plate 2 is formed in 1 front side of stake and is flushed with 1 front side surface of stake, and plate 2 connects adjacent stake between the stake
1 forms pile plate wall, and build-in soil body restricted type pile slab supporting structure further includes the constraint being embedded in before stake below the soil body before the stake
Structure, the restraining structure include restraining plate 3 and floor 4, and the restraining plate 3 is located at 4 lower section of floor, and the floor 4 is put
The below ground 1m before stake, the floor 4 is triangular in shape, floor a height of 2m and company of the floor 4 along 1 short transverse of stake
It is connected between the stake 1 and restraining plate 3, thickness 0.5m, the restraining plate 3 and 1 vertical connection of stake and the soil body before stake
In it is horizontal-extending in rectangular layout, 3 width of restraining plate be 3m, thickness 0.5m, the floor 4 and 3 width phase of restraining plate
Deng for 3m.
Shown in Fig. 5 before stake build-in soil body restricted type pile slab supporting structure construction method example：
Before the structure for making the present invention, according to slope project actual conditions, operating condition to supporting construction and by
Power carries out Force Calculation, obtains structural internal force, determines plate 2 between stake 1, stake, restraining plate 3,4 number of steel bars of floor, structural form, mixes
Solidifying soil label and 1 quantity of stake and buried depth.
A. construction stake 1：According to engineering design figure, in design position discharge hole position, first using manually digging hole or machinery
Drilling, after manually digging hole pore-forming in hole fabrication and installation steel reinforcement cage, the reinforcing bar cage hoisting that will then make after machine drilling pore-forming
Fixed, ground installation form then carries out concreting, forms the stake 1；And 1 reserved steel bar of stake, to connect
Plate 2, restraining plate 3 and floor 4 between the stake；When pouring, concrete free-falling height cannot surpass 2m；
B. plate 2 between construction stake：It is completed in 1 one-piece casting of stake, it, can after conventional maintenance reaches 2MPa to concrete strength
Plate 2 between construction stake, first before stake soil body grooving 2 reinforcing bar of plate between the stake is then made, by institute to soil body below ground 3.5m
It states 1 reserved steel bar of stake and is stripped out 2 reinforcing bar of the plate progress reinforcing bar binding between the stake from the stake 1, then installation form is mixed
Solidifying soil pours to form plate 2 between the stake, and plate 2 is poured with the stake 1 and is integrated between the stake of formation；
C. construction restraining plate 3, floor 4：First construction restraining plate 3, the restraining plate 3 are designed as rectangle, and the restraining plate 3 is wide
It spends for 3m, thickness 0.5m, make 3 reinforcing bar of restraining plate first and carries out reinforcing bar binding with 1 reserved steel bar of stake, connect
Installation form, concreting is then carried out and forms the restraining plate 3, after conventional maintenance reaches 2MPa to concrete strength,
It finally backfills the soil body in slot and is compacted；Restraining plate 3 is formed with reserved steel bar to carry out reinforcing bar binding with floor 4；Construct institute again
State floor 4, floor 4 is designed as triangle, floor a height of 2m of the floor 4 along 1 short transverse of stake, and the floor 4 is wide
It spends for 3m, thickness 0.5m, makes 4 reinforcing bar of floor and carry out reinforcing bar with the stake 1 and 3 reserved steel bar of restraining plate and tie up
It pricks, then installation form carries out concreting and forms floor 4；After conventional maintenance reaches 2MPa to concrete strength, finally exist
It backfill and is compacted on the floor 4；
D. the soil body after last backfill pile plate wall.
Although above-described embodiment is made that the present invention detailed description, it is only 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 (9)
1. build-in soil body restricted type pile slab supporting structure before a kind of stake, including cantilevered pile slab supporting structure, the cantilevered stake
Slab supporting structure includes stake (1) plate (2) between stake, and plate (2) is even before the stake in the soil body, between the stake for the vertical build-in of the stake (1)
It connects the adjacent stake (1) and forms pile plate wall, it is characterised in that：Between the stake plate (2) on front side of the stake (1) or rear side simultaneously
It is flushed with the stake (1) front side surface or rear side surface, build-in soil body restricted type pile slab supporting structure, which further includes, before the stake buries
The restraining structure below the soil body before stake is placed in, the restraining structure includes restraining plate (3) and floor (4), and the restraining plate (3) is in
Rectangle, with the stake (1) vertical connection and horizontal-extending into the soil body before stake, the floor (4) is triangular in shape, and vertical connection
Between the stake (1) and restraining plate (3), wherein the restraining plate (3) is positioned at the floor (4) top or the restraining plate
(3) below the floor (4).
2. build-in soil body restricted type pile slab supporting structure before stake as described in claim 1, it is characterised in that：Plate between the stake
(2) lower part is embedded in soil body below ground 0.5m~1m before stake, and the restraining structure is embedded in soil body below ground 0.5m before stake
~1.5m, restraining plate (3) width are 1/4~1/3 times of the stake (1) cantilever segment height, and the floor (4) is along the stake
(1) height of short transverse is 1/2~1 times of the restraining plate (3) width.
3. build-in soil body restricted type pile slab supporting structure before stake as claimed in claim 2, it is characterised in that：The restraining plate
(3) width is 3m~5m, thickness is 0.5m~1m, and floor (4) width is 3m~5m, be highly 2m~4m, thickness is
0.3m~1m.
4. build-in soil body restricted type pile slab supporting structure before stake as claimed in claim 3, it is characterised in that：The stake (1), stake
Between plate (2), restraining plate (3) and floor (4) using reinforced concrete structure, concrete grade is not less than C30.
5. the construction method of build-in soil body restricted type pile slab supporting structure, specifically includes before a kind of stake as described in claim 1
Following steps：
A. construction stake (1)：First using manually digging hole or machine drilling, after manually digging hole pore-forming in hole fabrication and installation reinforcing bar
Cage is then fixed the reinforcing bar cage hoisting made after machine drilling pore-forming, and ground installation form then carries out concreting,
Form the stake (1)；And the stake (1) is formed with reserved steel bar, so as to connect plate (2) between the stake, restraining plate (3) and
Floor (4)；
B. plate (2) between construction stake：After stake (1) conventional maintenance reaches 2MPa to concrete strength, plate between the stake of constructing
(2), soil body grooving to below ground precalculated position, then makes plate (2) reinforcing bar between the stake, then by described in first before stake
Plate (2) reinforcing bar and the stake (1) reserved steel bar carry out reinforcing bar binding between stake, then installation form carry out concreting formed it is described
Plate (2) between stake；
C. it constructs restraining structure：After plate (2) concrete conventional maintenance reaches 2MPa to intensity between the stake, the about binding of constructing
Structure；
C1. when the restraining plate (3) is above the floor (4), the floor (4) reinforcing bar is made first and by itself and institute
It states stake (1) reserved steel bar and carries out reinforcing bar binding, then installation form, carry out concreting and form the floor (4), it is conventional to support
After shield reaches 2MPa to concrete strength, backfill and the soil body and be compacted in slot, the floor (4) is formed with reserved steel bar, so as to
Restraining plate (3) connection；Then construct the restraining plate (3), make first the restraining plate (3) reinforcing bar and by its with it is described
Stake (1) and floor (4) reserved steel bar carries out reinforcing bar binding, and then installation form carries out concreting and forms the restraining plate
(3)；After conventional maintenance reaches 2MPa to concrete strength, backfill and it is compacted on the restraining plate (3)；
C2. when the restraining plate (3) is below the floor (4), make first the restraining plate (3) reinforcing bar and by its with
Stake (1) reserved steel bar carries out reinforcing bar binding, then installation form, carries out concreting and forms the restraining plate (3), often
After rule maintenance reaches 2MPa to concrete strength, backfilling the soil body in slot and be compacted, the restraining plate (3) is formed with reserved steel bar,
To be connect with the floor (4)；Then construct the floor (4), make first the floor (4) reinforcing bar and by its with it is described
Stake (1) and restraining plate (3) reserved steel bar binding, then installation form progress concreting forms the floor (4), conventional to support
After shield reaches 2MPa to concrete strength, backfill and it is compacted on the floor (4)；
D. the soil body after the pile plate wall is finally backfilled.
6. the construction method of build-in soil body restricted type pile slab supporting structure before stake as claimed in claim 5, it is characterised in that：Institute
Plate (2) lower part is embedded in soil body below ground 0.5m~1m before stake between stating stake, and the restraining structure is embedded in soil body ground before stake
Following 0.5m~1.5m, restraining plate (3) width are 1/4~1/3 times of the stake (1) cantilever segment height, the floor (4)
Height along the stake (1) short transverse is 1/2~1 times of the restraining plate (3) width.
7. the construction method of build-in soil body restricted type pile slab supporting structure before stake as claimed in claim 6, it is characterised in that：Institute
State that restraining plate (3) width is 3m~5m, thickness is 0.5m~1m, floor (4) width is 3m~5m, be highly 2m~4m,
Thickness is 0.3m~1m.
8. the construction method of build-in soil body restricted type pile slab supporting structure before stake as claimed in claim 7, it is characterised in that：Institute
It states plate (2) between stake (1), stake, restraining plate (3) and the concrete grade of floor (4) and is not less than C30.
9. the construction method of build-in soil body restricted type pile slab supporting structure before stake as claimed in claim 8, it is characterised in that：It pours
When building, concrete free-falling height is no more than 2m.
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Application publication date: 20180710 |