CN108086352A - A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure - Google Patents
A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure Download PDFInfo
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- CN108086352A CN108086352A CN201810102513.1A CN201810102513A CN108086352A CN 108086352 A CN108086352 A CN 108086352A CN 201810102513 A CN201810102513 A CN 201810102513A CN 108086352 A CN108086352 A CN 108086352A
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- 239000011435 rock Substances 0.000 title claims abstract description 42
- 230000002787 reinforcement Effects 0.000 claims abstract description 32
- 239000002689 soil Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract 2
- 238000009412 basement excavation Methods 0.000 claims description 21
- 210000000481 breast Anatomy 0.000 claims description 10
- 238000001727 in vivo Methods 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 38
- 239000000758 substrate Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000004873 anchoring Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 208000036119 Frailty Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 206010038743 Restlessness Diseases 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000007493 shaping process Methods 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
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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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
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0233—Retaining or protecting walls comprising retention means in the backfill the retention means being anchors
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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
- E02D29/0225—Retaining or protecting walls comprising retention means in the backfill
- E02D29/0241—Retaining or protecting walls comprising retention means in the backfill the retention means being reinforced earth elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/02—Retaining or protecting walls
- E02D29/0258—Retaining or protecting walls characterised by constructional features
- E02D29/0275—Retaining or protecting walls characterised by constructional features cast in situ
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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
- E02D5/74—Means for anchoring structural elements or bulkheads
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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
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/80—Ground anchors
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1628—Shapes rectangular
- E02D2200/1635—Shapes rectangular made from single element
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
- E02D2300/0007—PVC
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
- E02D2300/0034—Steel; Iron in wire form
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0084—Geogrids
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention belongs to highway subgrade construction technical fields, a kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure are specifically disclosed, including friction pile cantilever segment, antiskid pile foundation, foundation anchor system, substrate footing foundation backfill soil body TGXG system after stake.The cantilever segment is designed as rectangle and the rectangle with the edge of a wing as the case may be.The foundation anchor system is divided into horizontal anchor rod system and vertical anchor rod system, using the HRB400 reinforcement fabrications of a diameter of Φ 32.Present invention decreases difficulty of construction, the influences for saving project cost, shortening the duration, reducing Engineering.
Description
Technical field
The present invention relates to highway Steep Slope Embankment supporting construction more particularly to highway hard rock Steep Slope Embankment anchor rod foundation antiskids
Stake, belongs to highway subgrade construction technical field.
Background technology
In recent years fast-developing highway engineering construction, makes Southwestern China mountain highway net progressively tend to be perfect, mountain highway
Construction should avoid high embankment as far as possible, first, meet using reducing project cost on the premise of function, but high embankment
It is serious to environmental disruption, especially it would become hard to recover behind the region of ecological environment frailty, destruction.During highway construction,
Mostly reduce the coverage of high embankment with retaining wall combining form using stake, the form of retaining wall mainly has pile plate wall, gravity
Formula retaining wall, soil nail wall, the form of stake mainly have a rectangular section artificial digging pile, circular cross-section cast-in-situ bored pile, retaining wall with
Anchor pile is combined, and can play good closing slope effect.The anchorage depth of anchor pile should according to cantilever segment length, thrust size and
Stake sectional dimension determines that the anchoring section of traditional anchor pile must be designed into certain depth and just can guarantee soil body stability after stake.
But when anchoring section is located in hard rock stratum, the excavation difficulty of anchoring section will greatly increase, especially the hard of good integrity
Rock, long construction period directly contribute the rise of engineering project overhead cost.The general lateral slope of ground in hard rock location is very steep, excavation
Rock And Soil outward transport is difficult, is mostly arbitrarily abandoned the hillside near stake mouth, exerted a certain influence to environment.It is steep to be limited to hard rock
Slope embankment friction pile difficulty of construction is big, project cost is high and is influenced caused by environment big so that mountain highway high embankment is set
Meter and construction are obstructed again and again, and often high embankment is also the controlling paragraph of highway subgrade construction, it can be seen that, hard rock
The design form of section friction pile anchoring section becomes the research emphasis and difficult point of Subgrade in Mountain Area engineering field.
In consideration of it, domestic and foreign scholars have carried out substantial amounts of research work regarding to the issue above, how to meet design requirement
In the range of shorten anchoring depth become research emphasis.202787236 U of patent CN disclose a kind of new friction pile,
It is mainly characterized in that the bottom of friction pile extends vertically, forms horizontal anchoring section, a sectional dimension can be reduced, improve friction pile
Can, but transversary is even more to be difficult to excavate in hard rock, and the new friction pile disclosed in this patent is only applicable to soil-slope.
107447777 A of patent CN disclose point anchor anti-sliding piled barricade in a kind of hole, and the form of anchor cable is added by cantilever segment, can be contracted
Short anchoring section depth, but anchoring section still needs certain depth could meet stability requirement, especially in steep slope subgrade
Section, in order to which Rock And Soil on the outside of stake is made to reach certain thickness, it is necessary to increase the setting of anchoring section.
In conclusion to avoid the high embankment location embankment welding of hard rock, it is to receive well to set retaining wall between piles
Domatic formula, but the excavation of friction pile anchoring section is answered that difficulty of construction is big, project cost is high, therefore, how rationally to shorten anchoring section
It is arranged to for design challenges urgently to be resolved hurrily.
The content of the invention
Goal of the invention：Excavate that difficulty is big, project cost is high not during to overcome existing friction pile anchoring section in hard rock
Foot improves the design form of friction pile, and the present invention provides highway hard rock Steep Slope Embankment anchor rod foundation anti-slide pile structure, anchorings
Section is substantially shorter, form is simple, short construction period, effect on environment are small, can efficiently solve highway hard rock abrupt slope road
The problem of dike friction pile stability and big difficulty of construction is highway engineering field hard rock Steep Slope Embankment support form and friction pile
The innovation of design form.
Technical solution：To achieve the above object, technical scheme is as follows：
Highway hard rock Steep Slope Embankment anchor rod foundation anti-slide pile structure of the present invention, including：Friction pile cantilever segment, friction pile
Basis, foundation anchor system, substrate footing foundation backfill soil body TGXG system after stake.Cantilever segment is as the case may be
It is designed as rectangle（Suitable for gravity retaining wall between stake and inter-pile soil nail wall）With the rectangle with the edge of a wing（Suitable for pile plate wall）.It is anti-
Sliding pile basis should synchronously be poured with pile body, and the concrete grade of use is identical with pile body, and basis and pile concrete label be not low
In C30.Foundation anchor system is divided into horizontal anchor rod system and vertical anchor rod system, using the HRB400 reinforcing bar systems of a diameter of Φ 32
Make.Footing foundation palpus hand excavation, ensures the smooth of step surface as far as possible.Soil body TGXG system is backfilled after stake using high
Density PVC direction earthwork grille, breadth are not less than 5.0m, 50~80mm of mesh diameter.
The construction method of highway hard rock Steep Slope Embankment anchor rod foundation friction pile of the present invention, concretely comprises the following steps：
1. surveying and locating.According to the definite friction pile accurate location in design coordinate scene；2. the table of friction pile construction area is removed in levelling of the land
Layer soil according to wide, the high excavation slope platform of design step, flattens antiskid pile foundation top surface platform, indicates four of friction pile
Corner location is in order to pile foundation of accurately constructing.The horizontal distance of basic top surface platform outer edge and line of slope is not less than 2.0m,
Chipping is answered at platform outer edge to slope surface, and outside 4% weathering is set；3. chisel sets basis.Manually using pneumatic pick or other are small
Type rock drilling machine excavation foundation forbids explosion, the in vivo stepped forms of foundation excavation Cheng Xiangshan, width height ratio of steps 1.0:1.0.
Footing step horizontal width 0.5m, afterbody berm width are not less than 1.0m, and platform classification must not drop below 3 grades；4. it constructs
Vertical anchor rod system.According to friction pile arrangement of reinforcement, main reinforcement branch position is determined, corresponding main reinforcement position applies vertical armature boring,
Boring direction is vertical, drillable length 4.15m.It constructs in time after pore-forming anchor pole, anchor pole exposure length is not less than 2.0m, in order to
It is welded with pile body main reinforcement；5. the horizontal anchoring-bolt system of construction.The horizontal vertical spacing 1.0m of anchor pole, lateral arrangement two arrange, drillable length
12.15m, anchor pole direction and horizontal direction angle are 15 °.After pile body main reinforcement is welded, by horizontal termination point of anchor rod and pile body main reinforcement
Welding；6. molding and casting concrete.According to pile body sectional dimension molding, concrete grade is not less than C30, and pile body must with basis
Palpus one-time-concreting shaping, forbids to form horizontal construction joint, such as be poured because construction condition must be segmented, horizontal in two-step pouring
The short muscle of cloth is reinforced at interface；7. breast boards is hung after pile strength reaches the 80% of design strength and backfills the soil body after wall,
Backfill soil body wide bed TGXG, spacing 0.6m.
Highway hard rock Steep Slope Embankment anchor rod foundation friction pile of the present invention, its main feature is that：It is replaced with anchor rod foundation anti-
Sliding pile anchoring section, anchor rod foundation horizontal cross section dimension are determined according to friction pile sectional dimension.Basis passes through horizontal direction anchor pole system
System and vertical direction anchor rod system increase bending resistance, anti-pull-out property.Hard rock base surface chisel is set as inside stepped form, to increase
The anti-slipping property energy of strong antiskid pile foundation.Laterally, vertical termination point of anchor rod and pile body main reinforcement are welded, so that pile body after casting concrete
One is formed with massif.
The beneficial effects of the invention are as follows：1. reducing difficulty of construction, stake holes is excavated in hard rock location must use explosion, difficult
To control construction quality, and engineering risk is higher.The present invention only needs artificial chisel to set friction pile basic platform, reduces construction
Difficulty and risk are more advantageous to control construction quality；2. saving project cost, intensity of many hard rocks itself is high in nature
It is traditional to cause economic waste with excavating stake holes in hard rock in general concrete strength.The present invention makes full use of hard
Pile body and hard rock mass are linked as entirety by anchor pole, save project cost by rock condition；3. the duration is shortened, since chisel is set
Friction pile square foundation amount is small, is not influenced between stake and stake, and excavation by troughs is not required, and shortens the duration, while also saves engineering
Indirect expense；4. reducing the influence of Engineering, the rock mass side's amount excavated needed for the present invention is small, avoid abandon quarrel huddle unrest
Phenomenon is put, influence of the engineering to natural environment is reduced from source.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 excavates schematic diagram for hard rock slope.
Fig. 3 is friction pile foundation excavation schematic diagram.
Vertical and horizontal anchor pole schematic diagram based on Fig. 4.
Schematic diagram after the completion of Fig. 5 pours for pile body and basis.
Fig. 6 is hanging plate and backfills soil body schematic diagram after wall.
Figure label：1 friction pile cantilever segment, 2 antiskid pile foundation top surface platforms, 3 antiskid pile foundations, 4 antiskid pile foundations
Plinth step, 5 vertical anchor rod systems, 6 horizontal anchor rod systems, 7 hard rock slope excavation lines, 8 TGXG systems, 9 friction piles
Cantilever segment main reinforcement, 10 hillside, 11 breast boards.
Specific embodiment
Embodiment 1
Highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure, including：After excavation slope step 7, chisel sets friction pile
Basic top surface platform 2.After determining four corner locations of friction pile, artificial chisel sets friction pile footing step 4.Construction anchor rod system,
Anchor rod system includes vertical anchor rod system 5 and horizontal anchor rod system 6.Antiskid pile foundation 3 and friction pile cantilever segment 1 are poured, treats stake
When body intensity reaches the 80% of design load, hang breast boards and backfill the soil body after stake, while be laid with TGXG system 8.
Embodiment 2
The construction method of highway hard rock Steep Slope Embankment anchor rod foundation friction pile, concretely comprises the following steps：1. surveying and locating.According to setting
Count the definite friction pile accurate location in coordinate scene；2. the topsoil of friction pile construction area is removed in levelling of the land, according to design step
Wide, high excavation slope platform, flatten antiskid pile foundation top surface platform, indicate four corner locations of friction pile in order to accurate
Construction pile foundation.The horizontal distance of basic top surface platform outer edge and line of slope is not less than 2.0m, at platform outer edge to slope surface
Chipping is answered, and outside 4% weathering is set；3. chisel sets basis.Base is manually excavated using pneumatic pick or other gadding machine devices
Plinth forbids explosion, the in vivo stepped forms of foundation excavation Cheng Xiangshan, width height ratio of steps 1.0:1.0.Footing step horizontal width
0.5m, afterbody berm width are not less than 1.0m, and platform classification must not drop below 3 grades；4. vertical anchor rod system of constructing.According to
Friction pile arrangement of reinforcement determines main reinforcement branch position, and corresponding main reinforcement position applies vertical armature boring, and boring direction is vertical, is bored
Hole length 4.15m.It constructs in time after pore-forming anchor pole, anchor pole exposure length is not less than 2.0m, in order to be welded with pile body main reinforcement；⑤
The horizontal anchoring-bolt system of construction.The horizontal vertical spacing 1.0m of anchor pole, lateral arrangement two arrange, drillable length 12.15m, anchor pole direction with
Horizontal direction angle is 15 °.After pile body main reinforcement is welded, horizontal termination point of anchor rod and pile body main reinforcement are welded；6. molding simultaneously pours
Concrete.According to pile body sectional dimension molding, concrete grade is not less than C30, and pile body is molded with the necessary one-time-concreting in basis, sternly
Taboo form horizontal construction joint, such as poured because construction condition must be segmented, at the horizontal interface of two-step pouring the short muscle of cloth into
Row is reinforced；7. breast boards is hung after pile strength reaches the 80% of design strength and backfills the soil body after wall, backfill soil body wide bed geotechnique
Grid, spacing 0.6m.
Embodiment 3
Present invention reinforced earth back-pressure closing supporting construction as shown in Figure 1, after hard rock slope excavation line 7, chisel sets antiskid pile foundation
Plinth top surface platform 2.After determining four corner locations of friction pile, artificial chisel sets friction pile footing step 4.Construction anchor rod system, anchor
Lever system includes vertical anchor rod system 5 and horizontal anchor rod system 6.The anchoring section of traditional friction pile is replaced with anchor rod foundation, it is ensured that
The excavation of anchoring section is reduced while antiskid stake body is stablized, difficulty of construction is reduced, saves project cost, while also reduce
Destruction to ecological environment.Pile body and basis 1 are poured, when pile strength reaches the 80% of design load, breast boards is hung and backfills
The soil body after stake, while it is laid with TGXG system 8.TGXG reduces the soil pressure for directly acting on pile body, is conducive to carry
The stability of high supporting construction.
Certain mountainous area highway roadbed is located at Steep Slope Embankment location, lateral slope of ground 1:0.75, this section of path length is 219m,
Stratum is limestone, and rate of decay is weaker, and slope table coating is thin, many places basement rock exposure.If with bridge or tunnel by the way that engineering is made
Valency is high, and the construction period is long.Designing scheme is with roadbed semi-filling and semi-excavating by setting pile plate wall supporting and retaining system on the outside of roadbed.Anchor pile is using this
Invention anchor rod foundation Anti-slide Pile Retaining Structure, is as follows：
（1）Surveying and locating.According to the definite friction pile accurate location in design coordinate scene；
（2）Levelling of the land.The topsoil of friction pile construction area is removed, the massif side slope within embankment is excavated according to design requirement,
Platform wide 2m, high 1.3m flatten antiskid pile foundation top surface platform, and stake sectional dimension is 1.75m × 2.5m, indicates the four of friction pile
A corner location is in order to pile foundation of accurately constructing.The horizontal distance of basic top surface platform outer edge and line of slope is not less than
2.0m, chipping at platform outer edge to slope surface, and outside 4% weathering is set；
（3）Chisel sets basis.Manually using pneumatic pick excavation foundation, the in vivo stepped forms of foundation excavation Cheng Xiangshan, width height ratio of steps
For 1.0:1.0.Footing step horizontal width 0.5m, afterbody berm width are 1.25m, and platform is divided into 3 grades；
（4）It constructs vertical anchor rod system.According to friction pile arrangement of reinforcement, main reinforcement branch position is determined, corresponding main reinforcement position applies perpendicular
To armature boring, boring direction is vertical, drillable length 4.15m.It constructs in time after pore-forming anchor pole, anchor pole exposure length is not less than
2.0m, in order to be welded with pile body main reinforcement；
（5）The horizontal anchoring-bolt system of construction.The horizontal vertical spacing 1.0m of anchor pole, lateral arrangement two arrange, drillable length 12.15m, anchor pole
Direction and horizontal direction angle are 15 °.After pile body main reinforcement is bound, horizontal termination point of anchor rod and pile body main reinforcement are welded；
（6）Molding and casting concrete.According to pile body sectional dimension molding, concrete grade C35, pile body is once poured with basis
Build up type；
（7）Breast boards is hung after pile strength reaches the 80% of design strength and backfills the soil body after wall, backfills soil body wide bed geotechnique's lattice
Grid, spacing 0.6m.Thus the construction of anchor rod foundation friction pile retaining structure is completed.
Embodiment 4
A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure, including friction pile cantilever segment 1, antiskid pile foundation
Top surface platform 2, antiskid pile foundation 3, friction pile footing step 4, vertical anchor rod system 5, horizontal anchor rod system 6, TGXG system
System 8, friction pile cantilever segment main reinforcement 9, hillside 10 and breast boards 11 are provided with friction pile footing step 4 on the hillside 10, described
Antiskid pile foundation 3 is provided on friction pile footing step 4, the antiskid pile foundation 3 is provided with antiskid pile foundation top surface platform 2,
Friction pile cantilever segment 1 is provided on the antiskid pile foundation top surface platform 2, is provided in the hillside 10 and antiskid pile foundation 3
Vertical anchor rod system 5, the hillside 10 and 3 intersection of antiskid pile foundation are provided with horizontal anchor rod system 6；
The friction pile cantilever segment 1 is internally provided with breast boards 11 and friction pile cantilever segment main reinforcement 9；
The vertical anchor rod system 5 and horizontal anchor rod system 6 are fixedly connected with friction pile cantilever segment main reinforcement 9；
The soil body is backfilled between the friction pile cantilever segment 1 and hillside 10 and is laid with TGXG system 8.
Further, the antiskid pile foundation 3 is synchronously poured with pile body, and the concrete grade of use is identical with pile body, basis
It is not less than C30 with pile concrete label.
Further, the vertical anchor rod system 5 and horizontal anchor rod system 6 use the HRB400 reinforcing bar systems of a diameter of Φ 32
Make, vertical rock-bolt length 4m, exposure 2m, horizontal anchor pole 12m, exposure to pile body main reinforcement position.
Further, the vertical anchor rod system 5 and horizontal anchor rod system 6 are welded with friction pile cantilever segment main reinforcement 9.
Further, the friction pile footing step 4 uses hand excavation, ensures the smooth of step surface, foundation excavation into
The in vivo stepped form in mountain, width height ratio of steps 1.0:1.0, footing step horizontal width 0.5m, afterbody berm width is not
Less than 1.0m, platform classification must not drop below 3 grades.
Further, the TGXG system 8 uses high density polyvinyl-chloride direction earthwork grille, and breadth is not less than
5.0m, 50~80mm of mesh diameter.
Further, the friction pile cantilever segment 1 is rectangle or the rectangle with the edge of a wing.
Claims (7)
1. a kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure, which is characterized in that including friction pile cantilever
Section（1）, antiskid pile foundation top surface platform（2）, antiskid pile foundation（3）, friction pile footing step（4）, vertical anchor rod system（5）、
Horizontal anchor rod system（6）, TGXG system（8）, friction pile cantilever segment main reinforcement（9）, hillside（10）And breast boards（11）, it is described
Hillside（10）On be provided with friction pile footing step（4）, the friction pile footing step（4）On be provided with antiskid pile foundation（3）,
The antiskid pile foundation（3）It is provided with antiskid pile foundation top surface platform（2）, the antiskid pile foundation top surface platform（2）Upper setting
There is friction pile cantilever segment（1）, the hillside（10）With antiskid pile foundation（3）On be provided with vertical anchor rod system（5）, the hillside
（10）With antiskid pile foundation（3）Intersection is provided with horizontal anchor rod system（6）；
The friction pile cantilever segment（1）It is internally provided with breast boards（11）With friction pile cantilever segment main reinforcement（9）；
The vertical anchor rod system（5）With horizontal anchor rod system（6）With friction pile cantilever segment main reinforcement（9）It is fixedly connected；
The friction pile cantilever segment（1）And hillside（10）Between backfill the soil body and be laid with TGXG system（8）.
2. highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure according to claim 1, which is characterized in that
The antiskid pile foundation（3）It is synchronously poured with pile body, the concrete grade of use is identical with pile body, basis and pile concrete mark
Number be not less than C30.
3. highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure according to claim 1, which is characterized in that
The vertical anchor rod system（5）With horizontal anchor rod system（6）Using the HRB400 reinforcement fabrications of a diameter of Φ 32, vertical anchor pole is long
Spend 4m, exposure 2m, horizontal anchor pole 12m, exposure to pile body main reinforcement position.
4. highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure according to claim 1, which is characterized in that
The vertical anchor rod system（5）With horizontal anchor rod system（6）With friction pile cantilever segment main reinforcement（9）Welding.
5. highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure according to claim 1, which is characterized in that
The friction pile footing step（4）Using hand excavation, ensure the smooth of step surface, the in vivo steps of foundation excavation Cheng Xiangshan
Formula, width height ratio of steps 1.0:1.0, footing step horizontal width 0.5m, afterbody berm width are not less than 1.0m, platform point
Grade must not drop below 3 grades.
6. highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure according to claim 1, which is characterized in that
The TGXG system（8）Using high density polyvinyl-chloride direction earthwork grille, breadth is not less than 5.0m, and mesh diameter 50~
80mm。
7. highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure according to claim 1, which is characterized in that
The friction pile cantilever segment（1）Rectangle for rectangle or with the edge of a wing.
Priority Applications (1)
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| CN108660866A (en) * | 2018-06-10 | 2018-10-16 | 中铁二院工程集团有限责任公司 | A kind of talus slide area high-speed railway resistant slide deformation subgrade strengthening structure |
| CN109024324A (en) * | 2018-08-22 | 2018-12-18 | 长江勘测规划设计研究有限责任公司 | Abrupt slope ladder culvert and construction method for pipeline free removal and protection |
| CN109680583A (en) * | 2019-02-21 | 2019-04-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Processing method for road shoulder wall of steep rock road section |
| CN110195388A (en) * | 2019-06-25 | 2019-09-03 | 四川省公路规划勘察设计研究院有限公司 | Overhang widened structure Bang Shan highway and its construction method |
| CN110205889A (en) * | 2019-06-11 | 2019-09-06 | 兰州铁道设计院有限公司 | The method that the wide transformation of existing line base side is carried out using Combined piling slab-wall structure |
| CN110412240A (en) * | 2019-05-14 | 2019-11-05 | 华北理工大学 | Obturation and the three-dimensional analog simulation experimental rig of country rock interaction rule and method |
| CN111235970A (en) * | 2020-03-17 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Prestressed pile slab wall filled embankment structure, embankment system and construction method |
| CN111287041A (en) * | 2020-02-24 | 2020-06-16 | 河海大学 | Novel soil retaining structure in limited space and construction process thereof |
| CN111749288A (en) * | 2020-07-31 | 2020-10-09 | 安徽省交通建设股份有限公司 | Load-reducing heightening structure of existing retaining wall and construction method thereof |
| CN112144548A (en) * | 2020-08-29 | 2020-12-29 | 兰州理工大学 | Semi-embedded multifunctional frame supporting structure and construction method thereof |
| CN114215961A (en) * | 2021-12-13 | 2022-03-22 | 中铁西北科学研究院有限公司 | Construction method suitable for pipeline engineering supporting structure in landslide area |
| CN115305977A (en) * | 2022-07-01 | 2022-11-08 | 中冀建勘集团有限公司 | Foundation reinforcement method for cliff-attached building |
| CN115897318A (en) * | 2022-09-30 | 2023-04-04 | 中国电建集团贵州电力设计研究院有限公司 | Ecological restoration method for partial collapse of semi-excavated and semi-filled road |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108660866A (en) * | 2018-06-10 | 2018-10-16 | 中铁二院工程集团有限责任公司 | A kind of talus slide area high-speed railway resistant slide deformation subgrade strengthening structure |
| CN108660866B (en) * | 2018-06-10 | 2024-01-05 | 中铁二院工程集团有限责任公司 | Anti-slip deformation roadbed reinforcing structure of high-speed railway in rock mass landslide area |
| CN109024324B (en) * | 2018-08-22 | 2023-10-24 | 长江勘测规划设计研究有限责任公司 | Steep slope ladder culvert for dismantling-free and protection of pipeline and construction method |
| CN109024324A (en) * | 2018-08-22 | 2018-12-18 | 长江勘测规划设计研究有限责任公司 | Abrupt slope ladder culvert and construction method for pipeline free removal and protection |
| CN109680583A (en) * | 2019-02-21 | 2019-04-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Processing method for road shoulder wall of steep rock road section |
| CN110412240A (en) * | 2019-05-14 | 2019-11-05 | 华北理工大学 | Obturation and the three-dimensional analog simulation experimental rig of country rock interaction rule and method |
| CN110205889A (en) * | 2019-06-11 | 2019-09-06 | 兰州铁道设计院有限公司 | The method that the wide transformation of existing line base side is carried out using Combined piling slab-wall structure |
| CN110205889B (en) * | 2019-06-11 | 2021-03-02 | 兰州铁道设计院有限公司 | Method for carrying out existing line roadbed slope width transformation by adopting combined pile slab wall structure |
| CN110195388A (en) * | 2019-06-25 | 2019-09-03 | 四川省公路规划勘察设计研究院有限公司 | Overhang widened structure Bang Shan highway and its construction method |
| CN111287041A (en) * | 2020-02-24 | 2020-06-16 | 河海大学 | Novel soil retaining structure in limited space and construction process thereof |
| CN111235970A (en) * | 2020-03-17 | 2020-06-05 | 中铁二院工程集团有限责任公司 | Prestressed pile slab wall filled embankment structure, embankment system and construction method |
| CN111749288A (en) * | 2020-07-31 | 2020-10-09 | 安徽省交通建设股份有限公司 | Load-reducing heightening structure of existing retaining wall and construction method thereof |
| CN112144548A (en) * | 2020-08-29 | 2020-12-29 | 兰州理工大学 | Semi-embedded multifunctional frame supporting structure and construction method thereof |
| CN114215961A (en) * | 2021-12-13 | 2022-03-22 | 中铁西北科学研究院有限公司 | Construction method suitable for pipeline engineering supporting structure in landslide area |
| CN114215961B (en) * | 2021-12-13 | 2023-10-27 | 中铁西北科学研究院有限公司 | Construction method suitable for landslide area pipeline engineering supporting structure |
| CN115305977A (en) * | 2022-07-01 | 2022-11-08 | 中冀建勘集团有限公司 | Foundation reinforcement method for cliff-attached building |
| CN115305977B (en) * | 2022-07-01 | 2024-06-11 | 中冀建勘集团有限公司 | Foundation reinforcement method for cliff building |
| CN115897318A (en) * | 2022-09-30 | 2023-04-04 | 中国电建集团贵州电力设计研究院有限公司 | Ecological restoration method for partial collapse of semi-excavated and semi-filled road |
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