CN207987960U - 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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- CN207987960U CN207987960U CN201820176798.9U CN201820176798U CN207987960U CN 207987960 U CN207987960 U CN 207987960U CN 201820176798 U CN201820176798 U CN 201820176798U CN 207987960 U CN207987960 U CN 207987960U
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- 210000000481 breast Anatomy 0.000 claims abstract description 14
- 238000009412 basement excavation Methods 0.000 claims description 22
- 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
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 35
- 238000004873 anchoring Methods 0.000 description 16
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- 238000010586 diagram Methods 0.000 description 6
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- 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
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure, including friction pile cantilever segment, antiskid pile foundation top surface platform, antiskid pile foundation, friction pile footing step, vertical anchor rod system, lateral anchor rod system, TGXG system, friction pile cantilever segment main reinforcement, hillside and breast boards, friction pile footing step is provided on hillside, antiskid pile foundation is provided on friction pile footing step, friction pile basis instrument has antiskid pile foundation top surface platform, it is provided with friction pile cantilever segment on the platform of antiskid pile foundation top surface, vertical anchor rod system is provided on the basis of hillside and friction pile, hillside and antiskid pile foundation intersection are provided with lateral anchor rod system；Friction pile cantilever segment is internally provided with breast boards and friction pile cantilever segment main reinforcement；Vertical anchor rod system and lateral anchor rod system are fixedly connected with friction pile cantilever segment main reinforcement；The soil body is backfilled between friction pile cantilever segment and hillside and is laid with TGXG system.The influence that the utility model reduces difficulty of construction, saves project cost, shortens 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 gradually tend to be perfect, mountain highway
Construction should avoid high embankment as far as possible, first, meet using reducing project cost under the premise of function, but high embankment
It is serious to environmental disruption, especially it would become hard to restore behind the region of ecological environment frailty, destruction.During highway construction,
The coverage that stake reduces high embankment with retaining wall combining form is mostly used, 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 a large amount of research work regarding to the issue above, how to meet design requirement
Shortening anchoring depth in range becomes research emphasis.202787236 U of patent CN disclose a kind of novel friction pile,
It is mainly characterized in that the bottom of friction pile extends vertically, forms lateral 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 novel friction pile disclosed in this patent is only applicable to soil-slope.
107447777 A of patent CN, which are disclosed, puts anchor anti-sliding piled barricade in a kind of hole, the form of anchor cable is added by cantilever segment, can be contracted
Short anchoring section depth, but anchoring section could meet stability requirement there is still a need for certain depth, especially in steep slope subgrade
Section, in order to make Rock And Soil on the outside of stake 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, setting retaining wall between piles are to receive well
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.
Invention content
Goal of the invention：For overcome existing friction pile anchoring section in hard rock when excavate that difficulty is big, project cost is high not
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
Dike friction pile stability and the big problem of difficulty of construction, are 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：
A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure, including friction pile cantilever segment, friction pile
Basic top surface platform, antiskid pile foundation, friction pile footing step, vertical anchor rod system, lateral anchor rod system, TGXG system
System, friction pile cantilever segment main reinforcement, hillside and breast boards are provided with friction pile footing step, the antiskid pile foundation on the hillside
Antiskid pile foundation is provided on plinth step, the friction pile basis instrument has antiskid pile foundation top surface platform, the antiskid pile foundation
It is provided with friction pile cantilever segment on the platform of plinth top surface, vertical anchor rod system is provided on the basis of the hillside and friction pile, it is described
Hillside and antiskid pile foundation intersection are provided with lateral anchor rod system；The friction pile cantilever segment is internally provided with breast boards and resists
Sliding pile cantilever segment main reinforcement；The vertical anchor rod system and lateral anchor rod system are fixedly connected with friction pile cantilever segment main reinforcement；It is described
The soil body is backfilled between friction pile cantilever segment and hillside and is laid with TGXG system.
Highway hard rock Steep Slope Embankment anchor rod foundation anti-slide pile structure of the present invention, including：Friction pile cantilever segment resists
Sliding pile basis, foundation anchor system, substrate footing foundation backfill soil body TGXG system after stake.Cantilever segment is according to specific
Situation is designed as rectangle（Wall is followed closely suitable for gravity retaining wall between stake and inter-pile soil）With the rectangle with the edge of a wing（Suitable for peg board
Wall）.Antiskid pile foundation should with pile body synchronize pour, the concrete grade of use is identical as pile body, basis and pile concrete mark
Number be not less than C30.Foundation anchor system is divided into lateral anchor rod system and vertical anchor rod system, using the HRB400 of a diameter of Φ 32
Reinforcement fabrication.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 polyvinyl-chloride direction earthwork grille, breadth is 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, the specific steps are：
1. surveying and locating.Friction pile accurate location is determined according to 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, leveling 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, and foundation excavation is at the stepped form into massif, 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. constructing
Vertical anchor rod system.According to friction pile arrangement of reinforcement, determine that main reinforcement branch position, corresponding main reinforcement position apply 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 lateral anchoring-bolt system of construction.The lateral 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 lateral 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 molding, forbids to form horizontal construction joint, such as be poured because construction condition must be segmented, in two-step pouring level
The short muscle of cloth is reinforced at interface；7. after pile strength reach design strength 80% after hang breast boards and backfill 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, many hard rocks intensity itself is high in nature
It is traditional to cause economic waste with excavation 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, does not need excavation by troughs, shortens the duration, while also saving 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 is that hard rock slope excavates schematic diagram.
Fig. 3 is friction pile foundation excavation schematic diagram.
Vertical and lateral anchor pole schematic diagram based on Fig. 4.
Fig. 5 is schematic diagram after the completion of pile body and basis pour.
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 lateral 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 implementation mode
Embodiment 1
Highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure, including：After excavation slope step 7, chisel sets anti-
Sliding pile basis top surface platform 2.After determining four corner locations of friction pile, artificial chisel sets friction pile footing step 4.Construct anchor pole system
System, anchor rod system include vertical anchor rod system 5 and lateral anchor rod system 6.Antiskid pile foundation 3 and friction pile cantilever segment 1 are poured, is waited for
When pile strength reaches the 80% of design value, hangs breast boards and backfill the soil body after stake, while being laid with TGXG system 8.
Embodiment 2
The construction method of highway hard rock Steep Slope Embankment anchor rod foundation friction pile, the specific steps are：1. surveying and locating.Root
Friction pile accurate location is determined according to design coordinate scene；2. levelling of the land removes the topsoil of friction pile construction area, according to design
Wide, the high excavation slope platform of step, leveling 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, platform outer edge to slope
Chipping is answered at face, and outside 4% weathering is set；3. chisel sets basis.Manually excavated using pneumatic pick or other gadding machine devices
Explosion is forbidden on basis, and foundation excavation is at the stepped form into massif, width height ratio of steps 1.0:1.0.Footing step is horizontal wide
0.5m is spent, afterbody berm width is not less than 1.0m, and platform classification must not drop below 3 grades；4. vertical anchor rod system of constructing.Root
According to friction pile arrangement of reinforcement, determine main reinforcement branch position, corresponding main reinforcement position applies vertical armature boring, boring direction be it 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 lateral anchoring-bolt system of construction.The lateral vertical spacing 1.0m of anchor pole, lateral arrangement two arrange, drillable length 12.15m, anchor pole direction
It it is 15 ° with horizontal direction angle.After pile body main reinforcement is welded, lateral termination point of anchor rod and pile body main reinforcement are welded；6. molding is simultaneously poured
Build 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,
Forbid to form horizontal construction joint, such as be poured because construction condition must be segmented, the short muscle of cloth at the horizontal interface of two-step pouring
It is reinforced；7. after pile strength reach design strength 80% after hang breast boards and backfill the soil body after wall, backfill soil body wide bed soil
Work grid, spacing 0.6m.
Embodiment 3
Present invention reinforced earth back-pressure as shown in Figure 1 closes supporting construction, and after hard rock slope excavation line 7, chisel sets antiskid
Pile foundation top surface platform 2.After determining four corner locations of friction pile, artificial chisel sets friction pile footing step 4.Construct anchor pole system
System, anchor rod system include vertical anchor rod system 5 and lateral anchor rod system 6.The anchoring section of traditional friction pile is replaced with anchor rod foundation,
The excavation for ensuring reduction anchoring section while antiskid stake body is stablized, reduces difficulty of construction, saves project cost, while
Reduce the destruction to ecological environment.Pile body and basis 1 are poured, when pile strength reaches the 80% of design value, hangs breast boards simultaneously
The soil body after backfill stake, while being laid with TGXG system 8.TGXG reduces the soil pressure for directly acting on pile body, favorably
In the stability for improving 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 being passed through with bridge or tunnel, engineering is made
Valence is high, and the construction period is long.Design scheme is passed through with roadbed semi-filling and semi-excavating, and pile plate wall supporting and retaining system is set 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.Friction pile accurate location is determined according to design coordinate scene；
（2）Levelling of the land.The topsoil for removing friction pile construction area excavates the massif side within embankment according to design requirement
Slope, platform wide 2m, high 1.3m, leveling antiskid pile foundation top surface platform, stake sectional dimension is 1.75m × 2.5m, indicates friction pile
Four corner locations 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.Pneumatic pick excavation foundation is manually used, for foundation excavation at the stepped form into massif, step is wide
Height is than being 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, determine that main reinforcement branch position, corresponding main reinforcement position are applied
Make 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 be welded with pile body main reinforcement；
（5）The lateral anchoring-bolt system of construction.The lateral 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, lateral 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 and basis one
Secondary pouring molding；
（7）After pile strength reach design strength 80% after hang breast boards and backfill the soil body after wall, backfill soil body wide bed soil
Work 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, friction pile
Basic top surface platform 2, antiskid pile foundation 3, friction pile footing step 4, vertical anchor rod system 5, lateral anchor rod system 6, Tu Gongge
Grating 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,
Antiskid pile foundation 3 is provided on the friction pile footing step 4, it is flat that the antiskid pile foundation 3 is provided with antiskid pile foundation top surface
Platform 2 is provided with friction pile cantilever segment 1 on antiskid pile foundation top surface platform 2, is set in the hillside 10 and antiskid pile foundation 3
It is equipped with vertical anchor rod system 5, the hillside 10 and 3 intersection of antiskid pile foundation are provided with lateral 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 lateral 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 and pile body synchronize pour, the concrete grade of use is identical as pile body, basis
It is not less than C30 with pile concrete label.
Further, the vertical anchor rod system 5 and lateral anchor rod system 6 use the HRB400 reinforcing bar systems of a diameter of Φ 32
Make, vertical rock-bolt length 4m, exposure 2m, lateral anchor pole 12m, exposure to pile body main reinforcement position.
Further, the vertical anchor rod system 5 and lateral 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 to
Stepped form in massif, 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, breadth to be 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）、
Lateral anchor rod system（6）, TGXG system（8）, friction pile cantilever segment main reinforcement（9）, hillside（10）And breast boards（11）, 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）, 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 lateral 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 lateral anchor rod system（6）With friction pile cantilever segment main reinforcement（9）It is fixedly connected；
The friction pile cantilever segment（1）The hillside and（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）With pile body synchronize pour, the concrete grade of use is identical as 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 lateral anchor rod system（6）Using the HRB400 reinforcement fabrications of a diameter of Φ 32, vertical anchor pole is long
Spend 4m, exposure 2m, lateral 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 lateral 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, foundation excavation is at the step into massif
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.
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| CN108086352A (en) * | 2018-02-01 | 2018-05-29 | 云南新创新交通建设股份有限公司 | A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure |
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| CN108086352A (en) * | 2018-02-01 | 2018-05-29 | 云南新创新交通建设股份有限公司 | A kind of highway hard rock Steep Slope Embankment anchor rod foundation Anti-slide Pile Retaining Structure |
| CN110820433A (en) * | 2019-12-04 | 2020-02-21 | 中铁二院工程集团有限责任公司 | Hard plastic soil foundation existing high-speed railway embankment force balance side width structure and construction method |
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| CN111118967A (en) * | 2019-12-30 | 2020-05-08 | 中铁第六勘察设计院集团有限公司 | Construction method for filling foam light soil foundation pit of railway roadbed in soft soil area |
| CN113373946A (en) * | 2021-04-26 | 2021-09-10 | 中国建筑第二工程局有限公司 | Mine method tunnel entrance side slope construction platform structure and construction method thereof |
| CN113373946B (en) * | 2021-04-26 | 2022-12-06 | 中国建筑第二工程局有限公司 | Mine method tunnel entrance side slope construction platform structure and construction method thereof |
| CN113215995A (en) * | 2021-05-11 | 2021-08-06 | 广州市市政工程设计研究总院有限公司 | Method for constructing bridge road in narrow space |
| CN113215995B (en) * | 2021-05-11 | 2022-06-10 | 广州市市政工程设计研究总院有限公司 | Method for constructing bridge road in narrow space |
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