CN109989313A - A kind of lightweight combined member and construction method suitable for facing the broadening of precipice road - Google Patents
A kind of lightweight combined member and construction method suitable for facing the broadening of precipice road Download PDFInfo
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- CN109989313A CN109989313A CN201910371828.0A CN201910371828A CN109989313A CN 109989313 A CN109989313 A CN 109989313A CN 201910371828 A CN201910371828 A CN 201910371828A CN 109989313 A CN109989313 A CN 109989313A
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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
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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
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
-
- 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
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Road Paving Structures (AREA)
Abstract
A kind of lightweight combined member suitable for facing the broadening of precipice road, including massif, massif includes old road and faces sky cliff positioned at old road side, cliff is formed on cliff, cliff inwardly excavates massif and forms step-like artificial cliff, step-like artificial cliff is equipped with the different multiple anchor poles of height, and anchor pole extends internally along step-like artificial cliff；Step-like artificial cliff bottom is equipped with pedestal, is erected with panel on pedestal, is perfused with foam concrete between panel and step-like artificial cliff；The step-like artificial cliff surface is equipped with the connector being connected with anchor pole, and connection reinforcing bar is connected on connector, and connection reinforcing bar passes through foam concrete and is connected with panel；Compared with prior art, panel is set on bottom plate leveling layer, foam concrete is injected between panel and step-like massif can quickly form way of concrete foundations, step-like massif can play the role of vertical supporting to way of concrete foundations simultaneously, and connection reinforcing bar is connected with anchor pole and can play lateral tensioning function to way of concrete foundations.
Description
Technical field
The invention belongs to roads to widen technical field, combine more particularly, to a kind of lightweight suitable for facing the broadening of precipice road
Component and construction method.
Background technique
Mountain highway it is numerous and also it is easy influenced by unfavorable geology disaster, facing widening for precipice road is a great safety
The technical problem of risk, outer its difficulty of widening road of high mountain cliff as one can imagine, and cost dearly, security risk is more, tradition
Technology can not generally be implemented, even huge construction safety risk, and bridge pier column can also be faced by setting up trestle in the side Lin Ya
Security risk it is also very big, it is sufficiently expensive to implement cost.In order to implement road widening under the conditions of keeping old road unimpeded, very
It is necessary to make reliable, safe construction operation platform in cliff side, first excavated the invention proposes a kind of, by when excavating
Anchoring widens for old road and provides the technical matters of reliable operation platform, is then dexterously using foam concrete technology quick
That completes road widens construction, efficiently solves the technical problem for facing precipice road widening.
In the prior art, China Patent No. CN 105236872 is provided a kind of light for the precipitous section roadbed filling in mountain area
Matter foamed concrete material and engineering method, material include the component of following parts by weight: 100~200 parts of cement, 5~35 parts of wollastonite powders,
5~55 parts of diatomite, 60~150 parts of water, 2~20 parts of water-reducing agents, 1~3 part of early strength agent, 5~20 parts of synthetic fibers, 5~10 parts
Foaming agent, 2~15 parts of foaming agents.The high intensity of the invention light soil fills self-compaction, settling amount are small, speed of application is fast etc.
Itself load of roadbed can be reduced to 1/3 or so of conventional roadbed by feature, and the requirement to steep hill bearing capacity can also substantially drop
It is low.
Though above scheme can be suitably used for the roadbed filling in the precipitous section in mountain area, for filling for the section Lin Ya, it is also necessary to
Solution operation platform, stability of the hill are reinforced, foam concrete bottom width is insufficient and depth-width ratio is excessive, and height fills easy induce suddenly and inclines
, cracking even topples etc. safety problems.
Simultaneously when needing to carry out road widening to the massif more loosened, since concrete has biggish weight, mountain
Body cannot support the weight of concrete, and there are security risks, while the subgrade construction time of concrete is longer, and cost is high.
Summary of the invention
The present invention is to overcome above-mentioned defect in the prior art, and it is good to provide a kind of endurance quality, securely and reliably, intensity
The high lightweight combined member and construction method for being suitable for facing the broadening of precipice road.
In order to reach the goals above, the technical scheme adopted by the invention is that: it is a kind of suitable for face precipice road broadening it is light
Matter combined member, including massif, massif include old road and face sky cliff positioned at old road side, and cliff, cliff are formed on cliff
It inwardly excavates massif and forms step-like artificial cliff, step-like artificial cliff is equipped with the different multiple anchor poles of height, anchor pole edge
Step-like artificial cliff extends internally；Step-like artificial cliff bottom is equipped with pedestal, is erected with panel, panel and step on pedestal
Foam concrete is perfused between the artificial cliff of shape；The step-like artificial cliff surface is equipped with the connector being connected with anchor pole,
Connection reinforcing bar is connected on connector, connection reinforcing bar passes through foam concrete and is connected with panel.
As a preferred solution of the present invention, multi-layered foamed concrete is filled between the panel and cliff, it is adjacent
Anticracking steel wire is equipped between the foam concrete of layer.
As a preferred solution of the present invention, the step-like artificial cliff surface, which is injected with, sprays coagulation containing steel mesh
Native mask, connector are located on mask containing Spraying of reinforcement mat with concrete.
As a preferred solution of the present invention, the connection is end reinforced is equipped with nut, and nut offsets with panel, and face
Plate and nut junction are additionally provided with concrete sealing off and covering anchorage.
As a preferred solution of the present invention, the pedestal includes bottom plate leveling layer and concrete floor, bottom plate leveling
Layer is poured in step-like artificial cliff bottom, and concrete floor is poured on bottom plate leveling layer, and panel is erected on concrete floor
On.
As a preferred solution of the present invention, the panel is in step-like from bottom to top, and extends to platform at the top of panel
At the top of the artificial cliff of scalariform.
As a preferred solution of the present invention, at the foam concrete is filled to panel, foam concrete top
Portion forms and widens road surface, widens road surface and is connected with old road, and foam concrete is equipped with guardrail.
A kind of construction method suitable for facing the lightweight combined member of precipice road broadening, which is characterized in that including following step
It is rapid:
Step A: the cliff of old road side being excavated from top to bottom and forms step-like artificial cliff, every lower 1.5 meters -2 meters of digging,
1 row's anchor pole is set, and mask containing Spraying of reinforcement mat with concrete is arranged in the step-like artificial cliff surface after excavation in time；
Step B: in rock bolt and then continue to excavate 1.5 meters -2 meters downwards, then make a call to 1 row's anchor pole, be laid with steely in time
Muscle net gunite concrete mask；
Step C: until being excavated to slope foot position determined by designed elevation；
Step D: bottom plate leveling layer, and the casting concrete bottom plate on bottom plate leveling layer, coagulation are poured at slope foot position
Outrigger platform is had on native bottom plate；
Step E: setting up panel on concrete floor, and connection reinforcing bar is added on panel, by connection reinforcing bar and place
Anchor pole at height is connected and fixed by connector；
Step F: nut check is carried out to the connection reinforcing bar extended to outside panel, and carries out concrete sealing off and covering anchorage
Step G: the filled and process concrete between panel and step-like artificial cliff；
Step H: foam concrete is filled to the height of old road, and road surface is widened in foam concrete formation, broadening road surface with
Old road is connected.
As a preferred solution of the present invention, placement layer by layer forms the foam concrete from bottom to top, every 1m-2m
It is laid with anticracking steel wire.
As a preferred solution of the present invention, anticollision barrier has been poured on the foam concrete.
The beneficial effects of the present invention are: being leveled by opening up bottom plate leveling layer in step-like artificial cliff bottom in bottom plate
Panel is set on layer, foam concrete is injected between panel and step-like artificial cliff can quickly form way of concrete foundations, together
When step-like artificial cliff can play the role of vertical supporting to way of concrete foundations, connection reinforcing bar is connected with anchor pole can be to concrete road
Base plays lateral tensioning function, so that way of concrete foundations has better stability.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the excavation structural schematic diagram of cliff；
Fig. 3 is the structural schematic diagram of old road and cliff；
Appended drawing reference in figure: old road 1, cliff 2, step-like artificial cliff 3, anchor pole 4, mask containing Spraying of reinforcement mat with concrete
5, connector 6, bottom plate leveling layer 7, concrete floor 8, panel 9, foam concrete 10, connection reinforcing bar 11, nut 12, anticracking steel
Silk screen 13 widens road surface 14, guardrail 15, pedestal 16, cliff 17, massif 18.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention.
As shown in Figure 1-3, a kind of lightweight combined member suitable for facing the broadening of precipice road, including massif 18, massif 18 wrap
It includes old road 1 and faces sky cliff 17 positioned at 1 side of old road, form cliff 2 on cliff 15, cliff 2 inwardly excavates 18 and forms step
The artificial cliff 3 of shape, step-like artificial cliff 3 are equipped with the different multiple anchor poles 4 of height, anchor pole 4 along step-like artificial cliff 3 to
Interior extension, the quantity of anchor pole 4 are configured according to the height of practical step-like artificial cliff 3, step-like artificial cliff 3 from upper and
It is lower to excavate, it can be achieved that operator works on the step of step-like artificial cliff 3, while realize the unimpeded always of old road 1.
Step-like 3 bottom of artificial cliff is equipped with pedestal 16, and pedestal 16 is located at the position at the relatively firm place of massif, on pedestal 16
It is erected with panel 9, foam concrete 10 is perfused between panel 9 and step-like artificial cliff 3, foam concrete 10 forms road
Roadbed；Step-like 3 surface of artificial cliff is equipped with the connector 6 being connected with anchor pole 4, connection reinforcing bar 11 is connected on connector 6, even
It connects reinforcing bar 11 to be connected across foam concrete 10 with panel 9, by connection reinforcing bar 11 and anchor pole 3 to foam concrete 10 and panel
9 carry out lateral tension, while step-like artificial cliff 3 vertically tenses foam concrete 10 and panel 9.
By penetrating multiple rows of anchor pole 4 in step-like artificial cliff 3, stage energy overall process is being excavated downwards in 3 outer end of anchor pole
Step-like artificial cliff 3 is effectively held, step-like artificial 3 surface of cliff is injected with mask containing Spraying of reinforcement mat with concrete 5, steely
Muscle net gunite concrete mask 5 be steel mesh and gunite concrete, it is right by the setting of mask containing Spraying of reinforcement mat with concrete 5
Step-like 3 surface of artificial cliff is tentatively reinforced, and makes it possible to ensure that step-like artificial cliff 3 and remaining step to be excavated
The stability of the artificial cliff 3 of shape, while old road 1 safe and reliable can be open to traffic.
Step-like artificial cliff 3 forms low wide and up narrow structure, preferably stablizes so that step-like artificial cliff 3 has
Property, while it is step-like but also, convenient for the installation of scaffold, connecting when the later period processes on the outside of to step-like artificial cliff 3
It connects device 6 and is located at step-like artificial 3 surface of cliff, pedestal 16 is located at the bottom of step-like artificial cliff 3.
Pedestal 16 is equipped with panel 9, and panel 9 is located at step-like artificial 3 side of cliff, and panel 9 is vertically arranged at pedestal 16
On, panel 9 has a certain distance between step-like artificial cliff 3, and panel 9 is equipped with connection reinforcing bar 11, connects reinforcing bar
11 are connected with connector 6, and connection reinforcing bar 11, which extends to, is equipped with nut 12 at panel 9, nut 12 offsets with panel 9, realizes connection
Tension of the reinforcing bar 11 to panel 9, while nut 12 is equipped with concrete sealing off and covering anchorage with 11 junction of reinforcing bar is connect, so that panel 9 and company
Connecing has better stability between reinforcing bar 11, multi-layered foamed concrete is filled between panel 9 and step-like artificial cliff 3
10, anticracking steel wire 13 is equipped between the foam concrete 10 of adjacent layer.
Panel 9 is used to provide the effect of restraining stencil when pouring for the flowing of foam concrete 10, on the other hand, panel 9
To prevent weathering and rain erosion from improving permanently effective protective effect after the solidification of foam concrete 10, so that whole have
Better durability.
Panel 9 arranges that panel 9 is in step-like from bottom to top, and extends to old road at the top of panel 9 using upright step
At 1, the step section of panel 3 is adapted with the step section of step-like artificial cliff 3, convenient for the installation of operator, connects reinforcing bar
11 for connecting panel 9 and connector 6, while so that panel 9 is that pedestal 16 connects, is also connected in anchor pole 4, can effectively subtract
Few panel 9 topples the risk of deformation.
Pedestal 16 includes bottom plate leveling layer 7 and concrete floor 8, and bottom plate leveling layer 7 is poured in step-like artificial cliff 3
On, concrete floor 8 is poured on bottom plate leveling layer 7, and panel 9 is vertically arranged on concrete floor 8, on bottom plate leveling layer 7
Equipped with outrigger platform, outrigger platform provides good inspection workbench for long-term maintenance and later period inspection of quality.
At the top of the filling to panel 9 of foam concrete 10, is formed at the top of foam concrete 10 and widen road surface 14, widen road surface
14 are connected with old road 1, and foam concrete 10 is equipped with guardrail 15, and foam concrete 9 is that a kind of good fluidity, stomata are equal
Even fine and closely woven, bulk density about 4kN/m3~8kN/m3 and more aerocrete materials with good independence after hardening, single shaft are anti-
Compressive Strength about 0.6MPa~1MPa, hole diameter are nearly all less than 1mm.
In the actual operation process, comprising the following steps:
Step-like artificial cliff 3 is formed firstly, the cliff 2 of 1 side of old road is excavated from top to bottom, step-like artificial steep
Every lower 1.5 meters -2 meters of digging sets 1 row's anchor pole 4 on wall 3, and setting contains steel mesh injection coagulation on the cliff 2 after excavation in time
Native mask 5, mask containing Spraying of reinforcement mat with concrete 5 is steel mesh and gunite concrete, so that anchor pole 4 and step-like artificial cliff
There is better stability between 3.
Locked in anchor pole 4 and then continue to excavate 1.5 meters -2 meters downwards, then make a call to 1 row's anchor pole 4, be laid in time steel mesh and
Gunite concrete, until being excavated to slope foot position determined by designed elevation.
Bottom plate leveling layer 7, and the casting concrete bottom plate 8 on bottom plate leveling layer 7, concrete bottom are poured at slope foot position
Outrigger platform is had on plate 8, panel 9 is set up on concrete floor 8, and adds connection reinforcing bar 11 on panel 9, will connect steel
Muscle 11 is connected and fixed with the anchor pole 4 at the height of place by connector 6.
It will extend into setting nut 12, nut 12 on the connection reinforcing bar 11 outside panel 9 to offset with panel 9, and in nut 12
Place carries out concrete sealing off and covering anchorage, so that having better stability between panel 9 and connection reinforcing bar 11.
The filled and process concrete 10 between panel 9 and step-like artificial cliff 3, foam concrete 10 are layered from bottom to top
Pouring molding is laid with anticracking steel wire 13 every 1m-2m.
The filling of foam concrete 10 to old road 1 is highly located, road surface 14 is widened in the formation of foam concrete 10, and mixed in foam
Anticollision barrier 15 is poured on solidifying soil 10, widens and is equipped with guardrail 15 on the outside of road surface 14.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention；Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Although appended drawing reference in figure is used more herein: old road 1, cliff 2, step-like artificial cliff 3, anchor pole 4 contain
Spraying of reinforcement mat with concrete mask 5, connector 6, bottom plate leveling layer 7, concrete floor 8, panel 9, foam concrete 10, connection
Reinforcing bar 11, nut 12, anticracking steel wire 13 widen road surface 14, guardrail 15, pedestal 16, cliff 17, the equal terms of massif 18, but simultaneously
A possibility that being not excluded for using other terms；The use of these items is only for be more convenient to describe and explain sheet of the invention
Matter；Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (10)
1. a kind of lightweight combined member suitable for facing the broadening of precipice road, including massif (18), massif (18) include old road (1) and
Positioned at facing sky cliff (17) for old road (1) side, cliff (2) are formed on cliff (15), which is characterized in that the cliff (2) to
Interior excavation massif (18) forms step-like artificial cliff (3), and step-like artificial cliff (3) is equipped with the different multiple anchor poles of height
(4), anchor pole (4) extends internally along step-like artificial cliff (3)；Step-like artificial cliff (3) bottom is equipped with pedestal (16), pedestal
(16) it is erected on panel (9), foam concrete (10) is perfused between panel (9) and step-like artificial cliff (3)；Described
The artificial cliff of scalariform (3) surface is equipped with the connector (6) being connected with anchor pole (4), and connection reinforcing bar (11) is connected on connector (6),
Connection reinforcing bar (11) passes through foam concrete (10) and is connected with panel (9).
2. a kind of lightweight combined member suitable for facing the broadening of precipice road according to claim 1, which is characterized in that described
Multi-layered foamed concrete (10) are filled between panel (9) and cliff (2), are equipped between the foam concrete (10) of adjacent layer anti-
Split steel wire (13).
3. a kind of lightweight combined member suitable for facing the broadening of precipice road according to claim 1, which is characterized in that described
Step-like artificial cliff (3) surface has mask containing Spraying of reinforcement mat with concrete (5), and it is mixed that connector (6) is located at the injection containing steel mesh
On solidifying soil mask (5).
4. a kind of lightweight combined member suitable for facing the broadening of precipice road according to claim 1, which is characterized in that described
It connects reinforcing bar (11) end and is equipped with nut (12), nut (12) offsets with panel (9), and panel (9) and nut (12) junction
It is additionally provided with concrete sealing off and covering anchorage.
5. a kind of lightweight combined member suitable for facing the broadening of precipice road according to claim 1, which is characterized in that described
Pedestal (16) includes bottom plate leveling layer (7) and concrete floor (8), and bottom plate leveling layer (7) is poured in step-like artificial cliff (3)
Bottom, concrete floor (8) are poured on bottom plate leveling layer (7), and panel (9) is erected on concrete floor (8).
6. a kind of lightweight combined member suitable for facing the broadening of precipice road according to claim 5, which is characterized in that described
Panel (9) is in step-like from bottom to top, and is extended at the top of step-like artificial cliff (3) at the top of panel (9).
7. a kind of lightweight combined member suitable for facing the broadening of precipice road according to claim 1, which is characterized in that described
At at the top of foam concrete (10) filling to panel (9), is formed at the top of foam concrete (10) and widen road surface (14), widen road surface
(14) it is connected with old road (1), and foam concrete (10) is equipped with guardrail (15).
8. a kind of construction method suitable for facing the lightweight combined member of precipice road broadening, which comprises the following steps:
Step A: the cliff (2) of old road (1) side being excavated from top to bottom and forms step-like artificial cliff (3), 1.5 meter -2 of every lower digging
Rice, sets 1 row's anchor pole (4), and step-like artificial cliff (3) the surface setting after excavation contains Spraying of reinforcement mat with concrete in time
Mask (5)；
Step B: it is locked in anchor pole (4) and then continues to excavate 1.5 meters -2 meters downwards, then make a call to 1 row's anchor pole (4), be laid with contain in time
Spraying of reinforcement mat with concrete mask (5)；
Step C: until being excavated to slope foot position determined by designed elevation；
Step D: pouring bottom plate leveling layer (7) at slope foot position, and the casting concrete bottom plate (8) on bottom plate leveling layer (7),
Outrigger platform is had on concrete floor (8)；
Step E: setting up panel (9) on concrete floor (8), and connection reinforcing bar (11) is added on panel (9), will connect steel
Muscle (11) is connected and fixed with the anchor pole (4) at the height of place by connector (6)；
Step F: nut (8) locking is carried out to the connection reinforcing bar of panel (9) outside is extended to, and carries out concrete sealing off and covering anchorage
Step G: the filled and process concrete (10) between panel (9) and step-like artificial cliff (3)；
Step H: at foam concrete (10) filling to old road (1) height, road surface (14) are widened in foam concrete (10) formation,
Broadening road surface (14) is connected with old road (1).
9. a kind of construction method suitable for facing the lightweight combined member of precipice road broadening according to claim 7, special
Sign is that placement layer by layer forms the foam concrete (10) from bottom to top, is laid with anticracking steel wire (13) every 1m-2m.
10. a kind of construction method suitable for facing the lightweight combined member of precipice road broadening according to claim 7, special
Sign is, has poured anticollision barrier (15) on the foam concrete (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371828.0A CN109989313A (en) | 2019-05-06 | 2019-05-06 | A kind of lightweight combined member and construction method suitable for facing the broadening of precipice road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371828.0A CN109989313A (en) | 2019-05-06 | 2019-05-06 | A kind of lightweight combined member and construction method suitable for facing the broadening of precipice road |
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| Publication Number | Publication Date |
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| CN109989313A true CN109989313A (en) | 2019-07-09 |
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ID=67136059
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910371828.0A Pending CN109989313A (en) | 2019-05-06 | 2019-05-06 | A kind of lightweight combined member and construction method suitable for facing the broadening of precipice road |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110409241A (en) * | 2019-08-13 | 2019-11-05 | 中电建十一局工程有限公司 | A kind of reinforcing bar lattice column is in roadbed rapid construction application method |
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| CN102864711A (en) * | 2012-01-19 | 2013-01-09 | 杜运兴 | Unbonded prestressed reinforced earth construction method and device thereof |
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| CN209975285U (en) * | 2019-05-06 | 2020-01-21 | 浙江交工集团股份有限公司 | Light combined member suitable for cliff road widening |
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| JP2000282470A (en) * | 1999-03-29 | 2000-10-10 | Dow Kakoh Kk | Lightweight banking structure |
| CN102359046A (en) * | 2011-07-27 | 2012-02-22 | 河南省交通规划勘察设计院有限责任公司 | High fill subgrade connection method |
| CN102864711A (en) * | 2012-01-19 | 2013-01-09 | 杜运兴 | Unbonded prestressed reinforced earth construction method and device thereof |
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| CN110409241A (en) * | 2019-08-13 | 2019-11-05 | 中电建十一局工程有限公司 | A kind of reinforcing bar lattice column is in roadbed rapid construction application method |
| CN110409241B (en) * | 2019-08-13 | 2021-08-24 | 中电建十一局工程有限公司 | Method for applying steel bar lattice column to roadbed rapid construction |
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