CN111118968A - Railway road shoulder - Google Patents

Railway road shoulder Download PDF

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Publication number
CN111118968A
CN111118968A CN201911411069.2A CN201911411069A CN111118968A CN 111118968 A CN111118968 A CN 111118968A CN 201911411069 A CN201911411069 A CN 201911411069A CN 111118968 A CN111118968 A CN 111118968A
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CN
China
Prior art keywords
gabion
shoulder
layer
railway
roadbed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911411069.2A
Other languages
Chinese (zh)
Inventor
张千里
陈锋
邓逆涛
杨常所
崔维孝
郭建湖
肖世伟
曾长贤
王仲锦
李中国
闫宏业
闫鑫
王鹏程
李泰灃
尧俊凯
刘景宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Siyuan Survey and Design Group Co Ltd
China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
China Railway Design Corp
China Railway Economic and Planning Research Institute
Original Assignee
China Railway Siyuan Survey and Design Group Co Ltd
China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
China Railway Design Corp
China Railway Economic and Planning Research Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Siyuan Survey and Design Group Co Ltd, China Academy of Railway Sciences Corp Ltd CARS, Railway Engineering Research Institute of CARS, China Railway Design Corp, China Railway Economic and Planning Research Institute filed Critical China Railway Siyuan Survey and Design Group Co Ltd
Priority to CN201911411069.2A priority Critical patent/CN111118968A/en
Publication of CN111118968A publication Critical patent/CN111118968A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • 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
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains

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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)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Architecture (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Revetment (AREA)

Abstract

The application provides a railway curb, include: a cable trough; the permeable gravel layer is arranged at the bottom of the cable groove and one side close to the line; the gabion shoulder protector is arranged on one side, away from the circuit, of the cable groove and can permeate water; the bottom and the side face of the cable trough are provided with drain holes communicated with the gabion shoulder protectors, so that water in the cable trough can be discharged through the drain holes and the gabion shoulder protectors. The utility model provides a gabion curb not only can make ponding in the cable groove pass through the outlet and gabion shoulder pad discharges to ponding in the roadbed bed can be discharged through the rubble layer and the gabion shoulder pad that permeate water, and the drainage ability is good.

Description

Railway road shoulder
Technical Field
The invention relates to the field of civil engineering facilities, in particular to a railway shoulder.
Background
The existing railway roadbed road shoulder is provided with a water drainage hole in a shoulder pad outside a cable duct, so that the problem that the position of the water drainage hole of the cable duct is difficult to correspond to a water drainage hole of the shoulder pad or the problem that the water drainage hole of the shoulder pad is difficult to correspond to the water drainage hole of the shoulder pad or the problem that the water drainage hole of the shoulder pad is difficult to construct is easily caused. Meanwhile, the traditional cast-in-place concrete shoulder pad construction process is complex, and the construction quality is difficult to control. Therefore, a railway cable trough shoulder protector with good drainage effect, simple construction and low cost and with popularization and application prospects is urgently needed to solve or at least alleviate the problems.
Disclosure of Invention
In view of the above-mentioned problems in the prior art, the present application provides a railroad shoulder for solving all or part of the above-mentioned technical problems.
The application provides a railway curb, includes:
a cable trough;
the permeable gravel layer is arranged at the bottom of the cable groove and on one side close to the line;
the gabion shoulder protector is arranged on one side, away from the circuit, of the cable groove and can permeate water;
a composite geomembrane waterproof reversed filter layer which is arranged between the permeable gravel layer and a roadbed foundation layer and between the gabion shoulder pad and the roadbed foundation layer, is used for preventing water from flowing into the roadbed foundation layer from the permeable gravel layer or the gabion shoulder pad and preventing fine soil from reversely flowing into the permeable gravel layer or the gabion shoulder pad from the roadbed foundation layer;
the non-woven geotextile reversed filter layer is arranged between the permeable rubble layer and the surface layer of the roadbed and is used for preventing fine soil from flowing back into the permeable rubble layer from the surface layer of the roadbed;
the bottom and the side face of the cable trough are provided with drain holes communicated with the gabion shoulder protectors, so that accumulated water in the cable trough can be drained through the drain holes and the gabion shoulder protectors.
In one embodiment, the gabion shoulder pad comprises a gabion mesh box and stone filled in the gabion mesh box.
In one embodiment, the check net box is woven by metal wires or welded by metal wires, and the metal wires are plated steel wires or plastic-coated steel wires.
In one embodiment, the mesh of the gabion box is configured as a hexagon, the size of the hexagonal mesh being 40-100 mm.
In one embodiment, the stone material comprises rock and/or crushed stone and/or pebble material.
In one embodiment, the particle size of the lump and/or crushed stone and/or the egg stone material is 40-120 mm.
In one embodiment, the diameter of the drainage holes is 50mm, and the distance between adjacent drainage holes is 0.5-1.0 m.
In one embodiment, the composite geomembrane waterproofing reverse filter extends from the outside of the shoulder pad inwards to 50cm inside the cable side.
In one embodiment, the composite geomembrane waterproofing reverse filter layer is a two-cloth one-film composite geomembrane waterproofing reverse filter layer having a weight of more than 600g/m2Permeability coefficient of not more than 10-11/cm/s, breaking strength greater than 20kN/m, and CBR bursting strength is largeAnd at 2.5kN, the thickness of the high-density polyethylene geomembrane film between the upper geotextile and the lower geotextile is not less than 0.3 mm.
In one embodiment, the crushed stone of the water-permeable gravel layer has a particle size of 10 to 40 mm.
Compared with the prior art, the method has the following advantages:
1) the utility model provides a gabion road shoulder includes the cable duct, rubble layer and gabion shoulder pad permeate water, and the gabion road shoulder of this application not only can make ponding in the cable duct discharge through outlet and gabion shoulder pad to can make the water that permeates in the roadbed of the roadbed discharge through rubble layer and gabion shoulder pad of permeating water, the drainage ability is good.
2) The gabion shoulder pad is composed of the gabion grids and the gravels filled in the gabion grids, and compared with the traditional precast concrete gabion assembly, the prefabricated concrete gabion assembly has the advantage that a drainage channel needs to be additionally arranged in the prefabricated concrete gabion assembly, and the problem that drainage holes in the side face of a cable trough and the drainage channel additionally arranged on the concrete shoulder pad are difficult to correspond or difficult to construct is solved.
3) The utility model provides a gabion curb is through setting up the discharge opening that communicates gabion shoulder pad in the bottom and the side of cable duct, has increased the sluicing passageway, has improved the drainage performance of railway curb.
4) The strength of the gabion shoulder pad is different from masonry, concrete pouring and the like, the gabion shoulder pad is not influenced by self strength of mortar and concrete, the gabion shoulder pad is filled at any time, and the strength meets the requirement. The complex construction process of the cast-in-place concrete roadbed is reduced, the construction difficulty of constructors is reduced, the operation efficiency is improved, and good engineering benefit and economic benefit are achieved.
The features mentioned above can be combined in various suitable ways or replaced by equivalent features as long as the object of the invention is achieved.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 shows a schematic structural view of a railway shoulder according to the prior art.
Figure 2 shows a schematic diagram of a railway shoulder according to the present application.
Figure 3 shows a schematic view of another railway shoulder according to the present application.
Fig. 4 shows a first schematic view of the construction of a gabion box according to the present application.
FIG. 5 shows a schematic diagram of a construction of a check-up net cage according to the present application.
In the drawings, like parts are provided with like reference numerals. The drawings are not to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, which shows a cross-sectional view of a railway shoulder disclosed in the prior art, the shoulder protector 10 of the railway roadbed is formed by casting concrete in situ, and when the concrete is cast, drainage channels 11 and 12 need to be reserved, the position of the drainage channel 11 needs to correspond to the position of a drainage hole 21 on the side surface of a cable trough 20, so that the construction difficulty is high, the drainage channel 12 on one side of a permeable gravel layer is easily blocked by silt, and once the drainage channel 12 is blocked by silt, the drainage channel 12 is difficult to dredge without damaging the shoulder protector.
In the railway roadbed, the top of the top surface 30 of the bottom layer of the foundation bed is also provided with a leveling layer 40, namely the leveling layer 40 is arranged between the top surface 30 of the bottom layer of the foundation bed and the cable trough. The bed bottom surface 50 of the cable trough 20 on the side remote from the shoulder guard 10 is backfilled with concrete. The construction time is long and the construction difficulty is high.
Fig. 2 shows a cross-sectional view of a railway roadbed comprising a cable trough 1, a permeable gravel layer 2, a gabion shoulder 3, a composite geomembrane waterproof filter 4 and a non-woven geotextile filter 8 according to the present application. The gravel layer 2 that permeates water sets up in the bottom of cable duct 1 and the one side that is close to the circuit, and the gabion shoulder pad 3 sets up in the one side that the circuit was kept away from to cable duct 1. The waterproof inverted filter layer 4 of compound geomembrane sets up between rubble layer 2 and roadbed foundation bed bottom 5 and gabion shoulder pad 3 and roadbed foundation bed bottom 5 for prevent water from permeating water rubble layer 2 or gabion shoulder pad 3 and flow into roadbed foundation bed bottom 5, and be used for preventing that fine grained soil from permeating water rubble layer 2 or gabion shoulder pad 3 backward flow from roadbed foundation bed bottom 5.
The non-woven geotextile reversed filter layer 8 is arranged between the permeable rubble layer 2 and the roadbed surface layer 6 and used for preventing fine soil from reversely flowing into the permeable rubble layer 2 from the roadbed surface layer 6. Wherein, the lap length between the non-woven geotextile reversed filter layer 100 and the composite geomembrane waterproof reversed filter layer 70 is not less than 5 cm. In the embodiment shown in fig. 2, the composite geomembrane waterproofing reverse filter layer 4 extends from the outside of the gabion shoulder 3 inwards to about 50cm inside the cable trough 1. The composite geomembrane waterproof reverse filter layer 4 is preferably a composite geomembrane waterproof reverse filter layer with two cloth films and one film, and the weight of the composite geomembrane waterproof reverse filter layer with two cloth films and one film is more than 600g/m2Permeability coefficient of not more than 10-11The rupture strength is more than 20kN/m, the CBR bursting strength is more than 2.5kN, and the thickness of the high-density polyethylene geomembrane film between the upper geotextile and the lower geotextile is not less than 0.3 mm. The material of the non-woven geotextile reverse filter layer 8 is the same as the material of the cloth of the upper layer and the lower layer of the two cloth-film type composite geomembrane waterproof reverse filter layer 4.
Wherein, check guest shoulder pad 3 includes check guest headstock 31 and fills the building stones 32 in check guest headstock 31 for check guest shoulder pad 3 can permeate water, and the bottom and the side of cable duct 1 are equipped with the outlet 11 that communicates check guest shoulder pad 3, so that ponding in the cable duct 1 can be discharged through outlet 11 and check guest shoulder pad 3.
The drainage holes 11 comprise vertical drainage holes 111 and horizontal drainage holes 112 which are arranged at the bottom of the cable trough 1, so that water in the cable trough 1 can be discharged into the permeable gravel layer 2 through the vertical drainage holes 111 and can flow into the gabion shoulder protectors 3 through the horizontal drainage holes 112, wherein the water flowing into the permeable gravel layer 2 on the surface layer of the roadbed is finally discharged through the gabion shoulder protectors 3 because the roadbed of the railway roadbed has a gradient of 4%.
Preferably, the diameter of the drainage holes 11 is preferably 50mm, and the distance between adjacent drainage holes 11 (along the longitudinal direction of the line) is 0.5-1.0 m.
Preferably, as shown in fig. 2, the permeable gravel layer 2 is provided with a cement mortar layer 7 on the top near the right side of the cable trough 1, and the thickness of the cement mortar layer 7 is preferably 10 cm. The purpose of the arrangement in the cement mortar layer 7 is to prevent rainwater and the like from directly entering the permeable gravel layer 2. Wherein, the particle size of the broken stone of the permeable gravel layer 2 is preferably 10-40 mm.
In the embodiment shown in fig. 3, the gabion shoulder pad according to the present application may further comprise a top cover 33 provided above the gabion mesh box 31, the top cover 33 being prefabricated from concrete. Not only makes the gabion shoulder protector look more beautiful, but also if the constructor needs to walk above, the top cover 4 can make the constructor walk more comfortably and conveniently.
As shown in fig. 4, the bingo box 31 includes a side net part 310 surrounded by side net plates 311, and a front net plate 312 and a rear net plate 313 respectively joined to both ends of the side net part 310. A partition 314 is arranged between the front screen plate 312 and the rear screen plate 313, the partition 314 is arranged along the length direction of the check-up net box 31, the length of the side screen part 311 of the check-up net box 31 is preferably 2-4 m, and the distance between the adjacent partitions 314 is preferably 1-1.5 m.
The side net part 310 is fixed by a connecting member (not shown) at the position where it is combined with the front net plate 312, the rear net plate 313 and the partition 314. The connecting piece is a fastener or a binding steel wire, the diameter of the binding steel wire is not less than 2.2mm, and the preferred binding distance is 200-250 mm. The fasteners or tie wires may be made of the same material as the side web 311.
Wherein, the side net plate 311 is preferably made by weaving metal wires, and the baffle plate 314 is preferably made by welding metal wires. The baffle 314 adopts the welded mode can be fine improvement baffle 314's intensity, better plays the supporting role. The side net plate 311, the front net plate 312 and the rear net plate 313 are formed by adopting a metal wire weaving mode, and the weaving mode saves manufacturing working hours.
The side net part 310 is integrally formed or formed by connecting independent side net plates 311. That is, the side net plate 311 may be integrated, or may be formed by connecting separate single-piece-shaped plates through a connecting member.
The side wire part 310 is configured in a trapezoidal longitudinal section. Preferably, the slope of the hypotenuse of the check-up net box 31 is not less than the slope of the roadbed slope.
In the embodiment shown in fig. 4, the meshes of the side net plates 311 are configured in a hexagonal shape, and the meshes of the partition plates 314 are configured in a quadrangular shape. It is understood that, as shown in fig. 5, the meshes of the partition 314 may also be configured in the same hexagonal shape as the side mesh plates 311. Or, the meshes of the side net plate 311 and the meshes of the partition 314 are all configured in other shapes, the application is not limited, and the sizes of the meshes of the side net plate 311 and the meshes of the partition 314 are 40-100 mm.
The wire diameter of the side net plate 311 is not less than 2.2mm, and the wire diameter of the separator 314 is not less than 3.0 mm.
In one embodiment, the wires of the side screen 311 and/or the wires of the spacer 314 and/or the front screen 312 and/or the rear screen 313 are coated or overmolded steel wires. That is, the side mesh plate 311, the partition 314, the front mesh plate 312 and the rear mesh plate 313 may be combined in any manner, for example: the side net plate 311, the partition 314 and the front net plate 312 are made of plated steel wires or plastic-coated steel wires, and the rear net plate 313 is made of other materials. Or, the side net plates 311, the partition plates 314, the front net plate 312 and the rear net plate 313 are all plated steel wires or plastic-coated steel wires. Preferably, the tensile strength of the steel wire is between 350 and 550MPa, the elongation is not lower than 12 percent, and the coating weight is not lower than 245g/m2。
It can be understood that the metal wires of the side mesh plate 311 and/or the metal wires of the partition plate 314 and/or the front mesh plate 312 and/or the rear mesh plate 313 may also be low-carbon steel wires, and the technical requirements, coating weight, mechanical properties, and inspection methods of the low-carbon steel wire material and the low-carbon steel wire material must meet the relevant regulations in the standards of YB/T4221-.
The stone material includes lump stones and/or crushed stones and/or pebble materials, and the lump stones, crushed stones and pebble materials may be combined in any manner, but preferably, the stone material filled in the check net box 31 is a single lump stone, a single crushed stone or a single pebble material. Wherein the stone material is formed by crushing and screening kaishan rock block and natural pebbles. Preferably, the crushed stone and/or egg material has a particle size of 40-120 mm.
The strength grade of the filling stone is not less than MU30, and the filling stone is weather-resistant and non-hydrolytic. The stone material does not contain humus and chemical and electrochemical impurities which are corrosive to the steel wires on the net surface. The technical parameter requirements of stone firmness, mud content and the like need to meet the I type technical requirements in the building pebble and gravel standard.
In summary, the present application has the following advantages:
1) the utility model provides a gabion road shoulder includes the cable duct, rubble layer and gabion shoulder pad permeate water, and the gabion road shoulder of this application not only can make ponding in the cable duct discharge through outlet and gabion shoulder pad to can make the water in the roadbed of road bed discharge through rubble layer and the gabion shoulder pad of permeating water, the drainage ability is good.
2) The gabion shoulder pad is composed of the gabion grids and the gravels filled in the gabion grids, and compared with the traditional precast concrete gabion assembly, the prefabricated concrete gabion assembly has the advantage that a drainage channel needs to be additionally arranged in the prefabricated concrete gabion assembly, and the problem that drainage holes in the side face of a cable trough and the drainage channel additionally arranged on the concrete shoulder pad are difficult to correspond or difficult to construct is solved.
3) The utility model provides a gabion curb is through setting up the discharge opening that communicates gabion shoulder pad in the bottom and the side of cable duct, has increased the sluicing passageway, has improved the drainage performance of railway curb.
4) The strength of the gabion shoulder pad is different from masonry, concrete pouring and the like, the gabion shoulder pad is not influenced by self strength of mortar and concrete, the gabion shoulder pad is filled at any time, and the strength meets the requirement. The complex construction process of the cast-in-place concrete roadbed is reduced, the construction difficulty of constructors is reduced, the operation efficiency is improved, and good engineering benefit and economic benefit are achieved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.

Claims (10)

1. A railroad shoulder, comprising:
a cable trough;
the permeable gravel layer is arranged on one side of the cable groove close to the line;
the gabion shoulder protector is arranged on one side, away from the circuit, of the cable groove and can permeate water;
a composite geomembrane waterproof reversed filter layer which is arranged between the permeable gravel layer and a roadbed foundation layer and between the gabion shoulder pad and the roadbed foundation layer, is used for preventing water from flowing into the roadbed foundation layer from the permeable gravel layer or the gabion shoulder pad and preventing fine soil from reversely flowing into the permeable gravel layer or the gabion shoulder pad from the roadbed foundation layer;
the non-woven geotextile reversed filter layer is arranged between the permeable rubble layer and the surface layer of the roadbed and is used for preventing fine soil from flowing back into the permeable rubble layer from the surface layer of the roadbed;
the bottom and the side face of the cable trough are provided with drain holes communicated with the gabion shoulder protectors, so that accumulated water in the cable trough can be drained through the drain holes and the gabion shoulder protectors.
2. The railway curb of claim 1, wherein the gabion shoulder guard comprises a gabion mesh box and stone filled in the gabion mesh box.
3. The railroad shoulder of claim 1, wherein the gabion mesh boxes are woven or welded from metal wires, which are plated or plastic-coated steel wires, in a mesh pattern.
4. A railway shoulder as claimed in claim 3, characterized in that the mesh of the gabion box is configured as a hexagon, the size of the hexagonal mesh being 40-100 mm.
5. A railway shoulder as claimed in claim 2 wherein the stone comprises rock block and/or gravel and/or pebble material.
6. A railway shoulder as claimed in claim 5, characterized in that the grain size of the stones and/or rubbles and/or cobbles is 40-120 mm.
7. A railway shoulder as claimed in claim 1 wherein the weep holes have a diameter of 50mm and a spacing of 0.5-1.0m between adjacent weep holes.
8. The railway shoulder of claim 1 wherein the composite geomembrane waterproofing reverse filter extends from the outside of the shoulder pad inwardly to 50cm inboard of the cable side.
9. The railway shoulder of claim 8 wherein the composite geomembrane waterproofing reverse filter is a two cloth-in-one membrane composite geomembrane waterproofing reverse filter having a weight of more than 600g/m2Permeability coefficient of not more than 10-11The rupture strength is more than 20kN/m, the CBR bursting strength is more than 2.5kN, and the thickness of the high-density polyethylene geomembrane film between the upper geotextile and the lower geotextile is not less than 0.3 mm.
10. The railway shoulder of claim 1, wherein the crushed stone of the water permeable crushed stone layer has a particle size of 10-40 mm.
CN201911411069.2A 2019-12-31 2019-12-31 Railway road shoulder Pending CN111118968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911411069.2A CN111118968A (en) 2019-12-31 2019-12-31 Railway road shoulder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911411069.2A CN111118968A (en) 2019-12-31 2019-12-31 Railway road shoulder

Publications (1)

Publication Number Publication Date
CN111118968A true CN111118968A (en) 2020-05-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911411069.2A Pending CN111118968A (en) 2019-12-31 2019-12-31 Railway road shoulder

Country Status (1)

Country Link
CN (1) CN111118968A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113373750A (en) * 2021-06-30 2021-09-10 中铁二院工程集团有限责任公司 Steep slope high-fill-section roadbed structure and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113373750A (en) * 2021-06-30 2021-09-10 中铁二院工程集团有限责任公司 Steep slope high-fill-section roadbed structure and construction method thereof
CN113373750B (en) * 2021-06-30 2022-05-24 中铁二院工程集团有限责任公司 Steep slope high-fill-section roadbed structure and construction method thereof

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