CN111181120A - Integrated railway cable trough structure and construction method - Google Patents
Integrated railway cable trough structure and construction method Download PDFInfo
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- CN111181120A CN111181120A CN201911027321.XA CN201911027321A CN111181120A CN 111181120 A CN111181120 A CN 111181120A CN 201911027321 A CN201911027321 A CN 201911027321A CN 111181120 A CN111181120 A CN 111181120A
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- 238000010276 construction Methods 0.000 title abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000010410 layer Substances 0.000 claims abstract description 22
- 239000002344 surface layer Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000004575 stone Substances 0.000 description 12
- 239000000428 dust Substances 0.000 description 7
- 230000001012 protector Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000009417 prefabrication Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/008—Drainage of track
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The integrated railway cable trough structure and the construction method effectively simplify construction procedures, improve construction convenience and economy of the cable trough structure, and are beneficial to ensuring construction quality. The bottom surfaces of the cable trough components are located on the bottom layer of the foundation bed, and the cable trough components on two sides of the surface layer of the foundation bed are used as side molds to be filled and compacted in a layered and layered mode; vertical plates fixedly connected with the bottom plate into a whole are arranged between the outer vertical wall and the inner vertical wall of the cable trough component, an inner cavity is divided into two cable troughs, and short water drainage holes penetrating through the vertical plates and the outer vertical wall are longitudinally arranged on the top surface of the bottom plate at intervals; the bottom plate of the cable trough component transversely extends out of an outward extending boss of a roadbed side slope, the outer edge of the outward extending boss is upwards raised to form a water retaining edge, through long water drainage holes are longitudinally arranged in the bottom plate at intervals, the inner end of each long water drainage hole is in direct connection with the surface of the bottom layer of the foundation bed, and the outer end of each long water drainage hole leads to the water retaining edge; and a prefabricated cover plate for covering the upper port of the cable trough is arranged at the top of the cable trough component.
Description
Technical Field
The invention relates to railway engineering, in particular to an integrated railway cable trough structure and a construction method.
Technical Field
The railway cable groove, the shoulder pad and the water retaining edge need to be arranged on a road shoulder of a roadbed, and the current common method is that after the construction of the roadbed is completed, a cutting method is adopted to remove a roadbed surface layer filling body at the position of the filled road shoulder, the water retaining edge is cast in situ, and then the cable groove and the shoulder pad are prefabricated. The structure and the construction method have the problems of extremely complicated construction process, difficult alignment and easy blockage of shoulder protectors and cable duct drain holes, difficult cutting of graded broken stones, low working efficiency, large cutting dust, environmental pollution and the like.
The utility model discloses a high-speed railway roadbed cable duct structure is disclosed in the utility model patent of the publication number CN 205591054U of granting, the cable duct structure that this patent provided includes the supporting key, the loading board, closed platform and prefabricated cable duct, this structure has been solved shoulder pad and cable duct outlet and has been difficult for aligning and block up easily, cutting grading rubble difficulty and work efficiency are low, the big polluted environment's of cutting dust problem, but its supporting key must bury in filling closely knit roadbed and the opposite side is the structure of encorbelmenting, the existence still needs the fluting to cause the work efficiency low to existing road bed, bury deeper scheduling problem for guaranteeing stable in structure supporting key.
The invention discloses a novel cable groove structure of a railway passenger special line roadbed, which comprises a groove body prefabricated part, a cover plate prefabricated part and a water retaining edge, and solves the problems that the construction process is extremely complicated, shoulder protectors are not easy to align with drain holes of a cable groove and are easy to block, but the height of the cable groove structure in the structure is high, and if a construction method of cutting graded broken stones firstly and then installing the cable groove is adopted, the problems that the graded broken stones are difficult to cut, the working efficiency is low, and the environment is polluted by cutting dust greatly exist; if the cable trough structure is adopted as a template to fill graded broken stones, the problems that the trough body of the cable trough is cracked, the cable trough is pushed to be deviated and the like due to mechanical vibration and rolling of the graded broken stones exist.
In the invention patent application publication specification with publication number CN 109487641 a, an integral cable trough structure of a high-speed railway and a foundation bed surface layer construction method are disclosed, wherein the cable trough structure comprises a cable trough, a cover plate, a trough-shaped cavity and the like, and the structure solves the problems that the construction process is extremely complicated, shoulder protectors and cable trough drain holes are not easy to align and block, graded broken stones are difficult to cut, the work efficiency is low, the environment is greatly polluted by cutting dust and the like. But the concrete base has larger masonry and higher cost; in addition, no drainage hole is formed in the base, accumulated water in the surface layer of the foundation bed cannot be drained smoothly, and roadbed diseases are easy to cause; the structure still has parts such as a base, a cable trough clapboard, a water retaining edge and the like, and the construction process is still more complicated.
Therefore, a new railway roadbed cable trough structure needs to be researched, the existing problems can be effectively solved, and meanwhile, the novel railway roadbed cable trough structure needs to have the characteristics of economy, environmental protection, construction convenience and the like.
Disclosure of Invention
The invention aims to solve the technical problem of providing an integrated railway cable trough structure, so as to effectively simplify the construction process, improve the construction convenience and economy of the cable trough structure and be beneficial to ensuring the construction quality.
The invention solves the technical scheme adopted by the prior art as follows:
the invention discloses an integrated railway cable trough structure, which comprises cable trough components arranged at the road shoulder parts at the two transverse sides of a roadbed, wherein the roadbed is composed of a foundation bed bottom layer and a foundation bed surface layer filled on the foundation bed bottom layer, and the integrated railway cable trough structure is characterized in that: the bottom surfaces of the cable trough components are located on the bottom layer of the foundation bed, and the cable trough components on two sides of the surface layer of the foundation bed are used as side molds to be filled and compacted in a layered and layered mode; vertical plates fixedly connected with the bottom plate into a whole are arranged between the outer vertical wall and the inner vertical wall of the cable trough component, an inner cavity is divided into two cable troughs, and short water drainage holes penetrating through the vertical plates and the outer vertical wall are longitudinally arranged on the top surface of the bottom plate at intervals; the bottom plate of the cable trough component transversely extends out of an outward extending boss of a roadbed side slope, the outer edge of the outward extending boss is upwards raised to form a water retaining edge, through long water drainage holes are longitudinally arranged in the bottom plate at intervals, the inner end of each long water drainage hole is in direct connection with the surface of the bottom layer of the foundation bed, and the outer end of each long water drainage hole leads to the water retaining edge; and a prefabricated cover plate for covering the upper port of the cable trough is arranged at the top of the cable trough component.
The invention aims to solve another technical problem of providing a construction method of an integrated railway cable trough structure, wherein the construction method is simple and comprises the following steps:
filling a foundation bed bottom layer below a foundation bed surface layer structure in a layered mode;
secondly, casting or placing cable trough components on the two transverse sides of the top surface of the bottom layer of the foundation bed;
thirdly, the cable trough components on two sides are used as side molds, and the surface layer of the foundation bed is filled and compacted in a layered mode.
The beneficial effects of the invention are shown in the following aspects:
the cable trough, the shoulder protectors and the water retaining edges are simplified and combined into a whole, so that the construction procedures in the prior art and the traditional technology are greatly reduced, and the work efficiency is high;
accumulated water in the cable groove is directly drained to the boss through the short drain hole, the drainage path is short, and accumulated water in the groove is not easy to cause;
thirdly, accumulated water in the surface layer of the foundation bed can be directly drained to the boss through the long drain hole and is connected into a side slope drainage system, so that drainage is fast;
the cable trough and the water retaining edge are combined into a whole, the bottom surface of the structure is wide, the gravity center is low, the side pressure generated by rolling the graded broken stone through mechanical vibration can be effectively resisted, and the problems that the traditional graded broken stone is difficult to cut, the work efficiency is low, the environment is greatly polluted by cutting dust and the like are solved;
five, the integral cable trough structure masonry is smaller than the traditional and the existing structure of the patent, and is reduced by 0.24m compared with the traditional mode (two sides)3The engineering investment is saved;
sixthly, the horizontal distance from the groove body of the cable groove to the lug boss is greatly shortened, the roadbed filling width (two sides) is reduced by about 1.48m compared with the traditional mode, and the land is saved.
The invention effectively solves the problems of more and complicated construction procedures, difficult alignment and easy blockage of drain holes, insufficient stability of the structure of the cable duct, difficult cutting of graded broken stones, low work efficiency, large cutting dust, environmental pollution and the like in the traditional and the existing patents and patent applications, and has the advantages of convenient construction, good economy and the like.
Drawings
The specification includes the following three drawings:
FIG. 1 is a schematic view of a conventional railway roadbed cable trough and shoulder pad structure;
the names and corresponding labels of the main components are shown in fig. 1: the method comprises the following steps of (1) preparing a foundation bed surface layer A, a foundation bed bottom layer B, a contact net stand C, a traditional cable trough D, a prefabricated cover plate 20, a shoulder protector 30, a water drainage hole 31, a prefabricated water retaining edge 40, a water-proof drainage plate 50 and a permeable gravel or gravel cushion layer 60;
fig. 2 is a sectional view of the integrated cable trough structure of the present invention.
Fig. 3 is a large drawing of the integral cable trough structure of the present invention.
The names and corresponding labels of the main components are shown in fig. 2, 3: the structure comprises a foundation bed surface layer A, a foundation bed bottom layer B, a contact net upright C, a cable trough member 10, an outer upright wall 11a, an inner upright wall 11B, upright plates 12, a cable trough 13, an outward extending boss 14, a short drainage hole 15, a long drainage hole 16 and a prefabricated cover plate 20.
Detailed Description
The invention is further illustrated by the following specific examples in conjunction with the accompanying drawings.
Referring to fig. 2 and 3, the integrated railway cable trough structure of the present invention includes cable trough members 10 provided at both lateral side shoulder portions of a roadbed, the roadbed being composed of a bed bottom layer B and a bed surface layer a filled thereon. The bottom surface of the cable trough member 10 is seated on the bed bottom layer B, and the bed surface layer A is filled and compacted in a layered and layered mode by taking the cable trough members 10 on two sides as side molds. A vertical plate 12 fixedly connected with a bottom plate into a whole is arranged between an outer vertical wall 11a and an inner vertical wall 11B of the cable trough component 10, an inner cavity is separated to form two cable troughs 13, short water drainage holes 15 penetrating through the vertical plate 12 and the outer vertical wall 11a are arranged on the top surface of the bottom plate at intervals along the longitudinal direction, an overhanging lug boss 14 of a roadbed slope transversely extends out of the bottom plate, the outer edge of the overhanging lug boss 14 is upwards raised to form a water retaining edge, penetrating long water drainage holes 16 are arranged in the bottom plate at intervals along the longitudinal direction, the inner end of each long water drainage hole 16 is in direct connection with the surface of a foundation bed bottom layer B, and the outer end of each long water. On top of the cable trough member 10 a prefabricated cover plate 20 is provided covering the ports on the cable trough 13. The cable trough member 10 may be of a cast-in-place or prefabricated reinforced concrete structure.
Referring to fig. 1 and 2, the present invention simplifies and integrates the conventional cable channel D, shoulder protectors 30 and prefabricated water retaining edges 40, eliminates the conventional permeable gravel or gravel cushion 60 and water drainage preventing plate 50, greatly reduces the construction processes in the conventional and prior art, and can greatly improve the construction efficiency and work efficiency.
Referring to fig. 2 and 3, accumulated water in the cable trough 13 is directly drained to the convex outward-extending boss 14 through the short drain hole 15, the drainage path is short, and accumulated water in the trough is not easy to cause. Accumulated water in the surface layer A of the foundation bed can be directly drained to the outward extending boss 14 through the long drain hole 16 and is connected into a side slope drainage system through the water retaining edge, and drainage is fast. The masonry of the integrated cable trough structure of the invention is smaller than the traditional and prior art constructions and is reduced by 0.24m compared to the traditional way (both sides)3And the engineering investment is saved. The horizontal distance from the groove body of the cable groove to the outward extending boss 14 is greatly shortened, the roadbed filling width (two sides) is reduced by about 1.48m compared with the traditional mode, and the land is saved.
Referring to fig. 2, the construction method of the integrated railway cable trough structure of the invention comprises the following steps:
filling a foundation bed bottom layer B below a foundation bed surface layer structure A in a layered mode;
casting or placing cable trough members 10 on the two transverse sides of the top surface of the bottom layer B of the foundation bed;
③, the cable trough components 10 on two sides are used as side molds, and the surface layer (A) of the foundation bed is filled and compacted in a layered mode.
The invention effectively solves the problems of more and complicated construction procedures, difficult alignment and easy blockage of drain holes, insufficient stability of the structure of the cable duct, difficult cutting of graded broken stones, low work efficiency, large cutting dust, environmental pollution and the like in the traditional and existing patent and patent application structures, and has the advantages of convenient construction, good economy and the like.
The economic benefits are compared as follows:
the length of railway roadbed is 1 km, and only the construction cost of cable channels, shoulder pads and water drainage holes, masonry increase and decrease and land use cost (based on the traditional cutting method) are compared, the labor cost is 400 yuan/day, the reinforced concrete is calculated according to 1200 yuan, the composite water-proof and drainage plate is calculated according to 30 yuan or one level, the gravel stone cushion layer is calculated according to 220 yuan or one level, and the land is permanently calculated according to 20 mu. The traditional cable trough is manually assembled in situ by factory prefabrication, and the cable trough structure adopts cast-in-situ or factory prefabrication construction.
The first scheme is as follows: construction by traditional cutting method (two sides of the line)
1. And (3) surface layer cutting construction: 2 people x 4 days x 400 yuan (3200 yuan)
2. The composite waterproof and drainage plate material and the construction: 2.6X 1000X 30 +2 persons X2 days X400-79600 yuan
3. Gravel stone cushion material and construction: 0.2 × 1000 × 220 yuan +2 persons × 3 days × 400 yuan ═ 46400 yuan
4. And (3) cable trough installation and construction: 2 people x 3 days x 400 yuan ═ 2400 yuan
5. Shoulder protection construction: 2 people x 4 days x 400 yuan (3200 yuan)
6. Cable duct prefabrication construction: 1800 Yuan
7. Cable trough masonry increase and decrease: 0 yuan
8. Land utilization is reduced: 0 yuan
Total construction and land increase and decrease costs: +136600 yuan
Scheme II: the invention discloses a high-speed railway integral cable trough structure and a foundation bed surface layer construction method (two sides of a line)
1. Binding the reinforcing steel bars of the cable trough: 2 people x 3 days x 400 yuan ═ 2400 yuan
2. And (3) cable trough scraping mold construction: 2 people x 1 day x 400 yuan ═ 800 yuan
3. Lease fee of the cable trough scraping machine: 1 day x 2000 yuan to 2000 yuan
4. Cost increase and decrease of masonry: +0.03 × 2000 × 1200 ═ 72000 units
4. Land utilization is reduced: -0.44 × 1000/666.7 × 200000-131993-membered
Total construction and land increase and decrease costs: -54793 element
The third scheme is as follows: integrated railway cable trough structure and construction method adopting same
1. Binding the reinforcing steel bars of the cable trough: 2 people x 3 days x 400 yuan ═ 2400 yuan
2. And (3) cable trough scraping mold construction: 2 people x 2 days x 400 yuan 1600 yuan
3. Lease fee of the cable trough scraping machine: 1 day x 2000 yuan to 2000 yuan
4. Cost increase and decrease of masonry: -0.12 × 2000 × 1200 ═ 288000 units
5. Land utilization is reduced: -1.48 × 1000/666.7 × 200000-443978-membered
Total construction and land increase and decrease costs: -725978 yuan
Compared with the scheme I of traditional cutting method construction, the investment per kilometer is saved by 86.3 ten thousand, compared with the scheme II of integral cable trough structure of high-speed railway and foundation bed surface layer construction, the investment is saved by 67.1 thousand, and the economic benefit is very obvious.
The foregoing is illustrative of the principles of the present invention for an integrated railway cable trough structure and method of construction, and is not intended to limit the invention to the exact construction and application shown and described, and accordingly, all modifications and equivalents thereof that may be resorted to are intended to fall within the scope of the invention.
Claims (5)
1. Integral type railway cable duct structure, including setting up in cable duct component (10) at the horizontal both sides curb position of road bed, the road bed comprises foundation bed bottom (B) and foundation bed top layer (A) of filling above that, characterized by: the bottom surface of the cable trough component (10) is located on the foundation bed bottom layer (B), and the foundation bed surface layer (A) takes the cable trough components (10) on two sides as side molds to be filled and compacted in a layered and layered mode; a vertical plate (12) which is fixedly connected with the bottom plate into a whole is arranged between the outer vertical wall (11a) and the inner vertical wall (11b) of the cable trough member (10), an inner cavity is divided into two cable troughs (13), and short water drainage holes (15) which penetrate through the vertical plate (12) and the outer vertical wall (11a) are arranged on the top surface of the bottom plate at intervals along the longitudinal direction; the bottom plate of the cable trough component (10) transversely extends out of an overhanging lug boss (14) of a roadbed side slope, the outer edge of the overhanging lug boss (14) is upwards raised to form a water retaining edge, through long water drainage holes (16) are longitudinally arranged in the bottom plate at intervals, the inner end of each long water drainage hole (16) is in direct connection with the surface of a foundation bed bottom layer (B), and the outer end of each long water drainage hole is communicated with the water retaining edge; and a prefabricated cover plate (20) for covering the upper port of the cable trough (13) is arranged at the top of the cable trough component (10).
2. The integrated railway cable trough structure of claim 1, wherein: the cable trough member (10) adopts a cast-in-place or prefabricated reinforced concrete structure.
3. The integrated railway cable trough structure of claim 1, wherein: the thickness of the inner side vertical wall (11b) is 15-20 cm.
4. The integrated railway cable trough structure of claim 1, wherein: the width of the outward extending boss (14) extending out of the outer side vertical wall (11a) is 20-25 cm.
5. The method for constructing an integrated railway cable trough structure according to any one of claims 1 to 4, comprising the steps of:
filling a foundation bed bottom layer (B) below a foundation bed surface layer structure (A) in a layered mode;
②, casting or placing cable trough members (10) on the two transverse sides of the top surface of the foundation bed bottom layer (B);
thirdly, the cable trough components (10) on two sides are used as side molds, and the surface layer (A) of the foundation bed is filled and compacted in a layered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027321.XA CN111181120A (en) | 2019-10-27 | 2019-10-27 | Integrated railway cable trough structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911027321.XA CN111181120A (en) | 2019-10-27 | 2019-10-27 | Integrated railway cable trough structure and construction method |
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| Publication Number | Publication Date |
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| CN111181120A true CN111181120A (en) | 2020-05-19 |
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| CN201911027321.XA Pending CN111181120A (en) | 2019-10-27 | 2019-10-27 | Integrated railway cable trough structure and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827011A (en) * | 2020-08-06 | 2020-10-27 | 中国铁路设计集团有限公司 | Novel railway shoulder structure and construction method |
| CN115142307A (en) * | 2022-08-29 | 2022-10-04 | 中铁上海工程局集团第三工程有限公司 | Equipment and method for cross-rail installation of railway auxiliary facilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757995A (en) * | 2014-02-13 | 2014-04-30 | 铁道第三勘察设计院集团有限公司 | Ballastless track railroad roadbed surface water sealing layer structure |
| CN108347025A (en) * | 2018-02-02 | 2018-07-31 | 中铁二院工程集团有限责任公司 | Railway passenger traffic line novel cable slot structure |
| CN109487641A (en) * | 2018-12-12 | 2019-03-19 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway monoblock type cable slot structure and surface layer of subgrade bed construction method |
| CN209260447U (en) * | 2018-10-09 | 2019-08-16 | 中铁二院工程集团有限责任公司 | Electric railway integral assembling formula shoulder protector structure |
| CN210780020U (en) * | 2019-10-27 | 2020-06-16 | 中铁二院工程集团有限责任公司 | Integrated railway cable trough structure |
-
2019
- 2019-10-27 CN CN201911027321.XA patent/CN111181120A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103757995A (en) * | 2014-02-13 | 2014-04-30 | 铁道第三勘察设计院集团有限公司 | Ballastless track railroad roadbed surface water sealing layer structure |
| CN108347025A (en) * | 2018-02-02 | 2018-07-31 | 中铁二院工程集团有限责任公司 | Railway passenger traffic line novel cable slot structure |
| CN209260447U (en) * | 2018-10-09 | 2019-08-16 | 中铁二院工程集团有限责任公司 | Electric railway integral assembling formula shoulder protector structure |
| CN109487641A (en) * | 2018-12-12 | 2019-03-19 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway monoblock type cable slot structure and surface layer of subgrade bed construction method |
| CN210780020U (en) * | 2019-10-27 | 2020-06-16 | 中铁二院工程集团有限责任公司 | Integrated railway cable trough structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827011A (en) * | 2020-08-06 | 2020-10-27 | 中国铁路设计集团有限公司 | Novel railway shoulder structure and construction method |
| CN115142307A (en) * | 2022-08-29 | 2022-10-04 | 中铁上海工程局集团第三工程有限公司 | Equipment and method for cross-rail installation of railway auxiliary facilities |
| CN115142307B (en) * | 2022-08-29 | 2022-12-02 | 中铁上海工程局集团第三工程有限公司 | Equipment and method for cross-rail installation of railway auxiliary facilities |
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