CN111455737A - Wading railway roadbed structure and construction method thereof - Google Patents
Wading railway roadbed structure and construction method thereof Download PDFInfo
- Publication number
- CN111455737A CN111455737A CN202010346031.8A CN202010346031A CN111455737A CN 111455737 A CN111455737 A CN 111455737A CN 202010346031 A CN202010346031 A CN 202010346031A CN 111455737 A CN111455737 A CN 111455737A
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- wading
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- water
- railway roadbed
- roadbed
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 238000009991 scouring Methods 0.000 claims description 15
- 239000004576 sand Substances 0.000 claims description 14
- 239000002689 soil Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 claims 1
- 239000002352 surface water Substances 0.000 abstract description 12
- 230000001932 seasonal effect Effects 0.000 abstract description 6
- 230000009545 invasion Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 12
- 239000002002 slurry Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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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
- E01B2/006—Deep foundation of tracks
-
- 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)
- Railway Tracks (AREA)
Abstract
The invention discloses a wading railway roadbed structure and a construction method thereof. The retaining wall can block flood invasion ballast, erodees the railway ballast, influences the orbital stability of railway, and horizontal drain pipe provides a transverse channel for the surface gathered water, can prevent that surface water from erodeing the railway roadbed and influencing the stability of railway roadbed, has alleviateed the fortune dimension pressure of the drainage system of railway roadbed, has ensured the safety and stability of railway roadbed or seasonal flood roadbed.
Description
Technical Field
The invention relates to the field of railway engineering, in particular to a wading railway roadbed structure and a construction method thereof.
Background
At present, the design water level of domestic railways is generally required to be higher than the fortification water level by more than 1m in the design process, so that wading railways rarely appear.
However, in early domestic railways, due to low defense standards and many years of artificial activities, wading railways appear. A plurality of railways are built in Africa in China, the terrain where the engineering is located is flat, the soil quality is loose, the instantaneous rainfall is large, the water and soil loss is serious, and a drainage system is easy to deposit and block; in addition, the consciousness of protecting railways is different in various countries, and newly repaired water resources in the vicinity of railways are not coordinated with railways for many times. Although the influence of flood level has been considered at the beginning of railway design, peripheral human activities aggravate, and water conservancy facilities's new repair leads to partial circuit to have the risk that becomes seasonal wading road bed, and the earth's surface flood can invade the railway roadbed, erodees the railway ballast, influences the stability of road bed body to under the condition that faces to cut the serious siltation of escape canal, the road bed main part can receive the flood influence, thereby aggravate drainage system's fortune dimension pressure.
Disclosure of Invention
The invention aims to: aiming at the problem that partial routes in the prior art have risks of becoming seasonal wading roadbeds, the wading railway roadbed structure and the construction method thereof are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a wading railway roadbed structure comprises a water retaining wall and a transverse drain pipe;
the number of the water retaining walls is two, and the two water retaining walls are respectively arranged on two sides of the railway ballast;
the transverse drainage pipes are buried in the filling roadbed, the number of the transverse drainage pipes is at least two, the transverse drainage pipes are arranged at intervals along the line direction, and two ends of each transverse drainage pipe penetrate through two sides of the filling roadbed respectively.
Through above-mentioned structure, the waterwall can block that the flood invades the railway roadbed, erodees the railway ballast, influences the orbital stability of railway, and horizontal drain pipe provides a transverse channel for the surface gathered water, arranges the surface water of railway roadbed one side to the opposite side, can prevent that the surface water from erodeing the railway roadbed, influences the stability of railway roadbed, has alleviateed the drainage system's of railway roadbed fortune dimension pressure, has ensured the safety and stability of wading railway roadbed or seasonal flood roadbed.
As a preferable scheme of the invention, the wading railway roadbed structure further comprises an intercepting device, the intercepting device is arranged in the ground outside the railway roadbed and comprises a diversion dike and an intercepting ditch, the top of the diversion dike extends out of the ground, one side of the intercepting ditch is hermetically connected with the side face of the bottom of the diversion dike, and the bottom of the intercepting ditch is lower than the ground or is flush with the ground. Through above-mentioned structure, lead and cut the device and be wading the peripheral drainage system of preventing of railway roadbed, can intercept and discharge the flood that flows to railway roadbed structure, the diversion dyke collects domatic flood and guides to relief low-lying department, when silt, can also block the siltation to form bigger diversion dyke and dam, prevent that railway drainage system siltation from blockking up, the intercepting ditch is used for preventing that the flood from undercutting diversion dyke basis.
As a preferred scheme of the invention, when the wading railway roadbed structure is arranged on a slope, one end of the transverse drain pipe close to the water-facing side of the slope is higher than the other end of the transverse drain pipe, the diversion dike comprises a water blocking side, the water blocking side is close to the water-facing side of the slope, and one side of the intercepting ditch is hermetically connected with the water blocking side. Through above-mentioned structure, when ascending in slope, the water conservancy diversion dyke can block to collect the flood that flows to wading the railway on the slope to guide flood to relief low-lying department and discharge, after the water conservancy diversion dyke was crossed too big to the flood volume, can get into the one end that horizontal drain pipe is close to slope one side of meeting water, and flow out from the other end of horizontal drain pipe through self gravity, prevent that the flood from scouring away the railway roadbed, reach the purpose of drainage.
As a preferred scheme of the invention, the water retaining wall is internally provided with water drainage holes at intervals along the vertical direction, and one end of each water drainage hole close to the railway ballast is higher than the other end of each water drainage hole. Through above-mentioned structure, the ponding on railway ballast surface can be discharged to the outlet.
According to the preferable scheme, the water retaining wall is internally provided with the reinforcing assembly, the reinforcing assembly comprises a grouting anchor rod, one end of the reinforcing assembly is fixed in the water retaining wall, and the other end of the reinforcing assembly is fixed in the filling roadbed. Through the structure, when the height of the water retaining wall is higher, the stability of the water retaining wall under extreme conditions is ensured.
As a preferred scheme of the invention, the wading railway roadbed structure further comprises a ballast pressing block, and the ballast pressing block is arranged on ballast feet on the inner side of the water retaining wall. Through above-mentioned structure, prevent that the railway ballast is washed away by surface water under extreme condition.
As a preferred aspect of the present invention, the wading railway roadbed structure further comprises two middle coarse sand drainage layers and two slope surface masonry seals, wherein the two middle coarse sand drainage layers are respectively arranged in the side slopes on two sides of the filling roadbed, and the slope surface masonry seals are positioned on the side slopes on the outer sides of the middle coarse sand drainage layers. Through above-mentioned structure, well coarse sand drainage blanket is used for the interception and discharges the surface water on the railway roadbed side slope, and domatic masonry seals and is used for preventing that the railway roadbed side slope receives the erodeing of flood and undercuts, ensures the lateral stability of railway roadbed.
As the preferable scheme of the invention, the wading railway roadbed structure further comprises an anti-scouring foundation which is buried in the ground on two sides of the filling roadbed. Through above-mentioned structure, prevent that the railway roadbed basis from receiving the erodeing of flood and undercutting, ensure the lateral stability of railway roadbed.
A construction method of a wading railway roadbed structure comprises the following steps:
excavating a foundation pit of the intercepting ditch and the diversion dike;
pouring or building the intercepting drain and the diversion dike;
constructing a fill roadbed;
installing a transverse drain pipe;
excavating an anti-scouring foundation pit, and then pouring or building an anti-scouring foundation;
laying a medium coarse sand drainage layer, and then performing slope masonry sealing;
constructing a reinforcing component;
pouring or building a water retaining wall;
and constructing the ballast pressing block.
The construction process is used for effectively realizing the function of the wading railway roadbed structure, is convenient to operate and improves the efficiency.
As a preferable scheme of the invention, the surface layer floating soil and planting soil are removed in the range of the roadbed before the foundation pit of the intercepting ditch and the diversion dike is excavated.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
the waterwall can block flood invasion ballast bed, erode ballast, influence the orbital stability of railway, and horizontal drain pipe provides a transverse channel for surface gathered water, arranges the surface water of railway roadbed one side toward the opposite side, can prevent that the surface water from erodeing the railway roadbed, influences the stability of railway roadbed, has alleviateed the drainage system's of railway roadbed fortune dimension pressure, has ensured the safety and stability of wading railway roadbed or seasonal flood roadbed.
The construction process is used for effectively realizing the function of the wading railway roadbed structure, is convenient to operate and improves the efficiency.
Drawings
Fig. 1 is a schematic cross-sectional view of a wading railway roadbed structure according to the invention.
Fig. 2 is a partially enlarged view of the area a in fig. 1.
Fig. 3 is a schematic structural view of the cutting guide device according to the present invention.
Icon: 1-filling roadbed; 2-water retaining wall; 3-a water drainage hole; 4-a reinforcement component; 5, pressing the ballast blocks; 6-masonry sealing of the slope; 7-anti-scouring foundation; 8-diversion dike; 81-water retaining side; 9-intercepting the ditch; 10-medium coarse sand drainage layer; 11-transverse drain pipe.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples
As shown in fig. 1-3, the present embodiment provides a wading railway roadbed structure, which includes a guiding and cutting device, a retaining wall 2, a transverse drain pipe 11, ballast blocks 5, a filling roadbed 1, a reinforcement assembly 4, a slope masonry seal 6, an anti-erosion foundation 7 and a medium-coarse sand drain layer 10;
the filling roadbed 1 is positioned on the ground, and the filling roadbed 1 is filled with the filler with good water stability.
The guide and cut device is arranged on the periphery of the railway subgrade and embedded in the ground towards the water-facing side of the ground, the guide and cut device comprises a diversion dike 8 and a cut trench 9, the top of the diversion dike 8 extends out of the ground, the diversion dike 8 comprises a water retaining side 81, concretely, the diversion dike 8 is generally 0.5-1m higher than the ground, the embedding depth of the diversion dike 8 is 0.5m, the cross section of the diversion dike 8 is rectangular, rectangular trapezoid or trapezoid, and the diversion dike 8 is built by concrete cast-in-place or slurry sliced stone.
One side of the intercepting ditch 9 is hermetically connected with the bottom of the water retaining side 81 of the diversion dike 8, specifically, the width of the bottom of the intercepting ditch 9 is 0.5-1m, the depth of the intercepting ditch 9 is not more than 0.5m, the cross section of the intercepting ditch 9 is rectangular, rectangular trapezoid or trapezoid, and the intercepting ditch 9 is built by concrete cast-in-place or slurry sliced stone; the diversion dikes 8 and the intercepting ditches 9 form a peripheral waterproof and drainage system of the wading railway roadbed.
The number of the water retaining walls 2 is two, the two water retaining walls 2 are respectively arranged at the positions of ballast feet on two sides of a wading railway roadbed, the water outlet holes 3 are formed in the water retaining walls 2 at intervals along the vertical direction, the water outlet holes 3 have slopes, the slopes incline towards the outer side of a railway line, specifically, the height of each water retaining wall 2 is generally 0.4-1.2m, the thickness of the top of each water retaining wall 2 is generally 0.4-0.6m, the water retaining walls 2 are built by concrete cast-in-place or slurry sliced stone, and the distance between every two adjacent water outlet holes 3 is 1 m.
The reinforcing component 4 is arranged along the vertical direction, one end of the reinforcing component 4 is fixed in the water retaining wall 2, the other end of the reinforcing component 4 is fixed in the filling roadbed 1, and specifically, the reinforcing component 4 is a grouting anchor rod.
The number of the ballast pressing blocks 5 is two, and the two ballast pressing blocks 5 are respectively arranged on ballast feet on the inner side of the water retaining wall 2.
The horizontal drainage pipes 11 are horizontally arranged in the filling roadbed 1, the number of the horizontal drainage pipes 11 is at least two, the at least two horizontal drainage pipes 11 are arranged at intervals along the line direction, two ends of each horizontal drainage pipe 11 respectively penetrate through two sides of the filling roadbed 1, each horizontal drainage pipe 11 has a slope, one end, close to the water-facing side, of each horizontal drainage pipe 11 is higher than the other end of each horizontal drainage pipe 11, specifically, the slope of each horizontal drainage pipe 11 is not less than 2 degrees, each horizontal drainage pipe 11 can be a concrete pipe or an HPDE pipe, the diameter of each horizontal drainage pipe 11 is 30-50cm, and the distance between every two adjacent horizontal drainage pipes 11 is 5-10 m.
The number of the medium coarse sand drainage layers 10 is two, the medium coarse sand drainage layers are respectively paved on the side slopes on the two sides of the railway roadbed, slope surface masonry seals 6 are adopted outside the medium coarse sand drainage layers 10, specifically, the thickness of the medium coarse sand drainage layers 10 is 0.1-0.2m, and the slope surface masonry seals 6 can be made of slurry sliced stones, concrete precast slabs, cast-in-place concrete or gabions.
An anti-scouring foundation 7 is buried in the toe of the two sides of the filling roadbed 1, and specifically, the anti-scouring foundation 7 can be made of slurry sliced stones, concrete precast slabs, cast-in-place concrete or gabions.
The embodiment also provides a construction process of the wading railway roadbed structure, which comprises the following steps:
excavating a foundation pit of the intercepting ditch 9 and the diversion dike 8; specifically, before excavating foundation pits of the intercepting ditches 9 and the diversion dikes 8, removing surface layer floating soil or planting soil in the range of the roadbed;
pouring or building the intercepting drain 9 and the diversion dike 8; specifically, the intercepting drain 9 and the diversion dike 8 are cast or built on site;
constructing a fill roadbed 1; specifically, constructing a fill roadbed 1 to a designed height of a road shoulder;
installing a transverse drain pipe 11; specifically, the roadbed surface is grooved, and a transverse drain pipe 11 is installed;
excavating a foundation pit of the anti-scouring foundation 7, and then pouring or building the anti-scouring foundation 7; specifically, the anti-scouring foundation 7 is cast or built in situ;
laying a medium coarse sand drainage layer 10, and then performing slope masonry sealing 6;
constructing a reinforcing component 4; specifically, a grouting anchor rod is constructed on a road shoulder;
pouring or building the water retaining wall 2; specifically, the water retaining wall 2 is cast or built in situ;
constructing a ballast pressing block 5; specifically, after railway ballasts are paved and sleepers are installed, ballast pressing blocks 5 are placed at ballast foot positions on the inner side of the water retaining wall 2.
The wading railway roadbed structure and the construction method thereof provided by the embodiment have the beneficial effects that:
the guide and cut device is a peripheral water-proof and drainage system of the wading railway roadbed, can intercept and discharge flood flowing to the railway roadbed structure, and can block silt to prevent the railway drainage system from silting and blocking, the water retaining wall 2 can prevent the flood from invading a track bed to wash away ballast and influence the stability of a railway track, the transverse drainage pipe 11 provides a transverse channel for surface water, the surface water on one side of the railway roadbed is discharged to the other side, the surface water can be prevented from washing away the railway roadbed, the stability of the railway roadbed is influenced, the operation and maintenance pressure of the drainage system of the railway roadbed is reduced, and the safety and stability of the wading railway roadbed or the seasonal flood roadbed are ensured;
the diversion dike 8 collects the slope flood and guides the slope flood to a low-lying part of the terrain, when sludge exists, the sludge can be blocked, so that a larger diversion dike is formed, and the intercepting ditch 9 is used for preventing the flood from eroding the foundation of the diversion dike 8;
the water drainage holes 3 can drain accumulated water on the surface of railway ballast;
when the height of the water retaining wall 2 is higher, the reinforcing component 4 ensures the stability of the water retaining wall 2 under extreme conditions;
the ballast pressing block 5 can prevent the ballast from being washed by surface water under extreme conditions;
the medium-coarse sand drainage layer 10 is used for intercepting and discharging surface water on the side slope of the railway roadbed, and the slope surface masonry seal 6 is used for preventing the side slope of the railway roadbed from being eroded by scouring of flood so as to ensure the lateral stability of the railway roadbed;
the anti-scouring foundation 7 can prevent the railway roadbed foundation from being scoured and eroded by flood, and ensure the transverse stability of the railway roadbed;
the filling subgrade 1 adopts filling filler with good water stability, so that the vertical stability of the railway subgrade under the condition of long-term water soaking can be ensured;
when the wading railway roadbed structure is arranged on a slope, the diversion dike 8 can block flood which is collected on the slope and flows to the wading railway and guide the flood to a low-lying part of the terrain for discharge, and after the flood flows over the diversion dike 8, the flood can enter one end of the transverse drain pipe 11, which is close to the water-facing side of the slope, and flow out from the other end of the transverse drain pipe 11 through self gravity, so that the flood is prevented from scouring the railway roadbed, and the purpose of discharging water is achieved;
the construction process is used for effectively realizing the function of the wading railway roadbed structure, is convenient to operate and improves the efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A wading railway roadbed structure is characterized by comprising a water retaining wall (2) and a transverse drain pipe (11);
the number of the water retaining walls (2) is two, and the two water retaining walls (2) are respectively arranged on two sides of the railway ballast;
the transverse drainage pipes (11) are buried in the filling roadbed (1) underground, the number of the transverse drainage pipes (11) is at least two, the transverse drainage pipes (11) are arranged at intervals along the line direction, and two ends of each transverse drainage pipe (11) penetrate through two sides of the filling roadbed (1) respectively.
2. A wading railway roadbed structure according to claim 1, characterized by further comprising an intercepting device, wherein the intercepting device is arranged in the ground outside the railway roadbed, the intercepting device comprises a diversion dike (8) and a cut-off ditch (9), the top of the diversion dike (8) extends out of the ground, one side of the cut-off ditch (9) is connected with the bottom side of the diversion dike (8) in a sealing way, and the bottom of the cut-off ditch (9) is lower than the ground or is flush with the ground.
3. A wading railway roadbed structure according to claim 2, wherein when the wading railway roadbed structure is arranged on a slope, one end of the transverse drain pipe (11) close to the water-facing side of the slope is higher than the other end of the transverse drain pipe (11), the diversion dike (8) comprises a water-retaining side (81), the water-retaining side (81) is close to the water-facing side of the slope, and one side of the intercepting ditch (9) is connected with the water-retaining side (81) in a sealing manner.
4. A wading railway roadbed structure according to claim 1, wherein the water retaining wall (2) is internally provided with drain holes (3) at intervals along the vertical direction, and one end of each drain hole (3) close to the railway ballast is higher than the other end.
5. A wading railway roadbed structure according to claim 1, wherein a reinforcing component (4) is arranged in the retaining wall (2), the reinforcing component (4) comprises a grouting anchor rod, one end of the reinforcing component (4) is fixed in the retaining wall (2), and the other end of the reinforcing component (4) is fixed in the fill roadbed (1).
6. The wading railway roadbed structure according to claim 1, characterized by further comprising ballast pressing blocks (5), wherein the ballast pressing blocks (5) are arranged on ballast feet on the inner side of the water retaining wall (2).
7. A wading railway substructure according to claim 1, characterized by further comprising two medium-grit drainage layers (10) and two slope masonry closures (6), the two medium-grit drainage layers (10) being arranged in the slopes on both sides of the fill subgrade (1), respectively, the slope masonry closures (6) being located on the slopes outside the medium-grit drainage layers (10).
8. A wading railway roadbed structure according to claim 1, characterized in that the structure further comprises an anti-scour foundation (7), and the anti-scour foundation (7) is buried in the ground on both sides of the fill roadbed (1).
9. A construction method of a wading railway roadbed structure is characterized by comprising the following steps:
excavating a foundation pit of the intercepting ditch (9) and the diversion dike (8);
pouring or building the intercepting ditch (9) and the diversion dike (8);
constructing a fill roadbed (1);
installing a transverse drain pipe (11);
excavating a foundation pit of the anti-scouring foundation (7), and then pouring or building the anti-scouring foundation (7);
laying a medium coarse sand drainage layer (10), and then performing slope masonry sealing (6);
constructing a reinforcement component (4);
pouring or building the water retaining wall (2);
and constructing a ballast pressing block (5).
10. The assembly type retaining wall construction process of the artificial excavation rectangular section anchoring pile according to the claim 9, characterized in that, before excavating the foundation pit of the intercepting ditch (9) and the diversion dike (8), the superficial floating soil and planting soil are removed in the roadbed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010346031.8A CN111455737A (en) | 2020-04-27 | 2020-04-27 | Wading railway roadbed structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010346031.8A CN111455737A (en) | 2020-04-27 | 2020-04-27 | Wading railway roadbed structure and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684728A (en) * | 2021-07-27 | 2021-11-23 | 台州大华铁路材料有限公司 | Polyurethane-ballast bed damping system |
| CN114934407A (en) * | 2022-05-11 | 2022-08-23 | 东方雨虹智能装备有限责任公司 | Construction method for waterproof engineering of high-speed rail |
| CN115262291A (en) * | 2022-08-09 | 2022-11-01 | 中铁第六勘察设计院集团有限公司 | Structure for embedding railway ballast retaining wall into concrete pavement and construction method |
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