CN202247720U - Draining structure for cutting bed of rapid transit railway - Google Patents
Draining structure for cutting bed of rapid transit railway Download PDFInfo
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- CN202247720U CN202247720U CN2011203384876U CN201120338487U CN202247720U CN 202247720 U CN202247720 U CN 202247720U CN 2011203384876 U CN2011203384876 U CN 2011203384876U CN 201120338487 U CN201120338487 U CN 201120338487U CN 202247720 U CN202247720 U CN 202247720U
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Abstract
The utility model relates to a draining structure for a cutting bed of a rapid transit railway, and the structure is excellent in draining effect, high in roadbed integrity, high in stability, firm and durable. The draining structure comprises a separating draining cushion layer (6), a cutting bed bottom soil-filling layer (2), a bed surface layer (3), cutting draining side ditches (5), draining sewers (4) and checking wells (8), wherein the separating draining cushion layer (6) is arranged on a cutting bottom rock body (1) which is dug and filled again; the cutting bed bottom soil-filling layer (2) is constructed on the separating draining cushion layer (6); the bed surface layer (3) is constructed on the upper part of the cutting bed bottom soil-filling layer (2); the cutting draining side ditches (5) are arranged on two sides of a roadbed; the draining sewers (4) are arranged under the cutting draining side ditches (5) on two sides; and the checking wells (8) are arranged at intervals along a platform of the cutting draining side ditches (5) on two sides.
Description
Technical field
The utility model relates to railway, highway cutting bedding drain structure, particularly high-speed railway cutting bedding discharge structure.
Background technology
High-speed railway has all proposed new requirement to high ride, stability, the durability of circuit; Water is the one of the main reasons of railway bed generation disease, and high-speed railway cutting bedding belongs to the scope that influenced by the train dynamic stress, if cutting bedding impeded drainage; Under the effect repeatedly of high-speed railway dynamic stress; The durability of subgrade bed soil will be had a strong impact on, and the subgrade bed disease possibly occur, to safety, the comfortableness generation significant impact of high-speed railway.Therefore, active demand is a kind of effectively, stability and good endurance and the simple cutting bedding of construction technology discharge structure, and meets environmental protection requirement.
The utility model content
The utility model technical problem to be solved provides a kind of high-speed railway cutting bedding discharge structure, has good drainage effect, and the roadbed globality is strong, good stability, sturdy and durable.
It is following that the utility model solves the technical scheme that its technical problem adopted:
The high-speed railway cutting bedding discharge structure of the utility model is characterized in that it comprises: at a distance from drainage blanket, be arranged at cutting and excavate to change and fill out on the bottom rock-soil body; The cutting bottom layer of subgrade changes fill stratum, fills on drainage blanket; Surface layer of subgrade bed fills in the cutting bottom layer of subgrade and changes fill stratum top; Cutting draining lateral sulcus is arranged at the roadbed both sides; The draining sewer is arranged under the cutting lateral sulcus of both sides; Manhole, the cutting draining lateral sulcus platform separation along both sides.
The beneficial effect of the utility model is, make full use of at a distance from drainage blanket to change the made ground base and carry out levelling to excavating, blocking groundwater with discharge the roadbed top layer and go into the satisfy the need influence of bedding of infiltration; Utilize cutting draining lateral sulcus to get rid of the roadbed surface water fast; Utilize the draining sewer to get rid of roadbed underground water, avoid underground water roadbed to be changed the influence of filling out the bedding soil body; Utilize manhole that the draining sewer is regularly dredged inspection and guarantee that draining is unimpeded.This cutting bedding discharge structure drainage effect is good, and the roadbed globality is strong, good stability, sturdy and durable, and construction technology is simple, can effectively reducing the construction costs, and compliance with environmental protection requirements, have wide popularizing application prospect.
Description of drawings
This manual comprises following four width of cloth accompanying drawings:
Fig. 1 is the cross-sectional drawing of the utility model high-speed railway cutting bedding discharge structure;
Fig. 2 is the separated drainage blanket drawing of the utility model high-speed railway cutting bedding discharge structure;
Fig. 3 is vertical the region between the heart and the diaphragm ditch drawing of the utility model high-speed railway cutting bedding discharge structure;
Fig. 4 is the infiltration the region between the heart and the diaphragm ditch drawing of the utility model high-speed railway cutting bedding discharge structure;
Component shown in the figure, division name and corresponding mark: cutting is excavated to change and is filled out bottom rock-soil body 1; The cutting bottom layer of subgrade changes fill stratum 2; Surface layer of subgrade bed 3; Draining sewer 4, vertical the region between the heart and the diaphragm ditch 41, double-wall corrugated soakaway trench 411 with holes, coarse sands layer 412 is cleaned macadam 413, permeable non-woven geotextile 414, C30 concrete foundation 415, infiltration the region between the heart and the diaphragm ditch 42, plastics the region between the heart and the diaphragm pipe 421, macadam 422; Cutting draining lateral sulcus 5; At a distance from drainage blanket 6, time medium-sand seam 61, composite geo-membrane 62a, compound anti-band drain 62b, last medium-sand seam 63; Manhole 8.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
With reference to Fig. 1, the high-speed railway cutting bedding discharge structure of the utility model, it comprises: at a distance from drainage blanket 6, be arranged at cutting and excavate to change and fill out on the bottom rock-soil body 1; The cutting bottom layer of subgrade changes fill stratum 2, fills on drainage blanket 6; Surface layer of subgrade bed 3 fills in the cutting bottom layer of subgrade and changes fill stratum 2 tops; Cutting draining lateral sulcus 5 is arranged at the roadbed both sides; Draining sewer 4 is arranged at both sides cutting lateral sulcus 5 times; Manhole 8, the cutting draining lateral sulcus 5 platform separation along both sides.Make full use of to excavate and change the made ground base and carry out levelling at a distance from 6 pairs of drainage blankets; Blocking groundwater with discharge the roadbed top layer and go into the satisfy the need influence of bedding of infiltration; Utilize cutting draining lateral sulcus 5 to get rid of the roadbed surface water fast; Utilize draining sewer 4 to get rid of roadbed underground water, avoid underground water that roadbed is changed the influence of filling out the bedding soil body, utilize 8 pairs of draining sewers 3 of manhole regularly to dredge inspection and guarantee that draining is unimpeded.This cutting bedding discharge structure drainage effect is good, and the roadbed globality is strong, good stability, sturdy and durable, and construction technology is simple, can effectively reducing the construction costs, and compliance with environmental protection requirements, have wide popularizing application prospect.
With reference to Fig. 2, when underground water level is lower than the cutting bottom layer of subgrade and changes fill stratum 2 bottom elevations, said at a distance from drainage blanket 6 by medium-sand seam 61 down, go up medium-sand seam 63 and the composite geo-membrane 62a that is layed between the two constitutes.Composite geo-membrane 62a is by the upper and lower layer permeable type geotextiles of nonwoven and middle level water proof geomembrane is compound constitutes, and its concrete technical indicator is following: weight is not less than 800g/m
2Fabric width is not less than 7.0m; Be not less than 25KN/m to tensile strength in length and breadth, the CBR bursting strength is not less than 3.6kN/m, and maximum elongation per unit length is not more than 30%, and tearing resistance is not less than 0.6KN; Resistance to hydrostatic pressure is not less than 0.6MPa; Transmission coefficient is not more than 10
-11/ cm/s; Middle level water proof geomembrane thickness is not less than 0.5mm.
With reference to Fig. 2, change when banketing 2 bottom elevations when underground water level is higher than the cutting bottom layer of subgrade, said at a distance from drainage blanket 6 by medium-sand seam 61 down, go up medium-sand seam 63 and the compound anti-band drain 62b that is layed between the two constitutes.Its concrete technical indicator is following: mass area ratio is not less than 1600g/m
2Thickness is not less than 8.0mm, and fabric width is not less than 2.0m, and width difference is+0.05m; Endwise tensile strength is not less than 18kN/m, and transverse tensile strength is not less than 10kN/m, and the hydraulic conductivity when drainage grade i=0.1, burden pressure 500kPa is not less than 1.2 * 10
-3/ m
2/ s, three-dimensional earthwork core and permeable non-woven geotextile and all be not less than 0.3KN/m with the peel strength of waterproof composite geo-membrane; Said three-dimensional earthwork core thickness is not less than 5.0mm, and the web-roll core endwise tensile strength is not less than 15kN/m; The permeable geotextiles mass area ratio of said nonwoven is not less than 200g/m
2, the normal osmosis coefficient is not less than 0.3cm/s; Said waterproof composite geo-membrane is made up of the two-sided heat seal geotextiles of geomembrane, and its mass area ratio is not less than 400g/m
2, resistance to hydrostatic pressure power is not less than 0.10MPa.
With reference to Fig. 1, saidly by mind-set both sides in the roadbed 4% the transverse drainage gradient is set at a distance from the drainage blanket 6 fundamental rock soil bodys, following medium-sand seam 61, the thickness of going up medium-sand seam 63 are generally 0.05m.Said cutting draining lateral sulcus 5 adopts the steel concrete cast, and the longitudinal drainage gradient should be less than 2 ‰.
With reference to Fig. 3, when being higher than the cutting bottom layer of subgrade, changes when banketing 2 bottom elevations underground water level, and said draining sewer 4 adopts vertical the region between the heart and the diaphragm ditch 41.Vertically the region between the heart and the diaphragm ditch 41 by the with holes double-wall corrugated soakaway trench 411 that is arranged on bottom of trench, fill coarse sands layer 412, fill the clean macadam 413 in ditch and be layed in coarse sands layer 412, clean macadam 413 in both sides, permeable non-woven geotextile 414, C30 concrete foundation 415 constitute.Lateral sulcus 5 platforms whenever are provided with a place at a distance from 20～30m to said manhole 8 along the cutting both sides, adopt the steel concrete cast.
With reference to Fig. 4; When being lower than the cutting bottom layer of subgrade, changes when banketing 2 bottom elevations underground water level; Said draining sewer 4 adopts infiltration the region between the heart and the diaphragm ditch 42, and infiltration the region between the heart and the diaphragm ditch 42 is made up of plastics the region between the heart and the diaphragm pipe that is arranged on bottom of trench 421 and the macadam 422 that fills in ditch, and they should be less than 2 ‰ along the line direction drainage grade.The plastics blind pipe by the sleave hot melt of modified polyphenyl alkene after phase lap knot and the frame construction that forms, the permeable geotextiles of outerwrap one deck, muddy water is filtered into behind the clear water in the entering plastics blind pipe through covering geotextiles outward, emits.Plastics blind pipe hollow size >=60mm, weight >=1000g/m, void content >=82%, its compressive strength index is: flat ratio 5% >=65kPa; Flat ratio 10% >=110kPa; Flat ratio 15% >=160kPa; Flat ratio 20% >=220kPa.
Some principles of the above the utility model high-speed railway cutting bedding discharge structure that just explains through diagrams; Be not be to the utility model be confined to shown in described concrete structure and the scope of application in; So every the modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (10)
1. high-speed railway cutting bedding discharge structure is characterized in that it comprises: at a distance from drainage blanket (6), be arranged at cutting and excavate to change and fill out on the bottom rock-soil body (1); The cutting bottom layer of subgrade changes fill stratum (2), fills on drainage blanket (6); Surface layer of subgrade bed (3) fills in the cutting bottom layer of subgrade and changes fill stratum (2) top; Cutting draining lateral sulcus (5) is arranged at the roadbed both sides; Draining sewer (4) is arranged under the both sides cutting lateral sulcus (5); Manhole (8), cutting draining lateral sulcus (5) the platform separation along both sides.
2. high-speed railway cutting bedding discharge structure as claimed in claim 1 is characterized in that: said separated drainage blanket (6) is by descending medium-sand seam (61), go up medium-sand seam (63) and being layed in composite geo-membrane (62a) formation between the two.
3. high-speed railway cutting bedding discharge structure as claimed in claim 2 is characterized in that: said: said composite geo-membrane (62a) is by the upper and lower layer permeable type geotextiles of nonwoven and middle level water proof geomembrane is compound constitutes, and its weight is not less than 800g/m
2, fabric width is not less than 7.0m, is not less than 25KN/m to tensile strength in length and breadth, and the CBR bursting strength is not less than 3.6kN/m, and maximum elongation per unit length is not more than 30%, and tearing resistance is not less than 0.6KN, and resistance to hydrostatic pressure is not less than 0.6MPa, and transmission coefficient is not more than 10
-11/ cm/s, middle level water proof geomembrane thickness is not less than 0.5mm.
4. high-speed railway cutting bedding discharge structure as claimed in claim 1 is characterized in that: said separated drainage blanket (6) is by descending medium-sand seam (61), go up medium-sand seam (63) and being layed in compound anti-band drain (62b) formation between the two.
5. high-speed railway cutting bedding discharge structure as claimed in claim 4; It is characterized in that: said compound anti-band drain (62b) is by the three-dimensional earthwork core and heat seal on it, the waterproof composite geo-membrane of soffit, the permeable geotextiles of nonwoven is compound constitutes respectively, and its mass area ratio is not less than 1600g/m
2, thickness is not less than 8.0mm, and fabric width is not less than 2.0m, and width difference is+0.05m, and endwise tensile strength is not less than 18kN/m, and transverse tensile strength is not less than 10kN/m, and the hydraulic conductivity when drainage grade i=0.1, burden pressure 500kPa is not less than 1.2 * 10
-3/ m
2/ s, three-dimensional earthwork core and permeable non-woven geotextile and all be not less than 0.3KN/m with the peel strength of waterproof composite geo-membrane.
6. high-speed railway cutting bedding discharge structure as claimed in claim 5 is characterized in that: said three-dimensional earthwork core thickness is not less than 5.0mm, and the web-roll core endwise tensile strength is not less than 15kN/m; The permeable geotextiles mass area ratio of said nonwoven is not less than 200g/m
2, the normal osmosis coefficient is not less than 0.3cm/s; Said waterproof composite geo-membrane is made up of the two-sided heat seal geotextiles of geomembrane, and its mass area ratio is not less than 400g/m
2, resistance to hydrostatic pressure power is not less than 0.10MPa.
7. like any described high-speed railway cutting bedding discharge structure of claim 2 to 6; It is characterized in that: said separated drainage blanket (6) is provided with 4% the transverse drainage gradient by mind-set both sides in the roadbed, and the thickness of following medium-sand seam (61), last medium-sand seam (63) is 0.05m.
8. high-speed railway cutting bedding discharge structure as claimed in claim 1 is characterized in that: said cutting draining lateral sulcus (5) adopts the steel concrete cast, and the longitudinal drainage gradient should be less than 2 ‰.
9. high-speed railway cutting bedding discharge structure as claimed in claim 1; It is characterized in that: said draining sewer (4) adopts vertical the region between the heart and the diaphragm ditch (41), vertically the region between the heart and the diaphragm ditch (41) by the with holes double-wall corrugated soakaway trench (411) that is arranged on bottom of trench, fill coarse sands layer (412), fill the clean macadam (413) in ditch and be layed in coarse sands layer (412), clean macadam (413) in both sides, permeable non-woven geotextile (414), C30 concrete foundation (415) formation; Lateral sulcus (5) platform whenever is provided with a place at a distance from 20～30m to said manhole (8) along the cutting both sides, adopts the steel concrete cast.
10. high-speed railway cutting bedding discharge structure as claimed in claim 1; It is characterized in that: said draining sewer (4) adopts infiltration the region between the heart and the diaphragm ditch (42); Infiltration the region between the heart and the diaphragm ditch (42) is by the plastics the region between the heart and the diaphragm pipe (421) that is arranged on bottom of trench and fill macadam (422) formation in ditch, and they should be less than 2 ‰ along line direction drainage grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203384876U CN202247720U (en) | 2011-09-09 | 2011-09-09 | Draining structure for cutting bed of rapid transit railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203384876U CN202247720U (en) | 2011-09-09 | 2011-09-09 | Draining structure for cutting bed of rapid transit railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247720U true CN202247720U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203384876U Expired - Lifetime CN202247720U (en) | 2011-09-09 | 2011-09-09 | Draining structure for cutting bed of rapid transit railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247720U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672064A (en) * | 2016-01-17 | 2016-06-15 | 中铁二院工程集团有限责任公司 | Construction method for cable trough and protective shoulder of high-speed railway roadbed |
| CN107190658A (en) * | 2017-07-27 | 2017-09-22 | 四川睿铁科技有限责任公司 | A kind of free frame pin-connected panel railway Evacuation platform of steel |
| CN107460863A (en) * | 2017-07-21 | 2017-12-12 | 中铁二院工程集团有限责任公司 | A kind of high-strength compound geotextiles reinforced suitable for Karst Subgrade |
| CN108301485A (en) * | 2018-02-07 | 2018-07-20 | 长沙理工大学 | A kind of sewer and preparation method thereof |
| CN108708308A (en) * | 2018-05-24 | 2018-10-26 | 中铁二院工程集团有限责任公司 | A kind of expensive soil cutting deep layer discharge structure |
| CN108729437A (en) * | 2018-07-16 | 2018-11-02 | 中铁第四勘察设计院集团有限公司 | Composite, water-drain isolating pad, bedding waterproof/drainage structure and side slope are layered waterproof/drainage structure |
| CN112900177A (en) * | 2021-02-02 | 2021-06-04 | 青海省交通投资有限公司 | Composite geomembrane salt-separating water-blocking partition layer structure |
-
2011
- 2011-09-09 CN CN2011203384876U patent/CN202247720U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672064A (en) * | 2016-01-17 | 2016-06-15 | 中铁二院工程集团有限责任公司 | Construction method for cable trough and protective shoulder of high-speed railway roadbed |
| CN107460863A (en) * | 2017-07-21 | 2017-12-12 | 中铁二院工程集团有限责任公司 | A kind of high-strength compound geotextiles reinforced suitable for Karst Subgrade |
| CN107190658A (en) * | 2017-07-27 | 2017-09-22 | 四川睿铁科技有限责任公司 | A kind of free frame pin-connected panel railway Evacuation platform of steel |
| CN108301485A (en) * | 2018-02-07 | 2018-07-20 | 长沙理工大学 | A kind of sewer and preparation method thereof |
| CN108708308A (en) * | 2018-05-24 | 2018-10-26 | 中铁二院工程集团有限责任公司 | A kind of expensive soil cutting deep layer discharge structure |
| CN108729437A (en) * | 2018-07-16 | 2018-11-02 | 中铁第四勘察设计院集团有限公司 | Composite, water-drain isolating pad, bedding waterproof/drainage structure and side slope are layered waterproof/drainage structure |
| CN112900177A (en) * | 2021-02-02 | 2021-06-04 | 青海省交通投资有限公司 | Composite geomembrane salt-separating water-blocking partition layer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
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| CX01 | Expiry of patent term |