CN101245574A - Method for building over loading railway road-bed on salting ground - Google Patents
Method for building over loading railway road-bed on salting ground Download PDFInfo
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- CN101245574A CN101245574A CNA200710004986XA CN200710004986A CN101245574A CN 101245574 A CN101245574 A CN 101245574A CN A200710004986X A CNA200710004986X A CN A200710004986XA CN 200710004986 A CN200710004986 A CN 200710004986A CN 101245574 A CN101245574 A CN 101245574A
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- roadbed
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- heavy haul
- salinized soil
- haul railway
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009938 salting Methods 0.000 title description 2
- 239000004576 sand Substances 0.000 claims abstract description 38
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 12
- 239000004575 stone Substances 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims description 52
- 238000004078 waterproofing Methods 0.000 claims description 30
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 3
- 239000011780 sodium chloride Substances 0.000 abstract 3
- 229920002994 synthetic fiber Polymers 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009937 brining Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000002535 lyotropic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The invention relates to a method for constructing the roadbeds of heavy haul railways in saline ground areas, comprising the following steps: packaged sand drain method is adopted to reinforce and tightly compact the saline ground where a foundation is constructed; a first sand bedding is paved, and a first waterproof layer made by two cloth-a film earthwork synthetic materials is then paved on the first sand bedding; earth is taken around the foundation, and the roadbed body is constructed by the taken earth; revetments are arranged at both sides of the roadbed body, and mortar flag stones with drainage ditches are arranged on the revetments; a second sand bedding is paved on the upper surface of the roadbed body, and a second waterproof layer made by two cloth-a film earthwork synthetic materials is then paved on the second sand bedding; stop blocks with drain holes for roadbeds are respectively constructed at both ends of the tops of the roadbed body; a third sand bedding is paved on the second waterproof layer. The method for constructing the roadbeds of heavy haul railways in saline ground areas breaks through the traditional construction technology and provides guarantee for the improvement of the operation.
Description
Technical field
The present invention relates to a kind of method of building the heavy haul railway roadbed in the salinized soil area.
Background technology
As everyone knows, the subregion of east China coastal region is a salinized soil geology, because of salinized soil has very strong corrosivity, causes easily that ground is soft, the road surface frost boiling, and is very big to engineering foundation harmfulness.Therefore, constructing roadbed in the salinized soil area, this roadbed is understood the characteristic of salinized soil itself and is damaged easily.
In fact, three phase compositions of salinized soil are different with general soil, contain salting liquid in the liquid phase, contain crystal salt in the solid phase, especially easily molten crystal salt.Changing mutually most of physical index of soil of they is all influential, for example, after salt in the salinized soil is met water-soluble separating, the physical property and the mechanical property of soil all can change, its intensity can change, its intensity index obviously reduces, so brining ground foundation can not be with general foundation soil the same original physical property and the mechanical property index of considering under the natural endowment, after the brining ground foundation immersion, ground is molten to fall into because of the salt dissolving produces, and the size of the molten sunken amount of ground depends primarily on the character of lyotropic salt, content and substep form, the classification of salinized soil, prototype structure state and soil thickness etc.
In addition, salinized soil is very strong to the corrosivity of engineering material, and this also becomes a major reason of building the roadbed difficulty in the salinized soil area.
As can be seen, build general subgrade in the salinized soil area comparatively difficult, if it is then difficult more to build the heavy haul railway roadbed on salinized soil.In the practice of construction process, after building the heavy haul railway roadbed on the salinized soil, because of heavy haul railway often bears bigger pressure and impact, soft spots of road bed, molten problem such as collapse often appear.Be to improve the intensity of heavy haul railway roadbed, part unit in charge of construction digs out salinized soil and transports, and fell and transport a large amount of soil from the other places, sandstone build, this has increased considerably construction cost undoubtedly, has prolonged the duration.
For this reason, for many years, build the construction demand of sturdy and durable heavy haul railway roadbed at lower cost in the salinized soil area and fail to be met always.
Therefore, be necessary to design a kind of new method of building the heavy haul railway roadbed in the salinized soil area, to address the above problem.
Summary of the invention
The object of the present invention is to provide a kind of method of building solid durable and lower-cost heavy haul railway roadbed in the salinized soil area.
To achieve these goals, method of building the heavy haul railway roadbed in the salinized soil area of the present invention adopts following steps to finish:
First step is reinforced in the mode of sand wick the salt marsh soil of desiring to build ground, and the ground compacting is tight;
Second step, first sand cushion is laid on the whole surface of the ground after reinforcing, lays first waterproofing course then on this sand cushion, and described first waterproofing course is two cloth, one film geosynthetics;
Third step, from fetching earth near the ground and with the constructing roadbed body of fetch earth, the element body compacting of satisfying the need is tight, bank protection is established in its both sides, and repaiies mortar flag stone to cover described roadbed body two sides fully on described bank protection, offers the gutter on this mortar flag stone;
The 4th step is laid second sand cushion at roadbed body upper surface, and lays second waterproofing course on this second sand cushion, and described second waterproofing course is two cloth, one film geosynthetics;
The 5th step, at the constructing roadbed block of place, roadbed bodies top two ends difference, this block is provided with drain hole, and lays sand cushion on described second waterproofing course.
According to a further aspect in the invention, described second step further is included in heap shop, outer end, the both sides dry-laid rubble of first waterproofing course, so that this first waterproofing course is pressed solidly;
According to another aspect of the invention, the described curb block in the 4th step is prefabricated cement board structure.
According to other aspects of the invention, described third step further is included in described bank protection two bottom sides and digs respectively and establish the gutter; The angle of described bank protection is 1: 1.3 to 1: 1.8, is preferably 1: 1.5; And the angle difference of left and right sides bank protection; One side bank protection angle is 1: 1.75, and opposite side bank protection angle is 1: 1.5.
Described sand cushion is 0.4 to 0.6m thick medium coarse sand bed course, and it is thick to be preferably 0.5m.
The method of building the heavy haul railway roadbed in the salinized soil area of the application of the invention can be built solid durable heavy haul railway roadbed with lower cost, thereby the workmanship of roadbed is provided in the salinized soil area, reduce engineering cost, shortens construction period.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail, wherein:
The schematic cross-section of the heavy haul railway roadbed that Fig. 1 builds for method of building the heavy haul railway roadbed in the salinized soil area according to the present invention.
The specific embodiment
See also Fig. 1, method of building heavy haul railway roadbed 1 in the salinized soil area of the present invention may further comprise the steps:
The first, the weak soil of ground 11 is reinforced:
The salinized soil area mostly is weak soil matter, because of the intensity of weak soil is low, and the compressibilty height, void ratio is big, and its base stabilization coefficient and settlement after construction value can not satisfy construction requirement, so need take the consolidation process measure to it.
Concrete reinforcement measure promptly penetrates sandbag to apply the sand wick (not shown) in conduit, make it insert ground 11 times with conduit, subsequently conduit is pulled out, thereby forms sand wick.Those skilled in the art will appreciate that diameter, the arrangement of described sand wick, the quantity of sand drain etc. need do to select targetedly according to different topography and geomorphologies and geological conditions.For example, the area of constructing is long-pending salinized soil area, Plain, strand, and the top layer of geology is the clay of 2-4m, when lower floor is the bury of 8-12m, and the diameter of sand drain can be 7cm, is arranged in squares, spacing 1.5 * 1.5m, and the degree of depth of sand drain is 8-12m.
In the process that ground is built, ground 11 necessary compactings are tight, and its surface also must be smooth, thereby conveniently lay waterproofing courses in follow-up phase on ground 11 surfaces.
The second, lay first waterproofing course 12 on the top layer of ground 11:
After finishing first step, at first on the surface of ground 11, lay the first thick sand cushion 10 (being advisable) of 0.4-0.6m with medium coarse sand;
Lay first waterproofing course 12 then on this first sand cushion 10, this first waterproofing course 12 adopts two cloth, one film to make.This two cloth, one film is a kind of geosynthetics that two-layer geotextiles and the waterproof film lamination between the two form, and it has the good anti-characteristic of drawing, and can increase the stability of roadbed body 13.The size and the arrangement that those skilled in the art will appreciate that described first waterproofing course 12 can be determined according to concrete execution conditions;
At last, lay dry-laid rubble 14 so that it is pressed solidly, so that described first waterproofing course 12 can stably be fixed on the surface of ground 11 at the two ends of first waterproofing course 12.
Wherein, requirements such as the chiltern of described first sand cushion 10 and thickness are advisable can effectively protect first waterproofing course 12; in use; because the buffer protection function of first sand cushion 10; make the waterproofing course 12 of winning directly not to be subjected to foreign impacts; thereby ensure the integrality of himself, and then ensure that it can not lose water resistance because of localized seepage.
Three, the build of roadbed body 13:
Next, on described first waterproofing course 12, pile the based filler 130 of paving the way, with constructing roadbed body 13.
Usually, roadbed filling all fetches earth in its vicinity.But, mostly be the salt marsh soil property near it, because after water-soluble the separating of the chance of the salt in the salinized soil, the physics and the mechanical property index of soil all can change, its intensity can change, its intensity index obviously reduces, so be difficult to usually as roadbed filling.As go to accent soil far away, and not only cause significantly increasing of construction costs, also will prolong construction period.
According to the present invention, its roadbed filling 130 still can adopt salinized soil, and the element body of building the road 13 can guarantee firmly durable.
At first, near the constructing roadbed body 13 that fetches earth the ground that roadbed filling 130 is tight according to the construction requirement compacting, bank protection is built in roadbed filling 130 both sides, and the gradient of this bank protection is 1: 1.3 to 1: 1.8, is preferably 1: 1.5.；
Then, described bank protection both sides are built mortar flag stone 132 respectively, to cover described bank protection fully.The effect of this mortar flag stone 132 is the described roadbed fillings 130 of sealing, because the characteristic of mortar flag stone 132 itself, it still can effectively protect roadbed filling 130 under ectocines such as rain drop erosion.
Preferably, on described mortar flag stone 132, build the gutter.
Four, lay second waterproofing course 18 at the top surface of roadbed body 13:
The second thick sand cushion 15 of top surface upper berth one deck 0.4-0.6m at the roadbed body 13 of compacting, this second sand cushion 15 should be smooth, so that lay second waterproofing course 18 thereon, similarly, second waterproofing course 18 equally also adopts two cloth, one film, and it covers the top surface of whole roadbed body 13.
The structure of described two cloth, one film and the effect and the aforementioned related content of second sand cushion 15 are basic identical, do not give unnecessary details so do not do at this.
Five, the sealing of roadbed top layer is handled:
Next, curb block 16 is built at the place respectively at two ends, roadbed body 13 top, and the part of this curb block 16 is located at described mortar flag stone 132 tops, and another part is positioned at roadbed filling 130 tops.Described curb block 16 is preferably prefabricated cement board structure, and offers drain hole on it, and described drain hole communicates with gutter on the mortar flag stone 132, in order to draining;
At last, on described second waterproofing course 18, lay sand cushion.
In use, the mortar flag stone 132 of described first waterproofing course 12, second waterproofing course 18 and both sides with roadbed filling 130 bags within it, make ectocines such as roadbed filling is avoided drenching with rain, underground capillary water rising, thereby effectively control the water content of its filler, and then guarantee its intensity, to bear the impact of heavy haul railway delivery process.
Technological break-through of building the heavy haul railway roadbed in the salinized soil area of the present invention traditional construction technology, good engineering quality, the duration is short, cost is low, and guarantee is provided for serviceable condition is good.
Claims (10)
1. method of building the heavy haul railway roadbed in the salinized soil area is characterized in that this method may further comprise the steps:
First step is reinforced in the mode of sand wick the salt marsh soil of desiring to build ground, and the ground compacting is tight;
Second step, first sand cushion is laid on the whole surface of the ground after reinforcing, lays first waterproofing course then on this first sand cushion, and described first waterproofing course is two cloth, one film geosynthetics;
Third step is from fetching earth near the ground and with the constructing roadbed body of fetch earth, the compacting of roadbed body is tight, and bank protection is established in its both sides, and repaiies mortar flag stone to cover described roadbed body two sides fully on described bank protection, offers the gutter on this mortar flag stone;
The 4th step is laid second sand cushion at roadbed body upper surface, and lays second waterproofing course on this second sand cushion, and described second waterproofing course is two cloth, one film geosynthetics;
The 5th step at the constructing roadbed block of place, roadbed bodies top two ends difference, offers drain hole on this block, and lay sand cushion on described second waterproofing course.
2. method of building the heavy haul railway roadbed in the salinized soil area according to claim 1 is characterized in that, described second step further is included in heap shop, outer end, the both sides dry-laid rubble of first waterproofing course, so that this first waterproofing course is pressed solidly.
3. method of building the heavy haul railway roadbed in the salinized soil area according to claim 1 is characterized in that described curb block is prefabricated cement board structure.
4. according to claim 2 or 3 described methods of building the heavy haul railway roadbed in the salinized soil area, it is characterized in that described third step further is included in described bank protection two bottom sides and digs and establish the gutter.
5. method of building the heavy haul railway roadbed in the salinized soil area according to claim 4 is characterized in that the angle of described bank protection is 1: 1.3 to 1: 1.8.
6. method of building the heavy haul railway roadbed in the salinized soil area according to claim 5 is characterized in that the angle of described bank protection is 1: 1.5.
7. method of building the heavy haul railway roadbed in the salinized soil area according to claim 5 is characterized in that the angle difference of described left and right sides bank protection.
8. method of building the heavy haul railway roadbed in the salinized soil area according to claim 6 is characterized in that a side bank protection angle is 1: 1.75, and opposite side bank protection angle is 1: 1.5.
9. method of building the heavy haul railway roadbed in the salinized soil area according to claim 8 is characterized in that described sand cushion is 0.4 to 0.6m thick medium coarse sand bed course.
10. method of building the heavy haul railway roadbed in the salinized soil area according to claim 9 is characterized in that the thickness of described sand cushion is 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710004986XA CN101245574A (en) | 2007-02-14 | 2007-02-14 | Method for building over loading railway road-bed on salting ground |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710004986XA CN101245574A (en) | 2007-02-14 | 2007-02-14 | Method for building over loading railway road-bed on salting ground |
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| CN101245574A true CN101245574A (en) | 2008-08-20 |
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| CNA200710004986XA Pending CN101245574A (en) | 2007-02-14 | 2007-02-14 | Method for building over loading railway road-bed on salting ground |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101792990A (en) * | 2010-03-26 | 2010-08-04 | 铁道第三勘察设计院集团有限公司 | Geosynthetics-packaged vacuum pre-pressed cushion structure |
| CN101851894A (en) * | 2010-07-01 | 2010-10-06 | 中国科学院地质与地球物理研究所 | Protection method for improving salt expansion or dissolution sink of salty soil |
| CN102330398A (en) * | 2011-07-23 | 2012-01-25 | 中铁二院工程集团有限责任公司 | High-speed railway roadbed structure of unsaturated soil foundation in plain region |
| CN103161109A (en) * | 2011-12-13 | 2013-06-19 | 中国二十冶集团有限公司 | Method for subgrade filling of peat soil subgrade by sea sand |
| CN103243625A (en) * | 2013-05-14 | 2013-08-14 | 中铁二十一局集团第四工程有限公司 | Construction method for salty soil district railway roadbed with water content higher than liquid limit |
| CN103774515A (en) * | 2014-02-20 | 2014-05-07 | 中铁第四勘察设计院集团有限公司 | High speed railway embankment structure in salty soil regions |
| CN104047210A (en) * | 2014-06-26 | 2014-09-17 | 李社军 | Railway line roadbed |
| CN104805745A (en) * | 2015-03-03 | 2015-07-29 | 宋金博 | Saline land roadbed laying method with environment protection effect |
| CN106544939A (en) * | 2016-09-27 | 2017-03-29 | 中铁五局集团有限公司 | A kind of steady underlayment of water, base layer construction craft |
| CN106592346A (en) * | 2017-01-22 | 2017-04-26 | 中铁二院工程集团有限责任公司 | Head chute separated type ballastless track cutting bed structure for middle-strong salinized soil areas |
| CN106758559A (en) * | 2017-01-12 | 2017-05-31 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway silt, flour sand embankment structure and construction method |
| CN107165003A (en) * | 2017-05-18 | 2017-09-15 | 浙江大学 | It is a kind of to be used to administer the regulation method that plate-type ballastless track railway bed is risen soil |
| CN107938454A (en) * | 2016-10-12 | 2018-04-20 | 新疆铁道勘察设计院有限公司 | Utilize the filling roadbed method of rock salt |
| CN108301256A (en) * | 2018-02-07 | 2018-07-20 | 中铁二十局集团第五工程有限公司 | Running railway line station drains groove construction method between station track |
| CN108842748A (en) * | 2018-06-25 | 2018-11-20 | 四川省场道工程有限公司 | A kind of processing of road in airport salinized soil and control method |
| CN108842521A (en) * | 2018-05-21 | 2018-11-20 | 西南交通大学 | The contact layer structure and its laying method of non-fragment orbit and surface layer of subgrade bed |
| CN108867720A (en) * | 2018-07-24 | 2018-11-23 | 中铁二院工程集团有限责任公司 | Under a kind of embankment between stake the molten sunken amount of salinized soil measuring method |
| CN109086512A (en) * | 2018-07-24 | 2018-12-25 | 中铁二院工程集团有限责任公司 | A kind of measuring method of the molten sunken amount in salinized soil cutting bedding bottom |
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| CN101792990A (en) * | 2010-03-26 | 2010-08-04 | 铁道第三勘察设计院集团有限公司 | Geosynthetics-packaged vacuum pre-pressed cushion structure |
| CN101851894A (en) * | 2010-07-01 | 2010-10-06 | 中国科学院地质与地球物理研究所 | Protection method for improving salt expansion or dissolution sink of salty soil |
| CN101851894B (en) * | 2010-07-01 | 2012-07-25 | 中国科学院地质与地球物理研究所 | Protection method for improving salt expansion or dissolution sink of salty soil |
| CN102330398A (en) * | 2011-07-23 | 2012-01-25 | 中铁二院工程集团有限责任公司 | High-speed railway roadbed structure of unsaturated soil foundation in plain region |
| CN103161109A (en) * | 2011-12-13 | 2013-06-19 | 中国二十冶集团有限公司 | Method for subgrade filling of peat soil subgrade by sea sand |
| CN103243625A (en) * | 2013-05-14 | 2013-08-14 | 中铁二十一局集团第四工程有限公司 | Construction method for salty soil district railway roadbed with water content higher than liquid limit |
| AT16231U1 (en) * | 2013-11-08 | 2019-04-15 | Jozsef Szabo | Structure arrangement for the stabilization of linear earthworks |
| AT16231U8 (en) * | 2013-11-08 | 2019-06-15 | Jozsef Szabo | Structure arrangement for the stabilization of linear earthworks |
| CN103774515A (en) * | 2014-02-20 | 2014-05-07 | 中铁第四勘察设计院集团有限公司 | High speed railway embankment structure in salty soil regions |
| CN104047210A (en) * | 2014-06-26 | 2014-09-17 | 李社军 | Railway line roadbed |
| CN104805745A (en) * | 2015-03-03 | 2015-07-29 | 宋金博 | Saline land roadbed laying method with environment protection effect |
| CN104805745B (en) * | 2015-03-03 | 2017-02-01 | 宋金博 | Saline land roadbed laying method with environment protection effect |
| CN106544939A (en) * | 2016-09-27 | 2017-03-29 | 中铁五局集团有限公司 | A kind of steady underlayment of water, base layer construction craft |
| CN107938454A (en) * | 2016-10-12 | 2018-04-20 | 新疆铁道勘察设计院有限公司 | Utilize the filling roadbed method of rock salt |
| CN106758559A (en) * | 2017-01-12 | 2017-05-31 | 中铁二院工程集团有限责任公司 | A kind of high-speed railway silt, flour sand embankment structure and construction method |
| CN106592346A (en) * | 2017-01-22 | 2017-04-26 | 中铁二院工程集团有限责任公司 | Head chute separated type ballastless track cutting bed structure for middle-strong salinized soil areas |
| CN107165003A (en) * | 2017-05-18 | 2017-09-15 | 浙江大学 | It is a kind of to be used to administer the regulation method that plate-type ballastless track railway bed is risen soil |
| CN107165003B (en) * | 2017-05-18 | 2018-03-16 | 浙江大学 | It is a kind of to be used to administer the regulation method that plate-type ballastless track railway bed is risen soil |
| CN108301256A (en) * | 2018-02-07 | 2018-07-20 | 中铁二十局集团第五工程有限公司 | Running railway line station drains groove construction method between station track |
| CN108301256B (en) * | 2018-02-07 | 2019-07-05 | 中铁二十一局集团第五工程有限公司 | Running railway line station drains groove construction method between station track |
| CN108842521A (en) * | 2018-05-21 | 2018-11-20 | 西南交通大学 | The contact layer structure and its laying method of non-fragment orbit and surface layer of subgrade bed |
| CN108842521B (en) * | 2018-05-21 | 2023-08-01 | 西南交通大学 | Contact layer structure of ballastless track and foundation bed surface layer and laying method thereof |
| CN108842748A (en) * | 2018-06-25 | 2018-11-20 | 四川省场道工程有限公司 | A kind of processing of road in airport salinized soil and control method |
| CN108867720B (en) * | 2018-07-24 | 2020-07-07 | 中铁二院工程集团有限责任公司 | Method for measuring and calculating amount of saline soil settlement between piles under embankment |
| CN109086512A (en) * | 2018-07-24 | 2018-12-25 | 中铁二院工程集团有限责任公司 | A kind of measuring method of the molten sunken amount in salinized soil cutting bedding bottom |
| CN108867720A (en) * | 2018-07-24 | 2018-11-23 | 中铁二院工程集团有限责任公司 | Under a kind of embankment between stake the molten sunken amount of salinized soil measuring method |
| CN109086512B (en) * | 2018-07-24 | 2022-07-29 | 中铁二院工程集团有限责任公司 | Method for measuring and calculating bottom settlement of salinized soil road cut foundation bed |
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| CN110158369A (en) * | 2019-05-17 | 2019-08-23 | 中铁二院工程集团有限责任公司 | 300~350km/h of speed per hour Ballast track coarse grain salt marsh dirt road embankment structure and construction method |
| CN113186768A (en) * | 2021-04-21 | 2021-07-30 | 中铁六局集团太原铁路建设有限公司 | Construction method for improving roadbed backfill quality after existing line demolition of frame structure |
| CN115341427A (en) * | 2022-09-06 | 2022-11-15 | 东南大学 | Highway seepage-proofing drainage structure based on capillary isolation principle and construction method thereof |
| CN115341427B (en) * | 2022-09-06 | 2024-05-28 | 东南大学 | Highway seepage-proofing drainage structure based on capillary isolation principle and construction method thereof |
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