CN204753261U - Light -duty road bed of a doublestage shelves structure - Google Patents
Light -duty road bed of a doublestage shelves structure Download PDFInfo
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- CN204753261U CN204753261U CN201520419367.7U CN201520419367U CN204753261U CN 204753261 U CN204753261 U CN 204753261U CN 201520419367 U CN201520419367 U CN 201520419367U CN 204753261 U CN204753261 U CN 204753261U
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Abstract
The utility model discloses a light -duty road bed of a doublestage shelves structure. It includes and is equipped with the slope platform between the two -stage reinforced earth barricade by two -stage reinforced earth barricade, the reinforced earth barricade includes multilayer geotextile grid, wall body and shingle nail, the wall body sets up in one side of multilayer geotextile grid, and the shingle nail passes through the stock to be fixed on the wall body surface, is equipped with the filler between the multilayer geotextile grid, geogrid is equipped with inflection portion, the wall body includes that the successive layer fills a plurality of inclusion enclaves in inflection portion, the shingle nail includes that the concrete -based body and vertically and horizontally staggered set up the internal vertical muscle and perpendicular muscle at concrete -based, stock one end is connected from north to south, and muscle, the other end pass the wall body and stretch into in the filler, the shingle nail top is equipped with cap stone, the bottom is equipped with the strip footing, the strip footing bottom is equipped with the blotter. The utility model discloses it is simple, convenient, quick to be under construction, practices thrift occupation of land, handsome in appearance, and the cost is low, can effectively guarantee the safety of stabilizing of high embankment.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, is specifically related to the light-duty subgrade support mark structure of a kind of twin-stage.
Background technology
Propped up gear or embankment pile plate wall structure for the limited railway height embankment many employings reinforced concrete retaining wall in place, cemented rock, this type of dead load is large, and high to ground requirement for bearing capacity, cost is high in the past; What is more important, reinforced concrete retaining wall quantity of masonry is large, consumes the energy many, does not meet the requirement of environmental protection.Therefore, in recent years, a kind of light supporting structure---reinforced earth retaining wall, is used for railroad embankment retaining structure as one, progressively promotes the use of.At present, the application of single-stage reinforced earth bulkhead is comparatively ripe, but it is only applicable to highly be less than 10m height embankment, and the high embankment being highly greater than 10m is then thrown away to adopting concrete retaining wall or embankment pile plate wall structural shielding, cost is higher.
Summary of the invention
The purpose of this utility model is exactly the deficiency existed to solve above-mentioned background technology, provides a kind of light-duty subgrade support mark structure of twin-stage simple, cost is low of constructing.
The technical solution adopted in the utility model is: the light-duty subgrade support mark structure of a kind of twin-stage, comprise the two-stage reinforced earth bulkhead being arranged through roadbed filling up and down and separating, platform with slope is provided with between described two-stage reinforced earth bulkhead, described reinforced earth bulkhead comprises multilayer geo-grid, body of wall and shingle nail, described body of wall is arranged on the side of multilayer geo-grid, shingle nail is fixed on surface of wall by anchor pole, filler is provided with between multilayer geo-grid, described geo-grid is provided with revers turn part, described body of wall is the multiple inclusion enclaves be successively filled in revers turn part, described shingle nail comprises concrete substrate and is crisscrossly arranged on vertical muscle in concrete substrate and perpendicular muscle, described anchor pole one end connection lengthwise rib, the other end extend in filler through body of wall, described shingle nail top is provided with cap stone, bottom is provided with strip foundation, hardcore bed is provided with bottom described strip foundation.
Further, described inclusion enclave is spread the plastic knitting bagged sand folder gravel mixing grass-seed.
Further, described revers turn part comprises on earthwork grid second of first of coated inclusion enclave and back-pressure, and described second is sewed together by pitman and geo-grid are hole-specifically interspersed.
Further, the length of described revers turn part is not less than 2 meters.
Further, described shingle nail is provided with multiple tapping pipe stretched in body of wall, and described tapping pipe is crisscross arranged up and down, adjacent tapping pipe be spaced apart 0.9-1 rice.
Further, the height of described reinforced earth bulkhead is 6-9 rice.
Further, the ratio of slope of described reinforced earth bulkhead is 1:0.25.
Further, described shingle nail, cap stone and direction, strip foundation ascender line road are all interval with vertical shrinkage joint, described shingle nail, cap stone are communicated with up and down with the shrinkage joint in strip foundation, and the position corresponding with shrinkage joint, the described shingle nail back side is provided with needle-punched geotextiles.
The location that the utility model is greater than 10 meters in embankment raising adopts two-stage step reinforced earth retaining wall structure to carry out a gear protection, construction simply, easily and fast, save take up an area, handsome in appearance, cost is low and have certain flexibility, effectively can ensure the stability and safety of high embankment, can extensively be extended in railway, highway subgrade construction project.The reinforced earth bulkhead of this retaining structure is laid geo-grid and is successively banketed, and geo-grid is formed revers turn part, fills inclusion enclave, and be sewed together in revers turn part end and geo-grid in revers turn part; Synchronously can carry out the laying of shingle nail reinforcing bar while successively banketing, and arrange anchor pole, then carry out cast in situs metope, solve the problem of construction space and closing slope, technology is simple, practical, convenient, economical, and safely, steadily.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A place enlarged drawing in Fig. 1.
Fig. 3 is the schematic diagram that the utility model geo-grid handbag covers inclusion enclave.
Fig. 4 is shrinkage joint schematic diagram on the utility model shingle nail.
In figure: 1-reinforced earth bulkhead; 2-roadbed filling; 3-platform with slope; 4-geo-grid; 4.1-revers turn part; 4.2-first; 4.3-second; 5-body of wall; 5.1-inclusion enclave; 6-shingle nail; 6.1-concrete substrate; 6.2-indulges muscle; 6.3-erects muscle; 7-filler; 8-cap stone; 9-strip foundation; 10-rubble packing course; 11-anchor pole; 12-tapping pipe; 13-pitman, 14-shrinkage joint; 15-needle-punched geotextiles.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form restriction to the utility model.
As Figure 1-4, the location that the utility model is greater than 10 meters in embankment raising adopts two-stage reinforced earth retaining wall structure to carry out a gear protection, comprise the two-stage reinforced earth bulkhead 1 being arranged through roadbed filling 2 up and down and separating, upper and lower two-stage reinforced earth bulkhead 1 structure structure and construction method substantially identical, the height of every grade of reinforced earth bulkhead 1 is 6 ~ 9 meters, the strip foundation of higher level's reinforced earth bulkhead is seated on banketing of subordinate's reinforced earth bulkhead, and the ratio of slope of two-stage reinforced earth gear 1 is 1:0.25.The platform with slope 3 that 2.5 meters wide is established between two-stage reinforced earth bulkhead 1.Reinforced earth bulkhead 1 comprises multilayer geo-grid 4, body of wall 5 and shingle nail 6, and body of wall 5 is arranged on the side of multilayer geo-grid 4, and shingle nail 6 is fixed on body of wall 5 surface by anchor pole 11.
In such scheme, be provided with filler 7 (being generally clay or earth) between multilayer geo-grid 4, the wide 44.0-8.0m of geo-grid, vertical spacing 0.4m, tensile strength is not less than 120kN/m.Geo-grid 4 is provided with revers turn part 4.1, and revers turn part 4.1 comprises on earthwork grid second 4.3 of first 4.2 of coated inclusion enclave 5.1 and back-pressure.The back-pressure length L of revers turn part 4.1 is not less than 2.0m, and two layers, top length L' is not less than 3.0m, as revers turn part length L be 2.6m time, then two layers, top length L' is 3.6m.As shown in Figure 3, after the coated inclusion enclave of revers turn part 4.1, its second 4.3 is sewed together by special plastic pitman 13 and geo-grid 4 are hole-specifically interspersed.
In such scheme, body of wall 5 comprises the multiple inclusion enclaves 5.1 be successively filled in revers turn part, and inclusion enclave 5.1 is for spreading the plastic knitting bagged sand folder gravel mixing grass-seed, and its width is not less than 1.0m, paves below absolute altitude and fill out for the in-built clay of Polywoven Bag rams before wall.
In such scheme, shingle nail 6 adopts the cast in situs of C30 steel concrete, thick 0.2m, and be connected by HPB235 level φ 20mm reinforced anchor bolt 11 between shingle nail 6 with body of wall 5, anchor pole 11 is crisscross arranged every 0.9-1.0m upper and lower, left and right.As shown in Figure 2, shingle nail 6 comprises concrete substrate 6.1 and is crisscrossly arranged on vertical muscle 6.2 in concrete substrate 6.1 and perpendicular muscle 6.3, and anchor pole 11 one end connection lengthwise rib 6.2, the other end extend in filler 7 through body of wall 5.Shingle nail 6 top is provided with cap stone 8, and cap stone 8 adopts the cast in situs of C30 concrete, the high 0.5m of cap stone 8, wide 0.6m.C30 concrete continuous footing 9 is provided with, the wide 0.6m of strip foundation 9, high 0.5m bottom shingle nail 6.Hardcore bed 10 is provided with, the thick 0.5m of hardcore bed 10 bottom strip foundation 9.
Shingle nail 6 is provided with multiple PVC tapping pipe 12 stretched in body of wall 5 more than the front ground of wall, tapping pipe 12 is crisscross arranged up and down, adjacent tapping pipe 12 be spaced apart 0.9-1 rice, long 1.0m, the pipe shaft imbedding inclusion enclave establishes quincunx boring, pipe shaft needle-punched geotextiles wraps up, and paves absolute altitude place before descending excretion water hole to be located at wall most.
In such scheme, shingle nail 6, cap stone 8 and direction, strip foundation 9 ascender line road all establish every 10.0m together with vertical shrinkage joint 14, the wide 0.02m in shrinkage joint 14, described shingle nail 6, cap stone 8 are communicated with up and down with the shrinkage joint in strip foundation 9.As shown in Figure 4, the position that shingle nail 6 back side 6.4 is corresponding with shrinkage joint 14 spreads double-deck needle-punched geotextiles 15 end of to wall top, wide 0.4m.
The content be not described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (8)
1. the light-duty subgrade support mark structure of twin-stage, it is characterized in that: comprise the two-stage reinforced earth bulkhead (1) being arranged through roadbed filling (2) up and down and separating, platform with slope (3) is provided with between two-stage reinforced earth bulkhead (1), described reinforced earth bulkhead (1) comprises multilayer geo-grid (4), body of wall (5) and shingle nail (6), described body of wall (5) is arranged on the side of multilayer geo-grid (4), shingle nail (6) is fixed on body of wall (5) surface by anchor pole (11), filler (7) is provided with between multilayer geo-grid (4), described geo-grid (4) is provided with revers turn part (4.1), described body of wall (5) comprises the multiple inclusion enclaves (5.1) be successively filled in revers turn part, described shingle nail (6) comprises concrete substrate (6.1) and is crisscrossly arranged on vertical muscle (6.2) in concrete substrate and perpendicular muscle (6.3), described anchor pole (11) one end connection lengthwise rib (6.2), the other end extend in filler (7) through body of wall (5), described shingle nail (6) top is provided with cap stone (8), bottom is provided with strip foundation (9), described strip foundation (9) bottom is provided with hardcore bed (10).
2. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1, is characterized in that: described inclusion enclave (5.1) is for spreading the plastic knitting bagged sand folder gravel mixing grass-seed.
3. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1, it is characterized in that: described revers turn part (4.1) comprises first (4.2) and second (4.3) of the back-pressure in geo-grid (4) of coated inclusion enclave, described second (4.3) are sewed together by pitman (13) and geo-grid (4) are hole-specifically interspersed.
4. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1 or 3, is characterized in that: the length of described revers turn part (4.1) is not less than 2 meters.
5. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1, it is characterized in that: described shingle nail (6) is provided with multiple tapping pipe (12) stretched in body of wall, described tapping pipe (12) is crisscross arranged up and down, adjacent tapping pipe (12) be spaced apart 0.9-1 rice.
6. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1, is characterized in that: the height of described reinforced earth bulkhead (1) is 6-9 rice.
7. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1 or 6, is characterized in that: the ratio of slope of described reinforced earth bulkhead (1) is 1:0.25.
8. the light-duty subgrade support mark structure of a kind of twin-stage according to claim 1, it is characterized in that: described shingle nail (6), cap stone (8) and direction, strip foundation (9) ascender line road are all interval with vertical shrinkage joint (14), described shingle nail (6), cap stone (8) are communicated with up and down with the shrinkage joint in strip foundation (9), and the position corresponding with shrinkage joint, described shingle nail (6) back side is provided with needle-punched geotextiles (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520419367.7U CN204753261U (en) | 2015-06-17 | 2015-06-17 | Light -duty road bed of a doublestage shelves structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520419367.7U CN204753261U (en) | 2015-06-17 | 2015-06-17 | Light -duty road bed of a doublestage shelves structure |
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| CN204753261U true CN204753261U (en) | 2015-11-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235156A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Bilateral Cantilever Retaining Wall pop-up is wrapped up to pull-type reinforced earth railroad embankment structure |
| CN109235158A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Railway high-filled embankment is wrapped up to pull-type stepped ramp type earth structure |
| CN109235157A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Soft base U-type groove basis package is soaked to pull-type reinforced earth railroad embankment structure |
| CN112177037A (en) * | 2019-07-03 | 2021-01-05 | 长沙理工大学 | Reinforced solidified soil retaining wall structure and construction method thereof |
-
2015
- 2015-06-17 CN CN201520419367.7U patent/CN204753261U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109235156A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Bilateral Cantilever Retaining Wall pop-up is wrapped up to pull-type reinforced earth railroad embankment structure |
| CN109235158A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Railway high-filled embankment is wrapped up to pull-type stepped ramp type earth structure |
| CN109235157A (en) * | 2018-09-19 | 2019-01-18 | 中铁二院工程集团有限责任公司 | Soft base U-type groove basis package is soaked to pull-type reinforced earth railroad embankment structure |
| CN112177037A (en) * | 2019-07-03 | 2021-01-05 | 长沙理工大学 | Reinforced solidified soil retaining wall structure and construction method thereof |
| CN112177037B (en) * | 2019-07-03 | 2023-03-17 | 长沙理工大学 | Construction method of reinforced solidified soil retaining wall |
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