CN205387720U - Tertiary light -duty retaining structure of double circular pile pile foundation of superelevation embankment - Google Patents
Tertiary light -duty retaining structure of double circular pile pile foundation of superelevation embankment Download PDFInfo
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- CN205387720U CN205387720U CN201620135683.6U CN201620135683U CN205387720U CN 205387720 U CN205387720 U CN 205387720U CN 201620135683 U CN201620135683 U CN 201620135683U CN 205387720 U CN205387720 U CN 205387720U
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Abstract
The utility model discloses a tertiary light -duty retaining structure of double circular pile pile foundation of superelevation embankment, the tertiary light -duty retaining structure of double circular pile pile foundation sets up in superelevation embankment side, the tertiary light -duty retaining structure of double circular pile pile foundation including dyke side along the road domatic by low dig the step step and keep away from embankment side to the top surface domatic and correspond the whole bank protection of setting with the step, whole bank protection is from last to compriseing bank protection, tertiary light -duty retaining structure and pile foundation cushion cap barricade down, the multisection cushion cap has been built to pile foundation cushion cap barricade bottom, is provided with a reinforced concrete foundation pile under every section cushion cap. The utility model discloses supporting abrupt slope ground and superelevation embankment, preventing not only that steep hillslope gene unstability from sliding, increased the embankment and filled the height, still improved the stability and the suitability of super high embankment, the dual long -term stability of guaranteeing roadbed structure can extensively be popularized and applied in the construction of high -speed railway superelevation embankment.
Description
Technical field
This utility model relates to the retaining structure of railway bed, is specifically related to three grades of light supporting structures of double round stake pile foundation of a kind of superelevation embankment.
Background technology
Along with striding along of railway construction in China cause, the railway network constantly extends to mountain area, building railway process is inevitably encountered many steep slope foundations, simultaneously in order to meet the requirement such as subgrade slope, elevation, steep slope foundation also needs Filling High Embankment or even superelevation embankment.In order to prevent steep slope foundation unstability from sliding and keep filling the long-term stability of the soil body, retaining structure is generally adopted to support.
Retaining structure conventional at present mainly has gravity retaining wall, reinforced earth bulkhead and combination type reinforced earth bulkhead；These three barrier wall structure is because there is following defect in limitation:
1) gravity retaining wall is usually no more than 8m, and bearing height is limited, for superelevation embankment inapplicable；
2) reinforced soil retaining wall can not realize the steep slope foundation integrated support with Filling High Embankment；
3) combination type reinforced earth bulkhead can realize above-mentioned purpose, but the single square pile of the many employings of its foundation pile, square pile size is how relatively big, and when running into disadvantageous geologic condition, production safety can not ensure, has certain limitation.
Therefore for overcoming above-mentioned many defects, it is necessary to provide a kind of novel retaining structure for superelevation embankment.
Summary of the invention
The purpose of this utility model is in that to overcome the deficiencies in the prior art, it is provided that three grades of light supporting structures of double round stake pile foundation of a kind of superelevation embankment；This mark structure achieves the steep slope foundation integrated support with the superelevation embankment soil body.
For achieving the above object, three grades of light supporting structures of double round stake pile foundation of a kind of superelevation embankment designed by this utility model, described double three grades of light supporting structures of round stake pile foundation are arranged on superelevation embankment side, described double three grades of light supporting structures of round stake pile foundation include domatic along embankment side digging and building step and overall bank protection that is domatic away from embankment side and that be correspondingly arranged with step by being low to moderate end face, described overall bank protection is from top to bottom by bank protection, three grades of light supporting structures and pile foundation support table barricade composition, described bank protection includes domatic, improvement soil layer has been filled in slope between described domatic and step, described three grades of light supporting structures include reinforced gabion barricade, reinforcement soil layer has been filled in slope between described reinforced gabion barricade and step；Described three grades of light supporting structures are from top to bottom followed successively by first order slope supporting structure, second level slope supporting structure and third level slope supporting structure；Described pile foundation support table barricade and step have filled packing layer, and the raw material of packing layer is filler or conditioned soil or coarse-grained soil；Having built more piece cushion cap bottom described pile foundation support table barricade, often joint cushion cap is arranged with 4 armored concrete foundation piles.
Further, the ratio of slope of described step is 1: 1.5～2, it is preferred to 1: 1.75.
Yet further, the domatic employing hollow brick of described bank protection is built into, and described domatic ratio of slope is 1: 1.5～2, it is preferred to 1: 1.5.
Yet further, described reinforced gabion barricade adopts reinforced gabion net cage staged to pile up and forms, it is filled with building stones in described reinforced gabion net cage, the vertical inner face of described reinforced gabion net cage is equipped with the long fibre non-woven fabrics of polyester, the vertical inner face bottom welding of described reinforced gabion net cage has Fill Reinforced With Geogrids
Described Fill Reinforced With Geogrids is divided into short reinforcement and long reinforcement；Described short reinforcement and long reinforcement are arranged alternately on reinforced gabion barricade and go deep in reinforcement soil layer, and the layer of described short reinforcement and long reinforcement is from for 0.2～0.5m；Described long reinforcement is fixed through reinforcement soil layer and step.Fill Reinforced With Geogrids is overlapping with the lacing wire wire side of net cage base plate makes lattice guest's metope structure be connected with reinforcement soil layer.Yet further, the length of described short reinforcement is 8～20m.
Yet further, the ratio of slope of the reinforced gabion barricade of described first order slope supporting structure is 1: 0.75～1, it is preferred to 1: 0.75；The ratio of slope of the reinforced gabion barricade of described second level slope supporting structure is 1: 1-1～1.25；It is preferably 1: 1；The ratio of slope of the reinforced gabion barricade of described third level slope supporting structure is 1: 1～1.25；It is preferably 1: 1.
Yet further, described bank protection is connected by bearing platform and three grades of light supporting structures, is connected by ladder platform between the reinforced gabion barricade of described first order slope supporting structure, second level slope supporting structure and third level slope supporting structure；Described third level slope supporting structure is connected with pile foundation support table barricade by platform；The wide respectively 1～2m of described bearing platform；The wide respectively 5～8m of described ladder platform and platform,
Yet further, the bottom reinforced gabion net cage inner wall lower of described first order slope supporting structure, second level slope supporting structure and third level slope supporting structure offers spilled water hole；The spacing of described spilled water hole is 1～3m.
Yet further, it is provided with long reinforcement between described pile foundation support table barricade and step, described long reinforcement stretches in packing layer 5.4, drain pipe is offered bottom described pile foundation support table barricade, described drain pipe is downward-sloping, described drain pipe connects with french drain, and described french drain is arranged between pile foundation support table barricade and step, and the longitudinal pitch of described french drain is 10～20m.
Yet further, the spacing of described armored concrete foundation pile is 3～5m, and the stake footpath of described armored concrete foundation pile is 1～1.5m.
The beneficial effects of the utility model:
Need for because of engineering construction, steep slope foundation also needs to fill the situation of superelevation embankment, this utility model provides three grades of light supporting structures of double round stake pile foundation of a kind of superelevation embankment, steep slope foundation and superelevation embankment have been supported simultaneously, not only prevent steep slope foundation from sliding because of unstability, add embankment height, also improve stability and the suitability of superelevation embankment, the dual long-term stability that ensure that road structure, can wide popularization and application in the construction of high-speed railway superelevation embankment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of double round three grades of light supporting structures of stake pile foundation of this utility model superelevation embankment；
Fig. 2 is the detail view of Fig. 1；
Fig. 3 is the enlarged drawing of A in Fig. 2；
Fig. 4 is the connection figure of reinforced gabion net cage and Fill Reinforced With Geogrids；
In figure, embankment side domatic 1, step 2, overall bank protection 3, bank protection 4, domatic 4.1, improvement soil layer 4.2, bearing platform 4.3, pile foundation support table barricade 5, platform 5.1, gutter 5.2, french drain 5.3, packing layer 5.4, three grades of light supporting structure 6 (first order slope supporting structure 6a, second level slope supporting structure 6b, third level slope supporting structure 6c), reinforced gabion barricade 6.1, reinforced gabion net cage 6.11, building stones 6.12, the long fibre non-woven fabrics 6.13 of polyester, spilled water hole 6.15, reinforcement soil layer 6.2, ladder platform 6.3, cushion cap 7, armored concrete foundation pile 8, Fill Reinforced With Geogrids 9, state Fill Reinforced With Geogrids 9, short reinforcement 9a, long reinforcement 9b, ground layer line 10, above-ground route 11.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail, in order to skilled artisan understands that.
As shown in figures 1-4: three grades of light supporting structures of double round stake pile foundation of a kind of superelevation embankment, double three grades of light supporting structures of round stake pile foundation are arranged on superelevation embankment side, double three grades of light supporting structures of round stake pile foundation include along embankment side domatic 1 and dig and build step 2 and away from embankment side domatic 1 and the overall bank protection 3 that is correspondingly arranged with step 2 by being low to moderate end face, and the ratio of slope of step 2 is 1: 1.75.
Overall bank protection 3 is made up of 4, three grades of light supporting structures 6 of bank protection and pile foundation support table barricade 5 from top to bottom,
Bank protection 4 includes domatic 4.1, and domatic 4.1 adopt hollow brick to be built into, and the height of bank protection 4 is 2m；The ratio of slope of domatic 4.1 is 1: 1.5；Having filled improvement soil layer 4.2 in slope between domatic 4.1 and step 2, improvement soil layer 4.2 adopts the cohesive soil conditioned soil mixing 5% quick lime to fill；
Three grades of light supporting structures 6 include reinforced gabion barricade 6.1, and reinforced gabion barricade 6.1 adopts reinforced gabion net cage 6.11 staged to pile up and forms, the thickness of reinforced gabion net cage 6.11 and highly adopt 0.6*0.6m, and length and width adopts 3*2m；
Reinforcement soil layer 6.2 has been filled in slope between reinforced gabion barricade 6.1 and step 2；Three grades of light supporting structures 6 are from top to bottom followed successively by first order slope supporting structure 6a, second level slope supporting structure 6b and third level slope supporting structure 6c；
Being filled with building stones 6.12 in reinforced gabion net cage 6.11, the vertical inner face of reinforced gabion net cage 6.11 is equipped with the long fibre non-woven fabrics 6.13 of polyester, lays composite geo-membrane 24 water proof that width is not less than 2m bottom reinforced gabion net cage 6.11；The vertical inner face bottom welding of reinforced gabion net cage 6.11 has Fill Reinforced With Geogrids 9,
Fill Reinforced With Geogrids 9 in first order slope supporting structure 6a and second level slope supporting structure 6b adopts 110 GSZs, Fill Reinforced With Geogrids 9 in third level slope supporting structure 6c adopts high-strength 300 Fill Reinforced With Geogrids, and Fill Reinforced With Geogrids 9 is divided into short reinforcement 9a and long reinforcement 9b；Short reinforcement 9a and long reinforcement 9b is arranged alternately on reinforced gabion barricade 6.1 and gos deep in reinforcement soil layer 6.2, and the layer of short reinforcement 9a and long reinforcement 9b is from for 0.3m；Long reinforcement 9b fixes through reinforcement soil layer 6.2 with step 2.Fill Reinforced With Geogrids 9 is overlapping with the lacing wire wire side of reinforced gabion net cage 6.11 base plate makes lattice guest's metope 6.1 structure be connected with reinforcement soil layer 6.2.
The ratio of slope of the reinforced gabion barricade 6.1 of first order slope supporting structure 6a is 1: 0.75；The ratio of slope of the reinforced gabion barricade 6.1 of second level slope supporting structure 6b is 1: 1；The ratio of slope of the reinforced gabion barricade 6.1 of third level slope supporting structure 6c is 1: 1.
The short-and-medium reinforcement 9a length of first order slope supporting structure 6a is 10m, and second level slope supporting structure 6b and the short reinforcement 9a length in third level slope supporting structure 6c are 15m；
Bank protection 4 is connected with three grades of light supporting structures 5 by bearing platform 4.3, is connected by ladder platform 6.3 between the reinforced gabion barricade 6.1 of first order slope supporting structure 6a, second level slope supporting structure 6b and third level slope supporting structure 6c；Third level slope supporting structure 6c is connected with pile foundation support table barricade 5 by platform 5.1；The width of bearing platform 4.3 respectively 1m；The width of ladder platform 6.3 and platform 5.1 respectively 6m,
Bottom reinforced gabion net cage 6.11 inner wall lower of first order slope supporting structure 6a, second level slope supporting structure 6b and third level slope supporting structure 6c offers spilled water hole 6.15；The spacing of spilled water hole 6.15 is 2m.
Pile foundation support table barricade 5 and step 2 have filled packing layer 5.4, and the raw material of packing layer is filler or conditioned soil or coarse-grained soil；Being provided with long reinforcement 9b between pile foundation support table barricade 5 and step 2, this long reinforcement 9b adopts high-strength 300 GSZs, and spacing is 0.6；Long reinforcement 9b stretches in packing layer 5.4,
French drain 5.3 is arranged between pile foundation support table barricade 5 and step 2, and the longitudinal pitch of french drain 5.3 is 15m；Width is 1m, is provided with the soakaway trench of 30cm in french drain, offers drain pipe 5.1 bottom pile foundation support table barricade 5, and the water of french drain 5.3 causes drain pipe 5.1, and drain pipe 5.1 is downward-sloping, and drain pipe 5.1 is the pvc pipe of 3 10cm,
More piece cushion cap 7 has been built bottom pile foundation support table barricade 5, the wide 5.25m of cushion cap 7, thick 1.5m；Often joint cushion cap 7 is arranged with 4 armored concrete foundation piles 8.The spacing of armored concrete foundation pile 8 is 3m, and the stake footpath of armored concrete foundation pile 8 is 1.35m.Armored concrete foundation pile 8 top reserved steel bar is connected with cushion cap 7, no less than 10cm in pile body embedment cushion cap 7.Cushion cap foundation ditch adopts rammer to fill out clay backfill.Foundation pile foundation ditch adopts mud off, and aperture adopts the protection of diameter 1.5m steel pile casting, degree of depth 3m.
Other unspecified part is prior art.Although this utility model is made that detailed description by above-described embodiment; but its a part of embodiment that is only this utility model; rather than whole embodiments; people can also obtain other embodiments according to the present embodiment under without creative premise, and these embodiments broadly fall into this utility model protection domain.
Claims (10)
- null1. three grades of light supporting structures of double round stake pile foundation of a superelevation embankment，It is characterized in that: described double three grades of light supporting structures of round stake pile foundation are arranged on superelevation embankment side，Described double three grades of light supporting structures of round stake pile foundation include domatic along embankment side (1) and dig and build step (2) and away from embankment side domatic (1) and the overall bank protection (3) that is correspondingly arranged with step (2) by being low to moderate end face，Described overall bank protection (3) is from top to bottom by bank protection (4)、Three grades of light supporting structures (6) and pile foundation support table barricade (5) composition，Described bank protection (4) includes domatic (4.1)，Improvement soil layer (4.2) has been filled in slope between described domatic (4.1) and step (2)，Described three grades of light supporting structures (6) include reinforced gabion barricade (6.1)，Reinforcement soil layer (6.2) has been filled in slope between described reinforced gabion barricade (6.1) and step (2)；Described three grades of light supporting structures (6) are from top to bottom followed successively by first order slope supporting structure (6a), second level slope supporting structure (6b) and third level slope supporting structure (6c)；Described pile foundation support table barricade (5) and step (2) have filled packing layer (5.4), more piece cushion cap (7) has been built in described pile foundation support table barricade (5) bottom, often saves cushion cap (7) and is arranged with 4 armored concrete foundation piles (8).
- 2. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 1, it is characterised in that: the ratio of slope of described step (2) is 1: 1.5～2.
- 3. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 1 or claim 2, it is characterized in that: domatic (4.1) of described bank protection (4) adopt hollow brick to be built into, and the ratio of slope of described domatic (4.1) is 1: 1.5～2.
- 4. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 1 or claim 2, it is characterized in that: described reinforced gabion barricade (6.1) adopts reinforced gabion net cage (6.11) staged to pile up and forms, it is filled with building stones (6.12) in described reinforced gabion net cage (6.11), the vertical inner face of described reinforced gabion net cage (6.11) is equipped with the long fibre non-woven fabrics (6.13) of polyester, described reinforced gabion net cage (6.11) vertically inner face bottom welding has Fill Reinforced With Geogrids (9), described Fill Reinforced With Geogrids (9) is divided into short reinforcement (9a) and long reinforcement (9b)；Described short reinforcement (9a) and long reinforcement (9b) are arranged alternately on reinforced gabion barricade (6.1) and go deep in reinforcement soil layer (6.2), and the layer of described short reinforcement (9a) and long reinforcement (9b) is from for 0.2～0.5m；Described long reinforcement (9b) is fixed through reinforcement soil layer (6.2) with step (2).
- 5. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 4, it is characterised in that: the length of described short reinforcement (9a) is 8～20m.
- 6. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 4, it is characterised in that: the ratio of slope of the reinforced gabion barricade (6.1) of described first order slope supporting structure (6a) is 1: 0.75～1；The ratio of slope of the reinforced gabion barricade (6.1) of described second level slope supporting structure (6b) is 1: 1～1.25；The ratio of slope of the reinforced gabion barricade (6.1) of described third level slope supporting structure (6c) is 1: 1～1.25.
- 7. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 6, it is characterized in that: described bank protection (4) is connected with three grades of light supporting structures (6) by bearing platform (4.3), connected by ladder platform (6.3) between the reinforced gabion barricade (6.1) of described first order slope supporting structure (6a), second level slope supporting structure (6b) and third level slope supporting structure (6c)；Described third level slope supporting structure (6c) is connected with pile foundation support table barricade (5) by platform (5.1).
- 8. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 7, it is characterised in that: bottom reinforced gabion net cage (6.11) inner wall lower of described first order slope supporting structure (6a), second level slope supporting structure (6b) and third level slope supporting structure (6c) offers spilled water hole (6.15)；The spacing of described spilled water hole (6.15) is 1～3m.
- 9. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 4, it is characterized in that: between described pile foundation support table barricade (5) and step (2), be provided with long reinforcement (9b), described long reinforcement (9b) is stretched in packing layer (5.4), described pile foundation support table barricade (5) bottom offers drain pipe (5.2), described drain pipe (5.2) is downward-sloping, described drain pipe (5.2) connects with french drain (5.3), described french drain (5.3) is arranged between pile foundation support table barricade (5) and step (2), the longitudinal pitch of described french drain (5.3) is 10～20m.
- 10. three grades of light supporting structures of double round stake pile foundation of superelevation embankment according to claim 1 or claim 2, it is characterized in that: the spacing of described armored concrete foundation pile (8) is 3～5m, the stake footpath of described armored concrete foundation pile (8) is 1～1.5m.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284408A (en) * | 2016-09-20 | 2017-01-04 | 广东舍卫工程技术咨询有限公司 | Pile reinforced soil retaining wall |
| CN107401210A (en) * | 2017-08-30 | 2017-11-28 | 北京顺景园林股份有限公司 | The staged greenery patches that a kind of rainwater on-site elimination utilizes |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
| CN110747887A (en) * | 2019-10-27 | 2020-02-04 | 中铁二院工程集团有限责任公司 | Pile-supported gabion retaining wall structure and construction method thereof |
| CN111979863A (en) * | 2020-08-17 | 2020-11-24 | 中铁八局集团第三工程有限公司 | Construction method for filling high embankment by using foam lightweight concrete adjacent to high-speed rail |
| CN114016544A (en) * | 2021-12-17 | 2022-02-08 | 石家庄铁道大学 | Multistage reinforced earth retaining wall structure and construction method |
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2016
- 2016-02-23 CN CN201620135683.6U patent/CN205387720U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284408A (en) * | 2016-09-20 | 2017-01-04 | 广东舍卫工程技术咨询有限公司 | Pile reinforced soil retaining wall |
| CN107401210A (en) * | 2017-08-30 | 2017-11-28 | 北京顺景园林股份有限公司 | The staged greenery patches that a kind of rainwater on-site elimination utilizes |
| CN108951335A (en) * | 2018-09-06 | 2018-12-07 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of light-duty escarpment road structure |
| CN110747887A (en) * | 2019-10-27 | 2020-02-04 | 中铁二院工程集团有限责任公司 | Pile-supported gabion retaining wall structure and construction method thereof |
| CN111979863A (en) * | 2020-08-17 | 2020-11-24 | 中铁八局集团第三工程有限公司 | Construction method for filling high embankment by using foam lightweight concrete adjacent to high-speed rail |
| CN114016544A (en) * | 2021-12-17 | 2022-02-08 | 石家庄铁道大学 | Multistage reinforced earth retaining wall structure and construction method |
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