CN103104264A - Urban interchange tunnel - Google Patents
Urban interchange tunnel Download PDFInfo
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- CN103104264A CN103104264A CN2013100330030A CN201310033003A CN103104264A CN 103104264 A CN103104264 A CN 103104264A CN 2013100330030 A CN2013100330030 A CN 2013100330030A CN 201310033003 A CN201310033003 A CN 201310033003A CN 103104264 A CN103104264 A CN 103104264A
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Abstract
The invention discloses an urban interchange tunnel which comprises an upper-layer tunnel and a lower-layer tunnel, and the upper-layer tunnel and the lower-layer tunnel are arranged in an overhead crossing mode. A bottom plate and side walls are arranged in the upper-layer tunnel, and a plurality of piles are arranged under the bottom plate and located outside the lower-layer tunnel. According to the urban interchange tunnel, the upper-layer tunnel and the lower-layer tunnel are arranged in the overhead crossing mode, the plurality of piles are arranged under the bottom plate at the same time, when construction, particularly shield construction, is carried out in the lower-layer tunnel, the bottom plate and the piles form a bearing frame which transmits pressure of the upper-layer tunnel to bottom soil mass through the lower-layer tunnel, stress on surrounding soil layers from construction of the lower-layer tunnel is counteracted at the same time, and safety of the upper-layer tunnel and the ground is guaranteed. Meanwhile, by means of the urban interchange tunnel, mutual avoiding when the upper-layer tunnel and the lower-layer tunnel are crossed is avoided, an underground corridor zone is adequately utilized, and production cost is saved at the same time. The urban interchange tunnel is used in the field of underground tunnel engineering.
Description
Technical field
The present invention is used for the subterranean tunnel engineering field, particularly relates to a kind of city intersection tunnel.
Background technology
Along with the development in city, urban population density is increasing, and traffic jam issue is on the rise, and various grounds, underground traffic system are crisscross.Overpass bridge because noise large, affect civic landscape, replaced by sunk type city intersection tunnel just gradually.Subway more and more comes into one's own as a kind of main mode of transportation that solves large size city peak passenger flow.Both are subterranean tunnel, all will utilize underground corridor band, unavoidably interact.
Subterranean tunnel adopts shield construction more, and darker subway as buried depth passes through in the business district often.The situation of conllinear or intersection occurs in buried regions different subterranean tunnel sometimes.Practice at home and abroad shows, the disturbed strata that shield-tunneling construction can be in various degree and cause surface settlement, and the structural safety that is positioned at the tunnel, upper strata can be on the hazard with normal use.
Existing control shield-tunneling construction is to Nearby Structure harmful effect method, a kind of is the process control of strengthening shield-tunneling construction, adjust in real time various parameters, safety factor in soil pressure calculating process according to the result of surface settlement in construction, soil pressure in shield structure process is controlled at a zone of reasonableness, the sedimentation value that the shield driving speed that adopts according to construction simultaneously, ground occur carries out repeatedly grouting filling, fills up the space that the stratum is stayed by disturbance; Another kind is to verify in advance geological condition, cause the empirical data of sedimentation result by the varying strength soil layer according to shield-tunneling construction in the past, and Practical Project is to the requirement of soil body sedimentation (or displacement), carry out engineering analogy, then the soil body arround the shield structure is carried out ground and process, it is added be affixed to respective strengths.
Shield driving cause the fundamental cause of surface settlement be when driving caused Stratum Loss and shield structure cavern around the stratum be disturbed or shear failure fixed again, can be divided into initial stage sedimentation, excavation face sedimentation (or protuberance), afterbody sedimentation, afterbody space sedimentation and continue for a long time the double teacher such as sedimentation by the ground settlement Changing Pattern, existing processing scheme can not have the treatment cycle of length like this, and the sedimentation in later stage may become potential safety hazard or disease root.Due to the disguise of underground construction, be no matter to strengthen construction control, still ground is processed in advance, and the problem that runs into is all that the engineering process range is difficult to clearly, and actual effect is difficult to check, and construction costs is difficult to control, in case process unsuccessfully, consequence is seriously and remedy difficulty.
Summary of the invention
For addressing the above problem, the invention provides a kind of city intersection tunnel that affects tunnel, upper strata or ground safety when avoiding lower floor's tunneling shield and can take full advantage of underground corridor band.
The technical solution adopted for the present invention to solve the technical problems is: a kind of city intersection tunnel, comprise tunnel, clover leaf upper strata and lower floor tunnel, and be provided with base plate and side wall in the tunnel, upper strata, the below of base plate is provided with some pile foundations in the outside, lower floor tunnel.
Be further used as the improvement of technical solution of the present invention, also be provided with middle wall in the tunnel, upper strata and be arranged in wall and the top board of side wall upside.
Be further used as the improvement of technical solution of the present invention, pile foundation comprises and is located at the preferred stake under side wall or middle wall and is located at side wall or oblique general of below of middle wall.
Be further used as the improvement of technical solution of the present invention, be equipped with dark beam between each general stake and base plate, base plate is provided with toe of wall outside side wall.
Be further used as the improvement of technical solution of the present invention, each pile foundation is bored pile and all is not less than 1 meter with the clear distance of lower floor tunnel outer surface.
Be further used as the improvement of technical solution of the present invention, the tunnel, upper strata is underground highway tunnel, the lower floor tunnel is Shield-bored tunnels, and each pile foundation includes pass segment and the close lower floor tunnel that bears and transmit tunnel, upper strata pressure and the carrying section that is subjected to extra pile side friction.
Be further used as the improvement of technical solution of the present invention, the lower floor tunnel parallel or intersect pass the tunnel, upper strata under.
beneficial effect of the present invention: in this city intersection tunnel, tunnel, upper strata and lower floor's tunnel cross arrange, floor below is provided with some pile foundations simultaneously, construct in the lower floor tunnel, when particularly carrying out shield-tunneling construction, form stress frame by base plate and pile foundation, the pressure in tunnel, upper strata is walked around the lower floor tunnel be delivered to the bottom soil body, the construction of offsetting simultaneously the lower floor tunnel is to the stress of soil layer on every side, guaranteed the safety on tunnel, upper strata and ground, simultaneously, also avoided grade separation tunnel mutually dodging when intersecting by the present invention, saved cost of production when taking full advantage of underground corridor band.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
To be that first embodiment of the invention lower floor tunnel is parallel pass front view under the tunnel, upper strata to Fig. 1;
To be that first embodiment of the invention lower floor tunnel is parallel pass lateral view under the tunnel, upper strata to Fig. 2;
Fig. 3 is that first embodiment of the invention lower floor tunnel cross passes front view under the tunnel, upper strata;
Fig. 4 is that first embodiment of the invention lower floor tunnel cross passes lateral view under the tunnel, upper strata;
To be that second embodiment of the invention lower floor tunnel is parallel pass front view under the tunnel, upper strata to Fig. 5;
Fig. 6 is that second embodiment of the invention lower floor tunnel cross passes front view under the tunnel, upper strata.
The specific embodiment
With reference to Fig. 1～Fig. 6, the invention provides a kind of city intersection tunnel, comprise tunnel, clover leaf upper strata 1 and lower floor tunnel 2, be provided with base plate 11 and side wall 12 in tunnel, upper strata 1, the below of base plate 11 is provided with some pile foundations 21 in 2 outsides, lower floor tunnel.
in this city intersection tunnel, tunnel, upper strata 1 is arranged in a crossed manner with lower floor tunnel 2, base plate 11 belows are provided with some pile foundations 21 simultaneously, construct in lower floor tunnel 2, when particularly carrying out shield-tunneling construction, form stress frame by base plate 11 and pile foundation 21, the pressure in tunnel, upper strata 1 is walked around lower floor tunnel 2 be delivered to the bottom soil body, the construction of offsetting simultaneously lower floor tunnel 2 is to the stress of soil layer on every side, guaranteed the safety on tunnel, upper strata 1 and ground, in addition, also avoided grade separation tunnel mutually dodging when intersecting by the present invention, saved cost of production when taking full advantage of underground corridor band.
As the preferred embodiment of the present invention, also be provided with middle wall 14 in tunnel, upper strata 1 and be arranged in wall 14 and the top board 13 of side wall 12 upsides.
Tunnel, upper strata 1 adds middle wall 14 for improving the supporting capacity of top board 13 at top board 13 and 11 of base plates.
As the preferred embodiment of the present invention, pile foundation 21 comprises and is located at the preferred stake under side wall 12 or middle wall 14 and is located at side wall 12 or oblique general of below of middle wall 14.
As the preferred embodiment of the present invention, each general stake and 11 of base plates are equipped with dark beam 3, and base plate 11 is provided with toe of wall 15 in side wall 12 outsides.
The preferred setting position of pile foundation 21 be side wall 12 or/and middle wall 14 under, preferred stake forms vertical power transmission route by middle wall 14 or the side wall 12 with base plate 11 upsides, reduces the twisting stress of base plate 11 pile foundations 21 and side wall 12 or 14 generations of middle wall; In the middle of wall 14 and side wall 12 or side wall 12 and side wall 12 spacings when excessive, for improving the supporting capacity of base plate 11, side wall 12 or middle wall 14 tiltedly below add some general stakes, but general stake is provided with dark beam 3 with 11 of base plates, the anti-strain capacity that is connected changeover portion of raising pile foundation 21 and base plate 11.
As the preferred embodiment of the present invention, each pile foundation 21 is bored pile and all is not less than 1 meter with the clear distance of lower floor tunnel 2 outer surfaces.
As the preferred embodiment of the present invention, tunnel, upper strata 1 is underground highway tunnel, lower floor tunnel 2 is Shield-bored tunnels, and each pile foundation 21 includes pass segment 211 and the close lower floor tunnel 2 that bears and transmit tunnel, upper strata 1 pressure and the carrying section 210 that is subjected to extra pile side friction.
As the preferred embodiment of the present invention, lower floor tunnel 2 parallel or intersect pass tunnel, upper strata 1 under.
Before constructing in lower floor tunnel 2 (particularly before shield-tunneling construction), according to the interleaved mode of lower floor tunnel 2 with tunnel, upper strata 1, hole and pour into preferred stake at middle wall 14 or side wall 12 downsides, hole between preferred stake and pour into general stake, stress suffered according to the different depth section of each pile foundation 21 is different, set up the pass segment 211 that bears and transmit tunnel, upper strata 1 pressure away from 2, lower floor tunnel separately, and near lower floor tunnel 2 and be subjected to the rub carrying section 210 of stress of extra side.
When lower floor tunnel 2 is parallel pass tunnel, upper strata 1 under the time, at the downside of base plate 11, three campshed bases 21 are set, support the tunnel agent structure, base plate 11 is laterally crossed over the shield structure section of lower floor's tunnel 2 upper and lower lines.Because both are parallel, structural load is larger, so allow pile foundation 21 stressed to optimize structure with side wall 12 or middle wall 14 position alignment in tunnel, upper strata 1 as far as possible.Vertical in the tunnel, determine pile spacing according to the size of required pile foundation 21 support forces, then in a row arrange.After pile foundation 21 was set in this way, structure formed lateral stressed framework, and the most unfavorable processing condition when base plate 11 not only needs to check the buoyancy maximum also will check the situation after its lower soil body comes to nothing, and adopts two way system, to satisfy carrying and security needs.
When lower floor tunnel 2 intersect pass tunnel, upper strata 1 under the time, affected section is less comparatively speaking, this moment is in order to support agent structure, three campshed bases 21 vertically are set along the tunnel, structure is at the shield structure section of longitudinal crossing lower floor tunnel 2 upper and lower lines, and at tunnel lateral direction, determine stake footpath and pile spacing according to the size of required pile foundation 21 support forces, more in a row arrange.At this moment, structure vertically also becomes primary structure member, and top board 13 is no longer pressed constructional reinforcement with the interior longitudinal reinforcement of base plate 11, but will be according to the actual loading calculative determination.Simultaneously because pile foundation 21 positions fail to aim at side wall 12 or middle wall 14, horizontal secretly beam 3 need to be set on the stake top.
In addition when calculating pile foundation 21 bearing capacities, soil body angle of rupture 4 is (45+ φ/2) °, and the pile side friction of the above scope of soil body angle of rupture 4 (pass segment 211) do not consider, and wherein φ is the pile peripheral earth angle of internal friction.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (7)
1. city intersection tunnel, it is characterized in that: comprise tunnel, clover leaf upper strata (1) and lower floor tunnel (2), be provided with base plate (11) and side wall (12) in tunnel, described upper strata (1), the below of described base plate (11) is provided with some pile foundations (21) in lower floor tunnel (2) outside.
2. city intersection according to claim 1 tunnel, is characterized in that: also be provided with middle wall (14) in tunnel, described upper strata (1) and be arranged in described wall (14) and the top board (13) of side wall (12) upside.
3. city intersection according to claim 2 tunnel is characterized in that: described pile foundation (21) comprise be located at side wall (12) or/preferred stake under He Zhongqiang (14) and be located at side wall (12) or/the tiltedly general stake of below of He Zhongqiang (14).
4. city intersection according to claim 3 tunnel is characterized in that: be equipped with dark beam (3) between described each general stake and base plate (11), described base plate (11) is provided with toe of wall (15) outside side wall (12).
5. according to claim 1～4 described city intersection of any one tunnels is characterized in that: described each pile foundation (21) is bored pile and all is not less than 1 meter with the clear distance of lower floor tunnel (2) outer surface.
6. city intersection according to claim 5 tunnel, it is characterized in that: tunnel, described upper strata (1) is underground highway tunnel, described lower floor tunnel (2) is Shield-bored tunnels, and described each pile foundation (21) includes pass segment (211) and close lower floor tunnel (2) of bearing and transmitting tunnel, upper strata (1) pressure and the carrying section (210) that is subjected to extra pile side friction.
7. city intersection according to claim 5 tunnel is characterized in that: described lower floor tunnel (2) parallel or intersect pass tunnel, upper strata (1) under.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033003.0A CN103104264B (en) | 2013-01-28 | 2013-01-28 | Urban interchange tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310033003.0A CN103104264B (en) | 2013-01-28 | 2013-01-28 | Urban interchange tunnel |
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| CN103104264A true CN103104264A (en) | 2013-05-15 |
| CN103104264B CN103104264B (en) | 2015-05-06 |
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| CN201310033003.0A Active CN103104264B (en) | 2013-01-28 | 2013-01-28 | Urban interchange tunnel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790596A (en) * | 2014-02-10 | 2014-05-14 | 中交公路规划设计院有限公司 | Double-layer interchange tunnel |
| CN107100629A (en) * | 2017-06-30 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | A kind of control method and structure of shield tunnel auger ground plastic deformation |
| CN110424970A (en) * | 2019-07-16 | 2019-11-08 | 安徽省交通航务工程有限公司 | A method of viaduct bridge pier formation shield tunnel is worn sticking shield side in texture stratum again |
| CN112145195A (en) * | 2020-09-02 | 2020-12-29 | 中铁五局集团第四工程有限责任公司 | Construction method of double-layer orthogonal frame culvert in underground excavation station |
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| CN101775987A (en) * | 2010-02-02 | 2010-07-14 | 北京交通大学 | Zero spacing construction method for overlapping part of upper main tunnel and lower main tunnel of underground overpass |
| KR20100132259A (en) * | 2009-06-09 | 2010-12-17 | 한국건설기술연구원 | Rock shed tunnel structure as retaining wall and contructing method for such rock shed tunnel structure |
| CN202117687U (en) * | 2011-06-22 | 2012-01-18 | 中铁二院工程集团有限责任公司 | Lining structure of flyover-crossing railway tunnels |
| CN203097900U (en) * | 2013-01-28 | 2013-07-31 | 广东省冶金建筑设计研究院 | Municipal grade separation tunnel |
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2013
- 2013-01-28 CN CN201310033003.0A patent/CN103104264B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| KR20100132259A (en) * | 2009-06-09 | 2010-12-17 | 한국건설기술연구원 | Rock shed tunnel structure as retaining wall and contructing method for such rock shed tunnel structure |
| CN101775987A (en) * | 2010-02-02 | 2010-07-14 | 北京交通大学 | Zero spacing construction method for overlapping part of upper main tunnel and lower main tunnel of underground overpass |
| CN202117687U (en) * | 2011-06-22 | 2012-01-18 | 中铁二院工程集团有限责任公司 | Lining structure of flyover-crossing railway tunnels |
| CN203097900U (en) * | 2013-01-28 | 2013-07-31 | 广东省冶金建筑设计研究院 | Municipal grade separation tunnel |
Non-Patent Citations (1)
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| 方万进: "东莞厚街大道立交隧道工程设计", 《广东土木与建筑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790596A (en) * | 2014-02-10 | 2014-05-14 | 中交公路规划设计院有限公司 | Double-layer interchange tunnel |
| CN107100629A (en) * | 2017-06-30 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | A kind of control method and structure of shield tunnel auger ground plastic deformation |
| CN107100629B (en) * | 2017-06-30 | 2023-11-07 | 中铁第四勘察设计院集团有限公司 | Control method and structure for plastic deformation of soft soil layer lying under shield tunnel |
| CN110424970A (en) * | 2019-07-16 | 2019-11-08 | 安徽省交通航务工程有限公司 | A method of viaduct bridge pier formation shield tunnel is worn sticking shield side in texture stratum again |
| CN112145195A (en) * | 2020-09-02 | 2020-12-29 | 中铁五局集团第四工程有限责任公司 | Construction method of double-layer orthogonal frame culvert in underground excavation station |
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| Publication number | Publication date |
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| CN103104264B (en) | 2015-05-06 |
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