CN106337373B - Construction method for obliquely penetrating existing line overhead jacking box culvert - Google Patents
Construction method for obliquely penetrating existing line overhead jacking box culvert Download PDFInfo
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- CN106337373B CN106337373B CN201510409590.8A CN201510409590A CN106337373B CN 106337373 B CN106337373 B CN 106337373B CN 201510409590 A CN201510409590 A CN 201510409590A CN 106337373 B CN106337373 B CN 106337373B
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Abstract
The invention belongs to the field of underground engineering, and particularly relates to a construction method for obliquely penetrating an existing line overhead jacking box culvert and a pipe joint structure applied by the construction method, which is carried out according to the following steps: (1) a foundation pit is excavated at one side of the line which is beneficial to construction and is used as a pipe joint prefabricating site; (2) prefabricating pipe joints according to a designed scheme of obliquely jacking the box culvert pipe joints; (3) constructing a hole digging pile; (4) an overhead line; (5) adopting a linear jacking scheme along the direction of the engineering line to jack the box culvert for construction; (6) and (3) dismantling the overhead equipment to recover the line, wherein the applied pipe joints comprise pipe joint top plates, pipe joint bottom plates, first pipe joint side walls, second pipe joint side walls, pipe joint mid-partition walls and jacking buttresses. The invention has the advantages of small overhead railway range, low jacking control difficulty, high box culvert positioning precision and good implementation effect.
Description
Technical Field
The invention belongs to the field of underground engineering, and particularly relates to a construction method for obliquely penetrating an existing line overhead jacking box culvert and a pipe joint structure applied by the construction method.
Background
The construction of the overhead jacking of the underpass railway generally continues to use an orthogonal jacking construction technology, for the overhead jacking engineering of the inclined underpass railway, an orthogonal jacking method is adopted, the construction design is carried out by aiming at the situation that the position of a box culvert is consistent with the position of a pre-designed box culvert when the box culvert is in place, and for the box culvert with a large section, the box culvert is influenced by the implementation difficulty, and a porous box culvert separation type scheme is adopted. The existing railway line of box culvert inclined crossing is constructed by overhead jacking, if an orthogonal jacking method is adopted, the overhead area is large, the implementation effect of the method is poor, the whole quality of the engineering is not high due to the influence of the position precision of the box culvert after the box culvert is in place, and the troubles of expropriation and removal and completion acceptance check are caused.
Disclosure of Invention
Aiming at the technical problems, the invention provides the construction method for obliquely penetrating the existing line overhead jacking box culvert and the pipe joint structure applied by the construction method, wherein the construction method has the advantages of small overhead railway range, low jacking control difficulty, high box culvert positioning precision and good implementation effect.
The technical scheme adopted by the invention is as follows:
a construction method for obliquely penetrating an existing line overhead jacking box culvert is characterized by comprising the following steps of:
(1) a foundation pit is excavated at one side of the line which is beneficial to construction and is used as a pipe joint prefabricating site;
(2) prefabricating pipe joints according to a designed scheme of obliquely jacking the box culvert pipe joints;
(3) constructing a hole digging pile;
(4) an overhead line;
(5) adopting a linear jacking scheme along the direction of the engineering line to jack the box culvert for construction;
(6) and (5) removing the overhead equipment and recovering the line.
In the step (4), the overhead main longitudinal beam is parallel to the existing line or a tangent line thereof, the overhead transverse lifting beam is parallel to the jacking line, the main fulcrum pile is arranged at a position close to the box culvert, the auxiliary fulcrum pile is arranged at the edge of the overhead range, and the temporary fulcrum pile is arranged in the box culvert range.
The utility model provides a run through pipe coupling structure that existing line built on stilts box culvert was used to one side, its characterized in that, includes pipe coupling roof, pipe coupling bottom plate, first pipe coupling side wall, second pipe coupling side wall, pipe coupling mid-board, top buttress, the pipe coupling roof is located the top of pipe coupling bottom plate, the upper end of first pipe coupling side wall with the one end of pipe coupling roof links to each other and its lower extreme with the one end of pipe coupling bottom plate links to each other, the upper end of second pipe coupling side wall with the other end of pipe coupling roof links to each other and its lower extreme with the other end of pipe coupling bottom plate links to each other, the upper end of pipe coupling mid-board with the pipe coupling roof links to each other and its lower extreme with the pipe coupling bottom plate links to each other, pipe coupling mid-board is located between first pipe coupling, the second pipe coupling, the buttress is located the below of pipe coupling bottom plate is advanced.
The first pipe joint side wall, the second pipe joint side wall and the pipe joint mid-board are parallel to the jacking line, the pipe joint top plate is parallel to the overhead line, and the pipe joint bottom plate is parallel to the overhead line in the jacking front.
The jacking buttress is positioned behind the jacking of the pipe joint bottom plate.
The plane of the jacking buttress is orthogonal to the jacking route.
The number of the jacking buttress is multiple.
The invention has the beneficial effects that:
1. the method provides key technical support for a new construction method of box culvert inclined-through railway overhead jacking, can effectively control the stability of a line, reduces the difficulty of inclined-through railway overhead jacking construction, and has low jacking control difficulty;
2. the inclined jacking technology provided by the invention is beneficial to controlling the jacking precision of the box culvert, improves the construction effect of jacking the box culvert, and has high box culvert in-place precision and good implementation effect;
3. the oblique crossing railway scheme provided by the invention reduces the overhead range of the oblique crossing railway according to an orthogonal scheme, has a small overhead railway range, reduces the railway reinforcing protection range and the equipment transfer and modification range, and reduces the engineering investment;
4. the construction of the obliquely jacking box culvert provided by the invention is also suitable for the engineering of obliquely penetrating the existing line through the large-span box culvert, and the application range is wider;
5. the obliquely-penetrated railway box culvert pipe joint provided by the invention realizes the feasibility of linearly jacking a box culvert along the line direction;
6. the pipe joint has a simple structure and can be directly applied to the construction of the existing line box culvert of the inclined crossing railway.
Description of the drawings:
FIG. 1 is a schematic cross-sectional view of a pipe section according to the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic top view of the present invention;
fig. 4 is a schematic view of the oblique jacking method of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
in the figure, 1, a pipe joint top plate, 2, a pipe joint bottom plate, 3, a first pipe joint side wall, 4, a pipe joint middle partition wall, 5, a jacking buttress, 6, a sliding plate, 7, a guide buttress, 8, a reverse back, 9, a main fulcrum pile, 10, an auxiliary fulcrum pile, 11, a temporary fulcrum pile, 12, a reverse fulcrum pile, 13, a distribution beam, 14, an overhead main longitudinal beam, 15, an overhead transverse lifting beam, 16, a protection pile and 17, a second pipe joint side wall are arranged.
Embodiment as shown in fig. 1-4, a construction method for obliquely penetrating an existing line overhead jacking box culvert is carried out according to the following steps:
(1) a foundation pit is excavated at one side of the line which is beneficial to construction and is used as a pipe joint prefabricating site;
(2) prefabricating pipe joints according to a designed scheme of obliquely jacking the box culvert pipe joints;
(3) constructing a hole digging pile;
(4) the overhead line comprises an overhead main longitudinal beam 14, an overhead transverse lifting beam 15, a main fulcrum pile 9, an auxiliary fulcrum pile 10 and a temporary fulcrum pile 11, wherein the overhead main longitudinal beam is parallel to the existing line or a tangent line of the existing line, the overhead transverse lifting beam is parallel to a jacking line, the position close to a box culvert is provided with the main fulcrum pile 9, the edge of an overhead range is provided with the auxiliary fulcrum pile 10, and the range of the box culvert is;
(5) adopting a linear jacking scheme along the direction of the engineering line to jack the box culvert for construction;
(6) and (5) removing the overhead equipment and recovering the line.
As shown in fig. 1-4, a pipe joint structure for obliquely penetrating an existing line overhead jacking box culvert comprises a pipe joint top plate 1, a pipe joint bottom plate 2, a first pipe joint side wall 3, a second pipe joint side wall 17, a pipe joint middle partition wall 4 and a jacking buttress 5, wherein the pipe joint top plate 1 is positioned above the pipe joint bottom plate 2, the upper end of the first pipe joint side wall 3 is connected with one end of the pipe joint top plate 1, the lower end of the first pipe joint side wall is connected with one end of the pipe joint bottom plate 2, the upper end of the second pipe joint side wall 17 is connected with the other end of the pipe joint top plate 1, the lower end of the second pipe joint side wall is connected with the other end of the pipe joint bottom plate 2, the upper end of the pipe joint middle partition wall 4 is connected with the pipe joint top plate 1, the lower end of the pipe joint middle partition wall 4 is connected with the pipe joint bottom plate 2, the pipe joint middle partition wall 4 is positioned between the first pipe joint side wall 3 and.
The first pipe joint side wall 3, the second pipe joint side wall 17 and the pipe joint intermediate wall 4 are parallel to a jacking line, the pipe joint top plate 1 is parallel to an overhead line, and the pipe joint bottom plate 2 is parallel to the overhead line in the jacking front.
The jacking buttress 5 is positioned at the jacking rear part of the pipe joint bottom plate 2.
The plane of the jacking buttress 5 is orthogonal to the jacking route.
The number of the top piers 5 is plural.
The concrete construction steps are as follows:
(1) selecting a prefabricated site according to site conditions on two sides of an existing line;
(2) designing a box culvert pipe joint main body part according to the specification and the limit requirement of a local planning department on a box culvert;
(3) calculating the maximum jacking force required by jacking, and setting the number of jacking picks required by jacking by combining the design magnitude of the jacking force;
(4) designing the size of a jacking buttress 5 at the position of the pipe joint bottom plate 2 according to the number of the jacking picks;
(5) constructing a back-back pile, excavating a prefabricated foundation pit, prefabricating pipe joints, constructing a sliding plate 6 and a guide pier 7, and prefabricating a pipe joint bottom plate 2, a jacking buttress 5, a first pipe joint side wall 3, a second pipe joint side wall 17, a pipe joint middle partition wall 4 and a pipe joint top plate 1 in sequence;
(6) excavating a main fulcrum pile 9, an auxiliary fulcrum pile 10, a temporary fulcrum pile 11 and a protection pile 16;
(7) the method comprises the following steps of carrying out relocation protection on electric power, overhead contact networks, communication, signals and the like, and utilizing overhead main longitudinal beams 14 and overhead transverse lifting beams 15 to lift an overhead line;
(8) jacking pipe joints for construction;
(9) and (5) removing the overhead equipment and recovering the line.
Although 1 embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (2)
1. A construction method for obliquely penetrating an existing line overhead jacking box culvert is characterized by comprising the following steps of (1) selecting a line side excavation foundation pit which is beneficial to construction as a pipe joint prefabricating field; (2) prefabricating pipe joints according to a designed scheme of obliquely jacking box culvert pipe joints, wherein the pipe joints are obliquely crossed with railway lines; (3) Constructing hole digging piles, wherein all fulcrum piles are parallel to the transverse line direction of the pipe joints, all the fulcrum piles are obliquely crossed with the railway line, main fulcrum piles and temporary fulcrum piles on two sides of the railway line are in straight lines with corresponding counter-force fulcrum piles, and each group of the main fulcrum piles and the temporary fulcrum piles is parallel to the longitudinal line direction of the pipe joints; (4) the main longitudinal beam of the overhead line is parallel to the railway, the transverse lifting beam is parallel to the advancing direction, and the main longitudinal beam of the overhead line and the transverse lifting beam are crossed obliquely; (5) adopting a linear jacking scheme along the direction of the engineering line to jack the box culvert for construction; (6) removing the overhead equipment and recovering the line; the pipe joint structure comprises a pipe joint top plate, a pipe joint bottom plate, a first pipe joint side wall, a second pipe joint side wall, a pipe joint middle partition wall and a jacking buttress, wherein the pipe joint top plate is in a diamond shape, the pipe joint top plate is positioned above the pipe joint bottom plate, the upper end of the first pipe joint side wall is connected with one end of the pipe joint top plate, the lower end of the first pipe joint side wall is connected with one end of the pipe joint bottom plate, the upper end of the second pipe joint side wall is connected with the other end of the pipe joint top plate, the lower end of the second pipe joint side wall is connected with the other end of the pipe joint bottom plate, the upper end of the pipe joint middle partition wall is connected with the pipe joint top plate, the lower end of the pipe joint middle partition wall is connected with the pipe joint bottom plate, the pipe joint middle partition wall is positioned between the first pipe joint side wall and the second pipe joint side wall, and the first pipe joint side wall, the second pipe joint middle partition wall are parallel to a jacking route, the pipe joint top plate is parallel to the overhead line, the pipe joint bottom plate jacks in the front and is parallel to the overhead line, the jacking buttress is located below the pipe joint bottom plate, the jacking buttress is located behind the pipe joint bottom plate, the plane of the jacking buttress is orthogonal to the jacking line, and the number of the jacking buttress is multiple.
2. The construction method for obliquely penetrating the existing line overhead jacking box culvert according to claim 1, wherein in the step (4), the overhead main longitudinal beam is parallel to the existing line or a tangent line thereof, the overhead cross lifting beam is parallel to the jacking line, the main fulcrum pile is arranged at a position close to the box culvert, the auxiliary fulcrum pile is arranged at the edge of the overhead range, and the temporary fulcrum pile is arranged in the box culvert range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510409590.8A CN106337373B (en) | 2015-07-13 | 2015-07-13 | Construction method for obliquely penetrating existing line overhead jacking box culvert |
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| CN201510409590.8A CN106337373B (en) | 2015-07-13 | 2015-07-13 | Construction method for obliquely penetrating existing line overhead jacking box culvert |
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| CN106337373A CN106337373A (en) | 2017-01-18 |
| CN106337373B true CN106337373B (en) | 2021-03-30 |
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| CN113217002B (en) * | 2021-04-09 | 2024-02-13 | 中铁六局集团有限公司 | Construction method for jacking side positions crossing existing lines in frame culvert points |
| CN113699895B (en) * | 2021-09-29 | 2022-07-01 | 西安建筑科技大学 | Construction method for overhead jacking of frame-structured bridge into existing line of multiple tracks |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847617A (en) * | 2006-05-17 | 2006-10-18 | 中铁十六局集团有限公司 | Construction process of pushing in long and large box culvert under taxiway in airport |
| CN101963061A (en) * | 2010-10-19 | 2011-02-02 | 浙江省建工集团有限责任公司 | Construction method for underground box culvert of existing railway line |
| CN102979041A (en) * | 2012-12-26 | 2013-03-20 | 中铁七局集团郑州工程有限公司 | Soft overhead reinforcing jacking method for construction of span box bridge of jacking block of underpass turnout group of railway |
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2015
- 2015-07-13 CN CN201510409590.8A patent/CN106337373B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847617A (en) * | 2006-05-17 | 2006-10-18 | 中铁十六局集团有限公司 | Construction process of pushing in long and large box culvert under taxiway in airport |
| CN101963061A (en) * | 2010-10-19 | 2011-02-02 | 浙江省建工集团有限责任公司 | Construction method for underground box culvert of existing railway line |
| CN102979041A (en) * | 2012-12-26 | 2013-03-20 | 中铁七局集团郑州工程有限公司 | Soft overhead reinforcing jacking method for construction of span box bridge of jacking block of underpass turnout group of railway |
Non-Patent Citations (1)
| Title |
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| 大跨度小交角箱涵架空顶进设计关键技术;倪伟伟，杨晓燕;《低碳世界》;20150329;第234-236页 * |
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Effective date of registration: 20190202 Address after: 300000 Tianjin Free Trade Test Zone (Airport Economic Zone) No. 36 West Central Road Applicant after: CHINA RAILWAY LIUYUAN GROUP CO., LTD. Address before: 300000 Tianjin Binhai New Area Free Trade Zone (Airport Economic Zone), 2-3116 South Road 88. Applicant before: CHINA RAILWAY LIUYUAN GROUP CO., LTD. Applicant before: Zhongtie Tunnel Survey and Design Inst., Ltd. |
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