CN112663416B - Design and construction method for shore bridge tunnel-connected highway - Google Patents
Design and construction method for shore bridge tunnel-connected highway Download PDFInfo
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- CN112663416B CN112663416B CN202011564606.XA CN202011564606A CN112663416B CN 112663416 B CN112663416 B CN 112663416B CN 202011564606 A CN202011564606 A CN 202011564606A CN 112663416 B CN112663416 B CN 112663416B
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Abstract
The invention discloses a design and construction method of a shore bridge tunnel-connected highway, which comprises the following steps: generating a preliminary design scheme; cutting and straightening the existing old road in the trimming area; designing a construction access road; designing tunnels and bridges according to the primary design scheme, and designing operation safety guarantee measures; integrating the preliminary design scheme, the design of construction roads, the design of tunnels and bridges and the design of operation safety guarantee measures into a construction scheme of the reservoir-shore bridge-tunnel-connected highway; and constructing according to the construction scheme of the highway connected with the reservoir bridge and the tunnel. The design and construction method for the highway connected with the shore bridge and the tunnel provided by the invention has the advantages that the terrain and geological conditions are combined when the route is arranged, the bridge and tunnel construction procedures, the later operation safety and the maintenance convenience are comprehensively considered, the terrain conditions are fully utilized, the adverse influence of adverse geology on the operation of the highway is avoided, the applicability is wide, and the large-scale popularization is facilitated.
Description
Technical Field
The invention relates to a highway design construction technology, in particular to a design construction method of a shore bridge tunnel-connected highway.
Background
In recent years, more and more mountain highways have been planned and constructed. The highway brings great convenience to the mountain traffic. However, the highway belongs to a high-grade highway, the requirement on linear indexes is high, the terrain of a mountain area is steep, the fluctuation is large, more and more tunnels and bridges appear, the wiring of the high-speed valley along the mountain area is a common method, and particularly, in the economic zone range of the Yangtze river, a plurality of high-speed lines are arranged along the river, and the wiring of partial sections is extremely difficult. For this situation, how to route the highway, how to implement it, how to rescue it during operation, and how to connect it with the local road are all problems that need to be considered in general, and if not treated properly, will cause significant loss. The line selection and the overall design of the expressway in the complex mountainous area are always the problems continuously explored by the engineering community.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, an instructive method for designing and constructing the reservoir-shore bridge-tunnel connection related technology in a complex mountain expressway is lacked, so that the design and construction process is lack of a targeted basis, great economic loss of design and construction is easily caused, and the life safety of constructors is threatened.
The invention is realized by the following technical scheme:
a design and construction method for a shore bridge tunnel-connected highway comprises the following steps:
s1: setting the plane wiring and the longitudinal section disconnection of the highway according to the survey data to generate a preliminary design scheme;
s2: taking an area with the curvature of an existing old road curve larger than a threshold value as a finishing area, and straightening the existing old road in the finishing area by cutting the curve;
s3: designing a construction access road according to the preliminary design scheme and the existing old road after bending and straightening;
s4: designing tunnels and bridges according to the preliminary design scheme, and designing operation safety guarantee measures;
s5: integrating the preliminary design scheme, the construction access design, the tunnel and bridge design and the operation safety guarantee measure design into a construction scheme of the reservoir-shore bridge-tunnel-connected highway;
s6: and constructing according to the construction scheme of the highway connected with the reservoir bridge and the tunnel.
In the prior art, in the design and construction of highway connected with a shore bridge and a tunnel, in the process of designing lines, bridge and tunnel design, construction roads and the like, organic integration and unification are lacked, disjointed situations can occur in all links, and meanwhile, complete schemes and specifications can not be referred to, so that the phenomenon that lines are frequently changed or construction schemes are changed in the design and construction stage can be caused, huge economic loss is caused, corresponding specifications for utilization and transformation of existing roads are lacked, all design and construction units can only be managed independently, extra scheme design is carried out on different existing roads, the design and construction cost is increased, and the design and construction cost is not favorable for large-scale popularization and application.
When the method is applied, in order to aim at the characteristics of the warehouse, the bridge and the tunnel connected with the highway, line selection and line determination are firstly required, and line selection is carried out by depending on survey data, wherein the survey data comprises but is not limited to hydrological data, geological data and other related data information. After the highway line is arranged in a horizontal and longitudinal mode, in order to facilitate construction, the invention carries out certain transformation on the existing old road, wherein the existing road with the curve curvature larger than the threshold value is extremely unfavorable for construction.
Further, step S1 includes the following sub-steps:
when the expressway plane wiring is set, the expressway plane wiring is far away from a collapse rockfall area according to the survey data, and the bias length of the tunnel body in the plane wiring is reduced according to the survey data.
When the method is applied, the construction difficulty of the bias tunnel is higher, so that the inventor reduces the bias length of the tunnel body in the design stage of plane wiring and reduces the later construction cost.
Further, step S1 includes the following sub-steps:
extracting valley flood data and debris flow data from the survey data;
acquiring furrow flood data according to the furrow flood discharge data and the debris flow data;
and setting a longitudinal surface broken line according to the valley flood data to enable the valley geological disasters to pass through from the lower part of the road surface.
When the method is applied, when the longitudinal section is designed, although little limitation is made on avoiding hydrogeological disasters in the prior art, the direct corresponding relation between survey data and longitudinal section wiring is lacked in practical design, and the method defines the corresponding relation, not only improves the line selection design efficiency, but also is beneficial to the intelligent development in the later stage of line selection design.
Further, step S2 includes the following sub-steps:
setting a bridge for the existing old road in the trimming area close to the side frame of the valley, and setting a newly-built bridge for the existing old road with the omega-shaped bend in the trimming area close to the side frame of the valley, wherein the newly-built bridge is communicated with two ends of the omega-shaped bend;
and filling and leveling the inner side of the bend of the omega-shaped bend to be used as a construction site.
When the method is applied, in order to further fully utilize the space, when the omega-shaped curve is processed, the omega-shaped curve is cut and straightened, and meanwhile, the space generated by the existing road after the cut and straightened is filled and arranged as a construction site, so that the method can be just used as a tunnel entrance site and a bridge construction site at the bridge-tunnel joint, and the spacious and stable construction site can reduce the construction risk to the greatest extent and improve the construction efficiency.
Further, step S3 includes the following sub-steps:
and (3) forming X-shaped access roads on the two side expansion lines of the newly-built bridge, wherein one end of each X-shaped access road is connected into the newly-built bridge, and the other end of each X-shaped access road is connected into the opening of the main line tunnel of the expressway.
When the invention is applied, in order to use the reconstructed existing road as the construction access, the invention adopts the X-shaped access to realize the connection between the reconstructed road and the tunnel portal, thereby being beneficial to the construction propulsion.
Further, step S4 includes the following sub-steps:
and a construction platform and a bridge abutment are arranged at the tunnel portal of the main line tunnel of the access expressway of the X-shaped access road.
Further, step S4 further includes the following sub-steps:
designing a highway main line bridge into a span;
and splicing the left and right webs of the highway main line bridge into a neat form, and splicing the three longitudinal bridge decks.
Further, step S4 further includes the following sub-steps:
arranging shading sheds on highway main line bridges between adjacent tunnel portals; the shading shed is of a hollow structure.
Further, step S6 includes the following sub-steps:
when the tunnel construction is carried out, assembling a secondary lining trolley in the tunnel;
when the bridge construction is carried out, the middle bridge special-shaped beam slab is made by cast-in-place construction.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the design and construction method for the highway connected with the shore bridge and the tunnel provided by the invention has the advantages that the terrain and geological conditions are combined when the route is arranged, the bridge and tunnel construction procedures, the later operation safety and the maintenance convenience are comprehensively considered, the terrain conditions are fully utilized, the adverse influence of adverse geology on the operation of the highway is avoided, the applicability is wide, and the large-scale popularization is facilitated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of the steps of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1, the construction method for designing a shore bridge tunnel-connected highway of the invention comprises the following steps:
s1: setting the plane wiring and the longitudinal section disconnection of the highway according to the survey data to generate a preliminary design scheme;
s2: taking an area with the curvature of an existing old road curve larger than a threshold value as a finishing area, and straightening the existing old road in the finishing area by cutting the curve;
s3: designing a construction access road according to the preliminary design scheme and the existing old road after bending and straightening;
s4: designing tunnels and bridges according to the preliminary design scheme, and designing operation safety guarantee measures;
s5: integrating the preliminary design scheme, the construction access design, the tunnel and bridge design and the operation safety guarantee measure design into a construction scheme of the reservoir-shore bridge-tunnel-connected highway;
s6: and constructing according to the construction scheme of the highway connected with the reservoir bridge and the tunnel.
In the prior art, in the design and construction of highway connected with a shore bridge and a tunnel, in the process of designing lines, bridge and tunnel design, construction roads and the like, organic integration and unification are lacked, disjointed situations can occur in all links, and meanwhile, complete schemes and specifications can not be referred to, so that the phenomenon that lines are frequently changed or construction schemes are changed in the design and construction stage can be caused, huge economic loss is caused, corresponding specifications for utilization and transformation of existing roads are lacked, all design and construction units can only be managed independently, extra scheme design is carried out on different existing roads, the design and construction cost is increased, and the design and construction cost is not favorable for large-scale popularization and application.
In this embodiment, in order to address the characteristics of the highway tunneled to the shore bridge, the line selection and routing operation needs to be performed first, and the line selection needs to be performed by means of survey data, where the survey data includes, but is not limited to, relevant data such as hydrological data and geological data. After the highway line is arranged in a horizontal and longitudinal mode, in order to facilitate construction, the invention carries out certain transformation on the existing old road, wherein the existing road with the curve curvature larger than the threshold value is extremely unfavorable for construction.
To further explain the operation of the present embodiment, step S1 includes the following sub-steps:
when the expressway plane wiring is set, the expressway plane wiring is far away from a collapse rockfall area according to the survey data, and the bias length of the tunnel body in the plane wiring is reduced according to the survey data.
When the embodiment is implemented, the construction difficulty of the bias tunnel is high, so that the bias length of the tunnel body is reduced at the design stage of plane wiring by the inventor, and the later construction cost is reduced.
To further explain the operation of the present embodiment, step S1 includes the following sub-steps:
extracting valley flood data and debris flow data from the survey data;
acquiring furrow flood data according to the furrow flood discharge data and the debris flow data;
and setting a longitudinal surface broken line according to the valley flood data to enable the valley geological disasters to pass through from the lower part of the road surface.
In the implementation of the embodiment, when the longitudinal section is designed, although the avoidance of hydrogeological disasters is limited a little in the prior art, the direct corresponding relation between survey data and longitudinal section wiring is lacked in the actual design, and the method defines the corresponding relation, not only improves the line selection design efficiency, but also is beneficial to the intelligent development in the later stage of line selection design.
To further explain the operation of the present embodiment, step S2 includes the following sub-steps:
setting a bridge for the existing old road in the trimming area close to the side frame of the valley, and setting a newly-built bridge for the existing old road with the omega-shaped bend in the trimming area close to the side frame of the valley, wherein the newly-built bridge is communicated with two ends of the omega-shaped bend;
and filling and leveling the inner side of the bend of the omega-shaped bend to be used as a construction site.
When this embodiment is implemented, for further make full use of space, when handling omega type bend, cut the bend to omega type bend and straighten, will cut the space that the existing road produced behind the bend straightens simultaneously and fill up to arrange as the construction site, just in time can regard as the tunnel of bridge and tunnel junction to advance hole place and bridge construction site, the construction site of spacious stability can reduce the construction risk in the at utmost, improves the efficiency of construction.
To further explain the operation of the present embodiment, step S3 includes the following sub-steps:
and (3) forming X-shaped access roads on the two side expansion lines of the newly-built bridge, wherein one end of each X-shaped access road is connected into the newly-built bridge, and the other end of each X-shaped access road is connected into the opening of the main line tunnel of the expressway.
In the implementation of the embodiment, in order to use the reconstructed existing road as the construction access, the invention adopts the X-shaped access to realize the connection between the reconstructed road and the tunnel portal, thereby being beneficial to construction propulsion.
To further explain the operation of the present embodiment, step S4 includes the following sub-steps:
and a construction platform and a bridge abutment are arranged at the tunnel portal of the main line tunnel of the access expressway of the X-shaped access road.
To further explain the working process of the present embodiment, step S4 further includes the following sub-steps:
designing a highway main line bridge into a span;
and splicing the left and right webs of the highway main line bridge into a neat form, and splicing the three longitudinal bridge decks.
To further explain the working process of the present embodiment, step S4 further includes the following sub-steps:
arranging shading sheds on highway main line bridges between adjacent tunnel portals; the shading shed is of a hollow structure.
To further explain the operation of the present embodiment, step S6 includes the following sub-steps:
when the tunnel construction is carried out, assembling a secondary lining trolley in the tunnel;
when the bridge construction is carried out, the middle bridge special-shaped beam slab is made by cast-in-place construction.
In order to further explain the working process of the embodiment, in a specific application, the embodiment includes the following steps:
(1) arranging a highway route to be level and vertical:
the plane part of the expressway is far away from a collapse rockfall area, and the problem of tunnel mountain bias voltage is considered during plane wiring, so that the bias voltage length of a tunnel body is reduced as much as possible. The profile arrangement follows the following principle: and calculating the flood quantity of the gully according to the flood discharge and the debris flow of the gully, and analyzing the unfavorable geology of the gully, such as the debris flow. Ensuring that floods, debris flows, etc. can pass under the pavement.
(2) And (4) protecting the old road:
after the highway route is determined to be flat and longitudinal, in order to ensure smooth implementation of the highway in the narrow valley, the existing omega-shaped old road needs to be bent and straightened, and the specific method is to arrange a bridge at a side frame close to the valley, so that the existing road is improved, meanwhile, the mountain omega-shaped land can be filled and leveled to be used as a construction site, and mutual interference between traffic protection and construction is avoided.
(3) Construction access:
because the existing road is lower than the newly-built high-speed elevation, X-shaped temporary roads are formed on the two sides of the newly-built bridge of the existing old road and are connected to the tunnel portal of the high-speed main line.
(4) Construction of a tunnel construction platform and a bridge abutment:
the construction platform is built by C20 concrete at the opening and the abutment is constructed, which can satisfy the requirement that the construction vehicle enters and exits the tunnel to carry out tunnel construction, because the construction site of the tunnel opening is limited, and the two lining trolleys are assembled in the tunnel.
(5) Bridge design and construction:
in order to ensure the safety of the bridge, the bridge is preferably provided with one span, if debris flow exists in the gully, the gully core can not erect the pile, and the debris flow is prevented from destroying the pier column of the bridge. In order to facilitate maintenance in the operation period, the left and right bridges are spliced into a whole and formed by splicing three longitudinal bridge decks. Because the width between the left and right widths is different, the special-shaped beam slab of the middle bridge is made by cast-in-place construction.
(6) Operation safety guarantee measure
The tunnel portal interval is shorter, for avoiding black hole and white hole effect, sets up the shading canopy on the bridge between the portal, for avoiding dirty air to get into next tunnel, the shading canopy adopts hollow out construction, can the shading can ventilate again, can also prevent hillside low frequency flying stone simultaneously to a certain extent, ensures highway operation safety.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A design and construction method for a shore bridge tunnel-connected highway is characterized by comprising the following steps:
s1: setting the plane wiring and the longitudinal section broken line of the highway according to the survey data to generate a preliminary design scheme;
s2: taking an area with the curvature of an existing old road curve larger than a threshold value as a finishing area, and straightening the existing old road in the finishing area by cutting the curve;
s3: designing a construction access road according to the preliminary design scheme and the bent and straight existing old road;
s4: designing tunnels and bridges according to the preliminary design scheme, and designing operation safety guarantee measures;
s5: integrating the preliminary design scheme, the construction access design, the tunnel and bridge design and the operation safety guarantee measure design into a construction scheme of the reservoir-shore bridge-tunnel-connected highway;
s6: constructing according to the construction scheme of the reservoir bridge-tunnel connected expressway;
step S1 includes the following substeps:
when the expressway plane wiring is set, the expressway plane wiring is far away from a collapse rockfall area according to the survey data, and the bias length of a tunnel body in the plane wiring is reduced according to the survey data;
extracting valley flood data and debris flow data from the survey data;
acquiring furrow flood data according to the furrow flood discharge data and the debris flow data;
and setting a longitudinal surface broken line according to the valley flood data to enable the valley geological disasters to pass through from the lower part of the road surface.
2. The design and construction method of the shore bridge tunnel-connected expressway according to claim 1, wherein the step S2 comprises the following substeps:
setting a bridge for the existing old road in the trimming area close to the side frame of the valley, and setting a newly-built bridge for the existing old road with the omega-shaped bend in the trimming area close to the side frame of the valley, wherein the newly-built bridge is communicated with two ends of the omega-shaped bend;
and filling and leveling the inner side of the bend of the omega-shaped bend to be used as a construction site.
3. The design and construction method of the shore bridge tunnel-connected expressway according to claim 2, wherein the step S3 comprises the following substeps:
and (3) forming X-shaped access roads on the two side expansion lines of the newly-built bridge, wherein one end of each X-shaped access road is connected into the newly-built bridge, and the other end of each X-shaped access road is connected into the opening of the main line tunnel of the expressway.
4. The design and construction method of the shore bridge tunnel-connected expressway according to claim 3, wherein the step S4 comprises the following substeps:
and a construction platform and a bridge abutment are arranged at the tunnel portal of the main line tunnel of the access expressway of the X-shaped access road.
5. The design and construction method of the shore bridge tunnel-connected expressway according to claim 1, wherein the step S4 further comprises the following substeps:
designing a highway main line bridge into a span;
and splicing the left and right webs of the highway main line bridge into a neat form, and splicing the three longitudinal bridge decks.
6. The design and construction method of the shore bridge tunnel-connected expressway according to claim 1, wherein the step S4 further comprises the following substeps:
arranging shading sheds on highway main line bridges between adjacent tunnel portals; the shading shed is of a hollow structure.
7. The design and construction method of the shore bridge tunnel-connected expressway according to claim 1, wherein the step S6 comprises the following substeps:
when the tunnel construction is carried out, assembling a secondary lining trolley in the tunnel;
when the bridge construction is carried out, the middle bridge special-shaped beam slab is made by cast-in-place construction.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2082848C1 (en) * | 1996-07-11 | 1997-06-27 | Виктор Михайлович Капин | Method of making difficult terrains passable with employment of air-cushion vehicles |
| CN101818470A (en) * | 2010-04-20 | 2010-09-01 | 长安大学 | Method for optimally setting expressway traffic safety facilities |
| CN105442505A (en) * | 2015-12-28 | 2016-03-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for rebuilding waste water diversion tunnel into highway tunnel in water resources and hydropower engineering |
| CN111979920A (en) * | 2020-08-07 | 2020-11-24 | 中国水利水电第十二工程局有限公司 | Method for transporting and erecting precast beam on steep slope of section connected with high mountain valley bridge and tunnel |
-
2020
- 2020-12-25 CN CN202011564606.XA patent/CN112663416B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2082848C1 (en) * | 1996-07-11 | 1997-06-27 | Виктор Михайлович Капин | Method of making difficult terrains passable with employment of air-cushion vehicles |
| CN101818470A (en) * | 2010-04-20 | 2010-09-01 | 长安大学 | Method for optimally setting expressway traffic safety facilities |
| CN105442505A (en) * | 2015-12-28 | 2016-03-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for rebuilding waste water diversion tunnel into highway tunnel in water resources and hydropower engineering |
| CN111979920A (en) * | 2020-08-07 | 2020-11-24 | 中国水利水电第十二工程局有限公司 | Method for transporting and erecting precast beam on steep slope of section connected with high mountain valley bridge and tunnel |
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