CN103711502B - Improve the construction method of highway tunnel useful area utilization rate - Google Patents
Improve the construction method of highway tunnel useful area utilization rate Download PDFInfo
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- CN103711502B CN103711502B CN201410007536.6A CN201410007536A CN103711502B CN 103711502 B CN103711502 B CN 103711502B CN 201410007536 A CN201410007536 A CN 201410007536A CN 103711502 B CN103711502 B CN 103711502B
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- superelevation
- internal periphery
- periphery section
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Abstract
The invention discloses a kind of construction method improving highway tunnel useful area utilization rate.1) a tunnel standard Internal periphery section conventionally, is drafted; 2) track clearance of superelevation road surface and corresponding superelevation is designed; 3) with the drainage groove of pavement edge and intersection, road surface for axis of rotation, superelevation road surface and tunnel standard Internal periphery section will not be set to be all that the center of circle rotates construction, until do not establish superelevation road surface to overlap with superelevation road surface with axis of rotation; 4), after construction forms tunnel standard Internal periphery section, allow the line mid point of the track clearance least favorable 2 of corresponding superelevation be positioned on tunnel center line, obtain the tunnel Internal periphery section of corresponding superelevation; 5) repeat above-mentioned steps, obtain the tunnel Internal periphery section of the different superelevation of section completely.The present invention adopts rotation and mobile tunnel standard Internal periphery section, making full use of tunnel useful area, without the need to increasing Wide Band Oxygen Sensors because superelevation is established on road surface, also without the need to formulating different masterplates during construction, reducing difficulty of construction and cost.
Description
Technical field
The present invention relates to tunnel cross-section construction method, refer to a kind of construction method improving highway tunnel useful area utilization rate particularly.
Background technology
In recent years, along with road event build flourish, the sectional form in tunnel is more and more diversified.In Road Design Project, due to the impact by landform along the line or construction of structures, increasing tunnel can be built and be provided with on certain superelevated curve section.When being provided with superelevation in tunnel, will there is corresponding change in effective scope of application of tunnel cross-section, namely to the requirement of tunnel Internal periphery, corresponding change also occurs along with the change of superelevation.
In design in the past, in order to reduce construction cost, reducing the expense of formwork jumbo, when drafting tunnel Internal periphery, usually according to the different gauges of different superelevation, drafting the tunnel Internal periphery section of Internal periphery as this project that can meet all unfavorable gauges.The tunnel cross-section drafted in this way is larger than standard Internal periphery section, adds civil works cost to a certain extent.
Therefore, be provided with on certain superelevated curve section, be necessary to find the utilization rate that a kind of construction method improves tunnel useful area, when not strengthening tunnel standard Internal periphery section, can meet in tunnel and establish superelevation, make tunnel cross-section design optimization, can construction investment be saved simultaneously.
Summary of the invention
Object of the present invention is exactly to overcome the deficiency existing for existing construction method, provides a kind of construction method improving highway tunnel useful area utilization rate, can make full use of tunnel useful area, reduces engineering construction difficulty and cost.
For achieving the above object, the present invention improves the construction method of highway tunnel useful area utilization rate, comprises the following steps:
1) construct one according to Project Technical standard and be applicable to the tunnel standard Internal periphery section of straightway without superelevation road surface and tunnel Modular building gauge;
2) according to superelevated curve section, the track clearance of design superelevation road surface and corresponding superelevation;
3) with the highway route design absolute altitude longitudinal axis at road inside edge and drainage groove intersection place for axis of rotation, straightway is all rotated, until straightway overlaps with superelevation road surface without superelevation road surface around axis of rotation without superelevation road surface and tunnel standard Internal periphery section; Find out invading between the track clearance of corresponding superelevation and tunnel standard Internal periphery section and limit position;
4) postrotational tunnel standard Internal periphery section is moved horizontally toward invading limit direction, position, make the perpendicular bisector of track clearance least favorable 2 lines of corresponding superelevation and tunnel center line intersect at the center of circle of standard Internal periphery section top, tunnel circular arc, thus obtain the tunnel Internal periphery section of corresponding superelevation;
5) according to each section, all fronts superelevation facilities, according to above-mentioned steps construction, the tunnel Internal periphery section of the different superelevation completely set by each section can be obtained.
Step 4) of the present invention is when constructing the tunnel Internal periphery section of corresponding superelevation, postrotational tunnel standard Internal periphery section is moved horizontally toward invading limit direction, position, connect the worst control point A of track clearance of corresponding superelevation, B, find an A, the mid point C of the line of B, cross the perpendicular bisector that C point does line, horizon is done at the D place, the center of circle of tunnel standard Internal periphery section upper arcuate, horizon and perpendicular bisector intersect at O point, construction is continued on the basis of tunnel standard Internal periphery section, until D point overlaps with O point, thus be met the tunnel Internal periphery section of the corresponding superelevation of the track clearance being provided with superelevation road surface and corresponding superelevation.
Beneficial effect of the present invention is: first according to the tunnel standard Internal periphery section that straightway standard gauge is drafted, the track clearance of bamboo product superelevation, rotated by certain rule or mobile tunnel standard Internal periphery section, tunnel useful area can be made full use of, and the requirement of establishing freeboard section clearance of tunnel to Internal periphery headroom can be met.The present invention adopts rotation and mobile tunnel standard Internal periphery section, when making to establish various superelevation in tunnel, tunnel effective range does not all change, thus improve the utilization rate of tunnel useful area, without the need to increasing Wide Band Oxygen Sensors because superelevation is established on road surface and and the requirement of specification can being met.Thus reach an all tunnel of project and adopt a section, also without the need to formulating different masterplates during construction, only use a kind of formwork jumbo.Present invention saves construction costs, simplify design, facilitate construction, reduce engineering construction difficulty and construction cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of tunnel standard Internal periphery section.
Fig. 2 is the structural representation of the track clearance being provided with superelevation road surface and corresponding superelevation in tunnel.
Fig. 3 is the structural representation of constructing in tunnel standard Internal periphery section.
Fig. 4 is the positional structure schematic diagram at the worst control point when constructing the tunnel Internal periphery section of corresponding superelevation.
Fig. 5 is location status structural representation when constructing the tunnel Internal periphery section of corresponding superelevation.
Fig. 6 is the structural representation of the tunnel Internal periphery section of corresponding superelevation.
Fig. 7 is the comparison structure schematic diagram of the tunnel Internal periphery section of two kinds of method constructions.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment
1) as shown in Figure 1, according to Project Technical standard envisages and an economical rationality of constructing, be applicable to the tunnel standard Internal periphery section 6 of straightway without superelevation road surface 4 and tunnel Modular building gauge 5;
2) as shown in Figure 2, according to superelevated curve section, the track clearance 8 of design superelevation road surface 7 and corresponding superelevation;
3) as shown in Figure 3, with the highway route design absolute altitude longitudinal axis at road inside edge and drainage groove intersection place for axis of rotation 3, axis of rotation 3 does not establish superelevation road surface 4 parallel with superelevation road surface 7 with the straightway in tunnel, straightway is all rotated around axis of rotation 3, until straightway overlaps with superelevation road surface 7 without superelevation road surface 4 without superelevation road surface 4 and tunnel standard Internal periphery section 6;
4) as shown in Figure 4, tunnel standard Internal periphery section 6 is formed according to step 1) construction, downward horizontal moves master die bed car makes tunnel standard Internal periphery section 6 be placed in the middle of least favorable gauge, find out between the track clearance 8 of corresponding superelevation and tunnel standard Internal periphery section 6 invade and limit position, connect track clearance 8 worst control point A, B of corresponding superelevation, find the mid point C of the line 11 of some A, B, cross the perpendicular bisector 12 that C point does line 11;
5) as shown in Figure 5, do horizon 13 at the D place, the center of circle of tunnel standard Internal periphery section 6 upper arcuate, horizon 13 and perpendicular bisector 2 intersect at O point;
6) as shown in Figure 6, cut out above-mentioned invading and limit position, move horizontally master die bed car to the right, the D point of tunnel standard Internal periphery section 6 is overlapped with O point, the mid point C of line 11 is positioned on perpendicular bisector 12, thus is met the tunnel Internal periphery section 9 of the corresponding superelevation of the track clearance 8 being provided with superelevation road surface 7 and corresponding superelevation.
Runway center line 1 is constant all the time with the distance of axis of rotation 3, and the perpendicular bisector 12 crossing center of circle O is the tunnel center line 2 of the tunnel Internal periphery section 9 being provided with corresponding superelevation.The cross-sectional area of tunnel Internal periphery section 9 is equal with tunnel standard Internal periphery section 6.
According to each section, all fronts superelevation facilities, according to above-mentioned steps construction, the tunnel Internal periphery section of the different superelevation completely set by each section can be obtained.
During construction, formulate a set of master die bed car, different location completely, according to the road superelevation set by each section, according to corresponding design parameters, the relative position relation that adjustment masterplate chassis is installed.
Tunnel Internal periphery profile shown in Fig. 7 is the Internal periphery section 10 when establishing superelevation in the tunnel traditionally drafted.Can be found out by Fig. 7, obviously be greater than tunnel of the present invention standard Internal periphery section 6 according to the section 10 of previous methods design.And due to two kinds of profiled outlines completely different, so establish superelevation and do not establish the masterplate chassis of superelevation also different.The construction costs of the tunnel cross-section that former method obtains and construction cost all comparatively this method are high.
Claims (2)
1. improve a construction method for highway tunnel useful area utilization rate, it is characterized in that, comprise the following steps:
1) construct one according to Project Technical standard and be applicable to tunnel standard Internal periphery section (6) of straightway without superelevation road surface (4) and tunnel Modular building gauge (5);
2) according to superelevated curve section, the track clearance (8) of design superelevation road surface (7) and corresponding superelevation;
3) with the highway route design absolute altitude longitudinal axis at road inside edge and drainage groove intersection place for axis of rotation (3), straightway is all rotated, until straightway overlaps with superelevation road surface (7) without superelevation road surface (4) around axis of rotation (3) without superelevation road surface (4) and tunnel standard Internal periphery section (6); Find out invading between the track clearance (8) of corresponding superelevation and tunnel standard Internal periphery section (6) and limit position;
4) postrotational tunnel standard Internal periphery section (6) is moved horizontally toward invading limit direction, position, make the perpendicular bisector (12) of the track clearance of corresponding superelevation (8) least favorable 2 lines and tunnel center line (2) intersect at the center of circle of standard Internal periphery section (6) top, tunnel circular arc, thus obtain tunnel Internal periphery section (9) of corresponding superelevation;
5) according to each section, all fronts superelevation facilities, according to above-mentioned steps construction, the tunnel Internal periphery section of the different superelevation completely set by each section can be obtained.
2. the construction method of raising highway tunnel useful area utilization rate according to claim 1, it is characterized in that: step 4) when constructing tunnel Internal periphery section (9) of corresponding superelevation, postrotational tunnel standard Internal periphery section (6) is moved horizontally toward invading limit direction, position, connect the worst control point A of track clearance (8) of corresponding superelevation, B, find an A, the mid point C of the line (11) of B, cross the perpendicular bisector (12) that C point does line (11), horizon (13) is done at the D place, the center of circle of tunnel standard Internal periphery section (6) upper arcuate, horizon (13) and perpendicular bisector (12) intersect at O point, the basis in tunnel standard Internal periphery section (6) is continued construction, until D point overlaps with O point, thus be met tunnel Internal periphery section (9) of the corresponding superelevation of the track clearance (8) being provided with superelevation road surface (7) and corresponding superelevation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410007536.6A CN103711502B (en) | 2014-01-08 | 2014-01-08 | Improve the construction method of highway tunnel useful area utilization rate |
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| CN201410007536.6A CN103711502B (en) | 2014-01-08 | 2014-01-08 | Improve the construction method of highway tunnel useful area utilization rate |
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| CN103711502B true CN103711502B (en) | 2015-08-12 |
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| CN104989419B (en) * | 2015-06-05 | 2018-08-31 | 广东省交通规划设计研究院股份有限公司 | A kind of Tunnel invades the processing method and its construction corollary equipment of limit |
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| EP1033472A1 (en) * | 1999-03-04 | 2000-09-06 | Hydrostress Ag | Method of and device for modifying the clearance gauge of a tunnel |
| CN101082489A (en) * | 2007-07-11 | 2007-12-05 | 武汉立得空间信息技术发展有限公司 | railroad clearance high speed dynamic detecting device |
| CN101509382B (en) * | 2009-02-18 | 2011-05-04 | 朱海涛 | Tunnel surveying method |
| CN102161342B (en) * | 2010-12-08 | 2013-05-15 | 中铁四局集团电气化工程有限公司 | Device for detecting equipment limit of subway tunnel |
| CN102152802B (en) * | 2010-12-21 | 2013-03-20 | 郑州峰华电子有限责任公司 | System and method for measuring railway construction clearances |
| CN102345462B (en) * | 2011-03-15 | 2013-09-18 | 湖南省交通规划勘察设计院 | Method for determining stopping sight distance in small-radius spiral tunnel on expressway and method for widening tunnel section |
| CN203130093U (en) * | 2013-04-01 | 2013-08-14 | 谢笛 | 80kmh tunnel widening limitation structure form |
| CN203347802U (en) * | 2013-07-09 | 2013-12-18 | 中铁第四勘察设计院集团有限公司 | Single-hole double-track mining tunnel based on metro B-type automobile limit optimization design |
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