CN201099831Y - Double layer mirror-image entire interchange type overpass - Google Patents

Abstract

A double-layer mirror-image complete interchange type overpass comprises that an upper layer and a lower layer employ a symmetrical operation I transformation, an upper bridge and a lower bridge employ a step transformation (G+-), and transformation of the two layers employs a mirror transformation M. After three transformations, the upper layer comprises two straight driving lanes and four left turning lanes, and the lower layer comprises two straight lanes and four right turning lanes. The double-layer mirror-image complete interchange type overpass has the advantages that accommodation area is small, noise pollution to residents around is largely reduced, land resource and funds for construction are largely saved, and because vehicles pass by rapidly, energy and time are saved.

Description

Double-layer mirror image complete interchange viaduct

Technical field

The utility model is the bridge construction technical field, relates to intersection and bridge, is a kind of double-layer mirror image complete interchange viaduct.

Background technology

In the world wide, the city emerges, and high building towers, and motor vehicles increase exponentially, and traffic congestion, traffic congestion phenomenon frequently occur.

Each urban traffic thoroughfare in recent years, many overpass bridges have been built in the intersection.Also built many large-scale overpass bridges in suburbs, floor space is in 3 hectares to 50 hectares scopes, and great majority are three to four layers.Not only floor space is big, and cost is also very high.Minimum profile curvature radius does not wait to 50 meters by 15 meters, and maximum longitudinal grade is generally 3.5% to 6%, and design speed is in 20km/h to the 50km/h scope.

Build road in the urban center initial planning and mostly be about 60M, build complete interchange viaduct, need tear crossing retail shop open, dwelling house etc.Owing to be subjected to the restriction of road surrounding enviroment, city overpass bridge great majority are incomplete intercommunication formula at present, still can not cancel traffic lights.So in the vehicle peak period, in time, goes slowly and blocks up phenomenon.

The utility model content

The purpose of this utility model is that development is a kind of on original four-legs intersection road junction, as long as have a lot of social connections more than 20 meters, be preferably 60 meters to 80 meters wide, save a large amount of soil and fund not tearing open under the situation of retail shop and dwelling house on every side, can build two layers of mirror image complete interchange viaduct.

The utility model double-layer mirror image complete interchange viaduct comprises the two-layer up and down symmetry behaviour that used

Conversion, up and down bridge used step conversion (

), two-layer transformation applications mirror transformation

After the cubic transformation, the upper strata is two craspedodrome roads, turns left for four, and lower floor is two craspedodrome roads, turns right for four; Perhaps descend two craspedodrome roads of arrangement layer, turn left for four, then go up two craspedodrome roads of arrangement layer, turn right for four.

Bilevel symmetry, step conversion, mirror transformation should meet following mathematical formulae:

One, symmetry operation

$\hat{I}\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)=\left(\begin{array}{ccc}-1& 0& 0\\ 0& -1& 0\\ 0& 0& -1\end{array}\right)\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)$

Two, step conversion

Three, mirror transformation

$\hat{M}\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)=\left(\begin{array}{ccc}1& 0& 0\\ 0& -1& 0\\ 0& 0& 1\end{array}\right)\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)$

Four-legs intersection crossing traffic route, with east (E), west (W), south (S), northern (N) expression, the route of turning right is kept straight on and is used (Z) representative with (R) representative, the usefulness of turning left (L) expression, tune is represented with (T).

Being 20 meters to 30 meters in the minimum of having a lot of social connections changes in the four-legs intersection road of 60 meters to 80 meters of maximums, and finish mirror transformation under the bridge on the bridge within two-layer, floor space is in 12 mu, minimum profile curvature radius is between 25 meters to 50 meters, longitudinal grade is 3.5% to 6%, and the speed of a motor vehicle is 20km/h to 50km/h.

Implement " public traffic in priority " scheme, with bus routes be arranged in turn right and keep straight between, perhaps between turning left and keeping straight on.The present invention's " people-oriented " fuses walkway and hanging garden, and hollow is built into funnel-shaped, and the control noise prevents to pollute.If do not build hanging garden, the walkway can be built equally spaced position, two crossroads in, can build underground passage, also can build pedestrian overcrossing.

The advantage of the utility model double-layer mirror image complete interchange viaduct is as follows: (1) floor space is little, in original intersection, only accounts in 12 mu of ground.(2) to have a lot of social connections with 60 meters be example to minimum profile curvature radius, is 50 meters.(3) maximum longitudinal grade is designed to 6%, and this is that (4) design speed that allows in the scope of new material new technology is 50km/h.

This is the applied mathematics design, and once great breakthrough invention greatly reduces the large-scale grade separation floor space in suburbs, be compressed in 1 hectare (15 mu) from 3 hectares to 50 hectares, for the descendants benefits,, significantly reduced noise pollution to surrounding resident owing to pass through fast.

In the design of and beautiful design art up, can set up hanging garden, beautify the environment limit noise on the upper strata in large-scale grade separation hommization.Allow fleet pass through fast, allow the highway of motherland's the earth also as the double track of railway at the moving environment of grace, unblocked.

Only the soil this, will economize on the use of funds widely, the every mu of market price in general city is 6,000,000 RMB, suburbs are 1,000,000-3,000,000 RMB.The fund of over ten billion Yuan will have been saved in a metropolis, and stay development space for the descendants.Pass through fast, energy conservation and time also are limitless.

Use at the access bridge of striding the rivers bridge and striding railway bridge, the cloverleaf formula of the sort of formula of enclosing the land or rhombus design, just needn't, be reduced to the straight way formula.Two sides are enclosed the land big more, and it is just big more to disturb residents.

On the scheme of considering " people-oriented " and " public traffic in priority ", the sidewalk is built on the hanging garden, also can design between two crossroads, also can do underground passage, guarantees the current of pedestrian and non motorized vehicle." public traffic in priority " can be with the bus routes design between turning right and keeping straight on, behind mirror transformation, can design and turn left between route and the craspedodrome route, can guarantee the unimpeded of public transport,, can dredge stifled fast by dedicated bus lanes just in case have vehicle to have an accident on the road or rear crash event etc.

Description of drawings

Fig. 1 is the first floor plan view of two layers of mirror image complete interchange viaduct.

Fig. 2 is the second layer plan view of two layers of mirror image complete interchange viaduct.

The specific embodiment

Embodiment one:

The full interchange viaduct of double-layer mirror image is built at 60 meters wide four-legs intersection road junctions, and first floor is arranged the East, West, South, North four direction circuit E that turns right _R, W _R, S _R, N _R, arranging two direct lanes is the north-south, i.e. S, N.(under the craspedodrome Z footnote slightly) second layer is arranged four corners of the world four direction circuit E that turns left _L, W _L, S _L, NL, two direct lanes are East and West direction, E, W.

Floor space (exchange area, center) 60M * 60M=3600m ²(5.4 mu).Minimum profile curvature radius is 50 meters, maximum longitudinal grade 6%, and design speed is 50km/h.

Can arrange special-purpose bus zone, between turning right and keeping straight on, also can place turn left and keep straight between, R, Z, the L track is two-way traffic, per pass 4M-3.7M is wide.Be convenient to dredge stifled.

Embodiment two:

The four-legs intersection road junction grade separation that is connected with ring road.Ring road is that one deck, two craspedodromes of two arrangement layers and four tunnel are turned left.Charge station or other monitor control mechanisms should be arranged in the crossing of going down town.

Floor space is generally 80M * 80M=6400m ²(10 mu) minimum profile curvature radius is 60 meters, and longitudinal grade 3.5-6%, design speed are 60km/h.

Embodiment three:

Cross the access bridge of river bridge, the two sides of bridge directly link to each other with the four-legs intersection road junction, will cloverleaf and the enclose the land following bridge mode of formula of rhombus, and bridge under the straight passes through fast, reduces noise and holds together the people.

Claims (4)

1, a kind of double-layer mirror image complete interchange viaduct is characterized in that: two-layerly up and down used the symmetry operation

Conversion, up and down bridge used step conversion (

), two-layer transformation applications mirror transformation

After the cubic transformation, the upper strata is two craspedodrome roads, turns left for four, and lower floor is two craspedodrome roads, turns right for four.

2, double-layer mirror image complete interchange viaduct according to claim 1 is characterized in that: two craspedodrome roads of following arrangement layer, turn left for four, and then go up two craspedodrome roads of arrangement layer, turn right for four.

3, double-layer mirror image complete interchange viaduct according to claim 1 is characterized in that: bilevel symmetry, step conversion, mirror transformation should meet following mathematical formulae:

1. symmetry operation

$\hat{I}\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)=\left(\begin{array}{ccc}-1& 0& 0\\ 0& -1& 0\\ 0& 0& -1\end{array}\right)\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)$

2. step conversion

3. mirror transformation

$\hat{M}\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)=\left(\begin{array}{ccc}1& 0& 0\\ 0& -1& 0\\ 0& 0& 1\end{array}\right)\left(\begin{array}{c}R\\ Z\\ L\end{array}\right)$

4, double-layer mirror image complete interchange viaduct according to claim 1, it is characterized in that: be 20 meters to 30 meters in the minimum of having a lot of social connections and in the four-legs intersection road of 60 meters to 80 meters of maximums, change, and finish mirror transformation under the bridge on the bridge within two-layer, floor space is in 12 mu, minimum profile curvature radius is between 25 meters to 50 meters, longitudinal grade is 3.5% to 6%, and the speed of a motor vehicle is 20km/h to 50km/h.

Images