阅读说明：本技术 一种隧道出口防眩视线诱导系统 (Tunnel export anti-dazzle sight induction system ) 是由 杜志刚 许富强 张抒扬 韩磊 陈灿 于 2021-08-12 设计创作，主要内容包括：本发明涉及隧道出口的交通安全技术领域,特指一种隧道出口防眩视线诱导系统,该系统由面状的膜壳、线状的悬索、环状的门架,及线状、环状、点状的自发光视线诱导设施组成,线状的悬索承担系统自重,横截面小、显著减小路面纵横向的斑马效应,走向延续腰带线、隧道灯具的视觉引导,发挥缓解路面眩光、方向诱导、空间过渡作用,腰带线以下的膜壳透光率低、反射率由高渐变到低,发挥缓解侧向眩光作用,腰带线以上的膜壳反射率低、透光率由低渐变至高,发挥缓解顶部眩光及亮度过渡作用,门架与轮廓带共同发挥车距诱导作用,自发光视线诱导设施附着于悬索、门架、隧道实体,发挥全天候速度诱导、方向诱导作用。(The invention relates to the technical field of traffic safety of tunnel exits, in particular to an anti-dazzle sight line induction system for a tunnel exit, which consists of a planar membrane shell, a linear suspension cable, an annular portal frame and a linear, annular and punctiform self-luminous sight line induction facility, wherein the linear suspension cable bears the dead weight of the system, has a small cross section, obviously reduces the longitudinal and transverse zebra effect of a road surface, extends the visual guidance of a waistband line and a tunnel lamp, plays the roles of relieving road surface glare, inducing directions and performing space transition, the membrane shell below the waistband line has low light transmittance and gradually changes from high to low reflectance, plays the role of relieving lateral glare, the membrane shell above the waistband line has low reflectance and gradually changes from low to high transmittance, plays the roles of relieving top glare and reducing brightness transition, the portal frame and a contour band play a role of inducing vehicle distance together, and the self-luminous sight line induction facility is attached to the suspension cable, the portal frame, The tunnel entity plays the roles of all-weather speed induction and direction induction.)

1. The utility model provides an anti-dazzle sight of tunnel exit induction system which characterized in that: the tunnel self-luminous visual line protection device comprises a light shielding shed arranged at a tunnel outlet, wherein the light shielding shed comprises a planar membrane shell I (1), a planar membrane shell II (2), a linear suspension cable (3), an annular portal frame (6), a linear self-luminous visual line induction facility (8), an annular self-luminous visual line induction facility (9), a punctiform self-luminous visual line induction facility (10) and a tunnel door (11), the tunnel door (11) is arranged at one end of the light shielding shed and corresponds to the tunnel outlet, the annular portal frame (6) is arranged at the other end of the light shielding shed, a tunnel waistband line visual extension line (14) corresponding to a tunnel waistband line (4) and a tunnel lamp visual extension line (15) corresponding to a tunnel lamp (5) are arranged in the light shielding shed, the planar membrane shell I (1) is arranged on the outer side of the linear suspension cable (3) and is positioned below the tunnel waistband line visual extension line (14), the planar second membrane shell (2) is arranged on the outer side of the linear suspension cable (3) and above a vision extension line (14) of a tunnel waistband line, the linear self-luminous sight line induction facility (8) is attached to the inner side of the linear suspension cable (3), the annular self-luminous sight line induction facility (9) is attached to the annular portal (6), the punctiform self-luminous sight line induction facility (10) is attached to the side wall and the road surface of the tunnel, and annular contour belts (7) are arranged on the annular portal (6) and the tunnel portal (11).

2. The anti-glare sight inducing system for tunnel exits according to claim 1, wherein: the vision extension line (14) of tunnel waistband line adopts blue arrow at the bottom of yellow, width 0.30 ~ 0.90m, the vision extension line (14) of tunnel waistband line rely on the natural light shining, play a role daytime, and the luminousness and the reflectance ratio of its yellow background are 2 ~ 5 times of planar membrane shell (1), and the luminousness of its blue arrow is 2 ~ 5 times of yellow background, and the interval of blue arrow satisfies 2.5 ~ 3.5Hz high frequency of occurrence to strengthen the visuality of waistband line, the blue arrow of the vision extension line (14) of tunnel waistband line relies on solar energy power supply night to shine.

3. The anti-glare sight inducing system for tunnel exits according to claim 1, wherein: the light transmittance of the first planar membrane shell (1) is kept low and is less than or equal to 10% so as to reduce lateral penetrating light, and the reflectivity of the first planar membrane shell (1) gradually changes from the approximate value of the reflectivity of the side wall of the tunnel to a low value and is less than or equal to 10% from the outer side of the hole so as to reduce lateral reflecting light.

4. The anti-glare sight inducing system for tunnel exits according to claim 1, wherein: the reflectivity of the second planar membrane shell (2) is kept low and is less than or equal to 10% so as to reduce the reflected light at the top, and the light transmittance of the second planar membrane shell (2) gradually changes from light-tight to high 50-75% from light-tight to outside.

5. The anti-glare sight inducing system for tunnel exits according to claim 1, wherein: the linear suspension cable (3) is longitudinally connected with a tunnel portal (11), an annular portal (6) and a main anchoring pier (12) at the outer side of the annular portal (6), and is horizontally arranged between the tunnel door (11) and the portal frame (6) along the longitudinal direction, the circumferential distance is 1.0-5.0 m, the color of the linear suspension cable (3) is similar to that of the planar membrane shell II (2), the linear suspension cable (3) is composed of a plurality of steel strand bundles, and is subjected to antiseptic treatment, a plurality of linear suspension cables (3) with the same section are connected through annular steel stranded wires (13), the annular steel strand wires (13) are fixed on secondary anchoring piers (19) on the ground at two sides of the shading shed, the distance between the annular steel strands (13) is 2-5 times of the distance between the linear suspension cables (3), and the requirement of 0.5-1.0 Hz flash frequency is met, and a stable space grid structure with thin longitudinal and thin transverse directions is formed together.

6. The anti-glare sight inducing system for tunnel exits according to claim 5, wherein: the linear suspension cables (3) are arranged in a longitudinal inclined mode within the range of the annular door frame (6) and the main anchoring pier (12), the linear suspension cables (3) are scattered and unfolded in a spatial inclined mode, a semi-closed space in the hole and an open space outside the hole are divided, and spatial transition is relieved.

7. The anti-glare sight inducing system for tunnel exits according to claim 5, wherein: the linear suspension cable (3) is longitudinally connected with the tunnel door (11), the annular door frame (6) and the main anchoring pier (12) on the outer side of the annular door frame (6) by taking the position of the tunnel lamp (5) as a starting point, then a guardrail (18) is connected to form a visual extension line (15) of the tunnel lamp, and a linear self-luminous sight line induction facility (8) which utilizes solar energy to emit light is attached to the lower edge of the visual extension line (15) of the tunnel lamp.

8. The anti-glare sight inducing system for tunnel exits according to claim 5, wherein: the front inclination angle of the annular gantry (6) is 10-30 degrees, the linear shape of the linear suspension cable (3) is balanced together with the main anchoring pier (12), an annular self-luminous sight line induction facility (9) utilizing solar energy to emit light is attached to the lower edge of the annular gantry (6), the distance between the annular self-luminous sight line induction facility (9) utilizing solar energy to emit light and the distance between the annular self-luminous sight line induction facility and the annular self-luminous sight line induction facility in the hole and the annular self-luminous sight line induction facility (9) utilizing solar energy to emit light and arranged at the hole opening (11) are equal, the safe following distance is met, and the medium flash frequency is met.

9. The anti-glare sight inducing system for tunnel exits according to claim 1, wherein: the point-shaped self-luminous sight line induction facility (10) comprises a self-luminous raised road sign (16) attached to the road surface, a self-luminous outline marker (17) attached to the side surface of the access road, and a self-luminous guide arrow (20) attached to the position of the belt line (4), and the intervals between the self-luminous raised road sign (16), the self-luminous outline sign (17) and the self-luminous guide arrow (20) are equal, and are arranged on the same cross section with a space satisfying a high flash frequency, the luminous color of the self-luminous delineator (17) is different from the color of the self-luminous raised road marking (16), the self-luminous guide arrows (20) have a luminous color different from that of the self-luminous raised road markings (16), the self-luminous guide arrow (20) and the self-luminous raised road sign (16) can constantly emit light and can also emit light in a flashing mode according to a uniform frequency, and the frequency is 0.5-1.0 Hz.

Technical Field

The invention relates to the technical field of traffic safety at tunnel exits, in particular to an anti-dazzle sight line induction system at a tunnel exit.

Background

In the process of exiting the tunnel in the daytime, the illumination intensity changes violently, the side wall and the top of the tunnel are obviously glare, visual discomfort of a driver is caused, the visual recognition function is reduced, the phenomenon is a white hole effect, the white hole effect is a serious glare phenomenon, bad driving behaviors are easily induced, and traffic accidents are caused.

The white hole effect caused by glare is relieved, the illumination level of the exit section of the tunnel is generally improved at home and abroad, and light reduction facilities outside the tunnel are generally arranged. Increasing the exit segment illumination level causes increased illumination costs and fails to effectively mitigate glare. The traditional dimming facilities at home and abroad often cause remarkable zebra effect and stroboscopic effect while solving the problem of illumination transition, and the effect of relieving glare is rather low.

The light reduction facilities at the exit of the domestic tunnel usually adopt a beam-upright post-longitudinal beam-film structure or an arch ring-longitudinal beam-film structure, and the shadow of the light reduction facilities on the road surface and the side wall is large and mottled and separated from the road under natural light, so that the light reduction facilities are almost inevitable. Has great negative effect on the psychology and physiology of the driver. The suspension cable structure and the membrane shell structure can overcome the disadvantages.

The light reduction facility at the exit of the domestic tunnel fails to pay attention to the influence of the reflectivity of the side wall area of the tunnel below the belt line on the glare. When the reflectivity of the tunnel sidewall area below the belt line is maintained high, the lateral glare phenomenon is increased near the opening.

In the light reduction facility at the exit of the domestic tunnel, the influence of the light transmittance and the absorption rate of the top area of the light reduction facility on the glare together cannot be considered. The light absorption on the outer side of the material can also cause the inner side to shine, and the combination of lower light transmittance and higher light absorption rate can still cause certain glare phenomenon.

The light reduction facilities at the exit of the domestic tunnel pay more attention to the effects of light reduction and dazzle prevention in daytime and white hole, and ignore the effect of black hole at night. The sunlight shielding effect is not considered to be beneficial, and the sunlight is not changed into unfavorable, so that the solar energy is converted into the electric energy to be stored, and the electric energy is used for induced illumination of the exit approach of the night tunnel. The approach illumination at the exit of the tunnel at night is beneficial to relieving the black hole effect of the exit of the tunnel at night.

The light reduction facility at the exit of the domestic tunnel lacks the consideration on the visual psychology and physiology of a driver in the aspect of space transition, directly changes a semi-closed environment from a ring shape into an open environment of a standard road section, and lacks a space transition road section between the semi-closed environment and the open environment.

The component members of the domestic tunnel exit dimming facility have single functions, the functions of the facility such as bearing, dimming, anti-dazzle and induction cannot be effectively integrated, and the visual induction information such as high frequency, medium frequency, high position, medium position and low position cannot be better combed so as to effectively control the speed induction, the distance induction and the direction induction of the tunnel exit.

Generally, due to the limitations of the existing anti-glare and light-reduction facilities such as severe glare phenomenon, zebra effect, and stroboscopic effect at the tunnel exit, and the severe illuminance and space transition at the exit, the tunnel exit has many defects in traffic safety and comfort, and a high-efficiency anti-glare and light-reduction induction facility applied to the tunnel exit is urgently needed.

Disclosure of Invention

Aiming at the problems, the invention provides an anti-dazzle sight line induction system for a tunnel exit, which consists of a planar film shell, a linear suspension cable, an annular portal frame and a linear, annular and punctiform self-luminous sight line induction facility, wherein the suspension cable bears the dead weight of the system, has a small cross section, obviously reduces the zebra effect in the longitudinal and transverse directions of a road surface, extends the visual guidance of a belt line and a tunnel lamp in a trend direction continuation way, plays the roles of relieving road glare, inducing direction and space transition, has low light transmittance and gradually-changed low reflectance of the film shell below the belt line, plays the role of relieving lateral glare, has low reflectance of the film shell above the belt line and gradually-changed high transmittance, plays the roles of relieving top glare and brightness transition, the portal frame and a profile belt play a role of inducing vehicle distance together, and the self-luminous sight line induction facility is attached to the suspension cable, the portal frame and a tunnel entity to play a role of inducing all-weather speed, The direction induction function jointly forms a comprehensive system with multiple anti-dazzle, shading transition, direction induction, vehicle distance induction and speed induction at the tunnel exit, and the passing safety and the comfort at the tunnel exit are improved.

In order to achieve the purpose, the technical scheme applied by the invention is as follows:

an anti-dazzle sight inducing system for tunnel exit comprises a shading shed arranged at the tunnel exit, wherein the shading shed comprises a planar membrane shell I, a planar membrane shell II, a linear suspension cable, an annular gantry, a linear self-luminous sight inducing facility, an annular self-luminous sight inducing facility, a dot self-luminous sight inducing facility and a hole door, the hole door is arranged at one end of the shading shed and corresponds to the tunnel exit, the annular gantry is arranged at the other end of the shading shed, a vision extension line of a tunnel waistband line corresponding to the tunnel waistband line and a vision extension line of a tunnel lamp corresponding to the tunnel lamp are arranged in the shading shed, the planar membrane shell I is arranged at the outer side of the linear suspension cable and is positioned below the vision extension line of the tunnel waistband line, the planar membrane shell II is arranged at the outer side of the linear suspension cable and is positioned above the vision extension line of the tunnel waistband line, and the linear self-luminous sight inducing facility is attached to the inner side of the linear suspension cable, the annular self-luminous sight line induction facilities are internally attached to the annular door frames, the point self-luminous sight line induction facilities are attached to the side wall and the road surface of the tunnel, and annular outline belts are arranged on the annular door frames and the tunnel doors.

According to the scheme, the vision extension line of the tunnel waistband line adopts a yellow bottom blue arrow and a width of 0.30-0.90 m, the vision extension line of the tunnel waistband line shines by means of natural light in daytime and plays a role, the light transmittance and the light reflection rate of a yellow background are 2-5 times of that of a planar membrane shell I, the light transmittance of the blue arrow is 2-5 times of that of the yellow background, the distance between the blue arrows meets the high flash frequency of 2.5-3.5 Hz to strengthen the visibility of the waistband line, and the blue arrow of the vision extension line of the tunnel waistband line shines by means of solar power supply at night.

According to the scheme, the first light transmittance of the planar membrane shell is kept low and is less than or equal to 10% so as to reduce lateral penetrating light, and the first reflectivity of the planar membrane shell gradually changes from the approximate value of the reflectivity of the side wall of the tunnel to a lower value and is less than or equal to 10% from the outer side of the hole so as to reduce lateral reflecting light.

According to the scheme, the reflectivity of the planar membrane shell II is kept low and is less than or equal to 10% so as to reduce the reflected light at the top, and the light transmittance of the planar membrane shell II is gradually changed from the light-tight part to the outer side of the hole to the higher part of 50-75%.

According to the scheme, the linear suspension cables are longitudinally connected with the tunnel portal, the annular portal and the main anchoring pier outside the annular portal, the linear suspension cables are horizontally arranged between the tunnel portal and the portal along the longitudinal direction, the circumferential distance is 1.0-5.0 m, the color of each linear suspension cable is close to that of the planar membrane shell, each linear suspension cable is composed of multiple steel strand bundles, the linear suspension cables are subjected to corrosion prevention treatment, the linear suspension cables with the same section are connected through the circumferential steel strand, the circumferential steel strand is fixed on the secondary anchoring piers on the ground on the two sides of the shading shed, the circumferential steel strand distance is 2-5 times of the linear suspension cable distance, the flashing frequency requirement of 0.5-1.0 Hz is met, and a stable longitudinal fine and transverse finer space grid structure is formed together.

According to the scheme, the linear suspension cables are arranged in the range of the annular portal frame and the main anchoring pier in a longitudinally inclined mode, the sparse linear suspension cables are unfolded in a space inclined mode, the semi-closed space in the hole and the open space outside the hole are divided, and space transition is relieved.

According to the scheme, the linear suspension cable is longitudinally connected with the tunnel door, the annular door frame and the main anchoring pier on the outer side of the annular door frame by taking the position of the tunnel lamp as a starting point, then the linear suspension cable is connected with the guardrail to form a visual extension line of the tunnel lamp, and the linear self-luminous sight line induction facility utilizing solar energy to emit light is attached to the lower edge of the visual extension line of the tunnel lamp.

According to the scheme, the forward inclination angle of the annular portal frame is 10-30 degrees, the linear shape of the linear suspension cable is balanced together with the main anchoring pier, the annular self-luminous sight line induction facility utilizing solar energy to emit light is attached to the lower edge of the annular portal frame, the distance between the annular self-luminous sight line induction facility utilizing solar energy to emit light and the annular self-luminous sight line induction facility utilizing solar energy to emit light in the hole and at the hole opening is equal, the safe following distance is met, and the medium flash frequency is met.

According to the scheme, the point-shaped self-luminous sight line induction facility comprises self-luminous raised road signs attached to a road surface, self-luminous outline signs attached to the side surfaces of an access road and self-luminous guide arrows attached to the positions of a waistband line, wherein the self-luminous raised road signs, the self-luminous outline signs and the self-luminous guide arrows are equal in spacing and are arranged on the same cross section, the spacing meets high flash frequency, the luminous color of the self-luminous outline signs is different from that of the self-luminous raised road signs, the luminous color of the self-luminous guide arrows is different from that of the self-luminous raised road signs, the self-luminous guide arrows and the self-luminous raised road signs can constantly emit light or can flash at a uniform frequency, and the frequency is 0.5-1.0 Hz.

The invention has the beneficial effects that:

1) the design is strong in pertinence, the facility provides a general scheme for relieving road surface glare, side wall glare and top glare according to different glare positions and influence degrees from the causes of tunnel exit glare and white hole effect, selects a suspension cable structure and a film shell structure to form a main body part of the system from the aspect of material characteristics, overcomes the road surface and side wall glare influences such as zebra effect, stroboscopic effect and the like which are difficult to overcome by the conventional light reducing facility, has obvious glare phenomenon aiming at the side wall area below the waistband line, and has a large influence on the vision of a driver, provides a mode of gradually reducing the reflectivity of the side wall and maintaining the low light transmittance of the side wall, has obvious glare phenomenon aiming at the top area above the belt line, but the influence on the vision of a driver is relatively small, the aims of maintaining the low reflectivity of the top, increasing the light transmittance in order and realizing the transition of brightness and simultaneously inconspicuous glare are provided;

2) the transition of brightness is alleviated, the white hole effect of the tunnel exit in the daytime is relieved, the light transmittance at the top is changed from low to high, the low light transmittance is maintained at the side part, the orderly transition of the control of the brightness is realized, and the transition of glare and the brightness is considered;

3) and the black hole effect of the tunnel outlet at night is relieved. The solar energy is converted into electric energy to be stored, and the induction illumination of the exit approach of the night tunnel is realized through linear, annular and point-shaped self-luminous induction facilities;

4) the phenomenon of severe transition of the space is obviously improved, and the change from the closed space in the tunnel hole to the open space outside the tunnel hole is more moderate and the driving tension and discomfort are reduced by sequentially passing through the semi-closed space with gradually changed brightness, which is formed by the suspension cables and the membrane shell, between the tunnel door and the portal frame and the semi-open space, which is formed by the scattered suspension cables, between the portal frame and the anchoring section;

5) polymorphic, multi-frequency, multi-horizon gaze guidance. Comprehensively linear induction, annular induction and dotted induction, and carding high-frequency, medium-frequency, high-order, medium-order and low-order visual induction information to form comprehensive sight induction so as to effectively control the speed induction, the distance induction and the direction induction of a tunnel outlet;

6) the anti-dazzle and light-reducing facility utilizes natural light to serve as reinforced illumination of part of tunnel outlets, and utilizes stored solar energy to light linear, annular and point self-luminous inducing facilities to achieve induced illumination at night, so that electric energy is saved together.

7) Simple structure and durability.

Drawings

FIG. 1 is a plan view of the tunnel exit shelter of the present invention;

FIG. 2 is an elevational view of the tunnel exit shelter of the present invention;

FIG. 3 is a perspective view of the shade of the present invention;

FIG. 4 is a perspective view of the sight inducing system of the shade of the present invention;

FIG. 5 is a detail view of a belt line of the present invention;

1. a planar membrane shell I; 2. a planar membrane shell II; 3. a linear suspension cable; 4. a tunnel belt line; 5. a tunnel luminaire; 6. an annular gantry; 7. an endless profile band; 8. a linear self-luminous sight line inducing means; 9. an annular self-luminous sight line inducing facility; 10. a point-like self-luminous sight line inducing means; 11. a tunnel portal; 12. a main anchor pier; 13. circumferential steel strands; 14. a visual extension of the tunnel belt line; 15. a visual extension line of the tunnel luminaire; 16. self-luminous raised road signs; 17. self-luminous delineator; 18. a guardrail; 19. a secondary anchor pier; 20. self-illuminating guide arrows.

Detailed Description

The technical solution of the present invention is described below with reference to the accompanying drawings and examples.

As shown in fig. 1 to 5, the anti-glare sight line guidance system for tunnel exits according to the present invention comprises a light-shielding shed installed at a tunnel exit, the light-shielding shed comprising a planar first film shell 1, a planar second film shell 2, a linear suspension cable 3, an annular gantry 6, a linear self-luminous sight line guidance facility 8, an annular self-luminous sight line guidance facility 9, a point self-luminous sight line guidance facility 10, and a hole door 11, the hole door 11 being installed at one end of the light-shielding shed and corresponding to the tunnel exit, the annular gantry 6 being installed at the other end of the light-shielding shed, a visual extension line 14 of a tunnel beltline corresponding to the tunnel beltline 4 and a visual extension line 15 of a tunnel lamp corresponding to the tunnel lamp 5 being installed in the light-shielding shed, the planar first film shell 1 being installed outside the linear suspension cable 3 and below the visual extension line 14 of the tunnel beltline, the planar second film shell 2 being installed outside the linear suspension cable 3, and is positioned above a vision extension line 14 of a tunnel belt line, a linear self-luminous sight line induction facility 8 is attached to the inner side of the linear suspension cable 3, an annular self-luminous sight line induction facility 9 is attached to an annular portal frame 6, a point self-luminous sight line induction facility 10 is attached to the side wall and the road surface of the tunnel, and annular contour belts 7 are arranged on the annular portal frame 6 and the portal 11. The above constitutes the basic structure of the present invention.

The invention adopts the structure, the planar membrane shell 1 and the planar membrane shell 2 respectively play roles of relieving side glare, top glare and brightness transition, the linear suspension cable 3 bears the self weight of the system, the cross section is small, the zebra effect of the longitudinal and transverse directions of the road surface is obviously reduced, the vision extension line 14 of the tunnel waistband line and the vision extension line 15 of the tunnel lamp continue the vision guidance of the tunnel waistband line 4 and the tunnel lamp 5, the roles of relieving the road surface glare, direction induction and space transition are played, the annular portal frame 6 and the annular profile band 7 on the portal 11 play roles of vehicle distance induction together, and the linear self-luminous sight line induction facility 8, the self-luminous sight line induction facility 9 and the point self-luminous sight line induction facility 10 play roles of direction induction, vehicle distance induction and speed induction together. The tunnel exit formed by the above components has a comprehensive system of multiple anti-dazzle, shading transition, direction induction, vehicle distance induction and speed induction.

In this embodiment, the vision extension line 14 of tunnel waistband line adopts blue arrow at the bottom of yellow, width 0.30 ~ 0.90m, and the vision extension line 14 of tunnel waistband line relies on natural light shining, play a role daytime, and the luminousness and the reflectance ratio of its yellow background are 2 ~ 5 times of planar membrane shell 1, and the luminousness of its blue arrow is 2 ~ 5 times of yellow background, and the interval of blue arrow satisfies 2.5 ~ 3.5Hz high frequency of twinkling, in order to strengthen the visuality of waistband line, and the blue arrow of the vision extension line 14 of tunnel waistband line relies on solar energy power supply night to shine. Form a point-shaped self-luminous sight line induction facility 10 to strengthen the vehicle speed induction function together.

In this embodiment, the transmittance of the first planar film shell 1 is kept low and is less than or equal to 10% to reduce the lateral penetrating light, and the reflectance of the first planar film shell 1 gradually changes from the approximate value of the reflectance of the side wall of the tunnel to a low value and is less than or equal to 10% from the outside of the hole to reduce the lateral reflected light. The side glare is relieved together.

In this embodiment, the reflectivity of the second planar film shell 2 is kept low and is less than or equal to 10% to reduce the reflected light at the top, and the light transmittance of the second planar film shell 2 gradually changes from opaque to higher 50-75% from the outside of the hole. The top glare and the orderly transition of the brightness are jointly relieved.

In this embodiment, the linear suspension cable 3 is longitudinally connected with the tunnel door 11, the annular portal 6 and the main anchor pier 12 outside the annular portal 6, and is horizontally arranged between the tunnel door 11 and the portal 6 along the longitudinal direction, the circumferential distance is 1.0-5.0 m, the color of the linear suspension cable 3 is close to that of the planar membrane shell 2, the linear suspension cable 3 is composed of a plurality of steel strand bundles and is subjected to corrosion prevention treatment, the plurality of linear suspension cables 3 with the same section are connected through the circumferential steel strand 13, the circumferential steel strand 13 is fixed on the secondary anchor piers 19 on the ground at two sides of the shading shed, the distance of the circumferential steel strand 13 is 2-5 times of that of the linear suspension cables 3, the requirement of 0.5-1.0 Hz flash frequency is met, and a stable longitudinal fine and transverse finer space grid structure is formed together. The projection area under natural light is small, the longitudinal and transverse zebra effect of the road surface is obviously reduced, the glare of the road surface is relieved, and the shadow grid is a longitudinal strip rectangle, so that the direction induction and the vehicle speed induction are facilitated.

In the present embodiment, the linear suspension cables 3 are disposed in the range of the annular gantry 6 and the main anchor pier 12 in a longitudinally inclined manner, and are used for stabilizing the annular gantry 6, fixing the annular gantry 6 to the main anchor pier 12 and not covering any membrane shell. The sparse linear suspension ropes 3 are obliquely unfolded in space to divide a semi-closed space in the tunnel and an open space outside the tunnel, so that space transition is relieved, and visual continuity and direction induction effects of a tunnel outlet are facilitated.

In this embodiment, the linear suspension wire 3 is connected to the tunnel door 11, the annular gantry 6, and the main anchor pier 12 outside the annular gantry 6 in the longitudinal direction with the position of the tunnel lamp 5 as a starting point, and then the guardrail 18 is connected to form the visual extension line 15 of the tunnel lamp, and the linear self-luminous sight line inducing means 8 which emits light by solar energy is attached to the lower edge of the visual extension line 15 of the tunnel lamp. So as to strengthen the visual continuity of the tunnel exit and be beneficial to direction induction.

In the present embodiment, the forward inclination angle of the annular gantry 6 is 10 to 30 degrees, the linear shape of the linear suspension cable 3 is balanced together with the main anchor pier 12, the annular self-luminous sight line induction facility 9 which emits light by solar energy is attached to the lower edge of the annular gantry 6, and the distance between the annular self-luminous sight line induction facility 9 which emits light by solar energy in the hole and the hole opening 11 is equal to satisfy the safe following distance and the medium flash frequency. And forming all-weather vehicle distance induction at the tunnel outlet.

In the present embodiment, the self-luminous point-shaped sight line induction means 10 includes self-luminous protruding signs 16 attached to the road surface, self-luminous delineators 17 attached to the side surfaces of the maintenance road, and self-luminous guide arrows 20 attached to the position of the belt line 4, wherein the self-luminous protruding signs 16, the self-luminous delineators 17, and the self-luminous guide arrows 20 are equally spaced and disposed on the same cross section, the spacing satisfies a high flash frequency, the luminous color of the self-luminous delineators 17 is different from the color of the self-luminous protruding signs 16, the luminous color of the self-luminous guide arrows 20 is different from the color of the self-luminous protruding signs 16, the self-luminous guide arrows 20 and the self-luminous protruding signs 16 can constantly emit light, and can also flash at a uniform frequency of 0.5 to 1.0 Hz. The tunnel exit is formed together with all-weather speed induction and direction induction for avoiding visual fatigue.

The setting method of the invention comprises the following steps:

1) the facility is implemented at the exit of the tunnel, a planar membrane shell I1, a planar membrane shell II 2, a linear suspension cable 3, a circumferential steel strand 13 and the like are prefabricated and then transported to the site, and the annular portal frame 6 and the main anchoring pier 12 are cast in situ;

2) firstly, constructing a main anchoring pier 12 and an annular portal 6 at a set position on the periphery of a tunnel portal and the ground, then installing a linear suspension cable 3, anchoring the linear suspension cable 3 to the main anchoring pier 12, then installing an annular steel strand 13, anchoring the annular steel strand 13 to a secondary anchoring pier 19, and forming a stable space framework;

3) installing a planar membrane shell I1 and a planar membrane shell II 2 on the outer side of a space framework consisting of a linear suspension cable 3 and a circumferential steel strand 13, fixing the space framework by using a second circumferential steel strand 13, and anchoring the circumferential steel strand 13 to a secondary anchoring pier 19 to form a stable membrane locking structure;

4) installing a linear self-luminous sight line induction facility 8 on a linear suspension cable 3, installing an annular self-luminous sight line induction facility 9 on an annular gantry 6 and in a tunnel, and installing a point-shaped self-luminous sight line induction facility 10 on the road surface and the edge of an access road;

5) under the condition of large side wind of the tunnel, the structural section sizes of the linear suspension cables 3 and the annular steel stranded wires 13 can be properly increased;

6) the daily maintenance of the planar membrane shell I1 and the planar membrane shell II 2 is mainly to clean the outer surface layer and the inner surface layer.

While the embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined by the appended claims.