A pedestrian and non-motor vehicle dedicated tunnel and inner contour determination method thereof

Abstract

The present invention provides a dedicated tunnel for pedestrians and non-motor vehicles and a method for determining the inner contour thereof. The dedicated tunnel includes a non-motor vehicle lane, a separation zone and a sidewalk. The separation zone includes a conventional section, a fire-fighting facility section and a fire door section. The conventional section includes a structural column and a fire-proof roller shutter. The fire-fighting facility section includes a fire-proof isolation wall and a fire-fighting box room. The fire door section includes a fire-proof isolation wall and a fire door. Under normal working conditions, the fire-proof roller shutter is retracted, the fire door is closed, the sidewalk and the non-motor vehicle lane are connected, the field of vision in the tunnel is wide, and the sense of oppression is reduced. Under fire working conditions, the fire-proof roller shutter is lowered, the fire door is opened, and the sidewalk and the non-motor vehicle lane are separated into two separate compartments, each of which is an escape passage for personnel when a fire occurs in another space. The present invention reasonably utilizes the tunnel section, divides the tunnel into compartments by setting a separation zone, and solves the problem of personnel escape and evacuation in a single-hole dedicated tunnel for pedestrians and non-motor vehicles during a fire without increasing the project investment.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel engineering, and in particular relates to a pedestrian and non-motor vehicle dedicated tunnel and a method for determining the inner contour thereof. Background Art

[0002] Bicycle travel is green, environmentally friendly, convenient and flexible, and has become a trend and fashion in developed cities at home and abroad. Bicycle lanes can serve as a link between greenways, parks and urban nodes, create a bright business card for the city, enhance urban vitality, provide colorful public spaces for citizens to relax and exercise, promote the development of commerce and tourism along the route, and provide more path selection opportunities for medium and short-distance travel and cross-regional commuting along the route.

[0003] In order to implement the five development concepts of "innovation, coordination, green, openness and sharing", adapt to the development trend of bicycle transportation and meet the cycling needs of citizens, the country is accelerating the construction of bicycle lane networks, promoting the integration of the "three networks" of rail, public transportation and slow travel, and making every effort to create quality transportation. The construction of bicycle transportation systems has gradually become a hot spot in my country's urban construction work.

[0004] In the process of constructing a bicycle transportation network, it is inevitable that tunnels will be needed to cross mountains. Since pedestrian and non-motorized vehicle tunnels, which are mainly bicycle lanes, are generally small in scale and are often single-hole tunnels, when the tunnel length is large, the escape and evacuation of personnel in the event of a fire must be considered. Summary of the invention

[0005] The purpose of the present invention is to provide a pedestrian and non-motor vehicle dedicated tunnel and a method for determining its inner contour, which can effectively solve the problem of personnel escape and evacuation in a single-hole pedestrian and non-motor vehicle dedicated tunnel in the event of a fire while satisfying the traffic function and without increasing additional construction costs.

[0006] The present invention is implemented as follows: a pedestrian and non-motor vehicle dedicated tunnel comprises a non-motor vehicle lane, a separation zone and a sidewalk, wherein the non-motor vehicle lane, the separation zone and the sidewalk are arranged in sequence along the transverse direction of the tunnel, the separation zone comprises a conventional section, a fire-fighting facility section and a fire-proof door section, and the fire-fighting facility section and the fire-proof door section are arranged at a certain interval along the longitudinal direction of the tunnel;

[0007] The conventional section of the isolation zone includes a plurality of structural columns and a plurality of fireproof rolling shutters, wherein the plurality of structural columns are arranged at a certain interval, and the fireproof rolling shutter is located between two adjacent structural columns; the fire-fighting facility section includes a fireproof isolation wall and a fire-fighting box room, and the inner bottom of the fire-fighting box room is 0.7m higher than the sidewalk and non-motor vehicle road surface; the fire door section of the isolation zone includes a fireproof isolation wall and a fire door, and the bottom of the fire door is flush with the sidewalk and non-motor vehicle road;

[0008] Under normal working conditions, the fireproof roller shutter is rolled up and the fire door is closed, the sidewalk and the non-motorized vehicle lane are connected, the field of vision in the tunnel is wide, and the sense of oppression is reduced; under fire conditions, the fireproof roller shutter is lowered and the fire door is opened, the sidewalk and the non-motorized vehicle lane are separated into two separate cabins, each of which is an escape passage for people in the other space when a fire occurs. People in the cabin where the fire occurs enter the other cabin through the fire door to escape.

[0009] Furthermore, within the scope of the non-motorized vehicle lane, a longitudinally extending dedicated passage for fire trucks is set in the middle of the tunnel. The dedicated passage for fire trucks is marked with eye-catching markings. The limit width of the dedicated passage for fire trucks is not less than 4m, and the height is not less than 4.5m.

[0010] Furthermore, the limit width of the sidewalk and non-motorized vehicle lane is determined according to the number of lanes required, and the limit height is 2.5m.

[0011] Furthermore, the width of the fire door is not less than 1.2m, the height is not less than 2.1m, the width of a single fire isolation wall is greater than the width of a single fire door; the longitudinal arrangement spacing of the fire door sections of the isolation zone is 250 to 300m.

[0012] Furthermore, the fire fighting box room is embedded in the fireproof isolation wall, and is in the shape of a window hole as a whole, and both sides of the wall of the fireproof isolation wall are provided with closed doors to prevent smoke circulation, and a fire extinguisher or a fire hydrant is provided in the fire fighting box room;

[0013] Furthermore, the longitudinal arrangement spacing of the fire-fighting facilities section of the isolation zone is 50m.

[0014] Furthermore, corresponding ventilation, electrical, lighting and monitoring systems are respectively arranged within the non-motorized vehicle lane and the sidewalk.

[0015] Furthermore, the tunnel ventilation uses induced fans to reduce ventilation noise, creating a good environment for the passage of the sidewalks and non-motorized vehicle lanes.

[0016] Furthermore, the fire door adopts two control systems: remote control by automatic control equipment and on-site control.

[0017] In order to solve the above technical problems, the present invention also provides a method for determining the inner contour of the above pedestrian and non-motor vehicle dedicated tunnel, comprising the following steps:

[0018] S1. Determine the limits and widths of the isolation strips of the non-motorized vehicle lane, the sidewalk, and the fire truck lane respectively. Set the limit width of the non-motorized vehicle lane to a, the limit width of the sidewalk to c, the width of the isolation strip to b, the limit height of the non-motorized vehicle lane and the sidewalk to d, the limit width of the fire truck lane to e, and the limit height of the fire truck lane to f;

[0019] S2. Arrange non-motorized vehicle lanes, isolation strips and sidewalks in sequence along the transverse direction of the tunnel, and align the center line of the limit of the fire truck dedicated passage with the center line of the total width of the non-motorized vehicle lanes, isolation strips and sidewalks;

[0020] S3. Use the drawing method to determine the most economical inner contour of the tunnel. The steps are as follows:

[0021] S31, connect the upper left corner point A of the limit of the fire truck lane and the upper left corner point B of the limit of the non-motor vehicle lane, find the intersection point of the perpendicular midline AB and the limit midline of the fire truck lane, the intersection point is the center O1;

[0022] S32, find the intersection of the perpendicular bisector of the upper left corner point B of the non-motor vehicle lane limit and the lower left corner point C of the non-motor vehicle lane limit and O1B, the intersection being the center O2;

[0023] S33. Determine the minimum control distance h from the limit to the inner contour according to the decoration conditions in the tunnel;

[0024] S34, draw an arc 1 with O1 as the center, the radius R1 is the length of O1A + h, and the range of the arc 1 is the range A1 of the acute angle formed by O1B and the vertical center line of the fire lane limit;

[0025] S35, draw arc 2 with O2 as the center, the radius R2 is the length of O2B + h, and the range of arc 2 is the range A2' of the acute angle formed by O2B and O2C;

[0026] S36, determine the center O4 and radius R4 of the inverted arch according to the required height of the component provided in the inverted arch, and draw an arc 4 with O4 as the center and R4 as the radius, wherein the arc 4 only takes the inverted arch section;

[0027] S37, selecting the radius R3 of arc 3, using the small radius R3 to round the arcs 2 and 4, and finally determining the center of arc 3 and the angle range A3 and the position of its center O3;

[0028] The acute angle formed by S38, O2B and O2O3 is the final angle range A2 of arc 2; it can be calculated that the angle range of arc 4 is 180°-A1-A2-A3.

[0029] S39. Taking the vertical center line of the fire truck dedicated passage as a reference, the closed curve formed by the arc 1, arc 2, arc 3, arc 4 and their mirror images is the inner contour line of the tunnel.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The pedestrian and non-motor vehicle dedicated tunnel of the present invention comprises a non-motor vehicle lane, a separation zone and a pedestrian walkway arranged in sequence along the transverse direction of the tunnel. The separation zone comprises a conventional section and a fire door section, and the conventional section and the fire door section are alternately arranged along the longitudinal direction of the tunnel. The conventional section of the separation zone comprises a plurality of structural columns and a plurality of fireproof rolling shutters, and the fire door section of the separation zone comprises a fireproof isolation wall and a fireproof door.

[0032] Under normal working conditions, the fire shutters are rolled up, the fire doors are closed, the sidewalk and the non-motorized vehicle lane are connected, the tunnel has a wide field of vision, and the sense of oppression is reduced. Under fire conditions, the fire shutters are lowered, the fire doors are opened, and the sidewalk and the non-motorized vehicle lane are separated into two separate compartments, each of which is an escape passage for people in the other space when a fire occurs. People in the compartment where the fire occurs enter the other compartment through the fire door to escape.

[0033] The present invention rationally utilizes the tunnel section, divides the tunnel into compartments through fireproof roller curtains, and solves the problem of personnel escape evacuation in a single-hole pedestrian and non-motor vehicle dedicated tunnel when a fire occurs without additional engineering investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the cross-sectional layout of a dedicated tunnel for pedestrians and non-motor vehicles provided by an embodiment of the present invention;

[0035] Figure 2 It is a schematic elevational layout diagram of a conventional section of a separation zone of a dedicated tunnel for pedestrians and non-motor vehicles provided by an embodiment of the present invention;

[0036] Figure 3 It is a schematic elevational layout diagram of a fire door section of a separation zone of a dedicated tunnel for pedestrians and non-motor vehicles provided by an embodiment of the present invention;

[0037] Figure 4 It is a schematic elevational layout diagram of a fire protection facility section of a separation zone of a dedicated tunnel for pedestrians and non-motor vehicles provided by an embodiment of the present invention;

[0038] Figure 5 It is a cross-sectional schematic diagram of a fire fighting box room in a fire fighting facility section of a pedestrian and non-motor vehicle dedicated tunnel provided by an embodiment of the present invention;

[0039] Figure 6 is a schematic diagram of the boundary of a dedicated tunnel for pedestrians and non-motor vehicles provided by an embodiment of the present invention;

[0040] Figure 7 It is a schematic diagram of the inner contour of a dedicated tunnel for pedestrians and non-motor vehicles provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] See also Figures 1 to 3 , shows a preferred embodiment of the present invention, a pedestrian and non-motorized vehicle dedicated tunnel, comprising a non-motorized vehicle lane 10, a separation zone 20 and a sidewalk 30. The non-motorized vehicle lane 10, the separation zone 20 and the sidewalk 30 are arranged in sequence along the transverse direction of the tunnel. Among them, the separation zone 20 includes a conventional section, a fire-fighting facility section and a fire-proof door section, and the fire-fighting facility section and the fire-proof door section are arranged at a certain interval along the longitudinal direction of the tunnel. In this embodiment, the longitudinal arrangement spacing of the fire-fighting facility section of the separation zone 20 is 50m, and the longitudinal arrangement spacing of the fire-proof door section of the separation zone 20 is 250m to 300m.

[0044] Specifically, the conventional section of the isolation zone 20 includes a plurality of structural columns 201 and a plurality of fireproof rolling curtains 202. The plurality of structural columns 201 are arranged at certain intervals, and the fireproof rolling curtain 202 is located between two adjacent structural columns 201.

[0045] See also Figure 4 and Figure 5The fire-fighting facility section of the isolation zone 20 includes a fire-proof isolation wall 205 and a fire-fighting box room 206. The inner bottom of the fire-fighting box room 206 is 0.7m higher than the sidewalk 30 and the non-motorized vehicle lane 10. The fire door section of the isolation zone 20 includes a fire-proof isolation wall 203 and a fire door 204. The bottom of the fire door 204 is flush with the sidewalk 30 and the non-motorized vehicle lane 10.

[0046] Under normal working conditions, the fire shutter 202 is rolled up, the fire door 204 is closed, the sidewalk 30 is connected to the non-motorized vehicle lane 10, the tunnel has a wide field of vision, and the sense of oppression is reduced. Under fire conditions, the fire shutter 202 is put down, the fire door 204 is opened, the sidewalk 30 and the non-motorized vehicle lane 10 are separated into two separate compartments, each of which is an escape passage for people in the other space when a fire occurs. People in the compartment where the fire occurs enter another compartment through the fire door 204 to escape. The fire shutter 202 of this embodiment is remotely controlled by an automatic control device, and can also be controlled on site.

[0047] Within the non-motorized vehicle lane 10, a longitudinally extending fire truck dedicated passage 40 is set in the middle of the tunnel. The fire truck dedicated passage 40 is marked with eye-catching markings. The limit width of the fire truck dedicated passage 40 is not less than 4m, and the height is not less than 4.5m.

[0048] The limit width of the sidewalk 30 and the non-motorized vehicle lane 10 is determined according to the number of lanes required, and the limit height is 2.5m. The width of the fire door 204 is not less than 1.2m, and the height is not less than 2.1m. The width of a single fireproof isolation wall 203 is greater than the width of a single fireproof door 204. The fire fighting box room 206 is embedded in the fireproof isolation wall 205 of the fire fighting facility section, and is in the shape of a window hole as a whole. There are closed doors 207 on both sides of the wall to prevent smoke circulation. A fire extinguisher 208 or a fire hydrant is installed in the fire fighting box room 206. The width of a single fireproof isolation wall 205 is greater than the width of a single fire fighting box room 206.

[0049] The non-motorized vehicle lane 10 and the sidewalk 30 are provided with corresponding ventilation, electrical, lighting and monitoring systems. The tunnel is ventilated by an induced fan 50 to reduce ventilation noise and create a good environment for the passage of the sidewalk 30 and the non-motorized vehicle lane 10.

[0050] It can be seen that this embodiment rationally utilizes the tunnel section and divides the tunnel into compartments through fireproof roller shutters, thereby solving the problem of personnel escape and evacuation in a single-hole pedestrian and non-motor vehicle dedicated tunnel in the event of a fire without additional project investment.

[0051] See also Figure 6 and Figure 7 This embodiment also provides a method for determining the inner contour of the above-mentioned pedestrian and non-motor vehicle dedicated tunnel, comprising the following steps:

[0052] S1. Determine the limits of the non-motorized vehicle lane 10, the sidewalk 30, and the fire truck lane 40 and the width of the isolation zone 20 respectively, set the limit width of the non-motorized vehicle lane 10 to a, the limit width of the sidewalk 30 to c, the width of the isolation zone 20 to b, the limit height of the non-motorized vehicle lane 10 and the sidewalk 30 to d, the limit width of the fire truck lane 40 to e, and the limit height of the fire truck lane 40 to f;

[0053] S2. Arrange the non-motorized vehicle lane 10, the isolation strip 20 and the sidewalk 30 in sequence along the transverse direction of the tunnel, and align the limit center line of the fire truck dedicated passage 40 with the center line of the width of the non-motorized vehicle lane 10, the isolation strip 20 and the sidewalk 30;

[0054] S3. Use the drawing method to determine the most economical inner contour of the tunnel. The steps are as follows:

[0055] S31, connect the upper left corner point A of the limit of the fire truck dedicated passage 40 and the upper left corner point B of the limit of the non-motor vehicle lane 10, and find the intersection point of the perpendicular midline AB and the limit midline of the fire truck dedicated passage 40, and the intersection point is the center O1;

[0056] S32, find the intersection of the perpendicular bisector of the upper left corner point B of the non-motor vehicle lane 10 and the lower left corner point C of the non-motor vehicle lane 10 and O1B, the intersection being the center O2;

[0057] S33. Determine the minimum control distance h from the limit to the inner contour according to the decoration conditions in the tunnel;

[0058] S34, draw an arc 1 with O1 as the center, the radius R1 is the length of O1A + h, and the range of the arc 1 is the range A1 of the acute angle formed by O1B and the vertical center line of the fire lane limit;

[0059] S35, draw arc 2 with O2 as the center, the radius R2 is the length of O2B + h, and the range of arc 2 is the range A2' of the acute angle formed by O2B and O2C;

[0060] S36, determine the center O4 and radius R4 of the inverted arch according to the required height of the component provided in the inverted arch, and draw an arc 4 with O4 as the center and R4 as the radius, wherein the arc 4 only takes the inverted arch section;

[0061] S37, selecting the radius R3 of arc 3, using the small radius R3 to round the arcs 2 and 4, and finally determining the center of arc 3 and the angle range A3 and the position of its center O3;

[0062] The acute angle formed by S38, O2B and O2O3 is the final angle range A2 of arc 2; it can be calculated that the angle range of arc 4 is 180°-A1-A2-A3.

[0063] S39. Taking the vertical center line of the fire truck dedicated passage 40 as a reference, the closed curve formed by arc 1, arc 2, arc 3, arc 4 and their mirror images is the inner contour line of the tunnel.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for determining the inner contour of a dedicated tunnel for pedestrians and non-motor vehicles, wherein the dedicated tunnel for pedestrians and non-motor vehicles comprises a non-motor vehicle lane, a separation zone and a sidewalk, wherein the non-motor vehicle lane, the separation zone and the sidewalk are arranged in sequence along the transverse direction of the tunnel, wherein the separation zone comprises a conventional section, a fire-fighting facility section and a fire-proof door section, wherein the fire-fighting facility section and the fire-proof door section are arranged at a certain interval along the longitudinal direction of the tunnel; The conventional section of the isolation zone includes a plurality of structural columns and a plurality of fireproof rolling shutters, wherein the plurality of structural columns are arranged at a certain interval, and the fireproof rolling shutter is located between two adjacent structural columns; the fire-fighting facility section includes a fireproof isolation wall and a fire-fighting box room, and the inner bottom of the fire-fighting box room is 0.7m higher than the sidewalk and non-motor vehicle road surface; the fire door section of the isolation zone includes a fireproof isolation wall and a fire door, and the bottom of the fire door is flush with the sidewalk and non-motor vehicle road; Under normal working conditions, the fire shutter is rolled up, the fire door is closed, the sidewalk and the non-motorized vehicle lane are connected, the field of vision in the tunnel is wide, and the sense of oppression is reduced; under fire conditions, the fire shutter is put down, the fire door is opened, the sidewalk and the non-motorized vehicle lane are separated into two separate compartments, each of which is an escape passage for personnel in the other space when a fire occurs, and the personnel in the compartment where the fire occurs enter the other compartment through the fire door to escape; within the scope of the non-motorized vehicle lane, a longitudinally extending fire truck dedicated passage is set in the middle of the tunnel, the fire truck dedicated passage is marked with eye-catching markings, and the limit width of the fire truck dedicated passage is not less than 4m, and the height is not less than 4.5m; it is characterized in that The inner contour determination method comprises the following steps: S1. Determine the limits and widths of the isolation strips of the non-motorized vehicle lane, the sidewalk, and the fire truck lane respectively. Set the limit width of the non-motorized vehicle lane to a, the limit width of the sidewalk to c, the width of the isolation strip to b, the limit height of the non-motorized vehicle lane and the sidewalk to d, the limit width of the fire truck lane to e, and the limit height of the fire truck lane to f; S2. Arrange non-motorized vehicle lanes, isolation strips and sidewalks in sequence along the transverse direction of the tunnel, and align the center line of the limit of the fire truck dedicated passage with the center line of the total width of the non-motorized vehicle lanes, isolation strips and sidewalks; S3. Use the drawing method to determine the most economical inner contour of the tunnel. The steps are as follows: S31, connect the upper left corner point A of the limit of the fire truck lane and the upper left corner point B of the limit of the non-motor vehicle lane, find the intersection point of the perpendicular midline AB and the limit midline of the fire truck lane, the intersection point is the center O1; S32, find the intersection of the perpendicular bisector of the upper left corner point B of the non-motor vehicle lane limit and the lower left corner point C of the non-motor vehicle lane limit and O1B, the intersection being the center O2; S33. Determine the minimum control distance h from the limit to the inner contour according to the decoration conditions in the tunnel; S34, draw an arc 1 with O1 as the center, the radius R1 is the length of O1A + h, and the range of the arc 1 is the range A1 of the acute angle formed by O1B and the vertical center line of the fire lane limit; S35, draw arc 2 with O2 as the center, the radius R2 is the length of O2B + h, and the range of arc 2 is the range A2' of the acute angle formed by O2B and O2C; S36, determine the center O4 and radius R4 of the inverted arch according to the required height of the component provided in the inverted arch, and draw an arc 4 with O4 as the center and R4 as the radius, wherein the arc 4 only takes the inverted arch section; S37, selecting the radius R3 of arc 3, using the small radius R3 to round the arcs 2 and 4, and finally determining the center of arc 3 and the angle range A3 and the position of its center O3; The acute angle formed by S38, O2B and O2O3 is the final angle range A2 of arc 2; it can be calculated that the angle range of arc 4 is 180°-A1-A2-A3; S39. Taking the vertical center line of the fire truck dedicated passage as a reference, the closed curve formed by the arc 1, arc 2, arc 3, arc 4 and their mirror images is the inner contour line of the tunnel.

Images