CN110593033A - Method for setting highway long and steep downhill danger avoiding lane - Google Patents
Method for setting highway long and steep downhill danger avoiding lane Download PDFInfo
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- CN110593033A CN110593033A CN201910979468.2A CN201910979468A CN110593033A CN 110593033 A CN110593033 A CN 110593033A CN 201910979468 A CN201910979468 A CN 201910979468A CN 110593033 A CN110593033 A CN 110593033A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 239000002245 particle Substances 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims description 28
- 239000004576 sand Substances 0.000 claims description 13
- 238000004321 preservation Methods 0.000 claims description 9
- 102000002322 Egg Proteins Human genes 0.000 claims description 6
- 108010000912 Egg Proteins Proteins 0.000 claims description 6
- 210000004681 ovum Anatomy 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000005485 electric heating Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 239000010920 waste tyre Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000000670 limiting effect Effects 0.000 abstract description 4
- 239000004570 mortar (masonry) Substances 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/12—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions for forcibly arresting or disabling vehicles, e.g. spiked mats
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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Abstract
The invention belongs to the technical field of civil engineering, and particularly relates to a method for setting a long and steep downhill danger avoiding lane of a road; a method for setting a long and steep downhill danger-avoiding lane of a road comprises the steps of gradually reducing the speed of a braking lane consisting of a first section, a second section and a third section; the first section is an underwater subsidence area, the underwater subsidence area adopts a water tank with a shallow-dish-shaped arc-shaped cross section, and the water tank adopts a mortar rubble or concrete structure; the gravel with the thickness of 60-80 cm and the particle size of 2-4 cm is paved in the water tank, and the distance between the water surface in the water tank and the gravel is 25-35 cm. The invention provides a method for setting a long and steep downhill danger-avoiding lane of a road with a new structure, which comprehensively adopts various forms to gradually realize the functions of cooling, recovering braking, reducing resistance, reducing the vehicle speed and limiting and stopping; the deceleration is gradually reduced from weak to strong by using different methods of the three sections, and finally the purpose of safe risk avoidance is realized.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a method for setting a long and steep downhill danger avoiding lane of a road.
Background
A mountain road, particularly a mountain expressway, is inevitably subjected to terrain limitation, a continuous long steep downhill section is generated, and after a heavy vehicle is subjected to long-time continuous braking measures, a part of vehicles are subjected to brake hub overheating, so that the brake failure condition is caused. The technical standard of highway engineering (JTGB01-2014) states that an insurance avoiding lane is set on a continuous long steep downhill section in combination with a traffic safety evaluation argument. The purpose of the method is to provide a special deceleration parking lane which can be driven away from a main line and enter in the section road section where the condition can happen so as to ensure the safety of vehicles and personnel.
At present, expressway in China is generally provided with danger-avoiding lanes on long and steep downhill sections, many of the danger-avoiding lanes are additionally arranged on sections with multiple accidents after the expressway is put into use, and the common forms include aggregate sloping bed type, net cable barrier type, gravel pile type and the like. No unified industry standard is established at home so far to issue a specific setting method.
The material collecting sloping bed type danger avoiding lane is the most used and practical form in China at present, and is characterized in that broken gravels with a certain gradation are paved on a lane sloping bed, and vehicles are decelerated and stopped through the rolling resistance and sloping bed resistance of the material collecting sloping bed. However, a large number of examples and tests show that the shape, grading and paving thickness of the aggregate have different influences on different speeds, 36750and heavy vehicle braking has large influence difference, the vehicle is likely to be decelerated too fast to cause serious damage to a vehicle head and a front shaft and injury to a driver, and the vehicle is likely to rush to even out of the terminal point of a danger avoiding lane due to insufficient deceleration or aggregate hardening.
The net cable barrier type is limited by terrain and cannot effectively arrange a speed-reducing lane slope bed, and a net cable intercepting system with certain damping intensity is arranged near the entrance of the danger avoiding lane.
The gravel pile type is to pile loose gravel on the danger avoiding lane, and the vehicle is quickly decelerated and stopped by the resistance of the gravel pile, and the defect that the huge inertia force of the carriage and goods dragged by the rear part is easy to wash the front cab, so that personnel injury is caused.
In summary, the three common methods for setting the danger avoiding lane have two common defects in different degrees due to the fact that the deceleration method of the methods is not consistent with the synchronization principle of the braking tires of the vehicle, and one of the two common defects is that after an out-of-control vehicle drives into the danger avoiding lane and receives excessive resistance on the front portion of the front axle tire and the vehicle head, the carriage and goods are dragged by the rear portion of the vehicle due to the huge inertia impact force of the carriage and the goods, so that the front cab and the vehicle head are easily damaged, and the safety of personnel is endangered; secondly, when the out-of-control vehicle is blocked, self rescue and rescue cannot be carried out, most of vehicles need to wait for rescue and then vacate the danger avoiding lane again, the time for occupying the danger avoiding lane is long, and the potential safety hazard is large.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a novel method for setting a long and steep downhill danger avoiding lane of a road.
The specific technical scheme of the invention is as follows:
the invention provides a long and steep downhill danger-avoiding lane for a road, which utilizes a braking lane consisting of a first section, a second section and a third section to gradually reduce the speed; the first section is an underwater subsidence area, the underwater subsidence area adopts a water tank with a shallow-dish-shaped arc-shaped cross section, and the water tank adopts a mortar rubble or concrete structure; the gravel is laid in the water tank, the thickness of the gravel is 60-80 cm, the particle size of the gravel is 2-4 cm, the distance between the water surface in the water tank and the gravel is 25-35 cm, and the slopes of longitudinal slopes at the inlet end and the outlet end of the underwater subsidence area are 10% +/-5%.
The invention has the following beneficial effects:
the invention provides a method for setting a long and steep downhill danger-avoiding lane of a road with a new structure, which comprehensively adopts various forms to gradually realize the functions of cooling, recovering braking, reducing resistance, reducing the vehicle speed and limiting and stopping; the deceleration is gradually reduced from weak to strong by using different methods of the three sections, and finally the purpose of safe risk avoidance is realized.
Drawings
FIG. 1 is a schematic structural diagram of a long and steep downhill danger avoiding lane of a road in embodiment 1-3;
FIG. 2 is a cross-sectional view of a second section of examples 1-3;
FIG. 3 is a schematic plan view of a long and steep downhill refuge lane of a road according to embodiment 4;
FIG. 4 is a cross-sectional view of a second section of example 4;
FIG. 5 is a sectional view of the first section of example 4;
FIG. 6 is a sectional view of a top view of a long steep downgrade refuge lane of a road according to embodiment 4;
FIG. 7 is a schematic structural view of a long and steep downhill refuge lane of a road according to embodiment 5;
FIG. 8 is a sectional view of the insulation system of example 5;
FIG. 9 is a schematic structural view of a first segment in accordance with embodiment 6;
fig. 10 is a schematic structural view of a second segment in embodiment 7.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
Examples 1 to 3
As shown in fig. 1 and 2, embodiments 1 to 3 of the present invention provide 3 types of highway long and steep downhill refuge lanes, and the setting methods thereof are as follows:
the vehicle resistance is gradually reduced from weak to strong by using a braking lane consisting of a first section 1, a second section 2 and a third section 3; the first section 1 is an underwater subsidence area, the underwater subsidence area adopts a water tank with a shallow-dish-shaped arc-shaped cross section, and the water tank adopts a mortar rubble or concrete structure; the gravel stones 4 with the thickness of 60-80 cm and the particle size of 2-4 cm are laid in the water tank, the distance between the water surface in the water tank and the gravel stones 4 is 25-35 cm, and the slopes of longitudinal slopes at the inlet end and the outlet end of the underwater subsidence area are 10% +/-5%. The longitudinal slope represents the slope of the edge of the water trough dish, and is the ratio of the vertical height of the slope surface to the distance in the horizontal direction multiplied by 100%.
The length of the top of the water tank is 30-60 m, the width of the top of the water tank is 4.0m, and the depth of the middle part of the water tank is 1.1-1.3 m.
The second section 2 is a rolling resistance area, the rolling resistance area is arranged behind the underwater sinking resistance area, namely the terminal point of the water tank, the rolling resistance area adopts a trapezoidal section, the length of the top is 20-40 m, the width of the top is 3.5m, the width of the bottom is 3m, the depth is 80cm, and a 3% downhill slope is adopted for a longitudinal slope; and paving 60-70 cm thick ovum gravel 4 with the particle size of 2-4 cm in the rolling resistance area, wherein a gradually-changed transition section 5 with the thickness gradually increased by the ovum gravel 4 is arranged at one end, close to the underwater subsidence area, of the rolling resistance area from top to bottom, and the thickness of the ovum gravel 4 at the starting point of the gradually-changed transition section 5 is 10 cm. The longitudinal slope represents the gradient of the inclined plane of the trapezoidal section, and is the ratio of the vertical height of the slope to the distance in the horizontal direction multiplied by 100 percent.
Third section 3 is the sand heap buffering behind the rolling resistance district and blocks the net district, sand heap buffering blocks the net district and sets up trapezoidal free accumulational gravel pile 6, the height of gravel pile 6 is 1.5m, and length is 3.0 ~ 5.0m, one side that is close to the rolling resistance district at gravel pile 6 set up a plurality ofly with gravel pile 6 is near and become junked tire 7 that the echelonment set up, and one side of keeping away from the rolling resistance district behind gravel pile 6 sets up steel wire netting 8, steel wire netting 8 is through two way circle shape cable 9 and the ground anchor hookup of locating ground.
The invention provides a method for setting a long and steep downhill danger-avoiding lane of a road with a new structure, which comprehensively adopts the combination of various modes of 'resistance, reduction and blocking', and gradually realizes the functions of reducing temperature, recovering braking, reducing resistance, reducing vehicle speed and limiting and stopping; the deceleration is gradually reduced from weak to strong by using different methods of the three sections, and finally the purpose of safe risk avoidance is realized.
The first section adopts the functions of sinking resistance in water for deceleration and cooling and recovering the brake to realize deceleration; the first section is used as the first measure taken after the out-of-control vehicle enters the danger avoiding lane, and is characterized in that the braking function of the vehicle is basically recovered, meanwhile, due to the gradient of the water tank and the easy sliding property of the gravel and egg stones after soaking, the water resistance of the water tank and the sliding resistance of the gravel and egg stones in the water are gradually and uniformly formed, the rotation limiting effect on tires during braking of the vehicle is consistent, and meanwhile, the water temperature can quickly play a role in cooling and recovering the function of the brake hubs of the vehicle.
The second section adopts on-shore rolling resistance and braking deceleration to realize deceleration; when the vehicle is driven out from the water tank, the speed is reduced to a certain extent, the braking force is recovered, the vehicle speed can be further reduced through the rolling resistance of the pebbles and the gravels after entering the section, and the downhill mode is more favorable for balanced stress and drainage.
The third section adopts sand pile free deformation buffering and blocking net parking to realize speed reduction; when the out-of-control vehicle rushes to the section from the second section, the waste tires are stressed, and the rear gravel pile is stressed and freely deformed through buffer transmission until the vehicle is stopped by the stress of the steel wire netting of the final safety measure at the tail end of the area and the cable.
The roads are divided into five grades of expressways, first-level roads, second-level roads, third-level roads and fourth-level roads according to the division of the using tasks, functions and flow of the roads, vehicles and traffic volumes applicable to the roads of each grade are different, the bearing capacity of the roads is different for different automobiles or trucks, and meanwhile, the width of the vehicles and the height of a chassis are different, so that various parameters can be properly improved according to the grades and the bearing capacity of the roads, and the method is within the protection scope of the invention.
Specific parameters of examples 1 to 3 are shown in Table 1.
TABLE 1 specific parameters of examples 1-3
Example 4
Unlike the embodiment 1, the method for setting the highway long and steep downhill danger-avoiding lane is that two shallow ruts 18 are arranged on the gravel 4 in the water tank and the gravel 4 in the rolling resistance area as shown in fig. 6. The shallow track is arranged to improve the sinking resistance of the tire and prevent the wheel from deviating.
As shown in fig. 3, 4 and 5, in the present embodiment, a through rescue lane 10 having a width of 3.5m is provided at one side of the braking lane, one end of the rescue lane 10 is communicated with a main line 11 of an expressway, the other end is connected to the main line 11 of the expressway through a guide lane 12, and the guide lane is communicated with the braking lane. The rescue lane is arranged on the right side of the braking lane, so that the out-of-control vehicle can drive back to the main line, when the out-of-control vehicle is parked in any section, the out-of-control vehicle can turn right from the front to enter the rescue lane, necessary tools are provided in the section for self rescue, and after the out-of-control vehicle is parked and repaired, the out-of-control vehicle can drive back to the main line from the front.
As shown in fig. 3, in the embodiment, central division belt openings 13 are provided on the main line 11 of the expressway near the entrance and exit of the rescue lane, so that rescue or maintenance vehicles can quickly and conveniently enter the danger avoiding lane from the opposite lane to perform rescue or maintenance when needed.
Example 5
The method for setting the long and steep downhill danger-avoiding lane of the road is different from the embodiment 1 in that a heat-insulating system 14 is arranged in the underwater subsidence area; as shown in fig. 7 and 8, the heat preservation system 14 includes a heat preservation box 141 disposed on the gravel 4-way bed, a heat preservation pipeline disposed in the heat preservation box 141, a water inlet pipeline 143 and a water outlet pipeline 144 respectively disposed at two open ends of the heat preservation pipeline, a water inlet valve 148 disposed on the water inlet pipeline 143, and a first water pump 145 disposed on the water outlet pipeline 144, the heat preservation pipeline includes a plurality of hollow pipes 142 arranged in parallel, two adjacent hollow pipes 142 are connected by an elbow 147 to form a spiral pipeline, electric heating pipes are wound around the outer walls of the hollow pipes 142 and the elbow, and a temperature sensor 146 is disposed on the side wall of the water tank and near the water surface.
In cold areas in winter, when the weather is rainy or snowy or the temperature is low, water in the water tank is easy to freeze, so that the purpose of trap resistance in the trap resistance area cannot be realized, therefore, a heat preservation system is arranged to ensure that the trap resistance area is not influenced by the environment and the climate, and the purposes of trap resistance in water and recovery of the vehicle braking function are achieved; when the temperature sensor is used, the temperature sensor is used for detecting the temperature of the water surface of the water tank, when the detected temperature is lower than a threshold value, the electric heating pipe starts to heat, meanwhile, the water inlet valve and the first water pump are started, water in the water tank enters the heat insulation box body from the water inlet pipeline and flows into the water tank through the water outlet pipeline, the water in the water tank is prevented from freezing through heating and circulating, and the purpose of trap resistance is better realized; the temperature sensor is arranged at the middle position or the edge position of the side wall of the water tank, and the heat preservation box body is arranged at the middle position or the edge position in the water tank, so that the vehicle is prevented from rolling; of course, the temperature sensor, the valve, the electric heating pipe and the temperature sensor can be connected with the controller, and automatic control is realized through the controller.
Example 6
The method for setting the long and steep downhill danger avoiding lane of the road is different from the embodiment 1 in that a water replenishing system 15 is arranged in the underwater subsidence area; as shown in fig. 9, the water replenishing system 15 includes a liquid level meter 151 disposed on the gravel aggregate 4, a water replenishing pipeline 152, and a second water pump 153 disposed on the water replenishing pipeline 152, wherein one end of the water replenishing pipeline 152 is disposed on the gravel aggregate 4, and the other end thereof passes through the gravel aggregate 4 and is connected to a water replenishing tank.
In the embodiment, a first drainage system 16 is arranged in the water sinking area; the first drainage system 16 comprises a drainage pipe 161 and a water pump 162 arranged on the drainage pipe 161.
In the embodiment, the purposes of sinking and blocking in water and recovering the braking function are realized through the water in the water tank, and the water in the water tank is also required to be kept at a proper height, so that the height of the water surface is detected in real time through the liquid level meter, when the height of the water surface is smaller than a threshold value, the second water pump of the water supplementing system is started, water supplementing is started through the water supplementing pipeline, when the height of the water surface is larger than the threshold value, the water pump of the first water discharging system is started, water is discharged through the water discharging pipeline, and when the water level reaches the threshold value, the second water pump; the water replenishing system and the first drainage system are arranged at the position where the vehicle cannot roll; of course, the liquid level meter, the second water pump and the water pump can be connected with the controller, and automatic control is achieved through the controller.
Example 7
The method for setting the long and steep downhill danger-avoiding lane of the road is different from the embodiment 1 in that a second drainage system 17 is arranged in the rolling resistance area; as shown in fig. 10, the second drainage system 17 includes a sand base layer 171 provided on the bottom of the pebble 4 in the rolling resistance region, a drainage ditch 172 provided on one side of the sand base layer 171, the drainage ditch 172 being connected to a rain pipe network system through a rain pipe 173, and the drainage ditch 172 having holes 174 communicating with the sand base layer 171.
In the embodiment, the rolling resistance area realizes rolling resistance deceleration through pebbles and stones, and a large amount of water is accumulated on the road surface when the vehicle is in heavy rain, so that the road surface is muddy, the deceleration of the vehicle is influenced, the service life of the vehicle is also influenced, and therefore, a second drainage system is arranged in the rolling resistance area; the rainwater permeates the sand basic unit through the gap infiltration of gravel, then partly permeates the underground, and partly passes through sand basic unit and flows into the escape canal, and the rainwater pipe network system is gone into to rethread rainwater pipe, can arrange the water on road surface fast like this, and the road surface rapid draing of being convenient for realizes sinking the purpose of hindering.
Comparative examples 1 to 3
Comparative examples 1-3 provide 3 methods for setting up a long and steep downhill refuge lane on a road, which are different from those of examples 1-3 in each parameter, and the specific parameters are shown in table 2
TABLE 2 concrete parameters of comparative examples 1 to 3
Test example 1
Taking the long and steep downhill danger-avoiding lanes arranged in the examples 1-3, the comparison examples 1-3 and the Chinese patent CN106758606B as a test 1-3 group, a comparison 1-3 group and a positive 1 group, evaluating the stopping time and the safety performance of each danger-avoiding lane group, taking 5 parallel samples in each group, averaging the results, and viewing the results in Table 3
It can be seen from table 2 that the particle size of the pebbles and gravels, the laying thickness, the height of the water surface in the water tank, the length of the water tank and the length of the trapezoid cross section all have significant influences on the stopping time and the safety performance of the danger avoiding lane, only when the length of the opening of the water tank of the danger avoiding lane is controlled to be 30-60 m, the thickness of the pebbles and gravels laid in the water tank is controlled to be 60-80 cm, the particle size is controlled to be 2-4 cm, the distance between the water surface in the water tank and the pebbles and gravels 4 is controlled to be 25-35 cm, the length of the opening of the trapezoid cross section is controlled to be 20-40 m, the thickness of the pebbles and gravels laid in the water tank is controlled to be 60-70 cm, the particle size is controlled to be 2-4 cm.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (10)
1. A method for setting a long and steep downhill danger-avoiding lane of a road is characterized in that a braking lane consisting of a first section (1), a second section (2) and a third section (3) is used for reducing the speed gradually; the first section (1) is an underwater subsidence area, the underwater subsidence area adopts a water tank with a shallow-dish-shaped arc-shaped cross section, and the water tank adopts a mortar-laid rubble or concrete structure; the gravel (4) with the thickness of 60-80 cm and the particle size of 2-4 cm is paved in the water tank, the distance between the water surface in the water tank and the gravel (4) is 25-35 cm, and the slopes of longitudinal slopes at the inlet end and the outlet end of the underwater subsidence area are both 10% +/-5%.
2. The method for setting the highway long and steep downhill danger-avoiding lane according to claim 1, wherein the second section (2) is a rolling resistance area arranged behind the underwater subsidence area, the rolling resistance area adopts a trapezoidal section, the top length is 20-40 m, the top width is 3.5m, the bottom width is 3m, the depth is 80cm, and a longitudinal slope adopts a 3% downhill; and the gravel stones (4) with the thickness of 60-70 cm and the particle size of 2-4 cm are laid in the rolling resistance area, a gradually-changed transition section (5) with the thickness gradually increased is arranged at one end, close to the underwater subsidence area, of the rolling resistance area, and the thickness of the gravel stones (4) at the starting point of the gradually-changed transition section (5) is 10 cm.
3. The method for setting the highway long and steep downgrade danger avoiding lane according to claim 2, wherein two shallow ruts (18) are arranged on the gravel stones (4) in the flume and the gravel stones (4) in the rolling resistance area.
4. The method for setting the highway long and steep downgrade refuge lane according to claim 2, wherein the third section (3) is a sand pile buffer blocking net area behind a rolling resistance area, the sand pile buffer blocking net area is provided with a trapezoidal free-stacking gravel pile (6), the height of the gravel pile (6) is 1.5m, the length of the gravel pile is 3.0-5.0 m, one side of the gravel pile (6) close to the rolling resistance area is provided with a plurality of waste tires (7) which are close to the gravel pile (6) and are arranged in a step shape, one side of the gravel pile (6) far away from the rolling resistance area is provided with a steel wire netting (8), and the steel wire netting (8) is hooked with a ground anchor arranged on the ground through two-way loop cables (9).
5. The method for setting the highway long and steep downgrade refuge lane according to claim 1, wherein a through rescue lane (10) with the width of 3.5m is arranged on one side of the braking lane, one end of the rescue lane (10) is communicated with a main line (11) of a highway, the other end of the rescue lane is connected with the main line (11) of the highway through a guide lane (12), and the guide lane is communicated with the braking lane.
6. The method for setting up a long and steep downgrade refuge lane according to claim 5, wherein a central division strip opening (13) is provided on the main line (11) of the expressway near both the entrance and exit of the refuge lane.
7. The method for setting the highway long and steep downgrade refuge lane according to claim 1, wherein a heat preservation system (14) is arranged in the water trap area; thermal insulation system (14) is including locating insulation box (141) on gravel (4) way bed, locate insulating tube in insulation box (141), locate respectively inlet channel (143) and outlet conduit (144) of insulating tube both ends, locate inlet valve (148) on inlet channel (143) and locating first water pump (145) on outlet conduit (144), insulating tube includes many parallel arrangement's hollow tube (142), adjacent two connect through return bend (147) between hollow tube (142) and form helical structure form pipeline, just hollow tube (142) with all around being equipped with electric heating pipe on the outer wall of return bend, just on the lateral wall of basin and be close to surface of water department and be equipped with temperature sensor (146).
8. The method for setting the highway long and steep downgrade refuge lane according to claim 1, wherein a water replenishing system (15) is arranged in the underwater trapped area; the water replenishing system (15) comprises a liquid level meter (151) arranged on the gravel ovum (4), a water replenishing pipeline (152) and a second water pump (153) arranged on the water replenishing pipeline (152), one end of the water replenishing pipeline (152) is arranged on the gravel ovum (4), and the other end of the water replenishing pipeline passes through the gravel ovum (4) and is connected with a water replenishing tank.
9. The method for setting the highway long and steep downgrade refuge lane according to claim 8, wherein a first drainage system (16) is arranged at the water trap area; the first drainage system (16) comprises a drainage pipeline (161) and a water pump (162) arranged on the drainage pipeline (161).
10. The method for setting the highway long and steep downgrade refuge lane according to claim 1, wherein a second drainage system (17) is provided in the rolling resistance region; second drainage system (17) is including locating the gravel of the rolling resistance district (4) sand basic unit (171) bottom one side of sand basic unit (171) is equipped with escape canal (172), escape canal (172) are through downspout (173) connection rainwater pipe network system, just be equipped with on escape canal (172) with hole (174) of sand basic unit (171) intercommunication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979468.2A CN110593033B (en) | 2019-10-15 | 2019-10-15 | Setting method of highway steep downhill escape lane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910979468.2A CN110593033B (en) | 2019-10-15 | 2019-10-15 | Setting method of highway steep downhill escape lane |
Publications (2)
| Publication Number | Publication Date |
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| CN110593033A true CN110593033A (en) | 2019-12-20 |
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| KR200255923Y1 (en) * | 2001-08-17 | 2001-12-13 | 극동엔지니어링(주) | A safety stopping road against break trouble of a vehicle at a slope road |
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| CN201933445U (en) * | 2011-03-02 | 2011-08-17 | 广西壮族自治区交通规划勘察设计研究院 | Slideway retecord emergency lane |
| CN203741665U (en) * | 2014-01-13 | 2014-07-30 | 长安大学 | Combined harbor type hedge lane |
| CN106012724A (en) * | 2016-07-15 | 2016-10-12 | 山西省交通科学研究院 | Variable-slope combined-type emergency escaping lane |
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| KR200255923Y1 (en) * | 2001-08-17 | 2001-12-13 | 극동엔지니어링(주) | A safety stopping road against break trouble of a vehicle at a slope road |
| CN2890157Y (en) * | 2006-05-11 | 2007-04-18 | 北京中路安交通科技有限公司 | Combined emergency roadway |
| CN101168950A (en) * | 2006-10-25 | 2008-04-30 | 兰州交通大学 | Emergency danger-avoiding ramp |
| CN201933445U (en) * | 2011-03-02 | 2011-08-17 | 广西壮族自治区交通规划勘察设计研究院 | Slideway retecord emergency lane |
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