Water-resistant construction road structure and construction method

By setting up a combined structure of waterproof layer, subbase layer, waterproof layer, thin subbase layer, permeable layer and wear-resistant surface subbase layer on the construction access road, the problem of muddy roads caused by rainwater is solved, the efficiency of rainwater drainage and road surface stability are improved, and construction safety and progress are ensured.

CN116815576BActive Publication Date: 2026-02-17XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1
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Patent Information

Application Number
CN202310873902.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-17
Publication Date
2026-02-17
Estimated Expiration
2043-07-17

AI Technical Summary

Technical Problem

During the road construction phase, rainwater makes the roads muddy, reducing the road surface adhesion coefficient and causing transport vehicles to skid, sideslip, and get stuck, affecting driving safety and construction progress.

Method used

The system employs a combination structure of waterproof layer, subbase layer, waterproof layer, thin subbase layer, permeable layer and wear-resistant surface subbase layer, combined with waterproof blanket and permeable materials, to form a water-resistant construction access road. The waterproof and permeable design improves rainwater drainage efficiency and enhances road surface stability.

Benefits of technology

It effectively prevents roads from being soaked by rainwater, improves the efficiency of rainwater drainage, enhances road surface stability, prevents collapse, and ensures driving safety and construction progress.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a water-resistant construction road structure, which comprises a base layer, two water barriers arranged on both sides of the base layer, the water barriers being rectangular road grooves filled with waterproof materials for water isolation, and a cushion layer arranged on the top of the base layer. The water-resistant construction road structure is improved in water drainage efficiency by the cooperation of the water barriers, the cushion layer, the waterproof layer, the thin cushion layer, the water-permeable layer and the wear-resistant surface cushion layer, and the road is prevented from being muddy and soft due to water immersion. The device has a simple structure and high practicability, and the combination of the waterproof layer and the water-permeable layer can effectively solve the problem of muddy road in rainy days. Moreover, the materials used in the application replace concrete and asphalt, and the construction road has the functions of high wear resistance and anti-collapse.
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Description

Technical Field

[0001] This invention relates to the field of temporary site construction, and in particular to a water-resistant construction access road structure and construction method. Background Technology

[0002] To ensure smooth access for vehicles and personnel to and from the site, and to ensure that necessary materials can be delivered to the site in a timely manner, it is necessary to build a temporary construction road near the road and ensure that the temporary construction road is fully accessible.

[0003] As the main transportation artery for road construction, the construction access road is a necessary condition for ensuring the rapid progress of the project and the primary condition for ensuring traffic safety. However, during the road construction phase, some areas experience heavy rainfall, making the roads muddy and the road surface soft and sticky. This reduces the road surface's adhesion coefficient, making vehicles prone to slipping, spinning, and skidding, and easily getting stuck. This is especially true for large-tonnage transport vehicles, which can seriously affect traffic safety and construction progress.

[0004] Therefore, it is necessary to provide a water-resistant construction access road structure and construction method to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a water-resistant construction access road structure and construction method, which solves the problems that rainwater makes roads muddy, reduces the road surface adhesion coefficient, and causes transport vehicles to easily slip, spin, and skid, making them prone to getting stuck, which seriously affects driving safety and construction progress.

[0006] To solve the above-mentioned technical problems, the present invention provides a water-resistant construction access road structure, comprising: a base layer;

[0007] A waterproof layer, two waterproof layers are respectively disposed on both sides inside the base layer, the waterproof layer is a rectangular road groove, and the interior is filled with waterproof material for waterproofing;

[0008] A subbase layer is placed on top of the base layer. A waterproof layer is placed on top of the subbase layer. A thin subbase layer is placed on top of the waterproof layer. A permeable layer is placed on top of the thin subbase layer. A wear-resistant subbase layer is placed on top of the permeable layer. The subbase layer is located between the base layer and the waterproof layer and is in contact with the waterproof layer. The raw material is a mixture of round-grained sand and clay in a 3:1 ratio. The waterproof layer is located between the subbase layer and the thin subbase layer. A waterproof blanket made of a certain material is laid. The thin subbase layer is located between the waterproof layer and the permeable layer. The raw material is a mixture of round-grained sand and clay in a 3:1 ratio. The permeable layer is located between the thin subbase layer and the wear-resistant subbase layer. The raw material is pebbles of a certain particle size. The wear-resistant subbase layer is located on the permeable layer, and its width is the wheel track of the construction vehicle.

[0009] Preferably, the base layer material is cement-stabilized graded crushed stone, with a laying thickness of 55-60cm.

[0010] Preferably, the roadbed construction of the waterproof layer includes a roadbed with a width of 60cm and a depth of 50cm, with the roadbed spacing set at 6m for two lanes and 4m for one lane; the waterproof layer is a mixture of tailings and recycled glass fiber, and the waterproof material is evenly filled into the roadbed and compacted.

[0011] Preferably, during the fabrication of the cushion layer, the raw materials are mixed to obtain a uniform mixture, which is a mixture of round sand and clay in a mass ratio of 3:1. A portion of the mixture is evenly laid on the base layer according to the principle of more in the middle and less on the sides. The cross-sectional slope of the cushion layer is 2% to 3%. The laid mixture is then rolled and shaped to form the cushion layer with a thickness of 4-7 cm.

[0012] Preferably, the waterproof layer is a waterproof blanket laid on the padding layer to form waterproofing. The waterproof blanket is made of graded natural sodium-based bentonite particles and corresponding additives as raw materials. The bentonite particles are fixed between the geotextile and the plastic woven fabric through needle punching process and equipment to make a blanket-shaped waterproof roll with a weight of 4000g.

[0013] Preferably, the thin pad layer is made from the remaining uniform mixture used to make the pad layer. The mixture is evenly spread on the waterproof layer and rolled to form a thin pad with a thickness of 3-5 cm.

[0014] Preferably, the permeable layer uses pebbles with a particle size of 5-25mm. After the pebbles are laid on the mixture and compacted, the thickness of the permeable layer is 5-8cm.

[0015] Preferably, the wear-resistant pad has a height of 1cm and a width of 50cm, and is laid on the permeable layer according to the wheel track of the construction vehicle.

[0016] Preferably, the cushion layer has multiple steel pipes inside, the top of each steel pipe has a water-permeable hole, the inside of each water-permeable hole has a water-permeable membrane, and both sides of the outer surface of each steel pipe have a drain pipe.

[0017] A construction method includes the following steps: S1. Before the base course is filled, the construction site is laid out and leveled; after the leveling is completed, the construction site is compacted, and after the compaction degree is qualified, cement-stabilized crushed stone is laid, and a roadbed with a width of 60cm and a depth of 50cm is reserved in advance. After cyclic compaction, the base course elevation and compaction degree are reached as designed, and then the next process is carried out.

[0018] S2. The base construction reserves a road trench with a width of 60cm and a depth of 50cm. The base spacing is set at 6m for two lanes and 4m for one lane. The specific method is to measure and lay out the base during construction. When the base layer is compacted to 5cm, lay out a pure steel mold with a length of 5m, a width of 60cm and a height of 50cm from the center line of the road to the left and right sides for 2.3m or 3.3m.

[0019] S3. After the base layer is compacted, remove the pure steel mold, then fill the waterproof material evenly into the roadbed, and compact the waterproof material in the roadbed.

[0020] S4. The raw materials of the subbase 3 are mixed to obtain a uniform mixture. A portion of the mixture is evenly laid on the base layer of the road according to the principle of more in the middle and less on both sides. The laid mixture is rolled and compacted repeatedly to form the subbase.

[0021] S5. The waterproof layer is laid on the padding layer, and the overlap width of the waterproof layer is 30cm to form the waterproof layer;

[0022] S6. The mixture of the thin pad layer is evenly laid on the waterproof layer and rolled into shape. Then, pebbles are laid on the mixture and rolled into shape to form the permeable layer.

[0023] S7. The wear-resistant surface pad is laid on the permeable layer according to the wheel track of the construction vehicle.

[0024] Compared with related technologies, the water-resistant construction access road structure and construction method provided by the present invention have the following beneficial effects:

[0025] This invention provides a water-resistant construction access road structure. Through the cooperation of a waterproof layer, a subbase layer, a waterproof layer, a thin subbase layer, a permeable layer, and a wear-resistant surface subbase layer, it improves the efficiency of rainwater drainage and avoids the mud and softness of roads caused by rainwater soaking. This device has a simple structure and strong practicality. In areas with heavy rainfall, the combination of a waterproof layer and a permeable layer can effectively solve the problem of muddy roads in rainy weather. Moreover, the materials used in this invention replace concrete and asphalt, and the constructed access road has high wear resistance and anti-collapse properties. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the first embodiment of a water-resistant construction access road structure provided by the present invention;

[0027] Figure 2 This is a schematic diagram of a second embodiment of a water-resistant construction access road structure provided by the present invention;

[0028] Figure 3 A construction process flow diagram of a construction method provided by the present invention;

[0029] Figure 4 This invention provides a material modification preparation method for a construction method.

[0030] The numbers in the diagram are: 1. Base layer, 2. Waterproof layer, 3. Subbase layer, 4. Waterproof layer, 5. Thin subbase layer, 6. Permeable layer, 7. Wear-resistant subbase layer, 8. Steel pipe, 9. Permeable hole, 10. Permeable membrane, 11. Drainage pipe. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Please refer to the following: Figure 1 ,in, Figure 1 This is a schematic diagram of a first embodiment of a water-resistant construction access road structure provided by the present invention. A water-resistant construction access road structure includes: a base layer 1;

[0033] Waterproof layer 2, two waterproof layers 2 are respectively disposed on both sides inside the base layer 1, the waterproof layer 2 is a rectangular road groove, and the interior is filled with waterproof material for waterproofing;

[0034] A cushion layer 3 is placed on top of the base layer 1. A waterproof layer 4 is placed on top of the cushion layer 3. A thin cushion layer 5 is placed on top of the waterproof layer 4. A permeable layer 6 is placed on top of the thin cushion layer 5. A wear-resistant cushion layer 7 is placed on top of the permeable layer 6. The cushion layer 3 is located between the base layer 1 and the waterproof layer 4 and is in contact with the waterproof layer 2. The raw material is a mixture of round-grained sand and clay in a 3:1 ratio. The waterproof layer 4 is located between the cushion layer 3 and the thin cushion layer 5, and a waterproof blanket made of a certain material is laid on it. The thin cushion layer 5 is located between the waterproof layer 4 and the permeable layer 6. The raw material is a mixture of round-grained sand and clay in a 3:1 ratio. The permeable layer 6 is located between the thin cushion layer 5 and the wear-resistant cushion layer 7. The raw material is pebbles of a certain particle size. The wear-resistant cushion layer 7 is located on the permeable layer 6, and its width is the wheel track of the construction vehicle.

[0035] The base layer 1 is made of cement-stabilized graded crushed stone, with a thickness of 55-60cm.

[0036] The waterproof layer 2 has a roadbed with a width of 60cm and a depth of 50cm reserved during the construction of the road base. The roadbed is spaced 6m for two lanes and 4m for one lane. The waterproof layer 4 is a mixture of tailings and recycled glass fiber. The waterproof material is evenly filled into the roadbed and compacted.

[0037] During the fabrication of the cushion layer 3, the raw materials are mixed to obtain a uniform mixture, which is a mixture of round sand and clay in a mass ratio of 3:1. A portion of the mixture is evenly laid on the base layer 1 according to the principle of more in the middle and less on the sides. The cross-sectional slope of the cushion layer 3 is 2% to 3%. The laid mixture is rolled and shaped to form the cushion layer 3 with a thickness of 4-7cm.

[0038] The waterproof layer 4 is a waterproof blanket laid on the padding layer 3 to form a waterproof layer. The waterproof blanket is made of graded natural sodium-based bentonite particles and corresponding additives as raw materials. The bentonite particles are fixed between the geotextile and the plastic woven fabric through needle punching process and equipment to make a blanket-shaped waterproof roll with a weight of 4000g.

[0039] The thin pad 5 is made from the remaining uniform mixture used to make the pad 3. The mixture is evenly spread on the waterproof layer 4 and rolled to form a thin pad with a thickness of 3-5cm.

[0040] The permeable layer 6 is made of pebbles with a particle size of 5-25mm. The pebbles are laid on the mixture and compacted. The thickness of the permeable layer 6 is 5-8cm.

[0041] The wear-resistant pad 7 has a height of 1cm and a width of 50cm, and is laid on the permeable layer 6 according to the wheel track of the construction vehicle.

[0042] The working principle of the water-resistant construction access road structure provided by this invention is as follows:

[0043] During the work, the following steps are first laid on the base layer 1: fine sand cushion layer 3, waterproof layer 4, thin cushion layer 5, permeable layer 6, and wear-resistant surface cushion layer 7. Before filling the base layer 1, the construction site is laid out and leveled. After the surface is cleared, the construction site is compacted. After the compaction degree is qualified, cement-stabilized crushed stone is laid. A roadbed with a width of 60cm and a depth of 50cm is reserved in advance. After cyclic compaction, the design elevation and compaction degree of the base layer 1 are reached before proceeding to the next process.

[0044] The base course 1 is designed with a road trench 60cm wide and 50cm deep. The base course 1 is designed with a 6m interval for two lanes and a 4m interval for one lane. The specific method is to measure and lay out the base course 1 during construction. When the base course 1 is compacted to 5cm, lay out a pure steel mold 5m long, 60cm wide and 50cm high 2.3m or 3.3m from the center line of the road to the left and right sides.

[0045] After the base layer 1 is compacted, remove the pure steel mold, then fill the waterproof material evenly into the roadbed, and compact the waterproof material in the roadbed.

[0046] The raw materials of the subbase 3 are mixed to obtain a uniform mixture. A portion of the mixture is evenly laid on the road base 1 according to the principle of more in the middle and less on both sides. The laid mixture is then rolled and rolled repeatedly to form the subbase 3.

[0047] Waterproof layer 4 is laid on the subbase 3, with an overlap width of 30cm, forming waterproof layer 4;

[0048] The mixture of the thin cushion layer 5 is evenly laid on the waterproof layer 4 and compacted. Then, pebbles are laid on the mixture and compacted to form a permeable layer 6.

[0049] The wear-resistant surface layer 7 is laid on the permeable layer 6 according to the wheel track of the construction vehicle.

[0050] Compared with related technologies, the water-resistant construction access road structure provided by the present invention has the following beneficial effects:

[0051] This invention provides a water-resistant construction access road structure. Through the coordinated use of a waterproof layer 2, a subbase 3, a waterproof layer 4, a thin subbase 5, a permeable layer 6, and a wear-resistant surface subbase 7, it improves the efficiency of rainwater drainage, preventing the road from becoming muddy and soft due to rainwater soaking. This device has a simple structure and strong practicality. In areas with high rainfall, the combination of the waterproof layer 4 and the permeable layer 6 can effectively solve the problem of muddy roads in rainy weather. Moreover, the materials used in this invention replace concrete and asphalt, and the constructed access road has high wear resistance and is resistant to collapse.

[0052] Second Embodiment

[0053] Please refer to the following: Figure 2 Based on the first embodiment of this application which provides a water-resistant construction access road structure and construction method, the second embodiment of this application proposes another water-resistant construction access road structure and construction method. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0054] Specifically, the difference in the water-resistant construction access road structure and construction method provided in the second embodiment of this application is that the water-resistant construction access road structure includes: multiple steel pipes 8 are arranged inside the cushion layer 3, water-permeable holes 9 are opened on the top of the steel pipes 8, water-permeable membranes 10 are arranged inside the water-permeable holes 9, and drainage pipes 11 are arranged on both sides of the outer surface of the steel pipes 8.

[0055] The working principle of the water-resistant construction access road structure provided by this invention is as follows:

[0056] During operation, several steel pipes 8 are first added inside the padding layer 3, waterproof layer 4, thin padding layer 5, permeable layer 6 and wear-resistant padding layer 7. The steel pipes 8 are laid at intervals of 5-10 meters. Several permeable holes 9 are opened at the top of the steel pipes 8. A permeable membrane 10 is installed inside the permeable holes 9. The function is to allow water to flow into the steel pipes 8 through the permeable holes 9 and the permeable membrane 10, and to prevent soil and sand from falling into the holes.

[0057] The water inside the steel pipe 8 is discharged to both ends, flowing through the drain pipe 11 to the outside of the waterproof layer 2 and then being discharged.

[0058] Compared with related technologies, the water-resistant construction access road structure provided by the present invention has the following beneficial effects:

[0059] This invention provides a water-resistant construction access road structure. By setting multiple steel pipes 8, the road surface strength is increased, water that seeps into the road surface is recovered, and rainwater that seeps in is drained away. This device has a simple structure, strong practicality, prevents road surface collapse, enhances the road surface's support capacity, and improves drainage effect.

[0060] Third Embodiment

[0061] Please refer to the following: Figure 3 Based on the first embodiment of this application which provides a water-resistant construction access road structure and construction method, the second embodiment of this application proposes another water-resistant construction access road structure and construction method. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0062] Specifically, the third embodiment of this application provides a construction method that differs in that the construction method includes the following steps: S1, before the base course 1 is filled, the construction site is laid out and leveled; after the leveling is completed, the construction site is compacted, and after the compaction degree is qualified, cement-stabilized crushed stone is laid, and a roadbed with a width of 60cm and a depth of 50cm is reserved in advance. After cyclic compaction, the designed elevation and compaction degree of the base course 1 are reached before proceeding to the next process.

[0063] S2. The base course 1 is constructed with a reserved road trench with a width of 60cm and a depth of 50cm. The base course 1 is set at intervals of 6m for two lanes and 4m for one lane. The specific method is that during the construction of the base course 1, the layout is carried out by measurement. When the base course 1 is compacted to 5cm, a pure steel mold with a length of 5m, a width of 60cm and a height of 50cm is placed 2.3m or 3.3m from the center line of the road to the left and right sides.

[0064] S3. After the base layer 1 is compacted, the pure steel mold is removed, and then the waterproof material is evenly filled into the road groove, and the waterproof material in the road groove is compacted.

[0065] S4. The raw materials of the subbase 3 are mixed to obtain a uniform mixture. A portion of the mixture is evenly laid on the base layer 1 of the road surface according to the principle of more in the middle and less on both sides. The laid mixture is rolled and compacted repeatedly to form the subbase 3.

[0066] S5. The waterproof layer 4 is laid on the padding layer 3, and the overlap width of the waterproof layer 4 is 30cm to form the waterproof layer 4.

[0067] S6. The mixture of the thin pad layer 5 is evenly laid on the waterproof layer 4 and rolled into shape. Then, pebbles are laid on the mixture and rolled into shape to form the permeable layer 6.

[0068] S7. The wear-resistant surface pad 7 is laid on the permeable layer 6 according to the wheel track of the construction vehicle.

[0069] Fourth embodiment

[0070] Please refer to the following: Figure 4 Based on the water-resistant construction access road structure and construction method provided in the first embodiment of this application, the fourth embodiment of this application proposes another water-resistant construction access road structure and construction method. The fourth embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the fourth embodiment will not affect the separate implementation of the first embodiment.

[0071] Specifically, the fourth embodiment of this application provides a construction method that differs in that it includes the following steps:

[0072] S1. When preparing the waterproof layer 4, first take tailings and mix them with dispersible adhesive powder, gradually heat to 50°C and continue stirring to obtain mixture a;

[0073] S2. When preparing the waterproof layer 4, the aggregate and additives are premixed at a mass ratio of 9:1 for 20 minutes to obtain premix b.

[0074] S3. During the stirring process, the mixer maintains a reaction temperature of 50°C, and the premixed material b is added to the mixture a.

[0075] S4. During the stirring process, the same mass of additive as in step S2 is added to mixture a, and the mixture is stirred at a high speed of 500 r / min.

[0076] S5. During the stirring process, recycled glass fiber, adhesive powder and water are stirred in a ratio of 1:1:1. The product after stirring is mixed with polystyrene particles in a mass ratio of 1:1 and stirred for 20 minutes to obtain mixed particles c.

[0077] S6. During the stirring process, the mixed particles c from step S5 are added to the mixture from the high-speed stirring in step S4, and after stirring for 30 minutes, a fine-particle waterproof material is obtained.

[0078] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A water-resistant construction access road structure, characterized in that, include: grassroots level; A waterproof layer, two waterproof layers are respectively disposed on both sides inside the base layer, the waterproof layer is a rectangular road groove, and the interior is filled with waterproof material for waterproofing; A subbase layer is provided on top of the base layer. A waterproof layer is provided on top of the subbase layer. A thin subbase layer is provided on top of the waterproof layer. A permeable layer is provided on top of the thin subbase layer. A wear-resistant subbase layer is provided on top of the permeable layer. The subbase layer is located between the base layer and the waterproof layer and is in contact with the waterproof layer. The raw materials are round-grained sand and clay mixed in a 3:1 ratio. The waterproof layer is located between the subbase layer and the thin subbase layer. A waterproof blanket made of [material name] is laid. The thin subbase layer is located between the waterproof layer and the permeable layer. The raw materials are round-grained sand and clay mixed in a 3:1 ratio. The permeable layer is located between the thin subbase layer and the wear-resistant subbase layer. The wear-resistant subbase layer is located on the permeable layer, and its width is the wheel track of the construction vehicle. The base layer material is cement-stabilized graded crushed stone, with a laying thickness of 55-60 cm; The construction of the waterproof layer includes a roadbed with a width of 60cm and a depth of 50cm, with the roadbed spacing set at 6m for two lanes and 4m for one lane. The waterproof layer is a mixture of tailings and recycled glass fiber. The waterproof material is evenly filled into the roadbed and compacted. During the fabrication of the cushion layer, the raw materials are mixed to obtain a uniform mixture, which is a mixture of round sand and clay in a mass ratio of 3:

1. A portion of the mixture is evenly laid on the base layer according to the principle of more in the middle and less on the sides. The cross-sectional slope of the cushion layer is 2%~3%. The laid mixture is rolled and shaped to form the cushion layer with a thickness of 4-7 cm. The waterproof layer is a waterproof blanket laid on the padding layer to form waterproofing. The waterproof blanket is made of graded natural sodium-based bentonite particles and corresponding additives as raw materials. The bentonite particles are fixed between the geotextile and the plastic woven fabric through needle punching process and equipment to make a blanket-shaped waterproof roll with a weight of 4000g. The thin pad layer is made from the remaining uniform mixture used in the production of the pad layer. The mixture is evenly spread on the waterproof layer and rolled to form a thin pad with a thickness of 3-5 cm. The permeable layer is made of pebbles with a particle size of 5-25mm. The pebbles are laid on the mixture and compacted. The thickness of the permeable layer is 5-8 cm. The wear-resistant pad layer has a height of 1cm and a width of 50cm, and is laid on the permeable layer according to the wheel track of the construction vehicle. The cushion layer contains multiple steel pipes, each with a permeable hole at the top and a permeable membrane inside. Drainage pipes are installed on both sides of the outer surface of the steel pipes.

2. A construction method for the water-resistant construction access road structure as described in claim 1, characterized in that, Includes the following steps: S1. Before the base course is filled, the construction site is laid out and leveled. After the clearing is completed, the construction site is compacted. After the compaction degree is qualified, cement-stabilized crushed stone is laid. A roadbed with a width of 60cm and a depth of 50cm is reserved in advance. After cyclic compaction, the base course elevation and compaction degree are reached as designed, and then the next process is carried out. S2. The base construction reserves a road trench with a width of 60cm and a depth of 50cm. The base spacing is set at 6m for two lanes and 4m for one lane. The specific method is to measure and lay out the base during construction. When the base layer is compacted to 5cm, lay out 2.3m or 3.3m from the center line of the road to the left and right sides, and place a pure steel mold with a length of 5m, a width of 60cm and a height of 50cm. S3. After the base layer is compacted, remove the pure steel mold, then fill the waterproof material evenly into the roadbed, and compact the waterproof material in the roadbed. S4. The raw materials of the subbase are mixed to obtain a uniform mixture. A portion of the mixture is evenly laid on the base layer of the road surface according to the principle of more in the middle and less on both sides. The laid mixture is rolled and compacted repeatedly to form the subbase. S5. The waterproof layer is laid on the padding layer, and the overlap width of the waterproof layer is 30 cm to form the waterproof layer; S6. The mixture of the thin pad layer is evenly laid on the waterproof layer and rolled into shape. Then, pebbles are laid on the mixture and rolled into shape to form the permeable layer. S7. The wear-resistant surface pad is laid on the permeable layer according to the wheel track of the construction vehicle.

Citation Information

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