Environmental protection construction method of expressway

A construction method and highway technology, applied in the directions of roads, roads, side ditch/curb stones, etc., can solve the problems of easy icing on the surface, affecting the service life of the road, and easy cracking of the road, so as to improve the operation stability and use. Longevity, preventing freeze-thaw damage to roadbed, and excellent comprehensive performance of highways

Active Publication Date: 2018-12-25
江西赣粤高速公路工程有限责任公司
View PDF6 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the expressway has passed through for a long time, large-tonnage vehicles with a large traffic volume frequently roll over it, causing the force on the middle of the highway to be greater than that on both sides, resulting in uneven force on the highway, and the highway is prone to cracking, and the highway is only The three-layer roadbed structure is prone to pits or even collapse, which will accelerate the aging of the road and affect the service life of the road. Moreover, the road after construction by this road construction method is easy to freeze on the surface in severe cold seasons or cold regions, and the antifreeze effect is poor. , and slippery

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Environmental protection construction method of expressway
  • Environmental protection construction method of expressway
  • Environmental protection construction method of expressway

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the expressway environmental protection construction method that the present embodiment provides, comprises the following steps:

[0043] S1: use a road roller to roll the soil base 1, compact the soil base 1, so that the compaction degree of the soil base 1 is ≥ 95%;

[0044] S2: setting multiple support piles 2 on both sides of the soil base 1, the support piles 2 are steel support piles, and the depth of the support piles 2 driven into the soil base 1 is ≥ 50cm;

[0045] S3: Lay the base cushion 3 on the soil base 1, the material composition and mass ratio of the base cushion 3 are: 45-50% coarse gravel, 25-30% fine gravel, 15-20% silicate Cement, 4-8% water, the size of the coarse gravel is 7cm-11cm, and the size of the fine gravel is 3cm-5cm. After using a concrete mixer to fully mix 45-50% coarse gravel, 25-30% fine gravel, 15-20% Portland cement, and 4-8% water, it is laid on the soil base 1, and the base cushion 3. The material rati...

Embodiment 2

[0061] The difference between this embodiment and Embodiment 1 is that the step S2 of the expressway environmental protection construction method is: drilling and pouring a plurality of support piles 2 on both sides of the soil base 1, and pouring the support piles 2 into the soil base 1 Depth ≥ 50cm. Others are the same as in Example 1.

Embodiment 3

[0062] The further antiskid environmental protection improvement of embodiment 3 superhydrophobic mixed solution:

[0063] Ammonia water is also called ammonia water, the main component is NH 3 ·H 2 O, is an aqueous solution of ammonia, colorless and transparent with a pungent odor. Ammonia has a melting point of -77°C, a boiling point of 36°C, and a density of 0.91g / cm3. Ammonia is easily soluble in water and ethanol. It is volatile and has some alkaline properties. Ammonia water is produced by passing ammonia gas into water. Ammonia is poisonous, irritating and corrosive to eyes, nose and skin, and can suffocate people. The maximum allowable concentration in the air is 30mg / m 3 . It is not good for the environment and worker safety.

[0064] In recent years, traffic safety issues have gradually attracted the attention of all walks of life, and how to improve the anti-slip performance of asphalt pavement in rainy weather has become the focus of current research.

[006...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an environmental protection construction method of an expressway, belonging to the field of highway construction, comprising the following steps: rolling a soil base; arrangingor drilling a plurality of supporting piles on both sides of the soil base; orderly laying a substrate cushion lay, a waterproof cushion layer and a first load-bearing base lay on a soil base layer;laying A tensile steel plate on the first bearing base, and fixedly conencting both sides of a tensile steel plate with the supporting piles through connecting pieces; paving The arch steel plate overthe tensile steel plate, connecting the two sides of the arch steel plate with the connectors, and pouring concrete between the tensile steel plate and the arch steel plate; Laying a second bearing base layer and a superhydrophobic asphalt surface layer on the arch-shaped steel plate in turn; Spraying the superhydrophobic mixture on the superhydrophobic asphalt pavement. The invention discloses an environmental protection construction method of an expressway. After construction, the expressway can carry large-tonnage automobiles for a long time, has extremely strong bearing capacity, and canobtain an expressway with excellent comprehensive performance such as anti-cracking, anti-thin ice, anti-freezing, long service life and the like.

Description

technical field [0001] The invention relates to the field of highway construction, in particular to an environment-friendly construction method for expressways. Background technique [0002] The expressway is a high-grade highway, which can adapt to the annual average day and night passenger car traffic volume of more than 25,000 vehicles, is specially designed for cars to drive at high speed in separate lanes, and all access and exit are controlled. The traffic volume of the expressway is relatively large, so the construction of the expressway The quality directly affects the stability and service life of the road. As an important part of the expressway, the roadbed of the expressway plays the role of bearing the load and transmitting the load to the ground. The quality of the construction of the roadbed directly affects the performance of the road. Because the expressway needs to carry large-tonnage vehicles, And the heavy traffic volume is a great test to the carrying ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/06E01C7/00E01C11/24E01C3/04E01C11/22E01C3/02
CPCE01C3/00E01C3/02E01C3/04E01C3/06E01C7/00E01C11/226E01C11/245
Inventor 成安洪杨昊任盼刘长茂高宇
Owner 江西赣粤高速公路工程有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap