Geotextile
Application of Geosynthetics in Traffic Engineering
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- Time of issue:2020-10-29
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(Summary description)There are many ways to apply geosynthetics to the section of the road, the purpose of which is to make the road have better performance and longer service life
Application of Geosynthetics in Traffic Engineering
(Summary description)There are many ways to apply geosynthetics to the section of the road, the purpose of which is to make the road have better performance and longer service life
- Categories:Industry news
- Author:
- Origin:
- Time of issue:2020-10-29
- Views:0
Information
1. Improve the road
There are many ways to apply geosynthetics to the section of the road, the purpose of which is to make the road have better performance and longer service life, or both. When geotextiles and geogrids are used in different parts of the road, the functions of geosynthetics are:
Geotextiles are used for the isolation and reinforcement of embankments and roadbeds;
Geogrid is used for the reinforcement of embankment and roadbed;
Geogrid is used for lateral reinforcement inside the embankment.
The latest development in this area is the addition of continuous fibers in the subgrade construction process. Similarly, microgrids can also be used for paving. Someone has conducted indoor and field tests in this regard. So far, the biggest success has been the application of dispersed fibers (typically polypropylene) to gravel roadbeds.
The future development is to use geosynthetics to treat the holes in the roadbed. In this method, a wick drain is set in the hole, a needle-punched non-woven fabric is laid on the wick drain, and then backfilled with fiber reinforced soil. This method is very promising and needs to be tested on site.
2. No groove pipe repair
The urban infrastructure is constantly aging, and the building materials have a history of hundreds of years. The use of trenchless technology for maintenance is an emerging industry, and all use polymeric materials.
Because the current methods have reduced the size of the original pipe network, the current progress is to squeeze the original pipe with a high-pressure probe to enlarge the diameter. Then, quickly insert the new pipe and line it. In this way, the capacity of the original pipeline is not reduced. In some cases, the diameter of the pipe is also enlarged.
The difficulty of the current non-groove pipeline maintenance is that it cannot form lateral contact and forms a lateral free leakage point. In the future, this difficulty may be solved by the remote control device in the slitting system, which can not only pass through the new pipeline, but also achieve perfect lateral contact through the following robot.
3. Soil and Water Conservation System
Soil erosion affects the use of land and farmland, and is also one of the causes of water pollution. In order to control, reduce and avoid soil erosion, many soil erosion control methods related to geosynthetics have been adopted.
A possible future development is the use of high-strength geosynthetic grids (high-strength geotextiles or geogrids) to prevent avalanches. The key to the problem is to estimate the force, position and arrangement of the grid and anchoring materials, as well as the overload sensing in very climatic environments.
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