1. Overview of three-dimensional geomesh mats.
Three-dimensional geomesh mat is a three-dimensional structure of geosynthetics, which is similar in appearance to a loofah, also known as "loofah mat". The three-dimensional geonet mat is made of multi-layer plastic flat wire woven to form a three-dimensional structure of the network structure, which has sufficient tensile strength and compressive strength, can withstand the heavy pressure and friction in the construction process, and has good flexibility and can adapt to the deformation of the foundation.
Second, the application field of three-dimensional geonet mat.
1.Slope protection: three-dimensional geonet mat can be used in slope protection engineering, by laying three-dimensional geonet mat on the slope surface, the soil can be effectively fixed, prevent soil erosion, and at the same time can increase the anti-erosion ability of the slope surface, improve the stability of the slope.
2.River governance: In the river treatment project, the three-dimensional geonet mat can be used in the bank protection project, and the three-dimensional geonet mat can be effectively prevented from collapsing the river bank and protect the safety of the river by laying the three-dimensional geonet mat on both sides of the river.
3.Land reclamation: In land reclamation projects, three-dimensional geonet mats can be used in soil stabilization and vegetation restoration projects, and by laying three-dimensional geonet mats on the reclaimed land, the soil can be effectively fixed, soil fertility can be improved, and vegetation growth can be promoted.
4.Road engineering: In road engineering, the three-dimensional geonet mat can be used in the subgrade reinforcement project, and the bearing capacity and stability of the subgrade can be effectively improved by laying the three-dimensional geonet mat at the bottom of the subgrade.
Third, the construction technology of three-dimensional geonet mat.
1.Preparation before construction: Before laying the three-dimensional geomesh mat, the construction site needs to be cleaned and leveled to ensure that there are no obstacles and debris. At the same time, it is necessary to confirm that the specifications, quality and quantity of the three-dimensional geomesh mat meet the design requirements.
2.Laying method: according to the design requirements and the actual situation to choose the appropriate laying method, generally can be used manual laying or mechanical laying. During the laying process, it is necessary to ensure that the three-dimensional geomesh mat fits tightly with the lower layer to avoid wrinkles or overhangs.
3.Fixing measures: In order to prevent the three-dimensional geonet mat from shifting or sliding during construction and use, necessary fixing measures are required. Generally, the three-dimensional geonet mat can be fixed together with the lower layer by anchoring rods, pile foundations and other fixing methods.
4.Filling and compaction: After laying and fixing, filling and compaction work is required. The filling material should be selected to meet the requirements of sand and gravel or other suitable fillers, and the compaction machinery should choose the appropriate compaction method according to the actual situation.
5.Monitoring and maintenance: Necessary monitoring and maintenance work is required in the process of construction and use, including real-time monitoring of the displacement and settlement of the three-dimensional geonet pad, as well as timely repair and maintenance of possible damage, aging and other problems.
Fourth, the advantages of three-dimensional geonet mats.
1.Strong adaptability: The three-dimensional geonet mat has good flexibility and adaptability, which can adapt to the deformation and stress changes of the foundation, and effectively reduce the incidence of uneven settlement.
2.Good protective effect: The three-dimensional geonet mat has good tensile strength and compressive strength, which can effectively fix the soil, prevent soil erosion and improve the erosion resistance of the slope surface.
3.Simple construction: The laying and fixing process of three-dimensional geonet mat is relatively simple, does not require special mechanical equipment and technical requirements, and can greatly shorten the construction period and reduce the project cost.
4.Reusable: The material of the three-dimensional geonet mat has a long service life, and can be reused after use, which is conducive to environmental protection and sustainable development.