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Geogrid construction method
Definition of geogrid: two-dimensional grid-like or high-dimensional three-dimensional grid screens made of thermoplastic polymers such as polypropylene and poly *** ethylene through thermoplastics or molding, used as civil engineering It is called geogrid.
I. Classification and Characteristics
Geogrid is a major geosynthetic material. Geogrids are divided into five categories: plastic geogrids, steel-plastic geogrids, fiberglass geogrids, tensile geogrids, and warp-knitted polyester geogrids. Compared with other geosynthetics, it has unique properties and efficacy. Geogrids are often used as reinforcements in reinforced earth structures or composite materials.
: Product features :
强度大、变形小； 1. High strength and small deformation;
蠕变小； 2. Creep is small;
耐腐蚀、寿命长：钢塑土工格栅以塑料材料为保护层，在辅以各种助剂使其具有抗老化、氧化性能，可耐酸、碱、盐等恶劣环境的腐蚀。 3. Corrosion resistance and long service life: The steel plastic geogrid is made of plastic material as a protective layer, supplemented with various additives to make it resistant to aging and oxidation, and can withstand the corrosion of harsh environments such as acid, alkali and salt. 100 年以上的使用需求，且性能优，尺寸稳定性好。 Therefore, the steel-plastic geogrid can meet the needs of various projects for more than 100 years, and has excellent performance and good dimensional stability.
施工方便快捷、周期短、成本低：钢塑土工格栅铺设、搭接、定位容易、平整，避免了重叠交叉，可有效的缩短工程周期，节约工程造价的 10%-50% 。 4.Convenient and fast construction, short cycle and low cost: steel-plastic geogrid can be laid, overlapped, easily positioned and leveled to avoid overlapping and crossing, which can effectively shorten the project cycle and save 10% -50% of the project cost .
Third, engineering application areas:
Soft soil foundation reinforcement for highways, railways, abutments, approach roads, wharves, dams, slag yards, etc., retaining walls and pavement anti-cracking projects.
、强度大、蠕变小、适应各类环境土壤，完全可以满足高等级公路中的高大挡墙使用。 1. High strength, small creep, adapt to various environmental soils, can fully meet the use of tall retaining walls in high-grade highways.
、能有效的提高加筋承载面的嵌锁、咬合作用、极大程度的增强地基的承载力、有效的约束土体的侧向位移，增强地基稳固性能。 2. It can effectively improve the interlocking and bite effect of the reinforced bearing surface, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil, and enhance the stability of the foundation.
、与传统格栅相比更具有强度大、承载力强、抗腐蚀、防老化、摩擦系数大、孔眼均匀、施工方便、使用寿命长。 3. Compared with the traditional grille, it has more strength, bearing capacity, corrosion resistance, aging resistance, large friction coefficient, uniform perforations, convenient construction and long service life.
、更适应于深海作业、堤岸加固，从根本上解决了其他材料做石笼因长期受海水冲蚀而造成的强度低、耐腐蚀性能差、使用寿命短等技术难题。 4. It is more suitable for deep-sea operations and bank reinforcement, and fundamentally solves technical problems such as low strength, poor corrosion resistance, and short service life of gabions made of other materials due to long-term erosion by seawater.
、能有效的避免在施工过程中被机具碾压、破坏而造成的施工损伤 5.It can effectively avoid the construction damage caused by the machine being crushed and damaged during the construction process.
钢塑土工格栅 (2) Steel-plastic geogrid The steel-plastic grid is made of high-strength steel wire and wrapped by high-density polyethylene into high-strength strips. The geosynthetics are formed at right angles according to the plane's warp and weft and formed by ultrasonic welding. The mesh diameter and the number of steel wires can be changed according to the needs of the project The strength of the ribs.
1 、钢塑格栅的拉力由经纬编织的高强钢丝承担，在低应变能力下产生极高的抗拉模量，纵横向肋条协同作用，充分发挥格栅对土体的嵌锁作用。 What are the characteristics of the steel-plastic grille? 1. The tensile force of the steel-plastic grille is borne by the high-strength steel wire braided by warp and weft, which produces a very high tensile modulus under low strain capacity. Interlocking effect.
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