Sheng Li reached for plastic composite geogrid improved plastic composite geogrid production technology strength, creep, high capacity, non-corrosive, anti-aging, pattern friction coefficient, hole uniform, convenient construction, life-long series of features, the majority of the construction unit welcome, has played a very big importance, as the main materials of construction of many. Sheng Li reached Feicheng Engineering Materials Co., Ltd. of plastic composite geogrid improved production processes, in addition to reflecting the performance of reinforced cushion in the above capacity, the key point is to look for soil disturbance. Plastic Geogrid convex node sections, settling mainly in the gravel layer and sand settlement only less than 30% of the total settlement, indicating minimal disturbance of the sand. The main role of stress in the top surface of the sand layer diffusion within the angular range of 45 degrees, which is the use of the design of a 45-degree angle diffusion calculations coincide reinforced cushion. After the foundation bearing capacity of reinforced varying degrees of improvement, but the dominance punching stretch geogrid type is more obvious, especially steel geogrid convex node, due to its special triangular mesh rendering, the degree of improvement particularly prominent. Compared with non-reinforced solutions. Ultimate bearing capacity can be increased by about 35%. We, as a professional geotechnical materials production-oriented enterprises, professional geotechnical materials production equipment, testing equipment and advanced production technology, in the years of the development process, plastic composite geogrid wide range of applications, many large Project indispensable geotextile products, but this product is our company's effort to build a high technology content, good quality of high-quality products, welcome to buy construction units. Plastic Geogrid in slope protection and tunnel support, by the engineering attention. Plastic Geogrid has high strength, deformation, corrosion resistance, easy construction, etc., can greatly overcome the previous reinforced network for slope protection and initial tunnel Supporting the deficiencies. Based on laboratory experiments, numerical analysis method, steel geogrid in slope protection and tunnel support in the application of technology has been studied. Because Geosynthetics is a typical ductile materials, only tension, not compression. Therefore, in order to facilitate the analysis of the added steel geogrid shotcrete tunnel initial support finite element analysis of reinforced-plastic material constitutive model that can be set-plastic reinforcement stress-strain relationship is linear elastic. The main analysis of initial stress and deformation of tunnel support shotcrete after adding steel geogrid. Through numerical simulation analysis, Plastic net bolt spacing for engineering practice to provide guidance based on the actual project. Sheng Li reached Feicheng Engineering Materials Co. plastic composite geogrid in very harsh environments more suitable plastic composite geogrid deformation modulus, high tensile strength, self-willed, light weight, corrosion resistance, anti-aging, Strong interaction between the soil, thereby improving the binding properties of the substrate and the soil between the maximum extent. Plastic composite geogrid we applied in the construction of the highway network of geotextile material is flat, it plays a major role in road construction can be fixed to make the foundation of the stress force uniform, effective in reducing the uneven ground foundation settlement problems occur occur. Through years of using the effect, steel geogrid has fully replaced the original steel reinforcement role in the foundation and steel geogrid reinforcement of the role of more than steel, and more product features. Reduce its high tensile strength to the maximum extent of ground deformation, to protect the stability of the road embankment, use even in very harsh environments it can also play a role in the highest. I produced geogrid products are mainly used in industry, agriculture, metallurgy, construction, water conservancy, port, municipal, railway, highway, airport, mines and the like retaining walls, slope, embankment protection and reinforced Soft handle, quality, reasonable prices, the majority of the construction unit a good choice, and sincerely welcome calls, the communication consulting, negotiate! Supporting the early-plastic net maximum force should be at the top of the tunnel between the level of the site. Therefore, in order to facilitate the analysis and based on conservative safety considerations, the paper established Tunnel Lining Plastic Geogrid Shotcrete plus level analysis model. Its constraint is considered layer (on the integrity of surrounding rock for concrete injection layer of crushed surrounding rock is broken layer) on top and bolt in the thickness range of applied fully constrained, given layer underside freedom. When analyzed by appropriate changes bolt spacing, and depending on the surrounding rock types, the analysis by comparing a variety of factors, a reasonable bolt spacing for engineering practice. For the integrity of the surrounding rock sound, after which the tunnel excavation, surrounding rock itself remains stable. Plastic Geogrid role is only to keep shotcrete under its own weight and remain stable in its consolidation phase, and well attached to the surface of the surrounding rock will not fall off. Because the top of the tunnel cross-section of the arc, when the bolt spacing is too large, the thickness of the concrete will jet serious lack of coordination, especially the middle two bolts are not well fixed to the shotcrete played with restraint effect, it proposal in the tunnel cross-section direction, the anchor bolt spacing should be less than the vertical spacing, cross-sectional direction of the bolt spacing should be based on different radius curved tunnel specific circumstances. Plastic Geogrid What are the advantages? 1, the cost of the province - through a number of project examples prove that this material is constructed with reinforced soil engineering and traditional way to build a similar project compared to the cost savings of 10% -50%. [Plastic Geogrid convex node 2, Rally - per meter vertical and horizontal tensile yield strength can reach 20-150KN, through transportation, railway, water conservancy and three product Quality Supervision and Inspection Center. 3, the effect is good - cast convex grille mesh node structure, and enhance the role of the grille with interlocking engagement rock, and could restrain lateral displacement of soil, and enhance the foundation bearing capacity, reduce the overall settlement of the soil and improve uneven soil settlement, and enhance the overall performance based, and can prevent surface cracking. 4, small deformation - Plastic Geogrid convex node yield elongation ≤3%; convex plastic geogrid node yield elongation ≤10%. 5, the high junction strength - this product is cast convex node connection with vertical and horizontal ribs constitute grille, its high junction strength, shear strength of welded grid nodes ≥1.5MPa, convex grille node node limit peel force ≥300N. 6, convenient construction - laying grille, positioning is extremely simple, easy and smooth. Width 2m-4m, fewer joints, can be worn lock connection, short construction period. 7, long life - Plastic is a material to protect high-strength steel, and also force the plastic grille material, it has acid, alkali, salt corrosion chemistry, scientific formula with anti-aging, anti-oxidant properties. Applicable to all types of permanent works, the service life of up to a hundred years or more. Our adherence to the "credibility of survival, quality and development," the operating principles, and established international practice of corporate governance structure, the formation of the scientific enterprise decision-making system and flexible and effective corporate incentive and restraint mechanisms, ongoing enterprise system innovation to adapt to the fierce market competition at home and abroad. Mission: credibility first, honest-based, customer first, quality assurance, abide by the contract