Welding practice to master the operating procedures, familiar with the welding performance, based on similar projects selected test welding materials, depending on the material thickness, ambient temperature, operating temperature and adjust the welding seam welding strength requirements creep speed and the heating temperature, the preselected appropriate construction process parameters. And require all personnel involved in the construction of the construction site must wear soft-soled shoes, non-smoking, in order to avoid damage to the geomembrane, geotextile, geomembrane. To check the quality of the surface before laying the foundation layer, the requirements of the base layer surface smooth, sharp objects allowed to have a hard block, plant roots and other hard objects where the production of composite geotextile fabric to prevent damage to the geomembrane. Vertical positioning for laying laying Sloppy seepage along the body from the crest to toe; horizontal impervious body laid out by the toe end of the laying; attention should lay moderate relaxation, to avoid stress concentration and man-made damage, and to ask geomembrane must coincide with the primary joint surface smooth wrinkles and uneven allowed gap. For paved sides geomembrane geomembrane or check jagged to be repaired, while the membrane surface of the sand \ contaminants clean, keep clean, to welding. Filament geotextile overlapping manner where there is stress? For filament geotextile, its installation is very particular, commonly used methods include lap, sewing and welding and other types. The way in which the lap is more commonly used, the following lap ways to give you an analysis about: filament geotextile overlapping methods are described below: First, to understand the filament geotextile lap width and construction of the ground itself The basic situation of a great relationship, so we must be based on detailed analysis of the actual situation, for the flat ground, we recommend using the lap width of 20cm, on the basis of uneven or soft soil area in the longitudinal direction of the lap width 30cm. On any sewn filament geotextile "drain pin" must be re-stitched in the affected areas. Must take appropriate measures to avoid after installation, soil, particulate matter or foreign substances into the geotextile layer. Lap cloth according to the terrain and the use of natural features can be divided into lap, stitched or welded. Geotextile river channel in the discharged water rivers flowing through the channel process called river channel. Because the water in different seasons of different sizes, so the dry river channel is divided into the river shoot, the river and flooding river channel grid. The dry riverbed of the dry season flow channel, an narrow and deep, and the relatively stable; the cloth in water and soil in the river channel to the river channel occurs when water, also known as the main channel composite geotextile fabric how much a square meter, depth large, rough slaughter small, large erosion intensity, flood vent mainly rely on water river channel. Its corresponding flow of traffic seen as making the bed; river channel to vent rivers flood flood channel, river channel width, flow, in the plains, are generally based on the design in the construction of embankments on both sides of the river, the river channel flood control dike between the two sides. (2) geotextiles mainstream line linking the largest rivers in the velocity of flow of the river is called the power curve axis, geotextiles, also known as river flood control basics mainstream line * Ting River mainstream lines in flood water, the dry season is not all same composite geotextile, flood the river near the center section of the main line. (3) geotextiles deep river channel to connect each section line of said maximum depth soundings along the creek line known. Rivers corners, deep partial flood line near the concave bank; between two bends, deep rejection of the transition from one line to the other concave concave bank shore. Rivers and river bottom surface slope gradient were measured along the line along the deep o (4) of beach and river flow interaction in composite geotextile construction, river channel is often an accumulation of various shapes. These deposits as connected with the bank, when the flood, when the dry outcropping known as a beach, also known as beach side. Jiang river plain area beaches and some can be cultivated farmland, so also known rivers. (5) in order to restrict the flow of geotextile dikes and flood defense, attack waves, tides, in rivers, lakes, coastal sea water retaining structures called dike construction. One square meter of new materials _ Edison (certified) _ Langfang composite geotextile by how much Edison New Materials Co., composite geotextile. Edison New Materials Co., Ltd. (www.fangshenmo.com) Shandong Texas, site construction materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. New material in Edison led the staff warmly welcome all inquiries negotiations to create new materials Edison a better future.