In the 1960s and 1970s, the design of filament geotextile filter geotextile, a group that the decision to be protected several major soil hydraulic properties and fabric. Such as soil particle size and permeability of the fabric pore size, permeability, open area, such as c 7L where soil particle size and fabric 7L diameter plays a decisive role. People have made reference to the classical design principles pellets filtration through test analysis and proposed a different design criteria, in accordance with the characteristics of soil particle size aperture choice of fabric. About fabric aperture test method, used for the initial screening method or wet sieving. Since 1977 D. Yang M, Chen proposed to create dynamic water sieve method, in recent years has been used by many other countries. For fabric aperture design. Since the 1970s, not of the experts consider more factors: such as being protected soil particle size distribution, uneven degree of compactness, teaching, etc.; seepage flow state - laminar or turbulent flow; seepage direction - one or both directions, with identical or opposite to the direction of gravity; openings of the fabric, thickness, staple fiber geotextile structure, as well as the forces quality short wire geotextiles, etc., made more complex Push the design and make a long-term laboratory and prototype observation of the best short silk geotextile to verify the accuracy of these guidelines. But has yet to agree a recognized pattern. Permeable fabric is also pushing a similar situation. In view of the comments on the design criteria of divergence, thus filament geotextile Some experts suggested by the test to select fabric, namely the use of protected territories and fabric filter simulation tests to determine whether the fabric is able to meet the requirements. 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 occur in the river channel to channel the river water is also known as the main channel, depth big, rough slaughter small, red silt strength, 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 period of the flood of mainstream line near the River Center. (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 all measured o (4) of beach in the water and riverbed interaction, often forming a river channel deposits of various shapes along deep along. 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. Practical short silk geotextile | Edison new materials (certified) | Baotou short silk geotextile material provided by the new Edison Company. 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.