Laiwu of Shandong geotextile material Ltd. is specialized in producing waterproof membrane brand manufacturers, the company advanced equipment, technical skills, has a wealth of experience in manufacturing and construction. In this paper, as we explain the basic requirements of underground engineering. (A) design of underground works should follow to prevent the main, basic principles, supplemented by row, according to local conditions, advanced design, waterproof, reliable, economical and reasonable. Upon request fortified underground waterproofing table design. (B) the general design of underground works, water pressure or from the external walls of the main anti-water effect, do waterproof outer membrane (ie positive side processing), waterproof membrane practices, in accordance with the relevant provisions of the State Construction. (Iii) underground engineering more complex, we must understand the underground soil, water and the water table case design, design effective fortification take to ensure water quality. (D) In ??the underground water level above the highest ground floor, underground design should consider the overall reinforced concrete structure, ensure water effect. (E) to determine the level of underground fortifications, the highest water level elevation based on survey information provided, together with 500mm of maximum security level, the upper part can be done to deal with moisture, surface water underground water by security design. (F) underground water, according to the actual situation, can be flexible or rigid waterproof waterproof, if necessary, use rigid-flexible waterproof solution. Under special requirements, you can use the overhead, double-walled fortification walls and other multi-channel programs. (Vii) underground and outdoor water Faces, outer anti-paste method can be conditionally into outer outer anti-paste method of construction. (Viii) the protection of underground waterproof outer layer, a protective layer may take a soft, such as polystyrene panels. (Ix) For special parts, such as deformation joint, construction joints, wall pipe, buried pieces of other weak links to be designed according to the requirements for detailed treatment. Basic requirements for the design of underground works for everyone introduced here, hoping to help you. For more information, please visit waterproofing membrane my company's official website.