The use of artificial turf and first appeared in the United States, which is leading the development of the founders of artificial turf, but also soil lawn of Portland. In the United States, most of the artificial turf artificial turf fiber material used is high-grade nylon material, but also the use of multiple fibers, without filling sand artificial turf can be divided into two kinds of water seepage and impermeable. This resembles natural grass lawn in shape, partly with a layer of shock-absorbing foam cushion layer, shock-absorbing layer of a variety of different density and thickness. Since the domestic real grasp of artificial turf laying technology manufacturers is small, and mostly foreign technology, therefore, is not sufficient sand laying artificial turf, especially when laying shock-absorbing foam cushion layer must be done by foreign experts. Shock-absorbing foam bottom layer of smooth asphalt to be used as the basis, but also covered with asphalt beneath gravel, sand and gravel as a base, constructed drainage system which is the most critical part. In addition, this type of artificial turf in the installation process must use artificial turf special machinery, is particularly important, especially in a number of professional sports venues or costly laying of installation, otherwise it will not meet the requirements of site leveling and evenness such as the 2008 Olympic hockey hockey field and part of the training grounds of Beijing Lu City Sports technology Institute in order to meet the special needs of portable artificial grass, artificial grass and other venues pieces must be in strict accordance with the above requirements for construction.