The Aeolian sand is the most abundant material in the desert area, but its engineering property is so bad that it has not been used widely as paving material. 风积沙是沙漠地区最为丰富的物质，由于其工程性质较差，目前仍未被广泛用作沙漠地区公路的铺筑材料。
Accumulating sand can lead to great pressure on top of the grottoes and ponding in the rock mass. 积沙还能造成窟顶巨大压力和岩体积水。
