It is an impotent part that plans and selects the place for sand & stone in the planning and the construction order of hydraulics and electric power project on base of concrete dam . . material field choose and receive many kinds of restriction of terms is influence factor a lot of 砂石料场的规划选择是混凝土坝为主体工程的水利水电工程施工组织设计中的重要环节，料场选择受到多种条件的制约，影响因素很多。
