In view of the fact that microscopic liquefaction cannot be equated with the macroscopic one; further, owing to the unsolved difficulties in taking undisturbed samples of sand end in performing laboratory tenting of liquefaction, the author has tried to search after new practical way to assess soil liquefaction potential by macroscopic approach. This paper presents a preliminary study winch can coordinate each other with the laboratory microscopic procedures so as to make more reliable prediction to liquefaction potential and assessment of its seismic effect
