Abstract: The relation between horizontal value behind of the diaphgram wall and settlement of the ground behind the diaphgram wall analyzed, based on the field investigation and previous research. Fitting the horizontal displacement with secondary curve, supposing ground settlement curve could be described by normal distribution density function. The maximum ground settlement can be calculate using ground-loss method in every case. And then it is compared to the maximum value measured in the field. The delay effect of creep of the soft soil to the ground settlement is presented.