4 - HKU Libraries

-137 -STRUTSCX25H0.75 HWHEREk - iKQ- I~^cQSBi^tH-\SANDSN.C. CLAYS0.25H0-5 HRANKINE COEFFICIENT OF ACTIVEEARTH PRESSURED.25H1THO.C. CLAYSNOTE: WATER AND SURCHARGE LOADINGSSHOULD BE CONSIDERED.la) after Peck, 1969"^^---^___hKSANDO.AH0-2-0.3H-hHARD CLAY I N>4 )0.4 H0.2^0.4SOFT CLAY ( N«4)0-4 H0.4-0.5KtHK = COEFFICIENT OF EARTH PRESSUREN = STANDARD PENETRATION TEST VALUE(b) after Japan Society of Civil Engineers, 1977PRESSURE ENVELOPES FOR INTERNALLYBRACED EXCAVATIONFIGURE 24