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Module 6 : Design of Retaining Structures

Lecture 29 : Braced cuts [ Section 29.3 : Lateral earth Pressure on Sheetings ]


	Non uniform soils
	When the braced cuts passes through the no. of clay layers of both sand and clay, an equivalent value of cohesion & is determined using the following equations( Peck 1943 ):

	Fig- 6.34 Stratified soil
	Where , ,…. are undrained cohesion of layers 1,2,…n and , ,…. are the thickness of layers. .

When the braced cuts passes through the no. of clay layers of both sand and clay, an equivalent value of cohesion & is determined using the following equations( Peck 1943 ):