3 m × 2 m आकार की एक आयताकार नींव सामंजस्यपूर्ण मृदा पर 100 kN/m2 का एकसमान दबाव डालती है। यदि प्रत्यास्थता गुणांक E = 5 × 104 kN/m2 और पॉइसन अनुपात μ = 0.5 दिया गया है, तो लचीली नींव के केंद्र पर तत्काल बैठने (Immediate settlement) का मान क्या होगा? (L/B = 1.5 के लिए प्रभाव गुणांक II = 1.36 लें)

After a certain time lapse, clay A achieved 50% average degree of consolidation (U) and clay B achieved 20% average degree of consolidation. Find the ratio of the coefficient of consolidation of clay A to that of clay B (CvA : CvB). Given time factor Tv = 0.20 for U = 50% and Tv = 0.03 for U = 20%, and both clays have the same drainage path lengths.

A group of nine piles, each 10 m long and 350 mm in diameter, is arranged in a square 3 × 3 pattern in a clay soil of cohesion c = 60 kN/m2. Find the centre-to-centre spacing of the piles for a group efficiency of 1. Neglect end bearing resistance. The adhesion factor α = 1 for both individual pile and group action.