Question
Download Solution PDFरेकी के सूत्र के अनुसार नीव की न्यूनतम गहराई, जब q = 180 kN/m2, γ = 20 kN/m3 तथा ϕ = 30° है -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
रैंकी का सूत्र मृदा की धारण क्षमता के आधार पर नींव की न्यूनतम गहराई पर मार्गदर्शन प्रदान करता है।
\(q_u={\gamma } {D_f}\left( {\frac{{1 +\sin \varphi }}{{1 - \sin \varphi }}} \right)^2\)
इस प्रकार नींव की गहराई को निम्न रुप से व्यक्त किया जा सकता है,
\(D_f = \frac{q_u}{\gamma }\left( {\frac{{1 - \sin ϕ }}{{1 + \sin ϕ }}} \right)^2\)
जहाँ Df = नींव की न्यूनतम गहराई, qu = मृदा की चरण धारण क्षमता
गणना:
भारण की तीव्रता(qu) =180 kN/m2,
इकाई भार= 20 kN/m3 और आंतरिक घर्षण कोण (ϕ) = 30°
नींंव की गहराई = \(D_f = \frac{180}{20 }\left( {\frac{{1 - \sin 30° }}{{1 + \sin 30° }}} \right)^2\)
नींंव की गहराई (Df) = 1.0 m
इसलिए, रैंकी के सूत्र के अनुसार, नींव की न्यूनतम गहराई 1.0 मीटर है।
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