IS 12070 -1987 Code Book PDF free download
This Indian Standard was adopted by the Bureau of Indian Standards on 30 April 1987, after the draft finalized by the Rock Mechanics Sectional Committee had been approved by the Civil Engineering Division Council. Shallow foundation cover such type of foundation in which load transfering is through direct bearing pressure of bearing strata and is normally up to 3 m from natural ground level. Rock is usually recognised as the best foundation material. However, design engineers should be aware of the dangers associated with hetrogeneity and unfavourable rock conditions since over stressing a rock foundation may result in large differential settlements or perhaps sudden failure. Therefore, a separate code covering shallow foundation on rock has been formulated. For the purpose of deciding whether a particular requirement of this’ standard is complied with, the final value, observed or calculated, expressing the result of a test of analysis, shall be rounded off in accordance w~ith IS : 2-1960*. The number of significant places retained in the rounded off value should-be the same as that of the specified value in this standard.
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