SOME PROBLEMS IN DESIGN AND CONSTRUCTION OF WELL FOUNDATIONS

Abstract

In India, well found?tions are generally adopted for all types of bridges and pump housds except where favourable condi-tions exist for open or pile foundation. In view of the wealth of expertise available for sinking of well foundations, they are popularly in use. However, the design and consturction of well foundation involves many problems. At present the depth of embedment of well foundation, in cohesionless soils, subjected to combined action of vertical and lateral load is analyzed by the methods suggested by Terzaghi (1943), Fender (1947), Menard (1962), IRC: 45 (1972), These theories consider two-dimensional case of three-dimensional problen and are based on 11nmi' stress-strain characteristics of soil. But in reality the stress- strain behaviour of soil surround-ing a well on its sides and bse is non-linear,.....