![]() ![]() ![]() The V S profiles were measured before each loading test, and the load-settlement curves were obtained during the tests. To verify the developed method, geotechnical centrifuge tests were carried out. This state-dependent stress-strain relationship was utilized to calculate the settlement of footings based on the theory of elasticity. The corresponding modulus variation was determined by considering the stress level and strain at each depth. Vertical stress increments were determined using two different profiles of the strain influence factor ( I z) proposed in Schmertmann’s method and that calculated from the theory of elasticity. By combining the V S measured in the field and the modulus reduction curve measured in the laboratory, the deformation characteristics of soil can be reliably estimated. The V S was utilized to represent soil stiffness instead of cone tip resistance ( q c) because the V S can be directly related to the small-strain shear modulus. In order to predict the settlement of shallow footings in granular soil, the V S and the concept of Schmertmann’s framework were adopted. Find a library where document is available.The shear wave velocity ( V S) is a key parameter for estimating the deformation characteristics of soil.The discussions are followed by a closure by the authors in which they respond in 2 parts: general considerations applicable to all three discussions and response to the separate points raised by the discussers. Schmertmann describes his experience and case history evidence. Marchetti notes some key issues discussed in the paper, namely those relating to stress path difference effects, potential of predicting settlements by DMT, splitting the NC/OC settlement contributions, use of calibration chamber results, corrections for insertion and stress path, and one-dimensional versus 3-dimensional method of settlement calculation. The discussers Baldi, Bellotti, Ghionna and Jamiolkowski present information that supplements the information presented by the authors on the use of DMT to predict the settlement of shallow foundations. ![]() This is a discussion of a paper of the above title by G.A. ![]()
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