Bearing Capacity of Karst Cave Roof under Pile Foundation Load Using Limit Analysis

Reducing the computational workload by simplifying analysis of karst foundations into a plane strain problem can yield significant advantages. Yet, such an approach fails in reproducing engineering situation rigorous manner. In this regard, paper proposes upper-bound method that effectively analyze bearing capacity three-dimensional foundations. This is utilized to investigate impact various pile diameters, ratio roof thickness diameter, and cave width diameter on stability The validity established through illustrative example. outcomes illustrate when subjected both tensile compressive horizontal stresses if maximum stress surpasses strength rock mass, mass may suffer damage. Increasing bring down value. factor largely influenced diameter. most prominent growth trend observed less than 3. If exceeds 3, prediction estimation for foundation circumstances more conservative two-dimensional circumstances.