Abstract: A theoretical solution for the punching shear strength of a concrete slab is presented. The problem is treated as a three‐dimensional axisymmetrical one, the material being assumed to be rigid‐plastic. A failure criterion ...

Abstract: Horizontal directional drilling (HDD) has become increasingly used for the construction of large diameter (more than 600 mm or 24 in.) pipeline projects throughout China. Due to the large investment of capital and resources, ...