Tutorial 15 - Composite Liner Tutorial

This tutorial describes the support of an underground cavern using composite liners. A Composite Liner in Phase2, is a liner which may consist of multiple layers of material. The different layers of a Composite Liner may have different material properties, and may be applied at different stages. A joint may also be included in the Composite Liner, between the rock mass and the first layer, or between any two consecutive layers.

There are a total of four stages in this simulation. The cavern will be excavated in three stages. After each excavation, shotcrete is added for support. A layer of concrete is added one stage after each shotcrete layer, to form a composite liner.

Composite Liners (click to view PDF file of tutorial)

Topics Covered in this Tutorial

Composite Liner (two layers) applied to excavation boundary