Estimation the Q-Value and some Mechanics Parameters of Fifth Caves in a Haditha Area to Determine their Suitability for Underground Storage

Abstract

The main purpose of this research is to identify the rock mass quality of fifth caves in the Haditha area using the rock mass quality method, In order to determine the suitable way to support and use them for the purposes of underground storage . The first cave is located in the village of Aloos, the second and third caves are in the Khafajia area, the fourth is in the Barwana area, and the fifth cave is in the Al-Subhani area. The Q system is based on six parameters are direction, spacing, aperture, roughness, and condition of rock mass discontinuities, it also depends on groundwater and RQD ,were determined by geological field study. The rock mass quality in the fifth caves is Fair According to the Q system. Caves can be used for underground storage, but not for all materials, as they can be used for solid materials, as well as by placing steel, plastic or concrete tanks in them. It can also be used in the form of small warehouses because these places are characterized by conditions that differ from the surface conditions in terms of temperature, as they help to provide a sustainable environment due to the use of energy in them and therefore the lack of harmful substances emitted to the atmosphere.