In this article we will discuss about:- 1. Origin of Joints 2. Classification of Joints 3. Occurrence of Joints 4. Engineering Considerations for Joints in Rocks. Origin of Joints: Joints are caused in different rocks due to different reasons. No single theory can, explain origin of all types of joints. At present it is agreed that there are at least [...]
In this article we will discuss about:- 1. Definition of Road Aggregates 2. Qualities of Aggregates 3. Common Road Aggregates. Definition of Road Aggregates: Those types of rocks or mineral fragments that can be used as an aggregate material in combination with other natural or artificial materials like cement and bitumen etc. for preparing an ideally suitable road surface may [...]
Rocks may be broadly divided into two categories in relation to tunneling- consolidated and unconsolidated or soft ground. Geological characters that have a direct bearing on a tunnel project will differ almost in all details in these categories. Only a brief account is given below: Consolidated Rocks: This group includes the massive igneous, sedimentary and metamorphic rocks that very often [...]