a)Explain and Identifythe earthwork activities carried out when performing, deepexcavation and cuttings. The works must be identify the locationfor public utility given by public utility provider. You mustillustrate and explain the different type of plants used duringexcavation, supporting system and falsework required to provide insafe working environment in various sub-soils condition.
b)Describe differenttype of methods for controlling groundwater. You must describe arange of methods of groundwater control during the deep excavation,for example sump pumping, dewatering and land drainage.
