Cwm Rheidol Phase 2 Works

Descriptions

Requirements of Phase 2 works:, •To design and install a clear drainage path of minimum 300mm clear diameter into the adit as far as rockhead, •Include some form of redundancy (backup) such as twin pipes or equivalent , •Design life 50 years, •Infrastructure to be protected from further roof collapse, •Infrastructure resistant to the chemical and pH characteristics of the mine water, •Stabilisation of the adit roof structure such that further collapses are prevented, •Reconstruction of any adit infrastructure at at the portal to replicate the historical mine portal, •The works at adit 9 will include entry of persons into the adit and /or removal or alteration of mine infrastructure, therefore the works will fall under the Mines Regulations 2014 rather than the Construction Design and Management Regulations 2015