一项为了纽芬兰的圣约翰斯市附近的港口和道路建设的、采用骨料开采的特殊方式进行的开发地下空间和开采岩石的计划,已得到加拿大联邦、省以及本地政府当局的批准。它的批准就为1982年初期一项数百万美元的总体工程计划的实施铺平了道路,同年后期将进行一项示范工程。该工程是由纽芬兰的采矿工程师托马斯·凯尔温思(Thomas Kierans)设计的,它将 A plan for the development of underground space and rock extraction in a special way of using aggregates for the construction of ports and roads near St. John’s, Newfoundland, has been approved by the Canadian federal, provincial and local government authorities. Its approval paved the way for the implementation of a multi-million dollar overall project plan in early 1982 and a demonstration project will be carried out later that year. The project was designed by Thomas Kierans, a mining engineer in Newfoundland, and it will