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封闭式掘进工程中的新操作法日本大林组宣布研究成功一项新的“大林式现场浇灌衬砌法”，从而使地下铁道和上、下水道建设中常用的封闭式工程中的混凝土施工达到合理化。按照过去的操作方法，要浇灌三次混凝土才能完成隧道的内壁工程，而新研制的操作方法，只浇灌一次混凝...
New Operation Method in Enclosed Excavation Project Japan’s Daihatsu Group announced the successful study of a new “Daelim-On-Site Watering Lining Method” to rationalize concrete construction in underground railway and enclosed projects commonly used in the construction of sewers and sewers. According to the past operation method, it is necessary to pour three times of concrete to finish the tunnel’s inner wall engineering, and the newly developed operation method is to pour water once to coagulate ...