CONSTRUCTION METHOD OF INSPECTION GALLERY FOR DAM

• Main Authors: SHIRAIWA TADAHIRO, KURIHARA TETSUO, NARITA TADAYOSHI, KAWAHARA TADAO
• Format: Patent
• Language: English
• Published: 24.06.1991
• Subjects: ADHESIVES; CHEMISTRY; DYES; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; POLISHES; SOIL SHIFTING

PURPOSE:To make it possible to construct an inspection gallery with a little manpower in a short period of time by connecting inspection galley connection units in succession to the formation level of an inspection galley for a dam in a dam body. CONSTITUTION:Base plates 1 are welded to insertion reinforcements (b) projecting parallelly to the formation level (a) in the dam body A of a dam. After that, a bearing body 2, in which the lower parts of the base plates 1 are buried, is so driven that the surface 2a of the baring body comes to a lower side than the tops 1a of the base plates 1 by using mortar. Then, inspection galley connection units 3 are suspended on the base plates 1 by a crane and they are continuously pulled nearer each other. Fitting projections 4 of the units 3 are fitted in fitting recesses 5 of adjacent units 3. In addition, coupling bolts are inserted into insertion holes of coupling members 7 in the external edge of the upper wall and the internal edge of the bottom wall from the insides of the units 3, and the coupling members 7 are clamped while pulling the units 3 nearer to construct an inspection galley B.