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:白岩洞地下河洞穴系统位于保靖县城东南 7km,为一个复杂的现代地下河型洞穴系统。白岩洞洞穴系统由主洞道和吉库、两岔河、三岔河和铁匠洞等 4条主要支洞构成。主洞道分为白岩洞入口 -三岔河、三岔河 -金塘湾洞冒水处和金塘湾洞冒水处 -金塘湾洞 3段 ,长约5151m,高差 10 4 m,坡降 2 0‰。金塘湾洞冒水处 -金塘湾洞只有一条支洞 ,洞道结构相对简单 ,最枯流量 2 7l/ s(1999年 2月 2 9日 ) ,高程36 3m,能够满足与目前最低的灌溉渠道 (350 m高程 )联网要求。因此 ,建议在金塘湾洞引水 ,设计隧洞长度 330 0 m,取水高程 36 3m ,出口高程352 m。
: The Baiyan Cave underground river cave system is located 7km southeast of Baojing County as a complex modern underground river cave system. The Baiyan cave system consists of four main branch holes, the main tunnel and Jiku, Liangchahe, Sanchahe and blacksmith caves. The main tunnel is divided into Baiyan Cave entrance - Sanchahe, Sanchahe - Jintangwan Cave and Jintang Bay Cave takeoff - Jintangwan Cave 3, length 5151m, elevation 104m, Downhill 20%. There is only one branch hole at Jintang Bay Cave, with only one branch hole in Jintang Bay Cave. The tunnel structure is relatively simple with a maximum flow of 2 7l / s (February 29, 1999) and an elevation of 36 3m, which meets the lowest current Irrigation channels (350 m elevation) networking requirements. Therefore, it is proposed to divert water from Jintang Bay to design a tunnel with a length of 330 m, a water intake elevation of 36 3 m and an exit elevation of 352 m.