This specification is prepared in accordance with the requirements of Notice on Development and Revision of the First Batch of Energy Industry Standards in 2010 （GNKJ （2010）No.320）.
　　During drafting this specification， the drafting team has conducted extensive researches and investigations， summarized main technical measures for construction safety monitoring of hydropower and water resources projects， and incorporated the latest research results.
　　This specification covers the content of safety monitoring for works including slope excavation， cofferdam， underground works，concrete dam and powerhouse and earth-rockfill dam， and processing and analysis ofmonitoring data.
　　This specification was proposed by China Electricity Council.
　　This specification is under the jurisdiction of the Technical Committee on Standardization of Hydropower Construction in
　　Electric Power Industry.
　　The main drafting organization ofthis specification is Sinohydro Bureau 3 Co.， Ltd.
　　The drafting participants of this specification include China Gezhouba （Group） Corporation and Sinohydro Bureau 15 Co.， Ltd.
　　The main drafters of this specification include Wang Pengyu， Li Lei， Ji Maixing， Xie Kaijun， Chen Guangrong， Xing Hao， Bai Meigang， Li Yongqi， Liu Weidong， Li Xiaoguang， Nan Dawei， Dong Dong， Yue Peng， Ma Jianxun， Zhou Hong， Long Zhiqiang， Guo
　　Qidong， Wang Yong， Peng Chengjun and Yao Hongbing.
　　The mam reviewers of this specification include Zhou Hougui，Mao Yajie， Wang Yi， Zheng Ping， Chu Yuexian， Kang Minghua， Chen Hong， Mei Jinyu， Wu Guoru， Zheng Guibin， Liu Yushan， Cai Qiguang， Shang Hong， Luo Weicheng， Niu Hongli， Wu Gaojian，Yang Chengwen， Wu Xu， Huang Wei， He Xiaoxiong， Tan Kaiyan，Yang Jie， Chen Xugao， Chen Shulian， Luo Lin and Yan Sanyuan.
　　Translated and examined by： Xu Songlin， Chu Yuexian， Liu Dongni， Chen Jiansu， Guo Jie， Li Jingshuang， Wu Guoqiang， Zhang Weichao， Cheng Zhihua， Li Yan， Peng Chengjun， and Che Zhenying.
　　Any opinion or suggestion proposed during the execution of this specification should be sent to the Standardization Center of China
　　Electricity Council at the following address： No.1， Lane 2， Baiguang
　　Road， Beijing， 100761.