Foreword

This code is prepared by Guangdong Electric Power Design Institute and Electric Power Planning and Engineering Institute in collaboration with associated organizations as required by the Notice on Printing and Distributing the Development and Revision Plan of National Standards for Engineering Construction in 2007（JB〔2007〕No.126）issued by the former Ministry of Construction.

This code has been developed based on wide investigations and studies，serious sum-up of experience，reference to the related international and national standards，and extensive consultations，and finalized after review.

This code is organized into 10 chapters with 15 appendices，mainly including:General，Terms，Symbols and Codes，Horizontal Control Survey，Vertical Control Survey，Topographic Survey，Digital Photogrammetry，Satellite Remote SensingSurvey，Construction Survey，Deformation Monitoring，and Other Surveys.

In this code，the articles in bold type are compulsory provisions and must be enforced strictly.This code is administered by Ministry of Housing and Urban-Rural Development of the People's Republic of China which will be responsible for the interpretation of compulsory articles.China Electricity Council is responsible for its daily management，and Guangdong Electric Power Design Institute is responsible for the interpretation of specific technical issues therein.Any comments or suggestions raised during the implementation of this code are to be referred to Guangdong Electric Power Design Institute（at the address:No.1，Tianfeng Road，Guangzhou Science City，Guangdong Province，510663）for reference in the future revisions.

The Chief drafting organizations，participants，leading authors and main reviewers are as follows:

Chief Drafting Organizations:

Guangdong Electric Power Design Institute

Electric Power Planning and Engineering Institute

Participants in Drafting:

East China Electric Power Design Institute

China Nuclear Power Engineering Co.，Ltd（the former Beijing Institute of Nuclear Engineering）

Northeast China Electric Power Design Institute

Shandong Electric Power Engineering Consulting Institute Corp.，Ltd

North China Power Engineering（Beijing）Co.，Ltd

Central Southern China Electric Power Design Institute

Southwest China Electric Power Design Institute

Leading Authors:

Zhang Xiaowang　Yao Qilin　Yin Jinhua　Wang Xuhong

Xue Yandong　Chang Zengliang　Cao Yuming　Wang Shengzu

Deng Jiana　Liu Lin　Dai Hongbo　Liu Xiaoqing

Lei Weigang

Main Reviewers:

Kong Xiangyuan　TianYangquan　Yin Hongbin　Li Guangye

Liu Guangming　Wu Jianyang　Chen Maibo　He Guangyuan

Ma Tianqin　Zhou Meiyu　Chen Yaming　Shi Keqin

Hu Maolin　Wang Cong　Tan Guoquan　Chai Xiuwei