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水利水电工程“超概”情况较为普遍、幅度也比较大,分析其原因主要为:①物价上涨;②国家政策性调整;③设计方案变更;④水库淹赔;⑤银行贷款利息变化等。不同年代,各种因素造成的投资增加占投资增加总额的比例不同,但90年代后,设计方案变更所占的比例较大。为此,应加强水利水电工程项目的勘测设计工作;加强建设管理,把概算管理工作贯穿于工程实施的整个过程,明确调概责任;完善修改概算的办法;加强前期经费的投入。
Water conservancy and hydropower project “overprovision ” situation is more common, the magnitude is relatively large, the analysis of the main reasons: ① price increases; ② national policy adjustment; ③ design changes; ④ reservoir flooding; ⑤ bank loan interest changes . In different years, the ratio of the increase in investment caused by various factors to the total increase in investment is different, but after the 1990s, the proportion of design changes has been large. Therefore, the survey and design work of water conservancy and hydropower projects should be strengthened; the construction management should be strengthened, the budgetary estimate management should be carried out throughout the whole process of project implementation, the responsibilities should be clearly defined, the methods of revising estimates should be improved, and the input of prior period funds should be strengthened.