勘察规范对我国中小型水库除险加固工程的影响

The impact of investigation specifications on the danger elimination and reinforcement engineering of medium and small reservoirs in China

摘要

针对近年来经加固的中小型水库接连溃坝及发生滑坡等重大险情现象，探讨勘察规范对中小型水库除险加固工程的影响问题。基于我国中小型水库除险加固数据，结合实例分析了勘察规范对中型水库加固工程的影响，比较了《中小型水利水电工程地质勘察规范》(SL 55—2005)与3个规范性文件关于小型水库加固工程勘察规定的区别。结果显示：(1)全国62.4%的中型水库除险加固勘察无适宜的勘察规范，对中型水库除险加固工程的大坝安全产生了深远影响。(2)两个规范性文件与SL 55—2005的个别规定，对全国99.3%小型水库除险加固工程的大坝安全产生了不可估量的深远影响。(3)SL 55—2005并不能保障近期需完成的数百座中型水库除险加固工程的勘察设计质量，1个规范性文件将充分保障正在实施的小型水库加固的工程质量。为保障中小型水库大坝的安全，SL 55—2005亟需修订。

Abstract

Aiming at major dangerous phenomena about medium and small reservoirs that have been reinforced in recent years, and major dangerous situations such as dam-collapsed dams and landslides, the impact of investigation specifications on reinforcement projects on reservoirs have been discussed. Based on the danger elimination and reinforcement data of medium and small reservoirs in our country, the impact of investigation specifications on the reinforcement projects of medium reservoirs through examples, and compares the differences between the Specification of engineering geological investigation for medium-small water conservancy and hydropower development(SL 55—2005) and three normative documents on the investigation regulations for danger elimination and reinforcement of small reservoirs were analyzed. The result show that:(1) 62.4% of the country's reinforcement projects of medium reservoirs without appropriate investigation specifications, it has a profound influence on the dam safety of the reinforcement projects of medium reservoirs.(2) The two normative documents and the individual provisions of SL 55—2005 have had an immeasurable and far-reaching impact on the dam safety of 99.3% of the country's reinforcement projects of small reservoirs.(3) The SL 55—2005 does not guarantee the quality of specification and design for the hundreds of reinforcement projects of medium reservoirs and reinforcement that need to be completed in the near future, one normative document will ensure the quality of the reinforcement of small reservoirs reinforcement in the implementation. The result show that it is urgent to revise and perfect SL 55—2005 to ensure the safety of medium and small reservoirs dams.

关键词

中小型水库 / 除险加固 / 勘察规范 / 工程影响

Key words

medium and small reservoir / danger elimination and reinforcement / investigation specification / engineering influence

Author summay

宋华君(1975—), 男, 高级工程师, 学士, 主要从事岩土工程、工程地质与建筑工程抗浮设防水位论证工作。E-mail: [e-mail]