[1]关志伟.水坝工程中强蚀花岗岩的改良研究[J].江苏水利,2018,(02):67-72.
　GUAN Zhiwei.Study on improvement of strong corrosion granite in dam project[J].JIANGSU WATER RESOURCES,2018,(02):67-72.
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水坝工程中强蚀花岗岩的改良研究()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年02期
页码:
67-72
栏目:
工程建设
出版日期:
2018-03-10

文章信息/Info

Title:
Study on improvement of strong corrosion granite in dam project
文章编号:
1007-7839(2018)02-0067-06
作者:
关志伟
新疆水利水电勘测设计研究院，新疆 乌鲁木齐 830000
Author(s):
GUAN Zhiwei
Xinjiang Survey and Design Institute of Water Resources and Hydropower，Urumchi 830000，Xinjiang
关键词:
强蚀变花岗岩; 渗透系数; 压缩系数; 水泥; 生石灰
Keywords:
strong altered granite; permeability coefficient; compression coe fficient; cement; lime
分类号:
TV49
文献标志码:
B
摘要:
选取我国西北某地区水电站坝区内的强蚀变花岗岩作为研究对象，针对强蚀变花岗岩具有经浸水饱和后压缩量增大即遇水软化、强度衰减即水稳定性差等物理及力学性质，不宜直接用于工程坝基填筑需进行改良。设计不同掺灰比，将水泥和生石灰作为改良剂对强蚀变花岗岩进行改良。对比分析改良前后强蚀变花岗岩试样的物理特性，发现两种改良剂均使其各性能得到显著改善。综合对比两种改良剂的性质最后确定最优化改良方案是7% 掺灰比的水泥改良剂。
Abstract:
Select strong corroded granite in the dam area of a hydropower station in a region of northwestern China as the research object. Regarding the strong physical alteration properties of granitic rocks, such as water softening, strength decay, water stability and so on, they should not be directly used for engineering dam foundation filling, and need to be improved. With different ash blending ratios, refine strongly corrosive granite with cement and quicklime as modifiers. By comparing the physical properties of the strongly altered granite samples before and after the improvement, it is found that the two modifiers have significantly improved their properties. Comprehensive comparison of the nature of the two modifiers finally determines that the optimal improvement of the solution is 7% cement quicklime mixed ratio modifier.

参考文献/References:

[1] 张瑞旗.强蚀变花岗岩力学特性及其改良研究[J].华北水利水电大学，2016(03):89 .
[2] 郭健，许模，张强.蚀变花岗岩特性及工程特性研究[J] .甘肃水利水电技术，2009(09):27-29 .
[3] 湛川，李宝玉，张瑞旗，等 ．强蚀变花岗岩坝基填料改良试验[J].人民长江，2017(48):232 .
[4] 方磊，马宏剑 ．掺砂处理全风化花岗岩路基填料室内CBR 试验研究[J].苏州科技学院学报，2016，19(01)：22-25 ．
[5] 武凤远 ．高速铁路花岗岩全风化武填料改良试验研究[J]．路基工程，2014 (0 2): 85-88．
[6] 赵仕杰，冯箻.刘家菁水库大坝安全性分析[J].人民长江，2006(09):27-29 .
[7] DL/T 5395-2007 ，碾压式土石坝设计规范[S] .

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备注/Memo

备注/Memo:
收稿日期：2017-11-03
作者简介：关志伟(1984-)，男，工程师，本科，主要从事工程地质和水文地质研究工作。
更新日期/Last Update: 2018-02-15