长江科学院院报
長江科學院院報
장강과학원원보
JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE
2010年
3期
46-49
,共4页
亭子口电站%层状岩体%变形试验%曲线特征
亭子口電站%層狀巖體%變形試驗%麯線特徵
정자구전참%층상암체%변형시험%곡선특정
Tingzikou Power Station%layer rockmass%deformation test%curve characteristic
通过对亭子口水利枢纽工程坝基下卧的黏土岩、粉砂岩、长石石英砂岩和岩屑砂岩等4种主要岩性的岩体变形试验曲线特征进行分析,认为:厚层岩屑砂岩的试验变形量主要来自于岩石晶格错动变形,长石石英砂岩的试验变形量主要为岩石内孔隙和空隙变形以及岩石晶格错动产生的变形,而层理较发育的薄层黏土岩和粉砂岩的试验变形量主要由层间压缩变形、岩石内孔隙和空隙变形以及岩石晶格错动产生的变形共同组成.
通過對亭子口水利樞紐工程壩基下臥的黏土巖、粉砂巖、長石石英砂巖和巖屑砂巖等4種主要巖性的巖體變形試驗麯線特徵進行分析,認為:厚層巖屑砂巖的試驗變形量主要來自于巖石晶格錯動變形,長石石英砂巖的試驗變形量主要為巖石內孔隙和空隙變形以及巖石晶格錯動產生的變形,而層理較髮育的薄層黏土巖和粉砂巖的試驗變形量主要由層間壓縮變形、巖石內孔隙和空隙變形以及巖石晶格錯動產生的變形共同組成.
통과대정자구수리추뉴공정패기하와적점토암、분사암、장석석영사암화암설사암등4충주요암성적암체변형시험곡선특정진행분석,인위:후층암설사암적시험변형량주요래자우암석정격착동변형,장석석영사암적시험변형량주요위암석내공극화공극변형이급암석정격착동산생적변형,이층리교발육적박층점토암화분사암적시험변형량주요유층간압축변형、암석내공극화공극변형이급암석정격착동산생적변형공동조성.
Through the analysis of characteristics in curve of deformation tests on the four kinds of rockmasses such as claystone, siltstone, feldspar-quartz sandstone and lithic sandstone underlain the dam foundation of Tingzikou Hydropower Station, it is thought that: the test deformation of thick lithic sandstone is mainly caused by slippage deformation of rock crystal lattice; the test deformation of feldspar-quartz sandstone is mainly from small crevices in rock, compressive deformation of rock small holes and slippage deformation of rock crystal lattice; and the test deformation of thin layer claystone in which horizontal layer is developed and siltstone is mainly from compression deformation in interlayer, small crevices in rock, compression deformation of rock small holes and slippage deformation of rock crystal lattice.
