岩土力学
巖土力學
암토역학
ROCK AND SOIL MECHANICS
2014年
10期
2927-2933
,共7页
郭喜峰%晏鄂川%吴相超%尹健民%周春华
郭喜峰%晏鄂川%吳相超%尹健民%週春華
곽희봉%안악천%오상초%윤건민%주춘화
边坡%岩体%变形%模量
邊坡%巖體%變形%模量
변파%암체%변형%모량
slope%rockmass%deformation%modulus
三河口水利枢纽是引汉济渭工程两大水源工程之一,边坡岩体变形特性是主要的岩石力学问题,为此用刚性承压板法和钻孔变形试验,针对坝肩边坡不同岩性、不同风化程度岩体开展了大量原位试验。综合分析92个点刚性承压板变形试验成果,获得了不同岩体变形参数范围,重点讨论了不同变形曲线类型、各因素对试验成果的影响。介绍了钻孔变形试验方法及原理,分析了坝肩边坡岩体钻孔变形试验成果,最后对两种方法的变形试验进行对比,并综合评价了边坡岩体的变形特性。结果表明,该工程坝肩边坡岩体具有较高的变形参数,变形曲线大部分为直线型,岩体变形特性与岩体类别密切相关,两种试验方法所得岩体变形参数总体趋势一致。
三河口水利樞紐是引漢濟渭工程兩大水源工程之一,邊坡巖體變形特性是主要的巖石力學問題,為此用剛性承壓闆法和鑽孔變形試驗,針對壩肩邊坡不同巖性、不同風化程度巖體開展瞭大量原位試驗。綜閤分析92箇點剛性承壓闆變形試驗成果,穫得瞭不同巖體變形參數範圍,重點討論瞭不同變形麯線類型、各因素對試驗成果的影響。介紹瞭鑽孔變形試驗方法及原理,分析瞭壩肩邊坡巖體鑽孔變形試驗成果,最後對兩種方法的變形試驗進行對比,併綜閤評價瞭邊坡巖體的變形特性。結果錶明,該工程壩肩邊坡巖體具有較高的變形參數,變形麯線大部分為直線型,巖體變形特性與巖體類彆密切相關,兩種試驗方法所得巖體變形參數總體趨勢一緻。
삼하구수리추뉴시인한제위공정량대수원공정지일,변파암체변형특성시주요적암석역학문제,위차용강성승압판법화찬공변형시험,침대패견변파불동암성、불동풍화정도암체개전료대량원위시험。종합분석92개점강성승압판변형시험성과,획득료불동암체변형삼수범위,중점토론료불동변형곡선류형、각인소대시험성과적영향。개소료찬공변형시험방법급원리,분석료패견변파암체찬공변형시험성과,최후대량충방법적변형시험진행대비,병종합평개료변파암체적변형특성。결과표명,해공정패견변파암체구유교고적변형삼수,변형곡선대부분위직선형,암체변형특성여암체유별밀절상관,량충시험방법소득암체변형삼수총체추세일치。
Sanhekou hydraulic junction is one of the two potable water source projects of the water diversion from the Hanjiang River-Weihe River project, and deformation properties of the slope rockmass are the main rock mechanical problem. Thus, many groups of in-situ tests for different lithologies and weathering degree rockmasses are conducted on abutment slope through rigid bearing plate method and borehole deformation test method. At first, 92 points' rigid bearing plate deformation test results are comprehensively analyzed, variation range of the deformation parameters for different rockmasses is obtained;different curve types and influencing factors of test results are emphatically discussed. And then, borehole deformation test method and principle are introduced;borehole deformation test results for abutment slope rockmass are analyzed. At last, deformation test results through two different test methods are contrasted and slope rockmass deformation characteristics are comprehensively studied. The results show that the deformation parameters of this dam abutment slope rockmass are relatively high;deformation curves are mainly belong to linear type;deformation characteristics are closely related to the category;and parameters trend obtained from the two test methods trend to be general consistent.