红砂岩泥化夹层力学特性及其对边坡稳定性的影响
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摘要
在红砂岩的特性与边坡稳定的研究成果基础上,重点介绍了红砂岩泥化夹层的物理力学性质的室内试验结果,研究了泥化夹层的含水量对其抗剪强度的变化规律,并分析了红砂岩泥化夹层物理力学特性对边坡稳定性的影响。研究结果表明:泥化夹层的水敏性强,对边坡的整体稳定性产生了较不利的影响。
Slope destabilization and land slip usually happened while building the speedway in red sandstone area. On the base of the research findings about properties of the red sandstone and slope stability,the result of the indoor test on physical-mechanical property of clayer thin interlayer in red sandstone was mainly introduced. The variational rule of the shear strength by changing the water ratio of the thin interlayer was researched. The influencing on stability of slope with physicalmechanical property of the clayer thin interlayer in red sandstone were analysed. The research results indicate that the effect of the Water Sensitivity of the clayer thin interlayer is strong,and the clayer thin interlay does adverse effect on stability of slope.
Slope destabilization and land slip usually happened while building the speedway in red sandstone area. On the base of the research findings about properties of the red sandstone and slope stability,the result of the indoor test on physical-mechanical property of clayer thin interlayer in red sandstone was mainly introduced. The variational rule of the shear strength by changing the water ratio of the thin interlayer was researched. The influencing on stability of slope with physicalmechanical property of the clayer thin interlayer in red sandstone were analysed. The research results indicate that the effect of the Water Sensitivity of the clayer thin interlayer is strong,and the clayer thin interlay does adverse effect on stability of slope.
引文
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[4]Hock E,Wood D,Shah S.A modified hoek-brown criterion for jointed rock mass[J].Proceeding of a Symposium of the Interna-tional Society of Rock Mechanics on Rock Characterization,1992(192):209-214.
[5]陈国兴,陈继华.软弱土层的厚度及埋深对深厚软弱场地地震效应的影响[J].世界地震工程,2004,9(3):66-72.
[6]范留明,闰娜,李宁.薄弹性软弱夹层的动力响应模型[J].岩石力学与工程学报,2006,1(1):88-92.
[7]刘成禹,何赤忠,何满潮.湘西铁路沿线红层边坡工程地质研究[J].中国地质灾害与防治学报,2007,18(2):58-62.
[8]李树森,符文熹,聂德新.洞室顶部软弱夹层和层状岩体的稳定性分析[J].山地学报,2000(4):156-160.
[9]符文熹,聂德新,尚岳全,等.软弱夹层工程地质性质的室内仿真研究[J].浙江大学学报:工学版,2003,1(1):1-4.
[10]台湾地工小百科之一.软弱夹层的工程特性[J].岩土工程界,2005,8(11):24-25.
[11]JTG E40—2007公路土工试验规范[S].
[12]GB50330—2002建筑边坡工程技术规范[S].
[2]刘宏力,石豫川,刘汉超.软弱层带抗剪强度经验公式[J].水土保持研究,2005,12(6):39-41.
[3]简文星,殷坤龙,马昌前,等.万州侏罗纪红层软弱夹层特征[J].岩土力学,2005,26(6):901-905.
[4]Hock E,Wood D,Shah S.A modified hoek-brown criterion for jointed rock mass[J].Proceeding of a Symposium of the Interna-tional Society of Rock Mechanics on Rock Characterization,1992(192):209-214.
[5]陈国兴,陈继华.软弱土层的厚度及埋深对深厚软弱场地地震效应的影响[J].世界地震工程,2004,9(3):66-72.
[6]范留明,闰娜,李宁.薄弹性软弱夹层的动力响应模型[J].岩石力学与工程学报,2006,1(1):88-92.
[7]刘成禹,何赤忠,何满潮.湘西铁路沿线红层边坡工程地质研究[J].中国地质灾害与防治学报,2007,18(2):58-62.
[8]李树森,符文熹,聂德新.洞室顶部软弱夹层和层状岩体的稳定性分析[J].山地学报,2000(4):156-160.
[9]符文熹,聂德新,尚岳全,等.软弱夹层工程地质性质的室内仿真研究[J].浙江大学学报:工学版,2003,1(1):1-4.
[10]台湾地工小百科之一.软弱夹层的工程特性[J].岩土工程界,2005,8(11):24-25.
[11]JTG E40—2007公路土工试验规范[S].
[12]GB50330—2002建筑边坡工程技术规范[S].
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