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多次爆破能量下滑块位移法分析滑坡稳定性

DOI: 10.3969/j.issn.1674-0696.2014.04.19, PP. 90-94

Keywords: 环境工程,动力地质学,能量,位移,滑块位移法,滑坡,environmentalengineering,dynamicgeology,energy,displacement,sliderdisplacementmethod,landslide

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Abstract:

:?爆破荷载对滑坡体的作用过程实际是爆破引起滑体滑面位移累加的过程;将滑坡滑移面简化为拉裂段、剪切段和蠕滑段,建立了滑坡振动的物理模型和滑块的力学模型,基于剪切段和蠕滑段的本构方程得出滑坡滑动过程的应变能公式,同时分析得出了爆破地震波衰减能量、重力势能以及滑坡体阻尼耗能公式,通过能量守恒最终计算出剪切段和蠕滑段的位移量,并给出单次和多次爆破振动下滑坡的总位移量表达式。以码头隧道洞口滑坡为例,获得每个条块的单位滑移量,并判定滑移破坏首先是剪切和蠕滑交接处,其次为剪切段顶端,最终是蠕滑段末端,同时得到单次振动滑坡滑移量为83.92mm,假定一次爆破影响相同,监测滑坡临界破坏总位移量为670mm,只需7.98次爆破滑坡即发生滑移破坏。

References

[1]  [1] 许冲,徐锡伟,吴熙彦,等.2008年汶川地震滑坡详细编目及其空间分布规律分析[J].工程地质学报,2013,21(1):25-44.
[2]  Xu Chong,Xu Xiwei,Wu Xiyan,et al.Detailed catalog of landslides triggered by the 2008 Wenchuan earthquake and statistical analyses of their spatial distribution [J].Journal of Engineering Geology,2013,21(1):25-44.
[3]  [2] 许冲,徐锡伟,于贵平,等.玉树地震滑坡影响因子分析[J].科技导报,2012,30(1):25-44.
[4]  Xu Chong,Xu Xiwei,Yu Guiping,et al.Susceptibility analysis of impact factors of landslides triggered by Yushu earthquake [J].Science & Technology Review,2012,30(1):25-44.
[5]  [3] 白志勇,黄素珍,鲁勉.爆破对边坡岩体稳定性的影响[J].路基工程,1995(3):19-23.
[6]  Bai Zhiyong,Huang Suzhen,Lu Mian.Blasting impact on the stability of slope rock mass [J].Subgrade Engineering,1995(3):19-23.
[7]  [7] Yegian M K,Marciano E A,Ghahraman V G.Earthquake-Induced permanent deformations:probabilistic approach [J].Leadership and Management in Engineering,1991,117(1):35-50.
[8]  [8] Yegian M K,Marciano E A,Ghahraman V G.Seismic risk analysis for earth dams [J].Journal of Geotechnical Engineering,1991,117(1):18-34.
[9]  [9] Ling H I.Recent applications of sliding block theory to geotechnical design [J].Soil Dynamic and Earthquake Engineering,2001,21(3):189-197.
[10]  [10]王思敬.岩石边坡动态稳定性的初步探讨[J].地质科学,1977(4):372-376.
[11]  Wang Sijing.Preliminary notes on the dynamic stability of rock slopes [J].Scientia Gedogiga Sinica,1977(4):372-376.
[12]  Li Hongjun,Chi Shichun,Lin Gao.An improved Newmark sliding block method based on stick-slip coupled dynamic response [J].Chinese Journal of Rock Mechanics and Engineering,2007,26(9):1787-1793.
[13]  Chen Ming,Lu Wenbo,Zhou Chuangbing,et al.Rock slope stability under blasting vibration based on equivalent acceleration [J].Explosion and Shock Waves,2011,31(5):475-480.
[14]  [15]李洪涛,卢文波.爆破地震波的能量衰减规律研究[J].岩石力学与工程学报,2010,29(增刊1):3364-3369.
[15]  Li Hongtao,Lu Wenbo.Study of energy attenuation law of blast-induced seismic wave [J].Chinese Journal of Rock Mechanics and Engineering,2010,29(S1):3364-3369.
[16]  [16]马志杰,孟庆生,贾永刚.黄河口粉质土对振动能量的吸收特征研究[J].中国海洋大学学报:自然科学版,2007,37(增刊1):95-100.
[17]  Ma Zhijie,Meng Qingsheng,Jia Yonggang.The yellow powder soil to absorb vibration energy characteristics research [J].Periodical of Ocean University of China:Natural Science,2007,37(S1):95-100.
[18]  [17]熊传祥,龚晓南,王成华.高速滑坡临滑变形能突变模型的研究[J].浙江大学学报:工学版,2000,34(4):443-447.
[19]  Xiong Chuanxiang,Gong Xiaonan,Wang Chenghua.A deformation energy catastrophic model of high speed landslide before sliding [J].Journal of Zhejiang University:Engineering Science,2000,34(4):443-447.
[20]  [18]李洪涛.基于能量原理的爆破地震效应研究[D].武汉:武汉大学,2007.
[21]  [19]Richart F E,Hall J R.土与基础的震动[M].徐攸,译.北京:中国建筑工业出版社,1976.
[22]  Richart F E,Hall J R.Vibration of Soils and Foundations [M].Xu You,translation.Beijing:China Architecture & Building Press,1976.
[23]  [20]张伟,焦玉勇,郭小红.隧道洞口滑坡稳定性分析与防治措施[J].岩土力学,2008,29(增刊1):311-314.
[24]  Zhang Wei,Jiao Yuyong,Guo Xiaohong.Slope stability analysis and prevention method of tunnel portal slope [J].Rock and Soil Mechanics,2008,29(S1):311-314.
[25]  [21]毛红梅.青花坪隧道爆破对古滑坡体稳定性评估及控制[J]. 路基工程,2007(5):43-44.
[26]  [4] 张永哲,甄胜利.漫湾电站开挖爆破对高边坡动力稳定影响的分析研究[J].工程爆破,1996,2(1):1-6,11.
[27]  Zhang Yongzhe,Zhen Shengli.Study on effect of excavation blasting on dynamic stability of high rock slice at Manwan hydropower station [J].Engineering Blasting,1996,2(1):1-6,11.
[28]  [5] Newmark N M.Effects of earthquakes on dams and embankments [J].Geotechnique,1976,15(2):139-160.
[29]  [6] Karmer S,Smith M.Modified newmak model for seismic displacements of compliant slopes [J].Journal of Geotechnical and Geo-environmental Engineering,1997,123(7):635-644.
[30]  [11]李红军,迟世春,林皋.基于黏着耦合动力分析的Newmark滑块位移法[J].岩石力学与工程学报,2007,26(9):1787-1793.
[31]  [12]祁生林,祁生文,伍法权,等.基于剩余推力法的地震滑坡永久位移研究[J].工程地质学报,2004,12(1):63-68.
[32]  Qi Shenglin,Qi Shengwen,Wu Faqu,et al.On permanent displacement of earthquake induced slide based on residual pushing force method [J].Journal of Engineering Geology,2004,12(1):63-68.
[33]  [13]周小平,钱七虎,张永兴,等.基于突变理论的滑坡时间预测模型[J].工程力学,2011,28(2):165-174.
[34]  Zhou Xiaoping,Qian Qihu,Zhang Yongxing,et al.Time prediction model of landslides based on catastrophe theory [J].Engineering Mechanics,2011,28(2):165-174.
[35]  [14]陈明,卢文波,周创兵,等.基于等效加速的岩质边坡爆破动力稳定性[J].爆炸与冲击,2011,31(5):475-480.
[36]  Li Hongtao.Study on Effect of Blast-Induced Seismic Based on Energy Theory [D].Wuhan:Wuhan University,2007.
[37]  Mao Hongmei.Qinghuaping tunnel blasting ancient landslide stability assessment and control [J].Subgrade Engineering,2007(5):43-44.

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