Seismic failure mechanisms were investigated for soil slopes subjected to strip load with upper bound method of limit analysis and finite difference method of numerical simulation,considering the influence of associat...Seismic failure mechanisms were investigated for soil slopes subjected to strip load with upper bound method of limit analysis and finite difference method of numerical simulation,considering the influence of associated and nonassociated flow rules.Quasi-static representation of soil inertia effects using a seismic coefficient concept was adopted for seismic failure analysis.Numerical study was conducted to investigate the influences of dilative angle and earthquake on the seismic failure mechanisms for the loaded slope,and the failure mechanisms for different dilation angles were compared.The results show that dilation angle has influences on the seismic failure surfaces,that seismic maximum displacement vector decreases as the dilation angle increases,and that seismic maximum shear strain rate decreases as the dilation angle increases.展开更多
Land subsidence phenomena caused by the overexploitation of the aquifers require the holistic knowledge of the geological, tectonic, hydrogeological and especially the geotechnical conditions of the affected sites in ...Land subsidence phenomena caused by the overexploitation of the aquifers require the holistic knowledge of the geological, tectonic, hydrogeological and especially the geotechnical conditions of the affected sites in order to be mitigated. The current paper focuses on the study of the phenomena taking place at the Amyntaio sub-basin, northern Greece, hosting the homonymous open pit coal mine,operating there the last two decades. The mining as well as the rising agriculture activities have led to a significant drawdown of the ground water level triggering extensive ground subsidence phenomena,causing damages at the nearby villages, infrastructure and farmlands. The production and evaluation of engineering geological–geotechnical maps as well as of thematic tectonic and hydrogeological maps proved that the knowledge of this data is crucial for the interpretation of the land subsidence mechanism and the spatial distribution of its effects.展开更多
This paper analyzes the distribution characteristics of geomagnetic low-value displacement in Gansu and its adjacent areas from 1995 to 2003 on the basis of the data of the daily amplitude minimum value time of the ge...This paper analyzes the distribution characteristics of geomagnetic low-value displacement in Gansu and its adjacent areas from 1995 to 2003 on the basis of the data of the daily amplitude minimum value time of the geomagnetic vertical component. It is shown that in addition to the changing rules of geomagnetic low-value displacement itself, there is a better correlation between geomagnetic low-value displacement and the occurrence of moderately strong earthquakes. There appeared to be geomagnetic low-value displacement before the moderately strong earthquakes in Gansu in the 9 years from 1995 to 2003. This result indicates that geomagnetic low-value displacement is of instructive significance for earthquake prediction to some extents.展开更多
The philosophical horizon of this essay is theoretically comparative and hermeneutically dialogic. Its main philosophical and theological tonality expresses, in first person and through three discursive moments, the d...The philosophical horizon of this essay is theoretically comparative and hermeneutically dialogic. Its main philosophical and theological tonality expresses, in first person and through three discursive moments, the differentiated fusion of horizons between phenomenological and grammatical description and understanding of experience. After a philosophical overture-outlining the ethos of the dialogic problematic and situating it within the contemporary diverse and dialogic dynamic of phenomenology-I will expose the consistent, possible modalities of convergence between Husserlian phenomenology and Wittgensteinian grammar of the mystical shapes of experience. The tense, responsorial dialogue among Husserl, Heidegger, Levinas, and Wittgenstein＇s styles of thinking, far from being anymore limited to the debates between the analytical and phenomenological, will be considered from the crossed categorial spaces of Austrian philosophy and German culture in general. In a second section, I will show how the styles of phenomenology today are advancing into a cautious micro-logical grammar of comparative inquiry. This thematization will first consider some precise semantic clarifications： Experience, the mystical, extasis, evidence, and truth; in a second section, the theoretical levels of grammar and phenomenology of mystical experience are heralded in the context of the Christian theological dialogue, where I emphasize the rebirth of French theological thinking and dialogic transcendence, beginning with Maritain and de Chardin to Marcel, de Lubac, Levinas, and Marion. Finally, I consider the aesthetic expressions of mystical experience, both from the visual and musical dimensions. I will conclude this talk by highlighting theological perspectives drawn from my research in musico-philosophical problematics, through an awakening to the resonance of Being and the Divine in sonic and musical life. Through a theology of the musical λογοζ, the grammar of mystical experience reveals the sacramentality of music and the mystery of silence展开更多
The ancient idea of Heavenly Punishment confused natural phenomena with social issues,which resulted in Zhang Heng’s tragedy in his later years and seismoscope. The instrument might have been lost in the end of the E...The ancient idea of Heavenly Punishment confused natural phenomena with social issues,which resulted in Zhang Heng’s tragedy in his later years and seismoscope. The instrument might have been lost in the end of the Eastern Han Dynasty. A series of extremely serious chaotic social events caused by war took place,such as a fire in Luoyang,forging coins by destroying copper wares,relocation of the capital,sharp population decrease,and the destruction of the Ling Observatory. Zhang’s scientific thought and successful practice had played an important role in ideological enlightenments at the primary stage of modern seismology at the end of the nineteenth century. There is a glorious course of"innovation—inheritance—re-innovation"of scientific and technical development from the inception Zhang Heng’s seismoscope to the modern seismograph invented by Milne,et al.展开更多
基金Project(200550) supported by the Foundation for the Author of National Excellent Doctoral Dissertation of ChinaProject(200631878557) supported by the West Traffic of Science and Technology,China
文摘Seismic failure mechanisms were investigated for soil slopes subjected to strip load with upper bound method of limit analysis and finite difference method of numerical simulation,considering the influence of associated and nonassociated flow rules.Quasi-static representation of soil inertia effects using a seismic coefficient concept was adopted for seismic failure analysis.Numerical study was conducted to investigate the influences of dilative angle and earthquake on the seismic failure mechanisms for the loaded slope,and the failure mechanisms for different dilation angles were compared.The results show that dilation angle has influences on the seismic failure surfaces,that seismic maximum displacement vector decreases as the dilation angle increases,and that seismic maximum shear strain rate decreases as the dilation angle increases.
文摘Land subsidence phenomena caused by the overexploitation of the aquifers require the holistic knowledge of the geological, tectonic, hydrogeological and especially the geotechnical conditions of the affected sites in order to be mitigated. The current paper focuses on the study of the phenomena taking place at the Amyntaio sub-basin, northern Greece, hosting the homonymous open pit coal mine,operating there the last two decades. The mining as well as the rising agriculture activities have led to a significant drawdown of the ground water level triggering extensive ground subsidence phenomena,causing damages at the nearby villages, infrastructure and farmlands. The production and evaluation of engineering geological–geotechnical maps as well as of thematic tectonic and hydrogeological maps proved that the knowledge of this data is crucial for the interpretation of the land subsidence mechanism and the spatial distribution of its effects.
基金sponsored by the Natural Science Foundation of Gansu Province (3ZS061-A25-008),China
文摘This paper analyzes the distribution characteristics of geomagnetic low-value displacement in Gansu and its adjacent areas from 1995 to 2003 on the basis of the data of the daily amplitude minimum value time of the geomagnetic vertical component. It is shown that in addition to the changing rules of geomagnetic low-value displacement itself, there is a better correlation between geomagnetic low-value displacement and the occurrence of moderately strong earthquakes. There appeared to be geomagnetic low-value displacement before the moderately strong earthquakes in Gansu in the 9 years from 1995 to 2003. This result indicates that geomagnetic low-value displacement is of instructive significance for earthquake prediction to some extents.
文摘The philosophical horizon of this essay is theoretically comparative and hermeneutically dialogic. Its main philosophical and theological tonality expresses, in first person and through three discursive moments, the differentiated fusion of horizons between phenomenological and grammatical description and understanding of experience. After a philosophical overture-outlining the ethos of the dialogic problematic and situating it within the contemporary diverse and dialogic dynamic of phenomenology-I will expose the consistent, possible modalities of convergence between Husserlian phenomenology and Wittgensteinian grammar of the mystical shapes of experience. The tense, responsorial dialogue among Husserl, Heidegger, Levinas, and Wittgenstein＇s styles of thinking, far from being anymore limited to the debates between the analytical and phenomenological, will be considered from the crossed categorial spaces of Austrian philosophy and German culture in general. In a second section, I will show how the styles of phenomenology today are advancing into a cautious micro-logical grammar of comparative inquiry. This thematization will first consider some precise semantic clarifications： Experience, the mystical, extasis, evidence, and truth; in a second section, the theoretical levels of grammar and phenomenology of mystical experience are heralded in the context of the Christian theological dialogue, where I emphasize the rebirth of French theological thinking and dialogic transcendence, beginning with Maritain and de Chardin to Marcel, de Lubac, Levinas, and Marion. Finally, I consider the aesthetic expressions of mystical experience, both from the visual and musical dimensions. I will conclude this talk by highlighting theological perspectives drawn from my research in musico-philosophical problematics, through an awakening to the resonance of Being and the Divine in sonic and musical life. Through a theology of the musical λογοζ, the grammar of mystical experience reveals the sacramentality of music and the mystery of silence
基金sponsored by the National Natural Science Foundation of China(40644019)the Special Found of Scientific Research Program for "the Optimization and Design for Reconstruction Models of Seismoscope",China Earthquake Administration
文摘The ancient idea of Heavenly Punishment confused natural phenomena with social issues,which resulted in Zhang Heng’s tragedy in his later years and seismoscope. The instrument might have been lost in the end of the Eastern Han Dynasty. A series of extremely serious chaotic social events caused by war took place,such as a fire in Luoyang,forging coins by destroying copper wares,relocation of the capital,sharp population decrease,and the destruction of the Ling Observatory. Zhang’s scientific thought and successful practice had played an important role in ideological enlightenments at the primary stage of modern seismology at the end of the nineteenth century. There is a glorious course of"innovation—inheritance—re-innovation"of scientific and technical development from the inception Zhang Heng’s seismoscope to the modern seismograph invented by Milne,et al.
