间隙排列PV结构兼具遮阳、采光、发电等性能,宜用作建筑顶部采光设施.文中针对广州地区的气候条件,对4种不同参数的PV结构进行对比研究,综合考虑采光性能与发电能力,选出了PV面板安装的最优方案,即PV面板与水平面之间呈60°倾角,以...间隙排列PV结构兼具遮阳、采光、发电等性能,宜用作建筑顶部采光设施.文中针对广州地区的气候条件,对4种不同参数的PV结构进行对比研究,综合考虑采光性能与发电能力,选出了PV面板安装的最优方案,即PV面板与水平面之间呈60°倾角,以此在保证较高采光能力的同时提供良好的发电能力;通过在设计案例中的应用对间隙排列PV结构的采光及发电性能进行了分析,结果表明:该间隙型PV结构具有良好的遮阳效果,其下方10 m处地面的平均采光系数为4.9%,年度累计发电能力为61.8 k W·h/m2.展开更多
The landslide disaster caused by the argillaceous interlayer not only destroys buildings,cultivated land,and roads but also seriously endangers human life and safety.This study concerns the mineral composition of sele...The landslide disaster caused by the argillaceous interlayer not only destroys buildings,cultivated land,and roads but also seriously endangers human life and safety.This study concerns the mineral composition of selected argillaceous interlayer and their strength characteristics.To study the mineral composition of argillaceous interlayers,8 kinds of samples in the southern Jiangsu region of China were analyzed utilizing X-ray diffraction(XRD).The repeated direct shear strength tests(RDST)were carried out on the undisturbed specimens of the argillaceous interlayer.The results show that the argillaceous interlayer with high content of kaolinite shows ductile failure mode,which means that there is no obvious residual strength in the shear process.The arrangement of mineral particles on the shear surface of the specimens after different shear displacements was observed under the scanning electron microscope(SEM).It was observed that mineral particles on the shear surface showed a more directional arrangement with the increase of shear displacement.Furthermore,the influence of shear direction on the argillaceous interlayer with completely oriented mineral particles was studied through numerical experiments with four shear strength mechanisms proposition proposed.The influence of the mineral arrangement on the action occasion and magnitude of dilatancy component of shear strength is clarified in the shear mechanism.展开更多
文摘间隙排列PV结构兼具遮阳、采光、发电等性能,宜用作建筑顶部采光设施.文中针对广州地区的气候条件,对4种不同参数的PV结构进行对比研究,综合考虑采光性能与发电能力,选出了PV面板安装的最优方案,即PV面板与水平面之间呈60°倾角,以此在保证较高采光能力的同时提供良好的发电能力;通过在设计案例中的应用对间隙排列PV结构的采光及发电性能进行了分析,结果表明:该间隙型PV结构具有良好的遮阳效果,其下方10 m处地面的平均采光系数为4.9%,年度累计发电能力为61.8 k W·h/m2.
基金Project(41672258) supported by the National Natural Science Foundation of ChinaProject(2018045) supported by the Land and Resources Science&Technology Project of Jiangsu Province,China。
文摘The landslide disaster caused by the argillaceous interlayer not only destroys buildings,cultivated land,and roads but also seriously endangers human life and safety.This study concerns the mineral composition of selected argillaceous interlayer and their strength characteristics.To study the mineral composition of argillaceous interlayers,8 kinds of samples in the southern Jiangsu region of China were analyzed utilizing X-ray diffraction(XRD).The repeated direct shear strength tests(RDST)were carried out on the undisturbed specimens of the argillaceous interlayer.The results show that the argillaceous interlayer with high content of kaolinite shows ductile failure mode,which means that there is no obvious residual strength in the shear process.The arrangement of mineral particles on the shear surface of the specimens after different shear displacements was observed under the scanning electron microscope(SEM).It was observed that mineral particles on the shear surface showed a more directional arrangement with the increase of shear displacement.Furthermore,the influence of shear direction on the argillaceous interlayer with completely oriented mineral particles was studied through numerical experiments with four shear strength mechanisms proposition proposed.The influence of the mineral arrangement on the action occasion and magnitude of dilatancy component of shear strength is clarified in the shear mechanism.
