| 粒状碎屑溜砂坡运动方程与砂坡土r压力计算（溜砂坡系列研究之三） |
| |
| 引用本文： | 王成华,阙云,徐骏,李新坡.粒状碎屑溜砂坡运动方程与砂坡土r压力计算（溜砂坡系列研究之三）[J].岩土力学,2007,28(7):1299-1303. |
| |
| 作者姓名： | 王成华 阙云 徐骏 李新坡 |
| |
| 作者单位： | [1]中国科学院水利部成都山地灾害与环境研究所,成都610041 [2]重庆交通学院,重庆400074 [3]中国科学院研究生院,北京100039 |
| |
| 基金项目： | 国家自然科学基金重大项目（No.90202007）和中国科学院“西部之光”项目（No.0416005）资助. |
| |
| 摘 要： | 在溜砂坡系列研究之二的基础上,对风干砂的运动特征进行了细致观察。将干砂流视为连续介质的流动,对干砂流的运动动力和阻力进行了深入研究,建立了干砂流垂线流速分布方程和干砂流体底面、表面滑动速度方程。结合挡砂工程,将干砂流体视为沿底面（此种砂坡的天然休止角）滑动的三角体,从而导出粒状碎屑溜砂坡水平土压力（或水平推力）计算模型。
|
| 关 键 词： | 干砂流 底面滑动速度方程 表面滑动速度方程 砂坡土压力 |
| 文章编号： | 1000-7598-（2007）07-1299-05 |
| 收稿时间： | 2005-04-05 |
| 修稿时间： | 2005-04-05 |
Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series) |
| |
| WANG Cheng-hua, QUE Yun, XU Jun, Li Xin-po.Equation of motion and soil pressure for sand-sliding slope composed by granular clast (Part III of sand-sliding slope series)[J].Rock and Soil Mechanics,2007,28(7):1299-1303. |
| |
| Authors: | WANG Cheng-hua QUE Yun XU Jun Li Xin-po |
| |
| Institution: | 1. Institute of Mountain Hazards and Environment，Chinese Academy of Sciences，Chengdu 610041，China； 2. Department of River and Ocean Engineering,Chongqing Jiaotong University, Chongqing 400074, China; 3. Graduate School, Chinese Academy of Sciences, Beijing 100039, China |
| |
| Abstract: | The motion and soil pressure of air dried sands are studied based on field observations and investigations. First, the driving and resisting forces for movement of dry sands, which is regarded as a continuous medium that can flow, are analysed thoroughly. Then the equations for velocity distribution along vertical direction of the dry sand flow and that for velocity of sand mass sliding along the subface and top surface are derived. Finally, a calculation model for the horizontal earth pressure of granular flowing class or sands on the retaining wall is derived in connection with practical retaining works, in which the dry sands are treated as a triangular body. |
| |
| Keywords: | dry sand flow velocity equation for sliding along subface velocity equation for sliding along top surface soil pressure of sand slope |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
