| 充沙长管袋抛掷沉降运动的力学研究 |
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| 引用本文： | 孙东坡,彭成山,耿明全,李国庆.充沙长管袋抛掷沉降运动的力学研究[J].水利学报,2002,33(1):0035-0040. |
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| 作者姓名： | 孙东坡 彭成山 耿明全 李国庆 |
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| 作者单位： | 1. 华北水利水电学院水利系,河南,郑州,450008
2. 黄河河南河务局，河南郑州，450003 |
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| 摘 要： | 本文对充沙长管袋这种新型的筑坝、抢险整治工程材料进行了抛掷沉降运动的力学分析研究与模拟计算。根据充沙长管袋的几何、材料特性，本文分析了管袋沉降机理与沉降速度；在多个小块柔性连接体的假设下，对抛掷在河流中的管袋进行了力学分析与动力学过程的研究，建立了管袋沉降的连续体数学模型。通过合理简化，导出了实用的管袋位移与转角的计算公式。根据管袋抛掷的观测资料，确定了沉降计算的有关参数；针对黄河水流、泥沙特点及现实施工条件进行了多种管袋抛掷沉降的模拟计算，提出了适应黄河丁坝防护的管袋尺寸及位移范围值。
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| 关 键 词： | 丁坝 充沙长管袋 沉降速度 位移与转角 |
| 文章编号： | 0559-9350(2002)01-0035-05 |
Study on the setting motion of the long bag filled with sand |
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| SUN Dong-po,PENG Cheng-shan,GENG Ming-quan,LI Guo-qing.Study on the setting motion of the long bag filled with sand[J].Journal of Hydraulic Engineering,2002,33(1):0035-0040. |
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| Authors: | SUN Dong-po PENG Cheng-shan GENG Ming-quan LI Guo-qing |
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| Affiliation: | 1.North China Institute of Water Conservancy and Hydroelectric Power; 2. Yellow River Affair Bureau of Henan Province |
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| Abstract: | The logn bag filled with sand is a new type material for dam building and emergency harnessing of river.In this paper,the mechanics and numerical simulation of the setting motion of the long bag are studied.The dynamic properties and setting process of the long bag in the river are analyzed and mathematical model is established.The formulas for calculation of displacement and angle of deflection are deduced.Parameters of the formulas are determined by prototype observation data. |
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| Keywords: | spur dike bag filled with sand setting velocity displacement angle of deflection |
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