| 1. | Depth detection and analysis on the scour pit around the south spur dyke head of changxin island
长兴岛南沿丁坝坝头冲刷坑深度探析 |
| 2. | The cause of the formation of the scoured pits and the runoff of the root rocks are studied through the experiment of the scoured pits which are along the river section from xiyaozipai in qingtong city to xiabaqing in taole town
本文通过对青铜峡市细腰子拜和陶乐县下八顷河段冲刷坑的试验研究，对冲刷坑的形成及根石走失成因进行了分析研究。 |
| 3. | In this paper , scale models are used to study local scour around bridge piers and abutments , and the scour pit pattern and maximum scour depth , which may serve as a reference for engineering design , are given
采用系列模型试验方法，对具体工程大型桥墩在水流和波流共同作用下的局部冲刷分别进行研究，提出了冲刷坑形态和最大冲刷深度，供工程设计参考。 |
| 4. | In addition , the contrast analysis and calculation of the computational formulas commonly used in the scoured pit designs are conducted . it concludes that makeweiyefu formula and boerdakefu formula can be chosen for use besides jianghuanzhang formula
另外，对设计中通常采用的冲刷坑计算公式进行了详细演算和对比分析，除蒋焕章公式以外，马特维也夫、波尔达柯夫等都可选择应用。 |
| 5. | The formation of the scoured pits is related with such factors as the unstable flow velocity and the unstable flow state caused by the circumfluence in the cross direction , the upstream circumfluence and the circle flow around the embankment
冲刷坑的形成与横向环流、上游回流和绕流丁坝造成流速及流态不均匀等因素有关；根石走失与根石在水中的稳定性和河床性质及坝脚附近冲坑有关。 |
| 6. | Through theoretical computation and experimental observation , it is put forward that the maximal depth of the scoured pits of the embankment is from ten to thirteen meters , and for several pits whose top are rinsed by main flow continuously , their scoured depth have reached twenty meters
经过理论计算和试验观测研究，提出了仁存渡以下沙质河床，丁坝最大冲刷坑水深为10 ? 13米，个别受主流持续顶?的丁坝，最大冲刷坑水深可达20米。 |
| 7. | In order to explore harness scheme , layout , measurements and parameters concerned of the project , which are appropriate for the characteristic and the evolvement law of the watercourse of ningxia section of the yellow river , the study on the experiment of the scoured pit of the dam buttress and runoff of the root rock of ningxia section of the yellow river is of important theoretical meaning and practicable value
河道床质也不相同，仁存渡以上河段为沙卵石，以下河段为沙质。为了探索适宜黄河宁夏段河道特性和演变规律的整治方案、工程布局、工程措施及有关参数，开展黄河宁夏段河道坝垛冲刷坑和根石走失试验研究，具有十分重要的理论意义和实用价值。 |
| 8. | Based on the local scouring test of the dike ' s head under the action of clear tidal currents , of both tidal currents and waves , and of both muddy tidal currents and waves , variations of the scoured pit ' s depth at each dike ' s head with time , and the scoured pit ' s depths with three experimental conditions are compared
进行了清水潮流和潮流波浪、浑水潮流波浪作用下的4条丁坝坝头冲刷试验，给出了各丁坝坝头冲刷坑深度随时间的变化，对比了3种试验条件下丁坝坝头冲刷坑的深度。 |
