alluvial layer meaning in English
冲击层
冲积层
Examples
- Concrete anti - seepage wall are penetrated through the alluvial layer with high water permeability and put in the relative impermeable layer
混凝土防渗墙穿过透水性强的冲积层，置于相对隔水层内。 - A brief introduction is given to the treatment of the zeya dam foundation , principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir . as for the excavation of the sand - gravel zones , except the toe slab and its 1 / 9 bottom width down stream , the alluvial layers are excavated to the micro - weathered rocks , while the other sections remain unexcavated . regarding to the treatment of the fracture zones , concrete filling is used for the toe slabs and semi - permeable materials are used for other section . according to the construction characteristics , a filter is placed in the down stream embankment foot . to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted . as a result safety , economic benefit , convenience in construction and good performace are achieved
简要论述泽雅水库面板堆石坝坝基处理和防渗的原则及设计要点.趾板基础和堆石体各区砂砾石基础开挖，除趾板与其下游1 / 9底宽范围以及坝脚挖除冲积层至弱风化(局部微风化)基岩外，其余部分均予以保留.断层破碎带处理，趾板部位采用混凝土塞，其它部位采用半透水料置换，并根据本工程特点在下游坝脚加设了反滤层.为提高坝基的整体性和防渗性能，对趾板进行了固结和帷幕灌浆.达到了安全、经济、便于施工的目的，运行情况良好，可为面板堆石坝的设计和研究提供参考与借鉴 - A brief introduction is given to the treatment of the zeya dam foundation , principles of seepage control and design of the concrete face rockfill dam of the zeya reservoir . as for the excavation of the sand - gravel zones , except the toe slab and its 1 / 9 bottom width down stream , the alluvial layers are excavated to the micro - weathered rocks , while the other sections remain unexcavated . regarding to the treatment of the fracture zones , concrete filling is used for the toe slabs and semi - permeable materials are used for other section . according to the construction characteristics , a filter is placed in the down stream embankment foot . to improve the integrity of the dam foundation and anti - seepage capability consolidation grouting and curtain grouting are adopted . as a result safety , economic benefit , convenience in construction and good performace are achieved
介绍碧莲水电站拦水坝系软基上的水力自控翻板闸门溢流坝工程特点和设计原理.闸门利用水力和杠杆原理实现自控关闭；闸坝平时挡水发电,洪水期自动翻倒泄洪冲砂,有效地解决洪水对上游库区实物的淹没损失及水库泥沙淤积问题；闸坝采用地下混凝土连续墙进行地基防渗处理及面流消能，消能效果显著，工程投资少.本工程设计可供其它建固定坝淹没损失过大或在软基上建低重力式堰坝的类似工程参考