| 1. | The stability analysis on sandy gravel as road base 砂砾石作为道路基层的稳定性分析 |
| 2. | Study on stability of percolation of sandy gravel layer of xiaolangdi dam foundation 小浪底大坝坝基砂砾石层渗透稳定性研究 |
| 3. | Sand and gravel filter 砂砾石过滤器 |
| 4. | Application of the combined pile - anchor supporting in reinforcement of high sandy gravel slope 桩锚联合支护在砂砾石高边坡加固中的应用 |
| 5. | The foundation of gated - weir of the wanbahe power station is located on quaternary deposit which is soft 摘要湾坝河水电站闸基坐落在第四纪砂砾石覆盖层上,属于软基上建闸。 |
| 6. | Transient seepage analyses for gouhou concrete faced rockfill dam were conducted using the unsaturated soil seepage theory 摘要利用非饱和土渗流理论,对沟后混凝土面板砂砾石坝进行瞬态渗流数值模拟。 |
| 7. | Moreover , this article also discussed how the variation of relative density and average grain diameter influenced the shear stress of sand and gravel layer 另外,顺便探讨了相对密度、平均粒径对砂砾石层剪应力的敏感度。 |
| 8. | Coarse grained soil is composed of sand and gravel , stone residual , blasted stones etc . , which has a characters of less cohesive force among grains and strong ability of water penetration . it is a kind of soil of loose grain structure with better utilization properties in the engineering 粗粒土是指砂砾石、砂卵石、石渣、爆破开采的石料等粗颗粒土石混合料,具有粗颗粒间粘结力小、透水性强的性质,是一种松散的颗粒状结构,具有良好的工程使用性能。 |
| 9. | 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 |
| 10. | To determine if the dam base been liquefied through contrasting the shear stress which caused sand and gravel layer liquefied measured from indoor dynamic triaxial teat with calculated shear stress caused by earthquake in different depth of sand and gravel layer . and according to result of comparison to direct the design scheme of dam base 根据室内系统的动三轴试验测定的砂砾石层液化所需的剪应力与计算的砂砾石层中不同深度处由地震引起的剪应力相对比,从而最终判定坝基是否液化,并根据该结论指导了坝基设计处理方案。 |