| 1. | Much of the higher reflecting alluvium and limestone fell along the toe portion of the characteristic curve . 大部分反射率较高的冲积层和灰岩都位于特性曲线的趾部。 |
| 2. | Practice on fully mechanized coal mining under village with deep mining depth and thick alluvium 厚冲积层大采深村庄下综放开采实践 |
| 3. | Sediment deposited by flowing water , as in a riverbed , flood plain , or delta 冲积层河床、洪水淹没的平原或三角洲中的流水淤积所产生的沉积层 |
| 4. | In places , hill - slope debris forms a mantle over the bedrock and alluvium fills some of the valleys 在部分地方,基岩表面由岩石碎屑堆积形成覆盖层,而部分河谷则有冲积层。 |
| 5. | Preparation and application of high strength and high performance concrete of drilling shaft lining in special deep alluvium 特厚冲积层钻井井壁高强高性能混凝土配制研究及其应用 |
| 6. | 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。 |
| 7. | According to calculations , it was necessary to adopt a new type of structure of the shaft lining with vertically yieldable segments for reason of safety 分析计算表明:应采用竖向可缩新型井壁结构防止井壁因冲积层疏排水而破坏。 |
| 8. | Some syndepositional soil - layers disturbed by earthquakes were discovered in thick - bedded alluviums of eocene zhubidian formation in anqiu area of tancheng - lujiang seismic zone 摘要在郯庐地震带的安丘地区,发现始新世朱壁店组厚层冲积层中发育一些同沉积的地震扰动岩土层。 |
| 9. | The simulation tests were carried out to study the variation of the vertical additional force acted on shaft lining by surrounding soils during dewatering of alluvium by means of multi - function rig in vertical shaft 摘要利用大型竖井模拟试验台,对冲积层疏排水过程中立井井壁受到的竖直附加力的变化规律开展了模拟试验研究。 |
| 10. | 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 |