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- sandy gravel overburden layer 砂卵石覆盖层
- sandy gravel layer on the riverbed 河床覆盖层
- This sewage pipeline uses HDPE double-wall corrugated pipe, sandy gravel stratum foundation and U-type rubber washer joint. 该污水管采用HDPE双壁波纹管,砂砾垫层基础,U型橡胶圈接口。
- In deep overburden layer exploration, the result of a sole geophysical method is usually lower reliability. 摘要在深厚覆盖层勘探中,单一物探方法的结果通常可靠性较低。
- At the same conditions, collapse occurs most easily in overburden layer with mixing structure. 在相同条件下具有混杂结构的覆盖土层最易产生塌陷;
- In the profile,the strata can be divided from the bottom upwards into fluvial sandy gravel,horizontally vermiculated ferruginous red soil,vertically vermiculated red soil,red clay and eolian Xiashu loess,3.3m,4.5m,5.9m,3.6m and 4?1m thick respectively. 该剖面地层自下而上可分为河流相冲积砂砾石、以发育水平状网纹为特征的铁质网纹红土、以垂向网纹为特征的网纹红土、红色粘土和风成下蜀黄土,分别厚3.;3、4
- Through grouting practice of design and construction,it is proved feasible and cheaper to use dam heavy curtain grouting technology for leakproof and bracing for foundation pit in the sandy gravel stratum. 通过一灌浆工程设计和施工实践,说明了在含水量高补给充分的砂砾卵石层中运用大坝帷幕灌浆技术进行基坑止水和支护的可行性和经济性。
- The collapse of overburden layer and land surface due to underground mining is one kind of environmental hazards induced by human being. 采矿区覆岩及地表塌陷是涉及全球性人为环境灾害之一。
- In order to meet the requirement of stability, loading and the distortion of the dam, the technique of vibration &impulsion was adopted to reinforce the overburden layer. 为了确保闸坝基础能满足坝基稳定、承载、变形的要求,设计上采用了振冲法对覆盖层进行加固处理。
- A view of design of sandy gravel filter 砂砾料反滤设计述评
- The increasing pore-water pressures caused by the change of water level in the overburden layer is the main reason of inducing many natural landslides in Sweden, Norwegian and Canada. 如瑞典、挪威和加拿大的天然滑坡,大都是由于覆盖层中地下水位的增加引起孔隙水压力增大而诱发的。
- Natural sandy gravel used in artificial foundation 浅谈天然砂砾石在人工地基中的应用
- strong permeable sandy gravel formation 强透水砂卵石地层
- The result of pot experiment displayed that the releasing ratio of the new fixed NH + 4 of overburden layer and loess parent material horizon in Lou soil was 98.32% and 95.09% respectively. 盆栽试验结果表明 :土娄土覆盖层和黄土母质层中“新”固定态铵的释放率分别为 98.;32%25和 95
- On the basis of the analysis of the test data, the additional force linearly increased with variation of water pressure in the aquifer, and increased with the increase of the depth and with the content of coarse soil particle in the overburden layer. 试验结果表明:竖直附加力随含水层降压量的增大而线性增加,随深度增大而增大,随土层中粗颗粒含量增多而增大。
- According to analyzing lithology of cenozoic stratum, vertical change, overburden layer condition, terrain characteristic and physiognomy characteristic, the author discusses hydrogeology condition of ground hot water. 通过分析盆地内新生界地层岩性及其垂向变化、储盖层条件、盆地地形地貌特征 ,讨论了盆地地热水形成的水文地质条件。
- Comparison analysis for antiplane surface motion features between the circular-arc cross-section alluvial valley and the single overburden layer is investigated in details in this paper. 为了更深入地研究了一般圆弧状沉积盆地的出平面地表运动特征,本文与已有的软土单覆盖层解析结果做了对比分析。
- Practice of Retailing Backwall Refilled with Natural Sandy Gravel 用天然砂砾进行台背回填的实践
- Without experiences for reference when constructing the large-span tunnel within overburden layers, Yele Hydropower Station has to carry on related technical research. 摘要在冶勒水电站覆盖层内大跨度隧洞施工时没有先例可借鉴,只有进行相关的技术研究;
- Settlement calculation and control analysis of sluice on deeply covered layer of sandy gravel 砂砾石深覆盖层上水闸沉降计算与控制分析