1) pebbly sand
含卵石砂层
2) sand layer with gravel
含卵砾石砂层
1.
The sand layer with gravel 12 m below the foundation level of 1 917.
00m以下12m深处的含卵砾石砂层,承载力较低,厚度变化较大(2～4。
3) sandy cobble water-bearig layer
砂卵石含水层
4) sand and gravel
砂卵石层
1.
Practice of consolidation grouting by machine pipe－driving in sand and gravel;
砂卵石层机械打管固结灌浆工程实践
2.
The paper discusses the determination of permeability coefficient of sand and gravel, based on the back analysis of three dimensional seepage flow theory, thus providing sound design basis for antiseepage treatment.
采用三维渗流理论对砂卵石层进行反演计算 ,根据覆盖层地质条件 ,建立三维渗流数学模型 ,然后给出一个渗透系数值 ,计算未建库前的地下水位 ,并与勘察所知的实际水位相比较 ,若两者不一致 ,则调整渗透系数 ,直至计算水位基本符合实测水位 以确定河床砂卵石层的渗透系数 ,为防渗处理提供可靠的设计依
3.
The paper discusses the determination of permeability coefficient of sand and gravel, based on the inversion computation of three\|dimensional seepage flow theory, thus providing sound design basis for antiseepage treatment.
本文采用三维渗流理论对砂卵石层进行反演计算 ,以确定河床砂卵石层的渗透系数 ,为防渗处理提供可靠的设计依据。
5) sandy cobble ground
砂卵石地层
1.
For the construction of the running tunnels of Chengdu Metro in sandy cobble ground,the shield machine is required to have the capability of performing long-distance boring in sandy cobble ground,crushing the large boulders and cobbles and prevention and control of mud bursting.
在成都砂卵石地层中建设地铁,要求盾构设备能够实现砂卵石地层的长距离掘进、大漂石和卵石的破碎以及防止喷涌的发生。
2.
The first stage project of line 1 of Chengdu Metro mostly passes through water-rich sandy cobble ground,which contains a small amount of large boulders.
成都地铁一号线一期工程区间隧道大多通过富水砂卵石地层,且含有少量大粒径漂石。
6) cobble stratum
砂卵石地层
1.
1 line of Chengdu Metro as an example,the authors introduce the methods and measures of hyperbaric operation in water bearing cobble stratum.
以成都地铁1号线盾构4标段(省体育馆—火车南站)工程为依托,介绍了针对成都地铁含水砂卵石地层这种特殊地质所采取的带压进舱作业的相关施工方案和施工措施,提出了确保砂卵石地层自稳性和提高砂卵石地层气密性的带压进舱作业的技术要点和作业方法。
补充资料：钻井液含砂量
分子式：
CAS号：
性质：钻井液中粒径大于74μm的悬浮粒子的含量，以体积百分比计算。
CAS号：
性质：钻井液中粒径大于74μm的悬浮粒子的含量，以体积百分比计算。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条