1) 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。
2) 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。
3) 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。
4) sand gravel stratum
砂卵砾石层
1.
Whether the natural sand gravel stratum in the river bed would serve as the foundation of the superhigh faced rockfill dam or not was one of the key technical problems of the project.
河床天然砂卵砾石层能否作为超高面板坝坝基是该工程的关键技术问题之一。
5) sandy gravel stratum
卵石砂砾层
1.
Construction method of cast-in-place bored pile through sandy gravel stratum;
浅谈钻孔灌注桩穿越卵石砂砾层的施工
6) sand-stone cushion
砂卵石垫层
1.
Application of the reinforced sand－stone cushion in foundation consolidation;
加筋砂卵石垫层在地基加固工程中的应用
补充资料：流砂层
流砂层
quick sand bed
密切关系。流砂层岩性特征是，般砂粒粒度均匀孔隙度大、上下岩层多为不透水性。故常饱含地下水;粘土质流砂层具触变性，即受机械振动而液化，振动停止后又恢复原状;天然流砂层湿而带腐臭味。形成流砂的原因:吃l、山于地下爆破或机械震动的影响.在足够大的动水压力或动荷载作用「，层中水力坡度增大，流速增大，冲动细颗粒而使其悬浮和流动成渗透流砂(助由土粒周围附着亲水胶体颗粒，饱水时胶体颗粒膨胀·在渗透水作用下而悬浮流动;其流动速度有快有慢遇到以溃决形式急剧流动时，破坏力很大，会使地基和「_程的稳定性遭到严重破坏。流砂层它是矿山采掘作业的 ，大灾害其防治方法有疏干排水、灌浆固结、板桩加固等 (李远鄂陈国洗l一ushoeeng流砂层(quiek sand bed)埋藏于地下饱含水的，当工程揭露时引起渗透水流作用而发生流动的粉砂、细砂、亚粘土层。流砂层不仅分布于第四纪地层中，而且在基岩古老时代的地层中也有存在，它埋藏于不同的深度，其分布位置多与古河谷和近海冲积平原有
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