1) fine sand
细砂
1.
Study on durability of machine-made sand and fine sand high performance concrete;
机制砂与天然细砂混掺配制高性能混凝土耐久性的研究
2.
Experimental study on engineering performances of cement improved fine sand;
水泥改良细砂填料工程性能试验研究
3.
Mud jacking technology of cement concrete pavement use fine sand substitute partial fly ash;
用细砂代替部分粉煤灰的路面板块压浆工艺
2) silt-sand layer
粉砂细砂层
3) tiny-grinding wheel
微细砂轮
1.
In this technique,the MR fluid,which is a suspension of magnetizable particles,non-magnetic abrasives and carrier medium,is dynamical abruptly transformed into a plastic like solid under an applied external magnetic field and forms a dynamical tiny-grinding wheel.
在对磁流变液特性分析的基础上,提出了基于磁流变效应即效微细砂轮研抛的新工艺方法。
4) fine sandstone
细砂岩
1.
Meso-experiment of fine sandstone thermal crack laws;
细砂岩热破裂规律的细观实验研究
2.
Lithology of Tertiary oil bearing reservoir in Taibei Sag is mainly fine sandstone and petrological types are mainly lithic arkose and hybrid sandstone.
台北凹陷第三系含油储层岩性以细砂岩为主,岩石学类型以岩屑长石砂岩和混合砂岩为主,含气储层岩性以砂砾岩为主,岩石学类型为岩屑砂砾岩。
3.
To investigate the deformation behaviors of rock the evolution of the hysteresis curve of rock under cyclic loading was studied by the experimental investigation of the deformation characteristics of fine sandstone under cyclic loading at three deformation rates and two stress levels.
通过不同加载速率和不同载荷水平的周期性循环载荷作用下细砂岩变形特性的试验研究,探讨了岩石在周期性载荷作用下的变形特性。
5) fine tail sand
细粒尾砂
1.
The authors discussed the procedures for dewatering the fine tail sand after analyzing the feature of the sand,water and water force,as well as the relations between permeability and time for dewatering.
从尾砂的特征、含水性质及水力学关系,导出尾砂渗透系数值与脱水所需时间的关系公式,阐述细粒尾砂脱水的工艺措施。
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