Sediment movement on the silty coast during a storm;
粉砂质海岸大风天泥沙运动研究
According to the pertinent regulations in GBJ123-88 geotechnieal test method standard,140 groups of 5 clas- sification methods of fine sand,silt and dust in Heihe city were performed in this paper.
本文根据《GBJ123-88——土工试验方法标准》的有关规定,对黑河市的细粉砂、粉土做了140组五种方法试验的比较研究后得出结论认为:"水洗筛析法"是可采用的比较准确,容易操作,既简单方便,又经济实用的颗粒分级方法。
Laboratory study of the instability of saturated silty sand;
饱和粉砂不稳定性的试验研究
Study of liquefaction evaluation used in indoor test of silt,silty sand mixed clay;
混黏土的粉土、粉砂室内试验液化判别标准的研究
Effects of grain size distribution and structure on mechanical behavior of silty sands;
颗粒级配和结构对粉砂力学性质的影响
Based on the concept of energy balance,an empirical formula is set up to hindcast the volume of silt-sand sudden siltation.
文中以能量平衡为基础,建立计算粉砂骤淤的经验公式。
From Bohai Bay to the northern bank of Yangtze River, there exist many silt-sandy beaches.
我国自东北沿渤海湾向南至长江口北部存在不少粉砂质海岸段。
This paper collects wind data during 1991 to 2002 and hindcasts silt-sand volume under strong winds.
在粉砂质浅海区域,大风往往引发严重的淤积现象。
In lamina of shale which deposited in deep lake away from paleo-debouchment in the Shahejie Formation in the Jiyang Depression, some aeolian silty sand was discovered.
在济阳坳陷沙河街组远离古河口沉积的页岩纹层中发现了风成粉砂沉积。
Identification of sedimentary microfacies of low-permeability siltstone reservoirs by expert system;
基于专家系统的粉砂岩低渗透储层沉积微相识别
Accurately distinguishing siltstone and salt gypsum rock under combination drilling condition;
复合钻井条件下粉砂岩与盐膏岩的准确识别
Experimental study on deformability and strength of soft siltstone;
软质粉砂岩变形与强度的试验分析
Under the action of composite addition agent, dry mortar with micro-powder of steel slag has excellent properties.
钢渣微粉既是活性掺合料,又是矿物增稠剂,掺钢渣微粉的干粉砂浆,在复合外加剂的作用下,显示了优异的性能,不仅具有良好的工作性稠度大、分层度小、保水性能好、良好的力学性能(包括后期强度持续增长),而且还具有抗折强度高、低收缩、微膨胀和耐久性好等特点。
Through choosing additive of good adaptability and adjusting grain composing of basic material to attain the best state,the quality of dry mortar of outside heat preservation outside the wall was raised.
通过试验选择适应性好的外加剂,调整基料的颗粒组成达到最佳状态,提高外墙外保温干粉砂浆实物质量。
Nowadays,dry mortar industry in china develops very fast,and the law of building energy-saving makes dry mortar industry become new investment craze.
当前,国内干粉砂浆发展很快,特别是建筑节能法规的强制执行,更使得干粉砂浆成为新一轮的投资热点。
Theory of screenless fiber resin-coated sand complex fine-silty sand control;
纤维复合无筛管防细粉砂理论研究
Traditional sand control techniques not only are ineffective to fine-silty sand control but also have great impact on the productivity of oil/gas wells.
油气井出砂是疏松砂岩油气藏开采的主要矛盾,传统的防砂技术在防砂的同时影响了油气井产能,并且防细粉砂的效果也不理想。