USES material not qualified. Such as sand, stone, aggregate quality unqualified; In addition, mostly because cement volume expansion rate is too large (stability serious adverse).
所用材料不合格。如砂、石、集料质量不合格；除此之外，大多数是因为水泥体积膨胀率太大(安定性严重不良)。
The sand stratum in old river bed is important factor affecting stability of dam.
古河道砂层的存在，是影响围坝稳定的主要环境因素。
This paper researches the base made of the cement stability fine sand in materials composition designing, construction and pavement characteristic.
本文对水泥灰土稳定细砂基层结构的材料组成设计、施工工艺及路用性能进行了较为系统的研究。
The soft soil and sand foundation consolidated by vibration and impaction stone column can strengthen earthquake - resistant stability, raise bearing capacity and reduce settlement.
应用振冲碎石桩加固软土地基和砂基地，可增强抗震稳定性，提高承载力和减少沉降量。
The sodium silicate sand prepared with higher modulus sodium silicate has advantages of low residual strength, short CO2 blowing time, high moisture absorption ability and surface stability.
使用较高模数的水玻璃混制的型砂具有残留强度低、吹CO2时间短等优点，并有好的抗吸湿性和表面稳定性。
Because of the special water quality, sand abrasion is a severe menace to the operate stability of the units in Xiaolangdi Hydropower Plant.
由于小浪底电站特殊的水质条件，水轮机的泥沙磨损问题对小浪底的安全稳定运行构成了相当大的威胁。
Furthermore, the constraint condition, sand property and loading velocity all affect the pipeline stability to a certain degree.
管道的约束条件、砂床特性和加载速度对管道稳定性均有影响。
Based on typical engineering examples, the stability problem of base expansion of large diameter expanded-base piles in sand layer is summarized and analyzed.
结合典型工程实例，总结和分析了大直径扩底桩在砂层中的扩底稳定问题。
So the stability study of the Dongsha sandbank is very helpful to the analysis of the stability of the whole radial submarine sand ridges system and the neighboring tidal flat.
东沙是江苏岸外辐射沙脊群中的第二大沙洲，具有独特的地形地貌和水动力条件，对它进行稳定性研究为揭示整个辐射沙洲及其邻近岸滩的动态演变都非常有益。
To study the stability of natural sand embankment slope covered with cohesive soil layer, the mode and the mechanism of sand embankment slope failure were analyzed.
为了研究粘性包边土层与砂填料所共同构成的填砂路基边坡的稳定性，分析了填砂路基的破坏模式与破坏机理，并通过模型试验的结果得到了滑动面位置。
Differs with other researches, the article put forwards the explore study of seaport from the view of maintain the stability of channel-sand system.
同以往单一研究水道或沙洲不同，文章提出从维持水道-沙洲系统稳定性的角度进行区域海港开发前景研究。
The rich coal region is located in the north side of large sand body, showing poor stability, and becoming thin, splitting an…
富煤带位于大型砂体之北侧，煤层稳定性较差，且变薄、分岔、尖灭现象普遍。
Extend rest period and thermostatic period, increase thermostatic temperature also could reduce the dry shrinkage rate of standard curing concrete sand mortar, evidently improve its volume stability.
延长预养时间和恒温时间、提高恒温温度可以降低蒸养纯水泥砂浆的干缩率，使其体积稳定性得到明显改善。
The relation formula is used to develop the sand production test model and wall stability analytical model.
利用该关系式建立了出砂判别模式和井壁稳定性分析模式，在实践中取得了较高的符合率。
The mechanisms of their deformation-crack phenomena at ambient and high temperatures are discussed and it is pointed out that the thermal stability of resin-coated sand…
文中还分析了覆膜砂在常温和高温下的变形—断裂机理，指出其热稳定性是影响壳型铸件尺寸精度的首要因素。
Wellface stability and formation sand production in the process of production is one of tough problems in remaining oil production.
生产过程中的井壁稳定性和地层出砂问题是剩余油开采过程中的主要难题之一。
The enlargement of the channel scouring will favorable to the increase of the channel dis- charge, however, the illegal sand mining will be quite unfavorable to the stability of the channel as well.
河道冲刷扩大将有利于增加河道泄量，但无序采砂也将给河道稳定带来不利影响。
The dike stability computation in natural strength of soft soil, the effect of increasing dike stability by berm and the experiment about stabilization of dike foundation by using sand drains m…
并介绍在天然强度下软基的稳定计算方法，及对极软弱地基采用排水固结法加固以提高堤基的承载力。
When drill hole in sandy soil the desander should be timely turned on to reduce the sand content and ensure the drilling progressing and stability of the hole.
在砂土层中钻进时，要及时开启泥浆分离器，降低含砂率，保证钻进速度和孔壁的稳定。
Steady state strength is an important parameter in evaluating the stability of sand deposits against flow liquefaction.
残余强度或稳态强度的确定是砂土液化研究中的重要课题。
Manganese content, binding ability of manganese oxide layer on quartz sand and zeolite substrates and stability of MOCS and MOCZ were also investigated.
分别从静态法方面研究了锰氧化物对铜和铅离子吸附性能，从静态法和动态法方面综合研究了MOCS和MOCZ对铜和铅离子吸附性能。
In this paper, the effect of molding pressure on the strength and hydrochloric acid stability of autoclaved lime_stone sand brick is studied.
研究成型压力对蒸压灰砂砖抗压强度和耐盐酸腐蚀能力的影响。
In this paper, the effect of molding pressure on the strength and hydrochloric acid stability of autoclaved lime_stone sand brick is studied.
研究成型压力对蒸压灰砂砖抗压强度和耐盐酸腐蚀能力的影响。
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