| 1. | In several altered granites and gnoisses nascimento monitored swelling began almost immediately after the water was added .
在Nascimento观察的几块蚀变的花岗岩和片麻岩中膨胀作用是在加水之后几乎是立即就发生。 |
| 2. | Correct treatment of plate thermal epeirogeny shows the previous wholly-vertical contraction/expansion requirement to be erroneous .
对板块热力造陆作用的正确分析表明，先前那种认为收缩膨胀作用完全是垂直方向上进行的看法是错误的。 |
| 3. | In chapter 2 , we consider the existence of expansive zd actions on continua
第二章，考虑连续统上z ~ d膨胀作用的存在性问题。 |
| 4. | In several altered granites and gnoisses nascimento monitored swelling began almost immediately after the water was added
在nascimento观察的几块蚀变的花岗岩和片麻岩中膨胀作用是在加水之后几乎是立即就发生。 |
| 5. | At present , an anti - crack method is that expansive agent is mixed into concrete . the proper amount of the expansive agent mixed into concrete can ’ t only lessen the shrinkage of concrete but also improve the dense of concrete , the anti - infiltrate of concrete swell too
适量膨胀剂的掺入,不但可以明显的减少混凝土的收缩,而且由于混凝土自身的膨胀作用,处于限制状态下的混凝土密实性得以提高,其抗渗性能也得到显著改善。 |
| 6. | It shows that fly ash added may restrain expansion of wecam and improved its soundness . 6 . as for wecam , its soundness should be tested appropriately with concrete specimens autoclaved at 200 for 6h , its limit expansion should be determined from 0 . 1 % to 0 . 2 %
5 .在其它条件不变的情况下，外掺氧化镁混凝土的压蒸膨胀率随着粉煤灰掺量的增加而减小，表明粉煤灰的加入具有抑制外掺氧化镁混凝土的膨胀作用，提高了混凝土的安定性。 |
| 7. | Effect of steel pit on the mechanical property was discussed in succession . numerical results show that exponential relation exists between the yield strength and depth of corrosion pit . the work in this part is the theoretical foundation on the study in modeling of constitutive behavior of the corroded concrete and rusty rebar
基于微观腐蚀机理分析了硫酸盐介质对混凝土的膨胀性腐蚀作用，从理论上研究了由于膨胀作用引起混凝土内部产生的膨胀应力；讨论了钢筋表面锈蚀坑对钢筋力学性能的影响，建立了钢筋屈服强度与蚀坑深度之间的关系；为受腐蚀混凝土和锈蚀钢筋本构关系的建立提供了一定的理论基础。 |
| 8. | Through analyzing the effect of temperature and nitrogen on crude oil viscosity the influences of different nitrogen injection volume and injection modes on steam displacement are contrasted , the mechanism of nitrogen - assisted steam stimulation is clarified , which includes : heat carrying capacity is raised , the saturation of remaining oil is reduced after nitrogen - assisted injection is made ; crude oil flow is enhanced because of nitrogen compression and dispersion and the change of oil flow shape ; water back - production rate is improved by expanding the steam sweep volume and compensating in - situ energy ; steam distillation effect is enhanced
通过分析温度、氮气对原油粘度的影响，对比不同注氮量、不同注入方式等对蒸汽驱油效果的影响，弄清了氮气辅助蒸汽增产的机理主要表现在：氮气辅助后增加携热能力，降低残余油饱和度，氮气的压缩膨胀作用分散和改变了原油流动形态，增强了原油流动性；扩大蒸汽的波及体积，补充地层能量，提高回采水率，强化蒸汽蒸馏效应。 |
| 9. | The results of experiment on the relationship between tensile strength , shrinkage , self - desiccation shrinkage and flat restraint cracking show that sra ' s physical shrinkage - reducing effect and ea ' s chemical expansion effect greatly enhance the volume stability of concrete and reduce the probability of early - cracking
对减缩剂与膨胀剂抗拉强度、干缩、自干燥收缩及平板约束开裂的试验结果表明： sra的物理减缩作用及膨胀剂的化学膨胀作用，大大提高了混凝土早期的体积稳定性，降低了早期开裂的概率。 |
