| 1. | According to this model , the s - n curve of a material can be measured with much less samples than before
强度衰减模型结合强度增长模型，可以为基于结构强度潜力充分发挥的轻量化设计提供技术指导和评价依据。 |
| 2. | So it is necessary to consider the structural shear strength increase , then the results calculated of foundation stability is more reliable
因此，只有考虑到地基土的结构强度增长，对每级堆载地基稳定性进行计算才更为合理。 |
| 3. | By the studying to some computing methods of intensity growth , the result is the effective consolidation stress theory is more normally
本文对强度增长的几种计算方法做了讨论分析，得出有效固结应力法较为符合工程实际的结论。 |
| 4. | By the model , the relationship between dosage and varieties of hardening agent and the strength increasing law of stabilized soil can be interpreted reasonably
该模型可以较好地反映固化剂掺量和种类与固化土强度增长规律间的关系。 |
| 5. | The strength line of consolidation undrained shear of field soft clay is polygonal . on the basis of the character , and the calculation formula of stability and strength increase of structural soft clay ground can be obtained
原状结构性软土的固结不排水强度包线为折线型，根据此特征给出了考虑结构性影响的预压地基的强度增长和稳定安全系数计算公式。 |
| 6. | Water stability and strength increasing mechanism are researched and the changing trend and degree of maximum dry density , the optimum moisture and the intensity of the admixture are gained through mixing into clay
通过在风化料中掺入粘土的对比试验，研究风化料加入掺加剂后的水稳定性和强度增长机理，得出掺入粘土后风化料最佳含水量、最大干密度、强度的变化趋势和程度。 |
| 7. | The tests show that the activity of the compound admixtures of lithium - salt residue and fly ash is higher than that of fly ash and there is a optimum ratio between the lithium - salt residue and fly - ash . the activity of the compound admixtures is of importance for the later strength of concrete , especially for the 60d and 28d strength
大掺量复合掺合料混凝土强度试验中，该复合掺合料活性对混凝土后期强度的提高很重要，尤其60d 、 28d强度增长较大，但180d比60d增长幅度较小。 |
| 8. | Based on comparison of several technical schemes , the method of sand bedding pre - elevating and step water - filling pre - compressing is adopted . so the dissertation is consist of two parts : ( 1 ) the applicability study for the method of sand bedding pre - elevating and step water - filling pre - compressing , including numerical analyses for the thickness of sand bedding , the consolidation , settlement and stability of foundation , drainage , possibility of foundation liquefaction under seismic loading , et al . ( 2 ) monitoring at construction stage and checking the effect of foundation treatment , including the measurements of the settlement velocity and non - uniform settlement of ring beam under the tank , pore pressures and horizontal displacements in foundation , the pressure distribution at the bottom of oil tank and the strength increase of soils
通过多种技术方案比较，最终选择了技术先进的砂垫层预抬高分级充水预压法，论文工作主要由以下两部分组成： ( 1 )砂垫层预抬高分级充水预压法的适用性研究，其中包括砂垫层厚度、地基沉降与固结度、地基稳定性、降水、地震作用下砂土液化的可能性等方面的计算分析； ( 2 )施工监测与地基处理效果检验，其中包括油罐环梁基础沉降速率与不均匀沉降程度、各分级充水加载阶段地基超静孔压与深层水平位移、油罐底板压力分布及地基土强度增长等方面的实测与数据分析。 |
| 9. | By analyzing data of in - situ and laboratory in a certain project , the foundation stability is calculated with considering structural shear strength and meanwhile the foundation stability is also calculated with apparent strength increase total stress and the effective stress method considering the over - static water pressure ; and then the result could be gained : conventional method is conservatism
结合具体的工程实例，对各种原位和室内试验进行统计分析，对地基土进行考虑结构强度增长的总应力法稳定性计算，并与考虑表观强度增长的总应力法和考虑超孔隙水压力的有效应力法地基稳定性计算进行对比。 |
| 10. | In this paper , the confecting technique on many ingredients " hpc was studied , and the optimum ratio of many ingredients in hpc was confirmed by regression method in spss and optimizing method in matlib , considering mechanics performance of high performance concrete and collapsing slump of hpc mixture . c : bf : fa : sf : uea = 3 : 1 : 1 : 0 . 2 : 0 . 02 . we confected out hpc with the ratio
用这一比例关系我们配制出塌落度达130mm 、早期强度高、后期强度增长幅度大的高性能混凝土，其7d 、 28d和56d的抗压强度分别为47 . 55mpa 、 71 . 05mpa和88 . 8mpa ，后期强度增长率可达到25 。 |
