Analysis and control of stratum settlement of shallow - buried concealed tunnel excavation works of urban subways 城市地铁浅埋暗挖隧道地层沉降分析与控制
Particle size analysis ; sedimention analysis ; principles ; evaluation equations for determination of quantities in the field of centrifugal force 颗粒度分析.沉降分析.原理.离心力场中量测定的评定公
Test method for properties of investment casting slurry - part 7 : the torque balance sedimentation analytical method for the determination of refractory powder granularity 熔模铸造涂料性能试验方法第7部分:扭力天平沉降分析法测定耐火粉粒粒度
This paper presents the analytical analysis of settlement before foundation reatment , design of dynamic compaction 、 construction procedures and implementation ( arts and crafts ) of dynamic compaction as well as associated problems encountered in construction 本文主要研究地基处理前的沉降分析、强夯设计、强夯法施工工艺和在施工过程中应注意的问题。
One of the frontier recearch of basin analysis in recent years is to analyze the tectonic subsidence history of depositional basins which occur in orogens at different geohistory stage , and to discuss the geodynamic processes involved with the basins 摘要对造山带各地史阶段的沉积盆地进行构造沉降分析，进而探讨其地球动力学过程，是近年来盆地分析的前缘研究之一。
This thesis expresses the elastic theory of the soil element increment for the settlement analysis and calculation of the foundation soil . and puts forward a simplified and experiential formula for practical project according to consolidation theory of unsaturated soil 采用土体单元增量的弹性体理论，对地基土进行沉降分析和沉降的简化计算；又根据非饱土的固结理论，提出一种便于工程应用的计算路堤沉降量的经验公式。
This paper focuses on the problem of semi - infinite elastic body filled with the material which behaves differently in tension and compression . the contents include : ( 1 ) the solution of elasticity theory for the material incapable in tension is established by introducing heaviside function ; ( 2 ) the solution of elasticity theory with different modulus in tension and compression is established based on the solution of elasticity theory for the material incapable in tension and mindlin ' s solution ; ( 3 ) the solution of elasticity theory with different modulus in tension and compression is employed to analyze the stress of pile foundation ; ( 4 ) the solution of elasticity theory with different modulus in tension and compression is employed to analyze the settlement of pile foundation 本文考虑材料的拉压性能不同的特点，对半无限空间内部作用竖向集中力问题进行了新的研究，做了如下工作： ( 1 )引入heaviside函数，建立了不能承受拉应力材料的弹性理论解； ( 2 )基于不能承受拉应力材料的弹性理论解和mindlin解，建立了拉压模量不同材料的弹性理论解； ( 3 )将拉压模量不同材料的弹性理论解应用于桩基应力分析； ( 4 )将拉压模量不同材料的弹性理论解应用于桩基沉降分析。
Piled raft foundations are ordinarily adopted for the tall building and heavy structure because it possesses large capacity and well performance of reducing settlements and balancing differential settlements . how to reduce differential settlements are the most abstruse and focal problems in design . to achieve to the design objects , its crucial to know the piled raft foundations how to wok 桩筏基础的承载力、沉降分析、尤其是建立在桩?土?筏共同作用基础上的以减少差异沉降为目的的调平分析是目前桩筏基础设计中的难点与热点，清楚的了解桩筏基础的工作性状对满足设计目标至关重要。
On the basis of the uncertainty load factors which influence embankment ' s settlement , the vehicle load and the step - exert construction load are studied by quantity . according to the terzaghi ' s consolidation theory , the average consolidation degree formulas of the corresponding situations are inferred . moreover , the feature of the embankment ' s consolidation in the effect of uncertainty load factors is studied 并且基于影响路基沉降分析的不确定性荷载因素，对车辆荷载及填土荷载逐级施加两种情况进行了量化分析：依据太沙基固结理论，推导了两种情况下的土层平均固结度公式，由此分析和讨论了不确定性荷载因素影响下路基固结的特性。
1 sedimentation anyslys of soil under the action of deadweight ; 2 sedimentation anyslys of structure in using ; 3 endogen force anyslys of structure in using ; 4 soil remolding type anyslys ; 5 homogenous flush works anyslys ; 6 anyslys of the structure sedimentation effects of different flushing amount at the same place ; 7 anyslys of the structure sedimentation effects of different flushing places ; 8 anyslys of the structure sedimentation effects of different horizontal flushing places ; 9 anyslys of the structure sedimentation effects of different vertical flushing places ; getting the different between the endogen force of common structure and that of slant structure . the rule of stricture sedimentation and the effect of different soil remolding type were also gained 对掏土纠偏过程做了以下9个方面的分析： 1 、土体在自重作用下的沉降分析； 2 、建筑物在使用阶段的沉降分析； 3 、建筑物在使用阶段的内力分析； 4 、土体受扰动类型分析； 5 、均匀冲水施工过程分析； 6 、同一个地方冲水量大小不同对建筑物沉降影响分析； 7 、不同沉井冲水对建筑物沉降影响分析； 8 、进深不同的土层冲水对建筑物沉降影响分析； 9 、不同埋深土体冲水对建筑物沉降影响分析。
