1. Introduction 2. Formulation of a General Simple Method for Calculating Consolidation Settlements of Multi-layered Soils Exhibiting Creep under Staged Loading 3. Verifications with Fully Coupled Finite Element Method and Measured data 4. Conclusions and Remarks Case I: Consolidation Settlements of a Clay Layer with OCR=1 or 1.5 Case II: Consolidation Settlements of Layered Soils with Vertical Drains under Staged Loading-Unloading-Reloading Case III: Consolidation Settlements of Test Embankment on Layered Soils with Vertical Drains under Staged Loading
3.1 General Principles for Designing Safer Chemicals 3.1.1 General Principles for Designing Safer Chemicals 3.1.2. Building the foundation for designing safer chemicals 3.2 Techniques in designing of safer chemicals ❖ 3.2.1 毒理学分析及相关分子设计 ❖ 3.2.2 利用构效关系设计安全的化学品 ❖ 3.2.3 利用基团贡献法构筑构效关系 ❖ 3.2.4 利用等电排置换设计更加安全的化学品 ❖ 3.2.5“软”化学设计 ❖ 3.2.6 用另一类有相同功效而无毒的物质替代有毒有害物质 ❖ 3.2.7 消除有毒辅助物品的使用