复杂岩基地质海上风电高桩承台基础关键技术研究及应用

本文针对福建海域复杂的地质特点,以岩基海床高桩承台基础为研究对象,对基础的承台选型、承台结构设计进行分析,结合基础的载荷计算、结构的内力建模、基础的实际监测数据,研究表明高桩中承台嵌岩基础满足设计规范要求。同时,以嵌岩基础施工为例,从桩基施工、承台施工2方面详细阐述了基础施工工艺,实践表明,采用打桩架固定式沉桩、整体式嵌岩平台、装配式预制钢套箱工艺可显著提高施工效率,满足工程建设要求。该高桩承台基础设计和施工方案可为东南沿海类似工程提供参考。     

Geosynthetic-sheet pile reinforced foundation for mitigation of earthquake and tsunami induced damage of breakwater

Earthquake and tsunami impose great threats on the stability of a breakwater. Foundation of the breakwater is weakened by these forces, and it may result in collapse of the breakwater. Lateral flow of seabed soils take place beneath the breakwater, and excess pore water pressure is generated in the foundation by an earthquake that precedes tsunami. These factors may lead to excessive settlement and horizontal displacement of the breakwater. Tsunami introduces additional instability to the deformed breakwater. Due to water level difference between seaside and harborside of the breakwater during a tsunami, seepage occurs through its foundation, and it may cause pipping of seabed soils. Tsunami induced scouring of mound is also a big problem for the stability of the breakwater foundation. Finally, these result in failure of the breakwater foundation. Due to failure of its foundation, the breakwater may collapse and cannot block the tsunami. It results in entering of the tsunami in coastal areas. In order to make a breakwater resilient against earthquake and tsunami induced damage, reinforcing countermeasures were developed for foundation of a breakwater. Geogrid, gabions and sheet piles were used for reinforcing a foundation model. The effectiveness of the model is evaluated through physical modeling for mitigating the earthquake and tsunami induced damage. Shaking table tests were performed to determine the effectiveness of the reinforced model under different earthquake loadings. Tsunami overflow test was conducted on the same deformed model in order to see the effects of tsunami on the model. Comparisons were made between the unreinforced and reinforced foundations, and it was observed during the tests that the reinforced foundation performed well in reducing the damage of the breakwater brought by the earthquake and tsunami. Overall, this study is useful for practice engineering, and the reinforced foundation model can be adopted for designing a breakwater foundation to reduce damage triggered by an earthquake and tsunami in the future.     

工程材料及机械制造基础课程立体化教学与改革的探讨

本文阐述了工程材料及机械制造基础课程整合与课程教学改革的原因、改革的措施。从结果上看,激发和提高了学生的学习兴趣,加强了理论联系实际和工程应用能力培养,这一课程整合与教学改革达到了目标,取得了良好的实践效果,探索了该课程立体化教学和教学实践改革的思路与方法。     

某平炉引风机振害基础的纠偏与加固

某平炉引风机基础座落在松软地基上，在长期的负荷运转中，产生了严重的沉降、倾斜、断裂，使风机运行处于非正常状态，为排除隐患，确保风机的连续运转，本文作者设计并实施了一系列加固、纠编、补强、减振措施，保证了一号平炉的连续安全生产。     

某楼房的纠偏和地基加固

河南平顶山某煤矿住宅楼在施工期间及其使用过程中，有明显的不均匀沉降。文中介绍了该工程采取巷道封闭水平注浆、淤泥质粘土层挤压注浆、掏土及降水等措施进行建筑物纠偏和地基加固的经验。工程实践表明，该方案成本低、工期短、是一种行之有效的方法。     

论风景园林的学科体系

论述了中国风景园林学科的概念、基础、核心、地位和学科体系结构,在中西比较的基础上讨论了学科的名称和发展前景.     

土工织物加筋垫层处理大面积建筑软基实践

根据深圳福田保税区停车场及佛山P．L．F摩托车主厂房地基处理工程中采用土工织物加筋垫层处理软基的成功实例，介绍了加筋垫层在这些工程中的设计及施工应用方法。     

“SMW 工法”在上海地铁车站中的应用

地铁车站全部采用SMW工法建造围护结构在国内是很少见的,本文结合上海地铁M8线嫩江路车站的工程实践,对这种围护结构在设计和施工方面作初步总结和分析,以推广该工法在类似深基坑中的应用.     

高层建筑筒体下桩筏基础设计方法

针对不同的受力特点，对工程中常用的桩筏基础进行分类，并讨论了目前常用的设计方法。重点探讨了桩筏基础空间桁架理论模型，为进一步研究明确了思路。     

圆（环）形基础基底压力的计算

本文主要对《高耸结构设计规范》中圆(环)形基础基底压力的计算进行分析,并据此对附录C中的计算系数进行修订。