软弱地基条件下大型矿石堆场斗轮机基础的设计与研究

通过建立矿石堆场地基的二维有限元模型,对矿石堆场下软弱地基的应力变形进行模拟计算,计算中采用了土体的线弹性模型和剑桥模型进行对比分析。重点研究了各种工况下堆场地基的水平、竖向变形问题,对荷载作用下斗轮机基础的长桩基、短桩基以及片筏基础设计方案进行计算,并与无基础方案进行对比分析,得出各种工况下不同基础的变位情况。计算研究成果直接为工程地基处理方案的确定及斗轮机基础的详细设计提供了依据。     

Research on the calculation method of penetration resistance of bucket foundation for offshore wind turbines

The cost of foundations for offshore wind turbines constitutes approximately 35% of the total cost of an offshore wind farm. The bucket foundations show significant potential due to their superior transportation and installation efficiencies compared to pile foundations, leading to potential cost savings for the foundation of up to 30%. For a bucket foundation to be installed successfully, the penetration resistance must be predicted. However, there is currently a lack of clarity on how to select a suitable calculation method for penetration resistance based on known geological parameters to guide construction. In order to evaluate the current methods of calculation for bucket foundation penetration resistance, this study combines theoretical calculation methods with two sets of practical measurement data from the field. The calculation methods of penetration resistance for bucket foundation are first reviewed and categorized. The applicability range of each method and the parameters needed for calculation are given. Next, according to the measured data in the process of penetration of bucket foundation on site, the evolution of compartment pressure, tilt angle, resistance and required suction in the process of penetration are analyzed. Finally, the reviewed methods are compared to the results of two practical projects in order to analyze the differences between them and make recommendations for the calculation technique. The findings can be used as a guide for calculating the bucket foundation's penetration resistance in complex geological conditions.     

冲击压实改造技术在广韶高速公路旧水泥面板大修中的应用

通过在广韶高速公路大修中旧水泥面板冲击压实改造技术的应用,可有效减少和缓解旧水泥路面反射裂缝。文中着重介绍冲击压实技术的施工方案、施工工艺、质量控制等。从应用效果来看,冲击压实改造技术比传统施工方法（换板、压浆）具有明显的社会效益和经济效益。     

船舶防腐涂料的可持续发展方向

文章通过对涂料的功能、涂料的组成、船舶防腐涂料的防蚀机理及多层防腐蚀涂膜构成的介绍,并结合当今世界船舶防腐防污涂料的特殊需求,阐述了船舶防腐涂料的可持续发展方向。     

软弱土质在地基处理中的应用

提出了软土、盐渍土地基路基换填处理方案,在实际工程中采用粒料石灰土换填层和土工布、荆笆帘、粒料换填层两种换填层结构处理软土盐渍地基.     

桔皮鲜映性仪用于面漆的外观改善

简述桔皮鲜映性仪的基本原理,并借助桔皮鲜映性仪,对客车面漆外观进行改善。     

SBR改性乳化沥青稀浆封层在乡村道路路面工程中的应用

通过对SBR改性乳化沥青稀浆封层技术在乡村道路砂石路面上的应用,提出作为路面封层的配比、生产工艺及施工工序。SBR改性乳化沥青降低了造价成本,提高工作效率,减少环境污染,提高路面封层质量。     

冲击断裂稳固技术在旧水泥混凝土路面改造中的应用

摘要：冲击断裂稳固法是降低旧水泥混凝土路面加铺层出现反射裂缝的机率的有效方法。文中分析了旧水泥混凝土路面进行加铺层改造时对旧路面进行断裂稳固的必要性,介绍了冲击式压实机应用于旧水泥混凝土路面改造的工艺原理,并结合国道324线鹤山段路面大修改善工程的施工阐述利用冲击式压实机对旧水泥混凝土路面进行断裂稳固的施工工艺与质量控制方法。     

发光材料掺量对蓄能发光涂料性能的影响

简要介绍了蓄能发光涂料的作用和意义,探讨了发光材料掺量对蓄能发光涂料制备工艺以及发光性能的影响。     

基于EDEM仿真的斗轮堆取料机取料机理研究

斗轮堆取料机斗轮机构的设计主要参考《斗轮挖掘机设计规范》,设计结果偏于保守,为拓展该领域研究,应用离散元法及相应分析软件EDEM对不同斗轮转速下斗轮机构取料过程（包含挖料、提升和卸料）进行仿真,对比分析仿真结果与理论计算结果后得出：挖掘阻力与斗轮转速有关,随转速增大,挖掘阻力相应增大,且在重力式卸料转速范围内,卸料区间整体左移并越发分散,5r/min时卸料效果最好.