河湖冲击地带不良地质处理及路基施工

针对河湖冲击地带不良地质的特点,介绍了软土地基处理和路基施工的一些成功做法。     

天坪岭隧道施工中光面爆破优化设计

天坪岭隧道采用新奥法施工方法,洞身开挖采用光面爆破技术。通过多次的试验性爆破,不断调整光面爆破参数,确定了科学合理的各种围岩条件下光面爆破的设计方案以及施工控制要点,有效地控制了断面的欠挖和超挖,从而确保了工程质量和进度。     

基于B/S的毕业设计管理系统开发

从目前高校毕业设计管理中存在的问题出发,开发了一套基于B/S的网络毕业设计管理系统。通过毕业设计管理过程分析,进行了系统需求研究、系统结构设计和系统用户界面设计,实现了毕业设计管理中的选题、过程管理、资料汇总的各项功能。     

金路牌扫路车吸盘装置的改进

为了使金路牌ZHF5050TSL扫路车更能适应各种复杂路面的清扫工况,对扫路车吸盘装置进行了分析研究,并提出了改进设计方案,经反复试验,效果良好。     

海洋平台供应船溢油回收装置的应用

结合我厂为阿根廷建造的具有溢油回收功能的VS4408海洋平台供应船,介绍了溢油回收装置的原理、组成、布置以及如何使用等情况。溢油回收装置的发展有利于提高海上油污回收能力,减少和避免各类船舶事故引起的海上石油污染,溢油回收装置的有效使用是降低和消除溢油污染的重要手段。     

厦门海底隧道穿越富水砂层施工技术

厦门海底隧道在海域浅滩段有长约610 m穿越富水砂层,是该工程施工的难点.介绍了隧道穿越该段富水砂层的施工方法.阐述了地下水控制和砂层加固处理的关键施工技术.该工程采用地下连续墙和降水井控制地下水,并与隧道内采用超前预注浆固结砂层相结合的施工方法,已安全穿越砂层最危险段,可供同类地质条件下的地下工程施工作借鉴.     

彩色沥青混合料路用性能指标的试验研究

该文以广东省的区域气候条件为例,通过马歇尔试验、CPN多轮车辙仪和紫外线辐射室内模拟等室内试验方法,研究了彩色沥青混合料的高温稳定性、水稳定性和老化特性等路用性能指标。     

驾驶模拟器在自动驾驶系统中的应用研究

自动驾驶车辆在实际道路上行驶之前的测试阶段是一个至关重要的环节。一个低成本、高效率以及高精度测量的自动驾驶车辆的测试方式,对于自动驾驶车辆的开发具有重要意义。将驾驶模拟器运用到研究自动驾驶车辆测试已是近年来的一个研究热点。基于虚拟驾驶场景的自动驾驶车辆的检测,通过组合虚拟驾驶场景的背景车辆、行人、交通灯、建筑、指示标牌等元素,研究将驾驶模拟器与虚拟驾驶场景的联合应用来测试自动驾驶车辆。设计了典型的交通场景,通过自动驾驶车辆和背景车辆的实时交互,研究自动驾驶车辆的各项性能指标。研究结果表明:该驾驶模拟器可以高度拟合人类驾驶体验,驾驶员通过驾驶模拟器控制背景车辆能够很好的模拟现实中的驾驶行为,对自动驾驶车辆的仿真测试起到了促进作用。     

货车车体油漆脱落原因分析及解决措施

简要介绍了造成货车车体油漆脱落的原因,并提出了相应的解决预防措施。     

Timing sequence changes of landscape plants in Shanghai Area,China

Based on published reports and direct observation, the common resources of landscape plant species in the Shanghai area were identified and studied in terms of the landscape characteristics of timing sequence changes over a one year time period. The results showed that there were 199 common landscape plant species in Shanghai, distributed in 67 families and 129 genera. These plants were categorized by three ornamental characteristics: flowers, foliage and fruits. The species were thus further analyzed according to the time periods which these characteristics were present. The results showed that flower ornamental distributed throughout the year, particularly from April to June, and plant species with colorful foliage could be seen every month, and particularly in November and December. On the other hand, few plant species with fruit ornamentals were observed in Shanghai area. The diversity of landscape timing sequence changes of the 199 plant species under examination was then analyzed by using the Shannon-Weiner and Simpson index formulas. The results showed that the higher diversity was observed in January, February and from August to October, while the lowest diversity was recorded from March to July and during November and December. The diversity of landscape characteristics of these plants was ranked according to foliage, flowers and fruit. Using this method, one park and one plant community were selected to evaluate the advantages and disadvantages of their time-changing plant landscape, with the goal of assessing the validity of the chosen ranking method. These results in the present study would be helpful to evaluate the plant landscape in a specified space and further enrich the diversity of plant and landscape by a target-oriented way.