As the commonly used foundations in the bridge engineering , large - diameter bored piles have many advantages , such as high bearing capacity , good stability , little and homogeneous vertical settlement , facility for mechanician construction and good applicability 桩基础是一种常用的桥梁基础型式，具有承载力高、稳定性好、沉降量小而均匀、便于机械化施工及适用性强等特点。
Abstract : according to working characteristics of the mechanical construction system of cement concrete pavement , this paper presents the mathematical model of this system by applying the theory of stochastic service system to describe the motion law of the mechanical construction system 文摘:根据高等级公路水泥砼路面机械化施工工艺，利用随机服务系统理论，提出了水泥砼路面机械化施工系统的数学模型，动态地描述了水泥砼路面机械化施工系统机械运行的一般规律
Rock - fill dam is the one chief type of soil - rock dam , there are much virtue of safety function , adaptability used the local material , be benefit to mechanical building , be short in building time and low in cost , being simple in the building during closure and diversion , etc . it suit the condition of our nation and the environment where the water conservancy works and hydroelectric power plant located , we accumulate the ample practical experience and a series of achievement in scientific research and become a model of having ample competition in the construction and development of piled rock clam 堆石坝是土石坝的主要坝型之一，它具有适应性强，就地取材，便于机械化施工，工期短，造价较低等优点，在水利枢纽设计中被广泛应用，而且已经积累了丰富的实践经验和成套的科研试验成果，在水利枢纽的坝型选择中具有很强的竞争力。就堆石坝而言，根据筑坝方式和筑坝材料的不同，也有多种坝型。
This paper deeply analyzed the principal safety accidents and itsreasons which are prone to happen at high - mechanized construction sites . the proposals on management of construction machine safety are presented based on the projects construction stages as follows : the beginning of construction , during the construction and after completion of the constraction 文章具体分析了建设施工机械化程度较高的施工现场最容易潜伏发生的主要安全事故及其原因，参照有关机械化施工方法和建设机械的管理方式，提出在建设工程施工任务开始时、施工期间、任务完成后如何做好建设机械的安全管理的建议。
The construction techniques of the asphalt concrete core have developed very rapidly . in the construction techniques , it was developed from the handwork or qusi - mechnical construction into mechanical construction . the producing , processing and transporting of material , bathing , mixing and transporting of mixed asphalt , laying and rolling of mixed asphalt and transporting of material was archived by specialized machines 碾压式沥青混凝土心墙施工技术发展较快，在施工技术上，已从过去的人工施工、半机械化施工逐步发展为机械化施工，原材料生产、加工、输送，沥青混合料的配料、拌制和运输，沥青混合料和过渡料的摊铺、碾压等都由专用机械设备来完成，一些控制系统已实现了自动化。
The structure and the construction method of a new type of fascine are introduced herein , of which the advantages are as the follows . ( 1 ) the shortages of the complicated construction process and low construction progress with low efficiency are overcome . ( 2 ) the fascine cage can be industrially made , so as to reduce the working procedure in site . ( 3 ) the heavy construction equipments can be used for the mechanical construction of the single large size fascine cage with high construction speed and intensity . ( 4 ) it is favorable to the environment protection as the amount of the fascine material being decreased 摘要介绍了新型埽工笼埽的结构形式、施工方法，其优点为： ( 1 )克服传统埽工施工工序复杂、速度慢、效率低的缺点； ( 2 )笼埽可工厂化生产，减少现场作业工序和作业面后移； ( 3 )充分利用大型施工机械进行大体积单个笼埽结合机械化施工，作埽速度快、强度高； ( 4 )减少柳料用量，利于环境保护。
Abstract : based on the description of the motion law of the mechanical construction system using the mathematical model , this paper presents the standard methods and steps to design and evaluate the mechanical construction system of the cement concrete pavement . at the same time , it offers an example to evaluate the practice of shen - shan highway 文摘:根据水泥砼路面机械化施工系统的数学模型所描述的水泥砼路面机械化施工系统机械运行的一般规律，提出了系统设计与评价的标准、方法和步骤，结合深(圳) 、汕(头)高等级公路水泥砼路面机械化施工的实践，示例系统评价的方法
Integrate with construction building and design , municipal and governmental building , steel structure , installation of water , power , heating and rest room , premaking parts , hoist , decoration , fitting and making of aluminum alloy with comprehensive service . . the company has power machinery equipment to build 公司集建筑施工、设计、市政施工、钢结构、水电暖卫、装饰装修、铝合金制作安装等为一体，实行一条龙服务，公司机械设备力量雄厚，拥有与之配套的各种机械化施工设备。
This article recommends three kinds of criterion on judging whether the hydropower construction design or optimizing is reasonable , that is " schedule , quality and cost " , it describes mathematics mode and optimizing of concrete mechanization construction system and provides a new method of " combined management of schedule , quality and cost " , and founds the relations of distribute quotiety of the working procedure unit , quality unit , and cost . in the field of management , it indicates the localization of parlance " consumer is the god " , and advances the relations of previous and descend working procedure are the relations between consumer and user . their relations are new relations of serve mutually and create con dition for each other ' s 本文介绍了评价水电工程施工系统设计或优化合理与否的三种标准为进度、质量和成本，描述了大坝砼机械化施工系统的数学模型及优化，提出了“进度、质量、成本联合管理”的新方法，建立了工序单元、质量单元和成本费用之间的分配系数关系，在管理方面，指出“用户就是上帝”这种说法的局限性，提出了上道工序和下道工序之间的关系为顾客和用户之间的关系，它们是互为对方服务，互为对方创造条件的新型关系的观点和方法。
