Abstract:石油钻井技术发展的总趋势是以信息化、智能化、自动化为特点,最终实现自动化钻井.提出了21世纪初期(2001～2020年)应加速研究与自动化钻井有关的主要技术复杂结构井的产业化技术,钻井信息技术,新型绿色无污染钻井液,随钻测量和随钻地层评价技术,井下动态数据的采集、处理与应用系统,信息流闭环系统及旋转导向闭环钻井技术,现代平衡钻进技术,柔管技术等,继续解决深井、超深井钻井技术难题,进一步完善和推广油气层保护技术和小井眼产业化技术,加强钻井理论研究.

Abstract:This paper describes the application and research on the large diameter drilling and raise at home and abroad. The difference between large diameter drilling and oil drilling is reviewed with their characteristics. The theoretical and technical problems to be researched for large diameter drilling are outlined with its application prospect appraised.

Abstract:The present situation of CBM development around the world is analyzed. It is pointed out that CBM reservoirs in China are featured with low pressure, low permeability, poor desorptionability, insufficient drive power and regionally appeared pulverized coal lenses etc., which makes the commonly used CBM development technology severely limited in the development of CBM in China. A series of development technologies which are suitable for low pressure and low permeability of CBM resources in China are presented, including under-balance drilling and cavity completion technology, and multi-lateral horizontal well and cavity completion technology.

Abstract:介绍了湖口大桥漂石层、胶结砂姜石层及灰岩岩溶地层条件下,大直径钻孔灌注桩和深水区嵌岩桩的施工经验.在上述地层分别采用了冲击钻进、气举反循环滚刀钻进及冻结法成孔施工.重点介绍了施工难点和技术对策.

Abstract:通过总结多年来的施工经验,针对目前国内旋挖钻机的类型和使用状况,提出了一些存在的问题,进行了分析探讨,并对设备选型提出了建议.

Abstract:The mathematical model formula of the trench wall stability is deduced through analysis of the effect of wall protection mud on the diaphragm trench wall according to the physical and mechanical properties of soil ground and the ground water table. The relevant wall protection measures are proposed to prevent the collapse of trench walls.

Abstract:结合四海香大厦基坑支护工程,介绍钻孔灌注桩连续墙支护、锚杆、锚喷网支护和降水井等工程的施工技术与方法,并介绍基坑周边建筑物沉降的控制方法及承压水的处理方法.

Abstract:介绍了振孔高压喷射注浆技术的发展概况和应用情况,分析了该技术的先进性,总结了该技术的施工程序和施工参数以及适用范围,并通过工程实例加以详细说明.

Abstract:分析了长春市某大型厂房基坑开挖中发生涌水、涌砂的原因,在多种治理方案中,选择了化学注浆法进行处理,形成注浆-排桩联合支护体系,并取得了成功.介绍了单液单系统及双液单系统的注浆设计及施工要点.

Abstract:针对连云港-霍尔果斯高速公路沙河大桥钻孔灌注桩工程中桩孔直径大、桩身长、孔壁易失稳垮塌、单桩砼灌注量大等施工难题,采取了有效技术措施,取得了良好效果.介绍了施工条件及施工技术措施,总结了施工体会和认识.

Abstract:阐述了钻心法在混凝土灌注桩质量检测中的应用原则,在此基础上,全面介绍了钻心法的特点、技术要求、工艺过程、心样加工和混凝土的强度计算等内容.

Abstract:介绍和分析了钻孔灌注桩后压浆技术的压浆机理,并根据在上海地区基础桩基工程中的试验和应用经验,提出了钻孔灌注桩后压浆技术的单桩极限承载力计算和施工方法,以及设计与施工过程中的注意事项.

Abstract:杭州华园宾馆二期综合楼工程位于抛石挤淤埋填河浜地段,且周邻建筑物距离较近,基坑围护工程施工难度较大.介绍了其基坑围护工程的设计与施工以及质量保证措施.

Abstract:The water-pressure pulse sealing injector is a grouting device which realizes the dynamic pressure grouting with the pulse pressure produced by water pressure pulse. This paper describes the principle, features, structure, working procedure, performance index and field testing results of the sealing injector.

Abstract:The article describes in detail the structural characteristics, dynamic process and construction technique of interrupting blasting bolts. Based on the experimental analysis of different types of interrupting blasting bolts, it is concluded that use of the bolts for soil support is feasible and reliable.

Abstract:A multi-parameter auto-monitor system has been developed by the combination of the computer technology with pumping test. It can detect the down-hole water level, water temperature and yield synchronously and in real time. It has been used and proved in the field. The components, testing principles, main technical specifications and field testing results are described.

Abstract:1　现状与问题ＧＰＳ - 10型大口径工程钻机是我国桥梁、铁路、公路、高层建筑的大口径钻孔灌注桩施工的主要机型。美中也有不足之处 ,如其主动钻杆长度 5 .80ｍ ,导正性能较差 ,垂直度只能由小补心和主卷扬钢丝绳控制 ,开孔时经常遇到孔斜 ,开孔超径严重 ,转速上不去 ,影响钻进效率。尤其突出的一点是 ,高压水管经常缠住主动钻杆 ,工人们只好用毛竹或铁杆插在水龙头吊环上 ,控制高压水管不缠绕主动钻杆 ,这严重影响工人的人身安全。为解决这一问题 ,笔者设计了用钢丝绳为导正索 ,控制水龙头在钻进过程中不会“

Abstract:介绍了L65-35丛式井组在生产管理和施工技术方面的一些经验.占用较少的地场,施工多口井,为油田的开发提供了一个成功的模式和典型范例.

Abstract:在分析岩体爆破作用机理和液态CO2 井喷机理的基础上 ,提出了井内爆破联合液态CO2 洗井的工艺。 4口水井的工程实例证明 ,该工艺的效果显著。

Abstract:论述了在国家实施西部大开发及西部找水计划形势下采用先进钻探技术,即快速钻探技术进行水资源快速评价的必要性;介绍了这套快速钻探技术方法的总体方案、技术方法和主要装备的配置,以及采用先进钻探技术方法实施水资源快速评价的2个工程实例.

Abstract:在某石灰石矿岩心钻探中,分别试验应用了硬质合金液动冲击回转取心钻进、金刚石回转取心钻进和硬质合金回转取心钻进,通过对比,硬质合金液动冲击回转取心钻进效率高、成本低、回次进尺长、取心率高,取得了较好的效果.

Abstract:坑内钻探经常遇到钻机液压系统压力不足和钻进硬岩层时钻头进尺困难两大问题,严重影响了钻探效率.根据多年的实践经验,提出采取逐一排除法、腐蚀和弱包镶钻头法分别解决这2个问题.

Abstract:阐述了GB3423-82和DZ1.1～1.3-84几项国标和部标中关于螺纹手拧紧密距的制定原则,对φ71×5绳索取心钻杆的手拧紧密距进行了验算,分析了上述标准中手拧紧密距的合理性,提出了修改意见.

Abstract:介绍了非开挖顶管铺设大直径管道的施工工艺,分析了顶管施工的力学问题,为安装管道和选择顶管设备提供了必要的理论依据.

Abstract:Laboratory research on the percussive rotary rock fragmentation mechanism have been carried out on the down hole percussive rotary testing bench which simulated the real down-hole situations. The basis for DTH hammer bit insert arrangement and drilling parameter selection presented.

Abstract:讨论了铁路隧道施工中的瓦斯隧道合理的界定标准、监测方法、正常防范的施工安全技术和紧急防范对策,并通过黄莲坡瓦斯隧道工程实例,强调瓦斯隧道施工安全技术的重要性.