Abstract:介绍了武山铜矿南副井井筒破裂的情况,从地质因素和地下水动力因素2方面对该井筒破裂的形态及原因进行分析,并对井筒破壁注浆加固施工工艺及效果进行了阐述.

Abstract:通过对"蛋壳层”的工程地质条件的分析、研究,论证其在工程建设中作5～7层民用建筑物浅基础持力层的可能性,从而在保证建筑物安全的前提下,达到降低工程造价、方便施工、缩短工期的目的.

Abstract:分析了西河水库滑坡体的特性和滑动机理,将滑坡体划分为3段张性裂隙补给源段,滑坡体移动调控段,滑坡体移动阻滞段.据此,根据设计运用风动非循环螺旋钻进施工工艺粗计划系统施工,并对施工的全过程进行科学管理,顺利完成施工任务.

Abstract:深圳机场停机坪扩建工程采用强夯方法进行软基加固,采用地质雷达对加固形成的块石墩进行检验,并采用钻探、斜孔钻探进行复验,结果吻合,说明加固方法成功,检验方法值得推广.

Abstract:通过对基础工程PHC管桩应力波反射法检测,并开挖大量Ⅲ、Ⅳ类桩进行直观检查与其对比,讨论了实测所得波形判断桩缺陷程度的问题,对缺陷桩产生原因作了分析,提出了处理方法.为检测PHC管桩时提供可参考的缺陷桩的波形.

Abstract:分析了影响钻孔灌注桩成桩质量的多种因素,并提出了相应的质量保证措施.提出了几种提高桩端阻力的方法预加载法,扩大端承面积法,滞后压浆法.

Abstract:襄樊-荆州高速公路路基广泛分布有水敏性地层、古卵石层及坚硬致密岩层,给工程地质勘探工作带来很多问题.通过对上述3种地层地质特征的研究,探讨钻探方法的使用及新型泥浆的应用.

Abstract:孔壁失稳及冲洗液漏失是在卵砾石不稳定地层中进行工程地质钻探经常遇到的问题,结合近几年的工程实践,对遇到这2种问题时的钻探技术进行了探讨.

Abstract:将网络计划技术应用于公路工程地质钻探生产中,以期达到保证工期、降低成本、提高经济效益之目的.详细介绍了网络计划技术用于公路工程地质钻探项目管理的具体实施步骤.

Abstract:用普通硬质合金和金刚石钻头钻进双江水电站坝体监测孔,均因孔斜超限而报废,使用气动潜孔锤钻进工艺,成功地完成了坝体监测孔的施工,取得了良好的效果.着重介绍了施工技术措施.

Abstract:YHZ-1 remote controlled vibro seabed sampling drill is made up of the onboard equipment and the undersea drill with the computer technology and modern electronic measuring and control technology. The description is made of the structural principle, features, technical specifications and the electrical system.

Abstract:简述了全套管冲抓成孔设备的国内外发展状况、工艺技术原理,着重阐述了CG1900型全套管设备的组成和参数、全套管施工法的主要特点、项目的生产试验和应用情况,以及其广阔的应用前景.

Abstract:SDQ-91 MWD directional coring tool consists of two parts: directional coring device and MWD tool. The working principle, technical performance and components are described. The method of finding the attitude of the rock formation structural plane by the computer through four core orientation parameters is presented. The testing and its results are also introduced.

Abstract:A new process suitable for anchor drilling in difficult formation, Dual Tube Drilling Process, is put forward in respect of the difficulty in anchor hole completion. A new anchor drill has been successfully developed. The dual tube drilling process and the anchor drill is detailed.

Abstract:指出了大口径牙轮钻头施工中存在的问题,分析了产生问题的原因并给出了相应的解决方法.

Abstract:Based on the development history of the sidetracking technology in China, the development trend of workover sidetracking technology in China is envisioned in light of the status quo of workover sidetracking technology.

Abstract:The principle of reaching balance drilling and under balanced drilling using foam mud in water well drilling in Karst formation was presented. The causes of inefficient pressure drop in foam drilling water well also mentioned. The pressure and flow rate of fluid in well head were calculated using iteration.

Abstract:The natural drift law on the formation in Anpeng Alkaline Mine is analyzed by statistics based on the actual well logging information. The natural drift law is used to design the borehole profile. The planning of the well coordinate is present using regressive theory and correlation equation between horizontal displacement and true depth. The practice showed the using the method can shorten total drilling time and increase ROP.

Abstract:介绍了乌兹别克斯坦南布基纳依铀矿区地浸采矿工艺中工艺钻孔施工及成井技术,重点介绍了成井工艺.

Abstract:钻井参数监测仪的使用使我们由经验打钻向科学打钻迈出了一大步.钻参仪监测钻进技术发展的最终目标是实现监控钻进,即实现钻探过程的自动化.但目前钻井参数监测只能实时监测井上参数,不能实时监测钻头工作参数(井下参数);不具有实时判层和优化钻进参数等智能.讨论了实现这些功能的可行性.

Abstract:结合工程实例,介绍了大口径深水井施工中,用爆破法处理卡埋钻事故爆破方案的设计及实施.

Abstract:The average normal force per diamond grain is analyzed by measuring the horizontal and vertical force components and the power in circular sawing of granite with segmented diamond blade. The influences of diamond protrusion beyond bond matrix and the presence of coolant slots on the actual normal force per grain are discussed. The results presented in this paper can serve as a useful guideline for the selection of optimal machining parameters and optimal design of diamond tools.

Abstract:"科钻一井”一开井段采用了钠膨润土-高粘CMC泥浆体系,视漏失情况添加GD-Ⅲ随钻堵漏剂,满足了施工携带岩屑和堵漏防漏要求.介绍了该井一开井段的泥浆技术,并对泥浆成本进行了分析.