Abstract:Through inversion analysis of pile testing data at three sites, the author has concluded as follows. The lateral and tip resistance of sandy soil can be determined according to the code by the density, after adding 5 strikes to the standard penetration test, and the tip resistance becomes higher as the pile gets deeper into the supporting course. As for the upper Pleistocene cohesive soil, the lateral and tip resistance can be determined according to the code after raising the liquidity index by one or half a level. In addition, the lateral resistance of the Holocene cohesive soil and the upper Pleistocene silt can be determined according to the code directly based on the origin liquidity index of density.

Abstract:广西柳州地质探矿机械厂拟建的南天大厦综合楼扩建工程桩底持力层承载力不足，采用对桩底地层进行化学灌浆加固处理,以提高桩端持力层承载力,结合工程实例，介绍了桩底地基灌浆加固施工技术及施工体会。

Abstract:永嘉下浦大桥所处地理条件复杂，桩位受潮水影响严重并处在陡坡的基岩上,且嵌岩比较深，提出了如何选择施工方案、施工工艺及钻孔机具等，特别介绍了在陡坡处嵌岩深桩的具体施工方法及注意事项。

Abstract:针对宿迁职业技术学院二期工程的具体的岩土工程条件，设计选用干振碎石挤密桩处理建筑场地内液化土层并提高了场地内土的地基承载力。通过对检测结果分析表明，干振碎石挤密桩对降低宿迁市黄泛区易液化土层的液化指数并提高其承载力有明显效果。

Abstract:结合实践经验，总结了预应力锚索施工中钻孔、编索、浇筑砼框架、注浆、张拉等各个工序对锚索质量的影响及施工注意事项。

Abstract:国华浙能宁海电厂围堤爆破挤淤影响区采用塑料排水板进行处理，按常规设计施工方法达不到处理效果，对处理方案进行了改进，加铺一层竹席，并加厚碎石层，取得了较好效果。

Abstract:结合广东省某水厂沉井工程，介绍在软土地基中施工沉井时为防止突沉和超沉而采取的措施，并对沉井制作、下沉及封底有关问题进行了分析探讨。

Abstract:在对长江三峡巴东五里堆滑坡进行稳定性分析与评价的基础上，采取了抗滑支挡、地表排水、监测居住、适时搬迁的综合防治方案。介绍了抗滑桩的设计与施工。

Abstract:上海黄浦江的定向穿越一直是国产设备、仪器的禁区，笔者凭借多年定向施工的经验和对设备的了解攻克了这一风险极大的难题。详细介绍了采用国产钻机和有线导向仪穿越黄浦江铺设6根φ110 mm、长500 m PE管的施工技术。

Abstract:The structure features, technical specification, productive trial and construction cases were introduced.

Abstract:The connotation and formation of flexible manufacturing system (FMS) were introduced on the current technology situation of drilling machine manufacturing in my country. The necessary and development prospect of using FMS in Chinese drilling equipment manufacturing industry were also analyzed.

Abstract:The current situation of water well and engineering rigs in China was briefly introduced. After the introduction of foreign hydraulic top driver and rotary rigs, the suggestion deal with the development of water well and engineering rigs was put forward.

Abstract:The main technical specifications of Water Well Rig SPS-600 were introduced. Some of the technical data were explain in detail. Meanwhile the main points at auxiliary equipment during development processes were introduced. The rig has got quite good result while used.

Abstract:In this paper the concept about drilling fluid cavitation is proposed according to the principles of hydraulics, experimental stand for cavitation research is set up, research results are given, and measure against fluid cavitation is suggested and corresponding suggestions proposed.

Abstract:The reasonable selection for drilling fluid rheological model and the precise calculation for rheological parameters is the preconditions for optimizing drilling fluid design. After comparison between five drilling fluid rheological models which are currently normally used, the regular calculation methods for rheological parameters were analyzed and their insufficiencies were point out. The rheological parameters under five models were data processed with regression analyses. Some calculation software was developed out. Comparison between and analyses of two calculation methods for rheological parameters were made. The advancement and veracity of linear regression were shown out. Optimization of rheological models was realized through calculation of rheological parameters by computer software and output of rheological curves for respective models.

Abstract:反循环钻进对地下水和松散地层有较大的抽吸力，易诱发孔壁坍塌，在松散地层中钻进极少采用。在ZK403孔的松散层中，采用了反循环钻进与多级套管跟管相结合的施工技术，钻孔顺利地穿过了大量涌水、松散而不稳定的采空区堆积层，较好地解决了该孔在松散层中的钻进问题。

Abstract:在长江三角洲以及杭州湾地区第四系地层连续取心钻探工作中，通过选用大功率钻机以及活动头双套取土器，采用无泵干钻工艺，取心率达到90％以上，且岩心内部原生沉积层理清晰，扰动小。

Abstract:针对鄂北工区30521HB井队频发的G-105钻杆失效事故进行了分析和研究。钻具失效的主要原因是由于钻杆内壁未采用内涂层以及钻具的偏磨及氧腐蚀穿孔而造成。

Abstract:鄂尔多斯盆地北部大牛地气田是典型的低压低渗裂缝性砂岩气藏，储层以低孔、低渗、低压、高毛管压和有效应力为主要特征，裂缝和微裂缝发育，常规完井液对储层伤害严重，单井产量较低。在研究储层损害机理的基础上，对储层岩心进行了钻井液损害实验评价，并优化总结出一套适合大牛地气田的屏蔽暂堵钻井液完井液技术，实践证明对单井产量和井身质量的提高取得了显著效果。

Abstract:结合生产实践，介绍了稠油井井筒清理技术的高效套、磨铣技术，井下液压生力器解卡技术；井筒修复技术的套管整形技术，套管补贴技术，取换套工艺技术。

Abstract:以J2孔为例，论述了井下电视在钻探工程和修井工作中的应用效果。

Abstract:沙湾隧洞是东深供水改造工程中的一段，断面尺寸6.8 m×7.9 m。分析了影响该隧洞围岩稳定的一些因素，介绍了不同围岩类别的支护型式及特殊地段的处理措施，并对隧洞勘察提出了一些建议。