Abstract:Currently in the whole world, Beypazari trona solution project is the largest mining engineering with the methods of solution mining and intersected well drilling. Due to the geological condition changes and abnormal earth magnetism behavior, some abnormal deviations happened with the MWD device. An in-situ probe calibration work is designed and preformed so as to find what influences the probe measurement precision. The calibration results show the assembly condition of MWD probes greatly contributes the deviation of measurement, thus some measures are necessarily taken to prevent from such errors in the well drilling construction.

Abstract:Hydro-hammer drilling is an advanced technology, which can challenge hard and complex rock stratum and can improve drilling efficiency and extend bit service life; furthermore, it has better anti-inclining effect. In the exploration drilling of Tieshan mining area of Wuyang city Henan Province, percussion rotation drilling technology resolves the technical problem of drilling in the banded compound granite formation with big inclination, uneven hardness and frequent interbed.

Abstract:在强自然造斜地层的深孔勘察施工中，孔斜问题一直是影响钻孔质量和勘察成果质量的重要因素。以穿越恒山山脉铁路隧道深孔勘察为例，介绍了在自然造斜严重的片麻岩地层中采用有效钻孔防斜措施和螺杆钻具纠斜方法，保证了勘察钻孔的质量。

Abstract:综述了以往和近期在鄂西复杂难钻地层钻探施工中所采取的综合性技术措施。对钻孔孔身结构设计、设备安装、开孔、换径到正常钻进所遇及的不同技术难题以及采取的特殊技术措施作了分析、评介。

Abstract:详细介绍了PVA的基本性能，及其护壁机理，并和PHP-KHm冲洗液比较，对钻进技术效果和经济效益进行了分析评价，结果表明，PVA无固相冲洗液对于复杂地层钻进中的护壁、堵漏是一种既经济又有效的处理方法。

Abstract:兖州市颜店铁矿上部地层松散，下部岩层溶洞多、裂隙大，漏水严重，而设计的普查钻孔深度大，给施工带来很大困难，通过采取多级钻孔结构，并在钻进参数、冲洗液、钻头、扩孔器上的合理应用，解决了施工难题，顺利完成了1804．95m深的ZK8号普查孔。介绍了该孔的钻探施工技术。

Abstract:The results of inclining-prevention are not so ideal while drilling in easily declined formations by pendulum assembly with stabilizers. It was found in continuous practices and calculation, the flexible bottom hole assembly has the advantages of strong pendulum force, good incllning-prevention results, and which ensure the well bore quality and improve ROP. A new type bottom hole assembly is provided for drilling in high angle deviated and hard formation.

Abstract:The paper detailed the technical specification, equipment, construction technology and technical measures of enlarging borehole in shaft for coalbed methane with field cases.

Abstract:介绍了井深1650m的TD-1号地热井的施工工艺和施工中遇到的问题，以及采取的对策。

Abstract:地源热泵（Ground Source Heat Pump，GSHP）作为最有发展潜力的热泵技术在各级政府的积极推窑下发壁迅速，但由于地源换热器施工安装成本高，技术的发展遇到了很大的阻力。探讨了土壤源换热器施工技术和土壤源换热器的热平衡问题，力图提高土源换热器施工技术，降低地源热泵成本，促进该技术的推广应用。

Abstract:The paper analyzes the application mechanism of reinforcement for composite foundation based on engineering example. The combination of root piles with static pressure grouting can be adapted to this reinforcement engineering. The practice has certificated that the appropriate technique can get the good result in foundation reinforcement.

Abstract:通过对在相同的工程地质条件、相同的成孔方式下，采用不同的成桩工艺所施工的螺旋钻孔灌注桩的质量及承载力情况的分析，阐明成桩工艺对桩的质量有很大影响。

Abstract:在杭州天工艺苑增层改造基础加固中，采用锚杆静压桩，由于浅部有厚达8～12m的砂质粉土层，无法直接压入钢筋混凝土管桩，通过试桩，比选出可行的技术方案。介绍了各种技术方案的试桩情况，分析了成败原因。

Abstract:阐述了酸溶液对水泥的影响机理，科学地选择了对地基土酸污染的处理方法，地基处理效果较好。对施工过程及效果进行了介绍。

Abstract:新疆石门子水库利用河床砂砾石作为水库围堰，必须对其进行防渗处理，经过方案对比，采用灌浆法进行处理，介绍了防渗处理中的灌浆设计、施工及处理效果。

Abstract:The paper outlined the topography, geomorphology and stratigraphic lithology of landslide in Hongtu Mountain Section in reconstruction of S101 in Qinghai Province, characteristics of sliding mass deformation and analysis of deformation causes; landslide thrust was calculated and the treatment scheme was selected according to the calculation. Some technical parameters and problems in treatment scheme were described.

Abstract:Introduction is made on sonic resonance drilling about the principle, and advantages. Comparing with traditional drill, it presents high efficiency, safety and credibility. Operational principle of the hydraulic pressure system and each oil line system are also detailed.

Abstract:以某工程需要为契机，通过改装DZ40型桩机机架以适应DZ60锤头施工，获得成功。对DZ40型桩机机架的改装过程进行了阐述。

Abstract:The paper mainly introduces the features, technical process and the application of coring with formation kept technique in the south coring borehole of SLCORE - I, and raises some problems that should be paid attention in applying this technique in Daqing Oilfield in future.

Abstract:Construction technique was described about shallow tunneling through pedestrian overhead bridge foundation with the constructing project of section between Shuangjing and Jinsong of Beijing metro line 10, and the technology was tested through monitoring measurment.

Abstract:The cause of collapse was analyzed by tunnel collapse in Beihai Road in Yichang City, the treatment by steel arch frame and composite support with bolt shotcreting mesh was introduced. Better result of backfill was achieved by argil concrete that is light to reduce the loading supporting structure.

Abstract:结合金龙隧道施工通风方案的确定，阐述根据隧道的长度、掘进坑道的断面大小、施工方法和设备条件等诸多因素来确定隧道施工通风的方式、方法。