2001(2):1-2.
Abstract:A brief introduction on setting up the TBM industries in the underground construction in China is presented as follows: 1. The development and tendency in the field of underground construction international; 2. A brief review on the development of TBM in China; 3. Opportunities and challenges in developing TBM technology in China; 4. Comments and suggestions for the future development.
2001(2):3-6.
Abstract:The application of the GIN method, the grouting theory and its characteristics are briefly introduced. The method of determining the GIN grouting parameters is described. The advantage of the GIN method is evaluated by comparison of the experimental data. Some proposals to promote the GIN grouting techniques presented.
2001(2):7-9.
Abstract:With a view to the defects at the bottom section of the deep mixed pipes, the analysis is made of the adverse effect of the acidic soil ground rich in water on the curing strength of the cement soil through the stabilization mechanism of the cement deep mixing method, and the way to improve is proposed.
2001(2):10-11.
Abstract:冲击钻进工艺对地层有着广泛的适应性,对采用回转钻进或其它钻进方法难以钻进成孔的复杂地层更能显示它的优越性。就冲击钻进在复杂地层钻孔桩施工中的几个技术问题进行了探讨。主要内容包括冲击钻头的设计、孔口护筒埋设与开孔钻进以及确保该法取得优良效果的技术措施等。
2001(2):12-13.
Abstract:从设备安装、管路密封、泥浆性能、钻头结构、钻进参数、施工管理等方面,分析了用泵吸反循环钻进工艺施工钻孔灌注桩时循环液中断的原因,提出了预防措施。
2001(2):14-15.
Abstract:深层搅拌桩、碎石注浆桩、预应力锚杆、岩体喷锚和压力注浆5种施工工艺在-个深基坑支护工程中综合应用,降低了工程造价,保证了基坑支护系统的安全性、可靠性,并取得成功。概述以上几种施工方法的设计、施工概况及主要技术措施。
2001(2):16-17.
Abstract:在广州市珠江新城临江大道振挤碎石桩地基处理工程中,试用了4种常用的桩靴和自行设计的套管单片活瓣平底桩靴,实践证明,在厚软弱地层中,套管单片活瓣平底桩靴具有成桩速度快、质量好的优点。着重介绍了4种常用桩靴存在的问题,套管单片活瓣平底桩靴的结构原理以及它们使用效果的对比。
2001(2):18-18,20.
Abstract:介绍了某电站坝基需要灌浆处理和为此所做的灌浆试验工作,包括灌浆试验的目的、设计、工艺及存在问题处理等。指出通过前期的灌浆试验工作,可为后序的坝基处理提供技术和工艺依据,效果显著。
2001(2):19-20.
Abstract:论述了深层搅拌桩成桩、加固机理,着重分析了桩体强度的影响因素,指出由于在成桩过程中断喷或勘察不规范等因素导致局部地段承载力达不到要求,也提出了施工中应重视的几个问题。
2001(2):21-22.
Abstract:介绍了青岛李村河灰管桥桥墩钻孔灌注桩施工中采取的护壁技术措施针对滨海潮间带潮汐的影响,设置特别的泥浆循环系统,以保持钻孔的压力平衡;根据钻进泥砂、流砂层和砾石层的特点,配制优质海水泥浆;加强泥浆的净化与性能维护工作。
2001(2):23-24.
Abstract:讨论反射波法试桩中,冲击脉冲首波宽度与检测效果之间的关系,并举例说明,建议根据不同的检测用途选用不同的脉冲首波宽度。
2001(2):25-26.
Abstract:结合工程实例并通过理论计算,论证了桩体砼强度的变化(1~2个等级内)对单桩水平承载力并无明显的影响的论点。
2001(2):27-28.
Abstract:天荒坪抽水蓄能电站为高水头电站,其地下引水系统的岔管承受的最大动水头达887m,采用固结灌浆的压力为9.0MPa,由于岔管的结构特殊,受力条件复杂,在该部位进行高压灌浆施工稍有不慎就可能对隧洞产生不利影响。通过生产性高压灌浆试验,优选可靠的灌浆参数和施工工艺,使引水岔管的高压灌浆施工得以顺利进行。
2001(2):29-29.
Abstract:目前在钻孔桩施工中普遍采用吊斗法灌注砼 ,其突出的问题是漏斗容积小 ,吊斗受漏斗所限 ,一般做得也较小 ,其盛料量一般≯ 1 0m3。在灌注过程中 ,吊装一次砼 ,其灌注冲击力相应较小 ,每斗的灌注时间短 ,对孔内砼来说“静”的时间大于“动”的时间 ,将给连续灌注带来一定的困维 ,因此一般灌注总时间长 ,搅拌机效率也低。另外 ,搅拌机分槽搅拌不可避免地出现的砼质量差异也不能在盛料斗内“融合消化” ,使得砼质量稳定性不好 ,这些对水下砼灌注极为不利。解决上述问题 ,最经济并且简单易行的办法就是将吊斗容积加大
HU Shi you , WANG Quan cheng , JIANG Zhao qun
2001(2):30-33.
Abstract:The pre stress sensor is necessary for measurement in monitoring, research and test in the construction of anchors, pre stress concrete and pre stress bridges. Based on the present research on pre stress sensors, the operating principle, structural design, calibration results, main features and usage of the digital intelligent anchor cable pre stress sensor were described in details.
FENG Xiao dong , CHEN Qing shou
2001(2):34-36.
Abstract:The optimal method is one of the most important and active branchs in the domain of modern design and mechanic design. With applying to mechanic design domain, it promotes mechanic design more scientific, keeps the fine performance of the product and reduces the cost of projects. In this article, the authors present the research on the object functions, subject conditions and resolve methods in the optimal methods of borer design.
2001(2):37-38.
Abstract:The design criteria, overall structure and working principle of CFG 24 pile rig were presented with emphasis on the design features.
2001(2):39-40,43.
Abstract:Based on the rule of the insert arrangement in equal running condition, the effect of the button inserts in the vicinity on rock fragmentation is explored, and the optimum insert spacing, best insert position and proper insert numbers are determined.
2001(2):41-43.
Abstract:A light weight vacuum auger drill for gas sampling is developed for the research on the effect of the geological environment on the climate evolution. This paper describes its main parameters and the structural features of the matching drilling tools, as well as the gas sampling theory.
BU Jia wu , YAN Tai ning , CHANG Zhi jun
2001(2):44-48.
Abstract:Seabed sampling has important station in ocean exploration and exploitation, and it also is an important aspect of exploration engineering's application. As the first part of the subject on seabed sampling, the paper discusses foreign seabed sampler's developing state and operating mechanism, starting with describing the importance of seabed sampling and the classification of sampler.
2001(2):49-50.
Abstract:根据定向取心数据计算中所确定的在岩心正截面上水平截面中椭圆高点的投影沿反时针方向到结构面上椭圆高点的投影间的夹角φ的值及变化情况和结构面倾角、倾向的定义,通过球面三角简化计算过程来正确确定结构面的空间状态参数结构面的倾角、倾向和走向。
2001(2):51-51,53.
Abstract:在粉细砂~粉砂、粗~细砂、泥岩中成井的DR-Y1井,是宁夏地区的第一口地热勘探井。井深3100m,井身结构二开,开孔直径444.5mm,终孔直径244.5mm;选择土聚合物体系泥浆;选配216mm硬质合金取心钻头,川8-3型取心筒,φ158.7mm钻铤12根和φ127mm钻杆组成取心钻具;优选钻进参数;严格掌握钻进、割心及起下钻操作技术,确保取心成功率和岩心采取率均在90%以上,满足了水文地质的要求。
2001(2):52-53.
Abstract:陕西省委八号院地热井是目前陕西省成井最深、温度最高、压力最大、自流量可观的地热井,也是第一口以深部白鹿塬组为主要取水段的探采结合井,施工难度大。介绍了该井的施工技术措施、所遇困难及采取的办法等。
2001(2):54-55.
Abstract:分析了东梁地区孔斜的原因,依据实际,设计制造了茅杆式防斜钻具,在生产应用中取得了良好的效果。
2001(2):55-56.
Abstract:为防止钻孔灌注桩施工中钢筋笼上浮,制作了有主副插销组成的插销式送笼器,经使用证明,送笼器固定牢固、安放准确,并能重复使用。
2001(2):56-56.
Abstract:某千米地热井,用正循环施工至585m时,遇溶洞及强破碎带,井漏严重,施堵失败,至此到1300m终孔改用气举反循环钻进方法,顺利完成了任务。介绍了气举反循环钻进的应用情况和施工体会。
2001(2):57-57,61.
Abstract:针对工区地层特点和工程技术要求,以及现场发生井下复杂情况的原因分析,选择了泥浆体系,制定了相应的工艺技术对策,取得了良好的实效。对存在的缺陷提出了解决方案和设想。
2001(2):58-60.
Abstract:After the strength of the samples has been tested, the micro structure and the content of the metallic carbonides at the diamond interface are observed and analyzed under the high power electron microscope and spectrometer. The strength order of the metallic carbonides generated in diamonds of different concentrations and sizes with different additives are calculated; hence the difference of the physical and mechanical properties of different metallic carbonides are determined, which provides the theoretical basis for the production and development of diamond products.
2001(2):61-61.
Abstract:1996年 2月 ,我国和德国、美国一道成为ICDP(国际大陆科学钻探计划 )的第一批成员国 ,宣告了ICDP的正式启动。通过和ICDP的合作 ,大大促进了我国大陆科学钻探计划的实施。大别 -苏鲁科学钻探项目得到ICDP财政、技术、人才培养和科学管理上的重要支持 ,是这一项目得以作为国家重大科学项目和ICDP项目及早顺利实施的重要原因之一。这是我们及时参加ICDP成功之点。回忆我们参加ICDP的初衷 ,除了促进大别 -苏鲁科学钻探项目尽早上马之外 ,最根本的目的还在于 ,通过参加ICDP(包括实施大别-苏
2001(2):62-63.
Abstract:通过对索赔的环境,索赔同项目合同管理、工程质量管理、成本管理、文档管理及人员素质的关系等方面的分析,并通过工程实例来说明索赔是工程项目管理的新抓手,为进一步推动施工企业开展索赔推波助澜。
2001(2):64-66.
Abstract:岩溶对隧道工程的影响主要是洞害、水害、洞穴充填物及坍塌、洞顶地表塌陷4个方面。介绍了内昆铁路、南昆铁路部分典型隧道溶洞的处理方法和措施。
2001(2):67-68.
Abstract:隧道施工地质超前预报是了解掌子面前方施工地质条件的最好方法,施工地质超前预报的关键是资料收集和处理,探讨了资料收集方法。