2005, 32(10):1-1.
Abstract:2005年是我国取得抗日战争暨世界反法西斯战争胜利60周年,也是中华人民共和国建国56周年的大好日子.
2005, 32(10):2-5.
Abstract:With 3-dimensional FEM method, seepage field of pit excavation case of local breakage in seepage proof wall were put to study. In this paper, method of embedding piping tunnel in 3-dimensional block is put forward to simulate piping erosion process. The effect of piping conductivity in the piping development process was taken into discussion.
2005, 32(10):6-9.
Abstract:In order to attain the expression of the lateral resistance of rock inserted piles, the breakage is produced by the slippage between the pile and rock assumed by this paper. The pressure between the pile and rock is composed of the pressure generated by deadweight and the one generated by expansion. Then the total normal pressure between the pile and rock is attained by the elastic method. At the basis of Hoek-Brown criteria, the final expression of the lateral resistance of the rock inserted pile is formed. Finally the comparison between this method and data from the fact of the practical project shows good agreement in some degree.
GUO Hong-zhi , LU De-fu , ZHAO Qian-xi
2005, 32(10):10-13.
Abstract:The case in which the post casting techniques were used to increase the load capacity of single bored pile drilled for Henan Yanshi Xinhua Book Store was introduced. The determination method of post casting technical parameters was expounded and proved, taking the project practice as examples. The general performance techniques of post casting were disccused.
2005, 32(10):14-16.
Abstract:Base on two concrete engineering examples, the author came to the conclusion that a large number of piles broken in driven cast-in-place pile are due to the incorrect digging of foundation pit late. Besides, some methods to prevent the piles broken and to deal with them are discussed.
PENG Zhen-bin , WU Qi-hong , PENG Wen-xiang , LI Yun , TANG Jia
2005, 32(10):17-19.
Abstract:以长沙市某商业广场深基坑西侧支护为例,根据基坑周边环境,综合考虑多方因素后,提出一种新型的桩锚支护结构。着重介绍了该桩锚支护结构的设计和施工工艺。
WANG Xiao-gang , DENG Ding-hai
2005, 32(10):20-22.
Abstract:通过对同一场地2根不同桩长的大直径钻孔灌注桩竖向承载力静载荷试验及内力实时监测数据的对比分析,确定了试验桩的单桩容许承载力值。提出了本工程试验桩设计参数安全储备系数过大的问题,建议工程技术人员合理选用桩基设计参数,尽量做到安全性与经济性的统一。
2005, 32(10):23-25.
Abstract:结合工程实例,介绍了旋挖钻进中钻杆折断、埋钻、卡钻、掉钻头等事故的处理方法及预防措施。
2005, 32(10):26-27.
Abstract:介绍了在静态泥浆护壁的湿式旋挖工法中出现的埋钻事故的处理工艺以及在使用湿式旋挖工法中出现的一些实际问题的处理办法。
2005, 32(10):28-29.
Abstract:简述了井间电磁波层析技术的工作原理,阐述了建立速度层析成像后的异常特征。用2个实例进一步说明了井间电磁波层析技术在实际岩溶勘察中的应用效果。
LI Hai-bo , LIU Guo-hua , ZHANG Xiao-jing
2005, 32(10):30-31.
Abstract:采用导向钻进技术斜穿武汉市武昌鲁磨路,铺设口径110 mm的3根网线护管,穿越总长度约为120 m。详细介绍了本次施工导向钻进、扩孔、铺管等工艺,最后对工程中的一些问题进行了分析。
2005, 32(10):32-37.
Abstract:锚索抗滑桩、锚索地梁因其既能主动提供较大的抗滑力,又可有效改善桩体的受力状态而较适用于治理特大型复杂滑坡。总结了三峡库区巴东县滩坪特大型滑坡治理工程中具有代表性的锚索抗滑桩加锚索地梁的设计方法及成功经验。
WONG Wei , HUANG Yu-wen , HU Ji-liang , SHI Xin-hui
2005, 32(10):38-39,49.
Abstract:The rotary drill rod failure is analyzed. The alternative design and manufacture techniques of friction drilling pipes of rotary drills was introduced. The attentions should be paid during manufacture were mentioned.
2005, 32(10):40-41.
Abstract:简单介绍了φ60 mm一体式非开挖钻杆的工艺设计、工步设计、模具设计、试验过程以及试验结果及分析,得出了试验成功、工艺合理的结论,并指出了今后生产中应注意的问题。
Lü Jian-guo , CHEN Min , LIU Bao-lin , XIAO Tian-peng
2005, 32(10):42-44.
Abstract:This paper presents an analytical model at the cylindrical coordinate system for the power consuming of the viscous force caused by centripetal force of the drill string while rotating without weight on bit (WOB). The drilling mud in this model is assumed to be Newton fluid. Therefore, this model has a good accordance with the reality by synthetically considering the rotate angular velocity, the structure parameters of the drill string and the well, the viscous coefficient of drilling mud and etc. That is, the centripetal forces of the drill string and the shearing strength caused by the fluid are considered in the model, which makes it have a better utility than those existing.
2005, 32(10):45-46.
Abstract:通过该项施工,得出空气潜孔锤钻进工艺可在贵州岩溶地区供水成井施工中使用,及具有在无水和严禁用水条件下的施工优势和优质、高效、低成本的显著特点。但也存在空气潜孔锤和原有设备不配套,且压力不够,达不到所需孔深的缺憾。为使该工艺施工满足对井深的要求,建议添置增压机或使用高压风机。
2005, 32(10):47-47.
Abstract:在金刚石绳索取心钻探中,采用钻杆润滑脂替代乳化油等润滑剂,可以大幅度提高钻探效率,降低钻探成本,减少环境污染。介绍了这种钻杆润滑脂的配制方法,以及其润滑、减阻、护壁堵漏的作用机理和效果。
2005, 32(10):48-49.
Abstract:分析了目前我国岩心钻探施工队伍的现状,从用工制度、市场准入、技工培养、设备及工艺标准规范以及学术交流活动等方面探讨了改进方向。
2005, 32(10):50-52.
Abstract:According to characteristic of the city underground engineering, Combining the instance of underground pass in the rich water sands in the one city, the way of ground dewatering has analyzed and dewatering result of deep well has qualitatively analyzed to subside to the earth's surface, around building correctly subside at the same time. Observe results indicate that the way can be full of project needs. The paper has offered the construction example for the underground engineering in the rich water sand layer.
2005, 32(10):53-56.
Abstract:在石门皂市水库左岸料场公路易家坡隧道采用一种净空相对位移变形观测法,它由壁面测点、测尺、测试仪器联结部分组成,介绍了观测及数据处理的方法。
2005, 32(10):57-59.
Abstract:结合宝泉抽水蓄能电站龟山石料场开挖施工,介绍了料场开挖施工方案和道路选择,以及相应的施工安全防护体系。
WANG Hong-ying , YE Dong-qing , YANG Hai-bo
2005, 32(10):60-63.
Abstract:顶部驱动系统是当前钻井设备自动化发展更新的突出阶段成果之一。实践表明,该系统可节省钻井时间20%~25%,并可预防卡钻事故的发生,用于钻斜井、高难度定向井时经济效果尤为显著。对国外顶部驱动钻井系统的最新进展进行了介绍。