2005, 32(12):1-2.
Abstract:最近中科院涂光炽、谢学锦,工程院赵文津、刘广志四位院士接受了《中国黄金报》记者的采访,他们分别对当前国家的矿产勘探政策及方向提出了宝贵的意见,对勘探工程和物化探以及向深部寻找矿源提出了中肯的建议,现摘编如下,供参考。
MA Bang-kai , MU Xing-hua , CAI Hai-yan
2005, 32(12):3-5.
Abstract:Slot completion with advanced support was creatively bought forward during concrete leakage prevention wall making in loose sand and pebble formation for hydropower, considering hydrogeological and geotechnical characteristics of Dam Foundation. The plan was improved after three dimension stress simulation and permeation test, and during actual construction trials. The application results were excellent.
WU Chun-yong , WANG Qing , Lü Hong-bin
2005, 32(12):6-9.
Abstract:With the development of vacuum preloading on disposing the special soft soil foundation, the mechanism of the soft soil consolidation has been a subject for researching. Formulation of the fractal theory can provide new ideal for the study of nonlinear system on soft soil. The prospect was studied by the fractal theory, which directed against the problem of the soft soil consolidation with vacuum preload and the fractal phenomenon of soil. The feasibility of fractal study on soft soil consolidation with vacuum reloading was proofed from the macroscopic and microscopic respect.
LI Ying-jie , KOU Cheng , YUAN Bao-wei
2005, 32(12):10-12.
Abstract:The design methods,engineering techniques and good leakage prevention results of high pressure grouting leakage prevention barricade wall were introduced. The paper took the engineering case of leakage prevention project in Jinshao Powerhouse temporary bulkhead by high pressure grouting project.
YUAN Jun-chao , LI Jian-zhong , ZHANG Ke-neng , LIU Zhi-ming
2005, 32(12):13-15,27.
Abstract:The treatment of karst foundation is one of the common problems in the highway construction. Combined with the grouting construction of kast subgrade for the highway of Changde-Zhangjiajie, this paper introduced the construction technique and interrelated construction parameter of the pressure grouting, and provided some corresponding treatment methods for special problems in construction. It provided the reference basis for the analogous engineering in the future.
2005, 32(12):16-18.
Abstract:通过对因地下工程施工引发地面沉降变形,造成房屋裂缝的加固与修复,提出了对房屋裂缝的加固修复处理方法。
2005, 32(12):19-21.
Abstract:阐述了旋挖工艺在几种特殊地层钻进中遇到的难题及解决方案,通过施工实例详细地说明解决难题的措施。
2005, 32(12):22-23.
Abstract:介绍了旋挖钻机采用静态泥浆护壁的湿式旋挖工法在阿尔及利亚桩基施工中的应用以及在施工过程中出现的一些实际问题的处理办法。
2005, 32(12):24-25,27.
Abstract:针对郑州郑东新区某高层建筑特点并结合场地地质条件,经综合分析采用静压预制砼小桩复合地基进行地基处理,取得了较好的经济和社会效益。这种地基处理方法对郑东新区类似高层建筑的基础处理有一定的借鉴和指导作用。
2005, 32(12):26-27.
Abstract:以东海大桥Pm336墩Z21号大口径钻孔灌注桩实例,介绍因孔内事故、桩长达不到设计桩长时,采用桩底旋喷续桩补强技术提高单桩承载力的方法。
2005, 32(12):28-29.
Abstract:分析了两种基坑支护逆作法钢立柱安装导向定位控制架的结构特点、操作方法、适应范围及使用效果,并进行对比,得出了优选结果。
2005, 32(12):30-32.
Abstract:No dig horizontal directional drilling technology is more and more used in communication engineering. The accident usually occurring in construction includes: pipe locked、the pipe can′t pulled easily and so on. The paper analysis the reasons and give some suggestion such as adding an iron cover between the extend hole and haul pipe, choose optimization slop pressure.
2005, 32(12):33-34.
Abstract:在北京市亦庄经济开发区非开挖定向钻进铺设529 mm燃气钢管,针对地下管线众多、地层松散易坍塌的情况,合理设计钻孔轨迹,并使用优质泥浆,使铺管施工顺利完成。
ZHANG Xi-kun , SONG Qiu-feng , YANG Jie , ZHANG Jun , LI Jian-min
2005, 32(12):35-37.
Abstract:Rig GFC-120 is a kind of self moving reverse circulation rotary rigs. It is mainly used to drill side foundation holes and small water wells. The characteristics, main technical data, structure and performance principles were introduced.
2005, 32(12):38-39.
Abstract:根据实践经验,分析了PZ系列组合牙轮钻头和CG系列滚刀钻头的结构特点,并就钻头使用中的钻头选型、钻进参数、泥浆循环以及注意事项等谈了一些认识和体会。
CHEN Min , Lü Jian-guo , LIU Bao-lin , XIAO Tian-peng
2005, 32(12):40-42.
Abstract:This paper investigates the relationship between the axis critical force under sinusoid bending and the maximum speed of drill string by considering the eccentric force effects of the drill string, and then obtains a mathematics model for the speed—axis critical force. Considering the inertial eccentric force and the weight of the drill string, we find that the axis critical force will be obviously less than that under the static state, which will be very important in drill engineering applications.
QIN Pei , QIN Jun-sheng , ZHENG Guo-hai
2005, 32(12):43-45.
Abstract:Wali conglomerate rocks are special formations distributed in Beijing Wali Area. The characteristics of Conglomerate, contributing factors and their effects to drilling were analyzed. The drilling equipment, drilling techniques, difficulties existing in drilling and countermeasures which were used in three geothermy well in Beijing were introduced.
2005, 32(12):46-48.
Abstract:Several hole making techniques with drilling, key technologies and effects were analyzed after comparison test research for two types of by-pass pressure devices used in geotechnical survey. The technical measurements suited to by-pass pressure test with drilling of shallow clayed soils and sand formations were put out.
2005, 32(12):49-51,58.
Abstract:介绍了郑州首眼深层地热勘探井的成井工艺。突破了常规成井技术环节,尤其对于深部弱渗透层成井更值得借鉴。
2005, 32(12):52-53.
Abstract:马钢(集团)总公司南山矿业公司凹山露天采场泄水钻孔为全基岩超深大口径钻孔,介绍了其钻头、泥浆、钻进参数的选用及采取的一些技术措施。
2005, 32(12):54-55,58.
Abstract:在论述了ERP(企业资源计划)的基本原理和核心管理思想的基础上,介绍了北京探矿工程研究所实施ERP系统的战略考虑和具体实施步骤。
2005, 32(12):56-58.
Abstract:The construction techniques of excavating tunnel under shallow cover which is Ⅱ、Ⅲtype surround rocks in city was introduced. “Short excavation, quickly closed, strongly support and frequently measuring” were taken as guidance during construction. The tunnel was excavated separating upper and down parts. The prompt initial support ensured the safe construction.