Abstract:During drilling of Well CCSD-1 of China Continental Scientific Drilling Project, a new type of drilling technology system with Chinese Characteristics was developed. The main contents of the system and its results gained in Well CCSD-1 were introduced. The scientific drilling projects which are implementing or will be put in practice were introduced in short. The good prospects of exploration engineering were forecasted, based on ‘the State Council’s Decision on Strengthening Geological Work’ which will be announced and ‘Crisis Mine Replacement Resources Exploration Plan’ which already started up in 2005.

Abstract:The important signification of mineral resources to economical and social development of our country, the serious situation confronted by mineral resources in our country, and the necessary of actualizing ‘Crisis Mine Replacement Resources Exploration Plan’ were discussed. It is emphasized that the role of high efficiency geology core drilling technology in the plan is not replaceable. The low cost and high efficiency drilling technology was put out to speed the plan implement.

Abstract:Based on analyses and summarization on the predecessors’ research achievement, taking the actual situation of mined-out area underlying JinZhu speedway into account, the author built 2D analysis model of mined-out area underlying speedway adopting relative modeling methods of finite element and gained some useful research results in order to serve for practical engineering and offer some available guidance.

Abstract:The decentralized pre-stressed anchor cables were tested at lower drainage outlet in Yixing Energy Storage Power Station. The test procedures were introduced and analyzed. The loss of anchor cable stress during tensing and locking was analyzed and verified by test. And the project techniques were improved though test.

Abstract:The concrete of steel fiber is a direction of developing concrete science as a kind of new composite material. By its good crack resistance, the curving toughness, anti-pull with performance and anti-curved intensity, it widely applies in each kind of engineering construction domain. This article elaborated the application of steel fiber pumping concrete in underground constuction by the full and accurate data under the specific system condition.

Abstract:通过对宁波市镇海金丰阳光住宅小区桩型的合理选择，阐述了在民房密集区域内采取合理的施工工艺和信息化的监测手段，将沉管灌注桩施工时挤土带来的不利影响控制在合理的范围内。

Abstract:The blemish is a familiar and important reinforced concrete to drill a hole to infuse to note a quantity problem. This text passes the analysis to an example, introduce the method of replacement for head of stake that is “eliminate the concrete up down to arrive the position when its strength attains the standard, and then expand the path and connect the stake arrives to design the elevation use the concrete that its strength higher one grade than body.” That method can handle the problem of a blemish quickly and availably.

Abstract:Based on the actual construction project of dealing with soft base by using lime column, the thesis explores the construction scheme and consolidation effect of lime column. Therefore, the thesis testifies that it’s applicable to deal with soft base by lime column and to improve the bearing force of soft base.

Abstract:248 steel stud piles made reversely were designed to be used in Caoan Trade Buildings. Measures on making and installation of steel stud, selection of pile rigs, design and installation as well as making of fixation frames were taken to meet the pile elevation and verticality requirement. The elevation and verticality of finished piles were well agree with the design and standard.

Abstract:Guangdong Foundation Engineering Company

Abstract:介绍了高压旋喷桩在第29届奥运会青岛帆船中心陆域工程Ⅱ标段止水帷幕和基坑支护设计及施工中的应用，对止水帷幕的设计及双重管高压旋喷桩的施工工艺进行了论述。

Abstract:结合兰海高速公路HL15标段的施工中用水泥粉喷桩复合地基加固软土地基经验，阐述用水泥粉喷桩加固软土地基设计计算中技术指标的选用，结合公路工程实例介绍并探讨该技术在黄土地区的应用。

Abstract:通过对几种注浆工艺的科学设计和综合运用，在浅埋暗挖工程中取得良好的应用效果。

Abstract:短螺旋钻头主要适用于硬岩地层的钻进。详细介绍了短螺旋钻头的结构、分类和工作原理，介绍了适用地层、应用条件及注意事项,结合桩基旋挖施工实际,分别简要介绍了应用情况及效果。

Abstract:为了快速完成乐山市沙湾水电站泄压孔的造孔任务，根据工程技术要求和地层特点，使用空气潜孔锤钻进工艺，结合传统的钻探方法，加快了深厚砂卵石层的钻进速度，积累了经验，为今后在含水丰富的深厚砂卵石层中应用潜孔锤钻进打下了基础。

Abstract:Rheology of clay-free vegetable gum drilling fluid which is used in coring loose and broken formation, deep pebble formation and the Quaternary Period overburden was studied. The rheological model for describing rheological properties of the drilling fluid and the rheology parameters were put forward.

Abstract:充气泡沫钻井液是气体均匀地分散在钻井液中形成的稳定分散体系。现场试验表明，其可节约钻探用水，携带岩屑能力强，护壁效果好，漏失少，润滑效果好，钻进效率高，操作简单。在干旱缺水或漏失严重地区值得推广。

Abstract:介绍了HJX钻井液在狮子庙矿区复杂地层钻探中的应用，分析和探讨了HJX复合型钻井液对复杂地层护壁的作用机理。

Abstract:详细分析了陕西彬长矿区洛河组地层煤田钻探施工中存在的问题，提出了解决洛河组地层钻进的技术措施和对策，实践证明这些方法措施是有效的。

Abstract:The shoring results for coal mine under the soft rock conditions were not perfect. The author thought that adjustment of pre-stress in a efficient method to improve shoring results. Test was made on worm steel anchor, Huaibei pre-stressed anchor and high pre-stress anchor, to compare the shoring results. The high pre-stress anchor shown that it can efficiently control the surrounding rock deformation in tunnel under deep earth. Meanwhile it has good economic benefits.

Abstract:通过对隧道超欠挖数据进行统计分析，归纳出影响隧道超欠挖的5个主要因素，并论述了减小隧道超欠挖的方法。