Abstract:The causes of engineering defections were analyzed, taking the non-uniform floating in box-foundation. The ways, which are high pressure grouting and anti-lifting anchor piles, to treat the defections were given.

Abstract:The design methods, engineering techniques and good leakage prevention results of high pressure grouting leakage prevention wall were introduced, taking the engineering case of patching geo-membrane’s flaw by high pressure grouting as an example.

Abstract:Some sections on Luozhan Railroad are loose soil in up part and karst caves in down part of the foundation. The cement injection way and parameters were determined according to the hydrogeological and engineering geological conditions. The different injection methods were used in soil and rock body to consolidate and to fill the loose soil and the corrosion pockets, karst caves and corrosion grooves in the rock body, so that they can form one integrated consolidation body. The bearing capacity of rock dissolution foundation was strengthened. Therefore the normal run of railway is ensured. The cement injection techniques and its results were introduced.

Abstract:着重论述了一起特殊且复杂的钻孔灌注桩孔内事故的处理，对事故处理的过程、方法、步骤作了详尽的阐述，同时谈了几点体会。

Abstract:介绍了管桩断桩注浆加固补强的施工设计、施工工艺和方法，并用典型的工程实例所取得的效果说明用这种方法来处理管桩断桩是可行的。

Abstract:介绍了地下室基坑支护的一些要点及如何有效保护邻近建筑的措施。阐述了三重管高压旋喷桩的施工工艺特点以及相应的施工技术要求，且针对浙医二院门诊科教综合楼基坑工程的实际状况，提出了采用注浆补强加固邻近建筑物地基基础，根据施工监测等可靠安全的技术措施。

Abstract:结合工程实例介绍了深层搅拌法在广西软土地基处理中的应用情况，并对工程实践中的若干技术问题进行了分析和探讨。

Abstract:结合广州某垃圾处理场详细勘察阶段的岩土工程勘察，探讨波速测试在花岗岩残积土中的应用问题。

Abstract:Selection of plan for prop pipelining with densely arranged large diameter pipes, working pit support, some problems and technical difficulties during prop pipelining were introduced, taking Laoshan water discharge project (Second modification for Chenglinzhuang Road) as an example. The relevant handling measures were given.

Abstract:采用非开挖定向钻进的方法穿越深圳麒麟立交桥铺设石油管道，管道为φ3239 mm无缝钢管，长度512 m。该穿越地段为全风化花岗岩地层，在这种地层中进行非开挖定向穿越施工难度比较大。介绍了施工中出现的问题及解决办法，并详细介绍了钻进、扩孔、泥浆、布管、拉管等施工方法。

Abstract:The environmental problems related to highway tunnel construction include ecological environment, air environment, and sound environment and so on. The effects of highway tunnel construction to various environments were analyzed. The relative environment protection measures were put out.

Abstract:结合工程施工实例介绍了预应力锚索加砼格栅梁和锚杆挂网喷射砼在高速公路边坡加固支护中的施工过程及其相关技术措施。

Abstract:The Trailer Mounted Rig HXY-800QT was developed to meet the requirement of exploitation of Sandstone Uranium Mine. The design concept, performance features, main parts’ structure pattern and application results of the rig were introduced.

Abstract:Large Diameter Fully Casing Impact Bucket Grab CGD-1 was designed and development mainly for mating the fully casing drill rig. The Grab is mainly suitable to be used in complex formations. The technical parameters, performance features, main structure and test results were introduced.

Abstract:Because the hydraulic moving mechanism can move conveniently, change direction quickly, locate the borehole position accurately, and need short auxiliary time, most of the big drilling and tunneling machines adopted it for moving between boreholes in site. The structure and traits of two direction moving mechanism and one direction moving mechanism with rotation were introduced.

Abstract:对可变径滚轮钻头的结构特点及工作原理进行了论述,与双腰带刮刀钻头进行了对比分析，并对其在桩基工程中的应用进行了介绍。

Abstract:The frame grains and filling grains were designed by using temporary shield blocking techniques, taking account of heterogeneous apertures and following the reservoir features of Sangong Structure in 1st district of Sungar. The drilling fluid formula was optimized after indoor test. The techniques gained very good application results in 1st district of center Sungar. The permeation recovery rate reached over 95%. The surface ratio of test well all were negative.

Abstract:The paper analyses the general situation of physical exploration blasting hole construction in China, introduces the technology and characteristic of air reverse circulation drilling and explosive-putting in drilling rod, and conditions for equipments of the technology are stated.

Abstract:Ground subsidence prevention of dissolution mining by drilling was analyzed, taking some mine as an example. The reasonable drilling position and spacing were determined. That is beneficial to work out the mine exploitation plan and mineral resources protection. Therefore environment can be protected during mining.

Abstract:The drilling methods and well completion techniques halite exploration were summarized. The borehole wall protection results of salt saturation mud and its advantages in drilling were introduced. The use of salt saturation mud and hydraulic mixer has actual direction meanings to Zhangxian County Salt Mine in the future.

Abstract:郑州市某千米地热井水温、水量及水质发生变化，，采用修补及酸化处理的工艺，处理后水温、水量及水质均达到了要求。介绍了处理技术及处理效果。

Abstract:根据几个水井深井潜水泵(电机)脱落实例,经过分析,认为螺栓电化学腐蚀是造成深井潜水泵(电机)脱落的主要原因。采用耐酸不锈钢螺栓连接可有效防止潜水泵(电机)脱落事故的发生。

Abstract:介绍了翠宏山铁矿主矿井勘察孔采用金刚石绳索取心钻探技术在大孔段严重坍塌地层中钻进、坍塌事故处理及大孔段扩孔的技术方法。

Abstract:通过位于高寒地区的新疆萨日达拉金矿的钻孔施工实践，摸索出使用防冻泥浆克服冰冻钻具的施工技术。

Abstract:结合工程实际，阐述了粉土、粉质粘土交互地层中，有机质含量较高、地下水位较浅时，采用轻型井点降水辅助深井真空井降水的方法，有效地疏干了赋存于夹层中的自由水，成功地解决了浅埋隧道施工时，拱部夹层问题，达到了无水施工的要求。