Abstract:Anti-lift static test was made on single pile with uniform cross section in foundation pits. Strain type steel device was installed on the pile and the strain data on different section in pile were measured successfully. Discussion on value of anti-lift coefficient of test piles, development of lateral friction drag and cracking of concrete pile body were made. The design suggestions about anti-lift piles were given out.

Abstract:CFG pile composite foundation is used to deal with weak foundation，it can increase the bearing capacity, and reduce the foundation settlement. In the process of designing CFG pile composite foundation，thickness of cushion is very important. It is one of most important factors in the bearing capacity of CFG pile composite foundation.But there is no theory method in designing the thickness of cushion. This article, based on the theory research, elicits the theory method of rational thickness of cushion. It offers expressions about the rational thickness of cushion and pile-soil stress ratio.

Abstract:The method of combination of vacuum preloading and surcharge preloading is an effective technique to treat the soft soil foundation. The basic principles, the basic mechanism and construction technology of the method to strength the freeway’s weak soil are introduced. The outcomes are indicated in pictures, it is shown that the vacuum preloading in combination with surcharge preloading treatment method is successful; and it can be adopted in the similar engineering cases.

Abstract:通过CFG桩在达旗新奥能源化工项目钢筋混凝土筒仓中的应用，介绍了CFG桩在设计、施工中应注意的问题。

Abstract:介绍了湖南省郴州市某岩溶场地住宅楼桩基础不均匀沉降、基础加固的设计与施工情况，结合工程的特殊地质条件，采用注浆和筏板加固地基和基础，最终控制了住宅楼的地基沉降。

Abstract:北京某复合土钉墙支护由于设计不周和施工不当，导致基坑支护事故，引起邻近建筑物倾斜成为危房，造成较大的经济损失与社会影响。通过分析事故产生的原因，总结经验教训，为后续工程的安全提供警示。

Abstract:东南沿海地区地质条件复杂，高层、超高层建(构)筑常用钻(冲)孔灌注桩来满足单桩高承载力的要求。以某工程实例，介绍桩底注浆的工作机理、施工工艺及静载试验成果，表明高压注浆可较大地提高单桩承载力，缩短钻(冲)孔灌注桩施工工期，降低工程造价，完善超高层建(构)筑物基础选择形式。

Abstract:后压浆工艺是近年来在钻孔灌注桩工程施工中采用的一种新工艺，结合工程实践介绍了钻孔灌注桩后压浆工艺在施工应用过程中参数的控制方法，对部分施工技术参数作了进一步探讨。

Abstract:由于桩基工程的复杂性、桩基施工的隐蔽性，使之容易存在质量隐患，因而做好基桩质量的检测工作是至关重要的，利用反射波法检测基桩桩身质量，除了对反射波波形本身进行分析外，还要结合施工工艺及地质条件对基桩桩身质量做综合分析评价。通过检测实例论述了对低应变反射波波形进行综合分析判断的方法。

Abstract:广州某6层建筑场地下有较厚软弱淤泥质土，难以满足天然地基要求，如采用桩基础因桩长悬殊太大、成本很高，因此采用了深层搅拌桩对场区软弱地基进行加固处理，效果良好。介绍了本工程深层搅拌桩的设计方法及施工工艺。

Abstract:阐述在郑东新区顶管施工中影响顶进阻力大小的诸多因素，进行理论分析并列举出计算顶进阻力的方法，提出了减小顶进阻力的思路。

Abstract:The general conditions of engineering and geology of Chang-Hun Highway were introduced. The application of compression decentralized pre-stressed cables, their functions, the reaction mechanism, operation techniques and tension test were also introduced.

Abstract:以上三高速公路天台K130+600滑坡体治理工程为实例，介绍滑坡治理中各种水平降排水技术的应用。

Abstract:The automobile chassis technique was adopted in the design of Rig HGY-1500. The automobile gearbox and clutch were selected. The helical gear transmission system was used in power distribution box of the rig. And the collar shifter on transmission and shift gear were used. The reliability of the rig was enhanced. The manufacture cost was reduced. The mass of the rig was decreased. It is convenient and easy to operate.

Abstract:The specialty and significant of high precision cold drawing techniques were introduced. The application prospect of high accuracy drawing techniques in geological pipe process was expounded, based on the inner barrel process techniques of large diameter and thin wall double tube core barrel used in Well CCSD-1.

Abstract:介绍了旋挖钻机用双层套管的加工选材、卷管、焊接和加工工艺以及在加工过程中的质量控制。

Abstract:The dosage of lubricate in geology survey core drilling and petroleum drilling is increasing day by day. The current lubricates are still using toxic mineral oil, such as diesel oil, as their row materials. So the application of current lubrication certainly will be limited by the strict environment requirements. A new type of high efficient lubricant (Glub) whose characteristics confirm to the environment protection requirement was introduced. The results of indoor test and field application showed that the Glub has great lubricating capacity, can well distributed in drilling fluid, forms strong and thick oil film. It can notable reduce the friction coefficient and torque and meet the requirements of drilling.

Abstract:H8101大斜度定向水平井是为进一步对哈萨克斯坦共和国肯基亚克盐下油藏水平井控制经济可采储量进行评价而部署的。介绍了施工中采用的井眼轨迹控制技术及钻井液体系、钻头的使用情况等。

Abstract:总结分析了新疆北部以往煤田勘探中的常规堵漏措施，在此基础上，介绍了目前常用的堵漏技术及其使用效果。

Abstract:阐述了软硬交替岩层中钻探施工的困难，介绍了投砂钻进法的应用，分析了投砂钻进法的优点。

Abstract:The general procedures for constructing subway are as follows: first excavate the shaft, then horizontal pass, finally ingate. The original design for the shaft excavation in Subway Station at Guangzhou Railway Station of Track Traffic Line 5 of Guangzhou was optimized to directly open the ingate by enlarging the lower section of shaft. The time limit for the project was shortened meanwhile the stability of the structure was ensured. The backfill concrete volume after second liner was reduced. That can be used for reference by similar project.

Abstract:Advance geology exploration is an important safeguard of tunnel excavation. Horizontal drilling technology has the character of directness and exactness. For this reason, Fast Horizontal drilling technology is considered as one of the important geology exploration method. Some important factors , such as drilling position selection, drilling techniques and date treating techniques are studied, taking Qiyueshan tunnel of Yiwan railway as an example. The cooperating method of fast Horizontal drilling technology with other exploration methods is also studied.