Abstract:Gas explosion accident in coal mine is the current focus of the public. The causes of gas explosion were analyzed. The suggestion that the gas disaster in coal mine be controlled by drilling engineering with technology advancement was put forward.

Abstract:Benoto cast-in-place pile is widely applied in foundation engineering in Hong Kong. This paper presents the applications of Benoto Method for the ultra-deep bored pile of shelter boat anchorage located at Tai O, Hong Kong. The advantages and its prospect of development in China are also briefly analyzed.

Abstract:软基监测技术是软基处理施工中观测路堤稳定性、控制路堤填筑进度、判断软基处理效果的重要手段之一。重点介绍了路基填筑过程中沉降、水平位移、孔隙水压力监测成果在施工中的应用。

Abstract:在上海轨道交通明珠二期南浦大桥地铁站工程超深槽段地下连续墙施工中，通过搅拌桩加固并在地连墙与桥墩之间增加了水泥掺量为20%的SMW素桩，在基坑内的被动区抽条加固部分采取局部水泥掺量提高到12%有效地改善土的力学指标，控制槽壁变形和对桥墩的影响，此外，采用重斗强抓方法顺利掘进硬土层。

Abstract:SMW工法作为一种施工速度快、止水效果好、工程造价低、对环境无污染的基坑围护方法已在上海得以推广应用，该工法在天津地铁一号线二纬路站基坑围护中的应用在天津属首次，取得了很大成功。介绍了其施工技术及质量控制措施。

Abstract:介绍了注浆法在某高速公路路基加固和路面抬升工程中的应用，对注浆孔的设置和注浆施工工艺进行了分析论述，同时提出了在类似工程施工中应该注意的几点问题。

Abstract:This article introduced the construction technology, the technical measures used in cold weather construction, static load test of the single pile composite foundation, check and measure of the pile integrity of the CFG piles in Langfang Jixiang House Estate.

Abstract:土钉支护为一种用于土体开挖和边坡稳定的新型支挡结构,其应用已经拓展到软土地基基坑开挖中，根据工程实际并参照国内外应用研究现状，论述了土钉支护应用在软土地基的设计、施工方法及对策。

Abstract:天津市澳景大厦工程经综合考虑基础及围护结构、施工工期、临时支护结构的投资、成本、土方开挖及基础施工难易程度、结构平面形状、地下土质情况、施工安全及对环境的影响等几个方面因素，决定采用双排水泥搅拌桩中插入预制桩的方案。介绍了双排水泥搅拌桩中插入预制桩施工过程中所遇的问题及解决的措施。

Abstract:介绍了单轴浆液搅拌桩在海积吹填土及人工填土中的运用和主要参数、施工过程中出现的主要问题及解决办法。

Abstract:总结分析了旋挖钻机在施工中掉钻的各种原因，详述了其预防措施和处理方法。

Abstract:The paper introduces the construction technology of bored pile on Donghai Bridge. It explains some key technology in detail. Meanwhile, the bored equipment is introduced, and it also introduces how to compound fresh slurry used.

Abstract:This article introduces the overall condition of Xingling landslide improvement project and the accident, and theoretically analyzes the stability reason of the earth-retaining wall’s collapse in the project, indicates some problems in design and construction based on the hydrological and geological environment.

Abstract:福建省三明市高岩新村80幢东侧边坡因坡顶超载，导致边坡产生了蠕动变形，危及80幢房屋安全。因此进行了坡顶限载、坡顶截水，并采用预应力锚杆对边坡进行加固，取得了良好的治理效果。

Abstract:介绍了奉节县吴家湾县医院住院部北侧高边坡地质灾害治理中预应力锚索抗滑桩板墙施工工艺及效果。

Abstract:Seepage Block Wall Making Machine CSG-40 was developed from CSF-30. The main modification, key parts and their peculiarity, the technical specification of the machine, application results and popularization suggestion were introduced.

Abstract:CFG pile technique was met with a warm acceptance due to its non-pollution, low noise, high rate of penetration, low cost. It has been widely used in foundation of tall buildings and road. The paper introduced the technical parameters, design features and conditions of service.

Abstract:Different types of feeding mechanism of No-dig guiding boring system (GBS) are introduced, and the characteristics of each mechanism are analyzed. This article may provide helps for the design of feeding mechanism.

Abstract:根据基础桩孔施工生产的实际情况，对镶齿锥型螺旋钻头、套齿短螺旋钻头、无前导式冻土短螺旋钻头、前导式平底长螺旋钻头、硬地层捞砂钻斗、无隔板式硬岩工程钻头、底开式钻斗、双底捞砂钻斗从结构特征、适应地层到使用注意事项进行对比探讨，并分别简要进行了实例分析。

Abstract:Based on the examples of mining connection well construction for extracting soda in Henan, this thesis introduces the techniques in well design, drilling track control, well cementation, pressure cracking in the construction of mining connection wells. The thesis also describes how to solve various technology problems encountered in the construction.

Abstract:在施工一眼深度300 m的供水井中,为解决大厚度漂砾石地层中钻进施工难度大的问题,采用气举反循环钻进工艺,配合大口径牙轮钻头钻进一次成井的方法,取得了较好的效果。

Abstract:In order to solve the water and sand inflows during the construction of Yuanliangshan Tunnel, as well as to speed up the construction of big stride of inlet station, 10 accessorial tunnels were creatively built. They are transverse, geological explore, roundabout and draining tunnels. The paper mainly introduces the design and construction of these accessorial ones.

Abstract:龙首二级(西流水)水电站引水发电洞高压水道段坡度50°，长466.8 m，介绍了该高压水道的超前锚杆预加固、初期支护、控制爆破、监控量测等施工技术措施，成功地完成了坡度50°的斜管段及平卧管段断层破碎带软弱地层的施工。