【作者】 黄友建；

【导师】 杨小平； 王昭良；

【作者基本信息】 华南理工大学 ， 建筑与土木工程， 2010， 硕士

【摘要】 在我国的岩溶地区,工程建设中一般会遇到特殊的地质问题。溶洞、土洞和地层塌陷这些不良工程地质情况,在溶岩地区或多或少会不可避免地出现,对工程建设造成不利影响,使建(构)筑物附近产生地面塌陷、不均匀沉降等危害,严重时危及建筑物的正常使用。因此,作为在岩溶地区的一种普遍存在的不良地质现象,应对岩溶时设计、施工时万不可掉以轻心,才能将发生事故的危险降低到最小限度。随着现代工程技术的发展,岩溶地基的处理和设计的方法正朝着更加可靠、先进、经济的方向发展,本文针对连州市地处岩溶地区的实际工程背景,首先研究了连州当地的具体工程地质情况,然后总结了其他岩溶地区在工程建设过程中一般性的处理方法和应对措施,最后对连州当地典型工程案例进行评价分析。从连州当地的地质情况、场地特征、具体施工条件等出发,总结了符合连州地区的不同基础的形式和不同的地基处理方法,探讨了一些地基基础处理和设计的一些新进展、理念及其它们在连州应用实施的可能。由此,提炼了更符合连州当地实际岩溶地质背景的工程经验,为今后连州和其他岩溶地区的工程建设提供一定的借鉴意义。但同时也提出了一些新的问题,有待进一步的研究和解决。更多还原

【Abstract】 In the karst areas of China, project construction will always encounter one kind of special geological problems. In these region , adverse geological conditions such as Caves, holes and soil collapse will, more or less ,be appeared inevitably.And they cause adverse affect on the constructions ,such as subsidence nearby, differential settlement and other hazards.Even in the case of serious situation,it will impact on the building’s normal use. Therefore, as a widespread adverse geological phenomenon in the karst region, these adverse geological problems must not be taken lightly in the work of design and construction, the risk of accidents can be reduced to minimum when dealing with them.As the development of modern civil engineering techniques, methods of ground treatment and foudation design in karst regions are moving to a more reliable, advanced and economic direction.This paper aims at the practical engineering background of karst areas where Lianzhou locates in. Firstly, the local specific geological conditions of Lianzhou are concerned. Then, Summarise of the general approach and response measures in other karst regions in the course of the construction is given. And finally, the local evaluation and analysis of typical engineering cases in Lianzhou are made. Base on the engineering geological conditions, site characteristics, the specific condition in construction process etc., this paper summaries different styles of foudation and different forms of groud treatment method that is suitable to Lianzhou. This paper discusses some new progress and ideas in foudation treatment and design to judge the probability of these putting into practice in Lianzhou.In this case, this paper extracts engineering experience that is more suitable to the actual condition of the karst geological background in Lianzhou.By this engineering experience, this paper can provide a reference to the project construction for the future in Lianzhou and other kaest region. But it also raised some new questions to be further studied and resolved.更多还原