xx工业区旧城改造项目岩溶地层钻孔灌注桩漏浆与及埋钻问题探讨毕业论文.docx

本科毕业论文（设计） 题目： xx工业园区旧城改造项目岩溶地层 钻孔灌注桩漏浆与及埋钻问题探讨 摘 要 我国南方是一个岩溶发育比较集中地地区，随着南方经济建设的发展，岩溶地区工程基础施工建设项目也越来越多。因此受岩溶地层的影响，引发了很多工程地质问题诸如岩溶地基受岩石的不完整性失去了稳定性和岩溶地层做钻孔灌注桩过程中遇到漏浆、埋钻等问题受到人们的关注。因此，全面准确分析这些问题原因，设计正确的岩溶处理方法对岩溶地区工程建设有重大意义。目前，国内外学者对岩溶地层施工中遇到的卡钻、埋钻、漏浆、堵漏和防斜等问题进行了很多研究，而且也取得很多成就和成果，但是应用到实际工程中出现的岩溶问题，处理方法达不到现场预期效果。 武汉市江夏区马山工业园区旧城改造项目C块地大面积区域属于石灰岩岩溶强发育地区，其建筑桩基采用冲击钻孔灌注桩施工工艺，岩溶强发育给施工带来了很多问题。由于岩溶地层出现复杂裂隙和多种类型溶洞导致施工过程出现多次漏浆和埋钻问题。 本文针对该项目中出现的漏浆和埋钻问题通过现场调研和参考相关文献进行科学分析，结合现场处理的方法对其进行合理分析并提出最优解决方法。 关键词：岩溶地层、钻孔灌注桩、漏浆、埋钻 、科学分析、改进 ABSTRACT South China Karst is a relatively concentrated area, with the development of the Souths economic construction, foundation construction in karst area construction projects is also increasing.Therefore it affected karst formations, caused a lot of problems such as engineering geological karst rock foundation that does not lose the stability and integrity of the karst formations encountered in doing bored mud leakage, underground drilling and other issues attentions.At present, domestic and foreign scholars karst formations encountered in the construction of stuck pipe, buried drilling, mud leakage, plugging and anti-oblique and other issues a lot of research, but also many achievements and results, but the combination of the actual project appears enough for karst issues addressed reach the site is expected to expectations. Masan city of Wuhan Industrial Park redevelopment project C block belonging to a large area of strong development in Karst regions, the impact of the use of building pile bored pile construction technology, strong karst development to the construction of a lot of problems.Since the emergence of complex fractures and karst formations cave leading to many types of construction appears more than once plasma leakage and buried pipe problems.