建筑工程中地质特征及岩土工程支护研究  

Study on geological characteristics and geotechnical engineering supporting in construction engineering

作　　者：李浩[1] 李春艳[1] 张嵩[1] 谢英美 Li Hao;Li Chunyan;Zhang Song;Xie Yingmei(Kunming Metallurgy College,Kunming 650000,China)

机构地区：[1]昆明冶金高等专科学校,云南昆明650000

出　　处：《能源与环保》2023年第1期181-186,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：2016年广西科学研究与技术开发计划项目(2016BC17054)。

摘　　要：为提升建筑工程应用过程中的稳定性,提出了建筑工程中地质特征及岩土工程支护研究。以昆明市某深基坑高层建筑工程为例,从区域地貌与地层结构分布特征、地基土物理力学性质变化特征和水文地质与地震效应特征三方面,分析该建筑工程所在区域的地质特征。采用CFG桩复合地基与基坑围护结构,处理建筑岩土工程。基于加固区与下卧层内的附加应力,确定地基整体沉降量。基坑支护处理选用喷浆土钉墙基坑支护方案,利用圆弧滑动面条分法,确定建筑工程基坑的整体稳定性能。结果表明,分析建筑工程地质特征并有针对性地进行岩体工程处理,能够显著降低建筑工程基坑内桩的沉降量与基坑水平位移量,提升建筑工程的稳定性。In order to improve the stability of construction engineering application, the geological characteristics and geotechnical engineering support research in construction engineering were proposed.Taking a deep foundation pit high-rise building project in Kunming as an example, the geological characteristics of the area where the building project was located were analyzed from three aspects: the distribution characteristics of regional landform and stratum structure, the change characteristics of physical and mechanical properties of foundation soil and the characteristics of hydrogeology and seismic effects.CFG pile composite foundation and foundation pit retaining structure were used to deal with building geotechnical engineering.Based on the additional stress in the reinforcement area and the underlying layer, the overall settlement of the foundation was determined.The shotcrete soil nailing wall foundation pit support scheme was selected for the foundation pit support treatment, and the overall stability performance of the foundation pit of the construction project was determined by using the arc sliding surface slice method.The results showed that the analysis of the geological characteristics of the building engineering and the targeted treatment of the rock mass engineering could significantly reduce the settlement of the piles in the foundation pit and the horizontal displacement of the foundation pit, and improve the stability of the building engineering.

关 键 词：建筑工程 地质特征 岩土工程支护 地层结构 复合地基 支护结构 

分 类 号：TU44[建筑科学—岩土工程]