(1 广州容柏生建筑结构设计事务所（普通合伙）， 广州 510170；2 大悦城控股集团股份有限公司， 北京 100020) 

［摘要］山地建筑的结构设计不仅要考虑结构自身的受力关系，同时要研究结构主体与山地岩土的相互作用。这个相互作用分两方面，一方面是主体结构承担周边不均匀岩土压力，另一方面是岩土承担来自主体结构的反作用力。重庆大悦城是位于55m高边坡上典型的山地建筑，场地中央为基岩面20°~35°的陡峭冲沟，沟内覆盖厚度为25m的欠固结填土，同时主体周边岩土压力分布严重不均匀。主要对本山地建筑项目基础稳定性的研究思路进行了阐述，按不同基础类型的受力特性确定其刚度取值和抗震性能目标，采用两个不同计算模型对基础和场地岩土进行多角度、多水准分析，考虑质量不均匀分布对塔楼基础进行局部稳定性复核，保证主体结构安全和场地稳定。 

［关键词］山地建筑；基础稳定性；不均匀地基；基础水平刚度 

中图分类号：TU398-7 文献标识码：A文章编号：1002-848X(2021)24-0122-08

Stability analysis of building foundation in complex mountainous area 

XU  Lin1,  SUI  Xiao1,  ZHANG  Wenhua1,  ZHOU  Ding1,  PENG  Linhai1,  FAN  Shengjie2,  YANG  Yiyu2 

(1 RBS Architectural Engineering Design Associates, Guangzhou 510170， China；2 Grandjoy Holding Group Co., Ltd., Beijing 100020， China) 

Abstract: The structural design of mountain buildings not only needs to consider the stress relationship of the structure itself, but also needs to study the interaction of the main structure, mountain rock and soil. This interaction can be divided into two aspects: on the one hand, the surrounding uneven geotechnical pressure borne by the main structure, on the other hand, the reaction force from main structure borne by rock and soil. Chongqing Joycity is a typical mountainou building located on a 55m high slope. The center of the site is a steep gully with bedrock surface of 20°~35 °. The gully was covered with unconsolidated fill with thickness of 25m. At the same time, the rock and soil pressure around the main body is seriously uneven. The research idea of the foundation stability of the foundation project of the mountain area was mainly expounded, and its stiffness value and seismic performance target according to the force characteristics of different foundation types were determined. Adopting two different calculation models to analyze the foundation and site rock and soil by multi angle and multi leveling. Considering the uneven mass distribution, the local stability of the towers was checked to ensure the safety of the main structure and the stability of the site.  

Keywords:mountain building； foundation stability； uneven foundation； foundation horizontal stiffness

作者简介：徐麟，硕士，一级注册结构工程师，Email：xulin@gzrbs.com。