(1 廣州容柏生建筑結構設計事務所（普通合伙）， 廣州 510170；2 大悅城控股集團股份有限公司， 北京 100020) 

［摘要］山地建筑的結構設計不僅要考慮結構自身的受力關系，同時要研究結構主體與山地巖土的相互作用。這個相互作用分兩方面，一方面是主體結構承擔周邊不均勻巖土壓力，另一方面是巖土承擔來自主體結構的反作用力。重慶大悅城是位于55m高邊坡上典型的山地建筑，場地中央為基巖面20°~35°的陡峭沖溝，溝內覆蓋厚度為25m的欠固結填土，同時主體周邊巖土壓力分布嚴重不均勻。主要對本山地建筑項目基礎穩定性的研究思路進行了闡述，按不同基礎類型的受力特性確定其剛度取值和抗震性能目標，采用兩個不同計算模型對基礎和場地巖土進行多角度、多水準分析，考慮質量不均勻分布對塔樓基礎進行局部穩定性復核，保證主體結構安全和場地穩定。 

［關鍵詞］山地建筑；基礎穩定性；不均勻地基；基礎水平剛度 

中圖分類號：TU398-7 文獻標識碼：A文章編號：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

作者簡介：徐麟，碩士，一級注冊結構工程師，Email：xulin@gzrbs.com。