摘要:伴随着国内超高层建筑的迅猛发展，深基坑工程的规模和深度也在不断扩大，更多的深基坑出现在建筑和人口密集的地区，这对基坑工程的设计和施工提出更高的要求^[1]。然而，现行二维勘察资料存在表达不完整、不准确等问题，制约了工程参建各方对岩土工程勘察数据的有效应用。BIM技术具有三维可视化及参数化的特性^[2], 可将抽象、复杂的勘察数据信息构建为赋予地质信息数据的数字化三维模型，基于数字化三维地质BIM模型进行沟通与决策可提升工程设计方案与施工方案的科学性。文章以前海交易广场基坑及地下室工程BIM应用为例，着重阐述BIM技术在复杂地质与桩基工程中的应用过程，并以项目真实数据进行对比分析，论证BIM应用可行性，以期为同类复杂地质基坑工程建设提供参考。

Abstract: With the rapid development of domestic super high-rise buildings in China, both the scale and depth of deep foundation pit projects keep expanding, and more deep foundation pits appear in the areas with dense buildings and population, which puts forward higher requirements for the design and construction of foundation pit projects. However, the present 2D survey data are incomplete and inaccurate, which restricts the effective application of geotechnical survey data by all parties involved in the project. The BIM technology, with its own characteristics of 3D visualization and parameterization, is able to apply the information of abstract and complex survey data to construct a digital 3D model with given geological information data. Then, communication and decision-making according to the digital 3D geological BIM model will improve the scientificity of engineering design scheme and construction scheme. This paper takes the BIM application in the foundation pit and basement engineering of the Qianhai Trading Plaza Project an example, to elaborate the application process of BIM technology in complex geology and pile foundation engineering. The feasibility of BIM application is demonstrated by comparing and analyzing the real data of the project. The study is able to provide reference for the construction of similar complex geological foundation pit.