针对工程项目中地下管线开挖和迁改存在的众多问题,拟通过研究BIM(Building Information Modeling)技术在地下管线三维信息模型建模中的应用,初步解决实际中可能遇到的问题。首先通过Micosoft Visual Studio平台对BIM软件进行二次开发,...针对工程项目中地下管线开挖和迁改存在的众多问题,拟通过研究BIM(Building Information Modeling)技术在地下管线三维信息模型建模中的应用,初步解决实际中可能遇到的问题。首先通过Micosoft Visual Studio平台对BIM软件进行二次开发,建立管线系统模块,结合所创建的地下管线附属物族库,将已探明的电力、信息、给水等各类型地下管线信息数据(主要为Excel格式)与其相对应的附属物批量载入管线系统,建立地下管线三维模型。然后利用BIM软件管线碰撞检测功能及人工识别,获取有用碰撞信息,依据实际经验或现场复测,修正其中错误的管线数据,更正管线模型,使其更为真实、直观地反映地下管线的分布情况,为后续工程设计、施工、管理提供依据。展开更多
文章以上海市谈家桥路旧住房拆除重建工程基坑为研究案例,利用Midas GTX NX软件构建3D模型,对比分析了有无混凝土支撑轴力伺服两种情况下的基坑开挖数值模拟结果,并结合现场实测数据进行了深入研究。研究结果显示,采用混凝土支撑轴力伺...文章以上海市谈家桥路旧住房拆除重建工程基坑为研究案例,利用Midas GTX NX软件构建3D模型,对比分析了有无混凝土支撑轴力伺服两种情况下的基坑开挖数值模拟结果,并结合现场实测数据进行了深入研究。研究结果显示,采用混凝土支撑轴力伺服技术能够显著减少基坑变形,满足了基坑微变形控制要求,对敏感区周边环境保护具有重要作用;基于实测数据修正的基坑开挖模型可精确模拟单一施工要素变化后的变形情况,为基坑变形机理研究和预测提供了重要参考。This article takes the foundation pit of the old housing demolition and reconstruction project on Tanjiaqiao Road in Shanghai as a research case, constructs a 3D model using Midas GTX NX software, compares and analyzes the numerical simulation results of foundation pit excavation under two conditions: with and without concrete support axial force servo, and conducts in-depth research based on on-site measured data. The research results show that the use of concrete support axial force servo technology can significantly reduce the deformation of foundation pits, meet the requirements of micro deformation control of foundation pits, and play an important role in protecting the surrounding environment of sensitive areas;The excavation model of foundation pits modified based on measured data can accurately simulate the deformation situation after a single construction element changes, providing an important reference for the research and prediction of foundation pit deformation mechanisms.展开更多
文摘针对工程项目中地下管线开挖和迁改存在的众多问题,拟通过研究BIM(Building Information Modeling)技术在地下管线三维信息模型建模中的应用,初步解决实际中可能遇到的问题。首先通过Micosoft Visual Studio平台对BIM软件进行二次开发,建立管线系统模块,结合所创建的地下管线附属物族库,将已探明的电力、信息、给水等各类型地下管线信息数据(主要为Excel格式)与其相对应的附属物批量载入管线系统,建立地下管线三维模型。然后利用BIM软件管线碰撞检测功能及人工识别,获取有用碰撞信息,依据实际经验或现场复测,修正其中错误的管线数据,更正管线模型,使其更为真实、直观地反映地下管线的分布情况,为后续工程设计、施工、管理提供依据。
文摘文章以上海市谈家桥路旧住房拆除重建工程基坑为研究案例,利用Midas GTX NX软件构建3D模型,对比分析了有无混凝土支撑轴力伺服两种情况下的基坑开挖数值模拟结果,并结合现场实测数据进行了深入研究。研究结果显示,采用混凝土支撑轴力伺服技术能够显著减少基坑变形,满足了基坑微变形控制要求,对敏感区周边环境保护具有重要作用;基于实测数据修正的基坑开挖模型可精确模拟单一施工要素变化后的变形情况,为基坑变形机理研究和预测提供了重要参考。This article takes the foundation pit of the old housing demolition and reconstruction project on Tanjiaqiao Road in Shanghai as a research case, constructs a 3D model using Midas GTX NX software, compares and analyzes the numerical simulation results of foundation pit excavation under two conditions: with and without concrete support axial force servo, and conducts in-depth research based on on-site measured data. The research results show that the use of concrete support axial force servo technology can significantly reduce the deformation of foundation pits, meet the requirements of micro deformation control of foundation pits, and play an important role in protecting the surrounding environment of sensitive areas;The excavation model of foundation pits modified based on measured data can accurately simulate the deformation situation after a single construction element changes, providing an important reference for the research and prediction of foundation pit deformation mechanisms.
