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史俊沛

（廣東重工建設監理有限公司，廣東 廣州 510670）

摘 要：由于隧道下穿建筑物施工過程較為復雜，傳統的建筑物施工變形預警系統大多基于二維的地理信息系統,往往具有可視化能力弱,模型預測準確度可靠差等缺點，提出基于改進BIM的隧道下穿建筑物施工變形預測算法。通過分析施工過程中建筑物產生的沉降變形，獲取建筑施工節點變形向量，構建三維地質BIM模型，將建筑物節點變形向量輸入至三維地質BIM模型中，通過在三維BIM地質模型上疊加動態的體元柵格三維空間場數據,不僅實現了數據的升維表達,同時也解決了傳統靜態BIM地質模型實時性和協同性表達弱的缺點，完成隧道下穿建筑物施工變形的預測。實驗結果表明：所提方法可準確預測隧道下穿建筑物墻體的撓曲變形，具有較高的預測精度。

關鍵詞：改進BIM模型；隧道下穿建筑物；變形預測

中圖分類號：U452      

文獻標志碼：A   

文章編號：1005-8249（2024）02-0098-05

DOI：10.19860/j.cnki.issn1005-8249.2024.02.018

 

 

SHI Junpei

(Guangdong Zhonggong Project Management Co.,Ltd.,Guangzhou 510670,China)

 

Abstract: Due to the construction process of tunnel undercrossing buildings is relatively complex, most of the traditional building construction deformation early warning systems are based on 2D geographic information systems, which often has disadvantages such as weak visualization ability and poor reliability of model prediction accuracy. Therefore, a tunnel undercrossing building construction deformation prediction algorithm based on improved BIM is proposed. By analyzing the settlement deformation of the building during construction, the deformation vector of the building construction node is obtained, the 3D geological BIM model is built, and the deformation vector of the building node is input into the 3D geological BIM model. By superimposing the dynamic volumetric grid 3D space field data on the 3D BIM geological model, the data is not only expressed in ascending dimensions, but also solves the shortcomings of the weak real-time and collaborative expression of the traditional static BIM geological model, Complete the prediction of the construction deformation of the tunnel undercrossing buildings. The experimental results show that the proposed method can accurately predict the bending deformation of the building wall under the tunnel, and has high prediction accuracy.

Keywords: improve the BIM model; tunnel underpass buildings; deformation prediction

作者簡介：史俊沛（1984—），男，本科，高級工程師，主要研究方向：房屋建筑工程。

收稿日期：2023-11-15