理論研究 2025年 第卷 第18期
DOI: 10.7672 / sgjs2025180020
地鐵橫通道轉大斷面正洞施工力學規律分析
楊林1,汪洋2,姬付全1,陳培帥1
作者簡介：
楊林，高級工程師，E-mail: 744417987@ qq. com作者單位：
1.中交第二航務工程局有限公司，湖北武漢 430040;2.中交二航局（昆明）建設有限公司，云南昆明 650000基金項目：
?中交二航局科技研發項目（EHYF-2020-B-11-085）摘要：
針對橫通道轉大斷面正洞施工過程復雜、力學轉換頻繁、施工安全風險高的問題，以烏魯木齊地鐵黃山街站為背景，采用數值仿真手段，對其轉正洞施工過程中圍巖及支護結構應力、位移進行分析，結果表明：在橫通道轉正洞施工時，采用“橫通道框架梁+交叉口中隔壁”的支護形式，施工過程中的位移、應力在可控范圍內；轉正洞施工過程中，臨時支撐拆除是整個破壁施工關鍵工序，施工過程中應注意加強現場監測。
English：
In view of the complex construction process, frequent mechanical conversion and highconstruction safety risk of the main tunnel with large cross section, taking Huangshan Street Station ofUrumqi subway as the background, the stress and displacement of surrounding rock and supportstructure during the construction of the main tunnel were analyzed by numerical simulation. The resultsshow that:During the construction of the cross passage to the main tunnel, the support form of crosspassage frame beam+intersection partition wall is adopted, and the displacement and stress during theconstruction process are basicallywithin a controllable range. During the construction process of thecross passage to the main tunnel, the removal of temporary supports is a key process for the entire wallbreaking construction. During the construction process, attention should be paid to strengthen in-situmonitoring.