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（1 濟(jì)南大學(xué)，濟(jì)南 250022；  2 同濟(jì)大學(xué)地下建筑與工程系，上海 200092）

［摘要］由于地鐵平行換乘車(chē)站基坑周?chē)h(huán)境的特殊性，其周?chē)灰茍?chǎng)分布和圍護(hù)結(jié)構(gòu)變形與一般基坑明顯不同，找出其中的規(guī)律對(duì)于設(shè)計(jì)中確定該類基坑的保護(hù)等級(jí)、施工過(guò)程中保護(hù)臨近已建地鐵車(chē)站及周?chē)ㄖ陌踩@然具有重要的意義。依托地鐵重大綜合工程，根據(jù)現(xiàn)場(chǎng)的監(jiān)測(cè)數(shù)據(jù)，結(jié)合有限元計(jì)算，分析了地鐵基坑周?chē)h(huán)境位移場(chǎng)的分布特點(diǎn)，并對(duì)已建車(chē)站結(jié)構(gòu)的變形和內(nèi)力分布進(jìn)行了分析，可為同類工程的設(shè)計(jì)和施工參考。

［關(guān)鍵詞］平行換乘；基坑；位移場(chǎng)；地鐵車(chē)站

Study on surround ground movement caused by deep excavation of exchanging subway station

Liu Yan 1，2, Liu Guobin 2, Liu Tao 2

 (1 Ji′nan University, Ji′nan 250022, China； 2 Civil Engineering Institute of Tongji University, Shanghai 200092, China)

Abstract:The development and extension of the railway induce vary kinds of exchanging types. The parallel station is one of them. The soil layer movement and the deformation of the diagram wall have their own characteristics which are different from the common excavation. All these are very important for defining the protect grads and protecting the near tunning station and building.     Based on the measure data of a great parallel metrostation construction in Shanghai, the law of the surrounding soil movement and the deformation and inerter stress of the running station structure are studied, which can provide references for the designing, construction and research in similar engineering.

Keywords:parallel station；excavation；soil movement; railway station