大断面矩形顶管法在城市核心区轨道交通地铁车站建设中尚无相关工程经验，为满足其施工过程中的沉降控制要求，实现地铁车站施工的微扰动，以国内首个软土地区大断面矩形顶管法暗挖车站上海轨道交通14号线静安寺站为工程背景，详细介绍其已贯通的东线隧道施工沉降控制技术，即设定合理的推进参数、采用新型的管节止退装置、研发使用新型减摩触变泥浆和相应的压注工艺。其中，土舱上部土压力实际值略高于设定值，差异控制为-1.1%~7.5%，总推力、主刀盘转矩、推进速度与主刀盘转速等主要参数实际值严格控制在设定值范围内；新型的管节止退装置将管节回缩量控制在35 mm以内；新型减摩触变泥浆性能以满足间隙填充为主，兼顾减小土体与管节间的摩擦力。基于地表实测变形数据分析表明，东线顶管隧道施工过程中，纵向最大累计沉降发生在距接收井约18 m处，约为2倍主刀盘直径，地表整体沉降控制在-15~5 mm。

There is no relevant engineering experience of large crosssection rectangular pipe jacking method in  the construction of metro stations in urban core area. The Jing′an Temple station of line No.14 of Shanghai metro, the first large crosssection rectangular pipe jacking methodconstructed underground station in soft soil, is taken as an example, and the construction settlement control techniques of the east line tunnel including reasonable propulsion parameters, new antireaction system, new antifriction thixotropic mud and corresponding pressure injection technology are introduced in detail. The actual value of the soil pressure on the upper part of the soil camber is slightly higher than the set value, and the difference is controlled between 1.1% and 7.5%. The actual values of main parameters such as total thrust, main cutterhead torque, and propulsion speed are strictly controlled within the set value range. The retraction of the pipe is controlled within 35 mm by using new antireaction device. The new antifriction thixotropic mud can perfectly fill the gaps and reduce the friction between the soil and the pipe. The analytical results of measured surface deformation data show that during pipe jacking of east line, the maximum cumulative longitudinal settlement occurs at area 18 m above pipe, i.e. about 2 times of pipe jacking diameter, and the overall surface settlement is controlled between -15 mm and 5 mm.