Bias large-section tunnel structure of soft stratum adjacent to building

The bias large-section tunnel structure comprises a bias tunnel section arranged on one side of the building, the high-pressure side of a bias tunnel is arranged close to and lower than the building, and the bias tunnel section comprises a bias hidden hole section and two bias open cut hole sections connected to the two ends of the bias hidden hole section respectively. Each unsymmetrical open cut tunnel section comprises an open cut tunnel batter post and an open cut tunnel lining which are connected with each other, the open cut tunnel batter posts and the open cut tunnel linings jointly define an annular supporting structure of the unsymmetrical open cut tunnel sections, each unsymmetrical hidden tunnel section comprises a hidden tunnel batter post, a hidden tunnel lining and an advanced pipe curtain, and the hidden tunnel batter posts are connected between the two open cut tunnel batter posts; the hidden hole inclined columns and the hidden hole linings jointly define an annular supporting structure, the