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发明公开
CN104632250A 圆形基坑倒挂管片装配式衬砌结构及其施工方法 无效 - 撤回

圆形基坑倒挂管片装配式衬砌结构及其施工方法
摘要：
本发明涉及一种圆形基坑倒挂管片装配式衬砌结构及其施工方法。该衬砌结构主要由冠梁、预制标准管片、预制邻接管片、内支撑组成；基坑顶部设置有冠梁，冠梁下部的基坑周围设置从上到下设置有多层预制标准管片与预制邻接管片，每层标准预制管片与邻接预制管片拼装构成为一环管片；基坑内部设置有内支撑；在预制管片上预留有注浆孔以及连接孔洞。本发明设计合理，技术可行，管片采用预制拼装，快速施工，节省工期。综合效益显著，具有广阔的应用价值与发展前景。
摘要（英）：

The invention relates to a prefabricated tunnel lining structure of inverted segments for a round foundation pit and a construction method of the prefabricated tunnel lining structure. The prefabricated tunnel lining structure is mainly composed of a top beam, prefabricated standard segments, prefabricated adjacent segments and inner supports. The top beam is arranged at the top of the foundation pit, multiple layers of prefabricated standard segments and prefabricated adjacent segments are arranged around the foundation pit below the top beam from top to bottom, and each layer of prefabricated standard segments and prefabricated adjacent segments are spliced to form a ring segment; the inner supports are arranged in the foundation pit; grouting holes and connection holes are reserved in the prefabricated segments. The prefabricated tunnel lining structure is reasonable in design, the technology is feasible, the segments are spliced in a prefabricated mode, construction is rapid, and the construction period is shortened. The prefabricated tunnel lining structure is remarkable in comprehensive efficiency and has wide application value and development prospects.

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