In this project, shotcrete-bolt and slope are used in most segments of the pit. and pile-anchor is used in some important pit segment this scheme is proved to be successful.

该工程采用以喷锚支护为主、上部结合放坡、并用桩锚支护重点坑段的综合方案，经实践证明是成功的。

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The leakage plugging stopple with a hollow expansion bolt used for the support structure of the deep foundation pit comprises an expanding pipe, a hollow bolt, a nut, a sealing rubber mat and a cork;

该深基坑支护结构漏水空心膨胀螺栓封堵塞 包括胀管、空心螺栓、螺母、密封胶垫和软木塞，空心螺栓套在胀管内且其长 度大于胀管长度；

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