最后，通过在裂尖前方引人一快变化区，本文得到了一个在裂尖周围应力和速度全连续的渐近解。
Finally, with the introduction of a fast varying zone ahead of the crack tip, a solution with fully continuous stress and velocity fields is obtained.
地下工程开挖过程中，在洞室围岩中会产生拉压交替变化区，当地应力过大时，会产生分区破裂化现象。
Tension-compression alternating regions can be formed around the rock mass during excavation process. The zonal disintegration phenomena may be brought when the geostress is too large.
你可以根据站点、线路、或者行政区查询服务变化。
You can view service changes by station, by line, or by borough.
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