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28日23时40分许，深圳市互联网信息办公室官方微博消息称，根据专家组现场研判，初步认为该建筑采用沉管灌注桩基础，属于摩擦桩型，且建筑下方有暗渠，由于房屋基底土层较差，在暗渠水流常年作用下造成桩周水土流失和 ...
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