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摘要：
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熟料卸车廊道施工属半地下结构，其南端与一档水石坝相邻。本文专述在水补给充分，又有强渗透性砂层的特殊条件下，采取大口井抽水与帷幕止水相结合的基坑开挖降水的体会。
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The clinker car-unloading gallery was a semi - underground structure, its south end borders a water protection dyke. An experience of combining a large water- pumping well with a sealing curtain technique was adopted for dewatering in the excavation of foundation trench, under the special conditions of full water supply and strong permeable sand layers.
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