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发明公开
CN1483902A 加速冻结局部区域岩土的冻结器布置方法 无效 - 撤回

加速冻结局部区域岩土的冻结器布置方法
摘要：
一种加速冻结局部区域岩土的冻结器布置方法，用于岩土工程人工冻结施工工法，尤其适用于在深厚表土层中用冻结法开凿大断面矿井井筒。在通道开挖入口周围钻凿冻结孔，并在冻结孔内设置由钢管和塑料管组成的冻结器，下放于冻结孔中的冻结器沿开挖通道深部非直线形布置或直线形和非直线形交叉布置，与原有的直线形冻结器布置方法相比，提高了冻结器的后期效率，减少了冻结孔的数量；加快了目标区域岩土的冻结速度，能节约冻结时间与费用；解决了掘砌施工速度快与岩土冻结速度慢之间的矛盾，具有广泛的实用性。
摘要（英）：

The present invention relates to a freezer arrangement method for accelerating the speed of freezing local area rock-soil for cutting rockshaft with large section, and said method includes the following steps: drilling and cutting freezing hole around entrance for excavating channel, placing freezer formed from steel pipe and plastic pipe in the freezing hole, non-linear arranging or linear and non-linear alternatively arranging the freezer placed in the freezing hole along the excavated channel deep-portion, so that it raises the after-efficiency of freezer, and can accelerate the speed of freezing target area rock-soil, and can reduce freezing time and cost.

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