Choosing Henan Press Center as case, the application of prestressed anchorage pipe in pit retaining structures is discussed.
以河南新闻培训中心为例，介绍预应力锚管在基坑围护中的应用。
The pipe string includes double hydraulic cylinder with anchorage packer, double hydraulic cylinder without anchorage packer, releasing tool, reversing valve and centralizer.
该工艺管柱主要由双缸液压锚定封隔器、双缸液压无锚定封隔器、液压丢手工具、换层开关、扶正器等工具组成。
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