在扩管生产中，需要实时了解每根顶杆的长度、外径、使用次数等信息。
The length, diameter and using time of mandril are needed in the process of manufacturing the pipe.
施工中针对网壳结构特点及现场施工条件，采用低空外扩拼装、拔杆群接力提升的方法完成了安装。
Based on the structural characteristics and site conditions, low level spread assembly and pulling bar group relay lifting method is adopted to install the shell.
在研制锚杆机械扩孔器的基础上，进行了扩体型锚杆的工艺试验和抗拔试验研究。
The technological and uplift tests of underreamed anchors are carried out based on the development of mechanical underreamed devices of anchorage.
用双曲线方法对110根挤扩支盘桩的极限承载力进行预测，并与直杆桩预测结果进行对比。
This paper predicate the ultimate bearing capacity of squeezed branch pile based on 110 pile from different site by hyperbola method, and compare with the results of the friction pile's.
用双曲线方法对110根挤扩支盘桩的极限承载力进行预测，并与直杆桩预测结果进行对比。
This paper predicate the ultimate bearing capacity of squeezed branch pile based on 110 pile from different site by hyperbola method, and compare with the results of the friction pile's.
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