摘要
为满足试验设备的使用要求,固定试验设备的预埋钢板需达到较高的定位精度,某新建大型土木试验室内建有70m长槽和30m短槽,槽道内需安装可移动试验设备,为此共布置了近百组预埋钢板。通过采用二次成型的施工方法,将施工过程有效分解为固定螺栓的初步安装和预埋钢板的准确定位两部分,分阶段进行误差控制,将预埋钢板的高精度定位标准逐步落实为具体施工要求,最终实现了预期精度标准。
Pre-embedded steel plate used to fi x test equipments shall have high positioning accuracy, so as to satisfy the requirements of test equipments. 70 m long channel and 30 m short channel are built in a newly-built civil engineering test laboratory and traveling test equipments shall be installed in the channels, so nearly one hundred pre-embedded steel plates are set and post-forming construction method is adopted to effectively divide the construction process into two steps, including preliminary installation of fixing bolt and accurate positioning of pre-embedded steel plate. Construction errors are controlled in different phases and high-accuracy positioning standard for pre-embedded steel plate is gradually implemented as concrete construction requirements, so as to realize expected accuracy standard at last.
引文
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