cdddd:矩形人工挖孔方桩施工方案
https://wenku.baidu.com/view/717cd13a05a1b0717fd5360cba1aa81145318f04.html
山区铁路路基桩板墙方形人工挖孔桩施工技术
http://xueshu.baidu.com/usercenter/paper/show?paperid=7c6ee648b260e4ba6c0c4447669c6774&site=xueshu_se
2019矩形人工 .. (2020-05-19 08:25)