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JP2013023888A Survey device and survey method 有权
标题翻译：调查设备和调查方法
公开(公告)号：JP2013023888A
公开(公告)日：2013-02-04
申请号：JP2011159157
申请日：2011-07-20
申请人： Kajima Corp , 鹿島建設株式会社 , Chemical Grouting Co Ltd , ケミカルグラウト株式会社 , Nippon Chika Tansa:Kk , 株式会社日本地下探査
发明人： SHIRASAGI TAKU , TATESHITA KAZUYUKI , KUMEGAWA MASANORI , NORO YOSHITAKA , WATANABE YOSUKE , IMAZATO TAKEHIKO
IPC分类号： E02D3/12 , G01N27/04
摘要： PROBLEM TO BE SOLVED: To suitably evaluate ground improvement in a free boring type ground improvement construction method.SOLUTION: The ground improvement is evaluated by: boring a ground G by a universal boring machine 1 with a drilling rod 2; inserting an injection outer tube 3 fitted with a spacer 6 forming a gap between a plurality of electrodes 8 to which an electric wire 7 connected onto the ground and the drilling rod 2 into the drilling rod; extracting the drilling rod 2 from a boring hole B while leaving the injection outer tube 3 in the boring hole B; supplying electric power to the electrodes 8 through the electric wire 7 and measuring specific resistance of the ground G before an improving material is injected; inserting the injection inner tube 10 into the injection outer tube 3, discharging the improving material from the injection inner tube 10, and thus injecting the improving material into the ground G; supplying electric power to the electrodes 8 through the electric wire 7 and measuring specific resistance of the ground G after the improving material is injected; and calculating the difference between the real specific resistance of the ground G before the improving material is injected and the real specific resistance of the ground G after the improving material is injected.
摘要翻译：要解决的问题：适当地评价自由镗孔式地面改进施工方法中的地面改良。解决方案：通过以下方式评估地面改善：用具有钻杆2的通用钻孔机1镗孔地面G; 插入安装有间隔件6的注射外管3，间隔件6在连接到地面上的电线7和钻杆2之间的多个电极8之间形成间隙; 从钻孔B中取出钻杆2，同时将注射外管3留在钻孔B中; 通过电线7向电极8提供电力，并且在注入改进材料之前测量地面G的比电阻; 将注射内管10插入注射外管3中，从注射内管10排出改进材料，从而将改进材料注入地面G; 通过电线7向电极8提供电力，并且在注入改进材料之后测量地面G的电阻率; 并且计算注入改进材料之前的地面G的实际电阻与注入改进材料后的地面G的实际电阻率之差。版权所有（C）2013，JPO＆INPIT

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