公开(公告)号：JP2014122499A

公开(公告)日：2014-07-03

申请号：JP2012279353

申请日：2012-12-21

Applicant: Kajima Corp ,  鹿島建設株式会社 ,  Kfc Ltd ,  株式会社ケー・エフ・シー

Inventor： YAMADA KENJI ,  KOBAYASHI KOJI ,  YOSHIDA MASAHIRO ,  IMOTO ATSUSHI

IPC: E21D20/00 ,  G01L1/00 ,  G01L1/06 ,  G01L5/00

Abstract: PROBLEM TO BE SOLVED: To easily and promptly detect rock mass deformation through visual recognition from a separated place and to eliminate time and efforts for special work such as installing a load detection device between a nut and a washer or the need to especially elongate a protruding length of an anchor material such as a lock bolt from a rock mass.SOLUTION: A rock mass deformation detection structure comprises: a lock bolt 11 which is installed in a rock mass 3 and provided with a male screw part 111 in the vicinity of an end of a portion protruding from the rock mass; a washer 12 which is extrapolated to the protruding portion of the lock bolt 11; and a nut 13 which is threaded with the male screw part 111 of the lock bolt 11 and presses the washer 12 to the side of the rock mass while being in contact with the washer 12. In a region on a nut-side surface 123 of the washer 12 which is not in contact with the nut 13, a coating 125 is provided which has a color different from that of a body 121 of the washer 12 and is exfoliated by deforming the washer 12 a predetermined amount or more.

Abstract translation: 要解决的问题：通过从分离的位置通过视觉识别来容易且及时地检测岩体变形，并且消除诸如在螺母和垫圈之间安装负载检测装置的特殊工作的时间和努力，或者需要特别地伸长突出 诸如来自岩体的锁定螺栓的锚固材料的长度。解决方案：岩体变形检测结构包括：锁定螺栓11，其安装在岩体3中，并且在其附近设置有阳螺纹部111 从岩体突出的部分的端部; 外推到锁定螺栓11的突出部的垫圈12; 以及螺母13，其与锁定螺栓11的外螺纹部分111螺纹连接，并且将垫圈12在与垫圈12接触的同时将垫圈12压在岩体的侧面。在螺母侧表面123上的区域 与螺母13不接触的垫圈12，设置有与垫圈12的主体121的颜色不同的颜色的涂层125，并且通过使垫圈12变形预定量以上而使其剥离。