ＪＪＹ型井径仪测量臂释放方法的改进天津市津新岩土工程有限公司刘士江ＪＪＹ型井径仪测量臂的开后，是由束缚盒在泥浆中的反力作用打开的，使用时测量臂的开启经常没有保证，有时不得不中断测量。在实际工作中，我们通过总结经验，对测量臂束缚盒的释放方法进行了改进（... JJY-type caliper arm release method improvements Tianjin Jinxin Geotechnical Co., Ltd. Liu Shijiang JJY caliper after the opening of the measuring arm is bound by the reaction box in the mud box to open the reaction force, the use of measuring arm Often there is no guarantee of opening, sometimes having to interrupt the measurement. In practical work, we summarize the experience, the release of the measuring arm bound box has been improved (...