论文部分内容阅读
长螺旋钻进,国外早已广泛地应用于工程地质勘察和工程施工钻孔,如建筑工程的基础灌浆孔地基工程孔以及物探爆破孔,电线杆的固定孔等等。由于这种钻进方法要求用长行程动力头式钻机,而我国现有的钻机主要是立轴式和转盘式的,因此无法应用。最近,我们用新研制出的YDC-100型全液压动力头式车装钻机进行了这种钻进方法的试验工作,取得了良好的效果。现将试验情况介绍如下:
Long spiral drilling, abroad has long been widely used in engineering geological prospecting and construction drilling, such as construction of the foundation grouting hole foundation engineering holes and geophysical blasting holes, poles and other fixed holes and so on. Because of this drilling method requires the use of long stroke powered head rig, and our existing drilling rig is mainly vertical axis and turntable, it can not be applied. Recently, we use the newly developed YDC-100 full hydraulic power head car drilling rig for this drilling method of testing work and achieved good results. Now the test conditions are as follows: