【摘要】 利用水平螺旋钻进铺设地下管道的方法，并在此基础上对其进行钻进工艺方法改进，在降低钻机动力消耗、减小体积、降低制造成本的基础上，设计一种小型钻机，适用于我国非开挖施工市场的短距离、小跨度的地下管线穿越施工。更多还原

【Abstract】 Based on the technological process of auger boring, the new type trenchless rig is designed and much improved to cut down the drain on power and reduce the production costs. The new rigwill be used to lay the short distance and span underground pipe, and will satisfy the trenchless construction markets of our country.更多还原