【摘要】 在地质造孔施工中,对于穿透卵石层进行岩体灌浆施工的常规方法是采用跟管钻机造孔下设预埋钢管,再进行岩体钻灌施工。文章讲述穿透近30m深度卵石层的跟管造孔工法的成功应用,既解决了砂卵砾石层采用常规工法不成孔的难题,又缩短了工期,节省了投资,为今后解决类似地质情况的施工提供了范例。更多还原

【Abstract】 In the construction of geological making hole,for grouting construction of rock mass through the pebble stratum,the conventional method is to use a pipe to make holes next to lay pre-buried steel pipe,and then drill and grout in the rock mass. The paper describes the successful application of piping making holes method in pebble stratum through 30 meters depth,which not only solves the problem,not easy to form holes constructed in sandy pebble and gravel stratum,but also shorten the construction period,save the cost,and supply the example to solve similar geological construction in the future.更多还原