Another initiative, XCMG Basic Drilling Machine for DTH Drilling Improves Construction Efficiency by Over 8 Times

Recently, XCMG XR150DV pneumatic DTH Drilling and Rotary Drilling Rig was constructed on the Qinglian Railway Project (Qingdao to Lianyungang Line). It exhibited different brilliance. It can drill more than 4m an hour, and the construction efficiency is increased by more than 8 times. The successful application of this construction method has created a precedent for the hard rock construction of the rotary drilling rig in the Mainland and the pneumatic DTH hammer method.

徐工XR150DV气动潜孔锤钻机在青连铁路施工
XCMG XR150DV DTH Drilling Machine for Construction of Qinglian Railway

XCMG XR150DV maximum drilling diameter of 1.2m, the maximum drilling depth of 46m, the use of retractable crawler chassis, single main rope winch structure, dedicated power head damping mechanism, adjustable vise clamping structure, automatic telescopic Dust devices, four-fold increase rate of goose head lifting mechanism, etc. ensure the safety, environmental protection, and efficient construction of the equipment.

徐工XR150DV在青连铁路项目施工中的成桩情况
XCMG XR150DV Pile Formation in Construction of Qinglian Railway Project

The Qinglian Railway project has 1m pile diameter, 21m pile depth, and 2m below the surface is an andesite with a very high hardness. It uses XCMG XR150DV pneumatic DTH hammer drill rig to combine the rotary drilling rig with the pneumatic DTH hammer method and uses the DTH hammer. The principle of impact crushing crushes hard rock, conquering the industrial difficulties of slow construction efficiency and rapid wear of drilling tools in hard rock formations.

徐工XR220DIV气动潜孔锤旋挖钻机在香港维多利亚港施工
XCMG XR220DIV Pneumatic DTH Hammer Rotary Drilling Rig Construction in Victoria Harbour, Hong Kong

徐工XR220DIV气动潜孔锤旋挖钻机在香港进行房建桩施工
XCMG XR220DIV Pneumatic Drilling Rotary Drilling Rig Performs Housing Piling Construction in Hong Kong

As early as 2015, Xugong Pneumatic DTH Drilling Rig XR220DIV and XR180DIV entered Hong Kong in batches and was successively used in pile foundation construction projects such as housing construction, subways and bridges. At the time of construction of the Hong Kong MTR sand line, the Victoria Harbour tender section was the core project of the entire subway line. The tender section was hard and complex. The designed pile diameter was 813mm and the rock was 20m. The base rock hardness was very high. The average drilling depth per hour of hammer drilling and drilling rigs is 6 to 8 meters, which greatly improves the construction efficiency. Xugong's construction of rotary drilling rigs for pneumatic DTH hammers ended the history of the construction of rotary drilling rigs in Hong Kong, making Xugong the only one in the Mainland at the time. The domestic rotary drilling rig brand entered the high-end market in Hong Kong. (This article comes from the XCMG base)

Related Developments: XCMG Basics Drilling Rig Construction

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