In May 2023, Xiaxing Heavy Industry's high-power rotary drilling and pressure grouting rig was deployed at the Jiangshan Mansion construction project in Jiangkou, Guizhou. On this project, the rig's powerful rock penetration capability and efficiency amazed all present.

The project's piles have diameters of 600mm and 800mm and depths of about 15-28 meters. The rig began penetrating rock at about 5 meters and successfully drilled through 10 meters of strongly weathered dolomite and 2 meters of moderately weathered dolomite, completing each pile in only about 1 hour.

Project Overview

The project is the Jiangshan Mansion housing construction project in Jiangkou, Guizhou. According to the geological survey report, the project's strata are complex: from 0 to about 5 meters are plain fill, silty clay, and cobble/boulder, below which are strongly weathered dolomite and moderately weathered dolomite with relatively hard rock. Pile depths are about 15-28 meters.

When selecting construction equipment, the client also considered rotary drilling rigs, which would require at least models above 220. Construction would be slow and costs very high; due to fierce competition, there would be basically no profit in this project, and the client also had very tight schedule requirements for foundation construction. Based on a thorough understanding and recognition of Xiaxing Heavy Industry's high-power rotary drilling and pressure grouting rig, the client ultimately persuaded the general contractor and the client to adopt the high-power rotary drilling and pressure grouting rig for construction. The client said: "Xiaxing Heavy Industry's rotary drilling and pressure grouting rig really made me proud. Construction is not only fast and cost-saving, but rock penetration is also powerful. The client and general contractor are both very satisfied."

How powerful is Xiaxing Heavy Industry's high-power rotary drilling and pressure grouting rig? Let's summarize:

Fast: The power head has high power and strong driving force, resulting in fast drilling speed.

Strong rock penetration: The overall power, structure, and drill bit are reasonably matched, providing strong rock penetration capability. For rock hardness less than 35MPa, it can complete 100-200 meters of piling in 12 hours; in cobble strata, it can complete 300-450 meters of piling in 12 hours.

Energy-saving and environmentally friendly: Electric operation with zero pollution and zero emissions, no mud, clean and tidy construction site, and no spoil transport.

Low investment: Few supporting construction equipment are needed; only one ground pump is required on site. Drilling does not collapse holes, saving casing and concrete.‍

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