Drilling Methods for Deep Foundation: Liebherr Offers Advanced Solutions
The process of constructing large buildings, bridges, and other structures often involves the need to excavate deep within the ground to create a stable foundation. Drilling methods for deep foundation work have evolved over the years, with technology driving efficiency and safety improvements to the process.
One such company that has been at the forefront of this evolution is Liebherr, a leading supplier of construction equipment across the globe. With roots dating back to 1949, Liebherr has gained a reputation for cutting-edge drilling solutions that deliver efficiency and safety in equal measure.
Deep foundation drilling methods that are part of the Liebherr product lineup include Kelly drilling, continuous flight auger drilling (CFA), full displacement drilling, double rotary drilling, and more. These techniques cover a wide range of applications, from smaller diameter holes for pile driving to larger boreholes for geothermic drilling and mineral exploration.
Kelly Drilling
Kelly drilling is a traditional method for deep foundation work that Liebherr executes with great precision. It involves the use of a telescopic drill stem, known as a “Kelly bar” or “drilling string,” that is driven into the soil by a rotary rig. Kelly drilling is extremely versatile, well suited to both hard and soft soil types.
Continuous Flight Auger Drilling (CFA)
CFA drilling is another option for deep foundation work, executed by a Liebherr drilling rig with auger and pump. Rather than using a drill stem, a hollow auger is driven into the soil, injecting drilling fluid in the process. The resulting soil/rock mix is then retained on the auger helix as it is withdrawn from the borehole. This can create an efficient, low impact method for deep foundation work that minimizes the risk of ground subsidence.
Full Displacement Drilling
Full Displacement Drilling (FDD) is a highly precise drilling technique that uses a fully enclosed drilling tool to displace soil or rock as the tool advances. The method is ideal for constructing grouted piles, where accurate borehole diameter is highly important for structural strength.
Double Rotary Drilling
Double rotary drilling is a versatile method for deep foundation work that is well suited to hard ground conditions. It utilizes two concentric drill stems, one that rotates and the other that remains stationary. This allows for greater control over the borehole’s geometry, producing highly uniform hole diameters that can support strong structural foundations.
At the heart of Liebherr’s drilling equipment offering is an array of highly advanced drilling rigs. One such example is the LB 36, which is capable of drilling boreholes up to 3 meters in diameter and 118 meters deep. The LB 36 is a highly versatile rig with advanced features such as a modern CAN bus system, environmentally friendly hydraulic oil for the drive and rotary drives, and state-of-the-art automation capabilities.
In addition to its high-quality equipment offerings, Liebherr has established a widespread service network that supports customers in need of technical support or parts. This commitment to service after the sale is a core part of the company’s mission of providing total drilling solutions.
Liebherr is widely trusted by construction companies worldwide for their advanced drilling solutions. With deep foundation work remaining a critical aspect of modern construction projects, the need for cutting-edge drilling equipment and techniques is greater than ever. Liebherr provides reliable, efficient options for a wide range of deep foundation drilling requirements, backed by an unparalleled commitment to quality and customer support.
About Wenzhou Maiouke Electromechanical Equipment Co.,Ltd.
Wenzhou Maiouke Electromechanical Equipment Co.,Ltd. is a supplier of metalworking equipment with nearly two decades of experience in the industry. The company’s product lineup includes a wide range of metalworking machinery, including conventional horizontal lathes, CNC flat and slant bed lathes, mill-turning centers, VTL, boring machines, precision machining centers, and more. With deep expertise in metalworking technology, Maiouke has become a trusted partner for customers in need of reliable machinery for a range of applications.