41 NOVEMBER 2023 WorldWide Drilling Resource® See us at Groundwater Week ~ Booth 309 Benefits of Low-Pressure DTH Hammers Adapted from Information by TerraRoc Urban redevelopment projects present unique challenges, and drilling in these sensitive areas can be complicated. One of the key challenges faced by drill operators is the need to minimize disturbances to the surrounding environment while drilling. This is where low-pressure down-the-hole (DTH) hammers come in handy. One of the main benefits of using low-pressure DTH hammers is the ability to minimize noise and vibration, which is important to prevent disturbing residents, buildings, and infrastructure. These hammers allow drill operators to work in areas where conventional drilling techniques may not be suitable. This makes low-pressure DTH hammers an excellent option for drilling in densely populated locations or areas with sensitive infrastructure, such as hospitals, schools, or historic buildings. Another benefit is the ability to drill through a wide range of soil types. Whether it is hard rock or soft soil, low-pressure DTH hammers provide efficient and effective drilling without causing significant ground disturbance. This enables operators to use a single drilling method for all types of soil conditions, reducing the need to switch between drilling methods and minimizing the time required for drilling. Low-pressure DTH hammers have gained in popularity in recent years because they are gentler on the ring bit sets compared to high-pressure hammers. This is because low-pressure hammers operate at a lower frequency, producing less impact energy, resulting in reduced wear and tear on the ring bit sets. Being more efficient and requiring less air consumption makes them cost-effective and environmentally friendly. Furthermore, low-pressure DTH hammers can be used to drill deeper and wider holes, making them useful in foundation and pile construction. This is because they provide better penetration rates, ensuring drilling is completed faster and more efficiently. This can be especially important in urban areas where construction schedules are tight, and delays can be costly. DTH hammers are an essential tool for drilling large-diameter boreholes in hard rock formations. When choosing a DTH hammer for urban areas, consider using one designed specifically for low-pressure operations. Terranox DTH hammers are designed for optimum performance in low-pressure operations. ENV
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