In July 2023, SANY's innovative drilling technique, the SR435W-SCM method, made its inaugural appearance in Singapore, a major stride in the country's public housing initiatives.
Singapore, located at the southern tip of the Malay Peninsula, has a land area of just 733.1 square kilometers and a resident population of 4.6 million. The city-state is grappling with extreme population density, leading to extensive land reclamation projects. However, the poor bearing capacity of the seabed sediment often necessitates geotechnical improvements at the onset of construction projects. This involves soil stabilization techniques to control soil settlement and increase load-bearing capacities.
Cement-mixing piles have become an effective solution for treating soft soil foundations. This process involves specialized deep mixing machinery that blends the soil with cement, leveraging a range of physical and chemical reactions to solidify the soil. Known as Single Column Mixing (SCM), this approach is becoming an integral part of construction projects in Singapore.
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Project Overview
The Thiam Siew project, located near Thiam Siew Avenue in Singapore, involves construction depths of 21-26 meters and a pile diameter of 2.4 meters. A total of 1,200 piles are planned for this site. Once the soil stratum is improved using the SCM method, rotary drilling rigs are employed for further construction.
Key Features
Based on the SR435W rotary drilling rig, the custom-developed SCM method features a high-speed powerhead, octagonal connection for large torque, and multi-layer sealed rotary joints to prevent grout leakage. With intelligent controls, the rig provides for automatic forward and reverse rotation of the powerhead and precise hoisting, making operations easier and more efficient.
Product Highlights
-High Speed: Powerhead speeds are adjustable between 0-40 rpm.
-Stable Hoisting: Precise speed control with 0.1m/min accuracy.
-Strong Sealing: Multi-layer fabric sealing on rotary joints and 4-layer O-ring seals on the drilling tool connections.
-Intelligent Operations: Automated cement mixing process, reducing operator fatigue.
-Quality Construction: The intelligent control system allows consistent drilling speeds and powerhead rotation, resulting in more even and thorough mixing.
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The SR435W-SCM method's operational capabilities and equipment stability have won accolades from clients. This recognition attests to SANY's continued investment in R&D innovation and its philosophy of self-improvement. The company's rotary drilling rigs have been exported to 56 countries worldwide, with countless success stories showcasing their efficient and stable performance in various corners of the globe.
By bringing this technology to Singapore, SANY is addressing the unique construction challenges in a densely populated and land-scarce environment, further solidifying its position as a global construction equipment market leader.
September 21, 2023
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September 21, 2023
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