In recent years, the TRD construction method has developed rapidly in China. By the end of 2021, the total number of TRD projects in the country will exceed 500, and the total TRD construction volume will reach nearly 6 million cubic meters. Compared with the traditional construction method, the TRD construction method has many advantages: large construction depth, wide adaptability to stratum, good wall quality, high vertical accuracy, saving construction materials, and high equipment safety. It has been widely used in various foundation pit water-stop curtains , Reinforcement of ground connecting wall groove wall, profiled steel cement soil mixing wall, landfill and other pollution isolation and water conservancy anti-seepage walls and other fields.
Guangdong Province is a developed coastal province in my country. The traditional SMW three-axis mixing pile construction technology has been quite mature since it was introduced into Guangdong by Shanghai Guangda Foundation Engineering Co., Ltd. 10 years ago. However, the TRD construction method is still in its infancy. The TRD construction method was applied to the integrated construction of the Shantou high-speed railway station hub in Guangdong Province, with a construction volume of nearly 30,000 cubic meters, marking the breakthrough development of the TRD construction technology in southern China.