Welcome to Nanjing DongnanDaxue Self-Balance (DDSB) Pile Test Co., Ltd..
Originated from Southeast University (DongnanDaxue), DDSB has a team of experts in geotechnical engineering, including Professors, PH.D.s, experienced engineers and skilled workers.
As developed by Prof. Gong Weiming, DDSB’s self-balance static load test (also known as O-cell load test or bi-directional static load test) has been used in pile testing since 1996.
In China, DDSB’s self-balance static load test has been used in a large number of major infrastructure projects, such as high-rise buildings, long span bridges, high-speed rails, subways, harbors and wind turbines, et al.
In worldwide, DDSB’s self-balance static load test has been used in construction projects in over 10 countries, such as Malaysia, Singapore, Indonesia, Vietnam, Cambodia, Brunei, Maldives, Angola, Sudan, Mozambique, et al.