About DDZPH

Welcome to Nanjing Dongda Bi-directional Pile Test Co., Ltd..

Originated from Southeast University (Dongnandaxue, simplified as Dongda), DDZPH has a team of experts in geotechnical engineering, including Professors, PH.D.s, experienced engineers and skilled workers.

As developed by Prof. Gong Weiming, DDZPH’s bi-directional static load testing (also known as O-cell load testing) has been used in pile test since 1996, and it was named Self-balanced method in China(by Prof. Gong).

In China, DDZPH’s bi-directional static load testing 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, etc.

In worldwide, DDZPH’s bi-directional static load testing has been used in construction projects in over 10 countries, such as Malaysia, Singapore, Indonesia, Vietnam, Cambodia, Brunei, Maldives, Angola, Sudan, Mozambique, Zimbabwe, Côte d’Ivoire, etc.