The collapse occurred on March 28 following the 7.7-magnitude earthquake that struck Myanmar.
"When we were trying to rescue survivors, it was like a sprint. Now, the operation must continue steadily, like a marathon," he said, according to The Nation.
The debris field has been divided into Zones A, B, C, and D to coordinate search efforts more effectively. Chadchart noted that the rescue operation had entered its 10th day, with teams now relying more on heavy machinery to remove large concrete slabs.
Heavy equipment has been deployed via the front entrance and through the State Railway land adjacent to the site, allowing teams to reach the top of the rubble and begin gradual removal of large debris.
Earlier, the Thai authorities said that death toll from the earthquake rose to 24.
Among the victims, 17 people were confirmed dead in the collapse of the high-rise building under construction in Bangkok while 77 others remain missing.