Photo taken on Nov. 29, 2016 shows the blast accident site in a concrete additive plant nearby the Beijing-Shanghai high-speed rail in Jinan City, capital of east China's Shandong Province. The explosion on Tuesday morning disrupted the power supply to a section of the Beijing-Shanghai high-speed rail. The power outage resulted in delayed or canceled trains. Services along the rail were back to normal on Tuesday noon. (Xinhua/Xu Suhui)