![A view of the newly-constructed underground utility tunnel that will service the Beijing 2022 Winter Olympics venue in Yanqing District, Beijing, Jan. 7, 2019. The corridor, which passes through a mountain, including electricity, water supply pipes, and TV and communications cables. (Photo/VCG)](http://www.ecns.cn/hd/2019/01/08/6fa36304503242bca5bfbe9020dca686.jpg)
A view of the newly-constructed underground utility tunnel that will service the Beijing 2022 Winter Olympics venue in Yanqing District, Beijing, Jan. 7, 2019. The corridor, which passes through a mountain, including electricity, water supply pipes, and TV and communications cables. (Photo/VCG)
![A view of the newly-constructed underground utility tunnel that will service the Beijing 2022 Winter Olympics venue in Yanqing District, Beijing, Jan. 7, 2019. The corridor, which passes through a mountain, including electricity, water supply pipes, and TV and communications cables. (Photo/VCG)](http://www.ecns.cn/hd/2019/01/08/8798d89dcb3645a1b127a0d1e46b3217.jpg)
A view of the newly-constructed underground utility tunnel that will service the Beijing 2022 Winter Olympics venue in Yanqing District, Beijing, Jan. 7, 2019. The corridor, which passes through a mountain, including electricity, water supply pipes, and TV and communications cables. (Photo/VCG)
![A view of the newly-constructed underground utility tunnel that will service the Beijing 2022 Winter Olympics venue in Yanqing District, Beijing, Jan. 7, 2019. The corridor, which passes through a mountain, including electricity, water supply pipes, and TV and communications cables. (Photo/VCG)](http://www.ecns.cn/hd/2019/01/08/4386fa0096fb47d49c165d2462aea23b.jpg)
A view of the newly-constructed underground utility tunnel that will service the Beijing 2022 Winter Olympics venue in Yanqing District, Beijing, Jan. 7, 2019. The corridor, which passes through a mountain, including electricity, water supply pipes, and TV and communications cables. (Photo/VCG)