With a quick whistle, a loud noise of "bombardment" struck the valley. Recently, by the Hunan province songbiandian engineering company to undertake the construction of Ximeng - Shandong 1 million volt AC high voltage power transmission line engineering project 6 standard for first base blasting operations, marking the project officially entered the construction phase.

Ximeng - Shandong 1 million volt AC high voltage power transmission project across Inner Mongolia, Hebei, Tianjin, Shandong four provinces (cities, districts), the line length of 2 x 730 km, is one of the 12 transmission channels included in the first batch of national key construction of atmospheric pollution prevention action plan. After the completion of the project, it can meet the demand of electricity in Beijing, Tianjin, Hebei and Shandong, effectively alleviate the environmental pressure, and play an important role in optimizing energy structure, harnessing haze and realizing clean, efficient and sustainable development of energy.

The 6 mark of the line project is located in Chengde, Hebei. It is located in the over zone of the Inner Mongolia plateau and the North China Plain, and the geology is all rock. The section of earthwork excavation difficult, conventional excavation machinery (such as the pick, drill) to complete the rock hole with loose blasting. However, Chengde is located in the northeast of Beijing. It is about 150 kilometers away from the capital. The management and control of pyrotechnics is strict, and the examination and approval process is complex. During the major meetings and important holidays, the approval of pyrotechnics is often stopped, which is a major test for the construction progress of the bid. In order to ensure the smooth operation of blasting and advance the progress of construction in an orderly way, the project department actively coordinates with the local public security departments, performs well the examination and approval process of pyrotechnics, and completes the receiving and using ledgers of pyrotechnics. On the other hand, the safety control of blasting site is strengthened, and the foundation pit adopts the measures of wall protection to prevent the collapse of the pit wall during blasting. At the same time, in each site is equipped with explosion-proof, explosion-proof blasting net bag enough, to prevent flying wounding, be cleared before blasting, and the main intersection in the 200 meters outside the set up warning signs to prevent livestock into blasting warning range, effectively ensure the safety of blasting operation, laid a solid foundation for the orderly construction advance. (Shi Lu Chen Mingwei)