Abstract：
The 13.654km Xishan super-long tunnel on the Taiyuan-Gujiao expressway is the longest highway tunnel under construction in China. During construction of the intersection joint of the inclined shaft with the main tunnel, bench excavation was adopted with the rectangular-section vertical adit directly entering into the main tunnel. By optimizing the design parameters, strengthening support, and using shock-absorbing blasting technology, the construction of the inclined shaft intersection joint with the main tunnel was implemented safely and efficiently.
WANG Xin
.Construction of the Intersection Joint of the Xishan Super-long Tunnel with Inclined Shaft[J] MODERN TUNNELLING TECHNOLOGY, 2011,V48(4): 122-125
2011, Vol. 48 