Abstract It is often for the extra-long deep-buried road tunnel to adopt sectional longitudinal ventilation with shaft. As a special type of structure, shaft is characterized by challenging construction, much equipments investment and high risks of safety management. Based on construction of a large and deep shaft of the extra-long Micangshan tunnel on the Batao expressway, it discussed the construction technique, equipment matching and management of large and deep shaft in an environment protection area. Short section advancing and single-layer cast concrete lining were adopted in a ventilation shaft of the extra-long Micangshan tunnel, and the construction equipments are mainly head frame, hoisting equipment, drilling equipment and mucking equipment.
Abstract：
It is often for the extra-long deep-buried road tunnel to adopt sectional longitudinal ventilation with shaft. As a special type of structure, shaft is characterized by challenging construction, much equipments investment and high risks of safety management. Based on construction of a large and deep shaft of the extra-long Micangshan tunnel on the Batao expressway, it discussed the construction technique, equipment matching and management of large and deep shaft in an environment protection area. Short section advancing and single-layer cast concrete lining were adopted in a ventilation shaft of the extra-long Micangshan tunnel, and the construction equipments are mainly head frame, hoisting equipment, drilling equipment and mucking equipment.
HAN Yuxuan1 LENG Xiqiao2,
3 YAN Jinxiu4 ZHANG Rui5
.Construction Technology for the Shaft of Extra-long Micangshan Tunnel[J] MODERN TUNNELLING TECHNOLOGY, 2019,V56(3): 133-138
2019, Vol. 56 