Abstract It has the features of popularity, abruptness and severity for the water burst during tunnel construction,
and so wide attention has been paid to it in the field of tunnelling. On the basis of previous experiences with the relationship between hazards due to water burst and unfavorable geological bodies, six kinds of structures that may cause hazards due to water burst are concluded, i.e. water-filled (mixture of mud and water) karst, strongly compres-so-crushed fractured zone in uncemented water-rich compressive fault, uncemented water-rich extensional fault,underground syncline water storage structure, water-rich bedding staggered (developed joint rock mass) fractured zone and abandoned water-filled mine. Three principles for classifications of hazard structures related to water burst are put forward regarding the structure constitutions, water-insulation rock block types and common engineering treatment measures, and it divides the structure inclined to hazard due to water burst into fully water-filled structure and fracture fissure/void water-bearing structure, and corresponding engineering treatment measures are presented.
Abstract：
It has the features of popularity, abruptness and severity for the water burst during tunnel construction,
and so wide attention has been paid to it in the field of tunnelling. On the basis of previous experiences with the relationship between hazards due to water burst and unfavorable geological bodies, six kinds of structures that may cause hazards due to water burst are concluded, i.e. water-filled (mixture of mud and water) karst, strongly compres-so-crushed fractured zone in uncemented water-rich compressive fault, uncemented water-rich extensional fault,underground syncline water storage structure, water-rich bedding staggered (developed joint rock mass) fractured zone and abandoned water-filled mine. Three principles for classifications of hazard structures related to water burst are put forward regarding the structure constitutions, water-insulation rock block types and common engineering treatment measures, and it divides the structure inclined to hazard due to water burst into fully water-filled structure and fracture fissure/void water-bearing structure, and corresponding engineering treatment measures are presented.
GUO Ru-Jun- 1,
2 He-Fa-Liang- 2
.Geological Structures Inclined to Hazards due to Water Burst in Tunnel construction and Their Classifications[J] MODERN TUNNELLING TECHNOLOGY, 2017,V54(1): 55-60
2017, Vol. 54 