Analysis and Prevention and Control of Safety Risk of Drilling and Blasting Construction through Submarine Fault Fracture Zone
Taking the second Jiaozhou Bay submarine tunnel project as the background,the safety risk analysis of tunneling through the submarine fault fracture zone by drilling and blasting method is carried out.Based on the most prominent risk factors of construction such as geological investigation,advance geological prediction,water gushing and mud gushing in fault fracture zone,harmful effect of blasting,the systematic analysis is carried out,and the risk control measures such as comprehensive geological detection technology,comprehensive advance geological prediction scheme using service tunnel,advance curtain grouting and advance small pipe technology,loose blasting,smooth blasting and control blasting are put forward.
submarine tunnelprecise detectiondrilling and blasting methodfault fracture zonewater gushingblasting effectventilationadvance groutingrisk control
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