Time optimization of computer drilling jumbo under tunneling construction
The computer drilling jumbo has a bright application in the construction of the national defense which has used the NATM method in construction widely,not only improve the construction quality,but also speed up the construction schedule and shorten the time by applying the scientific organization and arrangement. Aiming at the computer drilling jumbo under the I,II,III grade horizontal surrounding rocks,IV and V grade horizontal surrounding rocks construction in the national defense projects,this paper applied the network planning technology to optimize the procedure of the construction and the time schedule,drawn the activity on arrow network diagram and the form of procedure relationship which used the restrain module method for all above arrangements for construction,got the crucial routes of arrangements for construction. According to the actual construction,compressed the duration of the crucial works which have the most influence on the time of the construction,finally optimized the time for computer drilling jumbo in the tunneling construction.