关键词: 地震勘探, 爆破振动, 安全控制标准, 强度验算, 胜利油田

Abstract: Standards for safety control of many protective objects in seismic exploration operations have no guides. Therefore, it is important to determine a reasonable vibration safety control standard through analysis and mutual verification of various methods. Firstly, based on the theory of stress wave and damage criterion, the strength of various protective objects in east exploration area of Shengli Oilfield was checked. Then the impact of blasting vibration on the human settlement sites and the seismic protection requirements of various protected objects were analyzed, and the existing specifications were used to verify the previous checking results. Finally, the minimum values calculated by four different checking methods were used as the seismic safety control standard for protection objects. The research results show that the control standard values determined by the strength check calculation are generally less strict than the anti-seismic codes, and the requirements in anti-seismic codes have greater safety margins. The Rayleigh wave propagation velocity is theoretically 0.87 to 0.95 times of the shear wave propagation velocity. For the surface buildings, surface waves should be used for stress analysis, and for buildings inside the propagation medium, body waves should be used for strength checking.

Key words: seismic exploration, blast vibration, safety control standard, strength checking, Shengli Oilfield;