vip Editor in Chief:Professor Xiao-Ping Zhang, University of Birmingham The potential for renewable energy to make contributions to mitigating the impact of climate change is expected to increase significantly in th...vip Editor in Chief:Professor Xiao-Ping Zhang, University of Birmingham The potential for renewable energy to make contributions to mitigating the impact of climate change is expected to increase significantly in the longer term. Renewable energy generation technologies including onshore wind, offshore wind, wave,tidal, marine current, and ocean thermal energy generation as well as PV power generation, which are considered展开更多
Illustration All the data in this catalog are chosen from the Preliminary Seismological Report of ChineseSeismic Stations (abbreviated to Monthly Report).The catalog includes the events of M≥4.7 inand near China and ...Illustration All the data in this catalog are chosen from the Preliminary Seismological Report of ChineseSeismic Stations (abbreviated to Monthly Report).The catalog includes the events of M≥4.7 inand near China and M≥6 all over the world.The Monthly Report is monthly complied by theNinth Section of Institute of Geophysics,CSB.展开更多
The basin covers an area of 48000 square kilometres with predicted oil and gas reserves of 1.6 billion tons and 380 billion cubic metres respectively.The exploration and development operations have been better than ex...The basin covers an area of 48000 square kilometres with predicted oil and gas reserves of 1.6 billion tons and 380 billion cubic metres respectively.The exploration and development operations have been better than expected in the past three years with the discovery of 11 oilfields and the esta blishment of a crude production capacity of 1.25 million tons.While conducting further exploration work in this basin,CNPC has currently discovered other four new oil and gas-bearing belts in the area.This indicates a continuous increase of reserves and production in the next few years.展开更多
通过三维离散元分析软件3DEC(3 Dimensional Distinct Element Code),针对卸压孔在不同孔径下的围岩变形情况,较为详细地分析了钻孔卸压在深部巷道中的效果。模拟结果表明,对巷道两帮钻孔卸压以后,应力集中区域由两帮转移到了围岩深部,...通过三维离散元分析软件3DEC(3 Dimensional Distinct Element Code),针对卸压孔在不同孔径下的围岩变形情况,较为详细地分析了钻孔卸压在深部巷道中的效果。模拟结果表明,对巷道两帮钻孔卸压以后,应力集中区域由两帮转移到了围岩深部,且集中在了卸压孔的末端,对深部巷道起到了很好的保护作用,为深部高应力巷道卸压支护提供了依据。展开更多
文摘vip Editor in Chief:Professor Xiao-Ping Zhang, University of Birmingham The potential for renewable energy to make contributions to mitigating the impact of climate change is expected to increase significantly in the longer term. Renewable energy generation technologies including onshore wind, offshore wind, wave,tidal, marine current, and ocean thermal energy generation as well as PV power generation, which are considered
文摘Illustration All the data in this catalog are chosen from the Preliminary Seismological Report of ChineseSeismic Stations (abbreviated to Monthly Report).The catalog includes the events of M≥4.7 inand near China and M≥6 all over the world.The Monthly Report is monthly complied by theNinth Section of Institute of Geophysics,CSB.
文摘The basin covers an area of 48000 square kilometres with predicted oil and gas reserves of 1.6 billion tons and 380 billion cubic metres respectively.The exploration and development operations have been better than expected in the past three years with the discovery of 11 oilfields and the esta blishment of a crude production capacity of 1.25 million tons.While conducting further exploration work in this basin,CNPC has currently discovered other four new oil and gas-bearing belts in the area.This indicates a continuous increase of reserves and production in the next few years.
文摘通过三维离散元分析软件3DEC(3 Dimensional Distinct Element Code),针对卸压孔在不同孔径下的围岩变形情况,较为详细地分析了钻孔卸压在深部巷道中的效果。模拟结果表明,对巷道两帮钻孔卸压以后,应力集中区域由两帮转移到了围岩深部,且集中在了卸压孔的末端,对深部巷道起到了很好的保护作用,为深部高应力巷道卸压支护提供了依据。
