【摘 要】
：
为了解决赵楼煤矿千米深井条件下工作面围岩控制和顶板支护的难题,采用FLAC3D数值模拟、关键层理论计算和现场实测相结合的手段对赵楼煤矿首采区矿压显现规律进行了研究,得到
【机 构】
：
兖煤菏泽能化有限公司赵楼煤矿,天地科技股份有限公司,
论文部分内容阅读
为了解决赵楼煤矿千米深井条件下工作面围岩控制和顶板支护的难题,采用FLAC3D数值模拟、关键层理论计算和现场实测相结合的手段对赵楼煤矿首采区矿压显现规律进行了研究,得到了该条件下关键层层位、工作面初次来压和周期来压步距等参数,对工作面安全生产起到了一定的指导作用。
In order to solve the problem of surrounding rock control and roof support in the working face under the depth of 1000 meters in Zhaolou Coal Mine, the strata pressure pattern of the first mining area in Zhaolou Coal Mine was studied by means of FLAC3D numerical simulation, key layer theory calculation and field measurement. The parameters of the key layers, the initial pressure on the working face and the pressure step on the working face were obtained under this condition, which played a guiding role in the work safety of the working face.
其他文献
How to build a secure architecture for network function virtualization (NFV) is an important issue. Trusted computing has the abil-ity to provide security for N
Benefited from the design of separating control plane and data plane, software defined networking (SDN) is widely conced and applied. Its quick response capabil
本文结合英语教学的特点,从三方面简要探讨了在新课程理念下如何发挥学生主体作用,营造互动教学氛围,使英语课堂教学效果更好.
Antenna mechanical pose measurement has always been a crucial issue for radio frequency (RF) engineers, owning to the need for mechanical pose adjustment to sat
航拍是采用从高空往地面拍摄的一种俯拍技法,能够清晰地表现地理形态和大地的纹理,鳞次栉比的建筑群.宏大宽广的气势.rn对摄影爱好者来讲,租用直升机或者小型飞行器进行航拍,
随着人口的不断增长及社会经济的不断发展，社会对水资源的需求量正在不断加大，水资源的供需矛盾也在不断加剧。天津作为一个水资源稀缺的城市，破解水资源危机，提高水资源利用效率
Narrowband Internet of Things(NB-IoT)has been proposed to support deep coverage(in building)and extended geographic coverage of IoT.In this paper,a power control scheme for maximizing energy efficienc
摘要：认为密码学中的同态加密技术可以为分布式计算环境的用户隐私保护提供强有力的技术支撑。同态加密方案被分成3种类型：部分同态加密、浅同态加密和全同态加密。同态加密方案在分布式计算环境下的密文数据计算方面有着重要的应用，包括：安全云计算与委托计算、远程文件存储、密文检索等。指出目前全同态加密方案的构造还处于理论阶段，尚不能用于实际的密态数据计算问题，如何设计基于代数系统的（自然）全同态加密方案依然是