... In recent years, the underground space has overcrowded with the overcrowding of urban areas. Therefore, the adjacent construction of underground structures is increasing. In such a construction, an influence of the construction of a new structure on the existing structure has to be considered...

... Abstract The study introduces two optimization design cases for construction and mining equipment. One is the optimization of button design on a drill bit face of rock drill machine; the other is the design study of pick cutter arrangement on the cutting head of a roadheader. Rock drilling...

... in geological formations, it is necessary to assess the feasibility, safety, appropriateness, and stability of the disposal concept at an underground research laboratory (URL) constructed in deep geological formation as the desired host rock. The Planning Committee for the Korean Nuclear Energy R&D Programme...

... Abstract Under the conditions of unfavorable topography and geology, the construction of the mountain tunnel may pose a significant risk of tunnel collapse and large deformation accidents, which will cause casualties and great economic losses. Then how to predict the occurrence of tunnel...

...On-line prediction model for rate of penetration (ROP) with cumulating field data in real time Melvin B. Diaz a , Kwang Yeom Kim b* , Hyu Soung Shin b a University of Science and Technology, Korea b Korea Institute of Civil Engineering and Construction Technology, Korea * [email protected] Abstract...

... ABSTRACT: Taking the project in China as background, established a physical model experimental platform to simulate the cavity construction using the similar theory. The influence of interlayer to the cavity construction was studied. It was found: when the interlayer exists, the flow field...

... and utilization of city underground space resources has become an important direction of social sustainable development. Improving for construction speed and having small influence on the environment, shield construction, as a special machine of tunnel construction, is widely used in the city underground tunnel...

... ABSTRACT: Blast tunneling and shield tunneling methods are often employed with small intervals when the auxiliary lines approaching to a subway station. The tunnel cross sections formed by blasting are often extensive and various. When shield tunnel is being constructed, the impact of the two...

... Engineering hole network parameter application rock mass Reservoir Characterization optimization structural surface large-sized block geological condition fracture construction Upstream Oil & Gas upper part electricity consumption initiation direction minimum resistance line...

... Deformation monitoring and security-stability analysis for tailings pond starter dam with sectional construction H. Wang & H.T. Ma China Academy of Safety Science and Technology, Beijing, China YX.Wu University of Science and Technology Beijing, Beijing, China ABSTRACT: The starter dam of a tailings pond...

... construction process, case analyses, etc. The results show that the isolation grouting prevention and control selected as one isolation grouting unit with 20,000 square meters is with lower cost, and can effectively avoid or decrease the mine earthquake caused by suddenly collapse of large scale goafs, control...

... Construction and Security, Collaborative Innovation Center, Qingdao, Shandong, China ABSTRACT: Risk factors of buildings safety, taking a hotel as an example, induced by line 3 of Qingdao subway excavation are summarized based on detailed exploration and investigation of rock and soil mass properties...

... and cable strand, diameter error of cable strand, strength and hardness of cable strand, limit distance and anchorage quality are analyzed. By site investigation, quality of cable support materials and construction quality were known. Measures for solution of anchorage failure were put forward, including...