Papers by Author: De Qing Gan

Abstract: According to the unceasing development of geotechnical survey technology and the demand of land resources survey management, Geographic Information System technology is proposed to establish spatial database to provide survey information for land resources surveyors and designers. At the same time, on the basis of geotechnique survey current status and integrated system, discuss the application analysis of Geographic Information System on geotechnique survey.

Abstract: The dynamic effect analysis of transient unloading is one of main points to the mechanism of rock fragmentation by blasting. The paper introduces the details of rhe effect of instantaneous unloading to rock fragmentation by blasting. Use the dynamic finite element method to calculate the process of transient unloading of excavation; get some conclusions about transient unloading.

Abstract: The text analyzed mining method of Macheng Iron Ore. It put forward two projects about afterwards filling mining methods for large and thick inclined ore bodies: phase drilling, ore drawing as well as sublevel drilling and phase ore drawing, according to the thickness of inclined mine. It is greatly propitious to the mine building.

Abstract: The blasting vibration effect is one of the most primary dangerous during blasting excavation process. When ground shake caused by blasting reach to the certain strength, it will have different degree of damage on ground, underground building and project structures etc and affect production stability and security. This article focus on practical project problems during mining and blasting processes of Sijiaying iron mine, the blasting vibration system and scheme are determined through field observation, the blasting vibration regular are experienced study and analysis and they will provide significant guidance for mine safety blasting.

Abstract: Shirengou iron mine of Hebei iron and steel group Co., LTD owns annual production capacity of two million tons, which is one of the domestic major metal mines. The study of underground safety detection and monitoring system aims at realizing of mining safety and efficiency. This system prevents mine safety accidents effectively and improves mining production efficiently. The establishment of detection and monitoring system plays the significant reference meaning for promoting monitor of domestic mine pressure disaster and safe management level.

Abstract: Through OLAP technology study and solve the data issues during the real-time integrated of cost information process. Using OLAP technology does classified and sequenced analyses on mines production cost multi-dimensionally and multi-angle computationally. It is carried the deep study that the application of OLAP theory and technology in underground metal mines cost analysis field, and meanwhile the relative OLAP modeling is put forward.

Abstract: During surface-underground combined mining, the method to control the ground air leakage is adopted by the capping layer using the fragmented rocks and the discarded tailings. In order to study the air leakage characteristic with the capping, the porosity of the rock particles of seven sizes and the air leakage characteristics of the capping were studied and the relationship between the air leakage coefficient and amount of air leakage with the capping height were found basing on the laboratory analogue simulation tests. It can provide the theoretical basis for determining the capping height of iron mine.

Abstract: According to the occurrence of ore, mining use different cement filling mining, due to different filling body, in a different role in the maintenance of stope stability, so filling body required different strength. By regression analysis of filling body strength with sand ratio, slurry concentration and fine sand content, to get different body strength of different filling mining, and also can be the primary and secondary and the impact degree of various factors which impact the strength of filling body.

Abstract: The paper analyzed major factors that influence the stability of open-pit slope and established the GM (1, N) model based on the program of Xingshan strip mine, which provided an effective method for evaluating the slope stability.

Abstract: Based on applications in different open-pit mine and analysis of economic benefits, the paper describes the mixed emulsion explosive productive technology and the mechanism of air-space blasting, which has great value in reducing the production costs and bringing huge blasting economic benefits.