Experimental study on sliding shaft lining mechanical mechanisms under ground subsidence conditions

来源 :煤炭学报(英文版) | 被引量 : 0次 | 上传用户:mzhao79
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Aimed at more than 60 shaft linings damaged in Huaibei, Datun, Xuzhou and Yanzhou mine areas, this paper presents a new type of sliding shaft lining with asphalt blocks sliding layer. By model test, it is obtained that the deformation characteristics and the mechanical mechanisms of the sliding shaft lining under the condition of ground subsidence. The research results provide a testing basis for the sliding shaft lining design. By now, this kind of sliding shaft lining had been applied in 9 shafts in China and Bangladesh.
其他文献
Selected non-burned method and took fly-ash as main material, together with lime and gypsum, to inspire the activity of volcanic ash, took a kind of poly-organics to replace the clay as binder, and then made small balls with machine, wrapped slurry twice
The concentrations of two fresh Chinese coals (lignitie and fatty coal ) from different geological origin and the corresponding fly and bottom ashes were determined using inductively coupled plasma mass spectrometry(ICP-MS). The ranges and means of concen
Utilized degradable data of coal-filled films from the accelerated UV chamber ageing degradation experiments, and on the basis of control factors\' analysis, presented a predicting model on degradable properties of this film in photo-degradation accordi
In this paper, on the basis of the analysis of the current situation of the mine floor flood and the cnsultation system study, the overall design and structure, specially, the mechanism of many kinds of method for making a strategic decision and reasoning
Jurassic weak & non-stick coal in Hengshan of North Shaanxi Province waspretreated by the nitric acid. Then, it was biodegraded by Phanerochaete chrysosporium.The biodegradation role of the white-rot fungus for coal is extremely significant. Orthogo-nal t
In order to explore the propagation law of gas explosion in U type laneways, the propagation law of flame and shock wave in U type duct were experimentally and theoretically investigated. It is shown that the shock wave takes on the complicated stress sta
The energy caused by the dynamic impact in mining engineering forth release and spread by the way of seismic waves, monitoring is an effective way for forecasting mine dynamical disasters, such as rockburst and coal and gas outburst. Three-dimensional dyn
A large model of the screen was mounted in the laboratory for studying its modal performance. The model is suspended with steel ropes. Modal test was carried out with artificially exciting by 500 g impacting hammer and 100 kg exciting force shaker respect
According to the law of conservation in the state of turbulent flow, the differential equation describing the airflow temperature distribution in drifting tunnel is derived, By theoretical analysis and field measurement of the airflow and thermal process
It is necessary to set up a new mathematical model of steam coal blending instead of the old model. Indexes such as moisture content, ash content, volatile matter, sulfur content and heating value in the new mathematical model have linear relation. The ne