China Railway 16th Bureau Group Co

Beijing, China

China Railway 16th Bureau Group Co

Beijing, China

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Huang C.-F.,University of Science and Technology Beijing | Huang C.-F.,China Railway 16th Bureau Group Co. | Tian S.-G.,University of Science and Technology Beijing | Wu S.-C.,University of Science and Technology Beijing | Gao Y.-T.,University of Science and Technology Beijing
Meitan Xuebao/Journal of the China Coal Society | Year: 2016

In order to realize the governance utilization of the mined-out and subsidence area, the stability of the mine goaf roof is studied and analyzed. Considering the nonlinear instability failure process of the gob roof rock mass, respectively build the gob roof stability analysis models from structural mechanics and rock mass constitutive relation, the two points of view. First the gob roof rock beam structure is simplified as a mechanical three hinged arch model, then using mechanics analysis, obtains the total potential energy of its mechanical structure system, using the catastrophe theory, establishes the cusp catastrophe model of the instability of the gob roof rock beam; then builds the general model of chimney caving of the gob roof rock based on the theory of limit equilibrium analysis, considering the wide application of practical engineering, and then establishes the rectangular stope roof chimney caving limit equilibrium analysis model based on the generalized H-B failure criteria. Finally the two models are analyzed and validated by different engineering examples, and the calculation results are consistent with the engineering actual situation, it shows that the two models are suitable for analysis of roof stability of mined-out area, and it provides a new research approach for stability analysis of goafs. © 2016, Editorial Office of Journal of China Coal Society. All right reserved.


Liu Q.,China Railway 16th Bureau Group Co.
Metallurgical and Mining Industry | Year: 2015

Aiming at the problem of low accuracy and low efficiency in the traditional way of mobile data collection, as well as the existing problem that the mobile data acquisition systems being specific to spatial position measurement and lacking of the universality characters, this paper proposes and develops a data acquisition system based on GPRS and mobile GIS technology, and applies the GIS, GPS and GPRS technologies to the mobile data collection operations. Combined with AicGISMobile9.3, the paper realizes the analysis of the system requirements and the functions proposed in the system design. Besides, this paper introduces the system applied in wetland planning survey. © Metallurgical and Mining Industry, 2015.


Liu Q.,China Railway 16th Bureau Group Co.
Applied Mechanics and Materials | Year: 2013

The reliability of electromechanical system is one of the key problems to restrict the rapid development of electromechanical system. Based on traditional reliability analysis methods, the degradation failure modes of electromechanical system are investigated, the reliability modeling analysis method based on competing mode of hard and soft failure is presented. The relations between reliability, failure rate, MTBF and failure threshold are analyzed by this method. The results can help to optimize electromechanical system design. © (2013) Trans Tech Publications, Switzerland.


Pan X.-C.,Shenzhen South Branch of Northwest Research Institute Co. of C. R. E. C | Li J.,China Railway 16th Bureau Group Co. | Xiong J.,China Academy of Railway Sciences
Journal of Railway Engineering Society | Year: 2013

Research purposes: There are three methods for comparing and evaluating the increase of the shear strength of soft soil foundation: the effective stress method, effective consolidation pressure method and specification method. When describing the increase of the shear strength of the unit soil on one spot, It is necessary to indicate the stress state of the unit soil and research the increase of the shear strength of the soil surface. Research conclusions: (1) For the unit soil of the dam foundation's middle axle or the toe, when the effective stress method is used, the increase of the shear strength of the large main stress acting face is bigger than that of the shearing damaged face, and the increase of the shear strength obtained by using the specification method is between the above values. (2) For soil-stone dam built on the soft soil foundation, the increase of the unit soil of the dam foundation's middle axle becomes less with the increase of the depth after its consolidating for a period of time while in the unit soil of the toe, this kind of becoming less trend is not obvious. (3) This research result is available for researching the increasing regulation of the shear strength in the drainage consolidation.


Li J.P.,Southwest Petroleum University | Li X.,Southwest Petroleum University | Zhu D.Q.,China Railway 16th Bureau Group CO.
Applied Mechanics and Materials | Year: 2014

The plane finite element analysis is mostly adopted in soft rock tunnel excavation instead of three-dimensional nonlinear finite element analysis at present, but almost every underground engineering is a spatial nonlinear problem which, in many cases, cannot be simplified into a plane problem. This paper presents a three-dimensional elastic-plastic finite element analysis of incremental variable plastic in soft rock tunnel excavation, through analyzing the tunnel excavation and support, and combining the incremental variable plastic stiffness method into three-dimensional elastic-plastic model in light of the advantage of increment variable stiffness method and the incremental additional load method. Simulation results show that, the three-dimensional elastic-plastic finite element analysis model presented in this paper changes little final deformation under different load release coefficients, together with small support stress. © (2014) Trans Tech Publications, Switzerland.


Huang C.,Chinese Academy of Sciences | Huang C.,China Railway 16th Bureau Group Co | Xia Y.,China Railway 16th Bureau Group Co
ICTE 2011 - Proceedings of the 3rd International Conference on Transportation Engineering | Year: 2011

The development of urban rail transit is a cause which should need huge investment. The current Chinese urban rail transit infrastructure is mainly manifested as an act of government investment. If inappropriately, it will not only cause a huge waste of money and a heavy financial burden upon the government, but also can be more likely to lead to a serious imbalance of the allocation of resources, so as to undermine the coordinated development of economic sectors, block social progress. From the perspective of sustainable urban development, the problems between the current urban rail transit and regional economic development was analyzed so as to reveal the relationship between the urban rail transit and regional economic development. The results show that the correct understanding of the economic construction of urban rail transit properties, promote and coordinate the relationship between the urban rail transit planning and economic development, can make China's urban rail transit construction and regional economic coordinated development realize. © 2011 ASCE.


Huang C.-F.,Chinese Academy of Sciences | Huang C.-F.,China Railway 16th Bureau Group Co | Xia Y.,China Railway 16th Bureau Group Co
Procedia Engineering | Year: 2011

Urban rail transit becomes the important mean for developing urban economy, improving industrial structure and raising citizens' living standard for its great social and economic effects. With the growth of economy, its role of boosting domestic demand and driving economic growth has been more obvious. And it will become the major impetus for fueling green GDP growth and promoting urban sustainable development. This paper, from the urban sustainable development point of view, analyzes the social property and economic property of urban rail transit, and points out the direct effect and indirect effect on economic development by the urban rail transit construction. And advices about urban rail transit construction have been put forward in this paper. © 2011 Published by Elsevier Ltd.


Huang C.,Chinese Academy of Sciences | Xia Y.,China Railway 16th Bureau Group Co
Advanced Materials Research | Year: 2012

Urban rail transit plays a role of activating and leading regional economic development. It influences the spatial distribution of urban agglomeration and the progress of regional economic integration. It is a kind of virtuously cycled interactive relationship between regional economic development and regional rail transit. This paper analyzes the effect of urban rail transit construction project on regional economy based on the economic benefits arisen from it. The research results show that China's urban rail transit construction and regional economy can not realize balanced development unless the fact that the relationship between urban rail transit planning and regional economic development can be well coordinated, and meanwhile, the construction scale and service level of different phases of rail transit can be confirmed according to urban economic development level. © (2012) Trans Tech Publications, Switzerland.


Huang H.,China Railway 16th Bureau Group Co.
Modern Tunnelling Technology | Year: 2013

Using a tunnel on the Beijing Metro line 7 as an example, this paper predicts the surface settlement induced by tunnel excavation underneath the existing metro station using empirical methods, analytical methods, and numerical simulation. Soil reinforcement by means of deep-hole grouting and small pipe grouting was adopted where the tunnel passes under the existing metro station, which controls the surface settlement and ensures traffic safety within the existing station.


Huang C.,University of Science and Technology Beijing | Huang C.,China Railway 16th Bureau Group Co. | Tian S.,University of Science and Technology Beijing | Wang Y.,Beijing Jiaotong University | Dou Z.,University of Science and Technology Beijing
Electronic Journal of Geotechnical Engineering | Year: 2016

In the background of Tianjin Underground Diameter Line crossing the Haihe River, adopts the method of combining numerical simulation, grouting and monitoring, analyzes the ground settlement caused by shield crossing the Haihe River. First by building a three-dimensional numerical model, analyzes the sensitivity of elastic modulus, internal friction angle, cohesion, supporting pressure, dig distance and the tunnel buried depth with the maximum ground settlement, gets better fitting result. Then designs better plan than traditional grouting by calculating and testing, studies the change rules of bottom surface subsidence that before and after grouting, the maximum settlement changes from 51.8mm to 3.16mm with the rate of 93.9%. Finally by comparing the numerical simulation value after reinforcing with monitoring data, gets the consistency of them on effect rule and settlement, validates the rationality of the numerical simulation predicting and reinforcement scheme, provides reference for future similar projects. © 2016 ejge.

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