Table of Content

30 October 2016, Volume 32 Issue 5

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 Analysis on Frontier of Metallurgy Discipline Based on Bibliometrics and Knowledge Mapping

DU Xiang, ZHANG Guofei

2016, 32(5):  1-7.  doi:10.3969/j.issn.1009-0479.2016.05.001

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Quantitative and qualitative analysis of literatures on metallurgy disciplines from 2010 to 2016 in CNKI full一text database(Chinese core journals) was carried out by using the methods of bibliometric and knowledge mapping. The literatures in the field of metallurgy were analyzed from the time series，the core author, the distribution of research institutions，research hotspots and research front several aspects. The research trajectory of metallurgy was deduced and its research hotspot was also revealed.



Application Study of Equivalent Production Stripping Ratio in the Production of a Certain Open Pit Mine

HUANG Zhibing

2016, 32(5):  8-11，43.  doi:10.3969/j.issn.1009-0479.2016.05.002

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An open pit mine is a multi一metal hillside open pit mine with a design stripping ratio of 4. 5m³∕t. In the process of production management，the target of the mine production is mainly based on thecompany's production and management goals，production costs and mineral processing capacity. The output of ore is roughly constant，and the amount of the stripping is often affected by the influence of the concentrate sales price，the profit of the company and the cost of mining，and the mining production is often in a passive situation. Short一term increase or decrease the amount of stripping production will reduce the utilization of equipment so that increase production costs，and make the production of organizational complexity. Therefore，production stripping ratio must he optimized and controlled to achieve the purpose of rational exploitation.   According to the concept of equivalent production stripping ratio proposed in ref-
erence(ZHANG Guigun，WANG Dajun.  Application Study of Equival ent production Stripping Ratis in the Productisn of Open pit Mine[J]. Coou Technology of Northeast China，1997(6):11一12)，combined with the actual production of the mine，the equivalent production stripping ratio is calculated and used as the reference for the company and other similar companies. This can reduce mine production costs，ensure mine health and sustainable development.



Experimental Study on Mineral Processing of a Mixed Copper Mine in Yunnan

ZHAO Peizhu

2016, 32(5):  12-16.  doi:10.3969/j.issn.1009-0479.2016.05.003

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Beneficiation test of mixed copper ore in Yunnan was done. The results show that the ore by closed-circuit flotation process of a crude，two fine and two sweeps，the copper concentrate grade is20. 96 %，the copper recovery is 86.97 %，the silver grade is 406.09g∕t. and the silver recovery rate is 63. 62%. Objective elements have been recycled.


Geological Features and Genesis of the TangDan Copper Deposit in Dongchuan of Yunnan Province

YIN Qiong

2016, 32(5):  17-21，27.  doi:10.3969/j.issn.1009-0479.2016.05.004

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Based on the analysis of the metallogenic geological background of the Dongchuan copper deposit in Yunnan Province，geology and orebody geological characteristics of Tangdan copper deposit in the area are analyzed.  The genesis of the deposit is summarized，and it is believed that the genesis of this deposit belongs to the combination of sedimentary一metamorphism 一reforming.



Influence of Underground Mining of Copper Mine on 3^# Major Groove Dump in Dahongshan

LI Zaili, Lu Ping, Yang Ze

2016, 32(5):  22-27.  doi:10.3969/j.issn.1009-0479.2016.05.005

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The filling mining method of the underground point column changes the original stress state of overlying strata，which may lead to the surface distortion and movement of rock layer. Then，safe use and protection problems of 3# large ditch waste rock field will he affected. In order to ensure the stability of the surface waste rockfill，the finite difference program FLAC3 D was used to simulate the effect of underground orebody mining on the surface waste rockfill.  The simulation results show that the movement of strata is a dynamic process from bottom to top，and the subsidence deformation of the surface waste rock is only 3. 8 cm，and the surface does not produce plastic disturbance zone，which illustrates 3# ditch waste rock field is in a safe and stable state. The results provide guidance for the design and construction of 3# large ditch waste rock field.


Method Selection of Mining Method for Very Thin Seam Using Two-step Selection

QIU Yang

2016, 32(5):  28-31，69.  doi:10.3969/j.issn.1009-0479.2016.05.006

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Due to space limitation，thin seam mining operation is not only difficult to operate but also has poor economic returns.  Based on the investigation and analysis of the mining technology of ultra-thin coal seam in China，the applicable conditions of the main processes in the mining process are summarized
in this paper.  A scientific and systematic selection method is put forward by using the theory of value engineering，which can he used for reference in the mining of thin coal seam and the design.



Discussion on Investment Energy Consumption and Power Supply Distance of 380V and 660V Low Voltage Power Supply in Coal Mine

CHEN Wujun

2016, 32(5):  32-37，49.  doi:10.3969/j.issn.1009-0479.2016.05.007

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The electric energy loss and power supply distance of 380V and 660V underground power are calculated and compared by using the method of calculation and comparative analysis.  This work was based on the current situation of the power supply of the small coal mine in Yunnan local coal mine with the example of the power supply system of a mine. It was suggested that the 380V power supply system of small  mine in Yunnan local coal mine should he upgraded to 660V. 




Application of GPS in Large Scale Digital Mapping and Control Measurement in Mountainous Area

BU Jinwei, ZUO Xiaoqing

2016, 32(5):  38-43.  doi:10.3969/j.issn.1009-0479.2016.05.008

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The GPS-RTK technique，which is used to control the surveying in mountainous area and the layout method，data processing and accurate evaluation of large-scale digital mapping，are described. With this theory，engineering practice，precision analysis and verification are carried out.  The useful conclusions and suggestions are put forward，which will provide guidance and reference for engineering practice in the future.


Analysis of the Key Technologies of the New Direct Injection Constant Volume Combustion Test System

LI Tengzhong

2016, 32(5):  44-49.  doi:10.3969/j.issn.1009-0479.2016.05.009

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The GDI(Gasoline Direct Injection engine)technology of gasoline engines has important application value to the vehicle power, fuel economy and emission. A set of test systems of constant volume burner is designed by analyzing the problems existing in the current domestic and foreign research.  The key components of the control system of the constant volume burner are introduced，and the design principle of the oil pressure control unit, DC booster unit and time division drive unit is presented.  Simulation results of different inductance and the response of the fuel injector indicate that the designed system can meet the test requirements.

Soft Rock Construction of Bailiqing Tunnel in Qingshuihai Diversion Project

CHEN Zhongrun

2016, 32(5):  50-52.  doi:10.3969/j.issn.1009-0479.2016.05.010

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Bailiqing Tunnel in Qingshuihai Diversion Project in I}unming is located in the Xiaojiang fault zone，where the surrounding rock is loose and broken，the groundwater is abundant and the construction is easy to collapse. In view of the geological conditions，special support measures and landslide treatment schemes are adopted during the construction process，which is safe and quick.



  Research on Fine Management of Construction Engineering Based on BIM

ZHANG Wei, WANGMin, LIYan, Jin Jing

2016, 32(5):  53-56.  doi:10.3969/j.issn.1009-0479.2016.05.011

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IM technology as building information integration platform of a multi一dimensional model，integrates all project information of each stage of the whole life cycle of a construction project. The application of BIM technology in architectural design，project construction and management was discussed.  With an example，It is shown that BIM technology greatly enhances the feasibility of building design，implementation of building engineering calculations，construction simulation and three-dimensional collision checking and so on.



Discussion on Formulas for Calculating Earthwork by the Grid Method

YANG Yongping, CHEN Zhan, ZHANG Xiaolun

2016, 32(5):  57-61.  doi:10.3969/j.issn.1009-0479.2016.05.012

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The earthwork calculation is directly related to the cost estimate and the selection of the project，and it is an important link in the construction stage.  Three cases formula about the grid method of earthwork calculation is adopted in this paper，and the comparison and analysis are carried out in detail by means of the practical example.  Three cases formula meets the design principle of cut and fills balance and have been widely applied.  When the terrain without regular ground leveling，the results may he different if the formulas for calculation of earthwork grid method are different.  Suggestions to improve the precision are put forward by increasing elevation points and reducing the grid length，the earthwork calculation is easily achieved with the help of the main mapping software CASS.



The Analyzing and Designing on the Separate Entrance Examination Management System Based on the UML

SUN Wenxing, CHEN Hua

2016, 32(5):  62-69.  doi:10.3969/j.issn.1009-0479.2016.05.013

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The separate entrance examination management system can not only simplify the process of scheduling examination services，but also improve management efficiency.  According to the actual situation of the separate entrance examination in higher vocational college，the requirements and process of the examination were analyzed using the examination management system as the research object. The overall analysis and design of the system based on UML were also done.



Picking and Sorting Slots Design Based on Apriori Association Algorithm in Pharmaceutical Retail Distribution Center

TANG Kesheng, DUAN Limei

2016, 32(5):  70-72，90.  doi:10.3969/j.issn.1009-0479.2016.05.014

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The sorting position of the existing medicine retail distribution center(DC)is usually partiboned according to the storage type and storage condition of medicine，and the adjustment period of sorstorage is long in the same area，which affects the efficiency of sorting.  Based on Apriori association
algorithm and combined with the classification principle of ABC，A method of dynamic setting for sorting and reserving is proposed in this paper.  The method can greatly improve the sorting movement line，reduce the sorting distance，and improve sorting efficiency.



Some Thoughts on the Projective Transformation and the Inverse of Control Point in the Reconstruction of Three B-spline Curve

WANG Juan

2016, 32(5):  73-75，84.  doi:10.3969/j.issn.1009-0479.2016.05.015

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Abstract:It is proved that the cubic B一spline curve is still cubic B一spline curve after projective transformation. It is proposed that cubic B一spline curves in the image plane are the projective of cubic B一spline curves in space. The projective relations between the control points of the cubic B一spline curves in the image plane and the cubic B一spline curves in space are given.  A  method of solving B一spline curve control points is proposed.


The Project Development of Mine Design Principle Course

XIA Jianbo, Ma Juan, Song Qunling, Yao Zhiqi

2016, 32(5):  76-84.  doi:10.3969/j.issn.1009-0479.2016.05.016

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The project-based development of”mine design principle"  course was carried.  Based onthe analysis of the work tasks and professional ability of mine design positions，the curriculum learning project was set up，and the curriculum learning module is developed by project，and the project teaching plan was designed. Taking the students as the main body，teaching model based on the work process oriented，task driven project are carried out in the teaching process. The curriculum reform and teaching innovation of mine design principles are advanced.



A Study on the Teaching Model of Germany，the United States and Japan Car Brand University-Enterprise Cooperation in Higher Vocational Colleges

SHI Haoyu, YANG Wenting

2016, 32(5):  85-90.  doi:10.3969/j.issn.1009-0479.2016.05.017

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In this paper, the specific teaching practice was discussed,、山ch is the cooperation between the vo-
rational colleges and the automobile brands of Germany , America and Japan. This paper focuses on the teaching mode of German一enterprise cooperative project represented by a Sino一German SGAVE project, and highlights the important characteristics of task一oriented , student一centered and competency一oriented.  At the same time，the TOYOTA T一TEP project and Ford STWP project as the representative of Japan and the United States are also introduced. It is emphasized that the details of students'work and the cultivation of work quality in T一TEP project teaching. In view of China's current problems in the teaching of vocational colleges，the influence of different school enterprise cooperation projects on the teaching of higher vocational colleges is analyzed场combining with the characteristics of teaching different projects. At the same time，according to the different characteristics of different types of teaching in higher vocational colleges，the suggestions are given.



Discussion on the Reform of Automobile Maintenance Technology and Equipment Course in Higher Vocational Education

LI Yuan

2016, 32(5):  91-94.  doi:10.3969/j.issn.1009-0479.2016.05.018

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Taking into account the characteristics of professional courses of automobile maintenance technology and equipment in vocational colleges，in view of the practical problems appeared in the process of teaching，combining with the characteristics of higher vocational college students，and social requirement
for the graduate students，The teaching model changed the traditional teaching model of higher education was put forward. This model is a combination of various teaching methods that students can better accept, increase the interactive teaching links between teachers and students，and add teaching reform thought of combining theory with practice. In the specific teaching process，a solid theoretical teaching，simulation software(equipment) teaching，special experiments，hands-on practice and comprehensive assessments were used as one of the teaching implementation plan.  The purpose is to he able to adapt to the actual needs of the maintenance business，student characteristics and professional development.