A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design of Haul Roads in Open Cast Mines in India—A Mechanistic Design Approach
https://orcid.org/http://orcid.org/0000-0001-9557-2041
About 80% of total mining in India is carried out in coal sector through open cast mines where heavy dumpers are plying on the haul roads. Mine haul roads have witnessed an enormous increase in traffic density as well as hauling payloads in the recent past due to increase in coal mining activities. In the Indian scenario, the majority of these large open cast mines are facing the problems of under-performance due to inadequate design of mine haul roads resulting into fast deterioration through rutting and excessive settlement. The present design methodology used in India is broadly based on an empirical CBR (California Bearing Ratio) method. This method seems to have become irrational for optimum and practical design of the haul roads which carry the present-day heavy traffic. Through this paper, an attempt has been made to develop a design based on mechanistic design approach. The main criteria to ensure the structural safety of mine haul roads has been taken as vertical compressive strain over the subgrade which is responsible for rutting failure in a pavement. The critical value of vertical compressive strain has been estimated for the Indian mine conditions. KENPAVE software has been used to design an optimum haul road cross section for existing heavy axle loads and traffic density in open cast coal mines in India. In order to have better appreciation, an example has also been given which compares the design output using conventional and the mechanistic methods.
Design of Haul Roads in Open Cast Mines in India—A Mechanistic Design Approach
https://orcid.org/http://orcid.org/0000-0001-9557-2041
About 80% of total mining in India is carried out in coal sector through open cast mines where heavy dumpers are plying on the haul roads. Mine haul roads have witnessed an enormous increase in traffic density as well as hauling payloads in the recent past due to increase in coal mining activities. In the Indian scenario, the majority of these large open cast mines are facing the problems of under-performance due to inadequate design of mine haul roads resulting into fast deterioration through rutting and excessive settlement. The present design methodology used in India is broadly based on an empirical CBR (California Bearing Ratio) method. This method seems to have become irrational for optimum and practical design of the haul roads which carry the present-day heavy traffic. Through this paper, an attempt has been made to develop a design based on mechanistic design approach. The main criteria to ensure the structural safety of mine haul roads has been taken as vertical compressive strain over the subgrade which is responsible for rutting failure in a pavement. The critical value of vertical compressive strain has been estimated for the Indian mine conditions. KENPAVE software has been used to design an optimum haul road cross section for existing heavy axle loads and traffic density in open cast coal mines in India. In order to have better appreciation, an example has also been given which compares the design output using conventional and the mechanistic methods.
Design of Haul Roads in Open Cast Mines in India—A Mechanistic Design Approach
https://orcid.org/http://orcid.org/0000-0001-9557-2041
About 80% of total mining in India is carried out in coal sector through open cast mines where heavy dumpers are plying on the haul roads. Mine haul roads have witnessed an enormous increase in traffic density as well as hauling payloads in the recent past due to increase in coal mining activities. In the Indian scenario, the majority of these large open cast mines are facing the problems of under-performance due to inadequate design of mine haul roads resulting into fast deterioration through rutting and excessive settlement. The present design methodology used in India is broadly based on an empirical CBR (California Bearing Ratio) method. This method seems to have become irrational for optimum and practical design of the haul roads which carry the present-day heavy traffic. Through this paper, an attempt has been made to develop a design based on mechanistic design approach. The main criteria to ensure the structural safety of mine haul roads has been taken as vertical compressive strain over the subgrade which is responsible for rutting failure in a pavement. The critical value of vertical compressive strain has been estimated for the Indian mine conditions. KENPAVE software has been used to design an optimum haul road cross section for existing heavy axle loads and traffic density in open cast coal mines in India. In order to have better appreciation, an example has also been given which compares the design output using conventional and the mechanistic methods.
Design of Haul Roads in Open Cast Mines in India—A Mechanistic Design Approach
J. Inst. Eng. India Ser. D
Verma, Meeta (author) / Roy, Indrajit (author) / Sahoo, U. C. (author)
Journal of The Institution of Engineers (India): Series D ; 101 ; 285-301
2020-12-01
17 pages
Article (Journal)
Electronic Resource
English
Mechanistic design approach for unsealed mine haul roads
| British Library Online Contents | 1994
Mechanistic design approach for unsealed mine haul roads
| British Library Conference Proceedings | 1994
Towards a mechanistic structural design method for surface mine haul roads
| British Library Online Contents | 1996
Towards a mechanistic structural design method for surface mine haul roads
| British Library Online Contents | 1996
A New Approach to Building Haul Roads
Online Contents | 2015