Core Technologies and Applications

Current core technologies owned by JCHX include:

Steady Transiting from Open Pit to Underground Mining in Complex Mine and No-Waste Mining

Heating and Thermal Insulation for Capital Construction of Mines in Cold Zone

Ground Control and Inter-Level Shifting During Underhand Hexagonal Drift and Fill Mining

Paste Filling in Upperhand Cut & Fill Mining

Application of TBM in Potash Mine (Exclusively Owned Technology)

Rapid Drifting & Shaft Sinking in Metal Mines under Hard Rock Condition

High Quality & Efficient Decline Development

Paralleled Shaft Sinking & Headframe Erection

Pre-Installation for Shaft Deepening

Ground Support in Poor Strata with High Horizontal Stress

Handling Blockage in Ore Pass with Boosters

Fast Sinking of Large & Deep Shaft

Mucking with Conveyor Belt Through Incline in Metal Mines

R&D Achievements

Remarkable achievements were made by JCHX through dynamic integration of technological research and innovation, engineering design consultation and project management.

S&T Achievements

Code for design of nonferrous metal mining	Code for underground opening acceptance of non-ferrous metal mines
Code for design of underground opening ofnon-ferrous metals mine	Code for underground opening installation acceptance of non-ferrous metal mines
First Prize of 2011 Miyun County S&T Award (rapid drift excavation technology by drilling jumbo for non-coal mines)	Second Prize of 2013 S&T Award by China Non-Ferrous Metals Industry Association (study of comprehensive technology for decline excavation with high quality and efficiency)
Third prize of 2013 S&T Award by China Non-Ferrous Metals Industry Association (study of new technology for chute development at areas with complicated formation)	Main shaft sinking and passing & crushing system development of the mining project at XI block of Tonglushan Mine for Daye Nonferrous Metals Group
Excellent project certificate for Dabaozhuang Pyrite Mine at Lujiang, Anhui (April 3, 2013)	Study of comprehensive technologies for steady transfer from open pit to UG mining and wasteless mining at complicated mining areas
New main shaft sinking of the reconstruction and expansion works of 3000 tpd mining and processing project for Hubei Sanxin Gold Copper Limited Company	Excellent construction certificate for mining preparation decline of Jinchuan project
Excellent construction certificate for the belt conveyor of Kailin project	Validation project at Dongtai Potash Mine in Laos
Study of heating and thermal insulation for capital construction of mines at cold areas	Capital development and infrastructure construction at the west orebody of Chambishi Copper Mine in Zambia
Second Prize of S&T Award by China Non-Ferrous Metals Industry Association (drift excavation and support in poor strata with high stress)	First Prize of S&T Award by China Non-Ferrous Metals Industry Association (study of rapid UG construction at metal mines under hard rock condition)
Excellent construction certificate for 1170 main adit at Yongshaba Mine of Kailin Group	Excellent construction certificate for underground works of mining and processing project (phase Ⅰ) at Pulang Copper Mine
Ore Drawing System of UG Development Works for Mining and Processing Project (Phase Ⅰ) at Pulang Copper Mine	Excellent Work Certificate for Main Shaft Sinking and Lining Works at Musonoi Cooper & Cobalt Mine in DRC
Excellent Work Certificate for 980mL Inset Development for Service Shaft at Southeast Oerbody of Chambishi Copper Mine in Zambia

Core Technologies and Applications

Current core technologies owned by JCHX include:

* Steady transfer from open pit to UG mining and wasteless mining at complicated mining areas；

* Heating and thermal insulation for capital construction of mines at cold areas；

* Ground control and inter-level shifting during underhand hexagonal drift and fill mining；

* Paste filling for upperhand cut & fill mining；

* Application of TBM at Potash Mines (Exclusively Owned)；

* Rapid UG construction at metal mines under hard rock condition；

* High quality & efficient decline development；

* Paralleled shaft sinking & tower construction；

* Pre-Installation for Shaft Deepening；

* Ground support in poor strata with high horizontal stress；

* Handling chute blockage with boosters；

* Fast Sinking of Large & Deep Shaft；

* Mucking with conveyor belt through incline at metal mines.

Technology Applications: