Overview
Stage | Production |
Mine Type | Underground |
Commodities |
- Copper
- Molybdenum
- Gold
- Silver
- Sulphuric acid
|
Mining Method |
|
Production Start | ...  |
Mine Life | 2057 |
For the Chuquicamata Underground Mine Project Portfolio, the program considers three main investments: the "Initial Exploitation," the works associated with "Continuity Infrastructure Phase I," and the "Development of Mining Works."
Within the advances of the year 2022, the initial exploitation works of the Chuquicamata Underground Mine were completed, and progress continued on the "Level 1 Continuity Infrastructure" and "Development of Mining Works" projects. |
Latest News | Chile's Codelco to invest $720 million in Chuquicamata copper mine November 22, 2023 |
Source:
p. 20
Codelco Corp. have seven mine sites (known as “divisiones”): Chuquicamata, Ministro Hales, Radomiro Tomic, Gabriela Mistral, Salvador, Andina, El Teniente, in addition to the Ventanas Smelter and Refinery.
Contractors
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Summary:
The Chuquicamata district includes the Chuquicamata and Radomiro Tomic megadeposits, the exotic copper deposit Mina Sur, the newly developed Ministro Hales mine (formerly known as Mansa Mina) located 5.5 km south of Chuquicamata, and the deposits of the Toki cluster (Toki, Genoveva, Quetena, Miranda, and Opache) located about 15 km SSW of Chuquicamata.
The deposits of the district are located in the Late Eocene–Early Oligocene (43–31 Ma) porphyry copper belt that extends for about 1,400 km, from 18°S to 31°S (Sillitoe 1988; Sillitoe and Perelló 2005). The rocks in the area range in age from Paleozoic to Tertiary. The main structural feature observed is the West Fault, which is part of the Domeyko Fault System (Boric et al. 1990; Dilles et al. 1997) and divides the district in two domains: an eastern domain and a western domain.
The Chuquicamata deposit is a porphyry-type ore body. The most important feature of the ore body is a north-south regional fault, the west fissure fault, which cuts the ore on the west side and creates a sharp limit on the deposit. An oxide ore zone was a large part of the deposit and has been almost totally mined out. The mine contains a supergene enrichment layer (a redeposit of copper, by natural forces, from higher to lower layers), which has a thickness of almost 800 meters near the center of the mine. Five kilometers north of Chuquicamata, the ore body narrows and merges with the Radomiro Tomic ore body
Summary:
(Translated from Spanish by Google Translate)
In 2019, the historic Chuquicamata deposit began to ramp down production in the open pit make the shift to a high-tech underground mine operation.
Chuquicamata Subterránea will transform the century-old Chuquicamata open-pit mine, the largest in the world, into a modern large-scale underground operation using the block caving method of exploitation, extending the life of the division by at least 40 years.
The ore will be extraced through an extensive “block caving” operation, by installing four production levels. 140.000 tons of ore will be mined and treated per day, making Chuquicamata one of the largest mining operations on the globe
The new mine design for PMCHS is based on the following mine production process:
1. Initiates with the use of rock mass intensive preconditioning, which consists of the application of hydraulic fracturing and confined blasting to improve rock mass fragmentation and caveability.
2. Continues with the application of a high undercut (20 m) in order to minimise flow detentions at the initial part of the ore column extraction.
3. Caved ore is loaded by 20 t LHDs at the drawpoints, transported and directly tipped into a 500 t run-of-mine bin that feeds a wide feed gyratory crusher.
4. Crushed ore transported by an intermediate conveyor belt that feeds the main ore handling system.
100% electromobility in unde ........

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Summary:

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Reserves at December 31, 2022:
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
751 Mt
|
Copper
|
0.79 %
|
6 Mt
|
Probable
|
483 Mt
|
Copper
|
0.44 %
|
2.1 Mt
|
Proven & Probable
|
1,234 Mt
|
Copper
|
0.66 %
|
8.1 Mt
|
Measured
|
979 Mt
|
Copper
|
0.78 %
|
7.7 Mt
|
Indicated
|
596 Mt
|
Copper
|
0.66 %
|
3.9 Mt
|
Inferred
|
1,376 Mt
|
Copper
|
0.48 %
|
6.6 Mt
|
Total Resource
|
2,951 Mt
|
Copper
|
0.62 %
|
18.2 Mt
|
Source:

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HME Type | Model | Quantity | Status | Ref. Date |
Bolter
|
.......................
|
|
Existing
|
May 28, 2020
|
Drill
|
.......................
|
|
Existing
|
May 28, 2020
|
Loader
|
.......................
|
|
Existing
|
May 28, 2020
|
.......................
|
.......................
|
.......................
|
Proposed
|
Aug 4, 2021
|
Scoop Tram
|
.......................
|
|
Existing
|
May 28, 2020
|
Truck (underground)
|
.......................
|
|
Existing
|
May 28, 2020
|
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