Wykorzystanie maszyny drążącej tunele serii XRE w kopalni węgla „Grosvenor”(Queensland, Australia)

• Autorzy: Rauer M.

Warianty tytułu

EN

Application of an XRE series tunnel boring machine in the Grosvenor Coal Mine (Queensland, Australia)

• Języki publikacji: PL

Abstrakty

PL

W artykule przedstawiono przebieg i wyniki drążenia w kopalni węgla „Grosvenor” w Australii w dwóch upadowych maszyną drążącą tunele (TBM) typu XRE 8,0 m H.P. której projekt został dostosowany do zróżnicowanych warunków geologiczno-górniczych, w tym pracy w warunkach zagrożenia metanowego. Artykuł przedstawia również charakterystykę drążonego górotworu, kryteria projektowe przedsięwzięcia, budowę maszyny oraz osiągi uzyskane podczas drążenia upadowych, a ponadto – w sposób syntetyczny – korzyści związane z wykorzystaniem TBM i przyszłością ich zastosowania.

EN

In 2013, a tunnel boring machine (TBM) was used in the Grosvenor Coal Mine (Australia) to make two dip tunnels in a rock formation with methane and varying physical and mechanical characteristics. The TBM applied on site was a hybrid design, combing single shield tunnelling with rock formation pressure equalization. The TBM has been designed not only to secure efficient tunnelling with the installation of prefabricated concrete casing segments, but also to assure safe operation in methane explosion hazard areas. The first conveyor dip tunnel began in soft subsurface rocks and continued through hard rock down to the target coal bed. The tunnelling was accomplished in 20 weeks at an average production of ca. 40 m/week and an average drilling speed of 1.32 m/h. Next, the TBM was withdrawn from the finished conveyor dip tunnel and moved to begin drilling a dip gate road. This time, the processing performance was better. The 988.40 m long heading was breached in just 13.5 weeks. The average production of 70.6 m/week was achieved at an average drilling speed of 1.83 m/h. The undisputed TBM advantages in this case were the work progress rate and the improvement of health and safety conditions, which prevented the miners from exposure to operation under unsupported ceilings, dust, and smoke at all tunnelling stages. The concrete casing deployed with the TBM has made both dip tunnels the highest quality development headings of all coal mines in the world, both in terms of aesthetics and service life. The segmented casing is stable and very durable, especially at points with very weak and brittle rocks. Another advantage of the casing is its very low maintenance demand. The Grosvenor project has proven that TBMs are well suited for breaking main development headings and gate roads and provide numerous advantages that are superior to the traditional boring technologies.

Słowa kluczowe

PL

drążenie wyrobisk; TBM; nowe technologie; zagrożenie metanowe

EN

excavations driving; TBM; new technologies; methane hazard

• Wydawca: Wyższy Urząd Górniczy
• Czasopismo: Bezpieczeństwo Pracy i Ochrona Środowiska w Górnictwie
• Rocznik: 2016
• Tom: nr 8
• Strony: 20--33
• Opis fizyczny: Bibliogr. 7 poz.

Twórcy

autor

Rauer M.

• Robbins Asia Pacific, Brisbane

Bibliografia

• 1. Brox D.: Technical Considerations for TBM tunneling for mining projects. Transactions of the Society for Mining, Metallurgy and Exploration 2013, Vol. 334, s. 498–505.
• 2. Cigla M., Yagiz S., Ozdemir L.: Tunnel Boring Machines in Underground Mine Development. International Mining Congress, Ankara 2001.
• 3. Correy B.: Built to break through – New requirements at mining operations are opening the door to mechanized tunneling. Canadian Institute of Mining, Metallurgy and Petroleum, CIM Magazine March/April 2014.
• 4. Desiree W.: Mechanized Mining: Are TBMs the Way into the Future?, Tunnel, Issue 5/2012.
• 5. Rauer M.: Tunnel Boring Machines in Mines: a brief review of past use with a status report on use today in Australia. Proceedings of the 15th Australasian Tunneling Conf. 2014, Paper no. 86.
• 6. Reuther E.: Textbook on Mining. Textbook on Mining with focus on hard coal 2010, Vol. 1.
• 7. Scialpi M., Ofiara D.: Unique Hybrid EPB Design for use in Coal Mine Drifts. 2014/2015.