NON-REPEATED SUPPORT TECHNOLOGY OF GOB SIDE ENTRY RETAINING WITH ROOF CUTTING TO RELEASE PRESSURE

Yıl 2020, Cilt: 59 Sayı: 2, 101 - 111, 01.06.2020

Bukang Wang Qi Wang Fei Yan

https://doi.org/10.30797/madencilik.758004

Öz

Temporary support of the gob side entry is of great significance to the safety mining. Taking
the 1206 transportation tunnel of Shuguang Coal Mine as the engineering background, firstly,
the key technical parameters of roof cutting to release pressure were given, the bolt and cable
support parameters before entry retaining and the large deformation constant resistance cable
reinforcement support parameters of retained entry were determined. Secondly, according to the
overlying strata collapse patterns and mechanical model of gob side entry, the calculation formula
of temporary support resistance in the dynamic pressure bearing area was derived. Finally, on
the basis of determining the temporary support parameters, ZLQ2826/22.5/38 type of nonrepeated
support and transportation equipment of alternating pressure cycles was developed,
the main technical parameters and structural characteristics were analyzed, and a new type of
fast and efficient non-repeated temporary support technology in the dynamic pressure bearing
area was proposed. Field practice shows that the support parameters are reasonable, the
support equipment and bolt support system have a good cooperative support effect, and the roof
subsidence and roof separation have been effectively controlled. In the subsequent use process,
the structure of support devices should be further optimized to improve the support effect.

Anahtar Kelimeler

Mining engineering, Gob side entry retaining, Dynamic pressure bearing area, Non-repeated temporary support, Entry support

Destekleyen Kurum

Key R&D Program of China

Proje Numarası

2017YFC080430-5

BASINCI AZALTMAK İÇİN TAVAN KESME İLE DESTEKLENEN GÖÇÜK TARAFI GİRİŞİNİN TEKRARSIZ DESTEK TEKNOLOJİSİ İLE TAHKİMATI

Öz

Güvenli bir madencilik için göçük tarafından açılan galerilerin ilk tahkimatları büyük önem
arz etmektedir. Shuguang Kömür Madeni'nin 1206 no’lu nakliye galerisinin mühendislik
geçmişi özelinde; öncelikle, galeri üzerindeki gerilmelerin rahatlatılması adına tavan kazısının
yapılmasının ardından, yüksek deformasyonlara müsaade etmeden, kablolu ankrajlar ile tavanın
tahkim edilmesi önemlidir. İkincil olarak, yürüyen tahkimatların taşıma kapasitesini dikkate alacak
şekilde geçici tahkimat dayanımlarının yaklaşımı, askıda kalan tavanın ve göçük tarafındaki
yapının mekanik modeline dayanarak elde edilmiştir. Son olarak, geçici tahkimat parametrelerinin
belirlenmesine dayanarak, alternatif basınç çevrimlerinin ZLQ2826/22.5/38 tipi tekrarlanmayan
tahkimat ve nakliyat ekipmanı geliştirilmiş; temel teknik parametreler ve yapısal özellikler analiz
edilmiş ve dinamik basınç taşıma alanında yeni, hızlı ve verimli, tekrarlanmayan geçici tahkimat
teknolojisi önerilmiştir. Saha uygulaması, tahkimat parametrelerinin kabul edilebilir olduğunu,
tahkimat ekipmanının ve kaya saplama tahkimat sisteminin tahkimat etkisiyle uyumlu olduğunu
ve tasman ve tavan ayrışmasının etkili bir şekilde kontrol edildiğini göstermektedir. Müteakip
kullanımlarda, tahkimatın etkisini geliştirmek için tahkimat ekipmanlarının yapısı daha da optimize
edilmelidir.

Anahtar Kelimeler

Maden mühendisliği, Göçük tarafı giriş tahkimatı, Dinamik basınç taşıma alanı, Tekrarlanmayan geçici tahkimat, Giriş tahkimatı

Proje Numarası

2017YFC080430-5

Kaynakça

• Gao, Y. B., Guo, Z. B., Yang, J., Wang, J. W., Wang, Y. J., 2017. Steady Analysis of Gob-Side Entry Retaining Formed by Roof Fracturing and Control Techniques by Optimizing Mine Pressure. Journal of China Coal Society, 42 (7), 1672-1681.
• Guo, Z. B., Wang, J., Cao, T. P., Chen L, Wang, J., 2016. Research on Key Parameters of Gob-Side Entry Retaining Automatically Formed by Roof Cutting and Pressure Release in Thin Coal Seam Mining. Journal of China University of Mining and Technology, 45 (9), 879-885.
• He, M. C., Chen, S. Y., Guo, Z. B., Yang, J., Gao, Y. B., 2017a. Control of Surrounding Rock Structure for Gob Side Entry Retaining by Cutting Roof to Release Pressure and Its Engineering Application. Journal of China University of Mining & Technology, 46 (9), 959- 969.
• He, M. C., Song, Z. Q., Wang, A., Yang, H. H., Qi, H. H., Guo, Z. B., 2017b. Theory of Long Wall Mining by Using Roof Cutting Short Wall Team and 110 Method. Coal Science & Technology Magazine, 11 (1), 1-9.
• He, M. C., Ma, X. G., Niu, F. L., Wang, J., Liu, Y. X., 2018. Adaptability Research and Application of Rapid Gob-Side Entry Retaining Formed by Roof Cutting and Pressure Releasing with Composite Roof and Medium Thick Coal Seam. Chinese Journal of Rock Mechanics and Engineering, 37 (12), 2641-2654.
• Hua, X. Z., 2006. Development Status and Improved Proposals on Gob-Side Entry Retaining Support Technology [J]. Coal Science and Technology, 34 (12), 78-81.
• Kilerci, İ., Başsüllü, A., Önder, B., İpek, O. 2019. Finite- Elements Method Aided Examination of the Selection of Steel Profiles in Accordance with the Rock Mass Used in Trapezoidal Cross-Sectioned Roadway. Scientific Mining Journal, 58 (3), 229-238.
• Li, L., Bai, J. B, Wang, X. Y., 2012. Rational Position and Control Technique of Roadway Driving Alone Next Goaf in Fully Mechanized Top Coal Caving Face. Journal of China Coal Society, 37 (9), 1546-1569.
• Lin, B. Q., Zou, Q. L., Shen, C. M., Xu, Y. P., Dai, H. M., Yang, W., 2013. Investigation on Highly Effective Depressurization Property of Dual-Power Drilling and Its Application. Journal of China Coal Society, 38 (6), 911-917.
• Ma, X. G., He, M. C., Sun, J. D., Hu, J., Zhang, X. Y., Zhang, J. B., 2019. Research on the Design of Roof Cutting Parameters of Non Coal Pillar Gob-Side Entry Retaining Mining with Roof Cutting and Pressure Releasing. Geotechnical and Geological Engineering, 37, 1169-1184.
• Sun, H. H., Wu, J., Qiu, Y.X., 1992. Rules of Ground Pressure and Strata Control in Gateways Main-Tainted in Goaf. Journal of China Coal Society,17 (1),15-24.
• Sun, X. M., Liu, X., Liang, G. F., Wang, D., Jiang, Y. L., 2014. Key Parameters of Gob-Side Entry Retaining Formed by Roof Cut and Pressure Releasing in Thin Coal Seams. Chinese Journal of Rock Mechanics and Engineering. 33 (7), 1449-1456.
• Tan, Y. L., Yu, F. H., Ning, J. G., Zhao, T. B., 2015. Design and Construction of Entry Retaining Wall Along A Gob Side Under Hard Roof Stratum. International Journal of Rock Mechanics and Mining Sciences, 77 (3),115-121.
• Villaescusa, E., Varden, R., Hassell, R., 2008. Quantifying the Performance of Resin Anchored Rock Bolts in the Australian Underground Hard Rock Mining Industry. International Journal of Rock Mechanics and Mining Sciences, 45 (1), 94-102.
• Wang, Q., Fan, Y. P., Li, G., Guo, W. X., Yan, D. H., Zhang, L. P., 2017. Research on Width of Pillar Between Roadways of Fully Mechanized Caving Face with Double Roadways Layout in Thick Coal Seam. Rock and Soil Mechanics, 38 (10), 3395-3405.
• Xue, Y., 2013. From Tradition to Modern Times: Evolution of Coal Mining Technology in China. Journal of Hubei Polytechnic University, Humanities and Social Science, 30 (5), 7-15.
• Zhang, G. F., Xu, Y. Q., Ge, P. T., 2018. Research on Cut Gob-Side Entry Retaining in Thin Coal Seam of Tangshan Ditch. Chinese Journal of Rock Mechanics and Engineering, 47 (5), 468-477.
• Zhang, Z. Y., Hideki, S., Qian, D. Y., Takashi, S., 2016. Application of the Retained Gob-Side Gateroad in a Deep Underground Coalmine. International Journal of Mining, Reclamation and Environment, 30 (11), 371- 389.