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

Year 2020, Volume: 59 Issue: 2, 101 - 111, 01.06.2020

Bukang Wang Qi Wang Fei Yan

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

Abstract

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.

Keywords

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

Supporting Institution

Key R&D Program of China

Project Number

2017YFC080430-5

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

Abstract

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.

Keywords

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

Project Number

2017YFC080430-5

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