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Dimension-Stone Quarrying Optimization through Integrated Modelling between Joint Sets and Cutting Grid: a Case Study at Tan Long Dimension Stone Quarry in Southcentral Coastal Province of Binh Dinh

Pham Van Viet, Nguyen Anh Tuan, Pham Van Hoa, Tran Dinh Bao

Inżynieria Mineralna

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2023

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no. 2, vol. 1

239--248

EN

Dimension-stone quarrying optimization is significantly important to increase the recovery ratio of dimension stone and to reduce the cutting cost. Due to fracture-existed rock mass, in the mining operation block size and mining direction influences to the recovery ratio and the cutting cost. Therefore, the paper suggests the quarrying optimization for dimension stone to obtain the highest recovery ratio and the lowest cutting cost, based on optimizing block size and mining direction to get a cutting grid of dimension stone. Through developing an integrated modelling between joint set modelling and cutting grid modelling, intact blocks and fractured blocks were generated. From this, block statistics were conducted to get the maximum recovery ratio of dimension stone and the minimum cutting rate between the cutting area and the recovered block volume, which helps to choose an optimizing block size and mining direction. The research was carried out at Tan Long dimension stone quarry where a block size (0.9m x 0.6m x 1.35m) and a mining direction paralleling to joint set 1 will ensure the highest recovery ratio of 13.87% and the lowest cutting rate of 25 m2/m3.

2

Rola kamienia w przestrzeni miejskiej Pruszkowa

Górska-Zabielska M., Zabielski R.

Przegląd Geologiczny

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2017

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Vol. 65, nr 11/3

1471--1476

EN

The geological heritage of Pruszków is absent in the inhabitants’ consciousness, even though it is within their reach. In addition to the short characteristics of geodiversity of the area, the paper also presents eight large boulders and other stone elements in the town. They have a great potential in playing cognitive, educational, cultural-historical, geo-conservative and aesthetic roles. These functions can be used in the development of urban geotourism and in shaping the town’s image in accordance with the principles of sustainable development.

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Badania mineralogiczne, petrograficzne i geochemiczne procesu wietrzenia naturalnych skał z wychodni karbońskich pod kątem rozpoznania technologii obróbki kamienia użytego do wykonywania przedmiotów i kamiennych obiektów Neolitycznych w stanowisku archeologicznym Burren-Marlbank, Irlandia

Pawlikowski M.

Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering

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2017

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nr 23

1--25

PL

Park Burren-Marlbank jest jednym z bardziej znanych obiektów Neolitycznych w którym występują kamienne a megality oraz liczne dowody aktywności człowieka w tym ryty skalne. Przedmiotem opracowania jest sprawdzenie struktur i składu mineralnego skał znajdujących się poza rejonem parku, pod kątem genezy niektórych obiektów. Próbki do badań pobrano z miejsc występowania skał w naturalnych odsłonięciach by nie niszczyć chronionych obiektów Parku. Przez analogie interpretowano rzeźby i ryty skalne dzieląc je na wykonane przez człowieka i te które powstały w wyniku procesów geologicznych.

EN

Due to the protection of monuments in the Neolithic archaeological site of Burren-Marlbank, Ireland, mineral and petrographic studies of local rocks in their natural outcrops have been undertaken. Those rocks were used during the Neolithic period for both construction of architectural sites as well as for various types of objects and rites. Stereoscopic, polarizing, scanning microscopy, as well as Raman spectroscopy were used in the studies. Obtained results and conclusions can be applied by analogy to the protected antique stone objects at the site. The results prove that due to lack of siliceous raw materials, local Neolithic tools were made of extruded rock of porcelanite characteristics. Recognition of inventory of stone tools will allow us to determine types of Neolithic man’s activities at the site. sandstones, which influences their different susceptibility to weathering processes. That caused the formation of natural erosive forms with macroscopic features on the rocks, suggesting their creation by human hand. Recognition of natural rocks allowed us to determine features that distinguish between rocks that have been affected and not affected by human activity, based on the degree of cracking of the grains in the surface rocks. The research shows that coal deposits may have existed in Carboniferous rocks at the Burren-Marlbank site area. Perhaps it was the local coal used in hearths in the Neolithic period (in the absence of another fuel due to poor plant representation) that was the decisive factor in the location of the settlement in this place. This hypothesis and the obtained results should be tested in further research.

4

Vlhkost v historickej budove

Vojtus J.

Budownictwo o Zoptymalizowanym Potencjale Energetycznym

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2008

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nr (5)

339--343

EN

There were presented problems of surface condencation in stone and mixet wools.

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Małe budowle wodne z gabionów - charakterystyka i badania wstępne

Jędryka E., Kamińska A.

Woda-Środowisko-Obszary Wiejskie

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2004

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T. 4, z. 2a

95-110

PL

W artykule przedstawiono informacje dotyczące elementów gabionowych stosowanych w budownictwie hydrotechnicznym. Scharakteryzowano kilka wykonanych w ostatnich latach budowli piętrzących skonstruowanych z użyciem gabionów. Na tym tle przedstawiono zagadnienia z zakresu budownictwa wodnego, które powinny być rozwiązane w pierwszej kolejności. Pokrótce scharakteryzowano zakres planowanych badań terenowych oraz obiekty badawcze. Przedstawiono wstępne wyniki prac terenowych wykonanych w okresie budowy obiektów i bezpośrednio po ich oddaniu do eksploatacji.

EN

The article presents information about gabion elements applied in hydraulic engineering. Characteristics of damming structures made of gabions during the last years is given. Problems of water-engineering which seem to be worth solving in first sequence are described. The paper presents a range of field studies and site surveys. Preliminary results of field studies made during construction works and shortly afterwards are given.