Results 71 to 80 of about 34,329 (209)

Research on stability mechanism of roadway roof under dynamic loading induced by blasting excavation

Meikuang Anquan
Addressing the stability issues of the immediate roof in roadways caused by subsidence and vibration during blasting excavation, this study takes the high-level drainage roadway of Panel 3203 in Wangpo Coal Mine as the engineering background.
Xiao LIU
doaj   +1 more source

Thermal Characteristics of Borehole Stability Drilling in Hot Dry Rock. [PDF]

ACS Omega, 2021
Zhu Z, Wang C, Guan Z, Lei W.
europepmc   +1 more source

Methods and standards development for three-dimensional mapping of the Antioch Quadrangle, Lake County, Illinois a pilot study [PDF]

, 2005
The Pilot Study for the Central Great Lakes Geologic Mapping Coalition (CGLGMC) focused on the Antioch Quadrangle, Lake County, Illinois developing a series of maps and digital products, several protocols for database development and maintenance and ...
Barnhardt, Michael L., Berg, Richard C.
core  

Anomalous luminescence of subglacial sediment at Haut glacier d'Arolla, Switzerland - a consequence of resetting at the glacier bed? [PDF]

, 2010
<p>Luminescence has the potential to elucidate glacial geomorphic processes because primary glacial sediment sources and transport pathways are associated with contrasting degrees of exposure to light.
Aitken, Aitken, Alley, Alley, Armitage, Bailey, Bateman, Bateman, Berger, Blair, Blake, Boulton, Burbidge, Copland, Dreimanis, Fischer, Fuchs, Fukuchi, Galbraith, Gemmell, Gemmell, Goodsell, Grenfell, Grum, Gurnell, Harbor, Hubbard, Krbetschek, Lee, Lian, Liritzis, Lukas, Murray, Nienow, Pegau, Rhodes, Rhodes, Rink, Sanderson, Sanderson, Sanderson, Sharp, Singhvi, Stone, Swift, Swift, Thomas, Toyoda, Tranter, Wallinga, Wallinga, Wintle, Wintle, Zöller   +53 more
core   +2 more sources

Calculation model for borehole collapse volume in horizontal openhole in formation with multiple weak planes

Petroleum Exploration and Development, 2014
In view of borehole collapse in testing of horizontal wells, a calculation model for borehole collapse volume of horizontal open-hole in multiple-weak-plane formation was set up to analyze the factors affecting collapse volume.
Zhiyuan LIU, Mian CHEN, Yan JIN, Xiangtong YANG, Yunhu LU, Qiquan XIONG   +5 more
doaj   +1 more source

A wireless multi-sensor subglacial probe: design and preliminary results

, 2006
This paper introduces a new way to investigate in situ processes, the wireless multi-sensor probe, as part of an environmental sensor network. Instruments are housed within a 'probe' which can move freely and so behave like a clast.
Hart, J.K., Martinez, K., Ong, R., Padhay, P., Riddoch, A., Rose, K.C.   +5 more
core   +1 more source

Modelling of deep wells thermal modes [PDF]

, 2019
Purpose. Investigation of various heat-exchange conditions influence of the tower liquid on the deep wells thermal conditions. Methods. Methods of heat-exchange processes mathematical modeling are used.
Blyuss, B, Bulat, A, Dreus, A, Dziuba, S, Liu, B   +4 more
core   +1 more source

Application of mineralogical, petrological and geochemical tools for evaluating the palaeohdrogeological evolution of the PADAMOT study sites [PDF]

, 2005
The role of Work Package (WP) 2 of the PADAMOT project – ‘Palaeohydrogeological Data Measurements’ - has been to study late-stage fracture mineral and water samples from groundwater systems in Spain, Sweden, United Kingdom and the Czech Republic, with ...
Bouch, J.E., Buil, B., Chenery, C.A., Chenery, S.R.N., Chvatal, M., England, G., Gillespie, M.R., Gomez, P., Haszeldine, S., Milodowski, A.E., Ortiz, J., Sebek, O., Shepherd, T.J., Silar, J., Strnad, L., Torres, T., Tullborg, E.L., Turrero, M.-J., Zacharias, J.   +18 more
core  

Technology of micro-cement injection of destroyed and fractured massif at orlovsky mine [PDF]

, 2017
Purpose. Research into the method of strengthening destroyed and fractured rock massif by micro-cement injection during rock driving at Orlovsky mine of “Vostoktsvetmet” LLP. Methods.
Konurin, A, Krupnik, L, Shaposhnik, S, Shaposhnik, Yu   +3 more
core   +3 more sources

DEVELOPMENT OF MEASURES TO ENSURE THE FAILURE-FREE DRILLING OF WELLS IN THE INTERVAL OF FROLOV SUITE ROCKS OCCURRENCE

Известия высших учебных заведений: Нефть и газ, 2015
The paper describes the analysis of study of hydration processes occurred in dense clay rocks stipulating the stability borehole walls at using various inhibitor solutions.
V. I. Rassadnikov, E. A. Usachev, M. V. Dvoinikov, T. V. Grosheva   +3 more
doaj   +1 more source