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Keywords: borehole
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Proceedings Papers

Paper presented at the ISRM Regional Symposium - 12th Asian Rock Mechanics Symposium, November 22–26, 2022
Paper Number: ISRM-ARMS12-2022-008
... the anchors de- and re-stressable. For an easy, safe and reliable control of the anchor forces during tensioning, several strands were equipped with DYNA Force load sensors. To ensure the quality of construction, UTRACON GROUP used borehole endoscope to check groundwater, carter problem in borehole during...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-250
... in detail in authors’ various former publications. The GPGPU-parallelized HFDEM3D is then applied to model the rock fracture and fragmentation process by the detonation of a single borehole and simultaneous and consecutive detonations of multiple boreholes. 1. Introduction Blasting has been widely...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-320
... that the relative density becomes smaller as the depth of the soil layer is more deeply buried. After comparative analysis, the calculation results of the method in this paper are very close to the in-situ test of boreholes. It solves the problem of the difficulty in sampling deep-covered sandy soil in its original...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-352
... introduce a new approach that involves the empirical integration of rock mechanical and geophysical parameters. Our novel approach provides an efficient alternative to the borehole tests for the estimation of rock mechanical parameters, such as the rock mass integrity coefficient ( Kv ). This approach gives...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-448
... and designing boreholes heat exchanges. However, it is still challenging to collect accurate data about strata thermal conductivity. With the application of copper mesh heated optical cable, actively heated fiber (CMCH), optics based thermal response test (ATRT) offers the possibility of fast and accurate...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-594
... of hydraulic fracturing, a quick-test device used in boreholes with an aperture of 31mm was developed to measure the in situ stress. An inversion software was programmed based on the multiple linear regression method to obtain the stress field. Lastly, three engineering cases were presented to introduce...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-578
... Abstract The excavation of vertical boreholes is involved in several geotechnical engineering constructions. Earth pressure in the soil is released during the drilling process, resulting in soil stress redistribution and borehole contraction along the excavation surface. The stress...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-563
... fracture and bedding planes on hydraulic fracture propagation, and few studies have explored the fracture propagation in the vicinity of a borehole. Therefore, the present paper intends to simulate the fracture propagation in the vicinity of a borehole under the joint impact of heterogeneity, natural...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-625
.... On the other hand, after decades of operation of the reservoir, some of the grouting curtains are gradually aging, which results in an increased leakage and making the dam in an unfavorable state. geologist leakage eigenvalue investigation borehole society iop publishing iop conf reliability...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-659
... drilling cannot provide enough support force for the rock around borehole as that of conventional overbalanced drilling. Due to the combination influence of engineering and geological factors, the borehole rock is prone to instability during gas drilling, which can lead to rock blocks falling from the well...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-661
... storage cavern environmental science 861 reservoir characterization underground water-sealed storage cavern conference tank borehole sedimentary rock natural gas storage cavern underground storage cavern construction geological subdiscipline society iop publishing iop conf underground space...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-009
... from the same run of core. structural geology isrm international symposium specimen conductivity reservoir geomechanics Singapore sandstone Reservoir Characterization strength median value asian rock mechanics symposium 29 Upstream Oil & Gas borehole jurong rock deep...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-028
... (GD), resistivity, magnetics, electromagnetic, seismic wave, seismic CT, gravity, sonic and ultrasonic methods have been extensively applied to the identification of strata interfaces at initial stage of geologic prospecting (1). In terms of technology, borehole penetrating test and coring...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-037
... crystalline rock at 500m depth below ground surface and has a floodable volume of approx. 900m 3 . Information of fracture distribution has been obtained by borehole investigation and mapping of gallery walls. The change of hydraulic pressure, hydrochemical condition and rock deformation have been monitored...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-078
...)) to investigate and identify the country's deep geology characteristics and identify sites suitable for such developments to support URA's development of the underground masterplan (Lim, 2018). reserves evaluation isrm international symposium assessment US government cavern borehole investigation...

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