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1-20 of 284
Keywords: deformation
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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-ARMS12-2022-029
... constitutive model is used for the rock domain and the Johnson-Cook model was used for the drill rod. A comparative analysis was done between the stresses and deformations generated in both rotary and percussive drilling techniques for a particular drill bit diameter. Thereafter, the loading rate was increased...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 12th Asian Rock Mechanics Symposium, November 22–26, 2022
Paper Number: ISRM-ARMS12-2022-004
... of in-situ rock masses. The authors present the method for determining creep parameters of rock masses using bending-compression tests and transforming Even-Hoek s deformation modulus formula. As a result, the translated formula of creep parameters between rock specimens and rock masses is acquired. Keywords...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-255
... compressive strength loading research university diameter deformation 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP Conf. Series: Earth and Environmental Science 861 (2021) 042089 doi:10.1088/1755-1315/861/4/042089 Rapid in situ test and determination of dam foundation weak...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-333
... to establish a comprehensive evaluation method for the operation and maintenance status of urban deep metro stations. conference maintenance operation society iop publishing iop conf information aggregation research defect environmental science 861 evaluation deterioration deformation...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-316
... Abstract In the construction of pipe-jacking tunnels, simultaneous injecting is a key in controlling surface deformation and jacking force. At present, the traditional simultaneous injecting research is mainly limited to the study of slurry materials and the friction coefficient, while...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-306
... on a single bridging asperity results in the surface deformation of itself and the surrounding areas. The aggregate of such deformations exerted by all contacting asperities leads to the total deformation of a fracture. Therefore, the deformation behaviour of a stressed fracture is governed by the mechanical...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-318
... grade surrounding rock can ensure the safety of raw water pipe and the stability of stratum. According to the measured data, the calculated results are in good agreement with the measured data. 1. Introduction It is well known that mining tunnel construction will cause deformation of surrounding...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-363
... the deformation of the surrounding ground around the new structure than the under-pinning method alone. Introduction Overcrowding is increasing in urban areas due to population growth and economic development. In particular, there are many tunnels and pipes buried underground for railroads, gas...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-364
... Abstract Many tunnels face large soft rock deformation problems in Southeast China. Double-layer's initial support could effectively solve the problem of large deformation in soft rock tunnels, which can flexibly control the timing and ensure support stability. Combined with the Yuntunbao...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-326
... modeling of the rock strength. geologist reservoir characterization particle engineering geology geological subdiscipline rock mechanic reservoir geomechanics simulation deformation international journal experiment rock engineering mechanism stiffness society iop publishing iop conf...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-367
... plate tectonics geological subdiscipline structural geology society iop publishing iop conf deformation rock type environmental science 861 geologist conference electric power industry standard people reservoir characterization china stability engineering beijing characteristic...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-359
... Abstract On the basis of the analytic hierarchy process (AHP) and entropy weight method, combined with the statistical results of large deformation under the complex geological conditions of Galigongshan tunnel, the grade cloud model evaluation method of the large deformation of surrounding...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-386
...-section deformation ovalization society iop publishing iop conf tunnel geological subdiscipline plane conference dislocation simulation mountain tunnel cross-sectional ovalization environmental science 861 tawarayama tunnel 11th Conference of Asian Rock Mechanics Society IOP Publishing IOP...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-321
... quality inspection. Thus, together with the partial roof of the basement and steel pipe columns, the diaphragm wall was utilized as a part of the support system. Several measures were taken to avoid deformation risk resulting from short embedded sections. They included structure optimization...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-305
..., evaluation and early warning of the long-term stability of reservoir bank slopes. 1. Introduction Rock masses are generally affected by complex external stress in engineering, which leads to creep deformation influencing long term stability of slopes. The significance of rock rheological properties...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-401
... mechanism. The results show the following: (1) Heavy rainfall and poor drainage conditions are direct trigger factors for landslide reactivation. (2) The reactivation process is promoted by multiple factors such as the slope deformation, rainfall infiltration, and the strength of geomaterials, which...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-376
... Abstract During the construction of the Muzhailing tunnel, the maximum deformation of the surrounding rock was more than 2500 mm. When the tunnel is in the breakthrough stage, more attention should be paid to the danger of large deformation in order to ensure the safety of construction...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-365
... Abstract Describing the phenomena and laws of rock mass-aging deformation is an important research area on bearing plate tests. Presently, no unified analytical solution exists for characterizing time-dependent displacements of flexible and rigid circular bearing plate tests. Because...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-379
... wellbore is also analyzed. The results show that the deep brittle shale has high mechanical strength, is highly brittle, and developed bedding fractures. Under the condition of low confining pressure, the stress-strain curve of shale before fracture is mainly elastic deformation, and the plastic mechanical...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-434
... in this research provides sufficient regional stress field data in H-UGS. 1. Introduction H-UGS is located at the junction of the southern margin of the Junggar Basin and the eastern part of the northern Tianshan Mountains. The deformation characteristics reflect the coupling between the Tianshan...
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