The Shear‐Wave Splitting Study of Sichuan Zipingpu Reservoir Region

Yong-jiu, Zhang; Gao, Yuan; Shi, Yaolin; Ling-xue, Tai

doi:10.1002/cjg2.1545

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…The school reconstruction after 5.12 Wenchuan earthquake makes the first model, as shown in Fig. 1 [2], [3], [4]. The performance of its focus is on the concept of local culture to promote the preservation and revival of local tradition in the reconstruction of one physical space, while remodeling a spiritual home with cultural identity everywhere.…”

Section: Introductionmentioning

confidence: 99%

To Explore Campus Spirit — A Research on the Campus Renewal Design of Chengdu Xindu No. 2 Middle School

Wei

Dong

Wang³

et al. 2011

AMR

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The campus should be a spiritual place, which is full of cultural significance. Adhered to the search of campus spirit, used for reference of the valuable experience on the school reconstructions after 5.12 Wenchuan earthquake, this paper studies certain main points in the campus renewal design process of Xindu No.2 middle School. Through literature research, questionnaires, surveys, local observe, visit research, the historical evolution and the space form related information have been grasped. The campus problems to be solved by renewal design have been found through the present situation analysis. Based on the overall construction of the campus environment, the school has to renew the integrity design systems, sets up and follows the three design strategies, namely, "spatial distribution reflects the concept of sustainable development", "morphological mutant to continue the traditional & historical context," "detailed designs to highlight the geographical and cultural characteristics", to ensure the creation of the great campus spirit.

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Section: Introductionmentioning

confidence: 99%

To Explore Campus Spirit — A Research on the Campus Renewal Design of Chengdu Xindu No. 2 Middle School

Wei

Dong

Wang³

et al. 2011

AMR

View full text Add to dashboard Cite

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Rock Damage Structure of the South Longmen‐Shan Fault in the 2008 M8 Wenchuan Earthquake Viewed with Fault‐Zone Trapped Waves and Scientific Drilling

2014

Acta Geologica Sinica (Eng)

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: This article is to review results from scientific drilling and fault‐zone trapped waves (FZTWs) at the south Longman‐Shan fault (LSF) zone that ruptured in the 2008 May 12 M8 Wenchuan earthquake in Sichuan, China. Immediately after the mainshock, two Wenchuan Fault Scientific Drilling (WFSD) boreholes were drilled at WFSD‐1 and WFSD‐2 sites approximately 400 m and 1 km west of the surface rupture along the Yinxiu‐Beichuan fault (YBF), the middle fault strand of the south LSF zone. Two boreholes met the principal slip of Wenchuan earthquake along the YBF at depths of 589‐m and 1230‐m, respectively. The slip is accompanied with a 100–200‐m‐wide zone consisting of fault gouge, breccia, cataclasite and fractures. Close to WFSD‐1 site, the nearly‐vertical slip of ∼4.3t‐m with a 190‐m wide zone of highly fractured rocks restricted to the hanging wall of the YBF was found at the ground surface after the Wenchuan earthquake. A dense linear seismic array was deployed across the surface rupture at this venue to record FZTWs generated by aftershocks. Observations and 3‐D finite‐difference simulations of FZTWs recorded at this cross‐fault array and network stations close to the YBF show a distinct low‐velocity zone composed by severely damaged rocks along the south LSF at seismogenic depths. The zone is several hundred meters wide along the principal slip, within which seismic velocities are reduced by ∼30–55% from wall‐rock velocities and with the maximum velocity reduction in the ∼200‐m‐wide rupture core zone at shallow depth. The FZTW‐inferred geometry and physical properties of the south LSF rupture zone at shallow depth are in general consistent with the results from petrological and structural analyses of cores and well log at WFSD boreholes. We interpret this remarkable low‐velocity zone as being a break‐down zone during dynamic rupture in the 2008 M8 earthquake. We examined the FZTWS generated by similar earthquakes before and after the 2008 mainshock and observed that seismic velocities within fault core zone was reduced by ∼10% due to severe damage of fault rocks during the M8 mainshock Scientific drilling and locations of aftershocks generating prominent FZTWs also indicate rupture bifurcation along the YBF and the Anxian‐Guangxian fault (AGF), two strands of the south LSF at shallow depth. A combination of seismic, petrologic and geologic study at the south LSF leads to further understand the relationship between the fault‐zone structure and rupture dynamics, and the amplification of ground shaking strength along the low‐velocity fault zone due to its waveguide effect.

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The Shear‐Wave Splitting Study of Sichuan Zipingpu Reservoir Region

Cited by 2 publications

References 23 publications

To Explore Campus Spirit — A Research on the Campus Renewal Design of Chengdu Xindu No. 2 Middle School

To Explore Campus Spirit — A Research on the Campus Renewal Design of Chengdu Xindu No. 2 Middle School

Rock Damage Structure of the South Longmen‐Shan Fault in the 2008 M8 Wenchuan Earthquake Viewed with Fault‐Zone Trapped Waves and Scientific Drilling

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