Centrifuge modeling of cracking and hydraulic fracturing in core dams induced by abrupt change of bank slope

Qi Fei Niu, Yu Jing Hou, Jian Hui Liang, Chong Peng

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The differential settlement induced by discontinuous gradient of bank slope is one of the main reasons for transverse cracking and hydraulic fracturing in core earth dams. A series of centrifuge modeling tests and calculations are conducted in this research. The results show that the abrupt change of bank slope can lead to differential settlement which contributes to the transverse cracking in the core dams. The compaction degree of soil is a key factor affecting the formation of transverse cracking and the degree of differential settlement. The hydraulic fracturing owing to the cracks may occur in the core dams with abrupt change of bank slope during rapid reservoir filling.

Original languageEnglish
Pages (from-to)1935-1941
Number of pages7
JournalYantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering
Volume32
Issue number12
StatePublished - Dec 2010

Keywords

  • Abrupt change of bank slope
  • Centrifuge modeling
  • Differential settlement
  • Hydraulic fracturing
  • Transverse crack

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