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Issue:
Tests on Shear Strength of Dam Normal Concrete Key Trench
Author(s):
CAI Shenghua
,
XIE Mengliang
,
CHEN Wenzhuo
Pages:
29
-
31
Year:
2014
Issue:
9
Journal:
Water Power
Keyword:
dam
;
key trench
;
normal concrete
;
parameter of shear strength
;
Tingzikou Water Control Project
;
Abstract:
亭子口水利枢纽坝基中存在缓倾角夹层,设计采用了在坝踵设置常态混凝土齿槽截断层的措施解决大坝深层抗滑稳定问题.测定大坝齿槽常态混凝土抗剪特性参数(摩擦系数f’、粘聚力c’)尤为重要,这两个参数是核算坝体抗滑稳定性的重要依据.通过现场原位抗剪试验,测得齿槽常态混凝土R90250F100W8(三级配)的摩擦系数f’在1.26⒍1.59之间,粘聚力c’在2.52~2.96 MPa之间.
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