人民黄河
人民黃河
인민황하
Yellow River
2015年
9期
99-101
,共3页
现场试验%软弱结构面%抗剪强度参数%古贤水利枢纽工程
現場試驗%軟弱結構麵%抗剪彊度參數%古賢水利樞紐工程
현장시험%연약결구면%항전강도삼수%고현수리추뉴공정
in-situ tests%weak structural plane of rock mass%anti-shear parameters%Guxian Hydro-Junction Project
软弱结构面对坝基抗滑稳定极为不利，古贤水利枢纽工程坝址区岩体软弱结构面发育，为确定其软弱结构面抗剪强度参数，在坝址区PD204、PD205、PD207、PD302试洞开展了现场软弱结构面抗剪强度试验，根据试验观测数据，计算得到了软弱结构面的抗剪断和抗剪强度参数。从试验结果分析来看，其抗剪断强度略大于抗剪强度。
軟弱結構麵對壩基抗滑穩定極為不利，古賢水利樞紐工程壩阯區巖體軟弱結構麵髮育，為確定其軟弱結構麵抗剪彊度參數，在壩阯區PD204、PD205、PD207、PD302試洞開展瞭現場軟弱結構麵抗剪彊度試驗，根據試驗觀測數據，計算得到瞭軟弱結構麵的抗剪斷和抗剪彊度參數。從試驗結果分析來看，其抗剪斷彊度略大于抗剪彊度。
연약결구면대패기항활은정겁위불리，고현수리추뉴공정패지구암체연약결구면발육，위학정기연약결구면항전강도삼수，재패지구PD204、PD205、PD207、PD302시동개전료현장연약결구면항전강도시험，근거시험관측수거，계산득도료연약결구면적항전단화항전강도삼수。종시험결과분석래간，기항전단강도략대우항전강도。
The weak structural plane of rock mass is harmful to anti-sliding stability of dam foundation. The weak structural plane of rock mass in Guxian Hydro-Junction Project is highly developed. In order to obtain the anti-shear parameters of weak structural plane of rock mass in Guxian Hydro-Junction Project,in-situ direct shear tests were carried out on experimental cavities of PD204,PD205,PD207 and PD302 in the dam-site. The anti-shear parameters of weak structural plane of rock mass were determined to analyze experimental data. The results of the experiment were used for references of engineering geological investigation and engineering design. From the analysis of test results,the shear strength is slightly larger than the shearing strength and debris mud weak structure surface shear strength is greater than the clay shear strength of weak structural plane.
