海洋通报
海洋通報
해양통보
MARINE SCIENCE BULLETIN
2014年
3期
328-332
,共5页
周松望%周杨锐%李亚%张炜%董明明%刘双双
週鬆望%週楊銳%李亞%張煒%董明明%劉雙雙
주송망%주양예%리아%장위%동명명%류쌍쌍
SHANSEP%单剪试验%k0固结不排水%不排水抗剪强度%超固结比%静力触探 (CPT)
SHANSEP%單剪試驗%k0固結不排水%不排水抗剪彊度%超固結比%靜力觸探 (CPT)
SHANSEP%단전시험%k0고결불배수%불배수항전강도%초고결비%정력촉탐 (CPT)
SHANSEP%Direct Simple Shear%K0 consolidated-undrained%undrained shear strength%over-consolidation ratio%Cone Penetration Test (CPT)
利用单剪 SHANSEP 试验方法测定了南海某石油平台场址两种粘性土层的不排水剪切强度。通过对比单剪 SHANSEP试验结果、原位静力触探(CPT)试验结果和三轴不固结不排水(UU)试验结果,表明通过单剪 SHANSEP 试验确定的粘土不排水强度与现场 CPT 解释结果更趋于一致,同时也表明了 SHANSEP 方法适合于中国南海粘性土强度的评价。因此利用单剪 SHANSEP 试验能够克服土样扰动对粘土强度的影响,更加客观评价粘性土的强度,为工程设计提供可靠的数据。
利用單剪 SHANSEP 試驗方法測定瞭南海某石油平檯場阯兩種粘性土層的不排水剪切彊度。通過對比單剪 SHANSEP試驗結果、原位靜力觸探(CPT)試驗結果和三軸不固結不排水(UU)試驗結果,錶明通過單剪 SHANSEP 試驗確定的粘土不排水彊度與現場 CPT 解釋結果更趨于一緻,同時也錶明瞭 SHANSEP 方法適閤于中國南海粘性土彊度的評價。因此利用單剪 SHANSEP 試驗能夠剋服土樣擾動對粘土彊度的影響,更加客觀評價粘性土的彊度,為工程設計提供可靠的數據。
이용단전 SHANSEP 시험방법측정료남해모석유평태장지량충점성토층적불배수전절강도。통과대비단전 SHANSEP시험결과、원위정력촉탐(CPT)시험결과화삼축불고결불배수(UU)시험결과,표명통과단전 SHANSEP 시험학정적점토불배수강도여현장 CPT 해석결과경추우일치,동시야표명료 SHANSEP 방법괄합우중국남해점성토강도적평개。인차이용단전 SHANSEP 시험능구극복토양우동대점토강도적영향,경가객관평개점성토적강도,위공정설계제공가고적수거。
The undrained shear strengths of two types of cohesive soils are tested by SHANSEP method. By comparison with the results of SHANSEP, unconsolidated-undrained (UU) and cone penetration test (CPT) , the results of SHANSEP are consistent with those of CPT and greater than those of UU, which indicate that the SHANSEP method can reduce the effect of disturbance and is suitable for the objective evaluation of offshore cohesive soils from the South China Sea. Therefore, the SHANSEP method is recommended to accurately assess the strength of cohesive soils for the engineering design.