电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2015年
z1期
215-219
,共5页
海底电缆%海底沉积物%抗剪强度%测试方法比较
海底電纜%海底沉積物%抗剪彊度%測試方法比較
해저전람%해저침적물%항전강도%측시방법비교
submarine cable%submarine sediments%undrained shear strength%comparative study of test methods
本次研究的对象为某柔性直流输电工程海底电缆路由区域内的上部沉积物。在海底电缆路由勘察过程中通过工程地质钻探、重力取样器取得了大量原状沉积物柱状样。对取得的原状沉积物样本,分别采用用微型十字板剪切试验、无侧限抗压强度试验及不固结不排水三轴剪切试验测定其抗剪强度,并将获得的结果进行对比,以推荐适合电缆路由区域海底沉积物抗剪强度的测试方法。为海底电缆路由确定及工程设计提供了准确的基础资料,对施工及运行过程中的安全提供了初步保障;为今后北黄海浅海地区的其它海洋工程建设、设计提供了参考。
本次研究的對象為某柔性直流輸電工程海底電纜路由區域內的上部沉積物。在海底電纜路由勘察過程中通過工程地質鑽探、重力取樣器取得瞭大量原狀沉積物柱狀樣。對取得的原狀沉積物樣本,分彆採用用微型十字闆剪切試驗、無側限抗壓彊度試驗及不固結不排水三軸剪切試驗測定其抗剪彊度,併將穫得的結果進行對比,以推薦適閤電纜路由區域海底沉積物抗剪彊度的測試方法。為海底電纜路由確定及工程設計提供瞭準確的基礎資料,對施工及運行過程中的安全提供瞭初步保障;為今後北黃海淺海地區的其它海洋工程建設、設計提供瞭參攷。
본차연구적대상위모유성직류수전공정해저전람로유구역내적상부침적물。재해저전람로유감찰과정중통과공정지질찬탐、중력취양기취득료대량원상침적물주상양。대취득적원상침적물양본,분별채용용미형십자판전절시험、무측한항압강도시험급불고결불배수삼축전절시험측정기항전강도,병장획득적결과진행대비,이추천괄합전람로유구역해저침적물항전강도적측시방법。위해저전람로유학정급공정설계제공료준학적기출자료,대시공급운행과정중적안전제공료초보보장;위금후북황해천해지구적기타해양공정건설、설계제공료삼고。
The object of this study is the upper submarine sediments. During the investigation of submarine cable route area, lots of undisturbed samples were taken by engineering geological drilling and gravity core sampler. By miniature vane shear testing, unconifned compression testing and triaxial compression testing,the undrained shear strength of undisturbed sediment samples were measured. And then, by comparing results obtained from different methods, the optimal testing method was obtained. On the basis of the study, more accurate test results and basic data can be provided for determining of submarine cable route and engineering design;Preliminary security can be provided during construction and operation of the submarine cable;and the study result can also be as a reference for the ocean engineering nearby.