Mooring systems are usually adopted to position floating structures,including mooring lines and anchors,and directly determine the safety of floating structures.Seabed inspection reported that seabed trenches induced ...Mooring systems are usually adopted to position floating structures,including mooring lines and anchors,and directly determine the safety of floating structures.Seabed inspection reported that seabed trenches induced by mooring line-soil interaction appear in front of the anchor and reduce the anchor bearing capacity.This work first introduces the research progress of mooring line-soil interaction and seabed trenching simulation.Research about the suction anchor capacity in clay and sand is presented,and the seabed trench influence on anchor capacity is analyzed.For anchor analysis,this study gives a new perspective to analyze anchor installation and bearing capacity,i.e.,structure-soil interface characteristic.Some common anchor types are analyzed.Results showed that seabed trench simulation is still needed to acquire trench 3D profiles,in which the mooring line-soil dynamic interaction cannot be ignored.At present,the trench influence is not considered in suction anchor design,making the design dangerous.For the anchor,the interface shear characteristics control the most unfavorable loading conditions.Thus,accurate interface parameters should be obtained for anchor analysis.展开更多
目的观察视觉反馈下离心收缩锻炼治疗跟腱病的疗效。方法将2014年6月-2015年12月于本科就诊的跟腱病患者64例随机分为两组,两组基线特征差异无统计学意义,对照组采用传统离心收缩锻炼方法治疗,治疗组采用视觉反馈下离心收缩锻炼方法治疗...目的观察视觉反馈下离心收缩锻炼治疗跟腱病的疗效。方法将2014年6月-2015年12月于本科就诊的跟腱病患者64例随机分为两组,两组基线特征差异无统计学意义,对照组采用传统离心收缩锻炼方法治疗,治疗组采用视觉反馈下离心收缩锻炼方法治疗,各组患者每周进行3次治疗,持续6周。治疗后对两组患者进行疗效评定,采用视觉模拟评分法(visual analogue scale,VAS)对患者跟腱疼痛程度进行评定,采用跟腱腱病评分法(victorian institute of sports assessmentachilles questionnaire,VISA-A)对患者跟腱功能进行评分。结果治疗6周后,治疗组和对照组VAS评分均降低,治疗组显著低于对照组(0.34±0.60 vs 1.28±1.05,P<0.05);治疗组和对照组VISA-A评分均提高,但两组差异无统计学意义(88.91±5.04 vs 87.93±5.63,P>0.05)。结论视觉反馈下离心收缩锻炼可以提高患者跟腱运动功能,减轻患者跟腱疼痛,疗效较传统离心收缩锻炼方法显著。展开更多
基金Finance Science and Technology Project of Hainan Province(ZDKJ202019)Key Research and Development Program of Zhejiang Province(2020C03012)+4 种基金National Natural Science Foundation of China(51779220)Natural Science Foundation of Zhejiang Province(LR22E080005,LHZ19E090003)the European Commission(HORIZON-MSCA-2022-PF-01,101108745)the Research Council of Norway(SFI BLUES project,309281)Zhejiang Key Laboratory of Marine Geotechnical Engineering and Materials(OGME22001).
文摘Mooring systems are usually adopted to position floating structures,including mooring lines and anchors,and directly determine the safety of floating structures.Seabed inspection reported that seabed trenches induced by mooring line-soil interaction appear in front of the anchor and reduce the anchor bearing capacity.This work first introduces the research progress of mooring line-soil interaction and seabed trenching simulation.Research about the suction anchor capacity in clay and sand is presented,and the seabed trench influence on anchor capacity is analyzed.For anchor analysis,this study gives a new perspective to analyze anchor installation and bearing capacity,i.e.,structure-soil interface characteristic.Some common anchor types are analyzed.Results showed that seabed trench simulation is still needed to acquire trench 3D profiles,in which the mooring line-soil dynamic interaction cannot be ignored.At present,the trench influence is not considered in suction anchor design,making the design dangerous.For the anchor,the interface shear characteristics control the most unfavorable loading conditions.Thus,accurate interface parameters should be obtained for anchor analysis.
文摘目的观察视觉反馈下离心收缩锻炼治疗跟腱病的疗效。方法将2014年6月-2015年12月于本科就诊的跟腱病患者64例随机分为两组,两组基线特征差异无统计学意义,对照组采用传统离心收缩锻炼方法治疗,治疗组采用视觉反馈下离心收缩锻炼方法治疗,各组患者每周进行3次治疗,持续6周。治疗后对两组患者进行疗效评定,采用视觉模拟评分法(visual analogue scale,VAS)对患者跟腱疼痛程度进行评定,采用跟腱腱病评分法(victorian institute of sports assessmentachilles questionnaire,VISA-A)对患者跟腱功能进行评分。结果治疗6周后,治疗组和对照组VAS评分均降低,治疗组显著低于对照组(0.34±0.60 vs 1.28±1.05,P<0.05);治疗组和对照组VISA-A评分均提高,但两组差异无统计学意义(88.91±5.04 vs 87.93±5.63,P>0.05)。结论视觉反馈下离心收缩锻炼可以提高患者跟腱运动功能,减轻患者跟腱疼痛,疗效较传统离心收缩锻炼方法显著。
