摘要
隆尧地裂缝灾害主要表现为地表建筑不同类型和程度的破坏,其损毁类型分为3种:水平拉张、垂直位错和横向剪切。依据地表建筑损毁程度不同划分为5个等级:完全损毁区、重度损毁区、一般损毁区、微影响区和安全区,统计各损毁等级距地裂缝的距离,提出“损毁度”概念,量化各损毁等级的影响范围。对比分析隆尧地裂缝区地表变形相对影响范围和潜在隐伏裂隙威胁区,厘定各损毁等级下的安全避让距离。基于安全系统理论,隆尧地裂缝上盘安全避让距离为60 m,下盘为40 m;拟合损毁度和安全避让距离曲线,为全区地裂缝场区安全避让距离提供指导建议。
Ground fissure disasters in Longyao are mainly caused by different types and degrees of damage to the surface buildings,which are three types of damage:horizontal tensional,vertical dislocation and transverse shear.According to the degree of damage to the surface construction to divide five grades:completely damaged area,severely damaged area,general damaged area,micro-impact area and safety area.calculate the distance of each damage level from the ground fissures,The concept of“damage degree”is proposed to quantify the impact scope of each damage grade.Contrastive analysis of the relative influence range of surface deformation and potential hidden fracture threat area in Longyao ground fissure area to determine the safe avoidance distance under each damage level.Based on safety system theory,safety avoidance distance is 60 m and 40 m of upper and lower plate in Longyao Ground Fissures area.Fitting the damage degree and the safe avoidance distance curve to provide guidance for the safe avoidance distance of the ground fissures field in the whole area.
作者
吴玉涛
杨为民
周俊杰
于鸿坤
李晓乐
张田田
万飞鹏
WU Yutao;YANG Weimin;ZHOU Junjie;YU Hongkun;LI Xiaole;ZHANG Tiantian;WAN Feipeng(Guangdong Hualu Transport Technology Co.,Ltd.,Guangzhou,Guangdong 510420,China;Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing 100081,China;China University of Mining and Technology,Beijing 100083,China;China Ordnance Industry Survey and Geotechnical Institute Co.,Ltd.,Beijing 100053,China;Beijing Urban Construction Group Co.,Ltd.,Beijing 100088,China;China University of Geosciences(Beijing),Beijing 100083,China)
出处
《中国地质灾害与防治学报》
CSCD
2020年第2期67-73,共7页
The Chinese Journal of Geological Hazard and Control
基金
中国地质调查局项目:京津冀协同发展区活动断裂与区域地壳稳定性调查(DD20160267)
沈抚新区活动构造与地质调查(DD20190318)
广东省交通运输厅科技计划项目:安全与节能沥青路面关键技术研究(科技-2016-02-009)。
关键词
隆尧地裂缝
损毁等级
损毁度
安全避让距离
拟合曲线
Longyao ground fissures
damage grades
damage degree
safety avoidance distance
fitting curve
