安徽省枞阳县高峰村同咀崩塌稳定性分析与评价
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摘要
通过实地踏勘并辅以钻探等技术手段,对枞阳县高峰村同咀崩塌的边坡地形地貌、地层岩性、地质构造、水文地质条件、工程地质条件以及人类工程活动等条件进行调查,并在进行变形位移监测的基础上,对研究区崩塌灾害的发育特征、影响因素以及形成机制进行了分析,并采用极限平衡法对崩塌灾害的稳定性进行了评价。研究结果表明:2处崩塌灾害规模等级均属小型,破坏方式均为滑移式;影响因素主要包括人工切坡,钾长花岗岩强烈风化,构造裂隙、风化裂隙和卸荷裂隙发育和强降雨等; 2处崩塌在天然工况下处于基本稳定状态,在暴雨工况下处于欠稳定状态,需采取相关治理措施。依据分析评价结果对崩塌灾害治理提出了防治方案建议。
On the basis of field reconnaissance and drilling, the slope topography, stratigraphic lithology, geological structure, hydrogeological conditions, engineering geological conditions and human engineering activities of Tongzui collapse in Gaofeng village of Zongyang county have been analyzed. Based on the deformation displacement monitoring, the development characteristics, influencing factors and formation mechanism of the collapse disasters in the study area have been analyzed, and the stability of slope has been calculated by limit equilibrium method. It is showed that the scales of the two collapse disasters are small and the failure modes are all slipping. The influencing factors mainly include artificial slope cutting, strong weathering of K-feldspar granite, tectonic fracture, weathering fissure and unloading fissure development and heavy rainfall. The two collapse disasters are in a basically stable state under natural conditions, and they are in an unstable state under heavy rain conditions, and relevant treatment measures need to be taken. Based on the results of the analysis and evaluation, recommendations for prevention and treatment of the two collapse disasters have been put forward.
On the basis of field reconnaissance and drilling, the slope topography, stratigraphic lithology, geological structure, hydrogeological conditions, engineering geological conditions and human engineering activities of Tongzui collapse in Gaofeng village of Zongyang county have been analyzed. Based on the deformation displacement monitoring, the development characteristics, influencing factors and formation mechanism of the collapse disasters in the study area have been analyzed, and the stability of slope has been calculated by limit equilibrium method. It is showed that the scales of the two collapse disasters are small and the failure modes are all slipping. The influencing factors mainly include artificial slope cutting, strong weathering of K-feldspar granite, tectonic fracture, weathering fissure and unloading fissure development and heavy rainfall. The two collapse disasters are in a basically stable state under natural conditions, and they are in an unstable state under heavy rain conditions, and relevant treatment measures need to be taken. Based on the results of the analysis and evaluation, recommendations for prevention and treatment of the two collapse disasters have been put forward.
引文
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[10]秦泗伟,王光栋.日照市西赵村崩塌地质灾害评估及治理方法[J].山东国土资源,2014,30(12):51-53.
(1)安徽省地勘局区域地质调查队,区域地质调查报告(1∶5万)义津桥幅、枞阳县幅、汤沟镇幅,1985年。
(2)安徽省地矿局第二水文地质工程地质勘查院,安徽省1∶50万环境地质调查报告,2000年。
(3)安徽省地质环境监测总站,安徽省枞阳县1∶10万地质灾害调查与区划报告,2002年。
(4)安徽省地质矿产勘查局321地质队,铜陵市枞阳县雨坛乡高峰村同咀村民组崩塌地质灾害勘查报告,2017年。
(5)安徽省地质矿产勘查局326地质队,安徽省枞阳县1∶5万地质灾害调查报告,2015年。
[2]刘传正.地质灾害勘查指南[M].北京:地质出版社,2000:1-20.
[3]门玉明,王勇治,郝建斌,等.地质灾害治理工程设计[M].北京:冶金工业出版社,2011:1-15.
[4]工程地质手册编写委员会.工程地质手册(第四版)[S].北京:中国建筑工业出版社,2007:1-25.
[5]GB/T32864-2016.滑坡防治工程勘查规范[S].
[6]DZ/T0219-2006.滑坡防治工程设计与施工技术规范[S].
[7]GB50330-2013,建筑边坡工程技术规范[S].
[8]金志,解会存,洪欢仁.安徽省宿松县长溪山村江冲滑坡稳定性分析与评价[J].地质灾害与环境保护,2017,28(1):7-11.
[9]杨全城,王庆兵,董玉龙,等.济南药山崩塌地质灾害治理方法初探[J].山东国土资源,2017,33(2):43-46.
[10]秦泗伟,王光栋.日照市西赵村崩塌地质灾害评估及治理方法[J].山东国土资源,2014,30(12):51-53.
(1)安徽省地勘局区域地质调查队,区域地质调查报告(1∶5万)义津桥幅、枞阳县幅、汤沟镇幅,1985年。
(2)安徽省地矿局第二水文地质工程地质勘查院,安徽省1∶50万环境地质调查报告,2000年。
(3)安徽省地质环境监测总站,安徽省枞阳县1∶10万地质灾害调查与区划报告,2002年。
(4)安徽省地质矿产勘查局321地质队,铜陵市枞阳县雨坛乡高峰村同咀村民组崩塌地质灾害勘查报告,2017年。
(5)安徽省地质矿产勘查局326地质队,安徽省枞阳县1∶5万地质灾害调查报告,2015年。