叶巴滩水电站高地应力现象及地应力场反演分析∗
Inversion Analysis of High Geostress Phenomenon and Geostress Field of Yebatan Hydropower Station
- 防灾减灾工程学报 2023年43卷第1期 页码：70-77
- 作者机构：
成都理工大学环境与土木工程学院地质灾害防治与地质环境保护国家重点实验室,四川,成都,610059
- 作者简介：
- 基金信息：国家自然科学基金面上项目(41272333)、国家重点基础研究发展计划(2011CB013501)资助
DOI：
中图分类号：-
纸质出版：2023
- 稿件说明：
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蒋行行. 叶巴滩水电站高地应力现象及地应力场反演分析∗[J]. 防灾减灾工程学报, 2023,43(1):70-77.
蒋行行,赵其华,韩刚,陈舒怡,佐旭明.叶巴滩水电站高地应力现象及地应力场反演分析∗[J].防灾减灾工程学报,2023,43(1):70-77
摘要
为了研究叶巴滩水电站坝址区的地应力场特征，通过现场地质调查，对坝址区高地应力现象的发育形态特征和空间分布特征进行描述和分析，结果表明：坝址区岩芯饼化发育的强烈段多分布在河床以及两岸低高程；片帮现象以轻微片帮和中等片帮发育为主；岩芯饼化和片帮集中发育段可判定为应力集中带。同时，根据坝址区工程地质条件和实测地应力资料，通过数值反演分析方法，考虑地形地貌和断层对初始应力场影响，对坝址区的初始应力场进行反演分析。结果表明：反演应力值与实测应力值基本吻合，能够较合理、准确反映坝址区的初始应力场；坝址区的初始应力场是由自重应力场和构造应力场叠加而成，且以水平向构造应力为主；坝址区应力场可以大致划分为应力松弛带、谷底的应力集中带、岸坡应力过渡带和岸坡深部的应力平稳带；在模型边界断层上下盘附近会有一定的应力集中现象，形成高地应力区。
Abstract
In order to study the characteristics of the geostress field in the dam area of Yebatan Hydropower Station， a field geological survey was conducted to describe and analyze the development forms and spatial distribution characteristics of the high geostress phenomena at the dam site. The results show that the strong sections of core cake development at the dam site are mainly located in the riverbed and at the low elevation of both banks； the flaking phenomenon is mainly characterized by slight flaking and medium flaking； Stress concentration zone can be defined as core discing and strip concentration. At the same time， according to the engineering geological conditions and in-situ stress data of the dam site， the numerical method is used to invert the initial stress field of the dam site， which is considering the influence of topography and fault on the initial stress field. The results show that the inversion stress values are basically consistent with the in-situ stress values， and this reflects that the initial stress field of the dam site is reasonable and accurate； the initial stress field of the dam site is composed of gravity stress field and tectonic stress field and the horizontal tectonic stress is the main stress. The stress field of the dam site can be divided into stress relaxation zone， stress concentration zone of the valley floor， stress transition zone of the bank slope， and stress leveling zone of the deep bank slope； there will be a certain stress concentration phenomenon near the footwall of the model boundary fault， forming a high in-situ stress area
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references
王思敬,黄鼎成.中国工程地质世纪成就[M].北京:地质出版社,2004.Wang S J,Huang D C.Century achievements of Chi?nese engineering geology[M].Beijing:Geological pub?lishing house,2004.(in Chinese)
张倬元,王士天,王兰生,等.工程地质分析原理[M].北京:地质出版社,2016.Zhang Z Y,Wang S T,Wang L S,et al.Principle of en?gineering geology analysis[M].Beijing:Geologicalpublishing house,2016.(in Chinese)
胡伟,邬爱清,陈胜宏,等.高地应力钻孔岩心饼裂特征研究[J].长江科学院院报,2018,35(3):13?20.Hu W,Wu A Q,Chen S H,et al.Characteristics ofrock core discing under high geostress[J].Journal ofYangtze River Scientific Research Institute,2018,35(3):13?20.(in Chinese)
Obert L,Stephenson D E.Stress conditions underwhichcore discing occurs[J].Society of Mining Engineers ofAIME Transactions,1965,232(3):227?235.
赵青,赵其华,彭社琴,等.某水电站坝区高地应力释放现象及成因研究[J].地球科学进展,2009,24(6):636?642.Zhao Q,Zhao Q H,Peng S Q,et al.A study of causesof high round stress release in the area of a hydropowerstation dam[J].Advances in Earth Science,2009,24(6):636?642.(in Chinese)
陈菲,何川,邓建辉.高地应力定义及其定性定量判据[J].岩土力学,2015,36(4):971?980.Chen F,He C,Deng J H.Regression analysis of initialgeostress field in dam zone of Dagangshan hydropowerstation[J].Rock and Soil Mechanics,2015,36(4):971?980.(in Chinese)
柴贺军,刘浩吾,王明华.大型电站坝区应力场三维弹塑性有限元模拟与拟合[J].岩石力学与工程学报,2002,21(9):1314?1318.Chai H J,Liu H W,Wang M H.Three?dimensionalelastoplastic finite element simulation and fitting ofstress field in dam area of large power station[J].Chi?nese Journal of Rock Mechanics and Engineering,2002,21(9):1314?1318.(in Chinese)
袁风波,刘建,李蒲健,等.拉西瓦工程河谷区高地应力场反演与形成机理[J].岩土力学,2007,28(4):836?842.Yuan F B,Liu J,Li P J,et al.Back analysis andmultiple?factor influencing mechanism of highgeostressfield for river vally region of Laxiwa Hydropower Engi?neering[J].Rock and Soil Mechanics,2007,28(4):836?842.(in Chinese)
刘允芳,龚璧新,肖本职,等.广州抽水蓄能电站地下厂房区地应力场分析[J].长江科学院院报,1993,4(4):45?53.Liu Y F,Gong B X,Xiao B Z,et al.Analyses ofground stress field in underground excavation of Guang?zhou pumped storage power station[J].Journal of Yang?tze River Scientific Research Institute,1993,4(4):45?53.(in Chinese)
蔡美峰,熊顺成,乔兰,等.地应力场三维有限元拟合研究[J].中国矿业,1997,6(1):42?45.Cai M F,Xiong S C,Qiao L,et al.A regression tech?nique for determining in?situ stress field with 3?D FEanalysis[J].China Mining Magazine,1997,6(1):42?45.(in Chinese)
董志高,吴继敏,施志群,等.某水电站地下厂房区初始地应力场反演分析[J].河海大学学报(自然科学版),2003,5(9):543?546.Dong Z G,Wu J M,Shi Z Q,et al.Regression analy?sis of initial geostress for an underground power plant re?gion[J].Journal of Hohai University(Natural Scienc?es),2003,5(9):543?546.(in Chinese)
谢红强,肖明砾,何江达,等.锦屏水电站坝区初始地应力场反演分析[J].长江科学院院报,2008(5):50?54.Xie H Q,Xiao M L,He J D,et al.Regression analysisof initial geostress for dam region of Jinping hydropowerstation[J].Journal of Yangtze River Scientific ResearchInstitute,2008(5):50?54.(in Chinese)
何江达,谢红强,王启智,等.官地水电站坝址区初始地应力场反演分析[J].岩土工程学报,2009,31(2):166?171.He J D,Xie H Q,Wang Q Z,et al.Inversion analysisof initial geostress in dam site of Guandi HydropowerProject[J].Chinese Journal of Geotechnical Engineer?ing,2009,31(2):166?171.(in Chinese)
张建国,张强勇,杨文东,等.大岗山水电站坝区初始地应力场反演分析[J].岩土力学,2009,30(10):3071?3078.Zhang J G,Zhang Q Y,Yang W D,et al.Regressionanalysis of initial geostress field in dam zone of Dagang?shan hydropower station[J].Rock and Soil Mechanics,2009,30(10):3071?3078.(in Chinese)
张强勇,向文,于秀勇,等.双江口水电站地下厂房区初始地应力场反演分析[J].土木工程学报,2015,48(8):86?95.Zhang Q Y,Xiang W,Yu X Y,et al.Back analysis ofinitial geostress field for underground powerhouse zoneof Shuangjiangkou hydropower station[J].China CivilEngineering Journal,2015,48(8):86?95.(in Chinese)
张永兴.岩石力学[M].北京:中国建筑工业出版社,2008.Zhang Y X.Rock mechanics[M].Beijing:China Build?ing Industry Press,2008.(in Chinese)
曾冬霞.西藏怒江松塔水电站坝区岩饼及片帮形成机制研究[D].成都:成都理工大学,2014.Zeng D X.The study on core discing and spalling forma?tion mechanism of Songta Hydropower Station in NuRiver of Tibet[D].Chengdu:Chengdu Univerisity ofTechnology,2014.
黄润秋.中国西南岩石高边坡的主要特征及其演化[J].地球科学进展,2005,20(3):292?297.Huang R Q.Main characteristics of high rock slopes insouthwest China and their dynamic evolution[J].Advanc?es in Earth Science,2005,20(3):292?297.(in Chinese)
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