تعداد نشریات | 161 |
تعداد شمارهها | 6,532 |
تعداد مقالات | 70,502 |
تعداد مشاهده مقاله | 124,119,031 |
تعداد دریافت فایل اصل مقاله | 97,225,287 |
ارزیابی بحران فرونشست زمین و پیشروی آب شور دریا در آبخوان دشت میناب | ||
اکوهیدرولوژی | ||
مقاله 18، دوره 6، شماره 1، فروردین 1398، صفحه 223-238 اصل مقاله (2.21 M) | ||
نوع مقاله: پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/ije.2019.270938.998 | ||
نویسندگان | ||
رضا جمور* 1؛ مهدی ایل بیگی2؛ مسعود مرسلی2 | ||
1کارشناس ارشد هیدروژئولوژی، کارشناس فنی شرکت مهندسین مشاور ریآب | ||
2دکترای هیدروژئولوژی، کارشناس فنی شرکت مهندسین مشاور ریآب | ||
چکیده | ||
در پژوهش حاضر براساس وضعیت تراز آب زیرزمینی منطقه طی دورۀ آماری 30 ساله (1365-1395) و همچنین بررسیهای صحرایی و حفر سه حلقه گمانه و بررسی وضعیت رسوبات در محل و آنالیز شیمیایی نمونههای برداشتشده از محل گمانهها، وضعیت فرونشست و نفوذ آب شور در دشت میناب بررسی شده است. بررسی تراز آب زیرزمینی منطقه نشان میدهد افت سطح آب در این آبخوان از سال 1380 شدت گرفته و بهطور متوسط سالانه حدود 46 سانتیمتر سطح آب افت کرده است. افت سطح آب در آبخوان موجب شده تا تراز سطح آب آبخوان نسبت به سطح دریا منفی شود و آب از سمت دریا به سمت آبخوان حرکت کند. بررسیهای ژئوتکنیکی در منطقه نشان میدهد علاوه بر افت سطح آب، وجود رسوبات تورمپذیر و انحلالپذیر در منطقه سبب افزایش شدت بروز عوارض فرونشست در سطح دشت شده است. درنهایت، منطقه از نظر خطر فرونشست به سه بخش کلی تقسیم شده است. در بخش ابتدایی آبخوان، فرونشست بیشتر از نوع تراکم لایههای آبرفتی است. در بخش مرکزی، فرونشست بیشتر از نوع گودال و ترک بوده و در بخش انتهایی آبخوان نیز احتمال ایجاد فرونشست کم است. بهطور کلی، این آبخوان همزمان با پدیدۀ فرونشست و پیشروی آب شور مواجه است و به برنامهریزی مناسب بهمنظور جلوگیری از نابودشدن آبخوان نیاز دارد. | ||
کلیدواژهها | ||
افت سطح آب زیرزمینی؛ خاکهای مسئلهدار؛ دشت میناب؛ فرونشست | ||
عنوان مقاله [English] | ||
Assessment of the Land Subsidence Crisis and the Advent of Salt Water in the Minab Plain Aquifer | ||
نویسندگان [English] | ||
Reza Jamour1؛ Mahdi Eilbeigy2؛ Masoud Morsali2 | ||
1Master of Hydrogeology, Rey Ab Consulting Engineers Company | ||
2PhD in Hydrogeology, Rey Ab Consulting Engineers Company | ||
چکیده [English] | ||
In this research, based on the status of groundwater level in the region during the statistical period of 30 years (1365-1395), as well as field studies and drilling three borehole, study of the status of sediments in place and the chemical analysis of samples taken from the boreholes, the status of subsidence and Penetration of salt water in Minab Plain has been studied. The study of the status of groundwater level in the area indicates that the water level drop in this aquifer has intensified since 1380, and it has fallen an average of about 46 centimeters in a year. The drop in water level in the aquifer has caused the aquifer level to be lower than the sea level, and practically water flows from the sea to the aquifer. Geotechnical studies in the area show that in addition to the drop of water surface, presence of inflammable and soluble sediments in the area has increased the severity of subsidence complications in the plain surface. Finally, the area is classified into three general sections in terms of risk of subsidence. In the primary part of the aquifer, subsidence is often in the type of alluvial layers condensed, in the central part, the subsidence is often in the form of a pit and a crack, and in the end section of aquifer probability of subsidence is low. In general, this aquifer is at the same time faced with the phenomenon of subsidence and the advent of salt water and requires proper planning to prevent the destruction of the aquifer. | ||
کلیدواژهها [English] | ||
groundwater drop, problematic soils, Minab plain, subsidence | ||
مراجع | ||
[1]. faunt C C, Sneed M, Traum j, Brandt J T. "Water availability and land subsidence in the Central Valley,California, USA," hydrogeol, 2016, pp. 675-684. [2]. Phien-wej, N, Giao, P.H, Nutalaya, P. "Land Subsidence In Bangkok, Thailand". Engineering Geology 2006, 82: 187– 201. [3]. Abbas Nejad A. "Review of the Situation and Issues of the Geology of the Environment of Rafsanjan Plain," in the Second Conference of the Geological Society of Iran, 1998.[Persian] [4]. Mahmoudpour M, Khamehchiyan M, Nikudel M R, Ghassemib M R. "Numerical simulation and prediction of regional land subsidence caused by groundwater exploitation in the southwest plain of Tehran, Iran.," Engineering Geology, 2016, vol. 201, pp. 6-28. [5]. Parhizkar S, Ajdary K, Kazemi G A, Emamgholizadeh S. "Predicting water level drawdown and assessment of land subsidence in Damghan aquifer by combining GMS and GEP models," Geopersia, 2015, pp. 63-80. [6]. Sharifi Kia M, Afzali A, Shayan S. "Extraction and evaluation of the effects of geomorphologic phenomena caused by subsidence in Damghan plain," Quantitative geomorphology studies, 2015, pp. 60-74.[Persian] [7]. Salehi R, Ghafouri M, Lashgipur Gh, Peasant M. "Investigation of subsidence of South Mahyar Plain Using Radar interferometry method," Journal of Irrigation and Water Engineering, 2013, pp. 47-57.[Persian] [8]. Al Khamis R, Karimi Nasab S, Ariana F. "Investigating the Effect of subsidence Due to Groundwater Drainage on the Damage of Pipeline," Water and Wastewater, 2006, pp. 77-88.[Persian] [9]. Entezam A, Ghasemi A, Yousefi T, Shafiei M. "Investigating the sinkholes and gaps of the Ayj plains of Fars province," Geological Survey & Mineral Exploration of Iran, 2015.[Persian] [10]. Entezam Soltani A, Ghasemi A. "The study of longitudinal gaps in the Golestan Autonomous Region," Geological Survey & Mineral Exploration of Iran, 2009.[Persian] [11]. Mirtamizdost M, Qassemi A. "Land subsidence survey and construction damage in Shahadat neighborhood of Ray", Geological Survey & Mineral Exploration of Iran, 2011. [Persian] [12]. Ghasemi A, Mirtamizdost M. "Investigating the phenomenon of longitudinal gaps in agricultural land of Moin Abad village, Varamin County," Geological Survey & Mineral Exploration of Iran, 2010.[Persian] [13]. Jiriyaei Sharahi H. "Maintenance of land subsidence with Radar Interference Technique in Minab Plain," Hormozgan University. Master's thesis, 2016. [Persian] [14]. Turkmani Tambaki H. "Land subsidence in the plain of Minab and its relation to the decline of groundwater level", Islamic Azad University, Bandar Abbas Branch, 2016.[Persian] [15]. Bemany Ahmadabad M, Ashjary J, Yaqubi A, malek Abbaslu A. "Study of the cause of subsidence in the Coastal aquifer of Minab Plain," 6th National Conference on Iranian Water Resources Management, 2016.[Persian] [16]. Bahrami S, Bazrafshan O. "Factors Affecting land subsidence in the Plain of Minab," 4th International Conference on Environmental Planning and Management, 2017.[Persian] [17]. Debiwand R, Shahnazari AS, Fazl Ovla R. "Simulation of saline water advancement on coastal aquifers in the Lahijan-Chaboksar area," University of Agricultural Sciences and Natural Resources, Sari, Sari, 2011. [Persian]. [18]. Jafari F, Eftekhari M. "Investigating the exchange of water and the influence of the saline water of Lake Urmia on neighboring aquifers" Water Management and Irrigation, Volume 3, Issue 1, pp. 29-47, 2013. [Persian] [19]. Rahimi H, Abbasi N. Geotechnical Engineering, Troublesome Soil, Tehran: Tehran University Press, 2014.[Persian] | ||
آمار تعداد مشاهده مقاله: 672 تعداد دریافت فایل اصل مقاله: 711 |