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Ushbu maqolada filtratsiya jarayonining gruntli to‘g‘onlarga ta’siri hamda ushbu holatlarning suv ombori ish rejimiga bog‘liqligi bo‘yicha izlanishlar tahlili keltirilgan. Hozirgi kunda O‘zbekistonda 70 ga yaqin suv omborlari mavjud bo‘lib, ulardan qariyb 95 foizi gruntli to‘g‘onlar orqali boshqariladi. Mazkur suv omborlaridagi asosiy dolzarb muammolardan biri to‘g‘on tanasidan bo‘ladigan filtratsiya jarayoni hisoblanadi. Albatta, ushbu gidrotexnik inshootlardan foydalanish davrida to‘g‘on tanasidagi filtratsiya depressiya egri chizig‘ini aniq yuritish va ularning to‘g‘on tanasiga ta’sirini o‘rganish alohida ahamiyat kasb etadi. Ushbu jarayonni o‘rganish maqsadida tabiiy dala tadqiqotlari olib borilgan va tadqiqot obyektining ko‘p yillik ma’lumotlari statistik tahlil qilingan. Chimqo‘rg‘on suv ombori to‘g‘oni tanasidan bo‘ladigan filtratsiya depressiya egri chizig‘i o‘zgarishini aniqlashda suv ombori to‘g‘onining PK-40 dagi p’ezometrlarida o‘lchangan (2015-yildan 2023-yilgacha) ma’lumotlardan foydalanilgan. Tabiiy dala tadqiqotlarida olingan natijalar, zamonaviy axborot texnologiyalaridan biri hisoblangan “Midas GTS NX” dasturida qayta ishlangan hamda dastur va dala tadqiqotlarida aniqlangan natijalar o‘zaro taqqoslangan. Tabiiy dala tadqiqotlari va Midas GTS NX dasturida olingan natijalar taqqoslanganda, suv ombori to‘g‘onidan bo‘layotgan filtratsiya jarayoni jadalligiga, asosan, inshoot zaminidan bo‘layotgan filtratsiya suvlari ta’sir ko‘rsatayotgani ma’lum bo‘ldi. Bunga sabab to‘g‘onning PK-40 piketi suv ombori loyihasi orqali tekshirilganda, oldingi daryo o‘zaniga to‘g‘ri kelishidir.

  • Internet havola
  • DOI
  • UzSCI tizimida yaratilgan sana 28-10-2024
  • O'qishlar soni 34
  • Nashr sanasi 22-04-2024
  • Asosiy tilO'zbek
  • Sahifalar121-131
Ўзбек

Ushbu maqolada filtratsiya jarayonining gruntli to‘g‘onlarga ta’siri hamda ushbu holatlarning suv ombori ish rejimiga bog‘liqligi bo‘yicha izlanishlar tahlili keltirilgan. Hozirgi kunda O‘zbekistonda 70 ga yaqin suv omborlari mavjud bo‘lib, ulardan qariyb 95 foizi gruntli to‘g‘onlar orqali boshqariladi. Mazkur suv omborlaridagi asosiy dolzarb muammolardan biri to‘g‘on tanasidan bo‘ladigan filtratsiya jarayoni hisoblanadi. Albatta, ushbu gidrotexnik inshootlardan foydalanish davrida to‘g‘on tanasidagi filtratsiya depressiya egri chizig‘ini aniq yuritish va ularning to‘g‘on tanasiga ta’sirini o‘rganish alohida ahamiyat kasb etadi. Ushbu jarayonni o‘rganish maqsadida tabiiy dala tadqiqotlari olib borilgan va tadqiqot obyektining ko‘p yillik ma’lumotlari statistik tahlil qilingan. Chimqo‘rg‘on suv ombori to‘g‘oni tanasidan bo‘ladigan filtratsiya depressiya egri chizig‘i o‘zgarishini aniqlashda suv ombori to‘g‘onining PK-40 dagi p’ezometrlarida o‘lchangan (2015-yildan 2023-yilgacha) ma’lumotlardan foydalanilgan. Tabiiy dala tadqiqotlarida olingan natijalar, zamonaviy axborot texnologiyalaridan biri hisoblangan “Midas GTS NX” dasturida qayta ishlangan hamda dastur va dala tadqiqotlarida aniqlangan natijalar o‘zaro taqqoslangan. Tabiiy dala tadqiqotlari va Midas GTS NX dasturida olingan natijalar taqqoslanganda, suv ombori to‘g‘onidan bo‘layotgan filtratsiya jarayoni jadalligiga, asosan, inshoot zaminidan bo‘layotgan filtratsiya suvlari ta’sir ko‘rsatayotgani ma’lum bo‘ldi. Bunga sabab to‘g‘onning PK-40 piketi suv ombori loyihasi orqali tekshirilganda, oldingi daryo o‘zaniga to‘g‘ri kelishidir.

Русский

В данной статье представлен анализ влияния процесса фильтрации на грунтовые плотины и влияние режима работы водоёма на этот процесс. В настоящее время в Узбекистане насчитывается около 70 водохранилищ, около 95 % из них оберегаются земляными дамбами. Одной из основных актуальных проблем на этих водохранилищах является процесс фильтрации из тела плотины. Разумеется, в период эксплуатации этих гидротехнических сооружений особое значение имеет точное выдерживание кривой фильтрационных депрессий в теле плотины и изучение их влияния на тело плотины. С целью изучения этого процесса были проведены натурные полевые исследования и статистически проанализированы многолетние данные по объекту исследования. Для определения изменения кривой депрессии фильтрации из тела плотины Чимкурганского водохранилища использованы данные измерений плотины водохранилища (с 2015 по 2023 гг.) на пьезометрах ПК-40. Результаты, полученные при натурных исследованиях, были обработаны в программе Midas GTS NX, которая является одной из современных информационных технологий, и проведено их сравнение. Сравнивая результаты, полученные при натурно-полевых исследованиях, и результаты, полученные в программе Midas GTS NX, установлено, что на скорость процесса фильтрации из тела плотины водохранилища в основном влияет фильтрационная вода с основания сооружения. Причина этого в том, что пикет плотины ПК-40 при проверке по проекту водохранилища совпадает с предыдущим руслом реки.

English

The article presents a review of studies into the influence of filtration processes on earthen dams and dependence of these cases on the operating mode of reservoirs. Nowadays, there are about 70 reservoirs in Uzbekistan, about 95% of which are controlled by earthen dams. One of the main current problems in these reservoirs is a process of filtration from the dam body. Of course, during operation of these hydraulic structures, it is of particular importance to accurately maintain the curve of filtration depressions in the dam body and study their effect on it. To explore this process, full-scale field studies were carried out and long-term data of the research object were statistically analyzed. To determine the change in the filtration depression curve from the body of the Сhimkurgan reservoir dam, measurements were made (from 2015 to 2023) using data from piezometers of the PK-40 reservoir dam. Findings retrieved from the field studies were processed by means of the Midas GTS NX program, a modern information technology, and the results achieved by the program were further compared with those retrieved from the field studies. The comparison showed that the rate of the filtration process from the reservoir dam is mainly affected by filtration waters from the floor of the structure. This is explained by the picket of the PK-40 dam, when checked according to the reservoir design, it coincides with the previous river bed.

Havola nomi
1 Abbas, J. K. (2017). Determination of flow through homogeneous earth dams with triangular toe filter. Tikrit Journal of Engineering Sciences, 24 (1), 81–88.
2 Arifjanov, A. M., Samiyev, L. N., & Ulashov, Q. Ch. (2023). Suv ombori kosasida hosil bo‘lgan to‘lqinlarning qirg‘oq qiyaligiga ta’sirini baholash [Assessment of the impact of waves generated in the reservoir basin on the coastal slope]. (In Uzbek). Irrigation and land reclamation, 3 (33), 26–30. Tashkent.
3 Arifjanov, A. M., Samiyev, L. N., Ibragimova, Z., & Ulashov, Q. Ch. (2023). Effects of water level changes in reservoir basin on coastal erosion. Proceedings of the V International Scientific Conference “Construction Mechanics, Hydraulics and Water Resources Engineering” (CONMECHYDRO – 2023)
4 Arifjanov, A., Gapparov, F., Apakxujaeva, T., & Xoshimov, S. (2020). Determination of reduction of useful volume in water reservoirs due to sedimentation. IOP ConferenceSeries: Earth and Environmental Sciencethis, 614 (1), 012079.
5 Arifjanov, A., Samiev, L., Khaydarov, S., Kasimov, T., & Juraev, S. (2022). Increasing Efficient Use of Water Storage Pools. Proceedings of the AIP Conference, 2432, 040003.
6 Çilingir, H. (2007). Toprak Dolgu barajların gövdelerindeki sızmaların sonlu elemanlar yöntemi ile incelenmesi: Büyükçekmece barajı uygulaması [Examination of leaks in the bodies of Earth Fill dams using the finite element method: Büyükçekmece dam application]. (In Turkish). (Master thesis). Turkey: Istanbul Technical University.
7 Fakhari, A., & Ghanbari, A. (2013). A simple method for calculating the seepage from earth dams with clay core. J. of Geo-Engg., 8 (1), 27–32.
8 Gapparov, F., Nazaraliev, D., & Eshkuvatov, Q. (2020). Assessment of Chimkurgan water reservoir sedimentation processes. Proceedings of the International Scientific Conference “Construction Mechanics, Hydraulics and Water Resources Engineering” (CONMECHYDRO – 2020). doi:10.1088/1757-899X/883/1/012039
9 Khassaf, S. I., & Madhloom A. M. (2017). Efect of impervious core on seepage through zoned earth dam (case study: Khassa Chai dam). Int J Sci Eng Res., 8 (2), 1053–1064.
10 Kheiri, G., Javdanian, H., & Shams, G. (2020). A numerical modeling study on the seepage under embankment dams. Modeling Earth Systems and Environment, 6, 1075–1087.
11 Rafıezadeh, K., & Ataıe-Ashtiani, B. (2013). Seepage analysis in multi-domain general anisotropic media by three-dimensional boundary elements. Engineering Analysis with Boundary Elements, 37, 527–541.
12 Salmasi, F., Nouri, M., & Abraham, J. (2020). Upstream cutoff and downstream filters to control of seepage in dams. Water Resources Management, 34, 4271–4288.
13 Samiev, L., Khamidov, A., Ungalov, A., & Mamatisaev, G. (2023). Hydrological analysis of livestock water reservoir using GIS technologie. E3S Web of Conferences, 371, 01030.
14 Samiev, L., Rakhimov, Q., Ibragimova, Z., & Allayorov, D. (2021). To the determination of non-washable speed in the channels bed consisting of disconnected soils. E3S Web of Conferences, 264. doi:10.1051/ e3sconf/202126403011
15 Samiyev, L., Allayorov, D., Atakulov, D., & Babajanov, F. (2020). The influence of sedimentation reservoir on hydraulic parameters of irrigation channels. IOP Conference Series: Materials Science and Engineering.
16 Sazzad, M. M., & Alam, Sh. (2020, September – December). Seepage analysis of earth dam considering horizontal filter by FEM. Journal of Water Resources and Pollution Studies, 5 (3).
17 Sazzad, M. M., & Islam, M. M. (2019). Effect of width, length and position of cutoff wall on the seepage characteristics of earth dam. J. of Geotech. Stud., 4 (1), 1–11.
18 Xoshimov, S., Atakulov, D., Yalgashev, O., Komilov, S., & Boykulov, J. (2023). Evaluation of sedimentation of water reservoirs with modern technologies” E3S Web of Conferences, 365, 03033.
19 Zewdu, A., (2019). Seepage and slope stability analysis of earthen dam: a case study of Koga Dam. Ethiopia, WNOFNS, 26, 191–217.
20 Zhang, W., Dai, B., Liu, Z., & Zhou, C. (2017). Unconfined seepage analysis using moving kriging mesh-free method with Monte Carlo integration. Transport in Porous Media, 116 (1), 163–180.
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