Relevance. As part of the implementation of the Federal Law No. 117-FZ “On the Safety of Hydraulic Structures”, it is necessary to continuously monitor the state of hydraulic structures and related facilities by equipping with control and measuring instruments. The development of modern computer complexes allows us to carry out and predict the state of objects by combining computational research and field observations. The work is aimed at organizing a comprehensive assessment of the state of the HPS and ensuring the safety of existing and projected mutually influential complexes. Aims of research. Improving the safety of the operated (under construction) complex of interfering hydraulic structures. Assessment of sufficient and highquality engineering and repair work carried out on the HPS. Development of recommendations for improving the efficiency of construction of new and modernization of operated hydropower facilities. HPS on the example of the Zagorsk HPS. Methods. Representation of the interaction ideology of various software systems of mathematical modeling, using control and measuring instruments data for calibration and verification of mathematical models. Results. The structure of the HSC calculation module was updated, systematization of the calculation models was carried out, interaction and transfer of the initial data to the calculation module of the software and hardware complex was revealed. The implementation of scientific research is aimed at improving the safety of the complex hydraulic structures.

This paper describes the complex of geotechnical researches realized for the reconstruction of the gydroscheme on the creek Pevek. The estimation of the hydraulic facilities‘s state was realized on the base of researches from different years. The last complex of geotechnical surveys was conducted by authors in 2012 and include cryogenic, geophysical, geodesic and others geotechnical researches.

Всероссийский научно-исследовательский институт гидротехники имени Б.Е. Веденеева» (ВНИИГ им. Б.Е. Веденеева), 195220, г. Санкт-Петербург, ул. Гжатская, д. 21 Предмет исследования: кольматирование сквозных трещин в глиноцементобетонной диафрагме грунтовой плотины на участке временных перемычек строительного котлована основных сооружений Нижне-Бурейской ГЭС. Цели: определение возможности применения имеющегося в местных карьерах песчаного материала в качестве контактного слоя, обеспечивающего «залечивание» трещин в случае их образования в теле глиноцементобетонной диафрагмы русловой плотины Нижне-Бурейской ГЭС в процессе эксплуатации. Материалы и методы: полевые эксперименты проводились на поперечной перемычке строительного котлована основных сооружений Нижне-Бурейской ГЭС. Проведение опытов заключалось в замыве искусственных трещин песчаным материалом организованных в глиноцементобетонных сваях временных перемычек, для чего в теле сваи с помощью бурения создавалась цилиндрическая полость для накопления песчаного материала. В нижней части сваи из шурфа создавались искусственные отверстия для замыва. Результаты: экспериментально подтверждено, что при использовании песков карьера № 5 сквозные трещины в диафрагме плотины Нижне-Бурейской ГЭС будут на всю глубину кольматироваться грунтом залечивающего слоя, расположенного перед верховой гранью диафрагмы. Песок карьера № 5 может быть использован в качестве материала контактного слоя, обеспечивающего самозалечивание трещин в ГЦБ диафрагме грунтовой плотины, при этом необходимо контролировать рекомендуемый гранулометрический состав песков и не допускать наличия комков глинистых грунтов. Выводы: в полевых условиях получены значения гидравлических градиентов, при которых происходит «залечивание» трещин в глиноцементобетонной диафрагме грунтовой плотины. Уточнены требования к гранулометрическому составу контактного слоя в конструкции грунтовой плотины. Разработаны рекомендации по контролю качества грунта при укладке контактного слоя грунтовой плотины. К Л ЮЧ Е ВЫ Е СЛО ВА: грунтовая плотина, противофильтрационный элемент, буросекущие сваи, глиноцементобетон, самозалечивание трещин, гидравлический градиент Д Л Я Ц И Т И Р О ВА Н И Я: Котлов О.Н., Орищук Р.Н., Гуняшова Ф.И. Полевые исследования по самозалечиванию трещин в противофильтрационном элементе из буросекущих глиноцементобетонных свай // Вестник МГСУ. 2018.The article contains a description of the methodology and the results of field experiments on self-healing in the impervious element of bored piles filled with clay-cement concrete at the site of temporary shoring of excavation pit of the main structures of Nizhne-Bureyskaya HPP. The results of the experiments allowed us to determine the suitability of local sand from the quarry №5 for self-healing of cracks. Recommendations for quality control of the sandy soil, placed into the transition zones of the dam, were developed. Subject: field studies of colmatization of through cracks in clay-cement concrete diaphragm of earth dams at the site of temporary shoring of ex...

Introduction. Storage facilities, designated for the toxic production waste and located on the premises of the former Sredne-Volzhsky chemical plant in Chapayevsk, Samara Region, are sources of negative environmental impacts. The situation is aggravated by the lack of a reliable seepage prevention circuit at toxic waste storage facilities, enclosed by natural impermeable layers. The purpose of the study is to substantiate the choice of the optimal base for seepage prevention curtains along the perimeter of toxic waste storage facilities by clarifying the filtration characteristics of impervious soils using the interpretation of special experimental filtration works, followed by the testing of the effectiveness of engineering solutions using the developed geological filtration model. Materials and methods. Processing Modflow is the software designed for the 3D filtration and pollutant transport modeling. The input data for a geological filtration model included technical reports on engineering surveys conducted in 2013 on the premises of the former Sredne-Volzhsky chemical plant, as well as the results of special experimental and filtration works and plant site level observations interpreted using the ANSDIMAT software. Results. The filtration characteristics of the clay rocks of Upper Quaternary deposits were clarified as a result of the interpretation of special experimental and filtration works by the ANSDIMAT software through graphic analytical methods, and the application of a numerical model by the Processing Modflow software to imitate these works. The resulting characteristics confirmed the usability of this engineering geological element as the base for the designed anti-seepage curtains. The Processing Modflow software was applied to confirm the high efficiency of the filtration prevention circuit, which allowed to significantly reduce inflows in toxic waste storage facilities in the course of their reclamation. Conclusions. In the process of reclamation of the area, occupied by the former Sredne-Volzhsky chemical plant, the option, recommended for implementation, is the installation of anti-seepage curtains around the perimeter of the toxic waste storage facilities for the circuit to be enclosed by the clay rock of the Upper Quaternary deposits. The proposed engineering solution will allow the highly toxic filtrate to be concentrated inside the toxic waste storage facilities to prevent its penetration into the environment.