Construction and Building Technology

The aim of the research work. The aim of this dissertation is to study the causes of caving during drilling and the development of measures for quality completion of wells in the complicated caving areas.
Scientific novelty' of the research work is as follows:
experimentally obtained dependence of the strength of the rock on the number and speed of round-trip operations;
theoretically established the influence of "launch" of the pump pressure in the process of recovery of fluid circulation to the occurrence of fatigue stress on the rock;
theoretically determined that the teeth of roller cone bit under certain specific heaviness causes the ultimate stress in the rock that goes well beyond the loop, which is the reason for the reduction of its strength and collapse;
it was established that the roller bits cause deformation of rocks in the array, whereby the macro- and micro cracks arise where mud filtrate penetrates;
the method is developed for caving forecasting technique based on zones of geophysical studies and research drilled solids (sludge) by comparing the actual density of rocks with a density of normally compacted rock (theoretical density of the breed).

This article discusses the development of the geometric interpretation of composition in urban planning conditionally: - point, center, absence of a circular direction of development, (static composition); - line, row-develop in two opposite directions (dynamic composition);-four corners, grid - develop in several mutually transverse directions.

Ushbu maqolada zamonaviy shaharsozlikda ochiq jamoat maydonlarini shakllantirish yo’llari va bosqichlar to’g’risida so’z yuritilgan. Bundan tashqari ochiq jamoat muhitining hayotimizda qay darajada roll mavjud ekanligini ham ko’rishimiz mumkin.

Во всем мире проводятся научные исследования по совершенствованию технологии производства огне- и жаропрочных композиционных портландцементов и бетонов на их основе, в том числе по следующим приоритетным направлениям: разработка новых составов композиционных сырьевых смесей; экономия природных сырьевых ресурсов и применение вторичных сырьевых материалов; разработка энергоэкономичных технологий обжига клинкера; создание состава активных минеральных добавок, обеспечивающих ресурсосберегающую технологию производства портландцемента; разработка технологий производства новых составов добавочных, пуццолановых и цветных портландцементов [1]. 

this article presents fire protection methods for wooden structures used in the construction of buildings and structures, as well as the advantages and disadvantages of these methods. Also, a constructive method of fire protection for the rafter system used to construct the roof of a building is presented.

The main problems arising in maintaining the quality of design and construction of high-rise buildings, taking into account the possibility of introducing modern information systems, are considered, attention is paid to the peculiarities of improving the quality of work performed at all stages of the life cycle of an investment and construction project

The article studies the features of building information modeling at the stage of organizing construction.

В данной статье приведены перспективные и широко используемые в транспортном строительстве способы усиления земляного полотна с применением геотекстиля в качестве армирующей и разделяющей прослойки. Экспериментально были проведены работы по устройству покрытий из геотекстиля на железнодорожном участке Кокандской дистанции пути. Приведен анализ первичных результатов мониторинга состояния геометрии рельсовой колеи экспериментального участка, который показал хорошую эффективность использования геотекстиля для усиления основной площадки земляного полотна.

The seismic protection measures currently used are ineffective, and the calculation and design of buildings and structures. According to current standards, it does not at all exclude their destruction. Critical analysis provided seismic protection of buildings and proposes basic principles for their improvement. (The measures of seismic protection applied nowadays are ineffective, calculation and design of buildings and constructions for existing rules doesn't exclude their destruction at all. The critical analysis of seismic protection of buildings is provided and the basic principles of their improvement are offered.)

This article explores the application of neural networks in the evaluation of green buildings. With the increasing global focus on sustainability, green building practices have become crucial in mitigating environmental impact. Neural networks offer a promising avenue for analyzing various aspects of green buildings, including energy efficiency, material usage, and environmental footprint. The article discusses the importance of green building evaluation, introduces neural networks as a tool for analysis, and presents case studies highlighting the effectiveness of this approach.

The article discusses mobile applications that evaluate the smoothness of city roads. Recommendations have been developed for mobile applications that evaluate the smoothness of road surfaces.

The article is devoted to the reliability of hydraulic structures on subsiding soils. The authors analyzed the causes of failures and gave definitions on the feasibility of improving the reliability of subsidence foundations of irrigation hydraulic structures.

Приведена постановка задачи о продольном взаимодействии подземного магистрального трубопровода с окружающем его грунтом при действии низкочастотных сейсмических волн. Численным решением определены продольные напряжения в трубопроводе в зависимости от жесткости грунта. Установлена, что при больших жесткостях окружающего подземный трубопровод грунта, сейсмическая напряжения трубопровода существенно низкая. На основе этих инновационных результатов предлагается улучшения технологии строительства сейсмостойких подземных магистральных трубопроводов.

This article talks about the developed fire retardant flame retardant compounds for electrical wires and cables, that is, polymer materials developed on the basis of phosphorus, nitrogen and compounds of metal groups. In addition, information is provided that due to the influence of high temperature on these flame retardants, a reaction with oxygen occurs to form various oxidizing agents and water vapor, as a result of which the fire-resistant properties of the insulation of electrical wires and cables are improved.

In this article, the application of increasing the durability of modified asphalt concrete formed by the addition of polymers and surface-active structure-forming additives to asphalt pavements under the influence of the main parameters related to the increase in brittleness and deformation at low temperatures is shown. shown.

 

The aim of the research work is to determine dynamic stability of underground pipelines located in water saturated soil under the action of forces in the form of rapid or cyclic longitudinal loadings and the conditions of the pipeline occurs in an unstable state which will be the cause of its destruction.
Scientific novelty of the research work consists in the following: a method for calculating the stability of underground pipelines located in the water saturated soils using the kinematic interaction model in the system “pipe - soil” is developed; a calculation method for determining the displacements depending on time and also formulas of amplitude and frequency dependencies arc developed which suitable for their direct application; a method for solving the problem of the stability of a geometrically nonlinear underground pipeline located in the water saturated soil is developed for the general case when longitudinal and transverse displacements arc taken into account together; a method for the numerical calculation of stress-strain state of the underground pipeline with the mass at the end (manhole) using the kinematic interaction model in the system "pipeline-soil is developed.

В данной работе мы рассматриваем понятие на сколько долговечны строительные конструкций, выявляем основные положения теории и оцениваем способы повышения долговечности и живучесть в сооружениях. Долговечностью или живучестью называют такое свойство строительных конструкций зданий и сооружений, которые продолжают выполнять свои функции при повреждении или обрушении какой-либо его части. Методика проверки конструктивных элементов базируется на первичных отказах, которые не должны приводить к разрушению остальных элементов.

The article examines the development trends of multifunctional residential building complexes. The main stages of the development of multifunctional residential complexes are overlooked. At each stage, the main characteristic features and factors affecting the volume and planning structure of multifunctional residential complexes are revealed. In the process of analyzing the literature, the influence of the main socio-economic factors on the evolution  and formation of the complex structure has been determined. The relevance of the new structural residential education is indicated, as well as modern volumetric planning forms of the organization of the residential environment.

The article discusses the increase in wear resistance, adhesive strength and physical and mechanical properties of composite thermosetting epoxy polymer materials and coatings based on them for use on working surfaces that form the equipment of architectural and artistic reinforced concrete products

This article is devoted to the current problem of developing innovative activities in the building materials industry. The country's building materials industry has a significant resource potential, the use of which requires innovative development of the industry. With this in mind, the article proposes innovative directions for the development of the industry under consideration in order to better meet the needs of the economy in modern building materials.

Preparatory measures were proposed, which included the active introduction of energy-saving technologies, an economic incentive mechanism, methodological and scientific developments, industrial production of energy-saving equipment. Three of the proposed ways to save energy were noted. A number of general recommendations on energy saving and specific recommendations concerning individual energy saving systems were considered.

In this article, we can see the advantages of agiqtosh-mastic asphalt concrete coating and what features of it are given in depth to adapt it to the climatic conditions of Uzbekistan, and the effect of various stabilizing additives on the physical and mechanical properties of the mixture using the results of the study.

This article is written by Koytosh Wolfram, Ghallarol district, Jizzakh region The composition of cement is studied by adding secondary waste from the mine part of the study is to determine the amount of chemically bound water in cement talked about.

Today, adding basalt fiber to concrete and modifying it with chemical additives to ensure high durability and operational properties of concrete technology, the process of formation of cement stone structure, and its quality are highly effective.

The article presents the findings of theoretical investigations aimed at enhancing the energy efficiency of exterior brick walls. Furthermore, it introduces an energy- efficient structural solution for the arrangement of exterior walls during their reconstruction and major repairs.