ELOBORATION OF CORRECTION FACTORS INCLUDED IN THE LOSS OF LABOR EXPENSES DURING RECONSTRUCTION

ISSN: 2181-3906 2025 International scientific journal «MODERN SCIENCE АND RESEARCH» VOLUME 4 / SPECIAL ISSUE/ UIF:8.2 / MODERNSCIENCE.UZ 11 ELOBORATION OF CORRECTION FACTORS INCLUDED IN THE LOSS OF LABOR EXPENSES DURING RECONSTRUCTION Karim Barovich Ganiev Professor, Samarkand university of architecture and civil engineering Phone: (+99890) 565-21-54, email: barovich [email protected] Iroda Nazarbaevna Salimova Associate Professor, Tashkent university of architecture and civil engineering. Phone: (+99890) 325-02-10, email : irodaxon 80@ mail .ru Lobar Yusupova Associate Professor, Tashkent university of architecture and civil engineering. Phone: (+99890) 322-90-64, email : lobarxon 88@ mail . ru Shakhnoza Khadjaeva Doctoral student. Tashkent university of architecture and civil engineering Phone: (+99890) 319-68-69, email : shakhnoz 17@ mail . ru Ganiyeva Feruza Karimovna director “NOU Intellekt Invest” [email protected] https://doi.org/10.5281/zenodo.17882373 Abstract. The degree of mechanization of installation work during reconstruction is characterized not only by a large proportion of labor costs, but also by the quality of the work performed. In order to reduce losses in construction organizations, it was proposed to create a differentiated regulatory framework in the form of correction factors for certain types of work during reconstruction, expansion and new construction on the territory of existing industrial enterprises. Keywords: type of object, reconstruction, technological equipment, light industry. Introduction. As is known, construction and installation work at existing enterprises is usually carried out in relatively cramped conditions due to the dense installation of developed systems of above-ground and underground communications at construction sites. In environments with harmful gases, excessive gas and dust emissions, high temperature exposure, in most cases, work inside existing workshops is carried out without stopping the main production processes. The existing standards provide for several types of conditions for normal, narrow, especially narrow, complex, very complex and harmful conditions of production work. Correction factors should be differentiated depending on the volume of work performed during reconstruction and the characteristics of their implementation. The shortcomings of the existing regulatory framework are to a certain extent due to the fact that during its development, the renewal of the fixed assets of existing industrial enterprises (new construction, expansion and reconstruction) was not taken into account. In the context of the reconstruction of existing enterprises, it is often not possible to introduce modern construction equipment, promising prefabricated structures and parts manufactured in factory conditions, comprehensive mechanization of construction work, and advanced methods of organizing construction production. ISSN: 2181-3906 2025 International scientific journal «MODERN SCIENCE АND RESEARCH» VOLUME 4 / SPECIAL ISSUE/ UIF:8.2 / MODERNSCIENCE.UZ 12 In construction contracting organizations engaged in the reconstruction of existing enterprises, the actual costs of production are higher than during the construction period. The level of mechanization of installation work during reconstruction is characterized not only by the high relative weight of labor costs, but also by the qualitative composition of the labor performed. In conditions of low mechanization of construction and installation work during the reconstruction of buildings, manual labor accounts for 75-85% of the total labor, while in the conditions of the construction of new buildings this figure is 40-45%. One of the important factors affecting the results of the construction organization's activities during the reconstruction of existing enterprises is the narrow conditions for the implementation of work. Table 1 Forms of basic funds and construction and installation work in the reconstruction of existing enterprises are divided into classes Forms of recovery of basic funds Description of production conditions of construction and assembly works 1. Construction of new facilities a) in the territory of an existing enterprise with developed transport and engineering communication networks and a narrow area for storage of materials. b) the same, in very narrow conditions for the storage of building materials. 2.Expansion of existing workshops and their reconstruction when the main production is completely stopped. a) in buildings free from equipment or other objects that interfere with the proper performance of work 3. Reconstruction of existing workshops without stopping the main activity of enterprises and objects under reconstruction. a) without stopping the production process b) the existing equipment and workspaces are too cramped c) when it is impossible to provide workplaces with materials normally g) in the presence of lifting and moving cranes, buckets belonging to the factory in the places of work d) in the presence of periodic traffic on railways within the trade e) when performing work in workshops belonging to the harmful category, including outdoor areas with an outdoor temperature of more than 40℃ As is known, the narrow conditions of the construction site are characterized by the specifics of the production of construction and installation works during the reconstruction of existing enterprises, which is associated with difficulties in organizing workplaces due to the limited area of work, low opportunities for using construction machinery, and inconveniences in ISSN: 2181-3906 2025 International scientific journal «MODERN SCIENCE АND RESEARCH» VOLUME 4 / SPECIAL ISSUE/ UIF:8.2 / MODERNSCIENCE.UZ 13 the movement of construction materials (existing building structures, technological equipment , engineering communications) to workplaces due to obstacles at the reconstruction site. [2,5] In addition, when the composition and objects of the volume of work to be performed are known, construction and installation work, which is considered relatively complex during reconstruction, is usually not profitable for construction organizations due to the loss of labor costs at reconstruction sites, and this is exactly what is reflected in our dissertation work. In order to reduce losses in construction organizations, it was proposed to create a differentiated regulatory base in the form of correction coefficients for certain types of work when carrying out reconstruction, expansion and new construction work on the territory of existing industrial enterprises. In the development of correction coefficients, the division of production conditions of construction and assembly work into classes was used for the restoration of the main funds and the reconstruction of existing enterprises. (See Table 1). The impact of the characteristics of the object being reconstructed on the results of the activities of construction organizations was assessed and the composition of construction and installation works according to the projects of light industry enterprises was studied. The type of object (new construction, expansion or reconstruction), production conditions and the composition of construction and installation works were determined by projects. According to the data obtained, the relative weight of construction and installation works changed significantly when new construction was carried out on the territory of existing industrial enterprises (Table 2). Table 2 Relative weight of the main types of construction and assembly works ( in % ) 1 No. Type of work New construction Expansion Reconstruction 1 2 3 4 5 6 7 8 9 10 11 Earthworks Foundation installation Building frame assembly Building a wall Curtain wall installation Installation, installation and strengthening of the beams Installation, installation and reinforcement of covers Construction of the floor Filling the window seats Laying floors Installation and assembly of 3.17 12.83 12.10 16.80 2.24 13.20 8.96 7.91 6.03 2.69 9.92 6.36 21.50 3.88 12.25 9.70 7.70 5.81 2.59 8.74 5.18 12.04 5.95 12.04 8.22 7.37 4.71 ISSN: 2181-3906 2025 International scientific journal «MODERN SCIENCE АND RESEARCH» VOLUME 4 / SPECIAL ISSUE/ UIF:8.2 / MODERNSCIENCE.UZ 14 12 13 14 15 stairs Decoration works Installation of metal structures Other work Demolition of the building 7.37 0.76 4.20 1.15 3.28 - 6.60 1.38 5.61 2.06 4.54 - 10.01 1.05 6.00 3.18 6.93 6.04 Correction factors included in labor costs for individual works in reconstruction, expansion and new construction should be determined by the ratio of standard labor costs to one unit of construction output (m2 , m3 and etc). Labor cost adjustment coefficients for specific types of construction and installation works determined by the following formula: here correction coefficients for some types of construction and assembly works during reconstruction according to the conditions of work execution ; labor costs accepted from the calculation of labor costs, standard labor costs for individual works ( m2 , m3 etc. ); 2 , m 3 , etc.) for one unit of separate types of construction and assembly works, calculated according to regulatory documents ; number of calculations according to the type of construction and assembly work under consideration Example 1. A construction organization selected 13 calculations for the installation of a monolithic screed when constructing a new facility on the territory of an existing enterprise (Table 3). It is necessary to determine the correction factor for the installation of a monolithic screed when constructing a new facility on the territory of an existing enterprise with developed transport and engineering communication networks and a narrow area for storing materials (see Table 3). Table 3 Standardized (I) and standard (II) costs for installing a monolithic overlay in the construction of a new facility Selection volume I II Selection volume I II 1 2 3 4 19.04 11.70 15.80 14.70 17.0 8.3 14.0 17.0 8 9 10 11 19.3 22.5 24.30 10.80 17.0 17.0 17.0 8.3 ISSN: 2181-3906 2025 International scientific journal «MODERN SCIENCE АND RESEARCH» VOLUME 4 / SPECIAL ISSUE/ UIF:8.2 / MODERNSCIENCE.UZ 15 5 6 7 16.80 11.80 18.60 8.3 8.3 17.0 12 13 12.90 9.70 8.3 8.3 the information given in Table 3 and the above-mentioned [1] formula : account - book if we do will be equal here The standard (correction) factor for installing monolithic partitions for condition 1a is equal to 1.3 for this case. Example 2. It is necessary to determine the correction factor for the same work performed at the facility being reconstructed. 12 calculations were selected for the installation of monolithic overlays when carrying out reconstruction work in relatively narrow conditions, which are characterized by the data presented in Table 4. As in the first example, it is necessary to determine the correction factor for the installation of monolithic overlays in relatively narrow conditions of the area where the work is carried out. Table 4 Standardized (I) and standard (II) labor costs for installing 1 m 3 of concrete monolithic pavement during reconstruction Selection volume I II Selection volume I II 1 2 3 4 5 6 26.2 9.6 10.5 17.9 19.5 8.6 20.0 8.3 8.3 14.0 14.0 6.3 7 8 9 10 11 12 18.8 18.1 18.4 17.2 19.3 15.4 14.0 17.0 14.0 14.0 14.0 8.3 (1) using the formula we will find, here: correction coefficient for the labor cost of monolithic media installation in t o r conditions. In the same way, adjustment coefficients for labor costs are determined for all types of construction and assembly works. Assessment of the accuracy of the obtained results is carried out using the methods of mathematical statistics. Conclusion. Thus, by determining the correction coefficients for labor costs for individual types of work, it is possible to proceed to calculating the correction coefficients for the types of facilities that are being newly built, expanded, and reconstructed. Correction coefficients for various objects are determined according to the following formula: this on the ground: separate of the kind objects for correction coefficient ; ISSN: 2181-3906 2025 International scientific journal «MODERN SCIENCE АND RESEARCH» VOLUME 4 / SPECIAL ISSUE/ UIF:8.2 / MODERNSCIENCE.UZ 16 – correction coefficient for certain types of construction and assembly works ; - the relative weight of certain types of construction and installation works during the reconstruction (see Table 2) ; – the estimated price of a separate object and type of work, respectively. The proposed method for calculating the correction coefficients will be used later in the reconstruction of industrial buildings, in solving the problems of flow organization and calendar planning. REFERENCES: 1. G Ганиев К.Б. Системотехника реконструкции промышленных предприятий. В кн: Системотехника – Под ред. А.А.Гусакова. – М.: Фонд “Новое тысячелетие”, 2002 – 768 с. 2. Ганиев К.Б. 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