Changing the physical and chemical composition of the soil in the area of man-made impact in urban areas
Journal Title: Вісник Житомирського державного технологічного університету. Серія: Технічні науки - Year 2017, Vol 79, Issue 1
Abstract
The research analyzes the application of method of horizontal directional drilling (HDD) for the construction of engineering communication for Kyiv’s dense urban development. The main advantages of this modern technology of laying pipes of different diameter in complicated hydrogeological conditions are high accuracy and constant control of the trajectory, the possibility of work regardless of the season and work in a confined space without disturbing the surface structures that already exist. The most common depth of HDD in urban areas is about 2–3 m. As a result of intensive anthropogenic and technological impact in urban soils negative processes are developing that impair their strength characteristics. Soil decompression, violations of water-air and thermal balance, chemical and biological contamination lead to the surface deformations in the field of application of horizontal drilling. The negative aspect is that after filling of soil and repair of surface subsidence, these processes do not stop over time and continue to fracture surface. The aim of the research is to establish the causes of the continuation of active deformation processes of soil environment after the construction of engineering communication using the method of horizontal directional drilling. Most of sewage networks are within the impact zone of roads, so the research was conducted for soil near their proximity, samples were taken at various depths to allow man-made human impact on the deformation properties of soil foundations. For the qualitative and quantitative analysis of substances in soils, roentgen spectral analysis was used. It is a non-destructive method for determining element composition. To determine the oil content we used nuclear magnetic resonance spectroscopy.The study was conducted to determine the salt content of soils and their elemental composition depending on the depth and determination of petroleum products, which may reduce the carrying capacity of the soil and affect their deformation.
Authors and Affiliations
N. V. Zuievska, L. V. Shaidetska, K. O. Bulitko
Keywords
Related Articles
- EP ID EP255004
- DOI -
- Views 113
- Downloads 0
Determining the optimal loads on mechanism nodes using digital technology prototype
This article gives us important details about applying of a digital prototype for the purposes of reduction drive assembly testing. Working with digital prototype helps every user to make detailed virtual research, to es...
Mathematical model of heat exchange in the turnover of the surface grinding machine
A mathematical model of the heat transfer process in the coolant tank of a circular grinding machine is proposed. The sequence and dependencies for calculating the coolant temperature at the inlet to the pump of the cool...
Development of effective system parameters of borehole charges for the destruction of the mountain massif at the packing level
So far, little attention has been paid to the horizontal free surface of the ledge, or rock layer, which is located within the packing. However, this part of the block, which must also be effectively destroyed, in the va...
Automatization of Quantitative Structural Analysis of Composites
The work suggests the method of automatized quantitative analysis of composite structure that boasts of the shorter investigation hours and the higher accuracy as compared with quantitative metallographic method. The met...
Factorial coding with several checksums
The work offers and discusses in detail the methods of factorial coding with several checksums. These methods are used for solving complex problems of data integrity and cryptographic protection, and are aimed at reducin...