Discussion on Application of Integrated Geophysical Technique in Underground Pipeline Detection

2021 ◽  
Keyword(s):  
Underground Pipeline ◽  
Geophysical Technique

Antiinterference determination of underground pipeline placement

2018 ◽  
Vol 2018 (46) ◽  
pp. 11-18
Author(s):  
R. M. Dzhala ◽  
◽  
B. Ya. Verbenets ◽  
B. I. Horon ◽  
O. I. Senyuk ◽  
...  
Keyword(s):  
Underground Pipeline

Simulation of non-stationary thermal fields from a buried thermally insulated pipeline and its diagnostics

2007 ◽  
Vol 5 ◽  
pp. 127-132
Author(s):  
N.A. Vaganova
Keyword(s):  
Thermal Imaging ◽  
Software Package ◽  
Clay Soil ◽  
Underground Pipeline ◽  
Main Pipeline ◽  
Factors Affecting ◽  
Thermal Fields ◽  
Thermal Imaging Equipment ◽  
Principal Possibility ◽  
Significant Factors

To detect damage to the underground pipeline, a mathematical model, allowing to take into account the most significant Factors affecting the distribution of temperature on the day surface. To implement this model, a software package has been developed and results of numerical calculations. With the help of these calculations, in particular, It is established that modern thermal imaging equipment has a principal possibility to determine an unauthorized frame in the main pipeline at a depth of two meters in clay soil.

Detection of concrete dam leakage using an integrated geophysical technique based on flow-field fitting method

2017 ◽  
Vol 140 ◽  
pp. 168-176 ◽  
Author(s):  
Qianwei Dai ◽  
Fangpeng Lin ◽  
Xiaoping Wang ◽  
Deshan Feng ◽  
Richard C. Bayless
Keyword(s):  
Flow Field ◽  
Concrete Dam ◽  
Fitting Method ◽  
Geophysical Technique ◽  
Dam Leakage

Research of throwing areols of underground pipeline in permafrost

2021 ◽  
pp. 21-30
Author(s):  
T. S. Sultanmagomedov ◽  
◽  
R. N. Bakhtizin ◽  
S. M. Sultanmagomedov ◽  
T. M. Halikov ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Experimental Study ◽  
Finite Element ◽  
Strain State ◽  
Operating Temperature ◽  
Operating Conditions ◽  
Loss Of Stability ◽  
Underground Pipeline ◽  
The Finite Element Method ◽  
Permafrost Thawing

Study is due to the possibility of loss of stability of the pipeline in the process of pumping a product with a positive operating temperature and the formation of thawing halos. The article presents the ways of solving the thermomechanical problem of pipeline displacement due to thawing. The rate of formation of a thawing halo is investigated depending on the initial temperatures of the soil and the pumped product. The developed monitoring system makes it possible to study the rate of occurrence of thawing halos in the process of pumping the product. An experimental study on the formation of thawing halos around the pipeline was carried out on an experimental model. A thermophysical comparative calculation of temperatures around the pipeline on a model by the finite element method has been carried out. Keywords: underground pipeline; permafrost; thawing halo; monitoring; operating conditions; stress–strain state.

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