Thermal Behavior in Cross-Passage Construction during Artificial Ground Freezing: Case of Harbin Metro Line

Li, Zhiming; Chen, Jian; Sugimoto, M.; Mao, Chaojun

doi:10.1061/(asce)cr.1943-5495.0000221

Cited by 11 publications

(7 citation statements)

References 28 publications

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“…This error is comparable with the values of the discrep-ancy functional (10), which follows from Figures 5-7, and therefore can lead to a significant change of the functional minimum position. If the actual position of the TC borehole appears closer to the freezing contour than in the mathematical model with incorrectly set displacements of boreholes, then the actual thermal effect of freezing pipes on a TC borehole will occur faster than in the model and will lead to overestimation of thermal conductivity of the soil, which happened at the initial times (as shown in Figures 5-7).…”

Section: Theoretical Interpretationsupporting

confidence: 81%

“…The obtained dependencies of the change in the functional (10) position and form were also analyzed qualitatively using a simplified one-dimensional heat balance model. For simplicity, it was assumed that the soil had a sharp phase boundary γ separating the frozen and unfrozen zones.…”

Section: Theoretical Interpretationmentioning

confidence: 99%

“…When carrying out a numerical estimate, it was assumed that R corresponds to the halfthickness of the FW 0:5E. The temporary change of the position of the functional minimum (10) during the ice growing stage can have another possible explanation associated with the error in the data on the position of the boreholes. We conducted an additional sensitivity analysis of the solution to the temperature measurement error introduced through the error of the borehole deviation survey.…”

Section: Theoretical Interpretationmentioning

confidence: 99%

“…Conducting temperature surveys in temperature control (TC) boreholes is currently the main and most informative method of analyzing the actual FW properties. This experimental method is used for the con-struction of mine shafts and underground tunnels, both in Russia [5][6][7] and in other countries [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Features of Adjusting the Frozen Soil Properties Using Borehole Temperature Measurements

Семин

Levin

Bogomyagkov

et al. 2021

Modelling and Simulation in Engineering

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The paper examines the theoretical issues of using borehole temperature survey data to control a frozen wall formed around the sinking mine shafts of the Nezhinsk mining and processing plant potash mine. We consider adjusting the parameters of the mathematical model of the frozen soil based on temperature measurements in boreholes. Adjustment of the parameters of the mathematical model (thermophysical properties of the soil) is usually carried out by minimizing the discrepancy functional between the experimentally measured and model temperatures in the temperature control boreholes. An important question about the form of this functional and the existence of minima remained after the previous studies. The study aimed at this question included analysis of heat transfer in two horizontal layers (sand and chalk) for two shafts under construction using artificial ground freezing. It was shown that the discrepancy functional minimum under certain conditions moves over time or is nonunique. This phenomenon results in ambiguity in adjusting the mathematical model parameters in the frozen soil to fit the borehole temperature survey data. At the stage of the frozen wall growth, the effective thermal conductivity in the frozen zone can be determined ambiguously from the temperature measurements in the boreholes—its value can change over time. At the stage of maintaining the frozen wall, the solution turns out to be dependent on the ratio of effective thermal conductivities in the frozen and unfrozen zones.

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Section: Theoretical Interpretationsupporting

confidence: 81%

Section: Theoretical Interpretationmentioning

confidence: 99%

Section: Theoretical Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Features of Adjusting the Frozen Soil Properties Using Borehole Temperature Measurements

Семин

Levin

Bogomyagkov

et al. 2021

Modelling and Simulation in Engineering

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“…A large number of applications in civil engineering relate to groundwater flow, such as slope stability [21][22][23]; surface/subsurface soil erosion and sediment transport [24][25][26]; dam safety, including piping under and through dams [27][28][29][30][31][32]; groundwater contamination [33][34][35][36]; stability of artificially freezing ground [37,38]; sustainable management of water resources [39][40][41][42]; interaction between groundwater and surface water [43,44]; and karst collapse pillars [45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Seepage Velocity: Large Scale Mapping and the Evaluation of Two Different Aquifer Conditions (Silty Clayey and Sandy)

et al. 2020

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Seepage velocity is a very important criterion in infrastructure construction. The planning of numerous large infrastructure projects requires the mapping of seepage velocity at a large scale. To date, however, no reliable approach exists to determine seepage velocity at such a scale. This paper presents a tool within ArcMap/Geographic Information System (GIS) software that can be used to map the seepage velocity at a large scale. The resultant maps include both direction and magnitude mapping of the seepage velocity. To verify the GIS tool, this study considered two types of aquifer conditions in two regions in Iraq: silty clayey (Babylon province) and sandy (Dibdibba in Karbala province). The results indicate that, for Babylon province, the groundwater flows from the northwest to southeast with a seepage velocity no more than 0.19 m/d; for the Dibdibba region, the groundwater flows from the west to the east with a seepage velocity not exceeding 0.27 m/d. The effectiveness of the presented tool in depicting the seepage velocity was thus demonstrated. The accuracy of the resultant maps depends on the resolution of the four essential maps (groundwater elevation head, effective porosity, saturated thickness, and transmissivity) and locations of wells that are used to collect the data.

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Thermal and pore pressure gradient–dependent deformation and fracture behavior of saturated soils subjected to freeze–thaw

Zhao

Zhou

et al. 2022

Bull Eng Geol Environ

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Thermal Behavior in Cross-Passage Construction during Artificial Ground Freezing: Case of Harbin Metro Line

Cited by 11 publications

References 28 publications

Features of Adjusting the Frozen Soil Properties Using Borehole Temperature Measurements

Features of Adjusting the Frozen Soil Properties Using Borehole Temperature Measurements

Seepage Velocity: Large Scale Mapping and the Evaluation of Two Different Aquifer Conditions (Silty Clayey and Sandy)

Thermal and pore pressure gradient–dependent deformation and fracture behavior of saturated soils subjected to freeze–thaw

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