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Experimental data on mechanical aperture, roughness, and hydraulic aperture evolution in fractured rock during biomineralization treatment
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| Type: | Resource | |
| Storage: | The size of this resource is 418.5 MB | |
| Created: | Jun 18, 2026 at 10:01 a.m. (UTC) | |
| Last updated: | Jun 18, 2026 at 12:14 p.m. (UTC) | |
| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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| Views: | 118 |
| Downloads: | 22 |
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Abstract
This dataset supports the findings in the manuscript "Biomineralization-induced regime transition in fracture hydraulic properties: Competing effects of mechanical closure and roughness evolution" (Deng et al., submitted to Water Resources Research). The data were collected from seven cycles of biomineralization treatment experiments conducted on three artificial single-fracture models (M1, M2, and M3) with different initial apertures and surface roughness conditions. The dataset includes: (1) raw grayscale images of CaCO3 precipitation for all samples across cycles 0–7; (2) measured steady-state inlet-outlet pressure difference (ΔP) used to calculate hydraulic aperture (bₕ); (3) processed mechanical aperture (bₘ) distributions, roughness parameters including the Joint Roughness Coefficient (JRC) and the Root Mean Square (RMS) slope of aperture profiles (Z2_b), and hydraulic aperture (bₕ) values for each treatment cycle; (4) calibration and validation data for the grayscale-thickness inversion relationship, with prediction accuracy evaluated by the Root Mean Square Error (RMSE); and (5) Python scripts for data processing, roughness calculation, and figure generation. The data are organized into folders corresponding to each analysis type; a README file is included to provide detailed descriptions of file naming conventions and folder structures. These data can be reused for benchmarking numerical models of fracture permeability evolution, validating biomineralization-induced sealing mechanisms, or comparing with other fracture flow experiments. Users are requested to cite the related manuscript and this dataset when using the data.
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Content
README.txt
Dataset for Deng et al. (2026) - WRR Submission Overview This dataset supports the findings in the manuscript "Biomineralization-induced regime transition in fracture hydraulic properties: Competing effects of mechanical closure and roughness evolution" (Deng et al., submitted to Water Resources Research). All data and codes required to reproduce the figures and tables are provided here. Full Name C Variable C Unit Mechanical aperture C bm C mm Hydraulic aperture C bh C m Joint roughness coefficient C JRC C dimensionless RMS slope of aperture profiles C Z2_b C dimensionless Pressure difference C P C Pa CaCO3 precipitation thickness C Z C mm Root Mean Square Error C RMSE C mm File Description bacterial_accumulation_images C Figure 8 data and code from section 4.3.2. calibration_validation C Table 2 data, including fitted data , RMSE and code. hydraulic_aperturebh C Hydraulic aperture calculation data obtained using Eq. 6, and are shown in Figures 7 and 9 of the manuscript. image C Original images (for all samples M1CM3 across cycles 0C7) are used to track the spatial evolution of precipitation and support Fig. 4 (M2 as representative) and Figs. S1CS2 (M1 and M3 in Supporting Information). Processed images (converted to precipitation thickness maps via grayscale-thickness inversion) support Fig. 2 (thickness maps with corresponding grayscale images for M1CM3). initial_fracture_geometry C Original single-fracture data generated by SynFrac mechanical_aperture_roughness C Contains processed data for mechanical aperture (bm) distributions, roughness parameters (JRC and Z2_b), and their evolution across treatment cycles. These data support Fig. 5 (aperture frequency distributions), Fig. 6 (roughness evolution), and Fig. 9 (comparison of bm and bh). The data were derived from Eq. (1) inversion of precipitation thickness, followed by statistical analysis of aperture distribution and roughness calculation. precipitation_thickness C After the experiment, the thickness of CaCO3 was measured by scanning, and shown in Figure 2. pressure_difference C The inlet-outlet pressure difference (P) was monitored throughout all treatment cycles and is provided in the raw data folder.
Credits
Funding Agencies
This resource was created using funding from the following sources:
| Agency Name | Award Title | Award Number |
|---|---|---|
| National Natural Science Foundation of China | None | 42477066 |
| National Science and Technology Major Project of China | jing-Jin-Ji Regional Integrated Environmental Improvement | 2026ZD1210500 |
| CTRP Open Fund of Radiation Protection Laboratories | None | ZFYFSHJ-2024001 |
How to Cite
This resource is shared under the Creative Commons Attribution CC BY.
http://creativecommons.org/licenses/by/4.0/
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