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Lei Ma

Hefei University of Technology

193 Tunxi Rd

Baohe

Hefei

China

  • Hefei University of Technology

SCHOLARLY PAPERS

13

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477

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Scholarly Papers (13)

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1.

Characterization and Prediction of Non-Darcy Flow in Rough Fractures: Effects of Average Aperture and Heterogeneity

Number of pages: 51 Posted: 12 Nov 2025
Jiazhong Qian, Shang Yuan, Yong Liu, Yunhai Fang, Lei Ma, Haichun Ma and Haoming Zhang
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 57 (1,010,164)

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Rough fractures, Non-Darcy flow, Nonlinear flow, Geometric parameters, Nonlinear coefficient β

2.

Study on the Mechanism of Flow Around the Regular and Irregular Cylinders

Number of pages: 41 Posted: 28 Dec 2022
Haichun Ma, Xianfa wei, Jiazhong Qian, Jingping Wang, Qiankun Luo and Lei Ma
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 49 (1,074,648)

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Regular cylinder, irregular cylinder, flow state, drag coefficient, lift coefficient

3.

Estimating Permeability of Rock Fracture Based on Geometrical Aperture Using Geoelectrical Monitoring

Number of pages: 40 Posted: 20 Jun 2024
Yongshuai Yan, Lei Ma, Jiazhong Qian, Guizhang Zhao, Yunhai Fang, Haichun Ma and Jingping Wang
affiliation not provided to SSRN, Hefei University of Technology, Hefei University of Technology, North China University of Water Resources and Electric Power, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 47 (1,097,529)

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Rock fracture, geometrical properties, resistivity, permeability, fracture aperture

4.

Effect of shear-induced geometry changes on solute mixing at 3D rough-walled fracture intersections

Number of pages: 58 Posted: 05 Sep 2025
Haoming Zhang, Jiazhong Qian, Liangchao Zou, Lei Ma and Vladimir Cvetkovic
Hefei University of Technology, Hefei University of Technology, Royal Institute of Technology (KTH), Hefei University of Technology and affiliation not provided to SSRN
Downloads 44 (1,133,231)

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Fracture intersection, Surface roughness, Peclet number, Mixing ratio, Shear displacement

5.

Influence of Geometric Characteristics on Water Flow and Solute Transport at Fracture Intersections

Number of pages: 29 Posted: 21 Sep 2022
Jiazhong Qian, Xueqi Liang, Yong Liu, Lei Ma and Xiangquan Li
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Chinese Academy of Geological Sciences - Institute of Hydrogeology and Environmental Geology
Downloads 39 (1,196,171)

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Fracture intersection, Geometric characteristics, Preferential flow, Solute transport, Numerical simulation

6.

Analysis of Pipeline Strain Under Liquid Storage Pressure

Number of pages: 15 Posted: 15 Jul 2022
Haichun Ma, Peichao Feng, Jingping Wang, Jiazhong Qian, Lei Ma and Yaping Deng
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 36 (1,236,159)

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Pipeline, liquid storage pressure, theoretical analysis, acrylic pipe, strain gauges, experiments

7.

Quantification of Preferential Flow in Single Fracture Using Electrical Resistivity Monitoring

Number of pages: 38 Posted: 15 Apr 2025
Yongshuai Yan, Lei Ma, Jiazhong Qian, Yajing Yan, Yunhai Fang and Guizhang Zhao
affiliation not provided to SSRN, Hefei University of Technology, Hefei University of Technology, North China University of Water Resources and Electric Power, Hefei University of Technology and North China University of Water Resources and Electric Power
Downloads 35 (1,263,436)

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Preferential flow, 3-D fracture, Fracture geometrical properties, Electrical resistivity

8.

Coupling between Dynamic Dissolution and Nonlinear Seepage in Carbonate Rock Fractures

Number of pages: 29 Posted: 22 Nov 2025
Menghan Chu, Haichun Ma, Jiazhong Qian, Chunchao Zhang, Qiankun Luo and Lei Ma
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Chinese Academy of Geological Sciences - Institute of Hydrogeology and Environmental Geology, Hefei University of Technology and Hefei University of Technology
Downloads 34 (1,290,922)

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Rock-water interactions, Chemical dissolution, Nonlinear seepage, Nucleated dissolution, Self-reinforcing positive feedback cycle

9.

Integrating Multiple Methods to Identify Groundwater Runoff Characteristics in Karst Water Inflow Areas of an Underground Pumping Station in North China

Number of pages: 37 Posted: 21 Jan 2025
Wenfei Chi, Lei Ma, Jiazhong Qian, Yunhai Fang, Qiankun Luo and Yong Liu
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 33 (1,290,922)

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Underground pumping station, point velocity probes (PVP), Multitracer testing, Water inflow, Karst, Groundwater runoff

10.

Hydrochemistry and Stable Isotope Based Identification of Evolution Mechanism of Groundwater System in High Sulfur Non-Ferrous Metal Mining Area

Number of pages: 45 Posted: 27 Feb 2025
Bing Wang, Lei Ma, Jiazhong Qian, Yunhai Fang, Wei Xie, Dan Ding, Huan Zhou, Yang Long and Hanying Shen
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, affiliation not provided to SSRN, affiliation not provided to SSRN, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 32 (1,290,922)

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Mining region · Groundwater · Hydrochemistry · Stable isotopes · Inverse hydrogeochemical modeling

11.

Integrating Multiple Methods to Identify Groundwater Runoff Characteristics in Karst Water Inflow Areas of an Underground Pumping Station in North China

Number of pages: 45 Posted: 25 Mar 2025
Wenfei Chi, Lei Ma, Jiazhong Qian, Yunhai Fang, Qiankun Luo and Yong Liu
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 28 (1,359,097)

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Underground pumping station, point velocity probes (PVP), Multitracer testing, Water inflow, Karst, Groundwater runoff

12.

Diagnosing the integration strategy of Self-Attention with LSTM for enhanced water inflow prediction in karst underground engineering: A CEEMDAN-Based approach

Number of pages: 39 Posted: 28 Oct 2025
Wenfei Chi, Jiazhong Qian, Yunhai Fang, Qiankun Luo, Yong Liu, Lei Ma and Yaping Deng
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 22 (1,459,862)

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Water inflow, Karst underground engineering, Self-Attention (SA), Deep Learning, Long Short-Term Memory (LSTM), Complete Ensemble Empirical Mode Decomposition with Adaptive Noise (CEEMDAN)

13.

Experimental Study on the Evolution of Seepage Characteristics in Shale Fractures Under Confining Pressure and Temperature Conditions

Number of pages: 39 Posted: 05 Aug 2025
Peng Zhou, Haichun Ma, Jiazhong Qian, Lei Ma, Luwang Chen and Yaping Deng
Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology, Hefei University of Technology and Hefei University of Technology
Downloads 21 (1,448,301)

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Gas transport, Shale, Confining pressures, Temperatures, Gas breakthrough pressure