Acta Geotechnica最新文献

{"title":"Passive instability mechanisms in mega-diameter tunnel faces induced by boulder-laden strata: an integrated field-theoretical-numerical framework","authors":"Qilong Song,&nbsp;Dong Su,&nbsp;Weihong Yang,&nbsp;Xiangsheng Chen","doi":"10.1007/s11440-026-03007-4","DOIUrl":"10.1007/s11440-026-03007-4","url":null,"abstract":"<div><p>Boulders exhibit random burial locations, variable dimensions, and anomalous strength properties, which, during shield tunnelling operations, lead to abrupt increases in overturning moments and thrust forces, potentially triggering passive instability of the tunnel face. Current research inadequately addresses boulder-induced face instability, resulting in unclear failure mechanisms in boulder-laden strata. Based on the Zhuhai Xingye Express Tunnel project, this study systematically investigates face stability through field monitoring, numerical simulation, and theoretical modeling, establishing limit equilibrium models (NI-model for <i>D</i>_<i>b</i> = 0 m, LI-model for 0 &lt; <i>D</i>_<i>b</i> &lt; <i>D</i>_<i>c</i>, and GI-model for <i>D</i>_<i>c</i> ≤ <i>D</i>_<i>b</i> &lt; <i>D</i>) that consider boulder diameter and positions, where <i>D</i>_<i>b</i>, <i>D</i>_<i>c</i>, and <i>D</i> represent boulder diameter, critical boulder diameter, and tunnel diameter, respectively. Key findings include: (1) Unblasted boulder-laden strata significantly impair shield performance, reducing penetration rates by 40%, increasing peak overturning moments by 300%, and elevating thrust forces by 30%, with exceptionally large boulders exacerbating these effects; (2) increasing boulder diameter induces a transition from localized to global passive failure mechanisms, with limit support pressure (<i>σ</i>_<i>p</i>,max) showing negligible variation when 0 &lt; <i>D</i>_<i>b</i> &lt; <i>D</i>_<i>c</i> but a monotonic reduction when <i>D</i>_<i>c</i> ≤ <i>D</i>_<i>b</i> &lt; <i>D</i>; (3) comparative analysis of normalized parameters confirms agreement between the proposed model and numerical results, demonstrating that <i>σ</i>_<i>p</i>,max increases with greater clearance between boulder top and tunnel crown while larger boulders exhibit stronger position-dependent instability effects; (4) parametric analysis reveals no significant correlation between <i>c</i>, <i>C</i>/<i>D</i>, or <i>D</i> with <i>D</i>_<i>c</i>/<i>D</i>, while <i>φ</i> shows a positive correlation with <i>D</i>_<i>c</i>/<i>D</i>.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 8","pages":"4799 - 4824"},"PeriodicalIF":6.5,"publicationDate":"2026-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel hydro-mechanical-chemical coupled model considering the transport of insoluble substances for acid stimulation","authors":"Chao Chen,&nbsp;Wei Wang,&nbsp;Ya-Jun Cao,&nbsp;Shifan Liu,&nbsp;Xiaoli Liu,&nbsp;Wanqing Shen","doi":"10.1007/s11440-026-02973-z","DOIUrl":"10.1007/s11440-026-02973-z","url":null,"abstract":"<div><p>Acid stimulation is widely used to enhance fluid extraction from carbonate reservoirs. However, the understanding of wormhole propagation and the impact of multi-field coupling (hydro-mechanical-chemical, HMC) on acidizing processes remains limited. This study presents a modified HMC coupled model to simulate the interaction between acid flow, rock dissolution, and mechanical deformation in carbonate rocks. The model is combined with the two-scale continuum method to capture the coupled behaviors of seepage, stress, and chemical corrosion. Results from numerical simulations indicate that the coupling effect of seepage–stress at higher injection rates has a greater impact on the effective acid penetration than the uncoupled condition. Furthermore, based on the basic corrosion theory, this study proposes a porosity diffusion coefficient for the evolution effect of wormholes caused by insoluble substances during the acid stimulation. The larger the porosity diffusion coefficient is, the greater the blocking effect of the insoluble substance. Consequently, the dissolution mode changes from the wormhole pattern to the conical or face dissolution pattern. This study provides a novel insight into acid stimulation in carbonate reservoirs, with implications for better management of geothermal energy and hydrocarbon extraction processes.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 5","pages":"3023 - 3048"},"PeriodicalIF":6.5,"publicationDate":"2026-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148292244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interface characterization of ground anchors embedded in soybean urease-induced carbonate precipitation-stabilized soils","authors":"Genbao Zhang,&nbsp;Xiao Luo,&nbsp;Siqing Li,&nbsp;Lanting Deng,&nbsp;Yukang Liu,&nbsp;Zhining Wang,&nbsp;Zhongbiao Li,&nbsp;Mingdong Li,&nbsp;Changjie Xu","doi":"10.1007/s11440-026-03009-2","DOIUrl":"10.1007/s11440-026-03009-2","url":null,"abstract":"<div><p>Due to the long-term strength degradation of soils, ground anchors often exhibit insufficient anchorage performance during service. Reinforcing the soil around anchors using soybean urease-induced carbonate precipitation (SICP) technology is a potential method to enhance the anchorage performance of active anchors. To explore the mechanism of anchorage performance evolution of SICP-stabilized anchors and the impact pattern of cementation solution concentration on reinforcement effectiveness, urease activity selection tests were conducted to determine the soybean powder concentration for SICP-stabilized soil. Cementation solutions with equal mass ratios of calcium chloride and urea were prepared, and samples of and element specimens of SICP-stabilized anchors were made under different cementation solution concentrations. Direct Shear tests on stabilized soil and interface shear tests on stabilized anchors were performed. Microstructural tests, including XRD and SEM, were also conducted on the stabilized soil within the shear bands of the stabilized anchors. The study found that SICP-stabilized soil exhibits strain-hardening behavior under shear. Cohesion and internal friction angles show a \"see-saw\" complementary relationship with increasing cementation solution concentration. The bond-slip at the SICP-stabilized anchorage interface exhibits strain-softening behavior. Once the cementation solution concentration exceeds 1.00 mol/L, the peak shear strength of the anchorage interface increases linearly with further concentration increases. However, the residual shear stiffness of the anchorage interface is less sensitive to changes in cementation solution concentration. Microstructural analysis reveals 1.75 mol/L as a critical threshold. At this concentration, CaCO₃ phase transformation homogenized the pore structure and formed a strong interfacial cementation layer, which enhanced the interface shear strength, initial shear stiffness, and soil cohesion.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 8","pages":"4717 - 4734"},"PeriodicalIF":6.5,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of failure envelope for submarine pipeline in spatially variable clay","authors":"Fei Liu,&nbsp;Chao Fan Liu,&nbsp;Yu Zhou Sun,&nbsp;Jiang Tao Yi,&nbsp;Xiang Ming Zhou,&nbsp;Long Fei Wang","doi":"10.1007/s11440-026-03001-w","DOIUrl":"10.1007/s11440-026-03001-w","url":null,"abstract":"<div><p>Submarine pipelines are one of the most efficient modes for the oil and gas in offshore environments. During operation cycles, pipelines may undergo thermal expansion induced by the high temperatures and high pressures (HTHP), which can cause them to experience combined vertical (<span>(V)</span>) and horizontal (<span>(H)</span>) loading. The bearing capacity of pipelines under this complex loading scenario is typically described using the <span>(VH)</span> failure envelopes. Although numerous research studies have been carried out on the structure and failure mechanisms of <span>(VH)</span> failure envelopes, most of them are deterministic analyses. To remedy this situation, two-dimensional (2D) random finite element analyses were repeatedly conducted in this paper within a Monte Carlo framework. The results indicate that the soil strength randomness can decrease the pipeline’s uniaxial bearing capacity of the pipeline as well as modify the size and shape of the <span>(VH)</span> failure envelopes compared to deterministic soil. The <span>(VH)</span> failure envelopes at various failure probabilities are presented, and it is observed that the factors of safety suggested by the guidelines do not fulfill the pipeline design requirements. Consequently, a procedure for determining the design <span>(VH)</span> failure envelope of pipelines in random soil under combined <span>(VH)</span> loads is developed. These findings offer valuable insights for pipeline design.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 8","pages":"4701 - 4716"},"PeriodicalIF":6.5,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A probabilistic retention model for fine sand infiltration in granular filters based on experimental and numerical insights","authors":"Abhijit Hegde,&nbsp;Fan Chen,&nbsp;Nadia Benahmed,&nbsp;Antoine Wautier,&nbsp;Pierre Philippe,&nbsp;François Nicot","doi":"10.1007/s11440-026-02974-y","DOIUrl":"10.1007/s11440-026-02974-y","url":null,"abstract":"<div><p>Loss of fine particles in gap-graded soils under seepage forces may decrease the relative density of soil which can make it susceptible to failure by static liquefaction under unexpected loading conditions. To evaluate the potential of a remediation technique involving the replacement of eroded grains from the outside of the soil matrix, we carried out a comprehensive analysis of the elementary interplay between fine particles advected by water flow and the granular skeleton of the soil. To this end, experiments and numerical simulations have been designed for a wide range of size ratios <i>R</i> (<span>(D_{15}/d_{85})</span>) between the fine and the coarse grains. Both experimental and numerical results show that the capacity of the soil to retain the injected fine grains decays exponentially along the infiltration depth, allowing direct assessment of the mean infiltration distance <span>(L_{0})</span>. A micro-mechanically based probabilistic model is put forward to interpret <span>(L_{0})</span> based on the pore/constriction size distribution of the coarse sand column. The model is extended to real materials by using a modified Rayleigh distribution to represent the constriction size distribution of the coarse sample in the experiment, calibrated by two parameters directly derived from its particle size distribution. The predictive capacity of this probabilistic model is validated via the infiltration results extracted from both the experiments and numerical simulations.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 7","pages":"4249 - 4264"},"PeriodicalIF":6.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Solidified high moisture and high organic content sediment as liquefied backfill material for urban underground space","authors":"Hongwei Wang,&nbsp;Yuanbo Ding,&nbsp;Longjun Dong,&nbsp;Dongxing Wang,&nbsp;Daoyuan Sun,&nbsp;Fang Yan","doi":"10.1007/s11440-026-02960-4","DOIUrl":"10.1007/s11440-026-02960-4","url":null,"abstract":"<div><p>Ordinary Portland cement (OPC) is the most commonly used binder for the solidification/stabilization of dredged sediments. However, the production process of OPC causes high CO₂ emissions and the consumption of large amounts of nonrenewable resources. Additionally, the solidification/stabilization treatment of sediments with high moisture and organic matter contents requires the addition of a large amount of OPC, which not only increases the cost but also has limited solidification effectiveness. Therefore, there is an urgent need to develop new types of sustainable, effective, and inexpensive binders to replace OPC for the solidification/stabilization treatment of dredged sediments with high moisture and organic matter contents. For this purpose, this study proposed a novel solid waste based binder to solidify the dredged sediment with high moisture and high organic matter contents. The solidified dredged sediment could be reused as the liquefied stabilized backfill material (LSBM) for urban underground space. The research evaluates the effects of initial moisture content, organic matter content, and binder content on the fluidity and unconfined compressive strength (UCS) of solidified dredged sediment. Meanwhile, the curing mechanism is assessed through pH value, electrical conductivity, and scanning electron microscopy (SEM) tests. The results indicate that the fluidity and UCS of LSBM meet the requirements for engineering applications. Compared with treatment with OPC, treatment using the solid waste-based binder reduces the cost and ECO₂ of LSBM by 17.2% and 59.7%, respectively. The environmental and economic benefits are notable. The main products of the LSBM are ettringite (AFt) and C–S–H gels, and the specimens are denser than the OPC-treated specimens. Therefore, it is feasible to produce LSBM using solid waste based binder to solidify dredged sediment with high moisture and high organic matter content.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 8","pages":"4675 - 4699"},"PeriodicalIF":6.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149163011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An exact solution for non-Darcian flow to a well in confined aquifers with variable permeability","authors":"Qing Wang,&nbsp;Zhenming Shi,&nbsp;Yongzhi Zhao","doi":"10.1007/s11440-026-02980-0","DOIUrl":"10.1007/s11440-026-02980-0","url":null,"abstract":"<div><p>This study investigates non-Darcian flow to a well in confined aquifers, considering radial hydraulic conductivity variations. A stratified computational model based on the Izbash equation is developed and then solved by using the transformed differential quadrature method (TDQM). Initially, a linearization approximation approach is used to handle the continuity equation of groundwater flow based on Izbash's law. The Laplace transform is then applied, and the radial direction is discretized according to the discretization rules of the TDQM. After introducing the boundary and interlayer continuity conditions, an overall solution matrix is constructed. By solving the matrix equation and applying the inverse integral transform, the non-Darcian drawdown solution for the confined aquifer with variable hydraulic conductivity is derived. After several validations, case studies are designed to analyze the effects of various parameters on drawdown, including comparisons between stratified and equivalent models, sensitivity analysis of hydraulic conductivity and the non-Darcian coefficient across different radial zones, and the influence of wellbore skin.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 6","pages":"3473 - 3487"},"PeriodicalIF":6.5,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148365913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Coupled effects of compaction conditions and suction on the cyclic behaviour of an unsaturated soil","authors":"Bao-Lin Dai,&nbsp;Chao Zhou","doi":"10.1007/s11440-026-02983-x","DOIUrl":"10.1007/s11440-026-02983-x","url":null,"abstract":"<div><p>Compaction conditions, including compaction density and water content, can greatly affect the microstructure and macro-behaviour of soils. So far, the effects of compaction conditions on the cyclic behaviour of unsaturated soils at various suctions have not yet been investigated, which is important for many issues (e.g. ground subsidence and road collapse) in engineering geology. In this study, loess specimens were compacted at two dry densities and two water contents. For each compaction condition, three different specimens were prepared and the subjected to different suctions (0, 10, and 30 kPa), followed by cyclic loading–unloading. At the same density and suction, permanent vertical strain increases and resilient modulus decreases as compaction water content increases. This is because the soil skeleton becomes softer due to the existence of extra-large inter-clod pores, as revealed by microstructural analysis. In addition, as dry density increases, a significant reduction in permanent vertical strain and an increase in resilient modulus are observed. The effects of compaction water content and dry density become less significant as suction increases, possibly because the soil skeletons of specimens compacted at higher water contents and lower densities are more sensitive to suction variations. New equations were proposed to describe the influence of compaction conditions on cyclic behaviour, and their performances were examined using data from both the present study and the literature.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 7","pages":"3891 - 3908"},"PeriodicalIF":6.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11440-026-02983-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A unified soil–water retention curve model for unsaturated soils considering freeze–thaw cycle effects","authors":"Xiao Han,&nbsp;Jiangtao Yi,&nbsp;Changbing Qin,&nbsp;Hongyu Tang,&nbsp;Jingnian Ran,&nbsp;Ye Tian","doi":"10.1007/s11440-026-02953-3","DOIUrl":"10.1007/s11440-026-02953-3","url":null,"abstract":"<div><p>Bimodal pore structures are commonly observed in unsaturated soils and play a vital role in controlling soil–water retention behavior, a key factor influencing water migration and soil mechanical performance in seasonally frozen regions. The soil–water retention curve (SWRC), which describes the relationship between soil water content and matric suction, is significantly affected by the evolution of pore structure during freeze–thaw processes. However, existing models seldom consider the coupled influence of freeze–thaw-induced pore structural changes, such as variations in void ratio, on the SWRC. This study proposes a novel bimodal SWRC model for fine-grained soils that accounts for the effects of freeze–thaw cycles, capturing the evolution of pore structure during repeated freeze–thaw cycles through variations in void ratio. Besides, the proposed model can flexibly represent both unimodal and bimodal behaviors within a unified formulation. Validation using experimental data demonstrates that the model accurately simulates the SWRCs of fine-grained soils under various stress states and freeze–thaw conditions. Comparative results further confirm its superior fitting performance and physical interpretability compared with traditional models. Furthermore, the proposed model shows good agreement with experimental data for different soil types, providing a more robust and comprehensive tool for analyzing the hydraulic behavior of unsaturated soils in cold-region engineering.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 6","pages":"3425 - 3442"},"PeriodicalIF":6.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148366100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Permeability degradation in self-healing rock salt under humidity cycling: experimental and modeling study using multiple characterization techniques","authors":"Zhen Zeng,&nbsp;Hongling Ma,&nbsp;Jingcui Li,&nbsp;Wei Liang,&nbsp;Xuan Wang,&nbsp;Zhuyan Zheng,&nbsp;Rui Liang,&nbsp;Kai Zhao","doi":"10.1007/s11440-026-02929-3","DOIUrl":"10.1007/s11440-026-02929-3","url":null,"abstract":"<div><p>Accurately assessing the permeability evolution of the damaged zone surrounding underground salt caverns is critical for ensuring their long-term tightness as gas storage. During high-frequency injection–withdrawal operations, the surrounding rock salt undergoes humidity cycling that activates self-healing mechanisms to alter its permeability. In this study, the transient pulse method was employed to continuously measure the damaged rock salt’s permeability under humidity cycling. A three-stage degradation trend was identified: a gradual decline in the early stage (0–18 cycles), a rapid decrease in the intermediate stage (18–30 cycles), and a progressive stabilization in the late stage (30–42 cycles). To elucidate the underlying self-healing mechanisms, water migration and void evolution in the rock were derived from nuclear magnetic resonance (NMR) relaxation spectra and subsequently parameterized and calibrated using geometrical features quantified by computed tomography (CT). Integrated analysis of these characterization results reveals that recrystallization driven by distortion energy is delayed by approximately one week relative to diffusion mass transfer but proved more effective in blocking seepage paths. Exponential decay and Gaussian functions were adopted to describe the rate of the basic self-healing effect and the recrystallization-enhanced effect, respectively, while the genus number was introduced to characterize the healing progression. An evolution model of key seepage parameters in rock, including wall roughness and tortuosity, was then established. Accordingly, a modified Kozeny–Carman (KC) model incorporating this self-healing progress was proposed, and its predictions showed strong agreement with experimental data, confirming its reliability. By developing a self-healing characterization framework incorporating multi-source data, this study establishes a trans-scale quantitative relationship between micron-scale healing behaviors and macroscale permeability, thereby improving the accuracy of tightness assessments for salt cavern gas storage and offering a new paradigm for studying the geomaterials’ permeability evolution.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"21 7","pages":"4183 - 4204"},"PeriodicalIF":6.5,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}