{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T20:44:02Z","timestamp":1782938642907,"version":"3.54.5"},"reference-count":25,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,5,29]],"date-time":"2020-05-29T00:00:00Z","timestamp":1590710400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51778634"],"award-info":[{"award-number":["51778634"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In view of the deficiency of the split grouting theory for the filling area, a 3D simulated grouting test system was designed to explore the slurry diffusion law, reinforcement mechanism of split grouting in a filling soil, and effect of grouting reinforcement. The test system included an experiment bench system, grouting system, and information monitoring system, using which experimental research on split grouting in a filling soil was conducted. The grouting model experiment procedure was introduced first, following which the diffusion rule of slurry in the filling medium and the reinforcement mechanism of split grouting were analyzed according to the properties and distribution characteristics of grouting veins after grouting reinforcement. Finally, a uniaxial compression test, light dynamic contact test, permeability test, and laboratory geotechnical test were conducted on the soil before and after grouting. The relationship between the zoning characteristics of different properties of veins and the mechanical properties of filling soil were discussed. The results showed that there were three types of grouting veins: trunk grouting, branch grouting, and permeable grouting. The injected soil body was strengthened by the three-stage grouting vein network of the mentioned vein types and the compaction between soils. After the grouting, the uniaxial compressive strength of the filling soil increased by an average of 186%, and the permeability coefficient decreased by an average of 47 times. The cohesion and internal friction angle increased by 45.3% and 44.9%, respectively. Additionally, density, water content, and other indicators of filling were improved. The bearing characteristics reflected by a dynamic contact test were consistent with the distribution of grouting veins. The research results offer significant guidance for the reinforcement mechanism of split grouting and the evaluation of the grouting effect.<\/jats:p>","DOI":"10.3390\/s20113088","type":"journal-article","created":{"date-parts":[[2020,6,2]],"date-time":"2020-06-02T09:19:27Z","timestamp":1591089567000},"page":"3088","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":42,"title":["Experimental Study of Split Grouting Reinforcement Mechanism in Filling Medium and Effect Evaluation"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9425-5164","authenticated-orcid":false,"given":"Jiandong","family":"Niu","sequence":"first","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0736-3544","authenticated-orcid":false,"given":"Zewei","family":"Li","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiheng","family":"Gu","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kang","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha 410075, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,5,29]]},"reference":[{"key":"ref_1","first-page":"1627","article-title":"Model tests on curtain grouting in water-rich broken rock mass","volume":"37","author":"Zhang","year":"2015","journal-title":"Chin. J. Geotech. Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/j.ijsolstr.2019.06.013","article-title":"Micromechanical investigation of grouting in soils","volume":"187","author":"Boschi","year":"2020","journal-title":"Int. J. Solids Struct."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Niu, J., Wang, B., Chen, G., and Chen, K. (2019). Predicting of the Unit Grouting Quantity in Karst Curtain Grouting by the Water Permeability of Rock Strata. Appl. Sci., 9.","DOI":"10.3390\/app9224814"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"4784762","DOI":"10.1155\/2018\/4784762","article-title":"Research on the Fracture Grouting Mechanism and PFC Numerical Simulation in Loess","volume":"2018","author":"Zhang","year":"2018","journal-title":"Adv. Mater. Sci. Eng."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"292","DOI":"10.1016\/j.conbuildmat.2019.06.094","article-title":"Reinforcement simulation of water-rich and broken rock with Portland cement-based grout","volume":"221","author":"Sha","year":"2019","journal-title":"Constr. Build. Mater."},{"key":"ref_6","first-page":"924","article-title":"Model test of grouting strengthening mechanism for fault of tunnel","volume":"34","author":"Zhang","year":"2015","journal-title":"Chin. J. Rock Mech. Eng."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1007\/s13146-020-00568-7","article-title":"Experimental investigation of the fracture grouting efficiency with consideration of the viscosity variation under dynamic pressure conditions","volume":"35","author":"Han","year":"2020","journal-title":"Carbonate Evaporite"},{"key":"ref_8","first-page":"67","article-title":"Study on penetration grouting mechanism based on bingham fluid of time-dependent behavior","volume":"43","author":"Yang","year":"2011","journal-title":"J. Sichuan Univ. (Eng. Sci. Ed.)"},{"key":"ref_9","first-page":"2697","article-title":"Study of column-hemispherical penetration grouting mechanism based on Bingham fluid of time-dependent behavior of viscosity","volume":"32","author":"Yang","year":"2011","journal-title":"Rock Soil Mech."},{"key":"ref_10","first-page":"1328","article-title":"Study on the diffusion mechanism of split grouting","volume":"40","author":"Ouyang","year":"2018","journal-title":"Chin. J. Geotech. Eng."},{"key":"ref_11","first-page":"323","article-title":"Split grouting theory based on slurry-soil coupling effects","volume":"38","author":"Zhang","year":"2016","journal-title":"Chin. J. Geotech. Eng."},{"key":"ref_12","first-page":"925","article-title":"Diffusion of grouting cement in sandy soil considering filtration effect","volume":"38","author":"Li","year":"2017","journal-title":"Rock Soil Mech."},{"key":"ref_13","first-page":"1818","article-title":"Laboratory tests on compaction grouting and fracture grouting of clay","volume":"31","author":"Zhang","year":"2009","journal-title":"Chin. J. Geotech. Eng."},{"key":"ref_14","first-page":"1483","article-title":"Split grouting mechanism based on nonlinear characteristics of compression process of soil","volume":"35","author":"Zhang","year":"2016","journal-title":"Chin. J. Rock Mech. Eng."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Li, Z., Li, S., Liu, H., Zhang, Q., and Liu, Y. (2018). Experimental Study on the Reinforcement Mechanism of Segmented Split Grouting in a Soft Filling Medium. Processes, 6.","DOI":"10.3390\/pr6080131"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"106477","DOI":"10.1016\/j.petrol.2019.106477","article-title":"Numerical simulation and field test of grouting in Nong\u2019an pilot project of in-situ conversion of oil shale","volume":"184","author":"Guo","year":"2020","journal-title":"J. Pet. Sci. Eng."},{"key":"ref_17","first-page":"4523","article-title":"Volume of fluid method based finite element analysis of fracture grouting","volume":"40","author":"Zhu","year":"2019","journal-title":"Rock Soil Mech."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"107481","DOI":"10.1016\/j.measurement.2020.107481","article-title":"A self-control and visual grouting model test system and measurement method","volume":"154","author":"Peng","year":"2020","journal-title":"Measurement"},{"key":"ref_19","unstructured":"Sun, B.F. (2019). Study on the Influence and Control of Grouting Vein Shape on Grouting Effect. [Ph.D. Thesis, Beijing Jiaotong University]."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Li, Z., Zheng, L., Chen, C., Long, Z., and Wang, Y. (2019). Ultrasonic Detection Method for Grouted Defects in Grouted Splice Sleeve Connector Based on Wavelet Pack Energy. Sensors, 19.","DOI":"10.3390\/s19071642"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"278","DOI":"10.1007\/s12205-020-1530-z","article-title":"Forward Modelling and GPR Imaging in Leakage Detection and Grouting Evaluation in Tunnel Lining","volume":"24","author":"Lin","year":"2020","journal-title":"KSCE J. Civ. Eng."},{"key":"ref_22","first-page":"3800","article-title":"Experimental research on detection method of grouting effect in loose filled soil","volume":"44","author":"Cheng","year":"2013","journal-title":"J. Cent. South. Univ. (Sci. Technol.)"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"629","DOI":"10.2113\/JEEG24.4.629","article-title":"Integrated Investigation for Geological Detection and Grouting Assessment: A Case Study in Qingdao Subway Tunnel, China","volume":"24","author":"Guo","year":"2019","journal-title":"J. Environ. Eng. Geophys."},{"key":"ref_24","first-page":"92","article-title":"Comprehensive evaluation technology and application of grouting reinforcement effect for broken coal and rock mass","volume":"47","author":"Wang","year":"2019","journal-title":"Coal Geol. Explor."},{"key":"ref_25","first-page":"3431","article-title":"Research and application on tunnel and underground engineering grouting effect of evaluation method","volume":"36","author":"Wang","year":"2017","journal-title":"Chin. J. Rock Mech. Eng."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/11\/3088\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:33:54Z","timestamp":1760175234000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/20\/11\/3088"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,5,29]]},"references-count":25,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2020,6]]}},"alternative-id":["s20113088"],"URL":"https:\/\/doi.org\/10.3390\/s20113088","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,5,29]]}}}