Study on the characteristics of grout permeation based on cylindrical diffusion
Study on the characteristics of grout permeation based on cylindrical diffusion作者机构：College of Resources and Engineering Northeastern University Shenyang 110819 China China Overseas Property Co. Ltd. Shenyang 110014 China Shenyang Urban-Rural Construction Committee Shenyang 110002 China Dalian Port Construction Supervision & Consultation CO. Ltd Dalian 116015 China
出 版 物：《Journal of Coal Science & Engineering(China)》 (煤炭学报（英文版）)
年 卷 期：2013年第19卷第1期
页 面：57-62页
学科分类：081401[工学-岩土工程] 08[工学] 0815[工学-水利工程] 081503[工学-水工结构工程] 0814[工学-土木工程]
基 金：Supported by the National Science and Technology Support Plan of 12th Five-year Plan (2012BAK24B00, 2012BAK24B0104) the National Natural Science Foundation of China (51204029) the Fundamental Research Funds of Chinese Ministry of Education (N110301003)
主 题：permeation grouting cylindrical diffusion grout amount slurry spreading radius gell strength
摘 要：Permeation grouting is widely applied for its low grouting pressure and minor disturbance to the stratum in grouting engineering, especially in engineering with strict requirements on ground settlement. However, permeation grouting theory lags behind compared with other engineering disciplines, and the theoretical formulas now available cannot accurately be used to guide grouting engineering design and predict the cost and effects of grouting due to many factors affecting grout permeation in stratum. In this study, permeation grouting experiment devices were independently manufactured with the characteristics of easily controlling grouting pressure, simulating sandy strata grout, and detecting grouting effect. Using a uniform design, the sand consolidation agent, as grouting material, its spread in Shenyang sandy strata was tested with these experiment devices. The quantitative relations between grouting factors （grouting pressure, strata parameters, water-sand consolidation agent ratio） and grouting effects （grout spread radius, gell strength, grout amount） are obtained with regression analysis, and the influence degree of grouting factors on grouting effects is studied.
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