Study on the characteristics of grout permeation based on cylindrical diffusion

Journal of Coal Science and Engineering (China) - Tập 19 - Trang 57-62 - 2013
Shen-gang Li1, Wen Zhao1, Yun-sheng Huang2, Yun-xia Lei3, Long-mei Yu4
1College of Resources and Engineering, Northeastern University, Shenyang, China
2China Overseas Property Co., Ltd., Shenyang, China
3Shenyang Urban-Rural Construction Committee, Shenyang, China
4Dalian Port Construction Supervision & Consultation CO., Ltd., Dalian, China

Tóm tắt

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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Thông tin xuất bản

Journal of Coal Science and Engineering (China)

Tập 19

57-62

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