CAJ | 학술논문

水泥基速凝浆液广泛应用于富水裂隙围岩注浆工程。为研究水泥基速凝浆液在裂隙注浆中的扩散机制与压力特性，选取水泥-水玻璃浆液及高聚物改性水泥浆液，采用不同水灰比及混合体积，开展了静水条件下单一平板裂隙的注浆扩散模型试验，通过监测浆液的注浆扩散形态和注浆过程中不同测点的压力变化，研究了水泥基速凝浆液的静水扩散规律和注浆扩散压力分布规律。试验结果表明，水泥-水玻璃浆液和高聚物改性水泥浆液具有相似的扩散形态和压力分布变化，两者的显著差别在于高聚物改性水泥浆液扩散所需的注浆压力明显小于水泥-水玻璃浆液，且凝结固化时间相对较长，有利于延长注浆扩散距离。研究结果应用于张马屯铁矿注浆堵水工程，解决了裂隙岩体渗漏水问题，实现了围岩稳定性控制。研究成果具有一定的理论和实践意义，对类似工程具有参考价值。
수니기속응장액엄범응용우부수렬극위암주장공정。위연구수니기속응장액재렬극주장중적확산궤제여압력특성，선취수니-수파리장액급고취물개성수니장액，채용불동수회비급혼합체적，개전료정수조건하단일평판렬극적주장확산모형시험，통과감측장액적주장확산형태화주장과정중불동측점적압력변화，연구료수니기속응장액적정수확산규률화주장확산압력분포규률。시험결과표명，수니-수파리장액화고취물개성수니장액구유상사적확산형태화압력분포변화，량자적현저차별재우고취물개성수니장액확산소수적주장압력명현소우수니-수파리장액，차응결고화시간상대교장，유리우연장주장확산거리。연구결과응용우장마둔철광주장도수공정，해결료렬극암체삼루수문제，실현료위암은정성공제。연구성과구유일정적이론화실천의의，대유사공정구유삼고개치。
Rapid setting cement-based grouts are widely used in water rich fracture grouting engineering. In order to study the defusing mechanism in fracture and pressure characteristic of rapid setting cement-based grouts, single planet fracture grouting model text under hydrostatic conditions were carried out using cement-silicate grout and polymer modified grout with different proportions. The diffusing behavior and the pressure variations in different measuring points were recorded to study the laws of hydrostatic diffusion of rapid setting cement-based grouts and the pressure distribution of grout diffusion. Results show that cement-silicate grout and polymer modified grout are similar in diffusing behavior and variation of pressure distribution, while the diffusing pressure of the cement-silicate grout is obviously higher than cement-silicate grout polymer modified grout, which has a relatively longer condensate and solidifying time and is conducive to improving the diffusing distance. The results are used in Zhangmatun iron mine with success in governing the water leakage in rock fracture and stability of the surrounding rock, which has a certain theoretical and practical significance and offers an reference for similar projects.