临海软弱土注浆加固选材及工艺的试验研究
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摘要
珠海拱北隧道工程位于珠海拱北口岸,具有水文地质条件复杂、沿线建筑物众多等特点。拱北隧道所穿越场地为软土分布区,具有含水率高、压缩性高、易触变等特点。为了确保工程安全,针对该工程的特点,从注浆材料和注浆工艺两方面,对相关的注浆加固技术开展了必要的试验研究,确定了适合此隧道所处地层的最优注浆材料配比及最优注浆工艺参数。相关研究成果可为类似地质条件的注浆加固提供有益参考。
Gongbei tunnel project located in Zhuhai Gongbei port has the characteristics such as the complicated hydrogeological conditions and the many buildings along the route. The construction area where the tunnel passes through widely distributes soft clay which has the characteristics of high moisture content,high compressibility and easy thixotropy, etc. Considering the safety of the project, the studies of associated grouting reinforcement are carried out. According to characteristics of the project,the grouting material and grouting technique are studied,and the optimal grouting material ratio and the best process parameters for the tunnel strata are determined. The conclusions of the study could provide the reference scheme for the reinforcement with grouting in similar geological conditions.
Gongbei tunnel project located in Zhuhai Gongbei port has the characteristics such as the complicated hydrogeological conditions and the many buildings along the route. The construction area where the tunnel passes through widely distributes soft clay which has the characteristics of high moisture content,high compressibility and easy thixotropy, etc. Considering the safety of the project, the studies of associated grouting reinforcement are carried out. According to characteristics of the project,the grouting material and grouting technique are studied,and the optimal grouting material ratio and the best process parameters for the tunnel strata are determined. The conclusions of the study could provide the reference scheme for the reinforcement with grouting in similar geological conditions.
引文
[1]杨元龙,徐宇亮,于方.拱北隧道灌浆加固中注浆材料室内试验研究[J].广州化学,2014,39(1):24~29.Yang Yuanlong, Xu Yuliang, Yu Fang. Study on grouting material of Gongbei tunnel grouting reinforcement[J].Guangzhou Chemistry,2014,39(1):24~29.(in Chinese)
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[7]程鉴基.珠江三角洲软土地基水泥—水玻璃防渗固结灌浆处理初步研究[J].岩石力学与工程学报,1995,14(3):179~186.Cheng Jianji. Cement-water glass on ooze foundation in Zhujiang delta[J]. Chinese Journal of Rock Mechanics and Engineering,1995,14(3):179~186.(in Chinese)
[8]郑晨,李博,吴基文.粘土—水泥浆室内实验研究及其在煤层底板注浆改造中的应用[J].工程勘察,2014,42(3):5~10.Zheng Chen, Li Bo, Wu Jiwen. Indoor experimental study of clay-cement grout and its application in coal seam floor reconstruction by grouting[J]. Geotechnical Investigation&Surveying,2014,42(3):5~10.(in Chinese)
[2]王杰,杜嘉鸿.岩土注浆技术的理论探讨[J].长江科学院院报,2000,17(6):82~86.Wang Jie, Du Jiahong. Theoretical exploration on grouting technology[J]. Journal of Yangtze River Scientific Research Institute,2000,17(6):82~86.(in Chinese)
[3]熊厚金,张良,邹小平等.岩土工程化学导论[J].岩土工程学报,1999,21(4):403~407.Xiong Houjin, Zhang Liang, Zou Xiaoping et al. An introduction to the geotechnical chemistry[J]. Chinese Journal of Geotechnical Engineering,1999,21(4):403~407.(in Chinese)
[4]张民庆,韩忠存,施宏峰.超细水泥—水玻璃双液浆的研究及应用[J].铁道工程学报,1999,(4):132~141.Zhang Minqing, Han Zhongcun, Shi Hongfeng. Research and application of supperine cement and sodium mixed grout[J].Journal of Railway Engineering Society,1999,(4):132~141.(in Chinese)
[5]杨新安,陆士良,葛家良.软岩巷道锚注支护技术及其工程实践[J].岩石力学与工程学报,1997,16(2):171~177.Yang Xinan,Lu Shiliang,Ge Jialiang. Bolt-grouting support and its application in weak rock roadway[J]. Chinese Journal of Rock Mechanics and Engineering,1997,16(2):171~177.(in Chinese)
[6]李云成.水泥浆材在岩土中的灌入能力分析[J].山东商业职业技术学院学报,2010,10(5):104~106.Li Yuncheng. Analysis of grouting ability in rock-soil[J].Journal of Shandong Institute of Commerce and Technology,2010,10(5):104~106.(in Chinese)
[7]程鉴基.珠江三角洲软土地基水泥—水玻璃防渗固结灌浆处理初步研究[J].岩石力学与工程学报,1995,14(3):179~186.Cheng Jianji. Cement-water glass on ooze foundation in Zhujiang delta[J]. Chinese Journal of Rock Mechanics and Engineering,1995,14(3):179~186.(in Chinese)
[8]郑晨,李博,吴基文.粘土—水泥浆室内实验研究及其在煤层底板注浆改造中的应用[J].工程勘察,2014,42(3):5~10.Zheng Chen, Li Bo, Wu Jiwen. Indoor experimental study of clay-cement grout and its application in coal seam floor reconstruction by grouting[J]. Geotechnical Investigation&Surveying,2014,42(3):5~10.(in Chinese)