The development of grouting technology in our country is mainly marked by grouting materials and their applications. In ancient times, "Nuwa refined five-color stones to replenish the sky, and accumulated reed ash to stop the water." ("Huainanzi·Lan Mingxun") Leaving aside, the historical data on the use of lime mixed with clay slurry to strengthen the foundation in the Neolithic Age is also difficult to confirm for later generations. However, building panels made of lime mortar more than 4,000 years ago are now on display at the Banpo Museum in Xi'an, Shaanxi Province, and should be regarded as the beginning of grouting; more than 2,000 years ago, the Great Wall was made of "three combined soil" mixed with lime, sand and clay slurries. As a masonry material, the Great Wall still stands majestically on the land of China. It can be said to be a typical example of the successful application of grouting in China! Of course, this is only based on the similarity in pulp form. The above are only grouting materials, not grouting materials. Therefore, the real development of grouting technology in our country began in 1953.
In 1953, water glass was used for grouting to block water in Jiamusi City, Heilongjiang Province.
In June 1959, the Three Gorges Rock Foundation Special Research Group presented the first "Report on the Impact of Plasticizers on Cement Dispersion Stability" at the Yangtze River Three Gorges Project Cement Grouting Materials Research Conference held in Beijing.
From March to August 1960, the Three Gorges Rock Foundation Research Group also used epoxy to make slurry materials with low initial viscosity, high solidified strength, and strong adhesion to rocks. The first documents on chemical grouting.
In 1960, the Three Gorges Rock Foundation Special Research Group developed methyl methacrylate (methyl methacrylate) slurry.
In 1964, the Guangzhou Institute of Chemistry, Chinese Academy of Sciences, developed acrylamide (propylene coagulation) slurry and used it in engineering. Until the Fukuoka incident in Japan, the use of acrylamide was banned. In the same year, lignin chemical pulp, especially chromium lignin pulp, was researched, developed and applied.
In 1968, the Guangzhou Institute of Chemistry developed an epoxy resin chemical slurry using furfural-acetone as the diluent.
In 1973, Tianjin University and other units researched and developed polyurethane (i.e. cyanide) chemical slurry.
In 1974, the Scientific Research Institute of East China Survey and Design Institute developed water-soluble polyurethane (HW) slurry.
In 1979, the Yangtze River Academy of Sciences, the Guangzhou Institute of Chemistry and others developed elastic polyurethane slurry, which became one of my country's original chemical slurries and was used as a thin-layer closed tank protection and water-stop for the Yangtze River Gezhouba Water Conservancy Project. make important contributions.
In 1988, the Scientific Research Institute of China Railway Tunnel Group developed modified water glass slurry, which better solved the grouting problem of the fine sand layer of the Beijing Subway, thus making the shallow excavation method widely used in the Beijing Subway. Massive promotion of applications. A batch of modified epoxy slurries such as SK-E developed by China Water Conservancy and Hydropower Research Institute, JS developed by China Water Conservancy and Hydropower Basic Engineering Bureau Research Institute, and "Zhonghua-798" developed by Guangzhou Institute of Chemistry. During the same period, cement-water glass dual-liquid slurry was successfully used to seal and consolidate water on the F9 fault of the Dayaoshan Tunnel on the Hengguang Double Line and the debris flow section of the Jundushan Tunnel. Since then, the grouting water-blocking technology for underground engineering has been widely promoted and applied. .
In 1996, the China Railway Tunnel Group Research Institute researched and developed ultra-fine cement-water glass dual-liquid slurry for the dynamic water-powder fine sand layer in the Yangji-Tiyu West Road section tunnel of the Guangzhou Metro, and successfully applied it During the grouting, water blocking and reinforcement of this project.
In 1997, the China Railway Tunnel Group Research Institute researched and developed the patented TSS grouting pipe product for the fine sand layer of the Xiangxi Road pedestrian channel project in Shenzhen, and successfully applied it. The fine sand layer grouting technology is basically perfect.
At the beginning of the 21st century, the Yuanliangshan Tunnel of the Yuhuai Railway of the China Railway Tunnel Group Research Institute successfully applied ordinary cement slurry, ordinary cement-water glass double liquid slurry, ultra-fine cement slurry, and ultra-fine cement-water The combined system of glass double liquid slurry and TGRM slurry (HSC slurry) grouting materials has overcome the technical problems of grouting and water-blocking reinforcement in caves filled with high-pressure (water pressure: 3.5MPa) dynamic water powder and fine sand layers and silt-filled caves, achieving The design concept and concept of "focusing on plugging and limited emissions" for tunnel underground engineering have been developed, and multiple sets of grouting methods have been formed, thus bringing the underground engineering grouting technology to a new milestone. Since then, my country's grouting technology has ranked among the world's advanced levels.