Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Water-rich sand layer shield tunnel leakage water treatment method and drilling and grouting integrated device
According to the water-rich sand layer shield tunnel leakage water treatment method and the drilling and grouting integrated device, a grouting outer ring is formed through construction of the drilling and grouting integrated device, then a micro-disturbance grouting technology is adopted to permeate and reinforce an inner ring area, a second grouting reinforcement ring is formed, and water-rich sand layer shield tunnel leakage water treatment is achieved. The drilling and grouting integrated device has the beneficial effects that a self-oscillation pulse structure adopted by the drilling and grouting integrated device can greatly increase the diffusion radius of grout in a soil body, the problems that the grout diffuses in the direction away from a shield segment lining and diffuses unevenly in the soil body are solved, and the grouting reinforcement effect is improved; the drainage holes are formed in the spacer ring, so that the phenomena of pipe piece dislocation, even pipe piece crack damage and the like caused by overlarge pore pressure in the grouting process can be prevented; and the cement-water glass double-liquid slurry and cement single-liquid slurry alternate grouting mode is adopted, so that the water glass consumption can be reduced, the economic benefit is improved, and the strength of a reinforcing body is ensured.
一种富水砂层盾构隧道渗漏水治理方法与钻注一体化装置，所述方法通过钻注一体化装置施工形成注浆外圈，然后采用微扰动注浆技术渗透加固内圈区域，形成第二道注浆加固圈，实现富水砂层盾构隧道渗漏水的治理。本发明的有益效果是：钻注一体化装置采用的自激振荡脉冲结构可以大幅提高浆液在土体中的扩散半径，解决了浆液向远离盾构管片衬砌方向扩散和在土体内扩散不均匀的问题，提高注浆加固效果；隔环设置泄水孔，可防止注浆过程中孔隙压力过大，造成管片错台甚至严重时出现管片裂损等现象；采用水泥‑水玻璃双液浆和水泥单液浆交替注浆方式可节省水玻璃用量，提高经济效益，并保证加固体强度。
Water-rich sand layer shield tunnel leakage water treatment method and drilling and grouting integrated device
According to the water-rich sand layer shield tunnel leakage water treatment method and the drilling and grouting integrated device, a grouting outer ring is formed through construction of the drilling and grouting integrated device, then a micro-disturbance grouting technology is adopted to permeate and reinforce an inner ring area, a second grouting reinforcement ring is formed, and water-rich sand layer shield tunnel leakage water treatment is achieved. The drilling and grouting integrated device has the beneficial effects that a self-oscillation pulse structure adopted by the drilling and grouting integrated device can greatly increase the diffusion radius of grout in a soil body, the problems that the grout diffuses in the direction away from a shield segment lining and diffuses unevenly in the soil body are solved, and the grouting reinforcement effect is improved; the drainage holes are formed in the spacer ring, so that the phenomena of pipe piece dislocation, even pipe piece crack damage and the like caused by overlarge pore pressure in the grouting process can be prevented; and the cement-water glass double-liquid slurry and cement single-liquid slurry alternate grouting mode is adopted, so that the water glass consumption can be reduced, the economic benefit is improved, and the strength of a reinforcing body is ensured.
一种富水砂层盾构隧道渗漏水治理方法与钻注一体化装置，所述方法通过钻注一体化装置施工形成注浆外圈，然后采用微扰动注浆技术渗透加固内圈区域，形成第二道注浆加固圈，实现富水砂层盾构隧道渗漏水的治理。本发明的有益效果是：钻注一体化装置采用的自激振荡脉冲结构可以大幅提高浆液在土体中的扩散半径，解决了浆液向远离盾构管片衬砌方向扩散和在土体内扩散不均匀的问题，提高注浆加固效果；隔环设置泄水孔，可防止注浆过程中孔隙压力过大，造成管片错台甚至严重时出现管片裂损等现象；采用水泥‑水玻璃双液浆和水泥单液浆交替注浆方式可节省水玻璃用量，提高经济效益，并保证加固体强度。
Water-rich sand layer shield tunnel leakage water treatment method and drilling and grouting integrated device
一种富水砂层盾构隧道渗漏水治理方法及钻注一体化装置
JIANG YALONG (Autor:in) / LIN FUGEN (Autor:in) / DUAN YUN (Autor:in) / HUANG ZHANJUN (Autor:in) / LUO CHENG (Autor:in) / ZHU BITANG (Autor:in)
28.11.2023
Patent
Elektronische Ressource
Chinesisch
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