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A platform for research: civil engineering, architecture and urbanism
Method for side slope grouting-air inflation circulation drainage and cross seepage prevention structure forming
The invention provides a method for side slope grouting-air inflation circulation drainage and forming of a cross seepage prevention structure. According to the method, slurry injection and air grouting cross circulation are carried out on a submarining stratum through a conveying pipe embedded in a slope body. Solid particles in the slurry permeate into an unsaturated area of the soil body to gather, squeeze out underground water in the soil body, gather in formation pores, and are pushed forwards under the subsequent air pushing effect, and a mud film with excellent continuity and air closeness is formed in the slope body under the drainage consolidation effect; after multiple rounds of cross circulation, the mud film and the air wrapped in the middle form a cross seepage prevention structure; the mud film-air cross seepage prevention structure jointly discharges underground water in the stratum, meanwhile, a good seepage prevention barrier is formed in the slope body, and the adverse effect of follow-up rainfall infiltration on the stability of the slope body is avoided. The device has the effects of fully discharging accumulated water in the slope body at a time and blocking seepage for a long time, and the problem of landslide caused by continuous heavy rainfall infiltration can be effectively solved.
本发明提供了一种边坡注浆‑充气循环排水与形成交叉阻渗结构的方法，该方法通过埋入坡体内的输送管向潜滑地层进行泥浆注入和空气压浆交叉循环。泥浆中的固体颗粒渗透至土体非饱和区聚集，挤出土体内的地下水，并聚集在地层孔隙中，并在后续的空气推动作用下向前推进，经过排水固结作用下在坡体内形成连续性和闭气性俱佳的泥膜；多轮交叉循环后泥膜与其中间包裹的空气形成交叉阻渗结构；此泥膜‑空气交叉阻渗结构共同排出地层中地下水，同时在坡体内形成良好的阻渗屏障，避免后续降雨入渗对坡体稳定性产生的不利影响。本发明具有单次充分排出坡体内积水和长期阻渗的效果，能够有效解决持续强降雨入渗造成的滑坡问题。
Method for side slope grouting-air inflation circulation drainage and cross seepage prevention structure forming
The invention provides a method for side slope grouting-air inflation circulation drainage and forming of a cross seepage prevention structure. According to the method, slurry injection and air grouting cross circulation are carried out on a submarining stratum through a conveying pipe embedded in a slope body. Solid particles in the slurry permeate into an unsaturated area of the soil body to gather, squeeze out underground water in the soil body, gather in formation pores, and are pushed forwards under the subsequent air pushing effect, and a mud film with excellent continuity and air closeness is formed in the slope body under the drainage consolidation effect; after multiple rounds of cross circulation, the mud film and the air wrapped in the middle form a cross seepage prevention structure; the mud film-air cross seepage prevention structure jointly discharges underground water in the stratum, meanwhile, a good seepage prevention barrier is formed in the slope body, and the adverse effect of follow-up rainfall infiltration on the stability of the slope body is avoided. The device has the effects of fully discharging accumulated water in the slope body at a time and blocking seepage for a long time, and the problem of landslide caused by continuous heavy rainfall infiltration can be effectively solved.
本发明提供了一种边坡注浆‑充气循环排水与形成交叉阻渗结构的方法，该方法通过埋入坡体内的输送管向潜滑地层进行泥浆注入和空气压浆交叉循环。泥浆中的固体颗粒渗透至土体非饱和区聚集，挤出土体内的地下水，并聚集在地层孔隙中，并在后续的空气推动作用下向前推进，经过排水固结作用下在坡体内形成连续性和闭气性俱佳的泥膜；多轮交叉循环后泥膜与其中间包裹的空气形成交叉阻渗结构；此泥膜‑空气交叉阻渗结构共同排出地层中地下水，同时在坡体内形成良好的阻渗屏障，避免后续降雨入渗对坡体稳定性产生的不利影响。本发明具有单次充分排出坡体内积水和长期阻渗的效果，能够有效解决持续强降雨入渗造成的滑坡问题。
Method for side slope grouting-air inflation circulation drainage and cross seepage prevention structure forming
一种边坡注浆-充气循环排水与形成交叉阻渗结构的方法
LIU CHENG (author) / LI CHEN (author) / ZOU XIAOPING (author) / LIU GUANGJUN (author) / JIA BEIBEI (author)
2023-10-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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