A kind of landslide control method
A soil and air pipeline technology, applied in excavation, construction, infrastructure engineering, etc., can solve problems such as soil slippage, loss of cable prestress, soil creep, etc., to achieve landslide soil stability and landslide prevention The effect of soil sliding and weight reduction
Active Publication Date: 2021-02-19
中铁二院成都勘察设计研究院有限责任公司
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Problems solved by technology
[0004] However, in soil slopes with loose soil and low cohesion, soil creep is likely to occur after construction using this method, or soil compression deformation occurs, resulting in the loss of prestress of the cable body, which eventually leads to soil slippage.
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Embodiment Construction
[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0033] A landslide control method, comprising the following steps:
[0034] Step 1: arrange several first boreholes and second boreholes on the soil, the first boreholes and the second boreholes are staggered and evenly distributed, and the aperture of the first borehole is smaller than the aperture of the second borehole, the first borehole The depth of the hole and the second borehole is 5 / 4~4 / 3 of the thickness of the landslide soil, insert steel cables into the second borehole and pour concrete;
[0035] Step 2: After the concrete in the second borehole is solidified, insert the air pipe 1 into the first borehole, and inflate the first borehole. The inflation pressure increases step by step from small to large during inflation. Stop inflating when the gas emerges from the ground, and continue to inflate after an interval of 5 to 10 hours until the presse...
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The invention relates to a landslide treatment method. A plurality of first boreholes and second boreholes are arranged on the soil, the first boreholes and the second boreholes are evenly distributed alternately, steel cables are inserted into the second boreholes and poured into the second boreholes. Concrete; after the concrete in the second borehole is solidified and formed, inflate into the first borehole, and stop inflating when the pressed gas emerges on the ground until the water in the landslide soil is discharged; in the first borehole Inject the chemical grouting material, then insert the anchor cable in the first borehole, and inject concrete in the first borehole; after the chemical grouting material and the concrete in the first borehole are solidified, the anchor cable in the second borehole and the Tension chains are connected between the anchor cables in the first borehole; vegetation is planted on the landslide soil surface to reinforce the surface soil. In soil slopes with loose soil and low cohesion, this method can also play a good role in preventing landslide soil from sliding.
Description
technical field [0001] The invention relates to the technical field of geological disaster control, in particular to a landslide control method. Background technique [0002] Landslides are common geological disasters, especially in the process of engineering construction in hilly areas, landslide disasters often cause significant losses to engineering construction. The vast majority of landslides are closely related to rainfall, because rainfall causes the groundwater level of the slope to rise, leading to the occurrence of landslides. Most landslides are characterized by sliding in the rainy season and relatively stable in the dry season. Especially for cohesive soil slopes containing gravel, they are mostly residual slope accumulations, ancient collapses or ancient landslide accumulations, and their stability is closely related to groundwater level changes. The rise of the slope groundwater level is a cumulative process of rainfall. The simultaneous monitoring results o...
Claims
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IPC IPC(8): E02D17/20E02D15/04E02D5/76E02D3/10
CPCE02D3/10E02D5/76E02D15/04E02D17/20
Inventor 徐海涛杨贵勇方睿马鹏黄培敏徐宇
Owner 中铁二院成都勘察设计研究院有限责任公司