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Landslide prevention and control method based on saturated clay in smooth accumulation layer
The invention discloses a landslide prevention and control method based on saturated clay in a gentle accumulation layer, which mainly takes water interception and drainage as main guide, on one hand, open drainage ditches are arranged on the periphery of the landslide of the saturated clay in the gentle accumulation layer, and on the other hand, blind drainage ditches and gravel piles are respectively arranged in the longitudinal and transverse directions of a sliding body part at the middle-lower part of a slope body. According to the open drain, the supply path of peripheral surface water to the slope slide area is cut off; the drainage blind ditches and the gravel piles below make full use of the relative permeable characteristic of the gravel layer on the lower portion of the slip mass, part of water is drained through the gravel layer at the bottom, when the water amount is too large, the gravel piles are equivalent to water collecting wells, the drainage path of underground water in the soil body is shortened, surrounding underground water is drained through the blind ditches after being collected, and therefore the water content of the soil body is reduced; soil consolidation is accelerated, the purpose of improving the shear strength of the soil is achieved, stability of the slope is facilitated, further deformation of the smooth accumulation layer saturated clay landslide is effectively prevented, the smooth accumulation layer saturated clay tends to be in a stable state, and the prevention and treatment effect is obvious.
本发明公开了一种基于平缓堆积层饱和黏土的滑坡防治方法,主要以截排水为主导,一方面在平缓堆积层饱和黏土的滑坡外围设置排水明沟,另一方面在坡体中下部滑体部分纵横向各设置排水盲沟和碎石桩。本发明的排水明沟截断了外围地表水对坡滑坡区的补给路径;排水盲沟及下方的碎石桩,充分利用了滑体下部碎石层的相对透水特性,将一部分水通过底部碎石层排出,水量过大时,碎石桩相当于集水井,缩短了地下水在土体内的排泄路径,周边地下水汇集后经盲沟排出,从而减小土体含水量,加速土体固结,达到提高土体抗剪强度的目的,有利于坡体的稳定,有效阻止了平缓堆积层饱和黏土滑坡的进一步变形,使平缓堆积层饱和黏土趋于稳定状态,防治效果明显。
Landslide prevention and control method based on saturated clay in smooth accumulation layer
The invention discloses a landslide prevention and control method based on saturated clay in a gentle accumulation layer, which mainly takes water interception and drainage as main guide, on one hand, open drainage ditches are arranged on the periphery of the landslide of the saturated clay in the gentle accumulation layer, and on the other hand, blind drainage ditches and gravel piles are respectively arranged in the longitudinal and transverse directions of a sliding body part at the middle-lower part of a slope body. According to the open drain, the supply path of peripheral surface water to the slope slide area is cut off; the drainage blind ditches and the gravel piles below make full use of the relative permeable characteristic of the gravel layer on the lower portion of the slip mass, part of water is drained through the gravel layer at the bottom, when the water amount is too large, the gravel piles are equivalent to water collecting wells, the drainage path of underground water in the soil body is shortened, surrounding underground water is drained through the blind ditches after being collected, and therefore the water content of the soil body is reduced; soil consolidation is accelerated, the purpose of improving the shear strength of the soil is achieved, stability of the slope is facilitated, further deformation of the smooth accumulation layer saturated clay landslide is effectively prevented, the smooth accumulation layer saturated clay tends to be in a stable state, and the prevention and treatment effect is obvious.
本发明公开了一种基于平缓堆积层饱和黏土的滑坡防治方法,主要以截排水为主导,一方面在平缓堆积层饱和黏土的滑坡外围设置排水明沟,另一方面在坡体中下部滑体部分纵横向各设置排水盲沟和碎石桩。本发明的排水明沟截断了外围地表水对坡滑坡区的补给路径;排水盲沟及下方的碎石桩,充分利用了滑体下部碎石层的相对透水特性,将一部分水通过底部碎石层排出,水量过大时,碎石桩相当于集水井,缩短了地下水在土体内的排泄路径,周边地下水汇集后经盲沟排出,从而减小土体含水量,加速土体固结,达到提高土体抗剪强度的目的,有利于坡体的稳定,有效阻止了平缓堆积层饱和黏土滑坡的进一步变形,使平缓堆积层饱和黏土趋于稳定状态,防治效果明显。
Landslide prevention and control method based on saturated clay in smooth accumulation layer
一种基于平缓堆积层饱和黏土的滑坡防治方法
CHEN JINHONG (Autor:in) / WANG TONGBIAO (Autor:in) / ZHANG BO (Autor:in) / WANG GANG (Autor:in) / WANG LIUWEN (Autor:in) / TIAN YAOGUANG (Autor:in) / JIN XUEJIAO (Autor:in) / XI DONGDONG (Autor:in) / RAN ZHANGQING (Autor:in) / LIU MINGJIANG (Autor:in)
23.09.2022
Patent
Elektronische Ressource
Chinesisch