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Pulse grouting device and method for water-rich sand layer
A pulse grouting device and grouting method for a water-rich sand layer belong to the technical field of grouting and are characterized in that an inner pipe and an outer pipe are arranged, the upper portion is a non-grouting section, the lower portion is a grouting section, inner and outer grouting holes of the grouting section are distributed in a staggered mode, and the purpose of opening and closing the grouting holes is achieved by adjusting whether the inner and outer grouting holes coincide or not; high-pressure and high-speed slurry is impacted on the rotating disc, so that when the rotating disc rotates, the overlapping area of the overflowing hole and the through hole continuously changes and is opened and closed at a high speed, pulse jet flow is formed, and the permeation effect of the slurry is enhanced; the centrifugal disc is driven by the rotating disc to rotate, so that the centrifugal disc generates centrifugal force, the slurry is centrifugally splashed, secondary pressurization is achieved, and the permeation effect of the slurry is further enhanced; and through mechanical vibration of the rotating disc and mechanical vibration of the centrifugal disc, a vibration effect is formed on a surrounding sand layer, so that a better mixing effect is achieved in slurry and the sand layer, and the grouting reinforcement effect is improved.
一种用于富水砂层的脉冲注浆装置及注浆方法，属于注浆技术领域，其特征是，本发明采用内外管布置，上部为非注浆段、下部为注浆段，注浆段的内、外注浆孔交错分布，通过调节内、外注浆孔重合与否，达到注浆孔启闭目的；通过将高压高速的浆液冲击在旋转圆盘上，使得旋转圆盘转动的同时，过流孔与通孔的重合区域不断变化，高速开合，形成脉冲射流，增强浆液的渗透效果；通过旋转圆盘带动离心圆盘转动，离心圆盘由此产生离心力，使浆液形成离心式飞溅，达到二次增压，进一步增强浆液的渗透效果；通过旋转圆盘的机械振动以及离心圆盘的机械振动，对周围砂层形成振动效果，使浆液和砂层中达到更好的混合效果，提高注浆加固效果。
Pulse grouting device and method for water-rich sand layer
A pulse grouting device and grouting method for a water-rich sand layer belong to the technical field of grouting and are characterized in that an inner pipe and an outer pipe are arranged, the upper portion is a non-grouting section, the lower portion is a grouting section, inner and outer grouting holes of the grouting section are distributed in a staggered mode, and the purpose of opening and closing the grouting holes is achieved by adjusting whether the inner and outer grouting holes coincide or not; high-pressure and high-speed slurry is impacted on the rotating disc, so that when the rotating disc rotates, the overlapping area of the overflowing hole and the through hole continuously changes and is opened and closed at a high speed, pulse jet flow is formed, and the permeation effect of the slurry is enhanced; the centrifugal disc is driven by the rotating disc to rotate, so that the centrifugal disc generates centrifugal force, the slurry is centrifugally splashed, secondary pressurization is achieved, and the permeation effect of the slurry is further enhanced; and through mechanical vibration of the rotating disc and mechanical vibration of the centrifugal disc, a vibration effect is formed on a surrounding sand layer, so that a better mixing effect is achieved in slurry and the sand layer, and the grouting reinforcement effect is improved.
一种用于富水砂层的脉冲注浆装置及注浆方法，属于注浆技术领域，其特征是，本发明采用内外管布置，上部为非注浆段、下部为注浆段，注浆段的内、外注浆孔交错分布，通过调节内、外注浆孔重合与否，达到注浆孔启闭目的；通过将高压高速的浆液冲击在旋转圆盘上，使得旋转圆盘转动的同时，过流孔与通孔的重合区域不断变化，高速开合，形成脉冲射流，增强浆液的渗透效果；通过旋转圆盘带动离心圆盘转动，离心圆盘由此产生离心力，使浆液形成离心式飞溅，达到二次增压，进一步增强浆液的渗透效果；通过旋转圆盘的机械振动以及离心圆盘的机械振动，对周围砂层形成振动效果，使浆液和砂层中达到更好的混合效果，提高注浆加固效果。
Pulse grouting device and method for water-rich sand layer
一种用于富水砂层的脉冲注浆装置及注浆方法
WANG YUNLONG (author) / GUO YANXU (author) / MA XIAOQING (author) / SUN QIUYING (author) / TIAN YE (author) / LIU HAOTIAN (author) / KONG XIJUN (author)
2024-06-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Vibration grouting reinforcement method for water-rich sand layer
| European Patent Office | 2023
| European Patent Office | 2024