Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grouting method for void area below dam panel
The invention provides a grouting method for a void area below a dam panel. The grouting method comprises the following steps that ground penetrating survey lines are evenly distributed on the surface of the panel; detecting the void area through a ground penetrating device at each ground penetrating measuring line, and determining the distribution boundary of the void area; determining the void thickness h1, wherein the void thickness h1 is the distance from the bottom surface of the panel to the bottom of the void area; the diffusion radius R of the injected slurry is obtained according to the panel gradient alpha, the initial viscosity lambda1 of the slurry, the grouting time t and the void thickness h1; according to the panel gradient alpha and the diffusion radius R, the hole arrangement distance L1 of the grouting holes is obtained; according to the slope alpha of the panel, the diffusion radius R, the density rho1 of the expanded slurry and the void thickness h1, the single-hole grouting amount M of the slurry is obtained; and according to the hole arrangement distance L1, a plurality of grouting holes are formed in the void area, and slurry with the single-hole grouting amount M is injected into the void area through the grouting holes. According to the invention, the slurry injected into the void area can be accurately controlled, and the void area is prevented from still existing or the panel is prevented from being deformed.
本发明提供堤坝面板下脱空区域的注浆方法，包括以下步骤：在面板表面均匀布设探地测线；在每个探地测线处通过探地装置对脱空区域进行探测，确定脱空区域的分布边界；确定脱空厚度h1，脱空厚度h1为面板底面至脱空区域底部的距离；根据面板坡度α、浆液初始黏度λ1、注浆时间t和脱空厚度h1，得到注入浆料的扩散半径R；根据面板坡度α和扩散半径R，得到注浆孔的布孔间距L1；根据面板坡度α、扩散半径R、浆料膨胀后密度ρ1和脱空厚度h1，得到浆料的单孔注浆量M；根据布孔间距L1，在脱空区域布设若干注浆孔，并通过注浆孔往脱空区域内注入单孔注浆量M的浆料。本发明能够精确控制注入脱空区域的浆料，避免导致脱空区域仍然存在或导致面板的变形。
Grouting method for void area below dam panel
The invention provides a grouting method for a void area below a dam panel. The grouting method comprises the following steps that ground penetrating survey lines are evenly distributed on the surface of the panel; detecting the void area through a ground penetrating device at each ground penetrating measuring line, and determining the distribution boundary of the void area; determining the void thickness h1, wherein the void thickness h1 is the distance from the bottom surface of the panel to the bottom of the void area; the diffusion radius R of the injected slurry is obtained according to the panel gradient alpha, the initial viscosity lambda1 of the slurry, the grouting time t and the void thickness h1; according to the panel gradient alpha and the diffusion radius R, the hole arrangement distance L1 of the grouting holes is obtained; according to the slope alpha of the panel, the diffusion radius R, the density rho1 of the expanded slurry and the void thickness h1, the single-hole grouting amount M of the slurry is obtained; and according to the hole arrangement distance L1, a plurality of grouting holes are formed in the void area, and slurry with the single-hole grouting amount M is injected into the void area through the grouting holes. According to the invention, the slurry injected into the void area can be accurately controlled, and the void area is prevented from still existing or the panel is prevented from being deformed.
本发明提供堤坝面板下脱空区域的注浆方法，包括以下步骤：在面板表面均匀布设探地测线；在每个探地测线处通过探地装置对脱空区域进行探测，确定脱空区域的分布边界；确定脱空厚度h1，脱空厚度h1为面板底面至脱空区域底部的距离；根据面板坡度α、浆液初始黏度λ1、注浆时间t和脱空厚度h1，得到注入浆料的扩散半径R；根据面板坡度α和扩散半径R，得到注浆孔的布孔间距L1；根据面板坡度α、扩散半径R、浆料膨胀后密度ρ1和脱空厚度h1，得到浆料的单孔注浆量M；根据布孔间距L1，在脱空区域布设若干注浆孔，并通过注浆孔往脱空区域内注入单孔注浆量M的浆料。本发明能够精确控制注入脱空区域的浆料，避免导致脱空区域仍然存在或导致面板的变形。
Grouting method for void area below dam panel
堤坝面板下脱空区域的注浆方法
XU PENG (Autor:in) / ZHAO PENG (Autor:in) / WANG CHAOJIE (Autor:in) / QIAO GUOBIN (Autor:in) / GUO LIJUN (Autor:in) / LU JINGE (Autor:in) / ZHAO XIANFENG (Autor:in) / PAN YANHUI (Autor:in) / LIU HUI (Autor:in) / ZOU QINGSONG (Autor:in)
12.03.2024
Patent
Elektronische Ressource
Chinesisch
Void Detection and Grouting Process
| NTIS | 1983
Subsidence Mitigation Using Void Fill Grouting
| ASCE | 2003
| Europäisches Patentamt | 2023
Subsidence Mitigation Using Void Fill Grouting
| British Library Conference Proceedings | 2003
Developments in Vacuum Void Grouting and Slablifting
| British Library Conference Proceedings | 1992