Pavement repairing method capable of resolving settlement velocity difference between hard soil and soft soil
A technology for road surface repair and hard soil layer, applied in the direction of road, road, bridge maintenance, etc., can solve problems such as the difference in settlement velocity between hard soil layer and soft soil layer, achieve short curing time, reduce construction time, and avoid bridgehead jumping. Effect
Active Publication Date: 2014-09-17
JIANGSU DINGTAI ENG MATERIAL
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Abstract
The invention relates to a pavement repairing method. The method comprises the following steps: using radar detection to detect the void position in the slab of s damaged bridge, marking the position of grouting holes 1 on the slab surface of locating and drilling, wherein the grouting holes reach the hard soil and are arranged in array, center distance of adjacent grouting holes is 10-20 cm and the void falls into the array range; penetrating the grouting holes 2 through the soft soil and intersecting with grouting holes 1, and arranging exhaust one-way valves at two ends of each grouting hole 2; grouting into the grouting holes 1 and using three-dimensional radar to detect the slurry grouting condition in the void, grouting holes 1 and grouting holes 2 on a real-time basis, and filling the void, the grouting holes 1 and grouting holes 2 with slurry, and stopping grouting; and after grouting, using detection radar to detect and review the filling portions, and re-drilling and grouting the position without slurry filling. The method solves the problem of settlement velocity difference between hard soil and soft soil.
Application Domain
Paving detailsBridge strengthening +1
Technology Topic
Soil horizonSoil science +3
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PUM
Property | Measurement | Unit |
Diameter | 3.0 ~ 15.0 | cm |
Compressive strength | >= 20.0 | mPa |
Bending strength | >= 15.0 | mPa |
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