Construction method of geogrid reinforced clay edge-covered tailing subgrade
A geogrid reinforcement and geogrid technology, applied in the directions of roads, roads, buildings, etc., can solve the problems of not considering the installation of drainage facilities, unfavorable long-term stability of the roadbed, and unfavorable long-term performance of the roadbed, so as to reduce the infiltration of precipitation and capillary water rise, improve deformation and failure characteristics, reduce the effect of uneven settlement
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[0032] The present invention will be further described in detail below with reference to the drawings and specific embodiments.
[0033] The invention discloses a construction method of a geogrid-reinforced clay-bound tailings sand subgrade. The subgrade structural section is as follows figure 1 As shown, it includes a tailing sand subgrade main body 1 placed on the ground surface, a clay edging layer 2 and a capping layer 3 on the upper surface arranged on both sides of the tailing sand subgrade main body 1, underneath the tailing sand subgrade main body 1 A sand-gravel cushion 4 along the direction of the roadbed. The sand-gravel cushion 4 is set under the ground surface. Two-way geogrids and permeable geotextiles are laid between the sand-gravel cushion 4 and the main body 1 of the tailings sand subgrade in sequence from bottom to top , The one-way geogrid 5 is laid horizontally and at intervals in the clay edging layers 2 on both sides of the roadbed, and the one-way geogrid ...
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