Reinforced retaining wall and construction method thereof

Abstract

The invention discloses a reinforced retaining wall, wherein a geogrid is laid every 50 centimeters inside the retaining wall. The invention further provides a construction method of the reinforced retaining wall. The construction method comprises the following steps: step 1, the surface of a construction land is cleaned; step 2, one geogrid is laid, wherein an ecological bag is laid on the periphery of the geogrid, and the ecological bag is wrapped in the geogrid reversely; step 3, the area, surrounded by the ecological bag, of the geogrid is paved, backfilled and mixed; step 4, the step 2 and the step 3 are executed repeatedly till the height of the reinforced retaining wall reaches an engineering design value. Under the condition that labor force and construction machines are the same, the construction period of the reinforced retaining wall is shorter than that of a conventional gravity retaining wall which is additionally provided with a protection slope, and engineering cost is also lowered substantially. Meanwhile, due to the fact that the ecological bag is filled with loess, chemical fertilizer and grass seeds, grass grows out of the ecological bag after a period of time, the retaining wall is integrated with the surroundings after a long term, and the requirement of an environment-friendly society is met.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a reinforced retaining wall. The invention also relates to a construction method for a reinforced retaining wall. Background technique [0002] With the strengthening of national economic strength, my country's high-voltage transmission lines gradually present the characteristics of long distance and large capacity. At present, long-distance transportation with 500KV cable lines has been widely used. However, in recent years, due to the increasingly tense construction land situation, substations are generally selected in mountainous areas, hills and other places, and the amount of earth and stone works required for station construction is relatively large. The maximum excavation slope height of Ganzhou South 500kV substation project is 27 meters, the maximum filling height is 32 meters, the average filling height is 18 meters, and the retaining wall length is about ...

AI Technical Summary

Problems solved by technology

If the conventional treatment method is adopted, it is necessary to clear the foundation, build the foundation, build the gravity retaining wall, backfill and compact the earth and stone, clean and compact the earth and stone slope, and build the slope protection with mortar and block stones. The project cost is high, It takes a long time, and the gravity retaining wall is only suitable for the areas where the filling height is less than 8 meters and the construction land is relatively tight. Therefore, it is necessary to design a retaining wall with a short construction period and low engineering cost to achieve the goal of 500kV substation construction. need

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