Electric transmission line narrow-base steel tube tower plate type prestress pressure-bearing type anchor rod structure

Abstract

The invention provides an electric transmission line narrow-base steel tube tower plate type prestress pressure-bearing type anchor rod structure. The electric transmission line narrow-base steel tube tower plate type prestress pressure-bearing type anchor rod structure comprises a pressure-bearing base, an anchor rod and a bag, one end of the anchor rod is anchored on the pressure-bearing base, and the other end of the anchor rod is connected with the bag; and the anchor rod is of a hollow structure, the hollow structure communicates with the interior of the bag, and a waterproof grouting material is injected into the bag through the hollow structure. The electric transmission line narrow-base steel tube tower plate type prestress pressure-bearing type anchor rod structure has the beneficial effects that the end pressure of the expanded bag is used for changing the active soil pressure of the soil body around the bag into the passive soil pressure, the compactness of the surrounding soil body and the cohesive force and friction force bearing of the anchoring section and the surrounding soil body are changed, the anchoring force of the lower section of the anchor rod structure is improved, and therefore, under the basic principle of meeting the acting force requirement of the iron tower foundation, the requirements of the narrow-base steel tube tower of the power transmission line on path width and economical efficiency are met.

Description

technical field [0001] The present disclosure relates to the technical field of anchor rods, in particular to a narrow-base steel pipe tower plate prestressed pressure-bearing anchor rod structure for transmission lines. Background technique [0002] With the continuous development of the national economy and the rapid expansion of the city scale, the demand for electricity is also growing rapidly. Large-capacity transmission projects have emerged one after another. The number of high-voltage transmission lines in urban areas is also increasing, and the corridors of high-voltage lines are becoming more and more tense. At present, urban transmission lines generally adopt two methods: steel pipe pole lines and cables. Due to the high cost of the cable body, the difficulty in construction, installation, transportation and maintenance, especially in the restricted area of ​​the underground pipe gallery, the use of cables still has great limitations. The cost of steel pipe poles...

AI Technical Summary

Problems solved by technology

However, compared with the ordinary iron tower foundation, the narrow base steel pipe tower reduces the root opening size of the foundation, resulting in an increase in the foundation force, and the ordinary foundation form is difficult to meet the structural and economical requirements

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