Anchor rod lattice slope protection construction method based on tunnel underground excavation section permanent heading slope

Abstract

The invention provides an anchor rod lattice slope protection construction method based on a tunnel underground excavation section permanent heading slope. The anchor rod lattice slope protection construction method comprises the following steps of S1, surveying and setting out, specifically, anchor rod construction is completed, the slope ratio and the like of an excavated slope body are manuallyfinished and meet requirements, and then the position of a lattice beam and the construction initial range are surveyed; S2, slope surface grooving, specifically, a groove is excavated manually according to the position and size of the lattice beam measured by a measurer, the groove is excavated by 20 cm outside structural lines of the two sides of the lattice beam, and a formwork and a supporting structure can be installed conveniently; S3, reinforcing steel bars machining and binding; S4, formwork installing, specifically, bamboo plywood with the thickness of 15 mm is adopted as the formwork to be spliced according to the design size, square timber with the length of 5 * 10 cm is adopted as straps, and the surface of the formwork is cleared up and brushed with a release agent; and S5, concrete pouring. According to the anchor rod lattice slope protection construction method, the anchor rod lattice is arranged stably, casting bodies are not prone to deformation, all structures of theanchor rod lattice can be stressed evenly, and the slope maintenance stability is good.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for slope protection with anchor lattice structure based on the permanent side slope of a tunnel excavation section. Background technique [0002] The lattice beam slope protection technology is to transfer the earth pressure on the surface of the slope to the lattice beam through the lattice beam and the anchor rod, and then transmit the earth pressure from the lattice beam to the anchor rod, and the anchor rod transfers the earth pressure transmitted from the lattice beam to the lattice beam. Transfer to the stable soil layer to achieve the purpose of maintaining the stability of the slope and preventing the collapse of the slope from affecting people's lives or property safety. Therefore, as far as the lattice itself is concerned, it is only a force-transmitting structure, and the reinforced anti-sliding force is mainly provided by the ancho...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method of anchor lattice slope protection based on the permanent side slope of the tunnel excavation section, to solve the problem that the anchor lattice structure is not easy to fix during the construction process of the existing anchor lattice structure, which causes the pouring body to be easily deformed , and the existing anchor lattice construction method tends to make the force of the lattice anchor uneven, resulting in the technical problem of poor stability of slope maintenance

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