Vertical pres-stressed anchor rod gravity-type composite retaining wall and method for designing and constructing retaining wall

Abstract

The invention relates to the technical field of geotechnical engineering disaster prevention and control, in particular to a vertical pre-stress anchor rod gravity-type composite retaining wall which comprises a mortar building block stone wall arranged on a bed rock layer. Anchor holes are formed in the mortar building block stone wall and the bed rock layer in the vertical direction. An anchor rod is arranged inside each anchor hole. Cement mortar is filled between the anchor rod and the anchor holes. A concrete anchor beam is arranged at the top end of each anchor hole. The concrete anchor beams are arranged at the upper end of the mortar building block stone wall. A concrete anchor head is arranged on each concrete anchor beam. Compared with a traditional gravity-type retaining wall, the vertical pre-stress anchor rod gravity-type composite retaining wall has the advantages that elastic retraction of the anchor rods is utilized for applying pre-stressing force on the wall body, the weight of retaining wall masonry can be replaced, the sectional size of the retaining wall is reduced, and the integrality and the shearing strength of the wall body of the retaining wall are strengthened.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and control in geotechnical engineering, and specifically relates to the establishment of a vertical prestressed anchor and gravity retaining wall for controlling unstable slopes by comprehensively utilizing the characteristics of anti-slump force of prestressed anchors and gravity retaining walls. The design method of the composite support structure of the wall and the construction method of the structure. Background technique [0002] Landslide is a kind of natural disaster with wide distribution and great harm. With the rapid development of economic construction, a large number of slope engineering stability problems will be encountered in engineering fields such as water conservancy and hydropower, railway, highway, and mine construction. Slope reinforcement has become a common difficult problem in infrastructure construction in my country. Therefore, , the slope support and retain...

AI Technical Summary

Problems solved by technology

The anchor retaining wall is composed of reinforced concrete walls and anchors. It relies on the anchors anchored in the rock to provide horizontal tension to resist the lateral pressure of the soil. The anchors are generally horizontally inclined downwards by 10°-15°, which is the main force. However, the anchor rod must be anchored in the stable bedrock under the sliding surface of the slope. The farther the anchor rod is from the bottom of the wall, the longer the material length is required, and the anchor rod material exposed inside the slope cannot guarantee its corrosion resistance. performance, and the design service life is also difficult to guarantee

[0006] It can be seen that the traditional retaining wall support and reinforcement structure requires a large space for retaining walls at the slope toe, or the construction operation is complicated and the project cost is high, or the slope stability is disturbed by additional cutting. Has its shortcomings, and has limitations for special venues

Images