Slot type earth retaining block

Abstract

The invention discloses a neck type retaining block which comprises a front surface, a rear surface, a top surface, a bottom surface, a left side and a right side, wherein, the middle of the top surface is provided with a cavity throughout the top surface and the bottom surface; the top surface at the front side of the cavity is also provided with a horizontal convex prism; the bottom surface below the convex prism is provided with a groove matching with the convex prism; the top surface and the bottom surface of the rear side of the convex prism and the groove are respectively provided with a arc embossment and a groove; and the right and the left sides are provided with two vertical concave grooves symmetrically, when construing retaining walls, the arc embossment and the concave groove at the upper and lower retaining walls are matched with each other for fixing reinforcing materials, the space left by the splicing of the vertical grooves on two adjacent retaining blocks of the same floor is arranged above the upper cavity of the lower retaining block, so as to form a space for filling gravels and soils. The retaining block is provided with the matching embossment and concave groove to prevent the reinforced materials between retaining blocks from abrasion and damage, and at the same time, the upper and the lower retaining blocks are connected with each other in a clamping form, thus improving the construction speed.

Description

technical field [0001] The invention relates to a slot-type earth retaining block and an earth retaining wall constructed by using the earth retaining block. Background technique [0002] The earliest application of the concept of reinforced soil appeared on the ziggurats of ancient Assyria and Babylon, which has a history of more than 2,500 to 3,000 years; Very similar, the filling area behind the wall is composed of gravel layer and soil with wicker added; in the early 1920s, some retaining walls made of wood and similar materials were used in the United States; since 1960, self-locking concrete blocks came out Since then, the block reinforced retaining wall has been well applied and developed, and it still has broad development prospects because it has many advantages: its own structure is a flexible structure, and it has strong adaptability to earthquakes and high groundwater levels The required foundation bearing capacity is not high; the construction progress is fast;...

AI Technical Summary

Problems solved by technology

[0005] At present, the retaining blocks on the market are inter-embedded, that is, different widths are left at the front or rear edge notches, and a certain angle is naturally formed after being built, which limits the masonry of vertical retaining walls.

The rear edge or groove of some blocks is set at right angles or angular during production. When the reinforced material is in contact with the rear edge or notch, it is easy to cause wear to the reinforced material, and it is easy to cause stress concentration. As a result, when the tensile force of the reinforcement is small, the reinforcement material will be broken and shear failure will occur, and it will be damaged when the design strength of the reinforcement material is not reached, resulting in additional economic waste

Even though the rear edge is set in a circular arc shape, so that the reinforced material is in full contact with the rear edge, but because of the circular arc, the contact friction with the geogrid is reduced, and the tensile strength of the reinforced material cannot be fully exerted.

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