Diaphragm wall protection layer plate

Abstract

The invention provides a diaphragm wall protection layer plate, namely an integral piece comprising a board and board ribs. The board is a plane, the strip-shaped board ribs are fastened to the middle of one side of the board at equal interval and are integrated with the board, and four corners of the board serve as anchorage zones which are free of board ribs inside. Ordinarily, the board is 2-10mm thick, and the board ribs are 2-8mm thick. The diaphragm wall protection layer plate has the effects that the thickness and quality of a diaphragm wall during excavation of a foundation pit and on a basin dredging side particularly can be guaranteed, damage, caused by necking down, partial collapse and other adverse factors, to a diaphragm wall structure can be greatly reduced and the safety and durability of the diaphragm wall structure are remarkably improved, and the diaphragm wall protection layer plate is simple to manufacture and use.

Description

technical field [0001] The invention relates to a ground connection wall accessory component capable of ensuring the thickness of the ground connection wall and the quality of the wall body, in particular to a ground connection wall protective laminate. Background technique [0002] In the past construction, such as figure 2 , 3 As shown, the thickness of the ground connection wall or the thickness of the protective layer of the main reinforcement is mainly guaranteed by the backing plates 9 on both sides of the steel cage. From the perspective of the wall surface, the ground connection walls built under some unfavorable geological conditions often have some quality defects. For example, the stability of the mud skin in the loose sand layer is poor, and the cement, groundwater, and cations in the foundation will gradually reduce the properties of the mud. In addition to the fluctuation of the concrete liquid level, the groove wall may partially collapse in the soil layer d...

AI Technical Summary

Problems solved by technology

If the foundation pit is not excavated, even if there are certain defects in the quality of the wall concrete, due to its relatively closed environment, it is difficult for air and water to directly contact the steel bars 5, so the corrosion rate of the steel bars 5 is relatively slow; once excavated, The closed environment where the excavation surface 8 of the ground connection wall is destroyed, and the wall surface is directly exposed to air or water. The intervention of these substances accelerates the corrosion of the steel bars 5 of the ground connection wall, and the safety of the ground connection wall structure will be further threatened

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