1 预制砼楔合块的标号、型式及尺寸预制砼楔合块的主要作用是防护堤坝水土流失,增加工程美观效果,在运行和施工过程中,其上部主要承受人群荷载,所以楔块内部不需要配置钢筋,砼标号选用C15即可。其型式和常用尺寸见下图(单位:cm),预制时要求砼块尺寸准确,不得出现翘曲、缺角。其中A而一般为上面,要求光滑平整,不得出现麻面,平整度小于±2mm,对角线误差小于±2mm;B面为下面,平整度小于±5mm;楔块中部为一排水孔,孔径一般以铁锹杠把能插入为宜, 1 Prefabricated concrete wedge block of the label, type and size Prefabricated concrete wedge block the main role is to protect the dam soil and water loss, increase engineering aesthetic effect, in the operation and construction process, the upper part of the population to bear the main load, so the wedge internal Need to configure the reinforcement, concrete label selection C15 can be. The type and common size shown in the following chart (unit: cm), precast concrete block size requirements, no warping, missing corners. Where A is generally above, requiring a smooth and smooth, not Mopian, flatness is less than ± 2mm, diagonal error is less than ± 2mm; B side is below, the flatness is less than ± 5mm; wedge a drainage hole for the central aperture General to shovel bar can be inserted as appropriate,