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這些鋼筋直徑在 英尺( )和 英尺( )之間,表面有刻痕以確保粘住混凝土。 19. In New York city, the Columbia Broadcasting system. Building, designed by Eero Saarinen in 1962, from column center. 在紐約城由 Eero Saarinen 亍 1962 年設(shè)計(jì)的哥倫比亞廣播系統(tǒng)大樓有一個(gè)由 5 英尺( 米)寬相鄰柱的中心距為 10 英尺( 3 米)的 混凝土柱組成的環(huán)形墻。 17. Called grout, the mixture is packed very tightly into space between the top of the new footing and the underside of the old footing. 所謂的泥漿,即混合物被壓實(shí)緊密,送到新基礎(chǔ)頂部和舊基礎(chǔ)下部之間三英寸空間里的混合物被緊密壓實(shí)。 15. When the new bearing stratum reached, forms and placed in the pit, and concrete is pared from the new bearing stratum up within 3in(76mm) of the bottom of the old footing. 當(dāng)?shù)竭_(dá)新的承壓 層時(shí)模板被安置在基坑里,從新的承壓層以上向舊的基礎(chǔ)底部以下三英寸空間,向上澆灌 76MM 厚的混凝土。 14. Underpinning of foundation is of ten necessary, and it may either remedial or precautionary. Remedial underpinning is used to correct defects in existing foundation which may have settle excessively. 補(bǔ)救型或預(yù)防型的地基托換通常是有必要的。 12. The word foundation may mean the earth itself ,something placed in or the earth to provide support ,or a bination of the