in 1969 a (51mm) bituminous concrete overlay was placed on the concrete deck . 1969年在混凝土板上鋪設了51mm厚的瀝青混凝土鋪裝層。
the site management area, in the immediate pre-games period, ensures that temporary infrastructure and overlay are installed in accordance with developed plans to meet all venue and facility needs 在奧運會即將召開的最后階段,場地管理部門確保臨時性基礎設施和臨建的安裝符合預定的計劃,并能滿足所有場館和設施方面的需要。
research on theory and methods of the overlay on existing rigid concrete pavements, which is on semi-infinite elastic medium to moving load, is involved in this paper . and research will be connected with ndt . the disquisition on separable overlay is highlighted 本文討論移動荷載下、彈性半空間地基上的剛性道面水泥混凝土加鋪層的動態(tài)設計理論和計算方法,并試圖把此套方法與場道無損檢測評估系統(tǒng)結合起來。
and the thickness of the overlay is achieved . the target of this paper is to set up connection between ndt and the methods . if flexibility of the overlay is measured, the thickness of it is gotten straightly through this connection 然后將解析解的表達式經過一系列恒等變換,得到二維有限區(qū)域上二重積分的形式;進行二維fourier反變換,利用高斯積分編制計算程序,求出數值解,并以此為基礎通過目標優(yōu)化得到加鋪層厚度。
and the thickness of the overlay is achieved . the target of this paper is to set up connection between ndt and the methods . if flexibility of the overlay is measured, the thickness of it is gotten straightly through this connection 然后將解析解的表達式經過一系列恒等變換,得到二維有限區(qū)域上二重積分的形式;進行二維fourier反變換,利用高斯積分編制計算程序,求出數值解,并以此為基礎通過目標優(yōu)化得到加鋪層厚度。