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一、前言 振动公害问题在环境工程中占有很重要的位置。例如日本1973年振动和噪声公害达到顶峰,目前虽有减少的趋势,但仍占全部公害的30％,属于典型的七大公害(大气、水质、土壤污染、振动、噪声、地基下沉、恶臭等)中最多的一种。振动公害问题很大程度上与土动力学相关,因而工业环境振动中的土动力学问题已日益为工程界所关注。其主要研究对象为振源机制、振动的传播、防振对策及防振标准等,如图1所示。图中传输路线①～③开关表示非断流开关(由于波在土体中的衍射和透射而不能完全阻断),即防振部位。
I. INTRODUCTION The issue of vibration hazards occupies a very important position in environmental engineering. For example, Japan’s vibration and noise pollution peaked in 1973, although it is currently decreasing, it still accounts for 30% of all public hazards. It is a typical seven major hazards (atmosphere, water quality, soil pollution, vibration, noise, foundation sinking, bad smell). Etc.) The most common one. The problem of vibration hazards is related to soil dynamics to a great extent, so the problem of soil dynamics in the vibration of industrial environments has been increasingly concerned by the engineering community. Its main research object is the vibration source mechanism, vibration propagation, anti-vibration countermeasures and anti-vibration standards, as shown in Figure 1. In the figure, the transmission lines 1 to 3 switches represent non-breaking switches (due to the diffraction and transmission of waves in the soil and cannot be completely blocked), ie, vibration-proof positions.