面元科学仪器HVSR方法在地震易损性评估中的应用

<section data-role="\" style="\" padding:="" outline:="" max-width:="" color:="" font-family:="" helvetica="" pingfang="" hiragino="" sans="" microsoft="" yahei="" letter-spacing:="" text-align:="" text-wrap:="" background-color:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" p="" margin-bottom:="" clear:="" min-height:="" vertical-align:="" line-height:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" caret-color:="" font-size:="" font-family:="" section=""><p><img style="" src="@750w_750h_90Q"/></p><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" vertical-align:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" p="" line-height:="" letter-spacing:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" caret-color:="" font-size:="" font-family:="" span="" color:="">即地震易损性</span>”通常是评估该地区的场地条件。</p></span></section><p><br/></p><section data-role="\" style="\" padding:="" outline:="" max-width:="" color:="" font-family:="" helvetica="" pingfang="" hiragino="" sans="" microsoft="" yahei="" letter-spacing:="" text-align:="" text-wrap:="" background-color:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" p="" margin-bottom:="" clear:="" min-height:="" vertical-align:="" line-height:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" font-size:="" font-family:="" p="" margin-bottom:="" clear:="" min-height:="" vertical-align:="" line-height:="" letter-spacing:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" font-size:="" font-family:="" smartsolo="" igu-16hr="" 3c="" span="">智能地震检波器</span><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" font-family:="" font-size:="" span="">PNUGL同时也利用MASW方法获得浅地表剪切波速度和用来估计微动数据采集区域的基岩深度。</span><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" text-align:="" vertical-align:="" line-height:="" letter-spacing:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" strong=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" font-size:="" caret-color:="" font-family:="" img="" src="@750w_750h_90Q" section="" data-role="\" color:="" helvetica="" pingfang="" hiragino="" sans="" microsoft="" yahei="" letter-spacing:="" text-align:="" text-wrap:="" background-color:="" border-style:="" border-width:="" border-color:="" border-radius:=""></span></p><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" vertical-align:="" line-height:="" letter-spacing:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" span="" caret-color:="" font-size:="" font-family:="">微动数据通过开源软件OBSPY处理，设定傅里叶变化时窗为25s，并且在微动记录的开始和结束应用5% cosine taper，通过anti-triggering参数剔除了许多地震信号只保留微动数据做计算，以及其他处理工作，终提取了每台设备的HVSR曲线。</p></span><p></p><section data-tools="\" data-id="\" style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" section="" 10px="" text-align:=""><section style="\" padding:="" 0px="" 25px="" outline:="" max-width:="" box-sizing:="" overflow-wrap:="" break-word="" border-width:="" border-style:="" border-color:="" section="" border-box="" display:="" justify-content:=""><section style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" background-image:="" to="" right="" background-position:="" background-size:="" background-repeat:="" background-attachment:="" background-origin:="" background-clip:="" transform:="" section="" width:="" height:="" overflow:=""><br style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" section="" data-brushtype="\" 10px="" 0px="" font-size:="" letter-spacing:="" color:="" text-align:=""/><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" vertical-align:="" line-height:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" span="" color:="" font-family:="">曲线总共可以分成四类：</p></section></section></section></section><section data-width="\" style="\" 3px="" 0px="" padding:="" outline:="" max-width:="" box-sizing:="" overflow-wrap:="" break-word="" width:="" height:="" background-color:="" overflow:="" br="" border-box=""></section><section data-autoskip="\" style="\" 15px="" 0px="" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" text-align:="" line-height:="" letter-spacing:="" font-size:="" background-image:="" background-position:="" background-size:="" background-repeat:="" background-attachment:="" background-origin:="" background-clip:="" p="" clear:="" min-height:="" vertical-align:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" color:="" font-family:="" p="" clear:="" min-height:="" vertical-align:="" line-height:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" color:="" font-family:="" p="" clear:="" min-height:="" vertical-align:="" line-height:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" color:="" font-family:="" p="" clear:="" min-height:="" vertical-align:="" line-height:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" color:="" font-family:="" p="" margin-bottom:="" clear:="" min-height:="" text-align:="" vertical-align:=""><strong style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" caret-color:="" span="" font-size:="" font-family:=""><img style="text-wrap: wrap;" src="@750w_750h_90Q"/>四种类型的HVSR曲线</strong></span><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" vertical-align:="" line-height:="" letter-spacing:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" span="" caret-color:="" font-size:="" font-family:="">通过HVSR曲线得到的共振频率反演基岩深度，并根据峰值频率和水平比垂直运动的放大效应估计每台设备部署区域的地震易损性。基岩深度结果与MASW结果也相对一致。</p></span><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" text-align:="" vertical-align:="" line-height:="" letter-spacing:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" strong="" font-size:="" caret-color:="" font-family:=""><img style="text-wrap: wrap;" src="@750w_750h_90Q"/>基岩深度图</p></span></span></section><section data-role="\" style="\" padding:="" outline:="" max-width:="" color:="" font-family:="" helvetica="" pingfang="" hiragino="" sans="" microsoft="" yahei="" letter-spacing:="" text-align:="" text-wrap:="" background-color:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" section=""><p style="\" margin-bottom:="" padding:="" outline:="" max-width:="" clear:="" min-height:="" vertical-align:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" strong="" font-size:="" text-align:="" letter-spacing:="" margin:="" caret-color:=""><img style="text-wrap: wrap;" src="@750w_750h_90Q"/>地震易损性图</p></section><section data-role="\" style="\" padding:="" outline:="" max-width:="" color:="" font-family:="" helvetica="" pingfang="" hiragino="" sans="" microsoft="" yahei="" letter-spacing:="" text-align:="" text-wrap:="" background-color:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" p="" margin-bottom:="" clear:="" min-height:="" vertical-align:="" line-height:=""><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" font-size:="" font-family:="" span="">此次研究证明了HVSR方法在填海土地区域评估地震易损性的价值，它可以作为一种有效且低成本的方法替代大规模主动源折射或MASW测量方法。</span><span style="\" padding:="" outline:="" max-width:="" box-sizing:="" border-box="" overflow-wrap:="" break-word="" font-family:="" font-size:="" p="" margin-bottom:="" clear:="" min-height:="" text-align:="" vertical-align:="" line-height:="" letter-spacing:=""></span></section><p><br/></p><p><br/></p>