【正文】 ...............................................6（一）地形地貌 ...................................................................................................................................6（二）工程地質(zhì) ...................................................................................................................................6新村隧道 ..............................................................................................................................................6（三）水文地質(zhì)條件 ...........................................................................................................................8（四）氣象、水文 ...............................................................................................................................9（五）地震 ...........................................................................................................................................9（六）圍巖級(jí)別及特征 .......................................................................................................................9（七）隧道設(shè)計(jì)概況 .........................................................................................................................12隧道整體設(shè)計(jì) ...........................................................................................................................12隧道支護(hù)襯砌結(jié)構(gòu)類(lèi)型 ...........................................................................................................15施工組織概況 ...........................................................................................................................16三、總體風(fēng)險(xiǎn)評(píng)估 ..................................................................................................................................18（一）總體風(fēng)險(xiǎn)評(píng)估思路及方法 .....................................................................................................18概念 ...........................................................................................................................................18評(píng)估思路 ...................................................................................................................................18評(píng)估方法 ...................................................................................................................................18（二）指標(biāo)體系法 .............................................................................................................................18（三） .................................................................................................................................................193 王桑隧道工程總體風(fēng)險(xiǎn)評(píng)估指標(biāo)體系 ..........................................................................................214 楓木界隧道工程總體風(fēng)險(xiǎn)評(píng)估指標(biāo)體系 ......................................................................................22（四）分值計(jì)算 .................................................................................................................................23分值選擇 ...................................................................................................................................231）新村隧道 分值選擇 ...................................................................................................................232）向南隧道分值選擇 ...................................................................................................................243）王桑隧道分值選擇 ...................................................................................................................243）楓木界隧道分值選擇 ...............................................................................................................25新村、向南、王桑、楓木界隧道總體評(píng)估 ...........................................................................25四、向南、楓木界隧道專(zhuān)項(xiàng)風(fēng)險(xiǎn)評(píng)估 ..................................................................................................26（一）概念 .........................................................................................................................................26（二）評(píng)估思路 .................................................................................................................................26（三）施工作業(yè)工序分解 .................................................................................................................26（四）風(fēng)險(xiǎn)源普查 .............................................................................................................................27（五）風(fēng)險(xiǎn)分析 .................................................................................................................................284 / 55（六）風(fēng)險(xiǎn)估測(cè) .................................................................................................................................30風(fēng)險(xiǎn)估測(cè)方法 ...........................................................................................................................30量化分值標(biāo)準(zhǔn) ...........................................................................................................................30風(fēng)險(xiǎn)估測(cè) ...................................................................................................................................31五、向南、楓木界隧道重大風(fēng)險(xiǎn)源評(píng)估 ..............................................................................................32（一）重大風(fēng)險(xiǎn)源評(píng)估思路 .............................................................................................................32（二）風(fēng)險(xiǎn)矩陣的建立 .....................................................................................................................32（三）施工管理引發(fā)的事故可能性評(píng)估指標(biāo) .................................................................................33（四）坍塌事故風(fēng)險(xiǎn)評(píng)估 .................................................................................................................35可能性評(píng)估 ——建立評(píng)估指標(biāo) ...............................................................................................35可能性評(píng)估 ——確定可能性等級(jí) ...........................................................................................36坍塌事故危險(xiǎn)性評(píng)估 ......................................................................................