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在(zai)地(di)(di)(di)(di)(di)質(zhi)災(zai)(zai)(zai)害易發(fa)區(qu)(qu)內進(jin)行(xing)擬(ni)建(jian)工程(cheng)(cheng)建(jian)設、城(cheng)市、村莊、堡鎮規劃以及進(jin)行(xing)礦床開發(fa)等都要進(jin)行(xing)地(di)(di)(di)(di)(di)質(zhi)災(zai)(zai)(zai)害勘查、設計、施工、危(wei)險性評(ping)估工作。地(di)(di)(di)(di)(di)質(zhi)災(zai)(zai)(zai)害類型包括崩塌、滑坡、泥石(shi)流、地(di)(di)(di)(di)(di)面塌陷（含巖(yan)溶塌陷和礦山(shan)采(cai)空塌陷）、地(di)(di)(di)(di)(di)裂縫和地(di)(di)(di)(di)(di)面沉(chen)降及不穩定斜坡等。地(di)(di)(di)(di)(di)質(zhi)災(zai)(zai)(zai)害評(ping)估工作的(de)任務是基本查明(ming)建(jian)設區(qu)(qu)周(zhou)邊地(di)(di)(di)(di)(di)質(zhi)環境條件、地(di)(di)(di)(di)(di)質(zhi)災(zai)(zai)(zai)害的(de)類型分布、規模、危(wei)險程(cheng)(cheng)度以及對(dui)工程(cheng)(cheng)建(jian)設的(de)影響，為項目建(jian)設及建(jian)成后防災(zai)(zai)(zai)減災(zai)(zai)(zai)提供(gong)科學(xue)依據。
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