CAJ | 학술논문

广州市白云区金沙洲一带因受武广高铁隧道等一大批重点工程项目施工中大量抽排地下水的影响，诱发了多次较为严重的地质灾害。文章在多年实地调查的基础上，系统分析其地质灾害致灾因子，建立了地质灾害易发程度分区的评价指标体系，采用信息量法，按照地质灾害易发程度对各评价单元划分等级，将金沙洲地区划分为4个区：高易发区、中易发区、低易发区和不易发区。其中，武广高铁隧道通过的中南部地区属于地质灾害高易发区，该区隐伏岩溶发育，地质环境脆弱，不适宜大规模开发建设；浔峰断裂（F3）、沙贝断裂（F4）及保利西子湾断裂（F5）3条断裂通过的东部地区为地质灾害中易发区，该区发育有不良岩土体，区内主要发生地面沉塱降地质灾害；东南部大山组和中部测水组非可溶岩地层区为地质灾害低易发区，该区以埋藏型可溶岩分布为主，总体发生地质灾害的概率较小；西部丘陵地带为地质灾害不易发区，为非可溶岩区，不具备孕育地质灾害的形成环境。
엄주시백운구금사주일대인수무엄고철수도등일대비중점공정항목시공중대량추배지하수적영향，유발료다차교위엄중적지질재해。문장재다년실지조사적기출상，계통분석기지질재해치재인자，건립료지질재해역발정도분구적평개지표체계，채용신식량법，안조지질재해역발정도대각평개단원화분등급，장금사주지구화분위4개구：고역발구、중역발구、저역발구화불역발구。기중，무엄고철수도통과적중남부지구속우지질재해고역발구，해구은복암용발육，지질배경취약，불괄의대규모개발건설；심봉단렬（F3）、사패단렬（F4）급보리서자만단렬（F5）3조단렬통과적동부지구위지질재해중역발구，해구발육유불량암토체，구내주요발생지면침랑강지질재해；동남부대산조화중부측수조비가용암지층구위지질재해저역발구，해구이매장형가용암분포위주，총체발생지질재해적개솔교소；서부구릉지대위지질재해불역발구，위비가용암구，불구비잉육지질재해적형성배경。
With the rapid development of the city of Guangzhou, human engineering activities have exacerbated the natural environment. In recent years, a large number of key projects construction have been completed, such as the Wuhan-Guangzhou high-speed railway, several serious geological hazards have occured in Jinshazhou area. In this paper, on the basis of the field surveys for years, the causal factors of the geological disasters are analyzed systematically, an evaluation index system is established, and the evaluation methods of geological hazard susceptible degree are presented. According to the geological disaster evaluation grade, Jinshazhou is divided into four regions, which are high risk region, medium risk region, low risk region and least risk region. The central and southern parts of Jinshazhou where the Wuhan-Guangzhou high-speed rail tunnel passes through are of high risk region of geological hazard occurrence. In that region there are buried karst areas, the geological environment is fragile, and large-scale construction is inappropriate. The eastern part of Jinshazhou, where Xunfeng fault(F3), Shabei fault(F4) and Baoli Xiziwan fault(F5) pass through, are of medium risk region. In the region there are adverse rock soil masses, and the major geological disaster is land subsidence. The southeast and central parts of Jinshazhou, where there are less soluble rock strata, are of low risk region. The western part of Jinshazhou is a hilly area and is of the least risk region, where there develops no karst and have no basic condition for geological disasters.