本文選題：崩塌災(zāi)害 + 信息量法　； 參考：《石家莊經(jīng)濟(jì)學(xué)院》2015年碩士論文

【摘要】：張家口西太平山崩塌災(zāi)害位于張家口市橋西區(qū)西太平山公園一帶,該崩塌災(zāi)害威脅著橋西區(qū)大境門辦事處、西山底社區(qū)和黃土場(chǎng)社區(qū)的8幢樓、31個(gè)院落,約1160人的生命財(cái)產(chǎn)安全,因此,開展西太平山崩塌地質(zhì)災(zāi)害研究工作是必要的和緊迫的。本文對(duì)張家口西太平山的地理位置、地質(zhì)條件、氣象條件等進(jìn)行概述,對(duì)研究區(qū)危巖體的工程地質(zhì)條件、危巖體特征、影響因素及危巖形成機(jī)制進(jìn)行分析研究�；谏鲜鲅芯拷Y(jié)果,采用極限平衡法計(jì)算崩塌體的穩(wěn)定性。介紹四種不同類型崩塌破壞計(jì)算方法(滑移式、傾倒式、拉裂式、膨脹式),分別對(duì)自然狀態(tài)、自然狀態(tài)+暴雨、自然狀態(tài)+地震三種工況進(jìn)行計(jì)算。將所得結(jié)果進(jìn)行比較,綜合評(píng)價(jià)研究區(qū)的危巖穩(wěn)定性。此外,根據(jù)落石崩落的運(yùn)動(dòng)形式分析計(jì)算危巖破壞后的速度、碰撞動(dòng)能、運(yùn)動(dòng)軌跡等。基于GIS軟件利用信息量法得出研究區(qū)的崩塌災(zāi)害危險(xiǎn)性分區(qū)圖,利用模糊綜合評(píng)價(jià)法得到研究區(qū)崩塌穩(wěn)定性分區(qū)圖。將危險(xiǎn)性分區(qū)圖與崩塌穩(wěn)定性分區(qū)圖進(jìn)行比較,并與極限平衡法計(jì)算的危巖分布圖進(jìn)行比較,以此驗(yàn)證評(píng)價(jià)體系建立的正確與否。極限平衡法評(píng)價(jià)崩塌災(zāi)害的穩(wěn)定性局限于單個(gè)危巖體,以上兩種崩塌災(zāi)害評(píng)價(jià)方法是區(qū)域性的,起到對(duì)極限平衡法的驗(yàn)證與補(bǔ)充的作用。通過對(duì)張家口西太平山崩塌危巖穩(wěn)定性的研究,得出研究區(qū)中選取得54個(gè)危巖體(帶)中有15個(gè)在自然狀態(tài)下屬于基本穩(wěn)定,在暴雨和地震的影響下成為欠穩(wěn)定和不穩(wěn)定。有11個(gè)在自然狀態(tài)下屬于欠穩(wěn)定,在暴雨和地震的影響下成為不穩(wěn)定。此外將極限平衡法評(píng)價(jià)結(jié)果與基于信息量法和模糊綜合評(píng)價(jià)法所得的分區(qū)圖進(jìn)行比較,88.9%的危巖體(帶)落在了崩塌穩(wěn)定性評(píng)價(jià)圖的欠穩(wěn)定區(qū),全部的危巖體(帶)落在高危險(xiǎn)性分區(qū)中,以此驗(yàn)證了研究區(qū)崩塌災(zāi)害危險(xiǎn)性分區(qū)的合理性。
[Abstract]:The collapse disaster of West Taiping Mountain in Zhangjiakou City, located in the area of West Taiping Mountain Park in Qiaoxi District of Zhangjiakou City, threatens the Daaaomen office in Qiaoxi District, 8 buildings and 31 yards in the community of Xishan bottom and Loess Farm. About 1160 people are safe in life and property, so it is necessary and urgent to carry out the research on the geological hazards of the collapse of the West Taiping Mountain. In this paper, the geographical location, geological conditions and meteorological conditions of the west Taiping Mountain in Zhangjiakou are summarized, and the engineering geological conditions, the characteristics of the dangerous rock mass, the influencing factors and the formation mechanism of the dangerous rock mass in the study area are analyzed and studied. Based on the above results, the limit equilibrium method is used to calculate the stability of collapse body. This paper introduces four kinds of calculation methods of collapse and failure (slip type, toppling type, tension type, expansion type), and calculates the natural state, the natural state rainstorm and the natural state earthquake respectively. The results are compared to evaluate the stability of dangerous rock in the study area. In addition, the velocity, collision kinetic energy and motion track of dangerous rock after destruction are analyzed and calculated according to the motion form of falling rock caving. Based on GIS software, the zoning map of collapse hazard is obtained by the method of information content, and the zoning map of collapse stability is obtained by using fuzzy comprehensive evaluation method. The hazard zoning map is compared with the collapse stability map and the dangerous rock distribution map calculated by the limit equilibrium method is compared to verify the correctness of the evaluation system. The stability of limit equilibrium method for evaluating collapse disaster is limited to a single dangerous rock mass. The above two methods are regional and play an important role in the verification and supplement of limit equilibrium method. Through the study of the stability of the collapse rock in the west Taiping Mountain of Zhangjiakou, it is concluded that 15 of the 54 dangerous rock masses (belts) selected in the study area are basically stable in the natural state, and become unstable and unstable under the influence of heavy rain and earthquake. Eleven of them are unstable under natural conditions and unstable under the influence of rainstorms and earthquakes. In addition, the evaluation results of limit equilibrium method are compared with the zoning map based on information content method and fuzzy comprehensive evaluation method. 88. 9% of the dangerous rock mass (zones) fall in the understable region of the collapse stability evaluation map. All the dangerous rock masses (zones) fall in the high risk zone, which verifies the rationality of the danger zoning of collapse disaster in the study area.
【學(xué)位授予單位】：石家莊經(jīng)濟(jì)學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P642.21

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