论文总字数：56854字

摘 要

本文从资料收集、勘察探测两个方面入手，对连徐高速客运专线沿线工作区域及近场区域的地质灾害进行了分析与评估，并由工程建设安全性、营运维护安全性的角度出发，出具地灾勘察设计初步评述报告并提出具备可行性的建议。本次勘察设计任务的主要完成手段是资料收集，结合前人工作与既有文献对连徐高速客运专线沿线的地质环境条件进行概述并从实际地勘资料出发结合所学工程地质知识对既发的或可能发生的地质灾害进行安全性评价。

对于重大建设项目而言，为了将来运营、维护时期相关人员与国家财产的安全，需要起建立完备、良好的地质环境条件资料存档并完成地质灾害防治与预防对策。在工程建设可行性研究阶段，地灾勘察与防治对策将助力绕避地灾地区、规划建设场地、充分守护工程建设安全性与可靠性，也可以就保护水土给出建议；在工程建设阶段，对既发灾害进行防治与整治有利于加快建设进度、提高建设质量、保障建设成果、保证建设目标；在工程项目运营与维护阶段，地灾勘察有助于评估场地安全性与人工影响、对工程建设基础进行查漏补缺、对未来运行可能面临灾害进行预防、未雨绸缪；在工程项目生命周期的末端，地灾勘察将对拆除项目乃至爆破项目给出意见、避免扰动地质，在拆除后原先的地质勘查资料可为将来的新建设提供参考。

本次勘察设计的重点是连云港 - 徐州高速客运专线沿线地质灾害的分布与防治，对滑坡、崩塌、地裂缝、地面沉降、岩溶塌陷、采空塌陷、软土震陷、砂土液化、高氟离子土以及地震及地震次生灾害的分布情况、灾害强度进行了调查与统计，并结合线路沿线地质环境条件与建设区域内既有灾害的时空分布规律对线路沿线进行预测评估。通过完成勘察设计文件，也有助于加强笔者对于地质条件的认知，提高笔者在地灾勘察设计方面的能力，同时也接触到前人的重要工作与成果，深化了对所学知识的理解、强化了应用能力与技能。

关键词：勘察设计； 地灾评估； 连徐铁路

Abstract

Starting from data collection and exploration, this paper analyses and evaluates the geological hazards in the working areas and near-field areas along the Lianxu High-speed Passenger Dedicated Line. From the point of view of engineering construction safety, operation and maintenance safety, preliminary comments on geological hazard investigation and design are issued and feasible suggestions are put forward. The main means to accomplish this survey and design task is data collection. Based on previous work and existing literature, this paper summarizes the geological environment conditions along the Lianxu high-speed passenger dedicated line and evaluates the safety of geological hazards that may occur or occur from the actual geological survey data and engineering geological knowledge.

For major construction projects, in order to ensure the safety of relevant personnel and state property in the future operation and maintenance period, it is necessary to establish a complete and good archive of geological environment conditions and complete the prevention and control of geological hazards and countermeasures. In the stage of feasibility study of Engineering construction, geological hazard survey and prevention countermeasures will help to avoid disaster areas, plan construction sites, fully protect the safety and reliability of Engineering construction, and also give suggestions on Soil and water protection. In the stage of Engineering construction, prevention and control of disasters is conducive to speeding up construction progress, improving construction quality, ensuring construction results and ensuring construction. Objectives: In the stage of operation and maintenance of Engineering projects, geological hazard survey is helpful to assess site safety and artificial impact, to check and fill in the leakage of engineering construction foundation, to prevent possible disasters in future operation, and to prepare for rains; at the end of the life cycle of Engineering projects, geological hazard survey will give advice to demolition projects and even blasting projects, to avoid disturbing geology, after demolition. The original geological prospecting data can provide reference for future new construction.

The focus of this survey and design is the distribution and prevention of geological hazards along the Lianyungang-Xuzhou high-speed passenger dedicated line. The distribution and intensity of landslides, collapses, ground fissures, land subsidence, karst collapse, goaf collapse, soft soil seismic subsidence, sand liquefaction, high fluoride ion soil and secondary disasters of

earthquakes and earthquakes along the line are investigated and counted. The environmental conditions and the spatial and temporal distribution of existing disasters in the construction area are used to predict and evaluate the route. Through the completion of the survey and design documents, it is also helpful to strengthen the author's understanding of geological conditions, improve the author's ability in the field of geological disaster survey and design, at the same time, contact with the important work and achievements of predecessors, deepen the understanding of the knowledge learned, and strengthen the application ability and skills.

Key Words: Survey and Design; Geological Disaster Assessment; Lianxu Railway

目录

前 言 4

第一章 评估工作概述 5

1.1 项目工程概况 5

1.2以往工作程度 6

1.3评估工作方法以及完成工作量 7

1.3.1评估工作方法 7

1.3.2评估工作实施原则 7

1.3.3评估灾种与技术手段 8

1.3.4安评工作的目的 8

1.3.5依据国家规范而布置具体的工作任务 8

1.3.6工作依据 9

1.3.7评估工作程序 9

1.4评估级别与范围 9

1.4.1评估等级的确定 9

1.4.2评估范围框定 11

1.4.3工程场地的范围 11

1.4.4评估灾种的确定 12

第二章 地质环境条件 13

2.1区域地质背景 13

2.1.1区域大地构造分区与特征 13

2.2气象水文 14

2.2.1线路区域气象水文资料 16

2.3地形地貌 16

2.3.1线路区域地形地貌 16

2.4地层岩性 17

2.4.1线路区域地层岩性 17

2.5地质构造 18

2.5.1构造运动与区域地质构造 18

2.5.2主要断裂活动特征 19

2.5.3重要断裂活动特征 21

2.6岩土类型及工程地质性质 26

2.6.1岩土类型 26

2.6.2工程地质性质 26

2.7水文地质条件 32

2.7.1含水层分布及赋水性 32

2.7.2地下水类型与动态特征 33

2.7.3地下水开采、补给、径流、排泄条件 35

2.8人类工程活动对地质环境的影响 38

第三章 地质灾害现状评估 39

3.1地质灾害类型特征 39

3.1.1滑坡 39

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