The advancement of science and technology and the rapid development of the global economy have greatly improved the quality of life in human society, but also brought a series of problems that threaten human survival, such as water pollution, lack of water and environmental damage, which has aroused widespread concern in the fields of environment, ecology and sustainable development in the world. Protecting the global environment and implementing sustainable development have become the consensus of human society. As the most populous developing country, solving environmental problems is not only in line with China’s own long-term goals for sustainable development, but also an important manifestation of the common interests of human society.
     The research content of this article includes the concept of water resources and its comprehensive development and utilization, the understanding, causes and prevention of flood disasters, measures for irrigation water and water intake methods, calculation of water consumption for urban water supply and knowledge of water sources, understanding of environmental concepts and classifications, main problems of the environment, content and tasks of environmental science, the relationship between environmental pollution and human health and the impact on human health, domestic and foreign measures and development history of environmental protection. Through the content of the article, readers can realize the importance and scarcity of water resources, the seriousness of environmental pollution and the harm caused by it, so as to let everyone increase the importance of nature, better protect the environment, and promote the harmony between people and the environment.

前 言

科学技术的进步和全球经济的迅猛发展，在极大地改善了人类社会生活质量的同时，也带来了水资源污染、缺失和环境破坏等一系列威胁人类生存的问题，从而引起了世界各国对环境、生态、可持续发展等领域的广泛关注。保护全球环境，实施可持续发展，已成为人类社会的共识。作为人口最多的发展中国家，解决好环境问题， 既符合中国自身可持续发展的长远目标， 也是人类社会共同利益的重要体现。
      本文研究内容包括水资源的概念以及综合开发利用；对于洪涝灾害的认识、成因以及预防；灌溉用水的措施以及水源取水方式；城镇供水的用水量计算和水源知识；对于环境概念以及分类的了解；环境主要存在的问题；环境科学的内容和任务；环境污染与人体健康的关系以及对人体的影响危害；国内外对于环境保护的措施和发展历程。通过文章内容让大家认识到水资源的重要性和稀缺性，环境污染的严重和带来的危害，让大家提高对自然的重视程度，更好的保护环境，促进人与环境和谐相处。

Human beings have entered the 21st century, and the process of economic globalization has been obviously accelerated. With China’s accession to WTO, China’s economy is gradually joining the tide of the world economy. With the rapid development of the world economy, the world is facing increasingly serious environmental problems. It is a very important task to maintain the harmony between human and nature and realize sustainable development. Among several fuels, natural gas is clean energy. Compared with coal and oil, natural gas not only emits the least amount of Sox, NOx and CO, but also emits the lowest amount of CO2 when obtaining the same amount of energy. Natural gas used as industrial, civil and vehicle fuel will significantly improve the air quality of cities. Increasing the proportion of natural gas in the energy consumption structure is an important measure to alleviate environmental degradation. Accelerating the development and utilization of natural gas has been widely recognized in the world. 

     As the main channel of natural gas transportation, pipeline is known as one of the five modes of transportation. Natural gas pipeline is widely used in urban development, energy supply, petrochemical infrastructure and people’s living conditions and other fields. In view of the strategic position of natural gas pipeline in the national economy, it is known as the “major lifeline of the country”. However, with the development of pipeline and the increase of transportation time, accidents such as pipeline leakage, perforation and explosion caused by initial defects of pipeline, corrosion and perforation during operation, third-party damage, misoperation, natural disasters and other factors occur from time to time, which cause great harm to people’s lives and properties, surrounding environment, social economy, enterprise production and people’s life. Therefore, it is of great significance to strengthen the integrity management of natural gas pipeline, improve the basic technology of inspection and detection, improve the means of safety assessment, and actively formulate and take measures to prevent accidents. In particular, the number of pipelines has increased dramatically. National key projects, such as the Second Project of Natural Gas Transmission from West to East China and Natural Gas Transmission from Sichuan to East China, have been completed and put into operation, driving the rapid development of downstream branch lines and buried natural gas pipelines in cities along the line. When it brings threat to urban safety, it will inevitably bring new challenges to the safety assessment and management of pipelines.

前 言

人类已进入 21 世纪，经济全球化的进程明显加快，随着中国加入 WTO，中国经济正在逐步加入世界经济的大潮之中。在世界经济迅猛发展的同时，全球面临着日益严重的环境问题，保持人和自然的和谐，实现可持续发展成为一项十分重要的任务。在几种燃料中，天然气是清洁能源，与煤、石油相比，天然气使用时不仅排放出的 SOx、 NOx 及 CO 量最少，而且获得等量能量时排放的 CO2 量也是最低的。天然气用作工业、民用及车用燃料将显著改善城市的大气质量，增加天然气在能源消费结构中的比例是缓解环境恶化的重要措施，加速开发和利用天然气在世界各国得到广泛的共识。
      管道作为目前天然气输送的主要渠道，被誉为五种运输方式之一。天然气管道广泛应用于城市发展、能源供应、石油化工的基础设施和人们生活的基础条件等领域。鉴于天然气管道在国民经济中占有极其重要的战略地位，被誉为“国家重大生命线”。但随着管道发展及运输时间的增长，由管道初始缺陷以及运行期间腐蚀穿孔、第三方破坏、误操作、自然灾害等因素造成的管道泄漏、穿孔、爆炸等事故时有发生，对人民生命财产、周边环境造成极大危害，给社会经济、企业生产和人们生活带来重大损失。因此，加强天然气管道的完整性管理、提高基础的检验、检测技术、完善安全评估手段，积极拟定并采取措施进行事故预防意义重大。尤其是，管道数量激增，如西气东输二线、川气东送管道工程等国家重点工程已建成投产，带动下游支线和沿线城市埋地天然气管道迅猛发展，对城市安全带来威胁的同时，必然对管道的安全评估和管理提出新的挑战。

Railway is the integration of high and new technology and the symbol of human civilization and railway modernization. Since the 16th National People’s Congress (NPC) of the People’s Republic of China, with the attention of the Party and the State Council and the approval of “The Medium and Long Term Railway Network Plan” by the State Council in January 2004 as the symbol, China has set off a new round of large-scale and high standard railway construction climax. The scale of high-speed railway construction is unprecedented not only in China, but also in the world. During the 13th Five Year Plan period, China plans to start construction of 10000 km of high-speed railway, builds and puts into operation 11000 km, and increases the business mileage of high-speed railway to 30000 km. The great achievements in the development of high-speed railway in China play a decisive role in accelerating the realization of railway modernization, and make the position and role of railway in the “four comprehensive” strategic layout increasingly prominent. The arrival of “high-speed rail era” has brought many profound changes to the economy, society and people’s life, “high-speed rail economy” and “high-speed rail travel” are leading the trend of the times. In just 10 years, China has successfully changed from the world’s high-speed railway chaser to the leader, which has greatly improved the national image and national self-confidence, and made the high-speed railway a bright“national card”.
        Project quality is the life of high-speed railway construction, and project quality management is the core of high-speed railway construction project management. In recent years, the most concern at home and abroad is how to firmly adhere to the quality policy of “innovation leading, bravely striving for the first class” under the situation of tight time, heavy task and high tension of construction resources, effectively ensure the construction quality of large-scale, high-standard high-speed railway, and successfully achieve the grand goal of “building the world-class high-speed railway”. Up to now, we can basically answer this major issue, that is, we have successfully walked out of a road to ensure the quality of high-speed railway construction projects by relying on the standardized management of construction projects, and one of the most important innovative achievements is to create and promote a high-speed railway construction project quality management system characterized by integration and standardization.

前 言

铁路是当今高新技术的集成， 是人类文明和铁路现代化的标志。 党的十六大以来，在党中央国务院的重视下，以 2004 年 1 月国务院批准《中长期铁路网规划》为标志，我国掀起了新一轮大规模、高标准铁路建设高潮， 高速铁路建设规模之大，不但在我国前所未有，而且在世界上亦无先例。“十三五”时期我国计划开工建设高速铁路 1万千米，建成投产 1.1 万千米，高速铁路营业里程增长到 3 万千米。我国高速铁路发展的巨大成就，对于加快实现铁路现代化起着决定性作用，使得铁路在“四个全面”战略布局中的地位和作用日益突显。 “高铁时代”的到来给经济社会和人民生活带来很多深刻的变化，“高铁经济”和“高铁出行”正在引领时代风潮，仅仅用了 10 年时间，我国成功地从世界高速铁路的追赶者转变为引领者，这一历史性跨越大大地提升了国家形象和民族自信，也让高速铁路成为亮丽的“国家名片”。
       工程质量是高速铁路建设的生命，工程质量管理是高速铁路建设项目管理的核心。这些年来，国内外最为关注的就是我国铁路建设者如何在时间紧、任务重、建设资源高度紧张的形势下，牢固坚持“创新引领、勇争一流”的质量方针，有效确保大规模、高标准高速铁路建设工程质量，成功实现“建设世界一流高速铁路”的宏伟目标。时至今日，我们基本上可以对这一重大课题作出回答，那就是我们成功地走出了一条依靠开展建设项目标准化管理来保证高速铁路建设工程质量的道路，其中最重要的创新成果之一就是创建和推行以一体化、标准化为突出特征的高速铁路建设项目工程质量管理体系。

China is a developing country with more people and less land. According to the assessment, the reasonable number of China’s cultivated land bearing population is 800 million, and the maximum theoretical bearing capacity is only 1.5 billion. By the end of 1998, China’s population had reached 1.248 trillion, and it would reach 1.5 billion in 2020. The highest peak would reach 1.6 billion. Land remediation is the consolidation of unreasonably used land, the restoration of disaster-damaged agricultural land, the abandoned land of industrial and mining enterprises and temporary transportation land, and the development of reserve land resources, which is aimed at improving the utilization rate of the land and ensuring the sustainable use of land resources. At present, the situation of cultivated land protection in China is becoming increasingly prominent. The state has accordingly proposed to strictly adhere to the red line of 1.8 billion mu of cultivated land, raising the status of cultivated land protection to the height of national strategic security. In addition, the state has also continuously put forward major measures for the construction of a new socialist countryside and the coordinated development of urban and rural areas. Objectively speaking, the status of land remediation is also continuously improved. Therefore, recent land remediation activities not only require land expansion and grain increase, but also meet the new requirements of opportunities and challenges faced by land remediation. High-standard basic farmland construction, construction land remediation, land development and reclamation, and urban and rural construction land increase and decrease should be included in the scope of land remediation activities. Therefore, the content of land remediation will continue to expand, and the scope, field, and coverage will also increase, which will put forward higher requirements for the implementation and management of land remediation planning. At the same time, the improvement of the importance of land remediation planning will also bring very favorable conditions for the implementation and management of land remediation planning. This book systematically introduces land remediation and urban-rural planning to provide theoretical guidance materials for future work.

前 言

我国是一个人多地少的发展中国家。据评估，我国耕地承载人口的合理数量为8 亿，最大理论承载量也只有 15 亿，而 1998 年末我国人口已达 12.481 亿， 2020 年将达到 15 亿，最高峰将达到 16 亿。土地整治是以提高土地利用率、保障土地资源可持续利用为目的，对未合理利用土地的整理，对灾毁农地、工矿企业废弃地和临时交通用地的修复，以及开发后备土地资源等活动。目前，我国的耕地保护形势日趋突出， 国家相应提出了要严格坚守 18 亿亩耕地红线， 把耕地保护的地位提升到了国家战略安全的高度。另外，国家也不断提出社会主义新农村建设和城乡统筹发展的重大举措，从客观上来说，土地整治的地位也在不断提升。所以近期的土地整治活动不仅要求扩地增粮，还要满足土地整治面临的机遇与挑战的新要求，要把高标准基本农田建设、建设用地整治、土地开发复垦、城乡建设用地增减挂钩等内容纳入到土地整治活动的范围。因此，土地整治活动的内容将会不断扩充，涉及的范围、领域、覆盖面也会不断增大，这对土地整治规划实施管理将会提出更高的要求。同时， 土地整治规划重要性的提升也会为土地整治规划实施管理带来十分有利的条件。本书系统介绍了土地整治与城乡规划，为今后的工作提供理论指导材料。

Civil engineering is a general term of science and technology for the construction of various engineering facilities. It refers to the applied materials, equipment and technical activities such as survey, design, construction, maintenance and repair, as well as the objects of engineering construction, that is, various engineering facilities that built on the ground or underground, on land or in water, directly or indirectly for human life , production, military, scientific research services, such as houses, roads, railways, transportation pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, offshore platforms, water supply and drainage, and protection projects. Reasonable design is not only related to the level of construction, but also inseparable from the development of the country’s basic industries and the safety of people’s lives and property. At the same time, in actual civil engineering construction, superb design can often optimize the construction steps and even shorten the construction period. Based on the analysis of the characteristics of civil engineering construction technology, this book explains the operation of traditional civil engineering construction technology, points out the key points of the application of new technologies in civil engineering construction, makes a technical analysis and summary of civil engineering construction technology, and makes a prospects on the development of civil engineering construction technology.
       Civil engineering construction technology is constantly exploring, innovating and developing; it has been used in engineering construction and achieved good economic and social benefits. We must always maintain the vitality of innovation, develop and apply new technologies, and continuously improve the construction technology of civil engineering.

前 言

土木工程是建造各类工程设施的科学技术的统称。它既指所应用的材料、设备和所进行的勘测、设计、施工、保养维修等技术活动，也指工程建设的对象，即建造在地上或地下、陆上或水中，直接或间接为人类生活、生产、军事、科研服务的各种工程设施，例如房屋、道路、铁路、运输管道、隧道、桥梁、运河、堤坝、港口、电站、飞机场、海洋平台、给水和排水以及防护工程等。合理的设计，不但关系到建筑的水平，还与国家基础事业的发展和人民生命财产安全密不可分。同时，在实际的土木工程施工中，高超的设计常常可以优化施工步骤乃至缩短工期。本书在分析土木工程施工技术的特点基础上，对传统土木工程施工技术的运行进行了阐述，指出了土木工程施工新型技术运用的要点，对土木工程施工技术进行了技术上
的分析和总结，做出了土木工程施工技术发展上的展望。
      土木工程施工技术在不断的实践探索中也在不断地创新发展，并在工程建设中得到了运用，取得了良好的经济社会效益。我们要始终保持创新活力，开发和应用新技术，不断提高土木工程施工技术。