longwall

简明释义

英[ˈlɒŋˌwɔːl]美[ˈlɔːŋwɔːl]

adj. 长壁开采法的

英英释义

单词用法

同义词

反义词

例句

1.The paper introduces the background, the technical difficult, the general design and the operation of technical transformation in Xiagou coal mine with longwall top-coal caving mining.

介绍了下沟煤矿综放技改合作项目的缘由、技术难点与总体技术设计以及项目运作与体会。

2.This model provides a unified idea and method for study of pressure in longwall mining and strata movement.

组合岩梁模型的建立，为采场矿压和岩层移动的研究提供了一种新的思想和方法。

3.This paper presents the development, design and performances of a specialized wrench for retrieving bolts which are used to support the longwall headings.

介绍一种用于回收井下巷道支护锚杆的专用扳手的开发，设计和在井下现场的使用效果。

4.A major requirement of any longwall mine layout is that it provides the best possible financial performance, given the existing circumstances and limitations.

所有长壁矿井布置的主要要求是在现有环境和限制下提供最佳的可能财务业绩。

5.By field observation and simulating test of shallow seam longwall mining, the phenomenon of main roof asymmetry breaking is discovered during the first weighting.

依据典型浅埋煤层工作面的实测和模拟，发现了采场老顶初次破断的非对称现象。

6.The paper introduced the size, equipment, gateway arrangement and production of the fully mechanized longwall coal mining faces at home and abroad.

介绍了国内外长壁综采工作面的尺寸、设备、回采巷道布置及工作面单产的现状及发展趋势。

7.The roof slice longwall method increases the work of laying false roof for next slice.

长壁采煤法的采煤工艺具有多重特点：顶分层采煤增加了要为下分层填设假顶的工作。

8.The miners worked diligently in the longwall 长壁 mining section to extract coal efficiently.

矿工们在长壁 长壁采煤区努力工作，以高效地提取煤炭。

9.Safety measures are crucial when operating a longwall 长壁 mining operation.

在进行长壁 长壁采矿作业时，安全措施至关重要。

10.The longwall 长壁 equipment requires regular maintenance to ensure optimal performance.

为了确保最佳性能，长壁 长壁设备需要定期维护。

11.Using a longwall 长壁 system, the company increased its coal production significantly.

通过使用长壁 长壁系统，公司显著提高了煤炭产量。

12.The longwall 长壁 method is known for its high recovery rates in coal mining.

在煤炭开采中，长壁 长壁方法以其高回收率而闻名。

作文

The mining industry has always been at the forefront of technological advancement, and one of the most significant innovations in this field is the method known as longwall. This technique has revolutionized the way coal is extracted from underground mines, making the process more efficient and safer for workers. The longwall method involves the use of a long wall of coal that is mined in a single slice, which allows for a continuous operation unlike traditional mining techniques. This method not only maximizes the amount of coal that can be extracted but also minimizes the environmental impact by reducing surface disturbances.Historically, coal mining was a labor-intensive process, often involving dangerous conditions for miners. However, with the introduction of the longwall technique, many of these risks have been mitigated. In a longwall operation, large machines called shearers are used to cut the coal from the face of the mine. These machines can operate on steep gradients and are equipped with advanced technology that enhances their efficiency and safety. Moreover, the longwall method allows for better ventilation within the mine, which is crucial for maintaining air quality and ensuring the safety of the miners.One of the key advantages of the longwall mining method is its ability to extract a higher percentage of the coal seam compared to other methods. Traditional mining techniques often leave behind significant amounts of coal, which can be economically unfeasible to recover later. In contrast, the longwall method can recover up to 90% of the coal in a given area, making it a highly efficient choice for mining companies. This efficiency not only benefits the companies financially but also contributes to meeting the increasing global demand for energy resources.However, the longwall method is not without its challenges. The operation requires substantial initial investment in machinery and infrastructure, which can be a barrier for smaller mining companies. Additionally, because the longwall technique involves large-scale operations, it can lead to significant subsidence, or sinking of the ground above the mine, which can affect nearby structures and ecosystems. Therefore, careful planning and environmental assessments are essential before implementing a longwall mining operation.In conclusion, the longwall mining method represents a significant advancement in coal extraction technology. By allowing for more efficient recovery of coal while improving safety conditions for miners, it has become a preferred choice in the industry. Despite its challenges, the benefits of longwall mining make it a vital part of the future of energy production. As the world continues to seek sustainable and efficient energy sources, the longwall method will likely play an important role in shaping the future of mining and energy industries. Understanding the intricacies of the longwall technique is crucial for anyone interested in the field of mining, as it highlights the balance between technological advancement and environmental stewardship.

采矿行业一直处于技术进步的前沿，其中最重要的创新之一就是被称为长壁的方法。这种技术彻底改变了煤炭从地下矿山提取的方式，使过程更高效，工人更安全。长壁方法涉及在一条长壁煤层上进行单次切割，这使得操作连续，与传统的采矿技术不同。这种方法不仅最大限度地提高了可提取煤炭的数量，而且通过减少表面干扰来最小化环境影响。在历史上，煤矿开采是一个劳动密集型的过程，往往给矿工带来危险的条件。然而，随着长壁技术的引入，许多风险得到了缓解。在长壁操作中，使用大型机器称为切割机从矿面的煤炭中切割煤。这些机器可以在陡坡上运行，并配备先进的技术，提高了其效率和安全性。此外，长壁方法允许更好的通风，这对保持矿井内的空气质量和确保矿工的安全至关重要。长壁采矿方法的一个关键优势是能够比其他方法提取更高比例的煤层。传统的采矿技术往往会留下大量煤炭，后期回收经济上不可行。相比之下，长壁方法可以在特定区域回收高达90%的煤炭，使其成为采矿公司的高效选择。这种效率不仅为公司带来了经济利益，还促进了满足全球日益增长的能源资源需求。然而，长壁方法并非没有挑战。该操作需要在机械和基础设施方面进行大量初始投资，这可能成为小型采矿公司的障碍。此外，由于长壁技术涉及大规模操作，可能导致显著的沉降，即矿上方地面的下沉，这可能影响附近的建筑物和生态系统。因此，在实施长壁采矿操作之前，仔细的规划和环境评估是必不可少的。总之，长壁采矿方法代表了煤炭提取技术的重要进步。通过实现更高效的煤炭回收，同时改善矿工的安全条件，它已成为行业的首选。尽管面临挑战，长壁采矿的好处使其成为未来能源生产的关键部分。随着世界继续寻求可持续和高效的能源来源，长壁方法可能在塑造采矿和能源行业的未来中发挥重要作用。理解长壁技术的复杂性对任何对采矿领域感兴趣的人来说都是至关重要的，因为它突出了技术进步与环境管理之间的平衡。