• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Cleaner Production >An optimization model of sand and gravel mining quantity considering healthy ecosystem in Yangtze River, China
【24h】

An optimization model of sand and gravel mining quantity considering healthy ecosystem in Yangtze River, China

机译：考虑长江流域健康生态系统的砂石开采量优化模型

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

River sand and gravel are industrial construction materials that are an essential part of rivers. Therefore, an important issue is to determine how to produce the maximum economic benefit of river sand and gravel resources under the premise of ensuring river stability and health, as well as flood control security. This study analyzed the limited quantities of sand and gravel mining during the mining planning period, including the total quantity of sand and gravel mining, the minimum annual quantity of sand and gravel mining, the maximum annual quantity of sand and gravel mining, as well as the maximum quantity of sand and gravel mining quantity in two consecutive years. Taking the above restrictions as constraints, this paper constructed optimization models of annual and multi-year exploitation of river sand and gravel resources with economic benefit as the objective function. Through exploring the regulating capability of sand market, we put forward that the sand and gravel supply price should be regulated by controlling sand and gravel supply quantity appropriately under sand and gravel mining permission system, and discussed the characteristics of different quantity-price relationships of river sand and gravel. On the basis of discussing the relationship between quantity and price, cost and price, we analyzed the optimization models for annual and multi-year exploitation of river sand and gravel resources. Lastly, we take the sand and gravel mining in a section of the Yangtze River as a calculation example to validate the optimization models' rationality and feasibility. This study can serve as a reference for sand and gravel mining planners, and provide support for the optimal utilization of river sand and gravel resources in the future. (c) 2019 Elsevier Ltd. All rights reserved.
机译：河沙和砾石是工业建筑材料，是河流的重要组成部分。因此，重要的问题是在确保河流稳定与健康以及防洪安全的前提下，确定如何最大程度地发挥河沙资源的经济效益。本研究分析了采矿计划期内砂砾石开采的有限数量，包括砂砾石开采的总量，砂砾石开采的最小年产量，砂砾石开采的最大年产量以及连续两年最大的砂石开采量。在此基础上，建立了以经济效益为目标函数的江河砂石资源年，多年开采优化模型。通过探索砂市场的调节​​能力，提出在砂石开采许可制度下，通过适当控制砂石供应量来调节砂石供应价格，探讨了河水量价关系的特点。沙子和碎石。在讨论数量和价格，成本和价格之间的关系的基础上，我们分析了河​​砂和砾石资源的年度和多年开采的优化模型。最后，以长江断面的砂石开采为例，验证了优化模型的合理性和可行性。该研究可为砂石开采计划者提供参考，为今后河道砂石资源的优化利用提供支持。 （c）2019爱思唯尔有限公司。保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：[email protected]

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号

OSZAR »