宾夕法尼亚州废弃矿区紧急项目

Eric E. Cavazza, J. Stefanko, Richard L. Beam
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引用次数: 0

摘要

摘要宾夕法尼亚州环境保护局废弃矿山复垦局(BAMR)实施了一项废弃矿山土地(AML)紧急计划,以解决整个宾夕法尼亚州煤田突然发生的高优先级废弃矿山土地(AML)问题。BAMR设有两个外地办事处:一个在宾夕法尼亚州东部的威尔克斯-巴雷(无烟煤地区),一个在宾夕法尼亚州西部的埃本斯堡(沥青地区)。两个外地办事处都有内部施工人员,配备重要的设备,以应对和解决许多小型AML紧急情况(危害),如坑洞(或洞穴)、下沉和矿井排水爆裂。对于较大的“反洗钱”紧急情况,如对房屋、企业和道路造成结构性破坏的沉降事件;矿井火灾;煤矸石燃烧;山体滑坡;或其他大规模或复杂的“反洗钱”问题,项目由外部承包商完成。项目设计由BAMR工程人员完成。然后通过招标或建议书的方式聘用承包商,在发标和开标之间的时间跨度非常短。自2010年10月以来,BAMR已处理了近800个“反洗钱”紧急情况,相当于每个日历年处理约80个“反洗钱”紧急项目。处理这些紧急情况的平均建筑费用每年刚刚超过325万美元。由于过去几年英联邦降水增加,这一数字在过去五(5)年(2015-2019年)平均增加到86个“反洗钱”紧急项目,在2018日历年达到创纪录的127个。在这五年期间,处理这些“反洗钱”紧急项目的平均费用为每年466万美元。本文将提供宾夕法尼亚州反洗钱紧急计划的一些背景,一些汇总统计数据,包括年度数量和已完成项目的类型,包括成本,并通过照片和视频链接强调该计划最近完成的一些典型项目。
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PENNSYLVANIA’S ABANDONED MINE LAND (AML) EMERGENCY PROGRAM
Abstract. The Pennsylvania Department of Environmental Protection’s Bureau of Abandoned Mine Reclamation (BAMR) implements an Abandoned Mine Land (AML) Emergency Program to address high-priority, abandoned mine land (AML) problems that suddenly occur throughout Pennsylvania’s coal fields. BAMR maintains two field offices: one in eastern Pennsylvania (Anthracite Region) in Wilkes-Barre and one in western Pennsylvania (Bituminous Region) in Ebensburg. Both field offices maintain in-house construction crews with significant equipment available to respond to and address many small AML Emergencies (hazards) such as pothole (or cavehole), subsidences, and mine drainage breakouts. For larger AML Emergencies such as subsidence events causing structural damage to homes, businesses, and roads; mine fires; coal refuse fires; landslides; or other large-scale or complex AML problems, projects are completed by outside contractors. Project designs are completed by BAMR engineering staff. The contractors are then hired through solicitation of bids or proposals with very short timeframes between bid issue and bid opening. Since October of 2010, BAMR has addressed nearly 800 AML Emergencies which equates to approximately 80 AML Emergency projects each calendar year. The average construction cost to address those emergencies was just over $3.25 million per year. Due to the increased precipitation over the Commonwealth the last several years, that number has increased to an average of 86 AML Emergency projects over the last five (5) years (2015–2019) with a record number of 127 addressed in calendar year 2018. The average cost to address those AML Emergency projects over that five-year period was $4.66 million per year. This paper will provide some background on Pennsylvania’s AML Emergency Program, some summary statistics including the annual number and types of projects completed including costs, and also highlight through both photos and video links some typical projects recently completed by the program.
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