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首页> 外文会议>SWANA's 42nd annual solid waste exposition (WasteCon 2004) >COST/BENEFIT ANALYSIS FOR THE DESIGN AND CONSTRUCTION OF THE MODULE4 EXPANSION CELL AT THE MONTEREY PENINSULA LANDFILL, MARINA,CALIFORNIA
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COST/BENEFIT ANALYSIS FOR THE DESIGN AND CONSTRUCTION OF THE MODULE4 EXPANSION CELL AT THE MONTEREY PENINSULA LANDFILL, MARINA,CALIFORNIA

机译：蒙特雷半岛兰迪菲尔市加利福尼亚州玛丽娜市的MODULE4膨胀电池设计和建造的成本/收益分析

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摘要

The Monterey Regional Waste Management Districtrn(District) solicited proposals from qualified consultingrnfirms to conduct the design of their proposed Module 4rnexpansion at the Monterey Peninsula Landfill located inrnMarina, California. Following award, the selectedrnconsultant prepared design documents, constructionrndrawings, and technical specifications for the Module 4rnexpansion. As part of the project, several designrninnovations were developed which resulted in significantrncost savings to the District.rnThe modifications to the existing design of previous cellsrnthat were conducted for the Module 4 expansionrnincluded the following:rn1. Increasing the internal cut slopes of the excavationrnfrom 3 horizontal to 1 vertical (3:1) to a slope of 2:1rnand utilizing a geosynthetic clay liner in place of arncompacted clay liner.rn2. Increasing the final refuse slopes of the landfill fromrn4:1 to 3:1, which expanded the waste capacity.rn3. Revising the base-grading plan for the module andrnleachate collection and removal system layout,rnwhich maintained airspace while utilizing thernbenefits of the in situ clay layer below the cell.rn4. In-place processing of in situ clays within the basernof the Module as the first lift of clay liner.rn5. Preparing a groundwater removal system to allowrnconstruction and operation of the module below arnperched groundwater zone.rnThe above design modifications resulted in a finalrnsystem that had significantly more capacity and site life.rnAt the same time, the modifications resulted inrnsignificant savings to the District over previous designs.rnThe following paper presents the engineering rationalernbehind the proposed modifications to the Module 4rndesign along with the resulting cost benefits.
机译：蒙特利地区废物管理区（区）征求了合格咨询公司的建议，以在加利福尼亚州马里纳的蒙特利半岛垃圾填埋场进行其提议的第4单元扩展设计。获得奖项后，选定的顾问将为第4单元扩展准备设计文件，施工图纸和技术规格。作为该项目的一部分，开发了几项设计创新，从而为学区节省了大量成本。为模块4扩展对以前的单元的现有设计进行的修改包括：rn1。使用土工合成粘土衬里代替无纺布压实的粘土衬里，将开挖的内部切割坡度从3水平增加到1垂直（3：1），增加到2：1的坡度。将垃圾填埋场的最终垃圾坡度从rn4：1增加到3：1，从而扩大了垃圾处理量。修订了模块的基础分级计划和渗滤液收集和清除系统的布局，从而在利用单元下方原位粘土层的益处的同时保持了空气空间。在模块底部的原位黏土的现场处理作为黏土衬里的第一个提升。rn5。准备地下水去除系统以允许在裸露的地下水带以下建造和运行模块。rn上述设计修改导致最终的系统具有更大的容量和现场使用寿命。rn同时，这些修改导致该地区比以前的设计节省了可观的成本.rn下面的论文介绍了对模块4rndesign的拟议修改背后的工程原理，以及由此带来的成本收益。

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