Visual?HELP是美国环保局HELP模型的基础上

，为填埋场的设计、预测淋滤液堆积和评估淋滤液向地下水的渗漏而开发的？捎糜诶盥癯∩杓啤⑸艘涸艘栖鲚颓飨蛟げ狻⑸艘合虻叵滤性艘频目赡苄云拦赖。作为一款基于Windows的软件

，Visual?HELP可用于设计模型并评价仿照了局。

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基于HELP的垃圾填埋场水文设计软件

Visual?HELP将新版本的HELP模型与操作轻便的界面和的画图职能结合起来

，用于构建地下水模型并评价仿照了局。

Visual?HELP选取软件工程领域前沿的技术

，并引入了新步骤

，用于：

• 项目可视化与治理

• 天生输入数据
  
  ，展示仿照了局

• 实现模型间的数据共享

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借助Visual HELP

，用户能够进行以下操作：

• 以图表大局创建填埋场分歧区域的多个剖面图

• 可自动天生各地靠得住的形象数据（或创建地点区域的数据）

• 运行复杂模型仿照
  
  ，以估计在可变气象前提下通过填埋层的体积和流量

• 使用仿照数据的日、月和年图表诠释和分析模型了局

• 使用内置报表天生器自动天生模型了局的报表

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产品概况

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重要职能：

• 易于使用—界面的熟悉设计和职能使其易于进建
  
  ，并且能够使用可用模型进行模型开发

• 新建项目向导—通过逐步向导来领导您实现整个过程
  
  ，创建模型（提供了模型模板以援手您起头做项目）

• 项目治理—基于项主张数据治理系统使用户从处置单独项主张大量文件中解放出来

• 可定造的单元—从预约义的单元模板当选择或为模型参数创建自己的单元模板

• 输入数据—项目树可让您查看和批改模型概括的结构上的概括
  
  ，或复造模型数据文件以执行多个模板以进行活络度分析

• 模型纵断面图—纵断面图以图形方式显示模型纵断面的几何状态
  
  ，尺寸
  
  ，层结构和地层

• 数据库链接—可界说的泥土参数数据库链接到输入大局
  
  ，以自动输入所选值

• WHI Weather Generator—内置的WHI Weather Generator天生长达100年的统计靠得住气象数据
  
  ，用作输入

• —在统一图形建
  ；肪持写唇Ｐ透乓募
  
  ，运行仿照
  
  ，可视化了局并创建汇报文档

• 了局暗示—Visual HELP带有职能的图形组件
  
  ，用于以图形或表格大局可视化仿照了局

• 自动汇报天生器—单击按钮
  
  ，即可创建带有列表化的输入数据
  
  ，配置文件图形和了局显示的富文本文档

• 团队合作—Visual HELP团队合作环境
  
  ，以便能够在网络系统上运行项目文件

• 数据共享—从Visual HELP导出补给数据（入渗率）
  
  ，以用作Visual MODFLOW等鼓和地域地下水模型中的补给天堑前提数据

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重要

• Visual?HELP地下水软件包占有大量仿照工具和设计组件
  
  ，援手您实现可视化

• Visual?Help界面????????

利用Visual?HELP直观的界面结构和画图工具

，您能够地选用HELP模型的根基职能和高档职能。

• 项目创建?

Visual?HELP界面的逻辑结构援手您迅速获得经验曲线

，从而可在几分钟内天生并批改典型剖面图。

• SWS形象天生器??????

作为内置组件

，SWS形象天生器可为您提供各地100年来的靠得住形象统计数据。这一的工具选取的数据库涉及3000多家国际形象站

，并各个地域的汗青形象数据。

• 显示并证明仿照了局????????

Visual?HELP为您提供画图工具

，可援手您正确分析和诠释仿照了局

，并获得质量汇报图表和数据总结。

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Visual?HELP模型了局

使用这个的图形工具可对逐日、每月和每年的流量和体积进行汇报。

模型了局功夫序列数据并用于：

• 地表数据：地表存储、融雪、径流、入渗、蒸发、植被成长和泥土水分贮存

• 地表下的数据：横向层排水、通过层渗流、通过土工膜内衬渗入物和在层的均匀落差

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模型设计

Visual HELP是用的图形用户界面设计的

，用户敦睦的图形工具和的数据处置过程使您可能方便的接见援手模型的根基和高档职能

，：

• 用于查看和批改图层和几何图形的模型纵断面和交互式显示

• 基于gis的交互式气象产生器开发援手模型输入

• 42种填埋资料的内置数据库

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地下水建模

Visual?HELP可能预测季节性对地下水补给率的影响

，使它成为地下水流模型软件的拍档产品

，如Visual?MODFLOW?Premium。

输出流量数据（逐日、每月或者年的体式）到Visual?MODFLOW?Premium中

，注明场地变动的地下水补给率。此刻

，地下水能够用它来提高地下水流量模型的靠得住性和质量了。

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利用领域

• 卫生填埋场的水文设计

• 评估填埋场内渗漏液的渗入率和入渗体积

• 评价填埋场防渗膜/防渗粘土的性

• 确定性的垃圾填埋场的上限
  
  ，思考边坡、植被和气象前提

• 预测用于Visual?MDOFLOW的地下水补给率

• 产生统计学上靠得住的形象数据

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系统要求

• PC Pentium

• 32MB内存

• 25MB可用磁盘空间

• VGA显卡和鼠标

• Windows?2000/XP

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把稳：? Windows XP 32位以上的操作系统不正式Visual HELP软件。

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【英文介绍】

Visual HELP is the most advanced hydrological modeling environment available for designing landfills, predicting leachate mounding and evaluating potential leachate seepage to the groundwater table. Visual HELP combines the latest version of the HELP model (v.3.07) with an easy-to use interface and powerful graphical features for designing the model and evaluating the modeling results. This latest version of the HELP model addresses many of the limitations and bugs from earlier versions, and also includes several new analysis features.

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Visual HELP uses the latest technologies in software engineering to introduce many new methods for visualizing and managing your projects, generating input data, presenting modeling results, and sharing data between models.?The result is a powerful and easy-to-use modeling tool that makes hydrologic landfill modeling more practical and accessible than ever before!

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This completely-integrated modeling environment allows the user to:

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Graphically create several profiles representing different parts of a landfill

Automatically generate statistically reliable weather data for virtually any location in the world (or create your own)

Run complex model simulations

Visualize full-color, high-resolution results

Prepare a summary document (tables and graphs) for your report

For professional applications in landfill design, Visual HELP is the only software package you will ever need!

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Visual HELP applications

Landfill design and optimization:

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Simulate multiple landfill profiles to find the most suitable design

Evaluate leachate mounding or leakage problems with current landfills

Determine the effectiveness of landfill caps for reducing leachate mounding

Design and optimize leachate collection systems

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Groundwater recharge estimation:

Visual HELP has also proven to be an extremely valuable tool for accurately predicting seasonal groundwater recharge for periods of up to 100 years for use in MODFLOW models.? This seasonal recharge data has proven to significantly influence the vertical migration of contaminants through the unsaturated zone.

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About the HELP model

The HELP model is a quasi-two-dimensional, deterministic, water-routing model for determining water balances.?The following is a description of the HELP model as derived from the HELP program reference manual:

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The HELP program was developed by the U.S. Army Engineer Waterways Experiment Station (WES), Vicksburg, MS for the U.S. Environmental Protection Agency (EPA), Risk Reduction Engineering Laboratory, Cincinnati, OH, in response to needs in the Resource Conservation and Recovery Act (RCRA) and the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA, better known as Superfund) as identified by the EPA Office of Solid Waste, Washington, D.C.?The primary purpose of the model is to assist in the comparison of landfill design alternatives as judged by their water balances.

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The Hydrologic Evaluation of Landfill Performance (HELP) model was developed to help hazardous waste landfill designers and regulators evaluate the hydrologic performance of proposed landfill designs.? The model accepts weather, soil and design data and uses solution techniques that account for the effects of surface storage, snowmelt, runoff, infiltration, evapotranspiration, vegetative growth, soil moisture storage, lateral subsurface drainage, leachate recirculation, unsaturated vertical drainage, and leakage through soil, geomembrane or composite liners.?Landfill system including various combinations of vegetation, cover soils, waste cells, lateral drain layers, low permeability barrier soils, and synthetic geomembrane liners may be modelled.? Results are expressed as daily, monthly, annual and long-term average water budgets.

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The original version of the HELP model was first developed at WES in 1984 (Schroeder et al., 1984a and 1984b).?Since then there have been many advances in the technology and scope of the model and many of the defects in the code have been corrected.?The latest version of the HELP model is version 3.07 which contains many significant improvements and enhancements over the previous versions.?The following is a brief outline of the enhancements that have been made since Version 2 of the HELP model (Schroeder et al., 1988a and 1988b).

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The number of layers that can be modeled has been increased

The default soil material texture list has been expanded to contain additional waste materials, geomembranes, geosynthetic drainage nets and compacted soils

The model now permits the use of customized soil textures

Computations of leachate recirculation and groundwater drainage into the landfill have been added

Leakage through the geomembranes due to manufacturing defects (pinholes) and installation mishaps (tears and punctures) is accounted for.

Estimation of surface runoff has been improved to account for large landfill surface slopes and slope lengths

The snow-melt model has been replaced with an energy-based model

The Priestly-Taylor potential evapotranspiration model has been replaced with a Penman method that incorporates wind and humidity effects as well as long-wave radiation heat losses

A frozen soil model has been added to improve infiltration and evapotranspiration predictions in cold regions

The unsaturated vertical drainage model has also been improved to aid in storage computations

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