| 摘要: | 在都市化及人口集中之處，其建物興建、都市更新或公共工程的開闢，而產生之營建混合物及剩餘土石方問題也愈來愈多。幾年來所造成台灣地區之生態環境、都市景觀的破壞及公共安全之危害也愈來愈嚴重。先進國家均趨向於將營建副產物及營建剩餘土石方分類回收、減量及資源再利用，所以處理其問題自是刻不容緩。 無論是公民營業者，再開發或興辦營建剩餘土石方資源再利用場時，其所面臨的第一個問題就是基地的選址，開發場地一但決定就很難再做變更，尤其先期購地成本所佔開發資金比例太大，所以事前評估分析工作就更顯重要。建立一套完善的土資場選址評估準則，主要從： 法令規範之限制：(1)重要集水區、河川行水區、河川整治區範圍。(2)自來水水源保護區一定範圍內。(3)軍事禁限建及管制項目。(4)150m範圍內重要設施之限制。 自然環境因素分析：(1)工程地質(2)地形地勢(3)集水分區(4)生態調查。 區位因素評估分析：(1)社會經濟(2)交通運輸條件。 經濟效益分析：(1)成本分析(2)最大累積現金流量分析(2)益本比分析。 等四方面擬定。在資訊發達、網路便捷之條件下以一組有經驗的專業工程人員做初步的現場踏堪及網路資料擷取，再依上述之評估準則操作，已足以將土資場申請設場之風險降至最低。 已申請設置中之秀麗土資場，其投資初期所作之評估分析及調查前置作業為例，做為實際模擬未來在設置土資場時之調查項目及分析結果，給予決策者之參考依據，才能降低風險。另在土資場中成立一實驗室，在實驗室中經過篩分析試驗、液性塑性試驗、比重試驗，即可將營建署之土壤分類標準（B1?B8）轉換成統一土壤分類之標準，以有效分類土石方，而充分有效的再利用營建之剩餘土石方。 Among the urbanized and populated areas, there are more and more problems of construction compounds and remaining soil & stone out of buildings construction, cities renewal or exploitation of public works. For recent years, it becomes more and more serious to the destruction of ecologic environment and city landscape and damage to public safety. Advanced nations are all inclined to recycle, reduce and re-use the sources of secondary products of construction and remaining soil & stone out of constructions. Consequently, we cannot wait to deal with these problems. No matter government-owned or private agencies, when they develop or build a resource re-use field for remaining soil & stone out of constructions, the first problem they should confront is the selection of base. It will be very difficult once the field is determined. In particular, the land purchase cost at the preliminary period is very high in ratio of development capital. As a result, the advanced evaluation analysis becomes a very significant work. As for the evaluation guidelines of establishing a complete set of construction remaining soil & stone resource re-use field selection, we see from the following points of view: 1. Limits on legal regulation: (1) important water-collecting area, river flowing area, river re-building area, (2) water source preservation area for running water, within specific range, (3) military construction-prohibiting and control items and (4) limits of important facilities within 150M range 2. Analysis on natural environment factors: (1) works land condition, (2) topography terrains, (3) water-collecting area classification, and (4) ecology investigation 3. Analysis on level factors evaluation: (1) social economics and (2) traffic transportation conditions 4. Analysis on economic effectiveness: (1) cost analysis, (2) maximum accumulated cash flow analysis and (3) benefit-cost ratio analysis We plan from these four aspects. Under the conditions of information booming and network convenience, we dispatch one group of professional engineers to do initial site survey and network data retrieving, and then we operate according to the aforesaid evaluation in order to minimize the risk of applying a construction remaining soil & stone resource re-use field. In regard to the Hsiu-Li Construction Remaining Soil & Stone Resource Re-Use Field ready for application, we use the evaluation analysis of the initial investment period and investigation preparation as an example to be the investigation items and analysis outcome as simulating to establish a realistic construction remaining soil & stone resource re-use field, and we offer these reference data to decision-makers in order to reduce risk. In addition, we establish a lab in construction remaining soil & stone resource re-use filed. In the lab, we do sieving analysis test, liquid plastic test and specific gravity test. Therefore, we can transfer the soil classification standard by Department of Construction into uniform soil classification standard to effectively classify soil & stone and fully re-use the remaining soil & stone out of construction. |
