引用本文:蔡雨,徐林荣,钟启荣,等.基于蛛网结构相似的高速公路软基处理决策模型[J].控制与决策,2020,35(2):445-452
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基于蛛网结构相似的高速公路软基处理决策模型
蔡雨1, 徐林荣1,2, 钟启荣1, 商拥辉1,3, 周俊杰1
(1. 中南大学土木工程学院,长沙410075;2. 中南大学高速铁路建造技术国家工程实验室,长沙410075;3. 黄淮学院,建筑工程学院,河南驻马店463000)
摘要:
目前高速公路软基处理决策方法较多,在工程中得到广泛应用.这些方法从优选角度出发,从技术、经济、环境、施工等方面进行综合评价,选择最优方案,但这些方法评价指标具有模糊性,决策结果单一,适应性不强.针对以上问题,以处理效果显著的工程案例为标准,以客观6参数为评价指标,建立一种基于蛛网结构相似的高速公路软基处理决策模型.所提出的方法相较于传统范例推理法进行如下改进:1)考虑参数值变化与目标效果影响的非线性关系,提出指标参数非线性规一化处理方法;2)利用蛛网图形面积及形状差异,综合度量源范例M与目标范例O的贴近程度,提出一种新的相似度计算方法.以国内某高速公路软基处理工程为例,将所提出的方法与传统方法进行对比,结果表明,所提出的方法匹配程度较好,验证了该模型的可靠性.该模型计算便捷,结果客观,可为软基处理决策提供一种新方法.
关键词:  道路工程  高速公路  软基处理  范例推理  蛛网结构相似  决策模型
DOI:10.13195/j.kzyjc.2018.0656
分类号:TU447
基金项目:国家自然科学基金项目(51778634).
Decision model for soft-foundation treatment of expressway based on similarity of cobweb structure
CAI Yu1,XU Lin-rong1,2,ZHONG Qi-rong1,SHANG Yong-huix1,3,ZHOU Jun-jie1
(1. College of Civil Engineering,Central South University,Changsha410075,China;2. National Engineering Laboratory of High-speed Railway Construction Technology,Central South University,Changsha410075,China;3. College of Architecture and Engineering,Huanghuai University,Zhumadian463000,China)
Abstract:
At present, there are many decision-making methods for expressway soft-foundation treatment, which are widely used in engineering. By comprehensively evaluating technical, economic, environmental, and construction aspects, these methods select the optimal solution from the point of preferred selection. However, the evaluation indexes of these methods are fuzzy, the result of decision-making is single, and the adaptability is weak. Taking the engineering cases with significant effect as standard and the objective 6 parameter as evaluation indexes, a decision model for expressway soft foundation treatment based on the similarity of cobweb structure is established. The proposed method is improved from the traditional case-based reasoning method as follows: 1) Considering the non-linear relationship between the change of the parameter value and the influence of the target effect, a non-linear standardized processing method of the index parameter is proposed; 2) Utilizing the area and shape difference of cobweb structure, a new similarity calculation method is used to evaluate the closeness between source case M and target case O. Finally, taking a domestic expressway soft foundation treatment project as an example, the comparison between the proposed method and the traditional method is carried out. The results show that the proposed method has a high matching degree, which verifies the reliability of the model. The model is convenient in computation and the result is objective, which provides an new method in soft foundation decision-treatment.
Key words:  road engineering  expressway  soft foundation treatment  case-based reasoning  cobweb structure similarity  decision model

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