高速公路路堑景观设计方法研究

Design Method of Expressway Cutting Landscape

高速公路路堑景观是高速公路线性景观的重要组成部分。为提升高速公路路堑景观视觉质量,本文提出了以驾乘人员动态视觉特性为出发点,以生态恢复为目标点,以环境心理感知为提升点的高速公路路堑景观设计方法。路堑边坡采取自然式造景手法,充分利用地域环境特点,提高行车感知效果;碎落台采用规则式造景手法,一级碎落台注重生态恢复和提高行车安全性,二级碎落台注重景观层次丰富性;挡土墙采取墙园式造景手法,利用大尺度流线型以增强高速公路的地域特色。通过京台高速公路(泰安至枣庄段)项目实施,形成了植物群落高低错落有序且稳定安全的边坡景观、生态友好与层次丰富的碎落台景观以及地域文化浓郁的挡土墙景观。本研究提出的路堑景观设计方法将对未来类似条件下高速公路路堑景观设计提供参考和借鉴。

Expressway cutting landscape is one of the important contents of expressway linear landscape.In order to improve the efficiency and safety value of expressway cutting landscape,the design method of expressway cutting landscape is put forward,which took the dynamic visual characteristics of drivers as the starting point,ecological restoration as the target point,and environmental psychological perception as the promotion point.The cutting slope adopts the natural landscape technique,makes full use of the regional environmental characteristics,and improves the driving perception conditions.The berm at the foot of cutting slope adopts regular landscaping techniques.The first-level berm at the foot of cutting slope focuses on greening restoration to improve driving safety,and the second-level berm at the foot of cutting slope can enrich the landscape level.The retaining wall adopts the wall garden landscaping technique to enhance the regional characteristics of the expressway by using the large-scale streamline expression.We used the design method of highway cutting landscape,guide the landscape design of Beijing-Taizhou expressway(Taian to Zaozhuang section),realize the orderly slope stability safety of landscape plant community strewn at random discretion,eco-friendly shattered landscape and regional culture of retaining wall landscape.The cutting landscape design method proposed in this study will provide a reference for highway cutting landscape design in the future.