PURPOSE: A removable barrier wall having an extension portion is provided to prevent a cold and dry wind, polluted air, moisture, or dust from a direct damage to a passenger and prevent the root part of a tree from a fatal damage through the bottom gap of a movable barrier wall.CONSTITUTION: A removable barrier wall having an extension portion comprises multiple support bars(110), a cutoff sheet(120), and an auxiliary support(130). Multiple support bars is installed erectly in the state of being separated with each other over the whole range where a removable barrier wall is installed along the route between trees planted on or beside a road. A cutoff sheet is formed long along a route where multiple support bars are installed, is fixed to the multiple support bars, and comprises a cutoff portion(122) and an extension portion(124). A cutoff portion is formed into a predetermined height, and prevents a cold or hot wind, polluted air, moisture, or dust from a direct damage to a passenger. An extension portion is extended from the lower end of a cutoff portion and shields a gap between the cutoff portion and the ground. An auxiliary support is equipped in the lower end of a support bar, is extended to the front-rear direction, and reinforces a supporting force by contacting the ground when being installed.COPYRIGHT KIPO 2013본 발명의 연장부를 가지는 간이 차단벽은, 도로 및 도로변에 식재된 나무 사이의 경로를 따라 복수 개가 서로 이격된 상태로 기립 설치되는 지지대 및 상기 복수 개의 지지대가 설치된 경로를 따라 길게 형성되어 상기 복수 개의 지지대에 고정되며, 소정 높이로 형성되는 차단부와, 상기 차단부의 하단으로부터 연장되어 상기 차단부와 지면 사이의 틈을 차폐하는 연장부를 포함하는 차단시트를 포함한다.
