防撞護欄一般安裝在公路周圍，與防撞墻一樣，都可以減少發生事故時，汽車迎
面而來帶來特別大的沖擊力。防撞墻大部分為混凝土或者水泥，因為這兩種原料
制作出來的成品比較結實耐用。防撞墻的目的就是減少沖撞壓力，自然也就需要
十分堅固的材料，不管在存放模具還是水泥混凝土是都應避免碰到水，這樣會降
低他們本身的優勢特性，不能帶來好的效果，達不到使用的規范。
Crash barriers are generally installed around roads. Like crash walls,
they can reduce the impact of cars coming face-to-face in the event of
accidents. Most of the anti-collision walls are concrete or cement,
because the finished products made of these two raw materials are
relatively strong and durable. The purpose of the anti-collision wall
is to reduce the impact pressure, which naturally requires very strong
materials. No matter when storing molds or cement concrete, they should
avoid touching water, which will reduce their own advantageous
characteristics, fail to bring good results and fail to meet the use
specifications.
防撞墻模具基本上都是兩片狀的結構，在使用的時候需要將模板運送到施工現場
進行現澆加工，因為防撞墻的的設置距離與公路的長度是有關的，如果提前進行
生產的話會導致制作出來的防撞墻不能夠滿足施工的要求，必須將模具運送到公
路周邊在生產的時候需要進行拼接，一塊直板與彎板分開放置，兩塊模板之間的
距離就是公路防撞墻墻體的厚度，如果墻體過薄的話就無法達到抗撞擊的效果，
一般防撞墻的厚度都是在二十公分以上，具體的厚度需要調整防撞墻模具的頂部
的拉桿，每次生產的時候調整墻體厚度的話必須將所有的拉桿進行調節。
The anti-collision wall molds are basically two sheet structures. When
in use, the formwork needs to be transported to the construction site
for cast-in-situ processing, because the setting distance of the anti-
collision wall is related to the length of the highway. If the
production is carried out in advance, the anti-collision wall will not
meet the construction requirements, The molds must be transported to
the periphery of the highway. They need to be spliced during
production. A straight plate and a bent plate are placed separately.
The distance between the two molds is the thickness of the highway
anti-collision wall. If the wall is too thin, the anti-collision effect
cannot be achieved. Generally, the thickness of the anti-collision wall
is more than 20cm, The pull rod at the top of the anti-collision wall
mold needs to be adjusted for the specific thickness. If the wall
thickness is adjusted during each production, all the pull rods must be
adjusted.
