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It is convenient for fighting and evacuation, and a circular fire lane should be set up. With the accelerating pace of urbanization, urban land is increasingly tight, which promotes the construction of high-rise buildings. Many high-rise buildings, due to poor consideration of fire prevention design and other reasons, have many congenital hidden dangers, and fires occur from time to time, causing heavy losses. In order to create convenient conditions for fire fighting and rescue work and ensure the safety of buildings, circular fire lanes should be set up around high-rise buildings. However, regardless of the size of the building, it is indeed difficult to require the circular fire lanes. Lanes can be set up along the two long sides of the building. In order to prevent the collapse of building components in case of fire from affecting the normal operation of the fire lane, the distance between the fire lane and the outer wall should be 5m. There should be no trees, overhead pipelines, etc. that hinder the operation of climbing fire engines between fire lanes and high-rise buildings. If the total length of the building exceeds 220m, a fire lane shall be set up to pass through the building. There is no inner courtyard in the building, there are ring fire lanes around it, and fire engines crossing the building need to be set up. Q: An L-shaped high-rise building has a total length of about 170m, a length of 120m along the street, and a length of 50m along the inner street (residential road). Do you want to set up fire lanes crossing the building? A: The relevant provisions of the "Construction Regulations" and "High Regulations" consider that there is no restriction on the length of the two wings on the premise of meeting the requirements of fire fighting and evacuation. The building only needs to set up a pedestrian passageway connecting the street and the inner courtyard at the part over 80m along the street, and there is no need to set up a fire lane. In the planning of fire lanes, in addition to the relevant provisions of the "Construction Regulations" and "High Regulations", attention should also be paid to"From then on, the piglet was free from the interference of wolves and lived a happy life."四小鬼吓慌了，慌忙恳求，说少爷昏了头了。郑氏却夸道：你能不受人激，把持得住自己，这是好事。《勿忘我》是描述一名年轻男子和一名年轻女子在大学之间的爱情故事。在说再见之前，他给她一枚上面刻着“勿忘我”的花戒指，以提醒他们发自内心的话“我们将永远拥有彼此，勿忘我。如果你还爱我，请带着它，但如果这个爱被毁了，那么请把它取下来。“Netflix西语剧集《名校风暴》宣布续订第2季，全部8集用4K超高清摄像机拍摄，预计2019年上线。那群呆头鹅也傻傻地停了下来，偏着长脖子发愣，弄不明白发生了什么状况。