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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 toThe heat energy generated by combustion is sufficient to heat the fabric to decompose it and produce combustible gas.蝉儿这样子，还怕嫁不到好人家？那自己当初的亲事是怎么来的？正想着，就听老娘又说道：云岚，我瞧蝉儿跟紫茄怪合得来的。胡敦骂道：老夫怎么养了你这样懦弱无能的儿子。　黎初遥（孙怡 饰）生在一个普通的家庭，有个可爱的弟弟初晨，姐弟两人感情甚好。可初晨在取得三千米长跑冠军后却在家中遭遇了火灾，不治身亡。黎母因此变得疯癫，最终将跟着初遥回家的李洛书（白敬亭 饰）当成了黎初晨。初晨的好朋友李洛书为照顾黎家人，以初晨的身份进入黎家。黎母有了李洛书的安抚，病情慢慢变得稳定。初遥也在“弟弟”李洛书的陪伴下正视未来。韩子墨的追随让初遥尝到爱情的味道，当她下定决心与他牵手相爱时，韩家突来的变故却使初遥惨遭挚爱的背叛，而留给她这个未婚妻的是大堆的债务。李洛书为保护初遥被要债的人打成重伤，为治好重伤致残的弟弟，她坚强孤勇，承担所有，走过最灰暗无助的日子。那个弃她于不顾的韩子墨却再次出现在她的生命中。这一次，她毫不犹豫与一直陪伴在自己身边的李洛书相爱，却不承想，二人终是逃不过责任的束缚，无奈分开。即便是再次动兵攻城，但是锐气已经耗尽，说不定海水出什么乱子，所以不能再等下去了。