井室质量要求及控制要求
Well chamber quality requirements and control requirements
1、必须互相垂直，不得有通缝，必须保证灰缝饱满、平整，抹面压光，不得有空鼓、裂缝等现象。
1. They must be perpendicular to each other, and there must be no straight joints. The mortar joints must be full and flat. The plastering and calendering must be carried out without hollowing and cracks.
2、井内流槽应平顺，踏步安装牢固，位置准确，不得有建筑物垃圾等杂物。
2. The chute in the well shall be smooth, the step installation shall be firm, and the position shall be accurate, and there shall be no building garbage and other debris.
（1）井框、井盖必须完整无损，安装平稳、位置准确。
(1) The well frame and cover must be intact, installed stably and accurately.
3、沟管上半圈墙体按规定砌砖拱圈，480mm×480mm里弄检查井采用砖砌收口，收口高度500mm，每层双面收进25mm。
3. The upper half of the wall of the trench pipe shall be bricked with arch ring according to the regulations. The inspection well of 480mm × 480mm Lane shall be bricked up with a closing height of 500mm, and each layer shall be retracted with 25mm on both sides.
4、安放铸铁盖座应先铺厚度为15mm的1:2水泥砂浆，标高校正后安置，盖座四周用C20细石混凝土嵌牢。
4. The cast iron cover seat shall be paved with 1:2 cement mortar with a thickness of 15mm, which shall be placed right after the standard. The cover seat shall be embedded with C20 fine aggregate concrete.
（1）井盖安装应做到轻便、牢靠、型号统一、标志明显；井
(1) The installation of well cover shall be light, reliable, uniform in type and marked clearly
盖上配备提盖与撬棍槽；在室外温度不大于-20℃的地区，应将井中设置为保温井口，增置木制保温井盖板。
Cover and crowbar groove shall be provided on the cover; in the area where the outdoor temperature is not greater than - 20 ℃, the well shall be set as thermal insulation wellhead, and wooden insulation well cover plate shall be added.