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, 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, stable and accurate.
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。
The cover should be equipped with lifting cover and crowbar slot; in the area where the outdoor temperature is not more than - 20 ℃, the well should be set as thermal insulation wellhead, and wooden thermal insulation well cover should be added.
（2）盖板顶面标高应力求与路面标高一致，误差不超过±
(2) The elevation of the top surface of the cover plate shall be consistent with the elevation of the road surface, and the error shall not exceed ±
5cm，当为非路面时，井口须略高于路面，但不得超过50mm，且做坡度为0.02的护坡。
When it is non road surface, the wellhead shall be slightly higher than the road surface, but not more than 50 mm, and the slope protection with a slope of 0.02 shall be made.