Plastic inspection well is commonly known as plastic "cellar", which is located at the intersection of plastic drainage pipes, turning points, pipe diameter or slope change, the place of falling water or the straight line at a certain distance, easy to check, clean and dredge the drainage structures of the pipeline.

中文名

Chinese name

塑料检查井

Plastic inspection well

外文名

Foreign language name

Plastic inspection well

Plastic inspection well

所属行业

Industry

市政工程

Municipal Engineering

应    用

Should with

建筑小区，厂房，市政道路

Building district, factory building, municipal road

优    点

Excellent point

替代砌砖检查井，施工方便，环保

Replace the brick inspection wells, convenient construction and environmental protection

解释

explain

塑料检查井的井座部分大多采用的是一次性注塑成型，以异径接头、变角接头和橡胶密封圈等配件来达到改变管径及角度的连接。塑料检查井配套开发了井盖、井筒和相关配件，路面载荷通过井盖、井座作用于检查井周围，避免了路面载荷对检查井的破坏。井座具有上下浮动的功能，可主动适应路面的高低变化，同时井筒采用专用井筒，可根据现场埋设深度截取相应长度，灵活方便。井筒、进（出）水管道与井座的连接采用橡胶密封圈柔性承插式连接或者是热收缩套连接，可适应小范围内的角度变化，施工方便快捷，密封性能好、防渗漏，有效防止对地下水的二次污染，是一种环保节能建材。

Most of the well seat parts of the plastic inspection well are used in one time injection molding. The fittings such as different diameter joints, variable angle joints and rubber sealing rings are used to change the connection of the pipe diameter and angle. The plastic inspection well has developed the well cover, wellbore and related accessories. The pavement load is used around the inspection well through the shaft cover and the well seat, avoiding the damage of the pavement load to the inspection well. The wellbore has the function of fluctuating up and down, and it can adapt to the change of the height of the road. At the same time, the shaft adopts special wellbore. It can intercept the corresponding length according to the depth of the site, and it is flexible and convenient. The shaft, the inlet (out) pipe road and the well seat are connected by the rubber sealing ring flexible socket connection or the heat shrinkable sleeve connection, which can adapt to the angle change in the small range, the construction is convenient and quick, the sealing performance is good, the leakage prevention is good, and the two pollution of the groundwater is effectively prevented. It is a kind of environmental protection and energy-saving building material.

塑料检查井按用途可分雨水塑料检查井和污水塑料检查井，应用领域分为建筑小区排水用塑料检查井和市政排水用塑料检查井。

The use of plastic inspection wells can be divided into rainwater plastic inspection wells and sewage plastic inspection wells. The application fields are divided into plastic inspection wells for Residential District Drainage and plastic inspection wells for municipal drainage.

构成

constitute

塑料检查井由井座、井筒、井盖和塑料检查井零配件组成。检查井井筒可采用埋地排水管材，如PVC-U双层轴向中空管、HDPE中空缠绕管等。

The plastic inspection well is made up of well seat, wellbore, manhole cover and plastic inspection well fittings. Buried well drainage pipes, such as PVC-U double axial hollow pipe and HDPE hollow winding pipe, can be used for inspection well.

根据接管数和角度不同有起始井座、直通井座、三通井座、四通井座、90度弯头井座等。为了适应各种排水状况，塑料检查井同时配套有内外径转换接头、马鞍接头、变径接头、汇合接头、变角接头等与之配套的塑料检查井零配件。这些零配件和井座共同用来保障整个排水系统的流通性和密封性。

According to the number and angle of the nozzle, there are initial well block, through well seat, three well seat, four well seat and 90 degree elbow well seat. In order to adapt to various drainage conditions, the plastic inspection well is equipped with internal and external diameter conversion joint, saddle joint, variable diameter joint, confluence joint, angle joint and so on. These spare parts and well seats are used together to ensure the circulation and sealing of the whole drainage system.

检查井井盖可采用铸铁检查井盖、复合材料检查井盖、钢纤混凝土检查井盖。质量符合现行《建筑小区排水用塑料检查井》CJ/T233-2006的要求。颜色为白色或灰色，井筒内外壁应光滑、平整表面不应有气泡、裂口、凹陷、色泽不均匀及分解变色线。塑料井筒井座在15KN静载载荷压力下无开裂、裂缝。

The cast iron inspection cover, composite inspection manhole cover and steel fiber concrete manhole cover can be used for the inspection well lid. The quality is in line with the requirements of the current "plastic inspection well for building drainage area" CJ/T233-2006. The color is white or gray, and the inside and outside walls of the shaft must be smooth and smooth. There should be no bubbles, cracks, dents, uneven colors and discoloring lines. There are no cracks and cracks in the plastic shaft wellbore under 15KN static load pressure.

塑料检查井适用的范围

Scope of application of plastic inspection wells

1）建筑小区（居住区、公共建筑区、厂区等）、城乡市政、工业园区、旧城改造等范围内埋地塑料排水管道外径不大于1200mm、埋设深度不大于8m的塑料排水检查井工程的设计、施工和维护保养。

1) the design, construction and maintenance of the plastic drainage pipe in the area of the residential area (residential area, public building area, factory area and so on), urban and rural municipal, industrial park, old city reconstruction and so on, the outer diameter of the buried plastic drainage pipe is not more than 1200mm and the buried depth is not more than 8m.

2）一般土质、软土土质、季节性冻土土质和湿陷性黄土土质条件下的塑料排水检查井施工。

2) construction of plastic drainage well for general soil, soft soil, seasonal frozen soil and collapsible loess.

3）抗震设防裂度为9度及9度以下的地区。

3) the area with 9 degree and 9 degrees of seismic fortification.

4）一般车道的地面荷载按汽车总重15t（后轮压5t）；消防车道的地面荷载按汽车总重30t（后轮压6t）设计。

4) the ground load of general lanes is 15t according to vehicle gross weight (rear wheel pressure 5T); the ground load of fire lane is designed according to vehicle gross weight 30t (rear wheel pressure 6T).

5）地下水位按地面下不高于1.0m设计。

5) the groundwater level is not more than 1.0m under the ground.