Plastic inspection wells, commonly known as "plastic manhole" is arranged in the plastic drainage pipeline interchange, bend, or slope change, where the diameter of pipe line or drop every certain distance, drainage for affiliated regular inspection, cleaning and dredging pipeline structures.

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 wells of plastic inspection wells are disposable injection molding, and fittings such as reducer, variable angle joint and rubber seal ring are used to change the connection between diameter and angle. The plastic inspection well has developed well covers, wellbore and related accessories, and the pavement load has been operated around the inspection well through the well cover and well seat, avoiding the damage of the pavement load to the inspection well. The well seat has the function of floating up and down, and it can adapt to the change of the road surface actively. At the same time, the shaft adopts special shaft, and it can intercept the corresponding length according to the depth of the site, which is flexible and convenient. Well, (a) pipe connection road and well base with rubber sealing ring flexible socket type connection or heat shrinkable sleeve connection, can adapt to changes in a small range of angle, convenient construction, good sealing performance, anti leakage, effectively prevent the two pollution of groundwater, is a kind of environmental protection and energy saving building materials.

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。

Plastic inspection wells can be divided into rainwater plastic inspection wells and sewage plastic inspection wells according to their applications. They are divided into building inspection wells for drainage and 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。

A plastic inspection well consists of a well, a wellbore, a well cover and a plastic inspection well. Buried drainage pipes can be used in the well bore of the inspection well, such as PVC-U double axial hollow tube and HDPE hollow winding pipe.

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 takeover, there are starting well seat, straight well seat, three - way well seat, four - way well seat, 90 - degree elbow. In order to adapt to all kinds of drainage conditions, plastic inspection wells are equipped with plastic inspection well fittings, including inner and outer diameter transfer joint, saddle joint, variable diameter joint, confluence joint and variable angle joint. These parts and wells 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 inspection well cover can use cast iron check shaft cover, composite material inspection well cover, steel fiber concrete check well cover. The quality conforms to the requirements of the current "plastic inspection well for the drainage of residential buildings" CJ/T233-2006. The color is white or gray, the inner and outer walls of the wellbore should be smooth and the surface should not have bubbles, cracks, sags, uneven color and color discoloration lines. There is no crack and crack under the static load pressure of 15KN.

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) residential area (residential, public buildings, factories etc.), municipal, urban and rural industrial park, the transformation of the old city within the scope of buried plastic drainage pipe diameter is less than 1200mm, the buried depth of not more than 8m of plastic drainage engineering design, construction and maintenance.

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) general soil, soft soil soil, seasonal frozen soil soil and collapsible loess soil condition, plastic drainage inspection well construction.

3）抗震设防裂度为9度及9度以下的地区。

3) the seismic fortification crack is 9 degrees and less than 9 degrees.

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 the general lane is based on the total weight of 15t (back wheel pressure 5T), and the ground load of the fire lane is designed according to the total weight of the car 30t (the rear wheel pressure 6T).

5）地下水位按地面下不高于1.0m设计。