形式多样的检查井（包括圆形、矩形和异形检查井）是城市道路、密集生活小区地下排水系统、电力电信系统、城市光缆通信系统等地下管线系统必需的基础设施之一。在现有的地下管线规划模式下，每一种管线都需要单独修建自己的检查井。据行业统计显示像武汉市，道路地面检查井总数超过了一百万个；贵阳市城区道路上的各类检查井总数达四万三千多个，全国的各类检查井的市场需求量十分巨大。
Various types of inspection wells (including circular, rectangular and special-shaped inspection wells) are one of the necessary infrastructures for underground pipeline systems, such as urban roads, underground drainage systems in densely populated residential areas, power and telecommunication systems, and urban optical fiber communication systems. In the existing underground pipeline planning mode, each kind of pipeline needs to build its own inspection well. According to industry statistics, there are more than one million road surface inspection wells in Wuhan; There are more than 43000 inspection wells on the urban roads of Guiyang City, and the market demand of all kinds of inspection wells in China is very huge.
一、当前混凝土检查井型式
1、 Current types of concrete inspection wells
图片
picture
【上图】是我国当前常用混凝土检查井几种型式。
[figure above] shows several types of concrete inspection wells commonly used in China.
(a) 特点是：使用马蹄形收口圈；上下井室组合；下井室独立底板；下井室上开置圆孔与管道连接。
(a) The features are as follows: using horseshoe shaped necking ring; Combination of upper and lower chambers; Independent bottom plate of down hole chamber; A round hole is arranged on the downhole chamber to connect with the pipeline.
(b) 特点是：不使用收口圈；上下井室组合；井室上独立顶板；井室下独立底板；下井室上开置圆孔与管道连接。
(b) The features are: no use of necking ring; Combination of upper and lower chambers; Independent roof on well chamber; Independent floor under well chamber; A round hole is arranged on the downhole chamber to connect with the pipeline.
(c) 特点是：圆锥形收口圈，矩形井室，上下井室组合，各开半孔，各带顶板和底板。
(c) The features are: conical closing ring, rectangular well chamber, upper and lower well chamber combination, each with half hole, each with roof and floor.
(d) 矩形井室；不使用收口圈；上蠕动泵 保定建筑设计 保定网站建设 保定网站制作 保定网络公司 保定办公家具 保定轻钢别墅 井室带顶板；下井室独立底板；下井室开置U形孔与管道连接。
(d) Rectangular well chamber; Do not use necking ring; Upper chamber with roof; Independent bottom plate of down hole chamber; A U-shaped hole is arranged in the lower well chamber to connect with the pipeline.
(e) 特点是：上下井室组合，井室上都开置圆孔与管道连接、独立顶板与底板。另外有：单一井室；带底板的井室；带柔性连接的开孔井室等。
(e) The features are: combination of upper and lower well chambers, connection of round hole and pipeline, independent roof and floor. In addition: single well chamber; Well chamber with bottom plate; Open hole well chamber with flexible connection, etc.