检查井是地下管道中重要的配套构筑场，对城市功能和环境有着重要影响，传统的井用粘土砖砌筑而成。国外先进发达国家很早混凝土检查井，其中，预制装配式相对混凝土砌城式又具有强度高，接缝严密，无渗漏，施工安装快等优点，近几年得发较快推广。
Inspection well is an important supporting construction site in underground pipeline, which has an important impact on urban function and environment. The traditional well is built with clay brick. The concrete inspection well of foreign advanced developed countries is very early, among which, the prefabricated type has the advantages of high strength, tight joint, no leakage and fast construction and installation compared with the concrete masonry type, which has been popularized rapidly in recent years.
预制装配化混凝土检查井主要成型方式：
The main forming methods of prefabricated concrete manhole are as follows:
浇注加辅助振动（插入振动器）成型工艺——塑性混凝土、蒸汽养护。
Pouring and auxiliary vibration (insert vibrator) forming process - plastic concrete, steam curing.
芯模振动成型工艺——干硬性混凝土，速脱模。
Core mold vibration molding technology - dry and hard concrete, quick demoulding.
高频附着式振动器成型——干硬性混凝土，速脱模。
High frequency attached vibrator forming - dry and hard concrete, quick demoulding.
离心工艺或悬辊成型工艺——塑性或干硬性混凝土蒸汽养护。
Centrifugal process or roll forming process - steam curing of plastic or hard concrete.
振动台成型工艺——干硬性混凝土，速脱模。
Shaking table forming technology - dry and hard concrete, quick demoulding.