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。

The inspection well is an important supporting structure in underground pipelines, which has an important impact on the function and environment of the city. In the advanced developed countries, the early concrete inspection wells are very early, of which the precast assembly type relative concrete masonry type has the advantages of high strength, tight joint, no leakage and rapid construction and installation, which has been popularized rapidly in recent years.

雨污水检查井

Rain water inspection well

预制混凝土检查井由底板、室盖筒圈等部分组成。各件均采用钢筋混凝土材料工厂化生产，施阶段现场组合拼装后成为整体检查井。检查井混凝土强度等级C40，抗渗等级S8，外观质量，表面平整、光滑、棱角清淅、无蜂窝麻面。

The precast concrete inspection shaft is composed of the bottom plate, the chamber cover and the cylinder ring. All parts are manufactured with reinforced concrete material and assembled at assembly stage to become an inspection well. Concrete strength grade C40, S8, appearance quality, surface smoothness, smooth edges, clear edges, no honeycomb pockmarks.

预制混凝土检查井按其井室形状可分为圆形和矩形，按材料性能可分为普通预制混凝土检查井和耐腐蚀预制混凝土检查井。其与管道的连接方式可采用刚性接口，也可采用柔性胶圈接口。预制混凝土检查井井壁踏步、井壁开孔或预留管口的尺寸、位置和数量以及吊环或吊装孔位置可由设计确定。预制混凝土检查井可依据检查井各部件的尺寸、重量和具体生产方式采用单件制作或部分部件整体制作。预制混凝土检查井各构件之间采用企口连接，以提高整体稳定性和严密性。预制钢筋混凝土装配式雨、污水检查井为同一井型，雨、污水检查井井筒高度，可通过多节预制构件组合调节。此种设计的优点是：可减少生产厂家的模具数量，便于构件的系列化、标准化、装配化；井室高度可调，可满足现场不同埋深、不同井深的需要；可以有效地降低生产成本。

According to the shape of the well chamber, the prefabricated concrete check well can be divided into round and rectangular. According to the material performance, it can be divided into common precast concrete check well and corrosion resistant precast concrete check well. The connection between the pipe and the pipe can be rigid or flexible. The size, location and quantity of precast concrete inspection for Ii Kabeho, borehole wall or reserved orifice, and location of hoisting rings or hoisting holes can be determined by design. Precast concrete inspection wells can be manufactured in whole or in part according to the size, weight and specific production mode of each part of the inspection well. The precast concrete inspection wells are connected with each other to improve overall stability and tightness. The precast reinforced concrete assembled rain and sewage inspection wells are the same well type. The height of the wellbore of the rain and sewage inspection wells can be adjusted by a combination of prefabricated components. The advantages of this design are that it can reduce the number of mould manufacturers, facilitate the serialization, standardization and assembly of the components; the height of the well chamber can be adjusted to meet the needs of different burial depth and different well depth in the field, and the production cost can be effectively reduced.

预制装配化混凝土检查井主要成型方式：

The main forming methods of precast concrete inspection wells are:

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。

Casting plus auxiliary vibration (insert vibrator) molding process - plastic concrete, steam curing.

芯模振动成型工艺——干硬性混凝土，速脱模。

The core mold vibration forming process - dry 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 molding - dry 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 or suspension roll forming process -- plastic or dry concrete steam curing.

振动台成型工艺——干硬性混凝土，速脱模。

Shaking table forming technology - dry concrete, quick demoulding.

检查井不但广泛用于市政道路、建筑小区、污水处理，同时还在电力工程、通讯工程、消防工程、热力工程、自来水工程等领域。

The inspection wells are not only widely used in municipal roads, building blocks and sewage treatment, but also in the fields of power engineering, communication engineering, fire engineering, thermal engineering, water engineering and so on.

用于电力电信工作井，其由底座,井室,井盖,人孔井筒组

The utility model is used for power telecommunication working wells, which is composed of a base, a well chamber, a manhole cover and a manhole wellbore group.

随着我国 “地下基础设施建设” 全面推开，今后几年甚至是持续十多年，各种用途的混凝土箱涵、预制混凝土检查井等需求量巨大，而“预制混凝土”由于相比“现浇施工成型”在生产、施工、质量、综合造价等各方面的优势，在国内将进入一个发展应用热期。

With the development of "underground infrastructure construction" in China, the demand for concrete box culverts and prefabricated concrete inspection wells for various purposes is huge in the next few years for the next few years, and the advantages of "precast concrete" are compared with the advantages of "cast in place construction" in production, construction, quality, comprehensive cost and so on. In China, it will enter a period of development and application.