下人孔位于車(chē)輛頂部，主要起到設(shè)備檢修及人孔放料的作用。

The manhole is located on the top of the vehicle and mainly serves for equipment maintenance and material discharge through the manhole.

一般情況下，車(chē)輛多采用和罐車(chē)連接的方式打料。

In general, vehicles are often connected to tank trucks for feeding.

但也有采用上部從人孔灌裝物料的情況，如需要從上部人孔灌裝物料，需要注意以下幾點(diǎn)：

But there are also cases where materials are filled from the upper manhole. If it is necessary to fill materials from the upper manhole, the following points should be noted:

（1）、人孔打開(kāi)后注意保存好螺栓，避免丟失

(1) After opening the manhole, pay attention to saving the bolts to avoid loss

（2）、多留意天氣預(yù)報(bào)，如有雨，應(yīng)提前將人孔密封螺栓重新緊固到位。如怕緊固不到位，可選擇在人孔上方再包裝一層防雨布。

(2) Pay more attention to the weather forecast, and in case of rain, tighten the manhole sealing bolts in place in advance. If you are afraid that the fastening may not be in place, you can choose to package an additional layer of rainproof cloth above the manhole.

（3）、雨后或長(zhǎng)期人孔灌裝施工，應(yīng)多留意車(chē)廂內(nèi)是否有物料板結(jié)情況，如發(fā)現(xiàn)存在物料板結(jié)情況，應(yīng)及時(shí)清理。

(3) After rain or long-term manhole filling construction, attention should be paid to whether there is material compaction inside the carriage. If any material compaction is found, it should be cleaned up in a timely manner.

（4）、人孔經(jīng)常性的打開(kāi)，會(huì)造成蓋處的密封膠條密封不到位或脫落，應(yīng)及時(shí)檢查更換。

(4) Frequent opening of the manhole can cause the sealing strip at the cover to not seal properly or fall off. It should be checked and replaced in a timely manner.

（5）、攪拌站物料存儲(chǔ)罐內(nèi)水泥長(zhǎng)時(shí)間存儲(chǔ)有可能會(huì)產(chǎn)生物料板結(jié)塊，從人孔放料時(shí)一定要特別留意，同時(shí)不要敲擊攪拌站物料存儲(chǔ)罐體，如在裝料的過(guò)程中發(fā)現(xiàn)有板結(jié)塊掉落在車(chē)廂內(nèi)，應(yīng)立即停止加料，并將板結(jié)塊取出。

(5) Long term storage of cement in the material storage tank of the mixing plant may result in the formation of biological material board clumps. Special attention must be paid when discharging from the manhole, and the material storage tank of the mixing plant should not be knocked. If any board clumps fall into the carriage during the loading process, feeding should be stopped immediately and the board clumps should be removed.

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