在-50˚C的条件下修复仍在河中的船体 (2022)
Repair a ship’s hull still in the river in -50˚C (2022)

原始链接: https://eugene.kaspersky.com/2022/04/26/how-to-repair-the-underside-of-a-ships-hull-still-in-the-river-in-50%CB%9Ac-yakutsk/

尽管网络安全工作仍在进行,作者分享了最近前往西伯利亚雅库茨克旅行的经历。前往雅库茨克的旅程平淡无奇,但这座城市和附近的造船厂却引人入胜。 最令人印象深刻的是扎泰造船厂,那里的船只以一种独特的西伯利亚方式进行维修——*在冰面上*。由于缺乏传统的干船坞,工人们费力地用链锯切割冻结的勒拿河冰层,以便接近船体和螺旋桨。 船队包括一些不寻常的船只,甚至有些配备了轮子,以便在浅水河道中航行。新的造船设施也在建设中。作者注意到冰锯组的工作非常艰苦,但报酬丰厚,并分享了记录这一非凡维修过程的照片。这一天以新闻发布会结束,为这次独特的旅游体验画上了圆满的句号。

## 极寒环境下的船体维修 - Hacker News 摘要 Hacker News 的讨论围绕着卡巴斯基(Kaspersky.com)的一篇文章,详细描述了在俄罗斯一条河流上 -50°C 的温度下进行的船体维修。 严苛的环境需要独特的技巧,包括工人们切割冰层以接近船体——这是一项危险的工作,金属工具会迅速冻结在冰上。 评论者分享了相关视频,包括一个女性为船体维修切割冰层的视频,以及一个展示雅库茨克生活的 YouTube 频道。 讨论延伸到极端寒冷条件下工具功能(丙烷冻结、需要替代加热方法)以及纪录片《长途圆行》和随后的电动自行车旅行。 一个相关的争论涉及与俄罗斯政权有关联的个人发布的内容的伦理问题,特别是卡巴斯基,一些人认为鉴于乌克兰的持续冲突,不应随意欣赏他的内容。 讨论还涉及 HN 的发布系统以及帖子可能被重新发布以获得更大可见性的可能性。
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原文

Despite these hard times, we continue our work saving the world from all manner of cyber-maliciousness. We adapt; we carry on. Meanwhile, I hope my travel notes and photos will bring a little cheeriness to all who view them – because there’s hardly a better way to do that than with the beauty of nature (and a spot of -50° adventure).

Hi folks!

After our overnight stay in Khandyga, it was back on the road and heading for Yakutsk. Thing is – that stretch of road to Yakutsk was so thoroughly boring that there’s absolutely nothing of interest to report to you, dear readers. Accordingly, I’ve fast-forwarded to Yakutsk; for there can never be anything boring about the extraordinary Siberian city of Yakutsk…

Here‘s a primer for what the city’s all about – from last year. We basically repeated much of the itinerary detailed in that post, so I won’t duplicate here. As to this year’s novelty…

We visited… the dockyard of Zhatay, just outside Yakutsk. A dockyard? Eh?! How could that possibly be of interest to a group of very well-traveled – seen-practically-everything – tourists? Actually…

Meanwhile, here’s the Lensky Fleet…

…Actually, there is something unique about these river docks. Soon, 100 – 130 boats/ships will be navigating the Lena river here. But some need repairing…

However, there aren’t enough dry-docks here – the kind you need to access and repair the underside of a ship, the propellers, etc. So they came up with a unique alternative to dry-docks. Simply put – they cut away the ice around the part that needs to be accessed! Kinda like this:

But it’s not that straightforward. What they have to do is cut away a layer at a time, gradually. They first cut away – rather, saw away, with a chainsaw – the top layer of ice. Then they wait – for the river water underneath to freeze to the required depth, and they go again at the newly-formed ice with the chainsaw, on and on like that until the part of the ship that needs working on becomes accessible:

I’m sure maritime-naval buffs who live in warmer climes would find this way of doing things curiously and exotically unexpected ).

Here’s a whole trench dug out of the ice – probably to get access to the propeller. You can see the blocks of ice that came out of it to the left:

Ship repairs – Siberian-winter style ).

A ship with… wheels! Apparently the tides here don’t change much, and the level of the water in the Lena is sometimes real shallow. Accordingly, only ships whose undersides don’t go deep are suitable; best all though – ships with wheels for when it’s simply too shallow for a ship to float above the riverbed:

The paddle-wheel’s internal workings ->

The guys who do the ice-sawing – also one lady – apparently get good pay. Just as well for such physically-demanding and no doubt dangerous work outside in the cold:

Here they are with pick-axes and chainsaws! ->

Ships aren’t only repaired here; they’re also constructed from scratch. And of late – new shipbuilding production facilities are being built:

And a few photos taken by DZ:

Needs a caption; any ideas? ->

Moorings and cables:

Brutal scenes:

A few more pics…

The press caught up with me…

And that was about it for the day’s unique tourism!

The rest of the photos from the MYB expedition are here.

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