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12 June 2009

The latest update on the Chongqing landslide rescue

Xinhua and CCTV have published updates on the Chongqing landslide rescue. The picture is looking increasingly grim given that the estimated survival time of the miners was five to seven days, and it is now a week since the landslide. Highlights of the reports are as follows: Drilling continues but to date no signs of life have been detected. Drilling (or is this tunnel construction – see below) is only …

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11 June 2009

Latest update on the Chongqing landslide

The desperate rescue attempts continue at the site of the Chongqing landslide, but time is now clearly running out for the miners. The heavy lift helicopter, the same one that assisted at Tangjiashan, is now in full operation, and the drilling continues using 20 machines according to this report. The drilling operations have now reached 100 m below the surface and thus have reached the position of the portal. Unfortunately …

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9 June 2009

Chongqing landslide update – 9th June

Image source: http://uk.news.yahoo.com/19/20090609/img/pwl-china-landslide-death-9-6f14af6c0f4b.html The latest news from the Chongqing landslide site is as follows: Attempts to build a tunnel to the trapped miners continue. The heavy lift helicopter is now in operation. Electric cables and a generator have been installed to provide power to the ongoing operations; Heavy rain has now reduced to drizzle, but the water depth in the barrier lake increased by a metre in 24 hours; Operations …

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8 June 2009

Background to the Chongqing landslide

According to this report, rescue operations for the 27 miners trapped in a mine beneath the Chongqing landslide have been suspended due to bad weather. As I mentioned in my earlier post, working on a fresh rockslide deposit is exceptionally dangerous, so this is a wise decision. However, the outlook for the trapped miners must be looking increasingly bleak, given that it now appears that they are trapped 200 m …

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7 June 2009

The race against time to save 27 miners trapped below the Chongqing landslide

Image from: http://topiclinks.boston.com/photo/07Nr7zUf5l1W1 In China there is now a dramatic race against time being played out as rescuers race to reach 27 miners trapped below the Chongqing landslide. Xinhua is reporting that the two entrances to the Jiwei Mountain Iron Ore mine were blocked by the landslide. The trapped miners are likely to be able to survive for five to seven days, so there is very limited time available. Rescuers …

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6 June 2009

Illustration of the scale of the Chongqing rockslope failure

The landslide at Chongqing is very large – it has an estimated volume of 3.5 million cubic metres. The scale of this is well-illustrated by this image from Suomen Kuvalehti, which shows rescuers walking across the landslide debris:

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Update on the Chongqing landslide

Xinhua is now reporting that 79 people have been killed in the catastrophic landslide in Chongqing. In addition, 27 miners are trapped in a mine whose adit has been buried. Xinhua has also released an image of the source zone of the landslide (showing continued rockfall activity): And also the landslide deposit. It is now appears that this is a massive and catastrophic rock slope failure:

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22 May 2009

Sinorock conference report – the Wenchuan Earthquake session

Yesterday there was a special session of the Sinorock Conference in Hong Kong, focused on the Wenchuan Earthquake. This involved six presentations and then a lively round-table discussion. This is a brief review. The first talk was given by colleagues from Chengdu University of Technology on the topic of the landslides triggered by the earthquake. This was visually spectacular, emphasising the scale, density and impact of the landslides that were …

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Sinorock presentation file on the Wenchuan (Sichuan) Earthquake

Today there was a session on the Wenchuan Earthquake at the Sinorock conference in Hong Kong. I was invited to participate in the panel discussion, for which I put together the following presentation highlighting a few critical issues: http://www.authorstream.com/player/player.swf?p=191786_633785600804989257Uploaded on authorSTREAM by Dr_Dave You should be able to review the presentation above or to download it the Powerpoint file if you wish (from here if necessary). I will write a …

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13 May 2009

So what have we learnt from the Wenchuan (Sichuan) Earthquake?

Driving home from work last night, and bored with listening to endless discussions on the radio about the ways in which politicians use the system to personal gain, I started pondering what we have learnt from the Wenchuan Earthquake a year ago. The media yesterday understandably focused on collapsed schools. We have known for years that critical buildings in earthquake zones need seismic reinforcement, so this is hardly new. These …

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