“But settling and tilting clearly continue,” he said, adding: “There is no clear explanation why this is happening, which I think is very troubling.” If this second test is successful, we look forward to a resumption of work and completion of the project.”īob Pyke, a veteran geotechnical expert, cautioned against overinterpreting the limited available data. “A second test will be performed soon to confirm that other aspects of the work can be performed in an acceptable manner. “This demonstrates that it is possible to install the remaining casings,” he told homeowners. Last week, soon after crews installed the 100 foot long, three foot wide steel casing in the first test phase, Hamburger declared the test was “successful,” stressing that building movement over two days was approximately one hundredth of an inch. It also occurred after Hamburger had assured residents that settlement had slowed considerably because of the work stoppage. 20 – a timeframe when pile and casing installation had been halted. The biggest recorded drop – slightly more than 1/20th of an inch – was recorded the period ending Sept. That added settlement, however, nearly matched the largest drop logged since all pile installation work stopped on Aug. Sign up for NBC Bay Area’s Housing Deconstructed newsletter. Get a weekly recap of the latest San Francisco Bay Area housing news.
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