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Basement excavation under a semi-detached house causes collapse
Basement excavation under a semi-detached house causes a collapse.
10 March 2022
CROSS Safety Report
Report ID: 1063
Region: CROSS-UK
Inadequate design for basement works
An inadequate structural design for alterations to a basement led to structural distress within a substantial five-storey townhouse.
21 November 2022
CROSS Safety Report
Report ID: 1132
Region: CROSS-UK
Delay by party wall surveyor adds to risk
A party wall surveyor causes delay which prevents a dangerous wall from being made safe in a timely manner.
10 March 2022
CROSS Safety Report
Report ID: 1010
Region: CROSS-UK
Lack of control on site when underpinning
The concern is in relation to the sequencing of construction and the lack of control on site from competent persons during underpinning works.
1 October 2011
CROSS Safety Report
Report ID: 241
Region: CROSS-UK
Unsuitable underpinning
When reviewing a consulting engineer’s proposal to underpin a party wall, the reporter noticed that there was insufficient vertical load to maintain stability under lateral load from the retained height of soil.
1 July 2010
CROSS Safety Report
Report ID: 175
Region: CROSS-UK
Basement party walls
The client's consulting engineer had designed a new basement but, when queried by the consulting engineer for the main contractor, was unable to provide survey information for the adjoining property.
1 January 2014
CROSS Safety Report
Report ID: 361
Region: CROSS-UK
Retaining wall excavation collapse
A 6m deep excavation formed for constructing a retaining wall on a domestic project collapsed due to insufficient propping.
1 July 2019
CROSS Safety Report
Report ID: 800
Region: CROSS-UK
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