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Sep 22, 2021 · Construction projects that do not meet the CDM notification thresholds are known as non-notifiable projects. Being non-notifiable means they do not need to be notified to the HSE. Other than not being notifiable, the CDM regulations still apply - in full!
What is Non-Intrusive Inspection (NII)? You cannot do “a bit of NII” Definition: NII is a process in which • Inspection is aimed at replacement or deferment of internal visual inspection (IVI) • Planning and evaluation is carried out to ensure the inspection meets a specific set of criteria. NII is not:
- 1 General
- 2 Phased Investigation
- 3 Geotechnical Category
- 4 Character and Variability of The Ground
- 5 Positioning of Investigation Points
- 6 Investigation Point Spacing
COMMENTARY ON 17.1 A range of methods is available for use in ground investigations; these include non-intrusive methods, such as geophysical surveying (see Section 5) and intrusive methods, such as excavations and boreholes (see Section 4 and BS EN ISO 22475-1) and probing (see Section 7). The factors determining the selection of which method or m...
Following the desk study, a ground investigation should normally be performed in phases in accordance with BS EN 1997-2:2007, Section 2. These phases are preliminary investigation, design investigation, controlling and monitoring during construction; the first two investigation phases may be carried out in a single site visit. The initial phase (pr...
The investigation should be appropriate to the geotechnical category and should yield sufficient information on which to base a safe and economical design of the project; the categorization of structures is given in BS EN 1997-1as follows: 1. Category 1 — small simple structures with negligible risk; 2. Category 2 — conventional structures with no ...
COMMENTARY ON 17.4 Irrespective of the geotechnical category, the greater the natural variability of the ground, the greater the extent of the ground investigation required to obtain an indication of the character of the ground. The depth of exploration should usually be determined by the nature of the works proposed, but it might be necessary to e...
The points of investigation, e.g. geophysical measurements, boreholes, probings, pits, sampling or measurements, should be so located that a general geological view of the whole site can be obtained, providing details of the engineering properties of the ground and of groundwater conditions. More detailed information should be obtained at positions...
Investigation points should be spaced in accordance with BS EN 1997-2:2007, Annex B, unless there is good reason not to do so, which might include the structure, experience and prior knowledge of the ground conditions. NOTE Additional rules for low rise buildings are given in BS 8004. Where a structure consists of a number of adjacent units, one in...
Mar 11, 2020 · HOIS has announced the launch of an updated recommended practice for non-intrusive inspection (NII) of pressure vessels (HOIS-RP-103), the result of HOIS work on NII guidance.
The proposed project is a content analysis of non-intrusive data. That is, the method of data analysis is content analysis, and data comprise information obtained without engaging or disturbing the activity of other people - hence the term ‘non-intrusive’.
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Mar 18, 2024 · Efficiently clearing large areas up to 6 metres in depth, non-intrusive UXO surveys are ideal for greenfield sites or areas where ground disturbance must be minimised. Brimstone offers three types of non-intrusive survey: pushcart, towed-array, and drone.
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What is non-intrusive inspection (NII)?
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What are Nii methods?
determine the radar’s ability to detect machine health in a non-invasive manner, using radar sensor to detect machine displacement due to vibration caused by machine fault in shaft misalignment and gearbox teeth damage.
