DEMOLITION. MONITORED. CONTROLLED.
Demolition Geotechnical Monitoring Singapore
GEOUE supports demolition monitoring in Singapore with real-time vibration, settlement, tilt, crack and structural movement monitoring to protect adjacent buildings, MRT assets, utilities and sensitive facilities.
Demolition Monitoring Singapore
Measure demolition impact before it becomes adjacent-asset damage.
Demolition in Singapore is often carried out beside occupied buildings, MRT infrastructure, utilities, industrial facilities and live public areas. The most valuable monitoring programmes establish pre-work baselines, measure vibration and movement during demolition, and provide clear evidence when demolition methods or work intensity need to change.
Ground & structural vibration
Track peak particle velocity, acceleration and frequency response from breakers, crushing, saw cutting, impact or controlled blasting.
Settlement, tilt & 3D movement
Monitor whether neighbouring structures or ground move as loads, temporary supports and demolition sequences change.
Crack & façade response
Combine condition surveys with crack gauges, tilt sensors and survey points on sensitive or ageing adjacent structures.
Alerts & method adjustment
Use warning and suspension thresholds to support timely changes in plant, sequence, impact energy or demolition technique.
Singapore Context
Demolition monitoring is becoming more explicit in Singapore’s regulatory framework.
Singapore’s dense urban environment makes demolition a monitoring-intensive activity where vibration, dust, noise and adjacent-asset condition must be managed together. BCA’s 2026 revision of SS 557 introduces mandatory real-time dust and vibration monitoring in high-density areas for relevant demolition submissions, with implementation expected for new planning-permission applications submitted on or after 1 December 2026.
MRT & railway interfaces
Where demolition affects the railway protection or safety zone, proposals may need to address vibration monitoring, demolition sequence, falling-debris impact and condition surveys.
Occupied neighbours
Residential, commercial, industrial or heritage structures may require baseline condition documentation and project-specific vibration or movement criteria.
High-density sites
Real-time monitoring becomes particularly valuable when demolition activities, sensitive receptors and limited stand-off distances coexist.
Typical Instrumentation
Different demolition risks require different measurements.
| Parameter | Typical instruments | Engineering use |
|---|---|---|
| Ground / structural vibration | Triaxial geophone, seismograph, accelerometer | Measure PPV, acceleration and dominant frequency from impact, breaking, crushing or blasting. |
| Building settlement | Precise levelling points, settlement markers | Detect vertical movement of nearby buildings, columns, pavements or sensitive structures. |
| 3D movement | Survey prism + total station / automated total station | Track horizontal and vertical displacement at many locations, including façades and rail assets. |
| Tilt / rotation | Manual tilt plate, MEMS tiltmeter | Identify rotation or differential movement that settlement readings alone may not reveal. |
| Crack movement | Tell-tale, mechanical crack gauge, electronic crackmeter | Measure whether documented pre-existing cracks change during demolition. |
| Ground movement | Inclinometer / in-place inclinometer | Relevant where basement, retaining-wall or underground demolition can influence surrounding ground. |
| Groundwater | Standpipe / vibrating-wire piezometer | Useful when demolition includes deep basements, excavation, pumping or removal of retaining elements. |
| Structural strain / load | Strain gauge, load cell | Monitor temporary supports, transfer structures or retained elements during staged demolition. |
Instrument Choice
Same physical effect. Different monitoring value.
Geophone vs accelerometer
Precise levelling vs automated total station
Manual crack gauge vs electronic crackmeter
Manual tiltmeter vs MEMS tiltmeter
Periodic vs real-time vibration monitoring
Monitoring Strategy
Condition survey → baseline → demolition → alert → verify.
The strongest demolition monitoring schemes connect measurements to the demolition method and response plan. A sensor that records an exceedance without a defined verification and escalation pathway provides limited engineering control.
1. Survey the receptors
Document adjacent buildings, foundations, cracks, sensitive equipment, rail assets and other vulnerable receptors before work.
2. Establish baseline
Record ambient vibration and initial movement so demolition-induced changes can be separated from pre-existing conditions.
3. Trial high-impact methods
Where practical, test breakers, saw cutting, crushing or other equipment at controlled intensity before full production.
4. Monitor critical phases
Increase frequency when heavy elements are dropped, structural load paths change, supports are removed or impact energy rises.
5. Validate exceedances
Check activity logs, sensor mounting, ambient sources and correlated instruments before attributing an event to demolition.
6. Change the method if required
Adjust plant, impact energy, drop height, sequence, cutting method or buffer measures when warning or suspension criteria are reached.
Verified Case Studies
Real demolition projects show what monitoring can control.
The following are independent published examples—not GEOUE projects. GEOUE only includes project details that can be traced to the cited source.
Demolition of existing buildings at No. 16 Jalan Buroh
A published project monitoring report identifies instrumentation and monitoring for demolition works at No. 16 Jalan Buroh, Singapore. The report includes eight ground settlement markers and three vibration sensors, with defined alert and suspension levels.
Source: project monitoring report →Park East Freeway Demolition
NCHRP documents vibration assessment for demolition of freeway structures beside three historic buildings, including one only about 20 ft from the freeway structure. Building-specific vibration criteria were developed and vibration monitoring was conducted during demolition; the case reports no apparent demolition-related damage.
Source: NCHRP 25-25 Task 72 →Doyle Drive / Presidio
The Doyle Drive project passed close to historic Presidio buildings. The published case specified demolition approaches intended to reduce vibration, including lowering viaduct elements by crane or using earthen cushions rather than simply dropping structures, with vibration monitoring used to control impacts.
Source: NCHRP 25-25 Task 72 →Concrete slab foundation demolition
A sensitive demolition at the Orano Malvési uranium-processing centre used two triaxial real-time vibration monitors positioned about 2 m and 5 m from hydraulic-rock-breaker activity. Monitoring validated the method; the published case reports no vibration exceedances or damage and completion in three days instead of the initially projected month.
Source: Sigicom / CATM case study →Wuhan Jiaotong School building-group demolition
Researchers measured ground vibration during one-off blasting demolition of multiple buildings and analysed peak values and frequency content. The reported dominant frequencies were 5–10 Hz; the study concluded that the demolition did not cause destructive effects on surrounding buildings and highlighted the importance of vertical collapse vibration.
Source: Earthquake Engineering and Engineering Dynamics, 2019 →PingTai Mansion ultra-deep foundation pit
A 2021 case study examined blasting demolition of internal supports in an ultra-deep foundation pit under a complex urban environment. Real-time deformation monitoring of the retaining structure and surrounding buildings was analysed after blasting, with reported deformation remaining within a reasonable range.
Source: Geotechnical Investigation & Surveying, 2021 →KOGAS Office Building explosive demolition
The KOGAS Bundang office-building demolition used more than 550 electronic detonators with a carefully designed collapse direction. The published case explicitly addresses measurement plus mitigation of shock vibration, noise and dust to protect nearby buildings and facilities.
Source: Korean Society of Explosives & Blasting Engineering, 2018 →Manual demolition vibration in adjacent masonry
A 2025 experimental study instrumented a three-storey masonry building with 26 accelerometers while adjacent/manual demolition scenarios used small and large hammers, a pneumatic hammer and circular saw. Measured dominant frequencies were about 11–14 Hz, demonstrating that even small-scale urban demolition can excite building-wide modes.
Source: peer-reviewed experimental study →Why GEOUE
Monitoring designed around demolition method and adjacent-asset risk.
GEOUE can structure demolition monitoring around the project’s real receptors and demolition sequence, combining building monitoring, vibration monitoring, survey, geotechnical instrumentation and remote data workflows.
Singapore-focused planning
Monitoring scopes can be aligned with dense urban sites, MRT interfaces, industrial facilities and evolving Singapore demolition requirements.
Real-time vibration capability
High-impact demolition activities can be monitored continuously with alerts linked to project-specific warning and suspension criteria.
Movement + vibration together
Where risk extends beyond nuisance vibration, GEOUE can integrate settlement, 3D movement, tilt, crack or ground monitoring.
Baseline and condition logic
Pre-work readings and condition surveys help distinguish demolition-related change from existing defects or ambient vibration.
Manual + automated monitoring
Automation can be concentrated at sensitive receptors while manual survey and verification methods provide independent checks.
Engineering review
Monitoring data is reviewed against demolition activities, thresholds and correlated instruments—not treated as an isolated dashboard output.
Demolition Monitoring FAQs
Questions project teams commonly ask.
What is normally monitored during demolition in Singapore?
When is real-time vibration monitoring preferable?
Why is a pre-demolition condition survey important?
Can vibration monitoring alone prove that a building is unaffected?
Can monitoring influence the demolition method?
Can GEOUE support demolition close to MRT or sensitive facilities?
Discuss Your Demolition Project
Planning demolition in a sensitive Singapore environment?
Share the demolition method, structure type, adjacent buildings or infrastructure, working distances and any project monitoring criteria. GEOUE can discuss an appropriate combination of vibration, movement, building and geotechnical monitoring.