Chaiyaput, Salisa

Preferred name

Chaiyaput, Salisa

Alternative Name

CHAIYAPUT, SALISA

Chaiyaput, S.

Chaiyaput, Salisa Fern

Main Affiliation

School of Engineering

salisa.ch@kmitl.ac.th

Now showing 1 - 7 of 7

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Inspection of bridge failure during construction: A case study of a bridge over a drainage canal
(2025-04-01)
Suksawat, Taweephong
;
Ayawanna, Jiratchaya
;
Nghia-Nguyen, Trong
;
Meetorranee, Thawidej
;
Promthong, Boonchom
This paper presents a case study of a bridge failure during construction in an infrastructure development project in Nakhon Si Thammarat, Thailand. This highlights the critical role of thorough inspection and early detection of structural failures. The failure, related to foundation-related issues, shows how even minor errors in the construction sequence can lead to significant structural problems. Key steps for evaluating foundation failures are assessing the structure's movement and utilizing an inclinometer to determine ongoing failure. Resistivity surveys, in conjunction with screw driving sounding tests (SDS), were performed to assess soil properties, while the finite element method (FEM) was applied to validate the observed failure behavior. The results show that an inclinometer effectively monitored these structures’ movement. The resistivity surveys proved useful in identifying soil layers in the wide area. Meanwhile, the SDS tests were able to determine the soil's undrained shear strength. FEM simulations provided valuable insights into the behavior of underground structures. Consequently, comprehensive inspections are essential to mitigate foundation failure risks and ensure critical structures’ safety and longevity.
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The thickness of the soft soil layer and canal-side road failure: A case study in Phra Nakhon Si Ayutthaya province, Thailand
(2023-12-10)
Chaiyaput, Salisa
;
Suksawat, Taweephong
;
Mase, Lindung Zalbuin
;
Sugiyama, Motohiro
;
Ayawanna, Jiratchaya
Canal-side roads frequently collapse due to an unexpectedly greater soft-clay thickness with a rapid drawdown situation. This causes annually increased repair and reconstruction costs. This paper aims to explore the effect of soft-clay thickness on the failure in the canal-side road in the case study of Phra Nakhon Si Ayutthaya rural road no. 1043 (AY. 1043). Before the actual construction, a field vane shear test was performed to determine the undrained shear strength and identify the thickness of the soft clay at the AY. 1043 area. After establishing the usability of AY. 1043, the resistivity survey method was used to evaluate the thickness of the soft clay layer at the failure zone. The screw driving sounding test was used to evaluate the undrained shear strength for the road structure with a medium-stiff clay layer at the failure zone for applying to the numerical model. This model was simulated to confirm the effect of soft-clay thickness on the failure of the canal-side road. The monitoring and testing results showed the tendency of rapid drawdown failure when the canal-side road was located on > 9 m thick of soft clay with a sensitivity > 4.5. The result indicates that the combination of resistivity survey and field vane shear test can be successfully used to inspect the soft-clay thickness and sensitivity before construction. The preliminary design for preventing failure or improving the stability of the canal-side road should be considered before construction under the critical thickness and sensitivity values of the soft clay.
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Electrical resistivity survey for evaluating the undrained shear strength of soft Bangkok clay at some of the canal-side road investigation sites
(2022-01-01)
Chaiyaput, Salisa
;
Sutti, Nut
;
Suksawat, Taweephong
;
Ayawanna, Jiratchaya
A resistivity-undrained shear strength equation was proposed in this work to investigate the relationship between the undrained shear strength and electrical resistivity of soft Bangkok clay. The field vane shear and screw driving sounding tests were used to evaluate the undrained shear strength of the soft Bangkok clay from 10 field investigations of the canal-side roads. Meanwhile, the electrical resistivity was collected by the low-cost nondestructive resistivity survey method. The relationship between the measured resistivity corresponding to the undrained shear strength was expressed as a linear equation of S<inf>u</inf> = 7.061ρ with a high statistical correlation (96.20%) between the undrained shear strength and resistivity. The validation between the predicted undrained shear strength from the equation and the measured undrained shear strength from the field sites confirmed the statistically significant relation of data and the reliability of the proposed equation. By using this equation, it successfully predicted the undrained shear strength of the soft Bangkok clay at a depth of 4.00–10.00 m below the ground surface of canal-side roads (zones C, D, and E in the zonation map). The proposed new equation from the resistivity survey in this work, therefore, serves as an alternative tool to fast estimate the shear strength of soft soil in the large area for the preliminary evaluation of road construction.
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The use of asphalt waste dust for stabilization of sustainable pavement recycling
(2024-10-04)
Ayawanna, Jiratchaya
;
Suksawat, Taweephong
;
Sertsoongnern, Pimchanok
;
Chaiyaput, Salisa
The asphalt waste dust as a sustainable material for stabilizing pavement recycling, which is cold in-place recycling (consists of reclaimed asphalt pavement, crushed rock aggregate base, and ordinary Portland cement), was presented in this study. To understand the effect of asphalt waste dust on stabilizing pavement recycling, 10–30 wt% asphalt waste dust was added and compared with the behavior of pure old-asphalt pavement material and old-asphalt pavement material mixed with 3.5 % OPC. The compaction test, unconfined compressive strength test (UCS), indirect tensile strength tests (IDT), and scanning electron microscope analysis were conducted under various mixing conditions. The addition of asphalt waste dust up to 20 wt% achieved desirable results of UCS and IDT involved with microstructural development, which were beyond the standard requirements of the base course from the Department of Rural Roads and the Department of Highway. A maximum of 20 wt% asphalt waste dust can be utilized for practical use with pavement recycling in the base course.
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The Failure of Road Embankment Along the Canal during Driven Piles Construction in Thickness of Soft Sensitive Clay
(2024-09-01)
Chaiyaput, Salisa
;
Suksawat, Taweephong
;
Wongkumchun, Jakkaphong
;
Ayawanna, Jiratchaya
;
Kongsomboon, Thanadol
The pile-retaining wall at Nonthaburi rural road no. 5036 was constructed using reinforced concrete piles or driven piles combined with a concrete retaining wall. The purpose of this structure was to enhance the slope stability of the canal-side road (road embankment along the canal). The damage to the driven piles occurred during the pile construction at 18 m depth below the ground surface. The resistivity survey and screw driving sounding test were employed to investigate the thickness of soft clay layers and unexpected stiff soil layers at the failure area. The field vane shear test was employed to investigate the sensitivity of the soft clay layer. Furthermore, the finite element model was analyzed to verify the failure behaviour of the road embankment during the driven pile's construction. Consequently, the investigation revealed that the subsoil in the failure area exhibited sensitivity values. The subsoil consisted of a layer of soft clay to medium stiff clay, ranging from 2-10 m below the ground surface, while the subsoil consisted of stiff clay below a depth of 10 m. The installation of the 18-m driven pile caused a disturbance in the soft sensitive clay layer above the stiff soil layer, resulting in a reduction in the strength of the soft clay and affecting the displacement of the driven pile during construction. Furthermore, the occurrence of rapid drawdown causes water seepage to continue to flow toward the canal side. This phenomenon produces active forces on the slope of the road embankment along the canal. As a result, the road embankment along the canal side can collapse due to a disturbance in the sensitive clay layer with rapid drawdown. The result was agreed with the study findings obtained by the finite element model.
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Using Multi-Channel Surface Analysis of Surface Waves and Resistivity Survey to Evaluate Road Damage
(2026-01-01)
Suksawat, Taweephong
;
Ayawanna, Jiratchaya
;
Chaiyaput, Salisa
The study provides an analysis of road damage, which was Pathum Thani rural road no. 3012 (PT. 3012), in the Pathum Thani province, Thailand. A road was constructed along the irrigation canal with the construction of a retaining wall, while the roadway was supported with a foundation consisting of soil-cement columns. Longitudinal cracks and settlements appeared between the roadway and the road shoulder within five years after the completion of road construction. To evaluate and confirm the aforementioned problem, the soil investigation was utilized. Conventional geotechnical investigations often involve the utilization of in situ tests as the primary method, resulting in the collection of soil samples at specific locations, which do not cover a large area in the construction site. Therefore, this study aims to propose the combination of multi-channel analysis of surface waves (MASW) and resistivity survey techniques, which were employed to identify and evaluate the underlying cause of the observed damage by effectively identifying the subsurface layer throughout a large area under undisturbed conditions. The soil investigation results confirmed that the differential settlement occurred because the roadway was supported by soil-cement columns, while the road shoulder was not supported by soil-cement columns. Consequently, it was easy to recognize and confirm the problem with the imaging of the subsurface layers from the findings of those MASW and resistivity survey approaches.
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Evaluation of the road failure using resistivity and screw driving sounding testing techniques: A case study in Ang Thong province, Thailand
(2021-03-01)
Chaiyaput, Salisa
;
Suksawat, Taweephong
;
Ayawanna, Jiratchaya
This paper presents the case study of a failure of road along an irrigation canal in Ang Thong province, Thailand. The canal side road failure is a recurring problem that occurs annually due to the drought. The concept of resistivity survey related to the soil moisture; therefore, the results can be used to evaluate and confirm the potential of road failure in the weakness zones. Moreover, the screw driving sounding test is a new field testing to investigate the soil classification, estimate shear strength parameters, and estimate equivalent Standard Penetration Test (SPT) value. The study aimed to evaluate a canal side road failure, which was achieved by combining the resistivity survey and screw driving sounding test. The effectiveness of the combining site investigation was confirmed by using the 2-dimensional (2-D) finite element software. A comparison of the stability of the canal side road in the failure zone and stability zone was performed by calculating the factor of safety under low and high -water level conditions. Consequently, it was confirmed that the combination of resistivity survey and screw driving sounding test can be applied for site investigation to evaluate the stability of canal side road.

Chaiyaput, Salisa

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