Cut slope stabilization by using rock bolts of comparatively short length.

Construction of a 274.5-m-long (900-ft) and 24.4-m-high (80-ft) soil (upper) and rock (lower) cut slope on the eastbound side of the Massachusetts Turnpike at mile mark 94.1 eastbound for the proposed interchange with Route 146 combined conventional engineering and soil bioengineering solutions. Geologic mapping identified three sections (east, middle, and west) that had different patterns of rock discontinuities, which controlled rock cut design. Each required a different slope design for a stable rock cut. The soil cut design was controlled by soil density, groundwater seepage, and erosion potential from seepage and surface runoff. Soil bioengineering was used to control surface drainage and erosion on the cut soil slope above the 12.2-m-high (40-ft) rock cut and rapidly revegetate the disturbed soil slope, which addressed the project's environmental and aesthetic goals. Conventional crushed-stone drains augment the living soil bioengineering drains. Woody vegetation was used to reinforce the cut soil slope surface. Branches from native living woody plants were installed into the slope face, offering surface reinforcement. Root development along branch lengths provided additional reinforcement. The hydrologic regime was modified as growing plants remove moisture through transpiration and embedded bundled branches channel water off the slope. Basic soil bioengineering stabilization principles by using live fascines and brush layers for soil and rock cut slope stabilization are presented. Discussions include preconstruction conditions, environmental benefits, vegetation harvesting and design, installation, and performance as of October 1996. Cut slope stabilization through soil bioengineering produced an environmentally, aesthetically, and mechanically sound solution, illustrating the benefits of combined technologies.

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Management Measurement Scale As A Reference To Determine Interval In A Variable

Aptisi Transactions on Management (ATM) ◽

10.33050/atm.v2i1.775 ◽

2018 ◽

Vol 2 (1) ◽

pp. 45-54

Author(s):

Qurotul Aini ◽

Siti Ria Zuliana ◽

Nuke Puji Lestari Santoso

Keyword(s):

Information Technology ◽

Quantitative Data ◽

Rating Scale ◽

Semantic Differential ◽

Short Length ◽

Measurement Scale ◽

Measuring Instrument ◽

Guttman Scale ◽

Measurement Scales ◽

Thurstone Scale

The scale is usually used to check and determine the value of a qualitative factor in quantitative measures. The measurement scale is a management in agreement that is used as a reference to determine the short length of the interval that is in the measuring instrument, so that the measuring instrument when used in measurements will produce quantitative data. The results of the scale management calculation must be interpreted carefully because in addition to producing a rough picture, the respondent's answers are not just straightforward to be trusted. Types of measurement scales: Likert scale, Guttman scale, semantic differential scale, rating scale, Thurstone scale, Borgadus scale, and various other measurement management scales. One of the most difficult jobs for information technology researchers faced with the necessity of measuring variables is: finding directions in the midst of many existing sizes. If there is a good size for a particular variable, it seems that there are not many reasons to compile a new size yourself. Keywords: Scale, Measurement, Variables.

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DEVELOPING AND SELECTING SLOPE STABILIZATION TECHNIQUES IN MANAGING SLOPE FAILURES

Jurnal Teknik Sipil ◽

10.24002/jts.v12i4.638 ◽

2016 ◽

Vol 12 (4) ◽

Author(s):

Ari Sandyavitri

Keyword(s):

Retaining Wall ◽

Value Engineering ◽

Rating Systems ◽

Slope Stabilization ◽

Rockfall Hazard ◽

Proactive Approach ◽

West Sumatra ◽

Hazard Rating ◽

Hazard Rating Systems ◽

Steep Slopes

This paper objectives are to; (i) identification of risky slopes (within 4 Provinces in Sumatra including Provinces of Riau, West Sumatra, Jambi and South Sumatra encompassing 840 kms of the “Jalan Lintas Sumatra” highway) based on Rockfall Hazard Rating Systems (RHRS) method; (ii) developing alternatives to stabilize slope hazards, and (iii) selecting appropriate slopes stabilization techniques based on both proactive approach and value engineering one. Based on the Rockfall Hazard Rating Systems (RHRS) method, it was identified 109 steep slopes prone to failure within this highway section. Approximately, 15 slopes were identified as potential high-risk slopes (RHRS scores were calculated >200 points). Based on the proactive approach, seven riskiest slopes ware identified. The preferred stabilization alternatives to remedy most of these slopes are suggested as follow; either (i) a combination of retaining wall and drainage, or (ii) gabion structure and drainage. However, different approaches may yield different results, there are at least 2 main consideration in prioritizing slope stabilization; (i) based on the riskiest slopes, and(ii) the least expensive stabilization alternatives.

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Cut slope design for the access to an underground copper mine

10.37099/mtu.dc.etd-restricted/8 ◽

2011 ◽

Author(s):

Michael D. Hochscheidt

Keyword(s):

Cut Slope ◽

Copper Mine ◽

Slope Design

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Novel phase-corrected horn antenna of short length

Electronics Letters ◽

10.1049/el:19880197 ◽

1988 ◽

Vol 24 (5) ◽

pp. 292

Author(s):

O.W. Ata ◽

T.M. Benson

Keyword(s):

Horn Antenna ◽

Short Length

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A Case Study of a Large Unstable Mass Stabilization: “El Portalet” Pass at the Central Spanish Pyrenees

Applied Sciences ◽

10.3390/app11167176 ◽

2021 ◽

Vol 11 (16) ◽

pp. 7176

Author(s):

Guillermo Cobos ◽

Miguel Ángel Eguibar ◽

Francisco Javier Torrijo ◽

Julio Garzón-Roca

Keyword(s):

Water Table ◽

Critical Factor ◽

Slope Stabilization ◽

Survey Techniques ◽

Geotechnical Investigations ◽

Spanish Pyrenees ◽

Parking Lot ◽

Unstable Slope ◽

Total Stability

This case study presents the engineering approach conducted for stabilizing a landslide that occurred at “El Portalet” Pass in the Central Spanish Pyrenees activated due to the construction of a parking lot. Unlike common slope stabilization cases, measures projected here were aimed at slowing and controlling the landslide, and not completely stopping the movement. This decision was taken due to the slow movement of the landslide and the large unstable mass involved. The degree of success of the stabilization measures was assessed by stability analyses and data obtained from different geotechnical investigations and satellite survey techniques such as GB-SAR and DinSAR conducted by different authors in the area under study. The water table was found to be a critical factor in the landslide’s stability, and the tendency of the unstable slope for null movement (total stability) was related to the water table lowering process, which needs more than 10 years to occur due to regional and climatic issues. Results showed a good performance of the stabilization measures to control the landslide, demonstrating the effectiveness of the approach followed, and which became an example of a good response to the classical engineering duality cost–safety.

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Association of Emergency Department Waiting Times With Patient Experience in Admitted and Discharged Patients

Journal of Patient Experience ◽

10.1177/23743735211011404 ◽

2021 ◽

Vol 8 ◽

pp. 237437352110114

Author(s):

Andrew Nyce ◽

Snehal Gandhi ◽

Brian Freeze ◽

Joshua Bosire ◽

Terry Ricca ◽

...

Keyword(s):

Emergency Department ◽

Length Of Stay ◽

Patient Experience ◽

Waiting Times ◽

Hospital Length ◽

Short Length ◽

Hospital Length Of Stay ◽

Patient’S Experience ◽

Discharged Patients ◽

The Impact

Prolonged waiting times are associated with worse patient experience in patients discharged from the emergency department (ED). However, it is unclear which component of the waiting times is most impactful to the patient experience and the impact on hospitalized patients. We performed a retrospective analysis of ED patients between July 2018 and March 30, 2020. In all, 3278 patients were included: 1477 patients were discharged from the ED, and 1680 were admitted. Discharged patients had a longer door-to-first provider and door-to-doctor time, but a shorter doctor-to-disposition, disposition-to-departure, and total ED time when compared to admitted patients. Some, but not all, components of waiting times were significantly higher in patients with suboptimal experience (<100th percentile). Prolonged door-to-doctor time was significantly associated with worse patient experience in discharged patients and in patients with hospital length of stay ≤4 days. Prolonged ED waiting times were significantly associated with worse patient experience in patients who were discharged from the ED and in inpatients with short length of stay. Door-to-doctor time seems to have the highest impact on the patient’s experience of these 2 groups.

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