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https://hdl.handle.net/11681/42550Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Garcia, Lyan I. | - |
| dc.contributor.author | Rowland, James F. | - |
| dc.contributor.author | Tingle, Jeb S. | - |
| dc.date.accessioned | 2021-12-09T17:23:26Z | - |
| dc.date.available | 2021-12-09T17:23:26Z | - |
| dc.date.issued | 2021-12 | - |
| dc.identifier.govdoc | ERDC/GSL TR-21-41 | - |
| dc.identifier.uri | https://hdl.handle.net/11681/42550 | - |
| dc.identifier.uri | http://dx.doi.org/10.21079/11681/42550 | - |
| dc.description | Technical Report | en_US |
| dc.description.abstract | After an airfield has been attacked, temporary airfield pavement repairs should be accomplished quickly to restore flight operations. Often, the repairs are made with inadequate materials and insufficient manpower due to limited available resources. Legacy airfield damage repair (ADR) methods for repairing bomb damage consist of using bomb damage debris to fill the crater, followed by placement of crushed stone or rapid-setting flowable fill backfill with a foreign object debris (FOD) cover. While these backfill methods have provided successful results, they are heavily dependent on specific material and equipment resources that are not always readily available. Under emergency conditions, it is desirable to reduce the logistical burden while providing a suitable repair, especially in areas with weak subgrades. Geocells are cellular confinement systems of interconnected cells that can be used to reinforce geotechnical materials. The primary benefit of geocells is that lower quality backfill materials can be used instead of crushed stone to provide a temporary repair. This report summarizes a series of laboratory and field experiments performed to evaluate different geocell materials and geometries in combinations with a variety of soils to verify their effectiveness at supporting heavy aircraft loads. Results provide specific recommendations for using geocell technology for backfill reinforcement for emergency airfield repairs. | en_US |
| dc.description.sponsorship | Air Force Civil Engineering Center (U.S.) | en_US |
| dc.description.tableofcontents | Abstract .................................................................................................................................... ii Figures and Tables ................................................................................................................... v Preface .................................................................................................................................... vii 1 Introduction ...................................................................................................................... 1 1.1 Airfield damage repair ....................................................................................... 1 1.2 RADR modernization program .......................................................................... 1 1.3 Geocells for RADR .............................................................................................. 2 1.4 Objectives and approach .................................................................................. 5 2 Test Plan and Layout ........................................................................................................ 6 3 Laboratory Testing of Geocells ..................................................................................... 12 3.1 Description of geocell products ..................................................................... 12 3.1.1 Presto – Geoweb ....................................................................................................... 14 3.1.2 PRS Geo-technologies – Neoweb ............................................................................. 15 3.1.3 Geo Products – EnviroGrid ....................................................................................... 15 3.1.4 Typar - GeoCell GS ..................................................................................................... 16 3.2 Laboratory testing program ............................................................................. 17 3.3 Laboratory testing results .............................................................................. 20 4 Materials and Equipment .............................................................................................. 24 4.1 Soils .................................................................................................................. 24 4.2 Geotextile ........................................................................................................ 26 4.3 Construction tools and equipment ................................................................ 26 4.4 Fiberglass-Reinforced Polymer (FRP) FOD cover system ............................. 28 5 Full-Scale Testing ........................................................................................................... 29 5.1 Preparation of simulated craters ................................................................... 29 5.2 Preparation of geotextile and geocell materials ........................................... 30 5.3 Construction of geocell-reinforced backfill.................................................... 32 5.4 Repair capping ................................................................................................ 36 5.5 Construction data collection and results ...................................................... 38 5.6 Trafficking and data collection....................................................................... 46 5.7 Failure criteria ................................................................................................. 48 6 Results and Discussion ................................................................................................. 49 6.1 Phase 1 repairs .............................................................................................. 49 6.2 Phase 2 repairs .............................................................................................. 50 6.3 Phase 3 repairs .............................................................................................. 52 6.4 Phase 4 repairs .............................................................................................. 53 6.5 Phase 5 repairs .............................................................................................. 54 7 Conclusions and Recommendations ........................................................................... 56 References ............................................................................................................................. 58 Appendix A ............................................................................................................................. 61 Appendix B ............................................................................................................................. 65 Acronyms and Abbreviations ............................................................................................... 69 Report Documentation Page | - |
| dc.format.extent | 82 pages / 13.73 MB | - |
| dc.format.medium | - | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Geotechnical and Structures Laboratory (U.S.) | en_US |
| dc.publisher | Engineer Research and Development Center (U.S.) | - |
| dc.relation.ispartofseries | Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/GSL TR-21-41 | - |
| dc.rights | Approved for Public Release; Distribution is Unlimited | - |
| dc.source | This Digital Resource was created in Microsoft Word and Adobe Acrobat | - |
| dc.subject | Sand grid | en_US |
| dc.subject | Geocells | en_US |
| dc.subject | Military bases | en_US |
| dc.subject | Airfield damage repair | en_US |
| dc.subject | Soil reinforcement | en_US |
| dc.subject | Geosynthetics | en_US |
| dc.subject | Geogrids | en_US |
| dc.subject | Runways (Aeronautics)--Maintenance and repair | en_US |
| dc.subject | Controlled low-strength materials | en_US |
| dc.subject | Fills (Earthwork) | en_US |
| dc.title | Evaluation of geocell-reinforced backfill for airfield pavement repair | en_US |
| dc.type | Report | en_US |
| Appears in Collections: | Technical Report | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ERDC-GSL TR-21-41.pdf | 13.73 MB | Adobe PDF |  View/Open |