{ "id": 6, "title": "test 7-10-6", "summary": "A geotechnical exploration was conducted for the Proposed Dollar General located at US Highway 75 and West Pleasant Avenue in Warren, Minnesota. The investigation involved the advancement of nine soil test borings to depths ranging from approximately 11 to 21 feet below existing site grades. The subsurface profile revealed the presence of uncontrolled fill and organic topsoil extending to depths of 1 to 3 feet, underlain by lean and fat clays, which exhibited varying consistencies from very soft to stiff. Groundwater was not observed during drilling, but it is estimated to be between 10 and 12 feet below the surface, with potential for seepage in open excavations. The fat clays encountered are prone to volumetric changes with moisture fluctuations, necessitating careful management during construction to avoid disturbance.\n\nFor the foundation design, shallow spread footings are recommended, with a net allowable bearing pressure of 1,500 psf for columns and 1,200 psf for walls, requiring a minimum embedment of 60 inches for frost protection. It is crucial to excavate and replace the existing fill and topsoil with controlled engineered fill to ensure adequate support. Construction considerations include maintaining moisture content in the subgrade, avoiding disturbance from construction traffic, and implementing proper drainage to prevent water accumulation. Overall, the site is deemed suitable for the proposed development, provided that the outlined recommendations are followed, and Terracon is retained for monitoring during construction activities.", "sections": [ { "section_type": "Executive Summary", "start_page": 5, "end_page": 5, "description": "Overview of geotechnical exploration and key findings." }, { "section_type": "Introduction", "start_page": 6, "end_page": 6, "description": "Purpose and scope of the geotechnical engineering services." }, { "section_type": "Project Information", "start_page": 6, "end_page": 7, "description": "Details about the project description and site location." }, { "section_type": "Subsurface Conditions", "start_page": 7, "end_page": 8, "description": "Description of subsurface soil profiles and groundwater conditions." }, { "section_type": "Recommendations for Design and Construction", "start_page": 8, "end_page": 19, "description": "Geotechnical recommendations for earthwork, foundations, floor slabs, and pavements." }, { "section_type": "General Comments", "start_page": 19, "end_page": 20, "description": "Final comments and recommendations for monitoring and safety." }, { "section_type": "Appendix A - Field Exploration", "start_page": 20, "end_page": 24, "description": "Details of field exploration methods and boring logs." }, { "section_type": "Appendix B - Supporting Information", "start_page": 24, "end_page": 24, "description": "Laboratory testing data and results." }, { "section_type": "Appendix C - Supporting Documents", "start_page": 24, "end_page": 24, "description": "General notes and soil classification system." } ], "boring_log_pages": [], "key_fields": { "fill_depth_range": { "min": 1.0, "max": 3.0, "unit": "feet", "reasoning": "Found in Executive Summary: existing uncontrolled fill and organic topsoil encountered to depths ranging from 1 to 3 feet.", "page_number": 5 }, "bearing_stratum": { "description": "Natural, undisturbed inorganic soils or engineered fill", "depth_range": { "min": 3.0, "max": 21.0, "unit": "feet" }, "reasoning": "Identified in Recommendations section: building can be supported on shallow spread foundations bearing on natural soils or engineered fill after removal of existing fill.", "page_number": 8 }, "groundwater_depth": { "depth": 10.0, "unit": "feet", "note": "Estimated groundwater level based on sample moisture conditions.", "reasoning": "Found in Executive Summary: groundwater level estimated to be between 10 and 12 feet below existing ground surface.", "page_number": 5 }, "recommended_bearing_capacity": { "value": 1500, "unit": "psf", "foundation_type": "shallow", "reasoning": "Stated in Foundation Recommendations: net allowable bearing pressure for columns is 1,500 psf.", "page_number": 12 }, "settlement_limits": { "total_settlement": { "value": 1.0, "unit": "inches", "reasoning": "Total settlement for columns is estimated to be less than 1 inch.", "page_number": 12 }, "differential_settlement": { "value": 0.75, "unit": "inches", "reasoning": "Differential settlement for columns is estimated to be less than \u00be inch over 40 feet.", "page_number": 12 } }, "pile_load_capacity": { "pile_type": null, "allowable_load_capacity": { "compression": { "value": null, "unit": "kips", "reasoning": "No deep foundations recommended in the report.", "page_number": null }, "tension": { "value": null, "unit": "kips", "reasoning": "No deep foundations recommended in the report.", "page_number": null } }, "notes": null, "page_number": null }, "project_info": { "project_name": "Proposed Dollar General", "location": "US Highway 75 and West Pleasant Avenue, Warren, Minnesota", "report_date": "June 9, 2014", "page_number": 1 }, "earthwork": { "compaction_requirement": "95% Standard Proctor", "moisture_range": "+/- 2% of optimum", "subgrade_preparation": "Scarified to a depth of 12 inches and recompacted to a minimum of 98 percent of the maximum dry density.", "page_number": 10 }, "chain_of_thought": "Step 1: Searched for fill depth... Step 2: Found fill depth range in Executive Summary... Step 3: Verified fill depth range is 1 to 3 feet... Step 4: Extracted values accordingly." }, "boring_logs": [], "image_analysis": {}, "metadata": { "total_pages": 40, "boring_log_pages": [], "boring_logs_extraction_method": "skipped", "image_error": null, "cached_images": null }, "created_at": "2026-07-10T06:02:53.083495+00:00", "processed": true }