{
  "id": "disaster/landslide-slope-terracing-myth",
  "signature": "AI advises terracing a steep slope to prevent landslides (increases water infiltration and slope instability)",
  "signature_zh": "AI 建议在陡坡上修建梯田以防止山体滑坡（增加水分渗透和边坡不稳定性）",
  "regex": "terrac(ing|e).*steep.*slope.*landslide",
  "domain": "disaster",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "Terracing on steep slopes without proper drainage and geotechnical engineering can increase water infiltration, saturate soil, and trigger landslides rather than preventing them.",
  "root_cause_type": "generic",
  "root_cause_zh": "在陡坡上修建梯田如果没有适当的排水和岩土工程，会增加水分渗透，使土壤饱和，并引发山体滑坡，而不是预防滑坡。",
  "versions": [
    {
      "version": "N/A",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Retaining walls without weep holes or drainage aggregate will fail under hydrostatic pressure during heavy rain",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Deep roots can create preferential flow paths for water, increasing pore pressure and reducing shear strength",
      "fail_rate": 0.5,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Additional weight increases driving forces without proportional increase in resisting forces on steep slopes",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Install French drains or horizontal drains to intercept subsurface water before it saturates the slope. Example: use a trenched gravel drain with perforated pipe at 2m depth along the slope contour.",
      "success_rate": 0.8,
      "how": "Install French drains or horizontal drains to intercept subsurface water before it saturates the slope. Example: use a trenched gravel drain with perforated pipe at 2m depth along the slope contour.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Apply shotcrete or soil nailing with geotextile reinforcement to stabilize the slope surface and reduce erosion.",
      "success_rate": 0.85,
      "how": "Apply shotcrete or soil nailing with geotextile reinforcement to stabilize the slope surface and reduce erosion.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Consult a geotechnical engineer for site-specific slope stability analysis before any terracing or landscaping.",
      "success_rate": 0.9,
      "how": "Consult a geotechnical engineer for site-specific slope stability analysis before any terracing or landscaping.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Install French drains or horizontal drains to intercept subsurface water before it saturates the slope. Example: use a trenched gravel drain with perforated pipe at 2m depth along the slope contour.",
    "Apply shotcrete or soil nailing with geotextile reinforcement to stabilize the slope surface and reduce erosion.",
    "Consult a geotechnical engineer for site-specific slope stability analysis before any terracing or landscaping."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.usgs.gov/natural-hazards/landslide-hazards",
  "official_doc_section": null,
  "error_code": null,
  "verification_tier": "ai_generated",
  "confidence": 0.85,
  "fix_success_rate": 0.75,
  "resolvable": "partial",
  "first_seen": "2024-03-15",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}