diff --git a/E03_StabSection/E03_StabSection_Engine_LEM.py b/E03_StabSection/E03_StabSection_Engine_LEM.py
index 79e755295..b3b05c057 100644
--- a/E03_StabSection/E03_StabSection_Engine_LEM.py
+++ b/E03_StabSection/E03_StabSection_Engine_LEM.py
@@ -28,6 +28,7 @@ TOL = 1e-6
 #: Janbu 보정 f0 식의 d/L 상한(지식DB 02 §2.3)
 JANBU_DL_MAX = 0.35
 MAX_ITER = 100
+WALL_ID = "wall"  # Engine_Model.WALL_MATERIAL id
 
 
 class Prepared:
@@ -44,6 +45,8 @@ class Prepared:
         self.gamma_sat = np.array([m["gamma_sat"] for m in mats] + [0.0])
         self.c = np.array([m["c"] for m in mats] + [np.nan])
         self.tanphi = np.array([np.tan(np.radians(m["phi"])) for m in mats] + [np.nan])
+        # 벽(옹벽 · 석축) — 바닥이 벽 안을 지나는 활동면은 버림(벽 밑 · 뒤로 돌아가는 면만 후보)
+        self.blocked = np.array([m["id"] == WALL_ID for m in mats] + [False])
         polys = []
         for region in model["regions"]:
             rings = [region["polygon"], *region.get("holes", [])]
@@ -209,6 +212,7 @@ def slices(prep: Prepared, xe: np.ndarray, ze: np.ndarray) -> dict:
     xw = np.where(W > 0, (Ws * xm + Mq) / np.maximum(W, _TINY), xm)
     valid = np.all(found & (zb >= prep.bottom_z - 1e-6) & np.isfinite(zt), axis=1)
     valid &= np.all(b > 0, axis=1)
+    valid &= ~np.any(prep.blocked[base_mat] & found, axis=1)
     return {
         "xe": xe,
         "ze": ze,
diff --git a/E03_StabSection/E03_StabSection_Types.py b/E03_StabSection/E03_StabSection_Types.py
index adfa50720..e4763828c 100644
--- a/E03_StabSection/E03_StabSection_Types.py
+++ b/E03_StabSection/E03_StabSection_Types.py
@@ -4,6 +4,8 @@
 E04 가 이 파일을 그대로 import — 이름 · 열쇠를 바꾸지 않음.
 """
 
+import json
+from pathlib import Path
 from typing import Literal, TypedDict
 
 GAMMA_W = 9.81  # 물 단위중량 kN/m³
@@ -30,54 +32,6 @@ class Surcharge(TypedDict):
     q: float  # 연직 등분포 kPa
 
 
-# 요구서 345 6장 기본값(사용자가 E02 에서 바꿈) — 사전조사 후보의 보수 쪽.
-DEFAULT_MATERIALS: list[Material] = [
-    {
-        "id": "weathered_soil",
-        "name": "풍화토",
-        "gamma_t": 18.0,
-        "gamma_sat": 19.0,
-        "c": 15.0,
-        "phi": 30.0,
-    },
-    {
-        "id": "weathered_rock",
-        "name": "풍화암",
-        "gamma_t": 20.0,
-        "gamma_sat": 21.0,
-        "c": 30.0,
-        "phi": 33.0,
-    },
-    {
-        "id": "soft_rock",
-        "name": "연암",
-        "gamma_t": 24.0,
-        "gamma_sat": 24.5,
-        "c": 150.0,
-        "phi": 35.0,
-    },
-    {
-        "id": "hard_rock",
-        "name": "경암",
-        "gamma_t": 26.0,
-        "gamma_sat": 26.0,
-        "c": 300.0,
-        "phi": 40.0,
-    },
-    {"id": "fill", "name": "성토", "gamma_t": 18.0, "gamma_sat": 19.0, "c": 10.0, "phi": 25.0},
-    {
-        "id": "colluvium",
-        "name": "붕적토",
-        "gamma_t": 17.5,
-        "gamma_sat": 18.5,
-        "c": 5.0,
-        "phi": 27.0,
-    },
-]
-
-DEFAULT_ROAD_SURCHARGE_KPA = 10.0  # 노면 하중 기본
-
-
 def material(raw: dict) -> Material:
     """밖에서 온 물성 한 줄을 꼴에 맞춤 — 빠진 γsat 는 γt · 음수 · 범위 밖은 오류."""
     gamma_t = float(raw["gamma_t"])
@@ -122,3 +76,14 @@ def surcharges(raw: list[dict] | None) -> list[Surcharge]:
         if x1 > x0:
             out.append({"x0": x0, "x1": x1, "q": float(item["q"])})
     return out
+
+
+# 기본 물성 · 노면 하중 = M02 마스터 층 `ground_defaults.json`(E02 초기값과 한 벌 · 사용자가 E02 에서 바꿈).
+_DEFAULTS = json.loads(
+    (
+        Path(__file__).resolve().parents[1]
+        / "resources/master_template/stability/ground_defaults.json"
+    ).read_text(encoding="utf-8")
+)
+DEFAULT_MATERIALS: list[Material] = [material(m) for m in _DEFAULTS["materials"]]
+DEFAULT_ROAD_SURCHARGE_KPA = float(_DEFAULTS["road_surcharge_kpa"])  # 노면 하중 기본
diff --git a/E06_StabRock/E06_StabRock_Model.py b/E06_StabRock/E06_StabRock_Model.py
index 2cfe7d1ae..95e57df69 100644
--- a/E06_StabRock/E06_StabRock_Model.py
+++ b/E06_StabRock/E06_StabRock_Model.py
@@ -40,7 +40,7 @@ DEFAULT_SETTINGS: dict[str, Any] = {
     "lateral_planar_deg": engine.LATERAL_PLANAR_DEG,
     "lateral_toppling_deg": engine.LATERAL_TOPPLING_DEG,
     "gamma_r": None,  # None = E02 측점 암 물성 γt
-    "water_fill_wet": 0.5,  # 우기 수위 = 비탈 높이 ½(KDS 11 70 05 표 4.3-3 암반)
+    "water_fill_wet": 0.5,  # 우기 = 균열 깊이 · 활동면 높이 ½(KDS 11 70 05 표 4.3-3 암반)
     "crack": {"mode": "none", "z": None},
     "bolt": {"force": 0.0, "plunge": 15.0},
 }
diff --git a/resources/tester/test_532_4_stab_walls_water.py b/resources/tester/test_532_4_stab_walls_water.py
index 86bb68eb5..c15bd00f6 100644
--- a/resources/tester/test_532_4_stab_walls_water.py
+++ b/resources/tester/test_532_4_stab_walls_water.py
@@ -30,7 +30,7 @@ from E02_StabGround import E02_StabGround_Model as ground_model  # noqa: E402
 from E02_StabGround import E02_StabGround_Router as router  # noqa: E402
 from E03_StabSection import E03_StabSection_Types as types  # noqa: E402
 from E03_StabSection.E03_StabSection_Engine_Model import section_model_from_b06  # noqa: E402
-from E03_StabSection.E03_StabSection_Engine_Search import analyze  # noqa: E402
+from E03_StabSection.E03_StabSection_Engine_Search import analyze, evaluate_specified  # noqa: E402
 from E03_StabSection.E03_StabSection_Engine_Station import analyze_station  # noqa: E402
 from E03_StabSection.E03_StabSection_Walls import (  # noqa: E402
     design_with_walls,
@@ -122,6 +122,19 @@ def test_임계면이_벽을_안_지남(found):
             assert a["min_F"]["bishop"] != pytest.approx(b["min_F"]["bishop"], abs=1e-3)
 
 
+def test_벽을_지나는_면은_버림(found):
+    entry = found["100.00"]
+    model = section_model_from_b06(CROSS, design_with_walls(DESIGN, entry), walls=walls_of(entry))
+    side = next(s for s in model["sides"] if s["role"] == "fill")
+    through = [[-0.5, 10.0], [2.0, 8.5], [6.0, 6.4]]  # 벽(x 1.4~3.2 · z 7~10) 한가운데
+    under = [[-0.5, 10.0], [2.0, 6.0], [8.0, 5.2]]  # 벽 바닥 아래
+    for line, ok in ((through, False), (under, True)):
+        got = evaluate_specified(
+            model, polyline=line, direction=side["direction"], methods=("janbu", "spencer")
+        )
+        assert all((got[m]["F"] is not None) == ok for m in got)
+
+
 def test_벽_없는_측점_모형_그대로():
     assert design_with_walls(DESIGN, None) is DESIGN and walls_of(None) is None
     a = section_model_from_b06(CROSS, DESIGN)
diff --git a/resources/tester/test_536_1_e06_rock.py b/resources/tester/test_536_1_e06_rock.py
index 35fe8869b..44e91c4fe 100644
--- a/resources/tester/test_536_1_e06_rock.py
+++ b/resources/tester/test_536_1_e06_rock.py
@@ -48,6 +48,25 @@ def test_plane_hoek_tension_crack():
     close(r["crack_b"], 15.3357, 1e-4)  # 마루 뒤 거리(RocPlane 검증 #1)
 
 
+def test_wet_default_kds_half_depth():
+    """KDS 11 70 05 표 4.3-3 암반 우기 = 균열 · 활동면 높이 ½ 심도 포화 · 기준 1.2."""
+    import json
+    from pathlib import Path
+
+    fill = model.DEFAULT_SETTINGS["water_fill_wet"]
+    assert fill == 0.5
+    z = 10.0
+    r = eng.plane_fs(**SAU_MAU, water_fill=fill, crack={"mode": "depth", "z": z})
+    close(r["V"], 0.5 * 10 * (z / 2) ** 2, 1e-9)  # 균열 안 수위 = z/2
+    dry = eng.plane_fs(**SAU_MAU)  # 균열 없음 = 활동면 오름 60 · 가운데 수두 = (½ · 60)/2
+    close(eng.plane_fs(**SAU_MAU, water_fill=fill)["U"], 0.5 * 10 * 15 * dry["A"], 1e-9)
+    root = Path(__file__).resolve().parents[2]
+    ground = json.loads(
+        (root / "resources/master_template/stability/ground_defaults.json").read_text("utf-8")
+    )
+    assert ground["safety_factors"]["wet"]["cut"] == 1.2
+
+
 def test_plane_critical_crack_search_matches_hoek():
     """건조 · 윗면 수평 — 수치 탐색 임계 자리 = Hoek-Bray 식 z · b."""
     r = eng.plane_fs(
diff --git a/ui_template/ui_template_locale_e06.ts b/ui_template/ui_template_locale_e06.ts
index e604dca01..8eeed1d8d 100644
--- a/ui_template/ui_template_locale_e06.ts
+++ b/ui_template/ui_template_locale_e06.ts
@@ -36,7 +36,10 @@ export const ui_locales_e06 = {
   E06_Set_LateralPlanar: ["평면 측방 한계 (°)", "Planar lateral limit (°)"],
   E06_Set_LateralTopple: ["전도 측방 한계 (°)", "Toppling lateral limit (°)"],
   E06_Set_Gamma: ["암 단위중량 (kN/m³ · 비우면 E02)", "Rock unit weight (kN/m³, blank = E02)"],
-  E06_Set_WaterWet: ["우기 수위 비 (0~1)", "Wet water ratio (0–1)"],
+  E06_Set_WaterWet: [
+    "우기 수위 비 (0~1 · 균열 · 활동면 높이 대비)",
+    "Wet water ratio (0–1, of crack / sliding-plane height)",
+  ],
   E06_Set_Crack: ["인장균열", "Tension crack"],
   E06_Crack_None: ["없음", "None"],
   E06_Crack_Critical: ["임계(최소 안전율 자리)", "Critical (minimum FS)"],
@@ -45,8 +48,8 @@ export const ui_locales_e06 = {
   E06_Set_BoltForce: ["볼트 힘 (평면 kN/m · 쐐기 kN)", "Bolt force (plane kN/m · wedge kN)"],
   E06_Set_BoltPlunge: ["볼트 경사 (수평 아래 °)", "Bolt plunge (below horizontal °)"],
   E06_SettingsHint: [
-    "측방 한계 기본 20° (Dips 기본 · 지식DB 03 전도는 30°) · 우기 = 비탈 높이 ½ 수위(KDS 11 70 05) · 볼트 = 수동 지지력.",
-    "Lateral limit default 20° (Dips default; knowledge DB uses 30° for toppling) · wet = water at half height (KDS 11 70 05) · bolts = passive support.",
+    "측방 한계 기본 20° (Dips 기본 · 지식DB 03 전도는 30°) · 우기 = 인장균열 깊이 또는 활동면 높이의 ½ 까지 지하수 · 기준 안전율 1.2(KDS 11 70 05 표 4.3-3 암반) · 볼트 = 수동 지지력.",
+    "Lateral limit default 20° (Dips default; knowledge DB uses 30° for toppling) · wet = groundwater to ½ of tension-crack depth or sliding-plane height, required FS 1.2 (KDS 11 70 05 Table 4.3-3, rock) · bolts = passive support.",
   ],
   E06_Analyze: ["해석", "Analyze"],
   E06_Running: ["해석 중…", "Analyzing…"],