Tropical Geography ›› 2023, Vol. 43 ›› Issue (1): 88-102.doi: 10.13284/j.cnki.rddl.003612
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Ping Wang(), Xianneng Wang(
), Anfeng Lai
Received:
2022-07-23
Revised:
2022-09-24
Online:
2023-01-05
Published:
2023-02-03
Contact:
Xianneng Wang
E-mail:368210284@qq.com;1735150767@qq.com
CLC Number:
Ping Wang, Xianneng Wang, Anfeng Lai. Characteristics and Causal Mechanism of Topsoil Slip in Ductile Shear Zone of the Shanwei Section of the Lianhuashan Fault Zone[J].Tropical Geography, 2023, 43(1): 88-102.
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Table 2
Comparison between compressive strength of rock in Houmen Ductile shear zone and original rock
地层岩性 | 地点 | 部位 | 岩性 | 饱和抗压强度/MPa | 变形后岩石强度与原岩的比值 |
---|---|---|---|---|---|
J2+3r 凝灰岩 | 太平岭核电站一期工程边坡 | 原岩带 | 中风化凝灰岩 | 46.1 | — |
微风化凝灰岩 | 119.2 | — | |||
鲘门民新村三堆石1#边坡 | 鲘门韧性剪切带 | 中风化千糜岩 | 16.2 | 0.35 | |
微风化千糜岩 | 38.4 | 0.32 | |||
2#边坡 | 鲘门韧性剪切带 | 微风化千糜岩 | 36.4 | 0.31 | |
J1js 泥质岩 | 河海大道(小漠狮山) | 原岩带 | 中风化泥质岩 | 17.7 | — |
微风化泥质岩 | 39.6 | — | |||
通港大道(小漠云新村) | 鲘门韧性剪切带 | 中风化构造片岩 | 6.7 | 0.38 | |
微风化构造片岩 | 23.5 | 0.59 | |||
红海大道(小漠虎坑尾山) | 鲘门韧性剪切带 | 中风化千糜岩 | 15.2 | 0.86 | |
微风化千糜岩 | 29.2 | 0.74 |
Table 5
Results of information quantity model in Ductile shear zone of SSCZ
影响 因素 | 条件 | 分类号 | 滑塌 个数 | 滑塌 总数 | 栅格 数量 | 栅格 总数 | 信息量值 |
---|---|---|---|---|---|---|---|
变形 程度 | 强烈 | 1 | 995 | 1 614 | 394 399 | 1 270 773 | 0.69 |
中等 | 2 | 568 | 1 614 | 699 692 | 1 270 773 | -0.45 | |
弱 | 3 | 51 | 1 614 | 176 682 | 1 270 773 | -1.48 | |
滑塌 距断 层的 距离/m | 0~50 | 1 | 282 | 1 614 | 156 204 | 1 266 952 | 0.35 |
50~200 | 2 | 801 | 1 614 | 402 966 | 1 266 952 | 0.44 | |
200~500 | 3 | 428 | 1 614 | 439 657 | 1 266 952 | -0.27 | |
500~1 000 | 4 | 91 | 1 614 | 235 015 | 1 266 952 | -1.19 | |
>1 000 | 5 | 12 | 1 614 | 33 110 | 1 266 952 | -1.26 | |
地貌 单元 | 低山 | 1 | 127 | 1 614 | 252 923 | 1 266 952 | -0.93 |
高丘陵 | 2 | 1127 | 1 614 | 457 124 | 1 266 952 | 0.66 | |
低丘陵 | 3 | 341 | 1 614 | 147 944 | 1 266 952 | 0.59 | |
台地 | 4 | 19 | 1 614 | 139 383 | 1 266 952 | -2.23 | |
坡度/(°) | 0~15 | 1 | 33 | 1 614 | 489 227 | 1 265 411 | -2.94 |
≥15~25 | 2 | 136 | 1 614 | 247 965 | 1 265 411 | -0.84 | |
≥25~35 | 3 | 430 | 1 614 | 279 060 | 1 265 411 | 0.19 | |
≥35~45 | 4 | 778 | 1 614 | 204 945 | 1 265 411 | 1.09 | |
≥45 | 5 | 237 | 1 614 | 44 214 | 1 265 411 | 1.44 | |
坡向 | 北 | 1 | 52 | 1 614 | 108 574 | 1 143 893 | -1.08 |
北东 | 2 | 133 | 1 614 | 118 412 | 1 143 893 | -0.23 | |
东 | 3 | 334 | 1 614 | 150 002 | 1 143 893 | 0.46 | |
南东 | 4 | 367 | 1 614 | 188 253 | 1 143 893 | 0.32 | |
南 | 5 | 333 | 1 614 | 186 995 | 1 143 893 | 0.23 | |
南西 | 6 | 219 | 1 614 | 156 972 | 1 143 893 | -0.01 | |
西 | 7 | 116 | 1 614 | 123 087 | 1 143 893 | -0.40 | |
北西 | 8 | 60 | 1 614 | 111 598 | 1 143 893 | -0.96 | |
原岩 工程 地质 岩组 | B1 | 2 | 203 | 1 614 | 185 769 | 1 266 891 | -0.15 |
B2 | 3 | 939 | 1 614 | 205 837 | 1 266 891 | 1.28 | |
B3 | 4 | 7 | 1 614 | 9 734 | 1 266 891 | -0.57 | |
C | 5 | 2 | 1 614 | 32 239 | 1 266 891 | -3.02 | |
D1 | 6 | 233 | 1 614 | 339 563 | 1 266 891 | -0.62 | |
D2 | 7 | 227 | 1 614 | 128 397 | 1 266 891 | 0.33 | |
斜坡 结构 类型 | 顺向坡 | 1 | 548 | 1 614 | 190 785 | 1 012 834 | 0.59 |
斜向坡 | 2 | 544 | 1 614 | 263 208 | 1 012 834 | 0.26 | |
横向坡 | 3 | 385 | 1 614 | 296 147 | 1 012 834 | -0.20 | |
逆向坡 | 4 | 132 | 1 614 | 225 706 | 1 012 834 | -1.00 | |
块状岩坡 | 5 | 5 | 1 614 | 36 988 | 1 012 834 | -2.47 |
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[1] | Ping Wang, Xianneng Wang, Anfeng Lai. Characteristics and Causal Mechanism of Topsoil Slip in Ductile Shear Zone of the Shanwei Section of the Lianhuashan Fault Zone [J]. Tropical Geography, 2023, (): 1-15. |
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