伊宁至阿克苏铁路那拉提山越岭段关键性工程地质问题遥感解译与分析

陈富强

doi:10.19509/j.cnki.dzkq.tb20210646

伊宁至阿克苏铁路那拉提山越岭段关键性工程地质问题遥感解译与分析

doi: 10.19509/j.cnki.dzkq.tb20210646

陈富强

中铁第一勘察设计院集团有限公司, 西安 710043

基金项目:

中铁第一勘察设计院集团有限公司重点专项研发项目 2021KY73ZD(ZDZX)-1

详细信息

作者简介:
陈富强(1989—), 男, 工程师, 主要从事遥感技术应用研究工作。E-mail: cfq531992@126.com

中图分类号: P642
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- 被引次数: 0
出版历程
- 收稿日期: 2021-10-26

Remote sensing interpretation and analysis of key engineering geological problems in the Nalati Mountain crossing section of the Yining-Aksu Railway

Chen Fuqiang

China Railway First Survey and Design Institute Group Co. Ltd., Xi'an 710043, China

摘要

摘要:
伊宁至阿克苏铁路由北至南需2次翻越天山, 北侧那拉提山越岭段自然气候恶劣、地质环境复杂, 线路方案的设计、选择明显受地质条件的约束, 前期选线勘测需要彻底摸清区内各类地质问题。在分析区域地质构造背景的基础上, 采用高分二号、Landsat8卫星影像和航空高分辨率影像等多源数据, 对区内存在的恰普河中游及巩乃斯镇东滑坡群、近EW-NEE向地震活动断裂带、巩乃斯河上游危岩落石区等关键地质问题开展了详细的解译分析, 结合现场调查, 对其发育位置、规模、形态、稳定性等进行了评价, 为外业工程地质勘察、线路方案比选提供了可靠的基础资料, 充分发挥了遥感技术在复杂山区铁路勘察中的指导作用。
- 遥感技术 /
- 伊阿铁路 /
- 滑坡 /
- 活动断裂 /
- 危岩落石
Abstract:
The Yining-Aksu Railway needs to cross the Tianshan Mountains twice from north to south. The natural climate and geological environment are harsh and complex at the crossing section of Nalati Mountain on the north side. The design and selection of the route scheme are obviously constrained by geological conditions, and the preliminary route selection survey requires to thoroughly determine all kinds of geological problems in the area. In this study, multisource data(e.g., Gaofen-2 images, Landsat 8 satellite images, and aerial high-resolution images) were used to perform detailed interpretation and analysis of the Nalati mountain crossing section, showing that there are densely developed landslide deformation areas along both banks of the Qiapu River, and the landslide groups on the left bank of the Qiapu River significantly impact the route scheme. The EW-NEE trending seismic-active fault zones in the area are mainly developed in the Meso-Cenozoic soft strata, with the southern margin of the Nalati fault and the Qiapu River fault as the typical ones, all of which have the phenomenon of local 're-movement'; the rockfall hazard regions in the upper reaches of the Gongnai River is mainly distributed in the intersection area of Highway G217 and G218 and its east areas, mainly in the sunny slope area.The results provide reliable basic data for field engineering geological surveys and route scheme comparisons, verifying the guiding function of the remote sensing in railway surveys in complex mountainous areas.
- remote sensing /
- Yining-Aksu Railway /
- landslide /
- active fault /
- unstable rock

HTML全文

图 1 伊阿铁路那拉提山越岭段方案示意图

Figure 1. Schematic diagram of the Nalati Mountain crossing section of the Yining-Aksu Railway

下载: 全尺寸图片幻灯片

图 2 那拉提越岭段断裂构造分布图

F₁.阿吾拉勒山北缘断裂; F₂.巩乃斯北缘断裂; F₃.巩乃斯南缘断裂; F₄.恰普河断裂; F₅.那拉提北缘断裂; F₆.那拉提南缘断裂

Figure 2. Distribution of fault structures in the Nalati Mountains

下载: 全尺寸图片幻灯片

图 3 技术路线图

Figure 3. Technology roadmap

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图 4 恰普河滑坡群影像及照片

a.GF-2影像；b.大场景立体影像；c.无人机拍摄照片

Figure 4. Images and photos of the Qiapu River landslide group

下载: 全尺寸图片幻灯片

图 5 巩乃斯镇东部滑坡Gaofen-2遥感影像(上)及现场照片(下)

Figure 5. Gaofen-2 remote sensing images (upper)and photos (lower) of landslide in the east of Gongnaisi Town

下载: 全尺寸图片幻灯片

图 6 巩乃斯南缘断裂F₃与恰普河断裂F₄ OLI遥感影像

Figure 6. Remote sensing images of the southern margin of Gongnai fault F₃ and the Qiapu River fault F₄

下载: 全尺寸图片幻灯片

图 7 巩乃斯南缘断裂(a)与恰普河断裂(b)现场照片

Figure 7. Photographs of the southern margin of the Gongnai fault (a) and the Qiapu River fault (b)

下载: 全尺寸图片幻灯片

图 8 那拉提北缘断裂F₅影像

Figure 8. Image of the northern margin of Nalati fault F₅

下载: 全尺寸图片幻灯片

图 9 那拉提南缘断裂带影像及照片

Figure 9. Images and photos of the southern margin of the Nalati fault zone

下载: 全尺寸图片幻灯片

图 10 G218北侧危岩落石影像照片

Figure 10. Image photos of rockfall from dangerous rock on the north side of G218

下载: 全尺寸图片幻灯片

表 1 遥感数据一览

Table 1. Summary of remote sensing data

类型	分辨率/m	时相	获取方式及特征	用途
GF-2	1.0	2019/08-2020/06	覆盖全、时相多、性价比高，影像纹理清晰、色彩较单一	地层岩性、断裂构造等解译识别
OLI	15.0	2020/08	存储量多，免费获取，影像色彩丰富、分辨率中等	地层岩性、断裂构造等解译识别
ALOS PALSAR	12.5	2010/06	DEM数据覆盖全、免费获取	制作地貌图、坡度图，快速识别大范围区域内危岩落石区，效果较好
高空航摄数据	0.1~0.2	2021/02-05	载人固定翼平台(PC-6)搭载DMCII-230数码航摄仪，航高4~6 km高空获取	制作三维真实感大场景立体影像模型，对于滑坡、泥石流、危岩落石等解译分析效果好
低空航摄数据	3~5 cm	2021/05-08	大疆Mavic 2、经纬M300无人机，航高100~300 m获取	对于地表宏观观测、精细化边界解译圈定效果好

下载: 导出CSV

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