Formation mechanism and control scheme of the compound disaster of blown sand and snow drift on the Kete Highway in the Kumtoba Desert in Xinjiang， China

doi:10.7522/j.issn.1000-694X.2022.00032

Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (6): 14-24.DOI: 10.7522/j.issn.1000-694X.2022.00032

Formation mechanism and control scheme of the compound disaster of blown sand and snow drift on the Kete Highway in the Kumtoba Desert in Xinjiang， China

Shengyu Li¹^,²^,³^,⁴^,⁶(), Gang Ding⁷, Shijie Wang¹^,²^,³^,⁵^,⁶, Yazhou Zhao¹^,²^,³^,⁴^,⁶, Xinwen Xu¹^,²^,³^,⁵^,⁶, Tingting Zheng⁸, Xincheng Wu⁹

^1.National Engineering Technology Research Center for Desert-Oasis Ecological Construction /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^2.State Key Laboratory of Desert and Oasis Ecology /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^3.Xinjiang Key Laboratory of Environmental Pollution and Ecological Restoration in Arid Region /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^4.Mosuowan Desert Research Station /, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^5.Taklimakan Desert Research Station, Xinjiang Institute of Ecology and Geography，Chinese Academy of Sciences，Urumqi 830011，China
^6.University of Chinese Academy of Sciences，Beijing 100049，China
^7.Department of Risk Monitoring and Comprehensive Disaster Reduction，Agency of Emergency Management of Xinjiang Uygur Autonomous Region，Urumqi 830011，China
^8.Natural Resources Bureau （Forestry and Grassland Bureau） of Jeminay County，Jeminay 836899，Xinjiang，China
^9.Xinjiang Communications Construction Group Co. LTD，Urumqi 830016，China

Received:2022-03-09 Revised:2022-04-04 Online:2022-11-20 Published:2023-01-09

Abstract

Abstract:

In recent years， with the rapid expansion of highway construction area in China， some problems about wind force disasters on highway have appeared under special environmental conditions， which seriously threaten the safety of highway traffic. The compound disaster of snow drift and blown sand on Kete Highway in Altay Prefecture of Xinjiang just is a special seasonal wind-driven disaster. It is found that the occurrence of this kind of disaster is related to the regional disaster-pregnant environment with the reginonal east gale and abundant sand & snow sources in winter， as well as the layout of sand control system， the configuration of subgrade section and the artificial disturbance such as sand or snow stacking. In accordance with the principle of adapting measures to local conditions， fortifing against harm， complying with nature and addressing both symptoms and root causes， strengthening protection ability， and linking mechanical control with plant control have been formed in order to comprehensively control the blown sand disaster in spring and sand-snow compound disaster in winter. A comprehensive treatment scheme of road side terrain leveling， resistance-solid-transport structure protection system construction and later scientific management and protection has been formulated. This research results can provide a scientific plan for the disaster prevetion of Kete Highway， and also provide a reference for similar disaster control in other areas.

Key words: compound disaster of blown sand and snow drift, disaster-pregnant environment, formation mechanism, control scheme, Kumutoba Desert, Jeminay County

CLC Number:

P931.3

Shengyu Li, Gang Ding, Shijie Wang, Yazhou Zhao, Xinwen Xu, Tingting Zheng, Xincheng Wu. Formation mechanism and control scheme of the compound disaster of blown sand and snow drift on the Kete Highway in the Kumtoba Desert in Xinjiang， China[J]. Journal of Desert Research, 2022, 42(6): 14-24.

Figures/Tables 16

Fig.1 Map of the location of Kumtoba Desert and Kete Highway in Northwest Xinjiang， China

Fig.2 Annual variation of air temperature and precipitation in Jeminay County

Fig.3 Sand disaster of the national defense equipments along Kete Highway

Fig.4 Wind force disasters along Kete Highway

Fig.5 Wind regime of Jeminay County

Fig.6 Temporal and spatial variation of drift potential in Jeminay County

Table 1 Drift potential variation of Jeminay County

年份	输沙势 DP	合成输沙势 RDP	方向变率	合成输沙方向 RDD	备注	合成风方向 RWD	备注
2016	613.23	58.41	0.10	350.69	N	170.69	S
2017	388.36	71.69	0.18	87.51	E	267.51	W
2018	615.55	55.98	0.09	355.91	N	175.91	S
2019	495.26	35.76	0.07	2.90	N	182.90	S
2020	409.42	74.33	0.18	66.13	ENE	246.13	WSW
2021	442.64	98.85	0.22	314.25	NW	134.25	SE
平均或总体	494.08	65.84	0.14	12.83	NNE	192.83	SSW

Fig.7 Wind regime during snow period in Jeminay County

Fig.8 Diurnal variation of reginonal east gale in Jeminay County

Fig.9 Straw checkerboard buried by snow and wind-sand flow on its surface along the Kete Highway

Table 2 Threshold wind velocity of snow particles with different particle sizes at height of 10 meters when the temperature is below -6 ℃ （Quoted from Literature ［19］）

积雪种类	干燥新雪	细雪	老细粒雪
粒径/mm	<1	<0.5	0.5－1
平均密度/（g·cm^-3）	0.06	0.18	0.23
起动风速/（m·s^-1）	2.0	3.7－4.2	6－8

Table 3 Threshold wind velocity of sand particles with different particle sizes at height of 2 meters （Quoted from Literature ［22］）

不同沙粒	沙粒粒径/mm
不同沙粒	0.10－0.25	0.25－0.50	0.50－1.00	>1.00
起动风速/（m·s^-1）	4.0	5.6	6.7	7.1

Fig.10 The blowing snow-sand compound disasters on the road surface of Kete Highway

Fig.11 The diagram of blowing snow-sand composite disaster formation mechanism of Kete Highway

Fig.12 New straw checkerboard and sand-buried straw checkerboard along the Kete Highway

Fig.13 The schematic diagram of sand control system structure

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Formation mechanism and control scheme of the compound disaster of blown sand and snow drift on the Kete Highway in the Kumtoba Desert in Xinjiang， China

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