Characteristic of Flow Velocity and Sediment Yielding on Engineering Accumulations Slope with Three Soil Textures

LI Jian-ming; WANG Yi-feng; ZHANG Chang-wei; WANG Wen-long; HUANG Jin-quan; WANG Zhi-gang; ZHANG Guan-hua; BAI Yun

doi:10.11988/ckyyb.20190134

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Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (12) : 28-35. DOI: 10.11988/ckyyb.20190134

WATERSOIL CONSERVATION AND ECOCONSTRUCTION

Characteristic of Flow Velocity and Sediment Yielding on Engineering Accumulations Slope with Three Soil Textures

LI Jian-ming^1,2,3, WANG Yi-feng¹, ZHANG Chang-wei¹, WANG Wen-long^2,4, HUANG Jin-quan¹,
WANG Zhi-gang¹, ZHANG Guan-hua¹, BAI Yun⁵

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Abstract

The process of velocity and sediment yielding on engineering accumulations slope are different from traditional due to differences in soil textures and mass fraction of gravel in production and construction projects. In this paper we examined the characteristic of flow velocity and sediment yielding on engineering accumulations with three soil textures (sandy soil, loam, and clay) via artificial simulation experiments. Results showed that: (1) Flow velocity increased at first within 3 minutes after the beginning of the runoff and then stabilized. (2) For sandy soil accumulations,erosion mainly occurred in the middle and late stages of runoff at small rainfall intensity; for loam, in the early and middle stages; and for clay accumulations, throughout the whole runoff process. The accumulative sediment yielding 21 minutes after runoff beginning accounted for 52.3%-95.6%,29.6%-44.9%, and 42.1%-50.0% of the total erosion amount of sand, loam and clay accumulations. (3) Significant correlations were found with runoff rate, infiltration rate, velocity, and sediment yielding rate against runoff time and rainfall intensity. Erosion amount increased by 1.2-39.8 times as rainfall intensity increased 1.5-2.0 times. Erosion amount for sandy accumulations was 6.0-6.3 times that of loam accumulations, 3.2-3.5 times that of clay accumulations under the same rainfall intensity, and 5.0-9.8 times and 2.7-3.8 times those of loam and clay accumulations with the same mass fraction of gravel. The research findings are of great significance for clarifying the mechanism of erosion process of engineering accumulations, and lay a foundation for establishing the erosion prediction model for engineering accumulations.

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engineering accumulations / sediment yielding / flow velocity / mass fraction of gravel / soil textures

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LI Jian-ming, WANG Yi-feng, ZHANG Chang-wei, WANG Wen-long, HUANG Jin-quan,
WANG Zhi-gang, ZHANG Guan-hua, BAI Yun. Characteristic of Flow Velocity and Sediment Yielding on Engineering Accumulations Slope with Three Soil Textures[J]. Journal of Changjiang River Scientific Research Institute. 2019, 36(12): 28-35 https://doi.org/10.11988/ckyyb.20190134

References

[1] LV J R, LUO H, XIE Y S. Effects of Rock Fragment Content, Size and Cover on Soil Erosion Dynamics of Spoil Heaps through Multiple Rainfall Events[J] . Catena, 2019, 172: 179-189.
[2] 张平仓, 周若, 程冬兵, 等. 工程开挖面特征及土壤流失量快速监测方法探讨[J] .长江科学院院报,2013,30(9):22-26.
[3] WANG X Y, LI Z X, CAI C F, et al. Effects of Rock Fragment Cover on Hydrological Response and Soil Loss from Regosols in a Semi-humid Environment in South-West China[J] . Geomorphology, 2012, 151/152: 234-242.
[4] 倪含斌, 张丽萍. 神东矿区堆积弃土坡地入渗规律试验研究[J] .水土保持学报, 2007, 21(3):28-31.
[5] 郭朝旭. 松散滑坡堆积体降雨入渗过程的实验研究[R] .北京:中国地理学会,2013.
[6] 周蓓蓓, 邵明安, 王全九.不同碎石种类对土壤入渗的影响[J] .西北农林科技大学学报(自然科学版), 2011,39(10):141-147.
[7] 王慧芳, 邵明安.含碎石土壤水分入渗试验研究[J] .水科学进展, 2006, 17(5):604-609.
[8] 符素华.土壤中砾石存在对入渗影响研究进展[J] .水土保持学报, 2005, 1(1):171-175.
[9] 戎玉博,王森,白玉洁,等.含砾石锥状工程堆积体侵蚀水动力学特性和细沟形态特征[J] .水土保持学报,2018,32(2):134-141.
[10] 康宏亮,王文龙,薛智德,等.北方风沙区砾石对堆积体坡面径流及侵蚀特征的影响[J] .农业工程学报,2016,32(3):125-134.
[11] 朱波, 莫斌, 王涛, 等. 紫色丘陵区工程建设松散堆积物的侵蚀研究[J] .水土保持学报, 2005,19(4): 193-195.
[12] 崔斌, 苏芳莉, 郭成久. 模拟降雨条件下不同颗粒级配工程弃土的侵蚀实验[J] .中国水土保持科学, 2012, 10(2):61-65.
[13] 宓永宁,娄宗科. 建筑材料[M] .北京: 中国农业出版社,2006: 73-76.
[14] 张婧媛,张平仓,丁文峰.黄土与紫色土坡面侵蚀特征对比试验研究[J] .水土保持通报,2010,30(4):60-62,67.
[15] 史东梅,蒋光毅,彭旭东,等. 不同土石比的工程堆积体边坡径流侵蚀过程[J] . 农业工程学报,2015,31(17):152-161.
[16] POESEN J, LUNA E D, FRANCA A, et al. Concentrated Flow Erosion Rates as Affected by Rock Fragment Cover and Initial Soil Moisture Content[J] . Catena, 1999, 36: 319-325.
[17] 王小燕, 李朝霞, 徐勤学, 等. 砾石覆盖对土壤水蚀过程影响的研究进展[J] . 中国水土保持科学, 2011, 9(1): 115-120.
[18] 朱兴华,庄建琦,李亚哲,等.弃渣型泥石流输沙速率模型试验研究[J] .长江科学院院报,2017,34(9):41-46.
[19] 朱元骏, 邵明安. 不同碎石含量的土壤降雨入渗和产沙过程初步研究[J] . 农业工程学报, 2006, 22(2):64-67.
[20] 张冠华,程冬兵,张平仓,等.工程开挖面水土流失特征试验研究[J] .长江科学院院报,2015,32(3):27-30.
[21] IQBAL J, DAI F C, HONG M, et al. Failure Mechanism and Stability Analysis of an Active Landslide in the Xiangjiaba Reservoir Area, Southwest China[J] . Journal of Earth Science,2018, 29(3): 646-661.
[22] 唐扬,殷坤龙,汪洋,等. 斜坡降雨入渗的改进Mein-Larson模型[J] .地球科学,2017,42(4):634-640.
[23] 赵暄,谢永生,景民晓,等.生产建设项目弃土堆置体下垫面仿真模拟标准化参数[J] .水土保持学报,2012,26(5):229-234.
[24] 雷廷武, 张晴雯, 闫丽娟. 细沟侵蚀物理模型[M] . 北京: 科学出版社, 2009:117-129.
[25] ALMEIDA W S, PANACHUKI E, OLIVEIRA P T S, et al. Effect of Soil Tillage and Vegetal Cover on Soil Water Infiltration[J] . Soil & Tillage Research, 2018,175: 130-138.
[26] ZHANG W, WEI C, LI Y, et al. Effects of Rock Fragments on Infiltration and Evaporation in Hilly Purple Soils of Sichuan Basin, China[J] . Environmental Earth Sciences, 2011, 62(8): 1655-1665.
[27] FIGUEIREDO T, POESEN J. Effects of Surface Rock Fragment Characteristics on Interrill Runoff and Erosion of a Silty Loam Soil[J] . Soil & Tillage Research, 1998, 46(1/2):81-95.
[28] PENG X D, SHI D M, JIANG D, et al. Runoff Erosion Process on Different Underlying Surfaces from Disturbed Soils in the Three Gorges Reservoir Area, China[J] . Catena, 2014, 123: 215-224.
[29] 李君兰,蔡强国,孙莉英,等. 坡面水流速度与坡面含砂量的关系[J] . 农业工程学报,2011,27(3):73-78.