基于W-OH-SF的砒砂岩抗蚀促生机理研究

论文总字数：23123字

摘 要

近年来，砒砂岩区土壤侵蚀相当严重，生态环境十分脆弱。虽然国家针对该地区的环境恶化问题相当重视，但是由于治理十分困难，所研究的治理措施都没法同时满足经济、高效、可持续的特点。因此研制新型环保的化学固化材料是目前的主流。

本文主要研究一种名为W-OH-SF的有机复合固化材料对砒砂岩抗蚀促生性能的影响。具体从三个实验进行阐述。

首先通过SEM扫描电镜，观察该砒砂岩复合体的结构，微观的分析该复合体与砒砂岩原岩差别。结果显示，砒砂岩复合体上形成一层明显的“薄膜”，该薄膜是一种多孔固化层，不仅增加砒砂岩的自身强度，而且多孔也给种子的发芽提供了空间。

然后通过多组实验，测试不同浓度的砒砂岩复合体的水稳性系数K，定量的分析了砒砂岩复合体的抗蚀性能。实验表明，砒砂岩加入W-OH-SF有机固化材料后，水稳性系数都高于90%，大大提高了砒砂岩的抗蚀性能。

最后通过植生实验，测试种子的发芽率。结果显示加入W-OH-SF固化剂后对发芽率有一定影响，因为它与砒砂岩形成的固结层能有效的保护水分，促进种子发芽生长。

关键词

砒砂岩 W-OH-SF SEM扫描电镜 抗蚀性 植生

A Study of Pisha Sandstone Area about Anti-corrosion and Growth Promotion based on W-OH-SF

Abstract

Recent years, soil erosion in sanstone area is quite serious and the ecology environment is very fragile. Although our country attaches importance to environmental degradation in this area, the treatment measures studied can not meet the requirements of economy、high efficiency and sustainability because of the difficulty of environmental treatment. So the development of new environmental chemical curing material is our main task now .

This paper is designed for the effect that the material W-OH-SF has on sandstone about anti-corrosion and growth promotion. Followings are three experiments carrying on elaborate specifically.

Firstly, the microstructure of sandstone complex by SEM was observed to looke into the curing effect of cured layer and compared the differences in structure of protolith and complex qualitatively. As a result, the sandstone complex formed an abvious thin layer, which was solidfied porous membrane. It increased the intensity of sandstone itself as well as provided some space for seed germination.

Then through multi-groups experiments, the coefficient of water stability K of different concentration of sandstone complex was tested and the corrosion resistance of sandstone complex was analyzed quantificationally. It turned out that when sandstone was combined with W-OH-SF, its coefficient of water stability was all over 90 percent. W-OH-SF improved the corrosion resistance of sandstone greatly.

Finally by vegetative experiments, the germination rate of seed was tested. Results showed that after being joined with W-OH-SF, curing agent has certain influence to the germination rate, because the consolidation layer formed by W-OH-SF and sandstone can effectively protect the moisture and promote the growth of seetamend germination.

Keywords：

Pisha sandstone W-OH-SF SEM Corrosion stability Vagetaion

目录

第一章绪论····································································7

1引言········································································7

1.1研究背景···································································7

1.2砒砂岩分布以及结构特征·····················································7

1.3砒砂岩的力学性能···························································8

1.4砒砂岩区的治理·····························································9

1.4.1生物措施······························································9

1.4.2工程措施·····························································10

1.4.3措施优缺点···························································10

1.5沙土固化方法······························································10

1.5.1机械固结、生物固结、化学固结···········································10

1.5.2国内外固化研究调查···················································11

1.5.3化学固沙材料·························································11

1.6W-OH-SF有机复合固化材料··················································12

1.6.1固化原理·····························································12

1.6.2W-OH-SF有机负荷固化材料各项指标介绍·································12

1.7研究内容和方法····························································14

第二章 砒砂岩复合体微观结构研究·············································15

2.1微观结构研究方法··························································15

2.2实验材料和设备····························································15

2.3扫描过程与结果分析························································15

第三章 砒砂岩复合体抗蚀性验··················································17

3.1重力侵蚀：·································································17

3.1.1应用技术·····························································17

3.1.2砒砂岩区重力侵蚀及交互作用分析·······································17

3.1.3重力侵蚀中的问题·····················································18

3.2风蚀······································································18

3.2.1风洞实验·····························································18

3.3抗蚀性实验································································18

3.3.1实验原理·····························································18

3.3.2实验目的·····························································18

3.3.3实验仪器与材料·······················································18

3.3.4实验步骤·····························································18

3.3.5实验数据记录·························································20

3.3.6实验分析·····························································23

3.3.7实验结论·····························································24

第四章促生性实验·····························································25

4.1植生实验··································································25

4.2保水性实验································································28

第五章 结论与展望····························································30

5.1结论······································································30

5.2展望······································································30

致谢·········································································31

参考文献 ····································································32

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