请问如何修理预防地基附近的水土流失?

r
rainbow1950
楼主 (文学峸)

请看以下两个图,几个出租房地基附近有水土流失造成地基外露。地基附近地面有的平坦,有的是小斜坡。造成这个问题的原因,有的是因为gutter and downspout extension 的问题;有的是房子建在有点坡度的地上;并且地基附近地面裸露,没有草或其它植被覆盖。现在gutter and downspout都修好了,downspout extension也计划装上4~8尺长。

现在还计划做, 1. 在地基附近加土并压实一些。2。在地基附近加上rubber mulch 或gravel (小石子), 这个是optional. 请有类似经验的地主,分享一下经验好吗?1. 加土就行了嘛?还是最好再加mulch or gravel? 2. 是rubber mulch 还是小石子好? 自己做了一些研究,rubber mulch 40%  更贵,warranty 10年,安装方便。小石子便宜一些,基本上一劳永逸,安装重一些。不想用wood mulch, 因为只能坚持一年。谢谢

柠檬椰子汁
It's the water drainage.

When it is raining, go outside to see why there is flowing water near your foundation.  There should be NO water near your foundation when it is raining, because your rain gutter and downspouts should direct water far away from foudation as possible. 

Like in your first picture, the downspout just dump the water near corner of the house, that's not enough, you need to add pipes to direct water away from the foundation. The rain pipe could be exposed on ground, or for aethetics,  bury such pipes in the ground and it is not uncommon such pipes runs 10-20 yards away from the house. 

In your case, hire a drainage specialist to do an estimate of backfilling dirt around foundation, and make some modification to your gutter system to direct rain water away.  It is not high tech and mainly need knowledge and muscle. 

 

P
Patio
加土并做成小斜坡即可。
柠檬椰子汁
When they pour the foundation

Usually they put some wooden frame above ground to make concrete pretty, and the underground portion of the concrete pour would be irregular limited by just the trentch they dug.  You can see the dirt is washed away to expose the irregular concrete below the framed portion.  You need to backfill until the irregular concrete is invisible. 

o
orlandomagic
植树造林。
r
rainbow1950
很有道理。加土和downspout extension 是计划做。那出租房加rubber mulch 或小石子有必要吗?谢谢
r
rainbow1950
understand this. thanks very much!
r
rainbow1950
加土并且有点轻微坡度容易做,就是有点担心过几年是不是又有类似的水土流失问题了。
r
rainbow1950
在地基附近植树造林应该不是合适选择。种低矮的灌木或小花草对保持泥土应该有帮助,不过需要维护。

出租房想用容易维护的方案。谢谢。

柠檬椰子汁
没有必要,排水解决了填土就可以
r
rainbow1950
如果光填土那就简单多了。希望过一段时间就有野草能长上。或者我们撒点草籽上去。 ;)
柠檬椰子汁
光填土还是会被冲走,我白说了吗?
r
rainbow1950
您说是装上长的downspout extension 把水引走,再填土是吧。我明白。谢谢。
柠檬椰子汁
还有gutter要清理,很多落叶堵着
h
hz82000
种灌木,一劳永逸