What if Wind Blossom's enhanced dragon project, rather than create the deformed watch-whers, was successful?
HomeCalendarFAQSearchMemberlistUsergroupsRegisterLog in
Who is online?
In total there are 2 users online :: 0 Registered, 0 Hidden and 2 Guests


Most users ever online was 17 on Sun Oct 06, 2013 5:35 pm
Killarney News
Year - Pass
19 AL - First

Season - Month
Early Spring - September

Frequent rain and quite humid.  The air is thick and thundershowers occur once a week or so.  It is still fairly cool for the southern continent, and nights border on chilly, but the sun and water are warm and the air is catching up.  Whenever the clouds clear, even temporarily, the temperature leaps upward.

Hatching News
Dragon: Gold Havreth x Bronze Morduth : TBD
Wher: Fifth Batch [15 Eggs] : TBD
Latest topics
» loan rates, loan interests, mortgage interests
Wed Oct 05, 2011 2:21 am by tathanhthientu

» YMCA and Healthy Living
Thu Sep 29, 2011 6:08 am by Sundeen65

» destination vietnam, travel tips, travel guide
Sat Aug 20, 2011 1:56 pm by tathanhthientu

» Seven deadly sins: A new look at society through an old lens
Thu Aug 04, 2011 8:58 am by Guest

» Pregnancy Symptoms
Wed Aug 03, 2011 1:07 pm by Guest

» which slot machines to play
Wed Aug 03, 2011 10:50 am by Guest

» fish oil depression
Wed Aug 03, 2011 1:27 am by Guest

» google seo backlink building service
Mon Aug 01, 2011 11:27 pm by Guest

» Auto Negotiation Tips and Secrets eBook
Mon Aug 01, 2011 11:17 pm by Guest

Perspectives of the Sun and MoonPern: ChroniclesSinthera WeyrHazrein Weyr - Pern RPAraelen WeyrIayla Weyr - 10th Pass Pern RPPokemon BloodSport

Share | 

 Types of Groundwater Dams

Go down 

Posts : 1
Join date : 2011-07-12

PostSubject: Types of Groundwater Dams   Tue Jul 12, 2011 9:01 am

Intense measures are being taken to preserve and harvest rainwater. Rain water harvesting system is being installed in almost all parts of India. Even in areas with heavy rainfall rain water harvesting systems are being used mandatorily. For example each flat in Kerala is now installing the system to save water.

There are a number of modern methods of conserving rain water among which groundwater dams is a new method. There are two types of groundwater dams: the sub-surface dam and the sand storage dam. A sub-surface dam reduces the variation of the level of the groundwater table upstream of the dam by intercepting or obstructing the flow of an aquifer. The structure is built completely under the ground.

The sand storage dam is built above the ground. During periods of high flow sand and soil particles are transported and are allowed to deposit behind the dam. The water is stored in these soil deposits. Constructed in layers the sand storage dam allows sand to be deposited and finer material to be washed downstream.

A combination of these two types can also be used as a groundwater dam. One can increase the storage volume by letting the dam wall rise over the surface while constructing a sub-surface dam in a river bed, thus causing additional accumulation of sediments. Also, while constructing a sand-storage dam it is necessary to excavate a trench in the sand bed to reach the bedrock. This can also be used to create a sub-surface dam.

During the monsoon season the reservoir is recharged and the stored water can be used during the dry season. The excess water replenishes the aquifers downstream.
Back to top Go down
View user profile
Types of Groundwater Dams
Back to top 
Page 1 of 1
 Similar topics
» The INTP
» Adding Multiple Weather Types to FEXP
» Personality types of the mbti
» Koj Nyob Qhov twg?
» Creative types of Training/Combat Conditioning

Permissions in this forum:You cannot reply to topics in this forum
Perspectives of the Sun and Moon :: Chatter and Such :: OOC Talk-
Jump to: