In heavy clay soil with low permeability, mole drains can drain excess water from the soil profile. Alternatively, mole drains can be combined with subsurface drainage to improve drainage performance in heavy clay soil (Section 6).
Types of Subsurface Drainage Systems | PDF | Drainage | Soil
This document discusses different types of subsurface drainage systems that can be used to drain excess water from wet soils. It describes four main types: corrugated and PVC slotted subsurface pipes; mole drainage including mole drains, mole drains over collector pipe systems, and gravel mole drains; interceptor drains; and groundwater pumps.
ICID: Resources - Drainage - Mole Drainage - Irrigation
Currently, mole drainage systems are most commonly used for surface water control in perched water table situations.Mole drains are also used in some groundwater problem areas and in paddy fields. Their use as a temporary subsurface drainage system for the reclamation of saline and saline sodic soils has been successful in field experiments
The two general types of drainage practices are surface and subsurface. Surface drainage is the removal of excess water from the soil surface. Subsurface drainage is the removal of water from the soil proile. 3.1. Surface Drainage.
mole drainage and gravel mole drainage. The aim of these drainage techniques is to improve hydraulic conductivity by fracturing and cracking the soil and to form a network of closely spaced channels. Mole drainage is suited to soils with a high clay content which form stable channels.
Moreover, mole drainage is mainly aimed at a rapid removal of excess surface water, rather than at controlling the watertable. The usual choice is therefore between open drains and pipe drains. This choice has to be made at two levels: for field drains and for collectors.
drains are unlined chan-nels installed in high clay content soils; gravel mole drains are used in less cohesive soils to prevent channel collapse. Gravel moles are, in effect, mole drains packed with gravel. Mole and gravel mole drains are installed as shal-low drainage systems in Ireland, but many questions remain about their use.
Mole drainage systems | Managing wet soils - Agriculture Victoria
What is a mole drain? Mole drainage, on the right soil type and when installed correctly, can help reduce waterlogging problems substantially. Mole drainage is widely used in New Zealand and the United Kingdom in heavy soils to improve productivity of pastures and crops.
Understanding the Types of Drainage Systems
6 days ago · Understanding the different types of drainage systems can help you choose the most suitable solution for your specific needs. 1. Surface Drainage Systems. Surface drainage systems are designed to remove excess water from the surface through channels, ditches, or gutters. These systems are ideal for areas with heavy rainfall, snowmelt, or ...
A brief overview to give a new perspective on mole drainage
Apr 1, 2023 · In the mole drainage method, tunnels are opened under the tillage depth with a torpedo-shaped piece at the end of a foot extending under the soil. These tunnels are called mole drains. In the...