STRATIFIED PUMPING WELL

Title:

STRATIFIED PUMPING WELL

Document Type and Number:

Japanese Patent JP3338909

Kind Code:

B

Abstract:

PURPOSE: To provide a simple stratified pumping well capable of separately pumping water from a plurality of aquifers.
CONSTITUTION: A drilled hole 31 is formed, so as to penetrate an impermeable layer 1 and reach an aquifer 3 existing underneath and, then, the hole is internally divided into upper and lower sections at the position of the layer 1 via a water stop screen 34, so as to be capable of stopping water. Also, a plurality of well tubes 33 and 34 respectively corresponding to aquifers 2 and 3 as pumping objects are arranged, so that the screens 35 and 36 respectively come to be located at the positions of the aquifers 2 and 3. Then, ground water flowing from each aquifer into the tubes 33 and 34 is pumped up with lifting pumps 39 and 40.

More Like This:

JP07207715	STRATIFIED PUMPING DEVICE
WO/2007/080273	PROCESS AND PLANT FOR MAKING USE OF GROUNDWATER
JP2002322726	UNDERGROUND PERMEATION AND DRAINAGE STRUCTURE AND ITS CONSTRUCTION METHOD

Inventors:

Miyake, Noriji
Kosaka, Nobuaki
Kobayashi, Tsutomu
Nakatsuka, Hiroshi

Application Number:

JP1994000004139

Publication Date:

August 16, 2002

Filing Date:

January 19, 1994

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SHIMIZU CORP

International Classes:

E03B3/12; E02D19/10; E21B43/14; E03B3/00; E02D19/00; E21B43/00; (IPC1-7): E03B3/12; E02D19/10; E21B43/14

Previous Patent: METHOD AND DEVICE FOR EXTENDING SLUDGE FEED AND DISCHARGE PIPE

Next Patent: METHOD OF FREEZING GROUND