A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR LOWERING GROUND WATER LEVEL AND SYSTEM FOR LOWERING GROUND WATER LEVEL
PROBLEM TO BE SOLVED: To prevent uneven subsidence by optimizing pumping pattern to realize efficient pumping upon lowering ground water level in ground improvement operation and the like.SOLUTION: Pumping is performed with a water pump 200 arranged in each of water wells 50 to measure a ground water level in each of the water wells 50 and a ground water level in each of observation holes 60. With pumping effect quantifying means 110, the degree of effect provided by each of the water wells 50 on the water level in each of the observation holes 60 is grasped to quantify the degree of effect of each of the water wells 50 in each of the observation holes 60. Water pumping is performed with each of pumping control means 120 to make the ground water level of each of the water wells 50 uniform at a predetermined depth. Then, with a pumping water level meter 20 and an observation water level meter 300, the ground water levels in each of the water wells 50 and each of the observation holes 60 are measured, and according to the quantified degree of effect, pumping with each of the water pumps 200 is controlled in a manner where a predetermined depth of ground water level is maintained in all regions of improvement target ground.
【課題】 地盤改良工事等で地下水位を低下させる際に、揚水パターンの最適化を行って、効率的な揚水を行うことにより、不等沈下を生じさせない。【解決手段】 各揚水井戸５０に設けた揚水ポンプ２００により揚水を行い、各揚水井戸５０内の地下水位及び各観測孔６０内の地下水位を計測する。揚水影響度定量化手段１１０により、各揚水井戸５０が各観測孔６０の水位に与える感度を把握して、各観測孔６０に対する各揚水井戸５０の影響度を定量化する。各揚水制御手段１２０により揚水を行って、各揚水井戸５０の地下水位を一様に所定の深度とする。その後、揚水水位計２０及び観測水位計３００により、各揚水井戸５０及び各観測孔６０内の地下水位を計測するとともに、定量化した影響度に応じて、改良対象地盤の全域における地下水位が所定の深度を維持するように、各揚水ポンプ２００による揚水を制御する。【選択図】図１
METHOD FOR LOWERING GROUND WATER LEVEL AND SYSTEM FOR LOWERING GROUND WATER LEVEL
PROBLEM TO BE SOLVED: To prevent uneven subsidence by optimizing pumping pattern to realize efficient pumping upon lowering ground water level in ground improvement operation and the like.SOLUTION: Pumping is performed with a water pump 200 arranged in each of water wells 50 to measure a ground water level in each of the water wells 50 and a ground water level in each of observation holes 60. With pumping effect quantifying means 110, the degree of effect provided by each of the water wells 50 on the water level in each of the observation holes 60 is grasped to quantify the degree of effect of each of the water wells 50 in each of the observation holes 60. Water pumping is performed with each of pumping control means 120 to make the ground water level of each of the water wells 50 uniform at a predetermined depth. Then, with a pumping water level meter 20 and an observation water level meter 300, the ground water levels in each of the water wells 50 and each of the observation holes 60 are measured, and according to the quantified degree of effect, pumping with each of the water pumps 200 is controlled in a manner where a predetermined depth of ground water level is maintained in all regions of improvement target ground.
【課題】 地盤改良工事等で地下水位を低下させる際に、揚水パターンの最適化を行って、効率的な揚水を行うことにより、不等沈下を生じさせない。【解決手段】 各揚水井戸５０に設けた揚水ポンプ２００により揚水を行い、各揚水井戸５０内の地下水位及び各観測孔６０内の地下水位を計測する。揚水影響度定量化手段１１０により、各揚水井戸５０が各観測孔６０の水位に与える感度を把握して、各観測孔６０に対する各揚水井戸５０の影響度を定量化する。各揚水制御手段１２０により揚水を行って、各揚水井戸５０の地下水位を一様に所定の深度とする。その後、揚水水位計２０及び観測水位計３００により、各揚水井戸５０及び各観測孔６０内の地下水位を計測するとともに、定量化した影響度に応じて、改良対象地盤の全域における地下水位が所定の深度を維持するように、各揚水ポンプ２００による揚水を制御する。【選択図】図１
METHOD FOR LOWERING GROUND WATER LEVEL AND SYSTEM FOR LOWERING GROUND WATER LEVEL
地下水位低下工法及び地下水位低下システム
HAYASHI MIKIAKI (author) / NAKAI MIKIO (author) / YAMAUCHI TAKAHIRO (author) / TANAKA MAHO (author) / OTA MITSUTAKA (author)
2015-10-22
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| Engineering Index Backfile | 1925
Contribution to theory of lowering of ground water level
| Engineering Index Backfile | 1959
| Wiley | 1918