JPS5789014A - Testing method for water permeability in field - Google Patents

Testing method for water permeability in field

Info

Publication number
JPS5789014A
JPS5789014A JP16397480A JP16397480A JPS5789014A JP S5789014 A JPS5789014 A JP S5789014A JP 16397480 A JP16397480 A JP 16397480A JP 16397480 A JP16397480 A JP 16397480A JP S5789014 A JPS5789014 A JP S5789014A
Authority
JP
Japan
Prior art keywords
pit
measuring tube
water
packer
ground water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16397480A
Other languages
Japanese (ja)
Inventor
Takashi Matsunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matsunaga Geosurvey Co Ltd
Original Assignee
Matsunaga Geosurvey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsunaga Geosurvey Co Ltd filed Critical Matsunaga Geosurvey Co Ltd
Priority to JP16397480A priority Critical patent/JPS5789014A/en
Publication of JPS5789014A publication Critical patent/JPS5789014A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

PURPOSE: To eliminate the needs for pumping up the ground water in a pit by closing the tip of a measuring tube with a trip valve and by sealing the space between the pit wall and the measuring tube by expanding a packer.
CONSTITUTION: A pit 1 is bored. A measuring tube 3 whose top 3a is provided with an enclosed trip valve 4 and a packer 5 is inserted from its tip 3a into the test layer level 2 composed of a sandy water permeable soil layer of the pit 1. Then, the packer 5 is expanded through an air supply pipe 7 leading to a gas container so as to set the measuring tube to the wall of the pit, whereupon the flow of the ground water 9 in the test layer level and also of the ground water 8 in the other layer level is interruped. When the trip valve 4 is set to an open state 4', the ground water 2 goes up until being equilibrated through varying water levels 10 (So...St) inside the measuring tube 3. The relation between the water levels 10 and time is measured to obtain a water permeation coefficient.
COPYRIGHT: (C)1982,JPO&Japio
JP16397480A 1980-11-20 1980-11-20 Testing method for water permeability in field Pending JPS5789014A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16397480A JPS5789014A (en) 1980-11-20 1980-11-20 Testing method for water permeability in field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16397480A JPS5789014A (en) 1980-11-20 1980-11-20 Testing method for water permeability in field

Publications (1)

Publication Number Publication Date
JPS5789014A true JPS5789014A (en) 1982-06-03

Family

ID=15784348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16397480A Pending JPS5789014A (en) 1980-11-20 1980-11-20 Testing method for water permeability in field

Country Status (1)

Country Link
JP (1) JPS5789014A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012127673A (en) * 2010-12-13 2012-07-05 Yonden Gijutsu Consultant:Kk Permeability testing device
CN106192971A (en) * 2016-08-26 2016-12-07 中冶集团武汉勘察研究院有限公司 A kind of artesian water water-level observation well construction and the method for multilamellar water-level observation
CN106436673A (en) * 2016-07-22 2017-02-22 中铁二院工程集团有限责任公司 Field water immersion testing method of expansive soil foundation under roadbed project

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012127673A (en) * 2010-12-13 2012-07-05 Yonden Gijutsu Consultant:Kk Permeability testing device
CN106436673A (en) * 2016-07-22 2017-02-22 中铁二院工程集团有限责任公司 Field water immersion testing method of expansive soil foundation under roadbed project
CN106436673B (en) * 2016-07-22 2019-01-04 中铁二院工程集团有限责任公司 Submerging test method in expansive soil foundation scene under subgrade engineering
CN106192971A (en) * 2016-08-26 2016-12-07 中冶集团武汉勘察研究院有限公司 A kind of artesian water water-level observation well construction and the method for multilamellar water-level observation

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