US3902323A - Water-duct pipe for preventing landslides - Google Patents

Water-duct pipe for preventing landslides Download PDF

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Publication number
US3902323A
US3902323A US427109A US42710973A US3902323A US 3902323 A US3902323 A US 3902323A US 427109 A US427109 A US 427109A US 42710973 A US42710973 A US 42710973A US 3902323 A US3902323 A US 3902323A
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Prior art keywords
drainage pipe
pipe
water
driving
extension
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Expired - Lifetime
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US427109A
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English (en)
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Hikoitsu Watanabe
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits

Definitions

  • ABSTRACT A water-duct pipe for preventing landslides: a waterduct pipe having a head at one end and a number of water inlet holes along the whole length is driven into the ground, and employed with a set of additional pipes connected consecutively and larger in bore than the water-duct pipe and a set of driving bars having a suitable diameter to fit to the water-duct pipe and connected consecutively, so that the water-duct pipe may be settled in the underground water layer while protecting it from clogging with earth. Although all the water inlet holes are closed by the driving bar inserted into the water-duct pipe during the driving operation, they may be opened, as required, by drawing the driving bar out of the water-duct pipe to permit underground water, if any, to flow.
  • the present invention deals with a water-duct pipe for preventing landslides, making it possible to discharge water present in excess in the earth in dangerous regions and keep the water content consistently at a stabilized level without decreasing the settling capacity.
  • Water-duct pipes having a sharp conical head and a number of water inlet holes along the length have been employed in the past. They are driven horizontally or slightly inclined into the slopes at places where there is danger of landslides by connecting additional pipes until the preceding water-duct pipe reaches an appropriate layer. It is expected that the underground water v present there will be introduced into the water-duct pipe through the water inlet holes and discharged outside through the additional pipes. In fact, however, when such a water-duct pipe having a number of water inlet holes along its length is driven into the ground as it is, the earth pressed by the thrusting water-duct pipe invades it through the water inlet holes and settles there, eventually blocking the water inlet holes and the water-duct pipe.
  • the purpose of the present invention is to provide an improved water-duct pipe for preventing landslides that makes it possible to consistently prevent the earth invading it through its water inlet holes during the driving operation and to settle it exactly at the underground water layer without fail by ascertaining the underground water flow required.
  • a water-duct pipe having a head at the end, a number of water inlet holes along its length and a connecting socket fixed at the other end is employed with a set of additional pipes connected consecutively with connecting sockets, and larger in bore than the said water-duct pipe, and a set of driving bars having a diameter suitable to fit the water-duet pipe bore and which can be connected consecutively by means of threads.
  • both the additional pipes and the driving bars are connected one by one as required and the rear end of the last driving bar is hammered.
  • the water inlet holes of the waterduct pipe are closed by the inserted driving bar, preventing the invasion of earth into the water-duct pipe, while the underground water layer may be located without fail so as to fix the water-duct pipe there exactly by drawing the driving bar out of the water-duct pipe occasionally, as required, whereby the presence of an underground water layer may be determined by whether or not water flows out through the water-duct pipe and the clearance between the additional pipes and the driving bars.
  • FIG. 1 represents a front view showing an example of the water-duct pipe of the present invention for preventing landslides.
  • FIG. 2 represents a perspective view showing the head as it is removed from the fixing end of the waterduct pipe.
  • FIG. 3 represents a front view of an additional pipe.
  • FIG. 4 represent a front view showing an additional pipe connected to the water-duct pipe.
  • FIG. 5 represents a front view of the driving bar.
  • FIG. 6 represents a partly cut front view showing the driving bar inserted into the water-duet pipe as it is driven into the ground.
  • FIG. 7 represents a partly cut front view showing the driving bars inserted after the additional pipe is connectcd to the water-duct pipe, as they are driven into the ground.
  • the water-duct pipe 10 consists of a body 12, a head 14 fixed to the end and a socket 16 fixed to the other end.
  • the body 12 is made of material such as steel pipe having a stipulated bore, length and rigidity and has a number of water inlet holes 18 bored along its whole length.
  • the head 14 has a ring 20 which is larger in bore than the body 12 and notched at the top end 22 to accept cross-like blades 24 having a sharp edge. It may be fixed entirely by setting the ring base 20 in the top end of the body 12.
  • the socket 16 is to connect the additional pipe 28 to the body 12 as will be described below.
  • head 14 is made of a ring which is larger in bore than the body 12 and has internal threads 26 cut along the rear half to screw the top end of the additional pipe 28 into it. It may be fixed entirely by coupling the remaining half into the rear part of the body 12.
  • each additional pipe 28 may be connected to the water-duct pipe by means of the socket 16 of the latter. Furthermore, it may be further connected consecutively to extend the pipe line as the water-duct pipe 10 is driven deep into the ground. For this reason, an appropriate number of additional pipes are prepared as a set for each water-duct pipe 10.
  • each additional pipe 28 is made of material such as steel pipe having a stipulated length and a larger bore than the body 12 of the said water-duct pipe 10 and has external threads 30 cut at the top to screw it into the internal threads 26 of the socket 16 attached to the base of the water-duct pipe 10.
  • a socket 34 which carries internal threads 32 to fit the said external threads 30.
  • the pipe line may be extended as required by connecting additional pipes 28 consecutively to the water-duct pipe 10 as shown in FIG. 4.
  • the driving bar 36 is made of a very rigid material such as a round steel bar. It may be connected consecutively by means of threads 38 and its length is designed so that its rear end always protrudes appropriately beyond the rear end of the water-duct pipe 10 or the additional pipe 28 when it is inserted in the water-duct pipe 10 or the pipe line is extended with an additional pipe 28.
  • each driving bar 36 has an outer diameter fitting the bore of the water-duct pipe 10
  • the water inlet holes 18 are closed by the circumference of the driving bar 36 when it is inserted into the water-duct pipe 10, while a clearance 40 exists when it is inserted into the additional pipe 28 which has a larger bore than the water-duct pipe 10 (see FIG. 7).
  • the initial driving bar 36 is inserted into the water-duct pipe 10 so as to position the top at the base of the crushing blades 24 of the head 14 and an impact absorbing cap 42 is fixed by means of threads on the rear end of the driving bar 36 protruding beyond the rear of the water-duct pipe 10 so as to protect it from wear caused by the hammering.
  • the crushing blades 24 are applied to the slope 44 in regions where there is danger of landslides while keeping the waterduct pipe horizontal or lowering it slightly, and it is driven in by hammering the impact absorbing cap 42.
  • the water-duct pipe 10 overcomes the very strong resistance of the earth and thrusts into the ground, pushing the earth aside.
  • the water-duct pipe 10 is driven in to the desired depth while connecting additional pipes 28 and driving bars 36 successively.
  • the driving operation is stopped occasionally, as desired, to open the water inlet holes 18 by drawing the driving bar 36 out of the water-duct pipe 10 somewhat beyond the length of the latter to ascertain whether or not underground water flows out through the opened water inlet holes 18, the water-duct pipe 10, and the clearance 40 between the additional pipes 28 and the driving bars 36.
  • the driving bars 36 are withdrawn completely to finish the operation. If not, it indicates that the waterduct pipe 10 has not yet reached the underground water layer and therefore the driving bar 36 is inserted fully again and the driving operation continued. In such a manner, the driving operation is carried out while periodically checking for the presence of the underground water layer. According to the present invention, therefore, it is possible to fix the water-duct pipe 10 without fail in the underground water layer while confirming its presence by a very simple method.
  • a method of driving a drainage pipe for draining of excess ground water comprising the steps of connecting a string of pipes, including a perforated drainage pipe having a driving head at its leading end, and at least one imperforate extension pipe connected to the trailing end of said drainage pipe and having an inner diameter larger than the inner diameter of said drainage pipe;
  • a drainage pipe set for preventing landslides due to excess ground water comprising a drainage pipe provided with perforations over substantially its entire length and adapted to be driven into the ground in a substantially horizontal orientation;
  • At least one imperforate extension pipe eoaxially connectable with a trailing end of said drainage pipe and having an inner diameter larger than the inner diameter of said drainage pipe;
  • connecting means for coaxially connecting said extension pipe to said trailing end of said drainage pipe
  • a driving rod insertable through said extension pipe into said drainage pipe into driving engagement with the latter, said driving rod having an outer diameter smaller than the inner diameter of said extension pipe to define therein annular clearance but equal to the inner diameter of said drainage pipe so as to completely block the perforations of the latter against clogging by the ambient soil, whereby the perforations of said drainage pipe are blocked by said driving rod against clogging by the ambient soil while said drainage pipe is being driven, and the position of said drainage pipe in relation to the ground water to be drained can be ascertained at any desired time by withdrawing said driving rod from said drainage pipe into said extension pipe to thereby unblock the perforations of said drainage pipe and communicate the interior of said drainage pipe with said clearance in said extension pipe, so that the gravity run-off or the lack thereof of water from a trailing end of said exten' sion pipe will indicate whether or not said drainage pipe has been driven to a depth at which water to be drained is present.
  • a drainage pipe set as defined in claim 3, wherein said driving head comprises a ring portion into which said leading end of said drainage pipe is insertable at one end of said ring portion, and a plurality of soilcrushing blades mounted on said ring portion at the opposite end of the latter.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • Mechanical Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
US427109A 1973-10-23 1973-12-21 Water-duct pipe for preventing landslides Expired - Lifetime US3902323A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48118565A JPS5066912A (ja) 1973-10-23 1973-10-23

Publications (1)

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US3902323A true US3902323A (en) 1975-09-02

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Application Number Title Priority Date Filing Date
US427109A Expired - Lifetime US3902323A (en) 1973-10-23 1973-12-21 Water-duct pipe for preventing landslides

Country Status (4)

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US (1) US3902323A (ja)
JP (1) JPS5066912A (ja)
DE (1) DE2401569A1 (ja)
GB (1) GB1427770A (ja)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363366A (en) * 1980-06-13 1982-12-14 Keck Consulting Services, Inc. Screened hollow stem auger for use in well drilling and testing process
US4626129A (en) * 1983-07-27 1986-12-02 Antonius B. Kothman Sub-soil drainage piping
US4664557A (en) * 1984-03-15 1987-05-12 Phoenix Engineering Ltd. Method and apparatus for constructing an underwater fill
US4697952A (en) * 1986-02-28 1987-10-06 Maddock Mitchell E Underground irrigation apparatus and method for using same
US4844182A (en) * 1988-06-07 1989-07-04 Mobil Oil Corporation Method for improving drill cuttings transport from a wellbore
US5097914A (en) * 1989-05-23 1992-03-24 Terratronic Vertrieb Von Zielbohrsystemen Gmbh Method and device for producing unadulterated water samples in drilling a well
US5152808A (en) * 1989-07-20 1992-10-06 Rockwool/Grodan B.V. Drainage coupling member
DE29622415U1 (de) * 1996-12-24 1997-02-20 Rehau Ag + Co, 95111 Rehau Drainagerohr
US20140076530A1 (en) * 2012-09-18 2014-03-20 Alejandro Augusto Alvarez De Toledo Facility with wells having multiple horizontal galleries for lowering water tables
JP2017078281A (ja) * 2015-10-20 2017-04-27 株式会社建設技術研究所 透水濾過装置、透水濾過装置を備えた擁壁、及び、透水濾過装置の挿入方法
US20190153698A1 (en) * 2017-06-30 2019-05-23 Zhejiang University Self-starting negative pressure drainage system for draining groundwater in slope and construction method thereof
US20190153697A1 (en) * 2017-06-30 2019-05-23 Zhejiang University Self-drainage anchor cable system for slope protection and construction method thereof
CN114658016A (zh) * 2022-04-06 2022-06-24 中建八局第一建设有限公司 一种可回收降水井井管结构及其安装结构和施工方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212244A (ja) * 1983-05-17 1984-12-01 エ−フア−マリ−ア・ラスバツハ 多層有孔管
JPS63308115A (ja) * 1987-06-08 1988-12-15 Kumagai Naoki 水抜き管及びその施工方法
DE9314980U1 (de) * 1993-10-02 1993-12-23 Bilfinger + Berger Bauaktiengesellschaft, 68165 Mannheim Vorrichtung zur Abdeckung und Rutschsicherung von geneigten Oberflächen, insbesondere von Hängen, Hangdeponien oder Halden, oder der Böschungen von Deponien und Aufschüttungen
CN107142923A (zh) * 2017-05-25 2017-09-08 湖南科鑫电力设计有限公司 排水管和利用该排水管处理边坡下滑的方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US216042A (en) * 1879-06-03 Improvement in driving hollow metal piles for tube-wells
US468343A (en) * 1892-02-09 Strasner-point for driven wells
US674191A (en) * 1900-07-28 1901-05-14 Lundy B Hogue Drive-well device.
US1200119A (en) * 1916-03-02 1916-10-03 Morris H Keeler Machine for laying pipes.
US1210187A (en) * 1916-05-29 1916-12-26 James E Marquiss Conduit-forming device.
US2126575A (en) * 1934-07-23 1938-08-09 Ranney Leo Method of and apparatus for recovering water from and supplying water to subterranean formations
US2136151A (en) * 1936-03-26 1938-11-08 Margaret Parrish Drainage pipe and method of and means for installing the same
US2186364A (en) * 1939-06-21 1940-01-09 Firman L Carswell Method of and means for installing subdrain pipe
US2383496A (en) * 1941-03-06 1945-08-28 Nebolsine Ross Method of and apparatus for installing lateral wells in fluidsaturable earth
US3261412A (en) * 1963-09-05 1966-07-19 Lob Adalbert Point and driving assembly for making earth holes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4525068Y1 (ja) * 1965-11-05 1970-10-01

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US216042A (en) * 1879-06-03 Improvement in driving hollow metal piles for tube-wells
US468343A (en) * 1892-02-09 Strasner-point for driven wells
US674191A (en) * 1900-07-28 1901-05-14 Lundy B Hogue Drive-well device.
US1200119A (en) * 1916-03-02 1916-10-03 Morris H Keeler Machine for laying pipes.
US1210187A (en) * 1916-05-29 1916-12-26 James E Marquiss Conduit-forming device.
US2126575A (en) * 1934-07-23 1938-08-09 Ranney Leo Method of and apparatus for recovering water from and supplying water to subterranean formations
US2136151A (en) * 1936-03-26 1938-11-08 Margaret Parrish Drainage pipe and method of and means for installing the same
US2186364A (en) * 1939-06-21 1940-01-09 Firman L Carswell Method of and means for installing subdrain pipe
US2383496A (en) * 1941-03-06 1945-08-28 Nebolsine Ross Method of and apparatus for installing lateral wells in fluidsaturable earth
US3261412A (en) * 1963-09-05 1966-07-19 Lob Adalbert Point and driving assembly for making earth holes

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363366A (en) * 1980-06-13 1982-12-14 Keck Consulting Services, Inc. Screened hollow stem auger for use in well drilling and testing process
US4626129A (en) * 1983-07-27 1986-12-02 Antonius B. Kothman Sub-soil drainage piping
US4664557A (en) * 1984-03-15 1987-05-12 Phoenix Engineering Ltd. Method and apparatus for constructing an underwater fill
US4697952A (en) * 1986-02-28 1987-10-06 Maddock Mitchell E Underground irrigation apparatus and method for using same
GB2242460B (en) * 1988-06-07 1992-04-08 Mobil Oil Corp Method for improving drill cuttings transport from a wellbore
WO1989012156A1 (en) * 1988-06-07 1989-12-14 Mobil Oil Corporation Method for improving drill cuttings transport from a wellbore
GB2242460A (en) * 1988-06-07 1991-10-02 Mobil Oil Corp Method for improving drill cuttings transport from a wellbore
US4844182A (en) * 1988-06-07 1989-07-04 Mobil Oil Corporation Method for improving drill cuttings transport from a wellbore
US5097914A (en) * 1989-05-23 1992-03-24 Terratronic Vertrieb Von Zielbohrsystemen Gmbh Method and device for producing unadulterated water samples in drilling a well
US5152808A (en) * 1989-07-20 1992-10-06 Rockwool/Grodan B.V. Drainage coupling member
DE29622415U1 (de) * 1996-12-24 1997-02-20 Rehau Ag + Co, 95111 Rehau Drainagerohr
US20140076530A1 (en) * 2012-09-18 2014-03-20 Alejandro Augusto Alvarez De Toledo Facility with wells having multiple horizontal galleries for lowering water tables
JP2017078281A (ja) * 2015-10-20 2017-04-27 株式会社建設技術研究所 透水濾過装置、透水濾過装置を備えた擁壁、及び、透水濾過装置の挿入方法
US20190153698A1 (en) * 2017-06-30 2019-05-23 Zhejiang University Self-starting negative pressure drainage system for draining groundwater in slope and construction method thereof
US20190153697A1 (en) * 2017-06-30 2019-05-23 Zhejiang University Self-drainage anchor cable system for slope protection and construction method thereof
US10550537B2 (en) * 2017-06-30 2020-02-04 Zhejiang University Self-drainage anchor cable system for slope protection and construction method thereof
US10577770B2 (en) * 2017-06-30 2020-03-03 Zhejiang University Self-starting negative pressure drainage system for draining groundwater in slope and construction method thereof
CN114658016A (zh) * 2022-04-06 2022-06-24 中建八局第一建设有限公司 一种可回收降水井井管结构及其安装结构和施工方法
CN114658016B (zh) * 2022-04-06 2023-07-25 中建八局第一建设有限公司 一种可回收降水井井管结构及其安装结构和施工方法

Also Published As

Publication number Publication date
DE2401569A1 (de) 1975-04-30
JPS5066912A (ja) 1975-06-05
GB1427770A (en) 1976-03-10

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