CN106049414A - Lap joint combined type hole interior protection device and method for deep drainage hole of deep and thick layer slip mass - Google Patents

Lap joint combined type hole interior protection device and method for deep drainage hole of deep and thick layer slip mass Download PDF

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Publication number
CN106049414A
CN106049414A CN201610625876.4A CN201610625876A CN106049414A CN 106049414 A CN106049414 A CN 106049414A CN 201610625876 A CN201610625876 A CN 201610625876A CN 106049414 A CN106049414 A CN 106049414A
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pipe
deep
rigid plastics
protection device
filter pipe
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CN106049414B (en
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王汉辉
刘权庆
闫福根
丁刚
樊少鹏
黄小艳
肖伟
邹德兵
施华堂
刘瑞懿
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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Changjiang Institute of Survey Planning Design and Research Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • 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

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention discloses a lap joint combined type hole interior protection device and method for a deep drainage hole of a deep and thick layer slip mass. A water feeding component (1) comprises hard plastic water filter pipes (1.1), geotechnical cloth (1.2), a guiding cap (1.3) and pipe hoops (1.4). Every two adjacent sections of hard plastic water filter pipes (1.1) are fixed through the pipe hoops (1.4), and the whole section of each hard plastic water filter pipe (1.1) is wrapped by the geotechnical cloth (1.2), and a nylon rope is wound around the geotechnical cloth (1.2) to fix the geotechnical cloth (1.2). The hard plastic water filter pipe (1.1) at the front section is sleeved with the cone-shaped guiding cap (1.3) connected with the hard plastic water filter pipe (1.1) in an inserting manner. The lap joint combined type hole interior protection device and method overcome the defects that in the prior art, a hole interior protection device is difficult to install, and pipe jamming and breaking phenomena happen, and have the beneficial effects that the installing in-place rate of the hole interior protection device is increased, the drainage effect of the drainage hole is guaranteed, and the service life of the hole interior protection device is prolonged.

Description

Protection device and method in deep layer slip mass deep osculum overlap joint combination type hole
Technical field
The invention belongs to the technical field of the protection of Hydraulic and Hydro-Power Engineering landslide and the field of improvement, be more specifically deep Protection device and method in layer slip mass deep osculum overlap joint combination type hole.
Background technology
Implementing osculum in gliding mass is the most widely used landslide disaster prevention means.Dredged by osculum Subsoil water its water level is greatly lowered in a short time in row's slip mass, can reach the purpose being effectively improved Landslide Stability.Mirror Having the features such as cheap, maneuverability, easy construction in osculum, osculum technology obtains in many landslide engineerings Application, and achieve preferable prevention effect, especially for the landslide engineering of caused by groundwater, its effect is more significantly.
For meeting osculum service requirement steady in a long-term, prevent sillar, hack and granule from depositing under flow action draining Kong Zhiqi lost efficacy, it is generally required to protect in osculum carries out hole.In conventional orifices, protection device is typically by multistage plastic filter pipe Or hard U-PVC drain pipe (perforate) is formed by connecting.
For deep layer slip mass (the slip mass degree of depth is more than 25m), for guaranteeing that osculum enters permeable stratum, deep osculum Hole depth or up to 30m-60m (general osculum hole depth about 10m-20m).In view of substance of landslide composition is various, geological conditions is multiple Miscellaneous, the reasons such as osculum hole depth is big, hole quality is poor, hole wall is coarse, exist during protection device practice of construction in conventional orifices Following problem:
1, protection device installation difficulty in hole, card pipe, disconnected pipe phenomenon take place frequently
(1) plastic filter pipe is become space solid netted, many by the rigid plastics strand mutual contact clinkering of diameter about 2mm The body of rod, joint length 2-4m, voidage reaches 80% 95%, its mechanical characteristics performance linear flexible object, and length is the longest, soft Property feature is the most obvious.
Practice of construction shows, plastic filter pipe is during installing propelling movement, and along with the increase of the propelling movement degree of depth, radial thrust passes Power effect substantially reduces.Owing to hole wall is coarse, hole quality is poor, under the dual function of thrust and wall drag, and filter pipe warp Often can be distorted bending at the bigger pipeline section of resistance, even present " V shape ", cause card to be run affairs therefore occur.Along with osculum Depth down, in this hole, protection device installation process difficulty is the biggest.
(2) hard U-PVC drain pipe is the hard plastic pipe with Corvic as raw material, in open circles tubulose, Wall thickness is generally 2mm-4mm.For ensureing drainage effect, need to be to front end U-PVC drain pipe pipeline section hole wall perforate, cinclides aperture is general For 10mm-15mm, spacing 3cm-5cm, blossom type interlaced arrangement.U-PVC drain pipe after perforate is commonly called as " floral tube ".
Practice of construction shows, when propelling movement fixes a drainpipe, multiple cinclides and drilling hole often occurs in front end floral tube section Wall remaining objects (such as local crowning sillar) is engaged, and owing to hole wall is coarse, hole quality is poor, and gmatjpdumamics is relatively big, often sends out Raw card pipe.
(3) if protection device pushes the phenomenon such as installation difficulty, card pipe in there is hole in actual osculum work progress, Be accomplished by repeatedly pumping adjustment, once pump dynamics control improper will cause plastic filter pipe or U-PVC drain pipe junction or Person's body self ruptures, and thus cause osculum to scrap, the series of problems such as construction speed is obstructed, economic loss.
2, water drainage poor effect, easily lost efficacy
(1) engineering practice is it has been shown that use protective measure in conventional orifices to carry out draining, draining at creep large deformation slip mass Hole drainage effect is the best.Compared to plastic filter pipe, U-PVC drain pipe material porosity is low, guide water weak effect, is difficult to Subsoil water in white-out slip mass in time.Although plastic filter pipe porosity is big, it is good to lead drainage effect, but owing to lacking outside it Loaded filter is protected, osculum running, and substantial amounts of hack and granule deposit in plastic filter pipe body so that it is gradually lose work With, cause osculum to lose efficacy.
(2) due to protection device propelling movement difficulty in hole, its fitting depth is difficult to meet design and requires hole depth, it is impossible to extend into In permeable stratum, cause drainage effect the best.On the other hand, in osculum running, in hole, protection device is not mounted to The drilling hole section of position, easily with landslide large deformation generation failure by shear, thus draining was lost efficacy, and serious curtailment its service life, led Cause later maintenance costly.
Summary of the invention
The first object of the present invention is to overcome the weak point of above-mentioned background technology, and proposes deep layer slip mass and deeply arrange Protection device in overlap joint combination type hole, water hole.
The first object of the present invention is achieved by the following technical solution: deep layer slip mass deep osculum overlap joint group Protection device in box-like hole, extend in gliding mass；It is characterized in that: it includes being positioned at the water inlet structure of the gliding mass gathering ground of front end Part, it is positioned at the water guide component in the water guide district at middle part and is positioned at the water discharge member of catchment of end；Described water inlet component includes Rigid plastics filter pipe, geotextiles, guiding cap and pipe collar, solid with pipe collar between two sections of adjacent described rigid plastics filter pipes Fixed, and with geotextiles set whole section of described rigid plastics filter pipe of bag, described geotextiles is fastened with nylon rope；At head It is cased with on the rigid plastics filter pipe of Duan Suoshu in pyramidal guiding cap, described guiding cap and described rigid plastics drainage Pipe uses Push-fit to connect；
Described water guide component is made up of hard U-PVC drain pipe and pipe collar two parts, every section of described hard U-PVC row Pipe collar is used to connect between water pipe；
Described water discharge member is made up of floral tube and geotextiles, and described geotextiles set wraps on described floral tube, and uses Nylon rope is fastened.
In technique scheme: the rigid plastics filter pipe of described water inlet member end is first with described water guide component Changeover portion between the hard U-PVC drain pipe of section uses reducing type pipe collar to connect；Described water guide component and described draining Changeover portion between component uses pipe collar to connect.
In technique scheme: described rigid plastics filter pipe uses MY type rigid plastics filter pipe；Described in every section The a length of 2-4 rice of rigid plastics filter pipe；The specification of described geotextiles is 200g/m2；The length of described guiding cap Being 30 millimeters, wall thickness is 3 millimeters；Described pipe collar uses rigid plastics, and in open circles tubulose, a length of 10 centimetres, wall thickness is 3 Millimeter.
In technique scheme: a length of 4 meters of described water discharge member, described floral tube is provided with aperture, The aperture of described aperture is 15 millimeters, and the spacing between each aperture is 5 centimetres, and in blossom type interlaced arrangement at floral tube On.
In technique scheme: the porosity of described rigid plastics filter pipe is 80%-90%；Described floral tube Porosity is less than 50%.
The second object of the present invention is achieved by the following technical solution: deep layer slip mass deep osculum overlap joint group The guard method of protection device in box-like hole, it is characterised in that: it comprises the steps；
1., boring: osculum construction before, according to construction drawing confirmation request osculum boring position, direction, aperture and Hole depth, uses auger to hole, it is ensured that bore diameter is more than protection device diameter 20 millimeters in osculum hole；
2., front end water inlet structure manufacture and installation: geotextiles set is wrapped to rigid plastics filter pipe, and twines with nylon rope Around fixing；Described rigid plastics filter pipe is directed to cap by Push-fit and is fixed on first section of described rigid plastics filter pipe Front end；Use manually or mechanically mode to push along boring direction and first section of described rigid plastics filter pipe is installed, push the degree of depth and reach During 2m-3m, by pipe collar, the rigid plastics filter pipe that the 2nd section described is connected and fixed on first section of described rigid plastics filter pipe On, and complete to push installation；By this circulation until all described rigid plastics filter pipe installations；
3., middle part water guide structure manufacture and installation: be connected the water guide component being positioned at middle part by described reducing type pipe collar First section of hard U-PVC drain pipe and front end water inlet component in the rigid plastics filter pipe of end, and use manually or mechanically side Formula pushes along boring direction and installs first section of described hard U-PVC drain pipe, when the propelling movement degree of depth reaches 2m-3m, by pipe collar by the 2nd Section drain pipe is connected and fixed on first section of hard U-PVC drain pipe, and completes to push installation, by this step cycle until latter end is arranged Water pipe installation；
4., end water discharge member makes and installs: uses punch device, arranges by 15mm aperture, 5cm spacing and blossom type Mode carries out floral tube making, is 200g/m by geotextiles 1.2. specification2Set is wrapped on floral tube 3.1, and is fastened with nylon rope； Pipe collar 1.4 is used to be connected and fixed on by floral tube 3.1 on the water guide component 2 latter end rigid plastics filter pipe of middle part, after having connected, complete Become to push installment work.
In technique scheme: be provided with aperture on described floral tube, the aperture of described aperture is 15 millimeters, often Spacing between individual aperture is 5 centimetres.
In technique scheme: the porosity of described rigid plastics filter pipe is 80%-90%；Described floral tube Porosity is less than 50%.
In technique scheme: a length of 4 meters of described water discharge member.
Present invention have the advantage that 1, treatment in accordance with local conditions, subregion is controlled it, is collected integral.
According to the hydrogeologic condition difference of deep osculum full section penetrating ground, osculum difference elevation is carried out function and divides Division, arranges protection scheme in different collection, round, the most preferred protection device component overlap assembling.
2, effectively limit plastic filter pipe flexible characteristic, reduce it and push installation difficulty, it is to avoid installation process takes place frequently and sends out The accidents such as raw card pipe, disconnected pipe, in improving hole, protection device is installed to bit rate.
3, the present invention is compared with Protection Code in complete opening plastic filter pipe hole, is substantially reduced by plastic filter pipe pipe range, reduces About 20m-40m, limit its flexible mechanical characteristics from root, thus ensure that radial thrust power transmission effect, it is to avoid pushed In journey, filter pipe is distorted bending, reduces and pushes installation difficulty, it is to avoid the accidents such as card pipe, disconnected pipe frequently occur, improves in hole Protection device is installed to bit rate, it is ensured that the progress of construction operation.
4, front end water inlet material void rate is greatly improved, it is ensured that osculum promptness and drainage effect；Hard U-PVC draining In pore, Protection Code front end floral tube voidage is less than 50%, and front end of the present invention water inlet component voidage is up to 80%-95%, is close to The former is 2 times.
5, big due to front end water inlet component voidage, subsoil water can be dredged in time to middle part and seal water guide component, and fast Import end water discharge member fastly, drain into outside slip mass eventually through end water discharge member, there is good drainage effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: water inlet component 1, rigid plastics filter pipe 1.1, geotextiles 1.2, guiding cap 1.3, pipe collar 1.4, water guide component 2, drain pipe 2.1, water discharge member 3, floral tube 3.1, aperture 3.1.1, reducing type pipe collar 4.
Detailed description of the invention
Describe the performance of the present invention below in conjunction with the accompanying drawings in detail, but they are not intended that limitation of the invention, only For example, be will become clearer from easy to understand by explanation advantages of the present invention simultaneously.
With reference to shown in Fig. 1: protection device in the present invention deep layer slip mass deep osculum overlap joint combination type hole, it is from upper Under be divided into three function divisions: wherein, in gliding mass position, water-bearing layer water content enrich, the gathering ground of good water permeability, correspond to The water inlet component 1 of the present invention；Gliding mass impermeable stratum and basement rock position water content are little, and the water guide district of bad hydraulic permeability, corresponding to this Water guide component 2 in bright device；Subdrainage hole (implementing osculum construction and the cavern of guide charge for remittance) hole week subrange Composing the catchment depositing Bedrock Crevice Water, the water discharge member 3 corresponding to protection device (is used for reducing water pressure, improves cavern's lining cutting The stability of structure).On the basis of above-mentioned functions subregion, preferably meet the protection material of its effect, and subregion for each section Segmentation carries out overlap joint combination, forms a single unit system.
The present invention deep layer slip mass deep osculum overlap joint combination type hole in protection device gathering ground, front end and water inlet structure Part 1 is made up of MY type rigid plastics filter pipe 1.1, geotextiles 1.2, guiding cap 1.3 and pipe collar 1.4 4 class A of geometric unitA, cylindrical, Body length is slightly larger than water-bearing layer thickness.Each section of MY type rigid plastics filter pipe (every segment length 2-4m) is connected, its effect by pipe collar It is that subsoil water in permeable stratum is dredged to osculum.Geotextiles specification is 200g/m2Set is wrapped in whole rigid plastics drainage On pipe 1.1, and being fastened with nylon rope, its effect is to prevent hack and granule from depositing in filter pipe body, causes osculum Lost efficacy.Guiding cap 1.3 is positioned at rigid plastics filter pipe 1.1 front end, long 30cm, wall thickness 3mm, in cone-shaped, passes through Push-fit Being connected with rigid plastics filter pipe 1.1, its effect is to reduce the propelling movement resistance between rigid plastics filter pipe 1 and hole wall.Pipe collar 1.4 materials are rigid plastics, in open circles tubulose, and long 10cm, wall thickness 3mm, it is used for connecting rigid plastics filter pipe 1.1.
In the middle part of protection device water guide district for the water guide component 2 in the present invention by drain pipe 2.1 and 1.4 liang of class A of geometric unitA of pipe collar Composition, its length is dynamically determined according to the actual osculum degree of depth.Each section of drain pipe is attached by pipe collar 1.4, pipe collar 1.4 material Matter is rigid plastics, in open circles tubulose, and wall thickness 3mm.Middle part water guide component 2 is subsoil water conduit pipe.
Protection device end catchment for the water discharge member of the present invention by floral tube 3.1 and 1.2 liang of class A of geometric unitA groups of geotextiles Become, long 4m.Being provided with the aperture 15mm of aperture 3.1.1. each aperture 3.1.1, spacing 5cm on floral tube 3.1, blossom type interlocks cloth Putting, its effect is that the subsoil water of alluvial after the subsoil water in middle part water guide component 2 and hole wall country rock or lining cutting is drained into slip mass Outward.Geotextiles 1.2 specification is 200g/m2Set is wrapped on floral tube 3.1, and is fastened with nylon rope.Described rigid plastics filter The porosity of water pipe is 80%-90%；The porosity of described floral tube is less than 50%.
Pipe collar 1.4 is all used to be attached between above three function division, wherein front end water inlet component 1 and middle part water guide Component 2 uses reducing type pipe collar to connect.
The guard method of protection device in the present invention deep layer slip mass deep osculum overlap joint combination type hole, it includes as follows Step；
1., boring: osculum construction before, according to construction drawing confirmation request osculum boring position, direction, aperture and Hole depth, uses auger to carry out auger brill and is applied to anchor cable boring more, applied to osculum boring as first.It is excellent Point occurs for can greatly reduce lock of tool drilling in boring procedure, it is ensured that Completion of Drilling Hole quality, it is ensured that bore diameter is more than draining Protection device diameter 20mm in hole, hole；
2., front end water inlet structure manufacture and installation: geotextiles 1.2 is overlapped and wraps to rigid plastics filter pipe 1.1, and use Buddhist nun Dragon rope is fastened；Described rigid plastics filter pipe 1.1 by Push-fit be directed to cap 1.3 be fixed on first section described hard Matter plastic filter pipe 1.1 front end；Use manually or mechanically mode to push along boring direction and first section of described rigid plastics filter is installed Water pipe 1.1, when the propelling movement degree of depth reaches 2m-3m, is connected and fixed on the rigid plastics filter pipe 1.1 that the 2nd section described by pipe collar 1.4 On first section of described rigid plastics filter pipe 1.1, and complete to push installation；By this circulation until all described rigid plastics are filtered Water pipe 1.1 installation；
3., middle part water guide structure manufacture and installation: be connected the water guide component being positioned at middle part by described reducing type pipe collar 4 The rigid plastics filter pipe 1.1 of end in the first section of drain pipe 2.1 of 2 and front end water inlet component 1, and use manually or mechanically mode Push along boring direction and first section of described drain pipe 2.1 is installed, when the propelling movement degree of depth reaches 2m-3m, by pipe collar 1.4 by the 2nd section of row Water pipe is connected and fixed on first section of drain pipe 2.1, and completes to push installation, by this step cycle until latter end drain pipe installs Become；
4., end water discharge member makes and installs: uses punch device, arranges by 15mm aperture, 5cm spacing and blossom type Mode carries out floral tube 3.1 and makes, and is 200g/m by geotextiles 1.2. specification2Set is wrapped on floral tube 3.1, and is wound around solid with nylon rope Fixed；Use pipe collar 1.4 to be connected and fixed on by floral tube 3.1 on the water guide component 2 latter end rigid plastics filter pipe 1.1 of middle part, connected Cheng Hou, completes to push installment work.
Being provided with aperture 3.1.1 on described floral tube 3.1, the aperture of described aperture 3.1.1 is 15 millimeters, Mei Ge little Spacing between the 3.1.1 of hole is 5 centimetres.
The porosity of described rigid plastics filter pipe 1.1 is 80%-90%；The porosity of described floral tube 3.1 is less than 50%；A length of 4 meters of described water discharge member 3.
Above-mentioned unspecified part is prior art.

Claims (9)

  1. Protection device in the deepest layer of slip mass deep osculum overlap joint combination type hole, extend in gliding mass；It is characterized in that: its bag Include the water inlet component (1) of the gliding mass gathering ground being positioned at front end, be positioned at the water guide component (2) in the water guide district at middle part and be positioned at end The water discharge member (3) of catchment；Described water inlet component (1) includes rigid plastics filter pipe (1.1), geotextiles (1.2), guides Cap (1.3) and pipe collar (1.4), fix with pipe collar (1.4) between two sections of adjacent described rigid plastics filter pipes (1.1), and With geotextiles (1.2) set whole section of described rigid plastics filter pipe (1.1) of bag, described geotextiles (1.2) twines with nylon rope Around fixing；First section of described rigid plastics filter pipe (1.1) is cased with in pyramidal guiding cap (1.3), described guiding Cap (1.3) uses Push-fit to be connected with described rigid plastics filter pipe (1.1)；
    Described water guide component (2) is made up of hard U-PVC drain pipe (2.1) and pipe collar (1.4) two parts, and every section described hard Pipe collar (1.4) is used to connect between matter U-PVC drain pipe (2.1)；
    Described water discharge member (3) is made up of floral tube (3.1) and geotextiles (1.2), and described geotextiles (1.2) set wraps in described Floral tube (3.1) on, and be fastened with nylon rope.
  2. Protection device in the deep deep osculum of layer slip mass the most according to claim 1 overlap joint combination type hole, its feature exists In: the rigid plastics filter pipe (1.1) of described water inlet component (1) end and the hard U-of first section described of water guide component (2) Changeover portion between PVC drain pipe (2.1) uses reducing type pipe collar (4) to connect；Described water guide component (2) and described draining Changeover portion between component (3) uses pipe collar (1.4) to connect.
  3. Protection device in the deep deep osculum of layer slip mass the most according to claim 1 and 2 overlap joint combination type hole, its feature It is: described rigid plastics filter pipe (1.1) uses MY type rigid plastics filter pipe；Every section of described rigid plastics filter pipe (1.1) a length of 2-4 rice；The specification of described geotextiles (1.2) is 200g/m2；Described guiding cap (1.3) a length of 30 millimeters, wall thickness is 3 millimeters；Described pipe collar (1.4) uses rigid plastics, in open circles tubulose, a length of 10 centimetres, wall thickness It it is 3 millimeters.
  4. Protection device in the deep deep osculum of layer slip mass the most according to claim 3 overlap joint combination type hole, its feature exists In: a length of 4 meters of described water discharge member (3), described floral tube (3.1) is provided with aperture (3.1.1), described is little The aperture in hole (3.1.1) is 15 millimeters, and the spacing between each aperture (3.1.1) is 5 centimetres, and exists in blossom type interlaced arrangement On floral tube (3.1).
  5. Protection device in the deep deep osculum of layer slip mass the most according to claim 4 overlap joint combination type hole, its feature exists In: the porosity of described rigid plastics filter pipe (1.1) is 80%-90%；The porosity of described floral tube (3.1) is less than 50%.
  6. 6. protect in overlapping combination type hole according to the deep deep osculum of layer slip mass described in any claim in claim 1-5 The guard method of protection unit, it is characterised in that: it comprises the steps；
    1., boring: before osculum construction, according to position, direction, aperture and the hole of the boring of construction drawing confirmation request osculum Deeply, auger is used to hole, it is ensured that bore diameter is more than protection device diameter 20 millimeters in osculum hole；
    2., front end water inlet structure manufacture and installation: geotextiles (1.2) set is wrapped to rigid plastics filter pipe (1.1), and uses Buddhist nun Dragon rope is fastened；Described rigid plastics filter pipe (1.1) is directed to cap (1.3) by Push-fit and is fixed on described in first section Rigid plastics filter pipe (1.1) front end；Use manually or mechanically mode to push along boring direction and first section of described hard is installed Plastic filter pipe (1.1), when the propelling movement degree of depth reaches 2m-3m, by pipe collar (1.4) by the 2nd section of described rigid plastics filter pipe (1.1) it is connected and fixed on first section of described rigid plastics filter pipe (1.1), and completes to push installation；By this circulation until institute There is described rigid plastics filter pipe (1.1) installation；
    3., middle part water guide structure manufacture and installation: be connected the water guide component being positioned at middle part by described reducing type pipe collar (4) (2) the rigid plastics filter pipe (1.1) of end in first section of hard U-PVC drain pipe (2.1) and front end water inlet component (1), and Use manually or mechanically mode to push along boring direction and first section of described hard U-PVC drain pipe (2.1) is installed, push the degree of depth and reach During 2m-3m, by pipe collar (1.4), the 2nd section of drain pipe is connected and fixed on first section of hard U-PVC drain pipe (2.1), and completes Push and install, by this step cycle until latter end drain pipe installation；
    4., end water discharge member makes and installs: use punch device, by 15mm aperture, 5cm spacing and blossom type arrangement Carry out floral tube (3.1) to make, be 200g/m by geotextiles 1.2. specification2Set is wrapped on floral tube 3.1, and is wound around solid with nylon rope Fixed；Use pipe collar 1.4 to be connected and fixed on by floral tube 3.1 on middle part water guide component 2 latter end rigid plastics filter pipe (1.1), connect After completing, complete to push installment work.
  7. The protection side of protection device in the deep deep osculum of layer slip mass the most according to claim 6 overlap joint combination type hole Method, it is characterised in that: being provided with aperture (3.1.1) on described floral tube (3.1), the aperture of described aperture (3.1.1) is 15 millimeters, the spacing between each aperture (3.1.1) is 5 centimetres.
  8. The protection side of protection device in the deep deep osculum of layer slip mass the most according to claim 7 overlap joint combination type hole Method, it is characterised in that: the porosity of described rigid plastics filter pipe (1.1) is 80%-90%；Described floral tube (3.1) Porosity is less than 50%.
  9. 9. according to the protection of protection device in the deep layer slip mass deep osculum overlap joint combination type hole described in claim 7 or 8 Method, it is characterised in that: a length of 4 meters of described water discharge member (3).
CN201610625876.4A 2016-08-03 2016-08-03 Protection device and method in deep layer slip mass depth osculum overlap joint combined type hole Active CN106049414B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108149697A (en) * 2017-12-29 2018-06-12 长江勘测规划设计研究有限责任公司 It is a kind of to be suitable for protective device and installation method in the facedown depth osculum hole of deformation
CN108396729A (en) * 2018-05-07 2018-08-14 长江勘测规划设计研究有限责任公司 Protective device and construction method of installation in a kind of backstroke depth osculum hole
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

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