CN106049414B - Protection device and method in deep layer slip mass depth osculum overlap joint combined type hole - Google Patents
Protection device and method in deep layer slip mass depth osculum overlap joint combined type hole Download PDFInfo
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- CN106049414B CN106049414B CN201610625876.4A CN201610625876A CN106049414B CN 106049414 B CN106049414 B CN 106049414B CN 201610625876 A CN201610625876 A CN 201610625876A CN 106049414 B CN106049414 B CN 106049414B
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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
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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
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- Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses protection device and method in deep layer slip mass depth osculum overlap joint combined type hole; water inlet component (1) includes rigid plastics filter pipe (1.1), geotextiles (1.2), guiding cap (1.3) and pipe collar (1.4); it is fixed with pipe collar (1.4) between rigid plastics filter pipe (1.1) described in adjacent two sections; and the rigid plastics filter pipe (1.1) described in whole section is wrapped with geotextiles (1.2) set, described geotextiles are fastened on (1.2) with nylon rope；It is cased with being in cone-shaped guiding cap (1.3) on the rigid plastics filter pipe (1.1) described in first section, described guiding cap (1.3) is connected with described rigid plastics filter pipe (1.1) using Push-fit；It overcomes protection device installation difficulty in prior art mesopore, the shortcomings that card pipe, disconnected pipe phenomenon, has and improves protection device in hole and be installed to bit rate, ensure water drainage effect, the advantages of increasing its service life.
Description
Technical field
It is more specifically deep the invention belongs to technical field of the Hydraulic and Hydro-Power Engineering landslide protection with administering field
Protection device and method in layer slip mass depth osculum overlap joint combined type hole.
Background technology
It is current domestic and international widely used landslide disaster prevention means to implement osculum in gliding mass.Dredged by osculum
Arrange underground water in slip mass and its water level is greatly lowered in a short time, can reach the purpose for effectively improving Landslide Stability.Mirror
There is cheap, maneuverability, easy for construction in osculum, osculum technology obtains in many landslide engineerings
Using, and preferable prevention effect is achieved, it is more notable especially for the landslide engineering of caused by groundwater, its effect.
To meet osculum service requirement steady in a long-term, prevent that sillar, hack and particle from depositing draining under flow action
Kong Zhiqi fails, and generally requires and osculum is carried out to protect in hole.Protection device is typically by multistage plastic filter pipe in conventional orifices
Or hard U-PVC drainpipes (perforate) are formed by connecting.
For deep layer slip mass (slip mass depth is more than 25m), to ensure 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
It is 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：
1st, protection device installation difficulty in hole, card pipe, disconnected pipe phenomenon take place frequently
(1) plastic filter pipe by diameter 2mm or so the mutual contact clinkering of rigid plastics strand into solid netted, more spaces
The body of rod, joint length 2-4m, for voidage up to 80% -95%, its mechanical characteristics shows linear flexible object, and length is longer, soft
Property feature is more obvious.
Practice of construction shows that plastic filter pipe is during installation pushes, and with the increase of push depth, radial thrust passes
Power positive effect reduces.Because hole wall is coarse, hole quality is poor, under thrust and the double action of wall drag, filter pipe warp
It can be often distorted bending in the larger pipeline section of resistance, or even show " V shape ", cause card to run affairs therefore occur.With osculum
Depth down, protection device installation process difficulty is also bigger in the hole.
(2) hard U-PVC drainpipes are the hard plastic pipes using Corvic as raw material, in open circles tubulose,
Wall thickness is generally 2mm-4mm., need to be general to front end U-PVC drainpipe pipeline section hole wall perforates, cinclides aperture to ensure drainage effect
For 10mm-15mm, spacing 3cm-5cm, blossom type interlaced arrangement.U-PVC drainpipes after perforate are commonly called as " floral tube ".
Practice of construction shows, when push fixes a drainpipe, multiple cinclides and drilling hole often occur in front end floral tube section
Wall remaining objects (such as local crowning sillar) are engaged, and because hole wall is coarse, hole quality is poor, and snap-in force is larger, often hair
Raw card pipe.
(3) if phenomena such as protection device pushes installation difficulty, card pipe in hole occurs in actual osculum work progress,
Just need to pump adjustment repeatedly, once pump dynamics control it is improper will cause plastic filter pipe or U-PVC drainpipes junction or
Person's body is broken itself, and thus triggers a series of problems, such as osculum is scrapped, construction speed is obstructed, economic loss.
2nd, water drainage is ineffective, easily fails
(1) engineering practice in creep large deformation slip mass using safeguard measure in conventional orifices it has been shown that carry out draining, draining
Hole drainage effect is typically bad.Compared to plastic filter pipe, U-PVC drainpipe material porositys are low, and it is poor to lead drainage effect, it is difficult to
Underground water in timely white-out slip mass.Although plastic filter pipe porosity is big, it is good to lead drainage effect, due to lacking outside it
Loaded filter is protected, osculum running, and substantial amounts of hack and particle alluvial makes it gradually lose work in plastic filter pipe body
With causing osculum to fail.
(2) due to protection device push difficulty in hole, its fitting depth is difficult to meet design requirement hole depth, can not be extend into
In permeable stratum, cause drainage effect bad.On the other hand, in osculum running, protection device is not mounted in hole
The drilling hole section of position, failure by shear easily occurs with landslide large deformation, so as to which draining is failed, its service life of serious curtailment, lead
Cause later maintenance costly.
The content of the invention
The first object of the present invention is the weak point for overcoming above-mentioned background technology, and proposes deep layer slip mass and arrange deeply
Protection device in the overlap joint combined type hole of water hole.
The first object of the present invention is achieved by the following technical solution：Deep layer slip mass depth osculum overlap joint group
Protection device in box-like hole, extend into gliding mass；It is characterized in that：It includes the water inlet structure positioned at the gliding mass gathering ground of front end
Part, the water guide component positioned at the water guide area at middle part and the water discharge member positioned at the catchment of end；Described water inlet component includes
Rigid plastics filter pipe, geotextiles, guiding cap and pipe collar, consolidated with pipe collar between the rigid plastics filter pipe described in adjacent two sections
It is fixed, and the rigid plastics filter pipe described in geotechnological whole section of cloth set bag, it is fastened in described geotextiles with nylon rope；In head
It is in cone-shaped guiding cap to be cased with Duan Suoshu rigid plastics filter pipe, described guiding cap and described rigid plastics drainage
Pipe is connected using Push-fit；
Described water guide component is made up of hard U-PVC drainpipes and pipe collar two parts, the hard U-PVC rows described in every section
Connected between water pipe using pipe collar；
Described water discharge member is made up of floral tube and geotextiles, and described geotechnological cloth set bag is used in combination on described floral tube
Nylon rope is fastened.
In the above-mentioned technical solutions：The rigid plastics filter pipe and described water guide component of described water inlet member end are first
Changeover portion between the hard U-PVC drainpipes of section is connected using reducing type pipe collar；Described water guide component and described draining
Changeover portion between component is connected using pipe collar.
In the above-mentioned technical solutions：Described rigid plastics filter pipe uses MY type rigid plastics filter pipes；Described in every section
The length of rigid plastics filter pipe be 2-4 rice；The specification of described geotextiles is 200g/m2；The length of described guiding cap
For 30 millimeters, wall thickness is 3 millimeters；Described pipe collar uses rigid plastics, and in open circles tubulose, length is 10 centimetres, wall thickness 3
Millimeter.
In the above-mentioned technical solutions：The length of described water discharge member is 4 meters, and aperture is provided with described floral tube,
The aperture of described aperture is 15 millimeters, and the spacing between each aperture is 5 centimetres, and in blossom type interlaced arrangement in floral tube
On.
In the above-mentioned technical solutions：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 depth osculum overlap joint group
The guard method of protection device in box-like hole, it is characterised in that：It comprises the following steps；
1., drilling：Before osculum construction, according to the position of construction drawing confirmation request draining hole drilling, direction, aperture and
Hole depth, drilled using auger, ensure that bore diameter is more than 20 millimeters of protection device diameter in osculum hole；
2., front end water inlet structure manufacture with installation：By on geotechnological cloth set bag to rigid plastics filter pipe, and twined with nylon rope
Around fixation；Described rigid plastics filter pipe is directed to cap by Push-fit and is fixed on rigid plastics filter pipe described in first section
Front end；The rigid plastics filter pipe installed described in first section is pushed along boring direction using manually or mechanically mode, push depth reaches
During 2m-3m, the rigid plastics filter pipe described in the 2nd section is connected and fixed on to the rigid plastics filter pipe described in first section by pipe collar
On, and complete push installation；By this circulation until all described rigid plastics filter pipe installations；
3., middle part water guide structure manufacture with installation：Water guide component by described reducing type pipe collar connection positioned at middle part
First section hard U-PVC drainpipes and front end water inlet component in end rigid plastics filter pipe, and use manually or mechanically side
Formula pushes the hard U-PVC drainpipes described in installation first section along boring direction, and push depth is when reaching 2m-3m, by pipe collar by the 2nd
Section drainpipe is connected and fixed on first section hard U-PVC drainpipes, and completes push installation, by this step cycle until latter end is arranged
Water pipe installation；
4., end water discharge member make and installation：Arranged using punch device, by 15mm apertures, 5cm spacing and blossom type
Mode carries out floral tube making, is 200g/m by geotextiles 1.2. specifications2Set is wrapped on floral tube 3.1, and is fastened with nylon rope；
Floral tube 3.1 is connected and fixed on the latter end rigid plastics filter pipe of middle part water guide component 2 using pipe collar 1.4, it is complete after the completion of connection
Into push installment work.
In the above-mentioned technical solutions：Aperture is provided with described floral tube, the aperture of described aperture is 15 millimeters, often
Spacing between individual aperture is 5 centimetres.
In the above-mentioned technical solutions：The porosity of described rigid plastics filter pipe is 80%-90%；Described floral tube
Porosity is less than 50%.
In the above-mentioned technical solutions：The length of described water discharge member is 4 meters.
The invention has the advantages that：1st, suit measures to local conditions, subregion controls it, and collection is integral.
According to the hydrogeologic condition difference of deep osculum full section penetrating ground, function point is carried out to osculum difference elevation
Division, different collection is set, protection scheme in round, finally targetedly preferred protection device component and overlaps assembling.
2nd, plastic filter pipe flexible characteristic is effectively limited, its is reduced and pushes installation difficulty, avoid the hair that taken place frequently in installation process
The accidents such as raw card pipe, disconnected pipe, improve protection device in hole and be installed to bit rate.
3rd, the present invention substantially reduces plastic filter pipe pipe range compared with Protection Code in complete opening plastic filter pipe hole, reduces
About 20m-40m, its flexible mechanical characteristics is limited from root, so as to ensure that radial thrust power transmission effect, avoid and pushed
Filter pipe is distorted bending in journey, reduces push installation difficulty, avoids that the accidents such as card pipe, disconnected pipe frequently occur, improves in hole
Protection device is installed to bit rate, ensures the progress of construction operation.
4th, front end water inlet material void rate is greatly improved, it is ensured that osculum promptness and drainage effect；Hard U-PVC drainings
Protection Code front end floral tube voidage is less than 50% in pore, and water inlet component voidage in front end of the present invention is up to 80%-95%, almost
The former is 2 times.
5th, because front end water inlet component voidage is big, underground water can in time be dredged to middle part and seal water guide component, and fast
End water discharge member is imported fastly, is drained into eventually through end water discharge member outside slip mass, and there is good drainage effect.
Brief description of the drawings
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
2nd, drainpipe 2.1, water discharge member 3, floral tube 3.1, aperture 3.1.1, reducing type pipe collar 4.
Embodiment
The performance that the invention will now be described in detail with reference to the accompanying drawings, but they do not form limitation of the invention, only
It is for example, while by illustrating that advantages of the present invention will become clearer and be readily appreciated that.
Shown in reference picture 1：Protection device in the present invention deep layer slip mass depth osculum overlap joint combined type hole, it from upper and
Under be divided into three function divisions：Wherein, water-bearing layer position water content is enriched in gliding mass, the gathering ground of good water permeability, corresponds to
The water inlet component 1 of the present invention；Gliding mass impermeable stratum and basement rock position water content are small, the water guide area of bad hydraulic permeability, corresponding to this hair
Water guide component 2 in bright device；Subdrainage hole (cavern for implementing osculum construction and guide charge for remittance) hole week subrange
The catchment of preservation Bedrock Crevice Water, (it is used to reduce water pressure, improves cavern's lining cutting corresponding to the water discharge member 3 of protection device
The stability of structure).On the basis of above-mentioned function division, the protection materials of its effect, and subregion are preferably met for each section
Segmentation carries out overlap joint combination, forms a single unit system.
The front end gathering ground of protection device and water inlet structure in the deep layer slip mass depth osculum overlap joint combined type hole of the present invention
Part 1 is made up of MY type rigid plastics filter pipe 1.1, geotextiles 1.2, guiding cap 1.3 and the class component of pipe collar 1.4 4, cylindrical,
Body length is slightly larger than water-bearing layer thickness.Each section of MY type rigid plastics filter pipe (per segment length 2-4m) is connected by pipe collar, it is acted on
It is to dredge underground water in permeable stratum to osculum.Geotextiles specification is 200g/m2Set is wrapped in whole rigid plastics drainage
On pipe 1.1, and it is fastened with nylon rope, it is to prevent hack and particle from depositing in filter pipe body that it, which is acted on, causes osculum
Failure.Guiding cap 1.3 is located at the front end of rigid plastics filter pipe 1.1, long 30 millimeters, wall thickness 3mm, in cone-shaped, by socket joint side
Formula is connected with rigid plastics filter pipe 1.1, and it is to reduce the push resistance between rigid plastics filter pipe 1.1 and hole wall that it, which is acted on,.
The material of pipe collar 1.4 is rigid plastics, in open circles tubulose, long 10cm, wall thickness 3mm, for connecting rigid plastics filter pipe 1.1.
Protection device middle part water guide area is for the water guide component 2 in the present invention by 1.4 liang of class components of drainpipe 2.1 and pipe collar
Composition, its length are dynamically determined according to actual draining hole depth.Each section of drainpipe is attached by pipe collar 1.4, the material of pipe collar 1.4
Matter is rigid plastics, in open circles tubulose, wall thickness 3mm.Middle part water guide component 2 is underground water conduit pipe.
Protection device end catchment is for water discharge member of the invention by 1.2 liang of class component groups of floral tube 3.1 and geotextiles
Into long 4m.It is provided with each aperture 3.1.1 of aperture 3.1.1. aperture 15mm, spacing 5cm on floral tube 3.1, blossom type interlocks cloth
Put, its effect is that the underground water to be deposited after the underground water in middle part water guide component 2 and hole wall country rock or lining cutting is drained into slip mass
Outside.The specification of geotextiles 1.2 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 1.1 is 80%-90%；The porosity of described floral tube is less than 50%.
It is attached between above three function division using pipe collar 1.4, wherein front end water inlet component 1 and middle part water guide
Component 2 is using the connection of reducing type pipe collar.
The guard method of protection device in the deep layer slip mass depth osculum overlap joint combined type hole of the present invention, it includes as follows
Step；
1., drilling：Before osculum construction, according to the position of construction drawing confirmation request draining hole drilling, direction, aperture and
Hole depth, auger is carried out using auger and bored more applied to anchor cables drilling, by headed by its application to draining hole drilling times.Its is excellent
Point occurs can greatly to reduce lock of tool drilling in boring procedure, it is ensured that Completion of Drilling Hole quality, ensures that bore diameter is more than draining
Protection device diameter 20mm in the hole of hole；
2., front end water inlet structure manufacture with installation：By geotextiles, 1.2 sets are wrapped to rigid plastics filter pipes 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 it is hard described in first section
The front end of matter plastic filter pipe 1.1；The rigid plastics pushed using manually or mechanically mode along boring direction described in installation first section is filtered
Water pipe 1.1, when push depth reaches 2m-3m, the rigid plastics filter pipe 1.1 described in the 2nd section is connected and fixed on by pipe collar 1.4
On rigid plastics filter pipe 1.1 described in first section, and complete push installation；By this circulation until all described rigid plastics are filtered
The installation of water pipe 1.1；
3., middle part water guide structure manufacture with installation：Water guide component by the described connection of reducing type pipe collar 4 positioned at middle part
The rigid plastics filter pipe 1.1 of end in 2 first section drainpipe 2.1 and front end water inlet component 1, and using manually or mechanically mode
The drainpipe 2.1 described in installation first section is pushed along boring direction, when push depth reaches 2m-3m, is arranged the 2nd section by pipe collar 1.4
Water pipe is connected and fixed on first section drainpipe 2.1, and completes push installation, by this step cycle until latter end drainpipe installs
Into；
4., end water discharge member make and installation：Arranged using punch device, by 15mm apertures, 5cm spacing and blossom type
Mode carries out floral tube 3.1 and made, and is 200g/m by geotextiles 1.2. specifications2Set is wrapped on floral tube 3.1, and is wound admittedly with nylon rope
It is fixed；Floral tube 3.1 is connected and fixed on the latter end rigid plastics filter pipe 1.1 of middle part water guide component 2 using pipe collar 1.4, connected
Cheng Hou, complete push installment work.
The aperture that aperture 3.1.1, described aperture 3.1.1 are provided with described floral tube 3.1 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%；The length of described water discharge member 3 is 4 meters.
Above-mentioned unspecified part is prior art.
Claims (9)
1. protection device in deep layer of slip mass depth osculum overlap joint combined type hole, extend into gliding mass；It is characterized in that：It is wrapped
Include the water inlet component (1) positioned at the gliding mass gathering ground of front end, the water guide component (2) positioned at the water guide area at middle part and 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), is oriented to
Cap (1.3) and pipe collar (1.4), it is fixed with pipe collar (1.4) between the rigid plastics filter pipe (1.1) described in adjacent two sections, and
The rigid plastics filter pipe (1.1) described in whole section is wrapped with geotextiles (1.2) set, described geotextiles are twined on (1.2) with nylon rope
Around fixation；It is in cone-shaped guiding cap (1.3) to be cased with the rigid plastics filter pipe (1.1) described in first section, described guiding
Cap (1.3) is connected with described rigid plastics filter pipe (1.1) using Push-fit；
Described water guide component (2) is made up of hard U-PVC drainpipes (2.1) and pipe collar (1.4) two parts, hard described in every section
Connected between matter U-PVC drainpipes (2.1) using pipe collar (1.4)；
Described water discharge member (3) is made up of floral tube (3.1) and geotextiles (1.2), and described geotextiles (1.2) set bag is described
Floral tube (3.1) on, and be fastened with nylon rope.
2. protection device in deep layer slip mass depth osculum overlap joint combined type hole according to claim 1, its feature exist
In：The rigid plastics filter pipe (1.1) of described water inlet component (1) end and the hard U- of described water guide component (2) first section
Changeover portion between PVC drain pipe (2.1) is connected using reducing type pipe collar (4)；Described water guide component (2) and described draining
Changeover portion between component (3) is connected using pipe collar (1.4).
3. protection device in deep layer slip mass depth osculum overlap joint combined type hole according to claim 1 or 2, its feature
It is：Described rigid plastics filter pipe (1.1) uses MY type rigid plastics filter pipes；Rigid plastics filter pipe described in every section
(1.1) length is 2-4 rice；The specification of described geotextiles (1.2) is 200g/m2；The length of described guiding cap (1.3) is
30 millimeters, wall thickness is 3 millimeters；Described pipe collar (1.4) uses rigid plastics, and in open circles tubulose, length is 10 centimetres, wall thickness
For 3 millimeters.
4. protection device in deep layer slip mass depth osculum overlap joint combined type hole according to claim 3, its feature exist
In：The length of described water discharge member (3) is 4 meters, is provided with aperture (3.1.1) on described floral tube (3.1), described is small
The aperture in hole (3.1.1) is 15 millimeters, and the spacing between each aperture (3.1.1) is 5 centimetres, and is existed in blossom type interlaced arrangement
On floral tube (3.1).
5. protection device in deep layer slip mass depth osculum overlap joint combined type hole according to claim 4, its feature exist
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. protected in the deep layer slip mass depth osculum overlap joint combined type hole according to any claim in claim 1-5
The guard method of protection unit, it is characterised in that：It comprises the following steps；
1., drilling：Before osculum construction, position, direction, aperture and hole according to construction drawing confirmation request draining hole drilling
It is deep, drilled using auger, ensure that bore diameter is more than 20 millimeters of protection device diameter in osculum hole；
2., front end water inlet structure manufacture with 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；The hard installed described in first section is pushed along boring direction using manually or mechanically mode
Plastic filter pipe (1.1), push depth is when reaching 2m-3m, by pipe collar (1.4) by the 2nd section described in rigid plastics filter pipe
(1.1) it is connected and fixed on the rigid plastics filter pipe (1.1) described in first section, and completes push installation；By this circulation until institute
There is described rigid plastics filter pipe (1.1) installation；
3., middle part water guide structure manufacture with installation：Head by reducing type pipe collar (4) connection positioned at the water guide component (2) at middle part
The rigid plastics filter pipe (1.1) of end in section hard U-PVC drainpipes (2.1) and front end water inlet component (1), and using artificial
Or mechanical system pushes the hard U-PVC drainpipes (2.1) described in installation first section along boring direction, when push depth reaches 2m-3m,
The 2nd section of drainpipe is connected and fixed on first section hard U-PVC drainpipes (2.1) by pipe collar (1.4), and completes push peace
Dress, by this step cycle until latter end drainpipe installation；
4., end water discharge member make and installation：Using punch device, by 15mm apertures, 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 with nylon rope
It is fixed；Floral tube (3.1) is connected and fixed on by middle part water guide component (2) latter end rigid plastics filter pipe (1.1) using pipe collar (1.4)
On, after the completion of connection, complete push installment work.
7. the protection side of protection device in deep layer slip mass depth osculum overlap joint combined type hole according to claim 6
Method, it is characterised in that：Aperture (3.1.1) is provided with 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 deep layer slip mass depth osculum overlap joint combined type hole according to claim 7
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. the protection of protection device in the deep layer slip mass depth osculum overlap joint combined type hole according to claim 7 or 8
Method, it is characterised in that：The length of described water discharge member (3) is 4 meters.
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| CN201610625876.4A CN106049414B (en) | 2016-08-03 | 2016-08-03 | Protection device and method in deep layer slip mass depth osculum overlap joint combined type hole |
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| CN201610625876.4A CN106049414B (en) | 2016-08-03 | 2016-08-03 | Protection device and method in deep layer slip mass depth osculum overlap joint combined type hole |
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| CN107246019B (en) * | 2017-06-30 | 2019-10-29 | 浙江大学 | A kind of slope underground water drilling self-starting drainage by suction method |
| CN108149697B (en) * | 2017-12-29 | 2023-02-14 | 长江勘测规划设计研究有限责任公司 | Installation method of protective device in depression-type deep drain hole adaptable to deformation |
| CN108396729B (en) * | 2018-05-07 | 2023-06-23 | 长江勘测规划设计研究有限责任公司 | Upward deep drainage hole protection device and installation construction method |
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| CN202969284U (en) * | 2012-11-29 | 2013-06-05 | 海南大学 | Water discharging soil nail and side slope water discharging system |
| JP6309310B2 (en) * | 2014-03-03 | 2018-04-11 | 日鐵住金建材株式会社 | Drainage pipe and its driving method |
| CN204080787U (en) * | 2014-09-19 | 2015-01-07 | 广东华路交通科技有限公司 | One is replaceable faces upward oblique drainage hole structure |
| CN204626432U (en) * | 2015-03-24 | 2015-09-09 | 中铁三局集团有限公司 | A kind of vacuum drop water hole being applicable to drift sand formation tunnel |
| CN105275001A (en) * | 2015-10-21 | 2016-01-27 | 广东华路交通科技有限公司 | Novel replaceable hard and rigid combined double-layer curved-grain net-shaped pervious pipe for slope |
| CN205894058U (en) * | 2016-08-03 | 2017-01-18 | 长江勘测规划设计研究有限责任公司 | Downthehole protection device of deep layer slip mass dark wash port overlap joint combination formula |
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2016
- 2016-08-03 CN CN201610625876.4A patent/CN106049414B/en active Active
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