CN205474898U - A water nail drainage system for railway roadbed side slope - Google Patents

Abstract

The utility model discloses a water nail drainage system for railway roadbed side slope. Water nail drainage system include by PVC pipe or PE outside of tubes wrap up in one deck capillary formula pass through bi -pass and the tee bend of water nail that the drainage area constitutes, connection water nail and collector pipe, water nail joint between two water nails of connection first, install the elbow of following closely out the water end (W. E. ) in collector pipe or water. This system has overcome that traditional drainage material easily stops up, the shortcoming of inefficiency, successfully solved catchment in the soil body, the problem of drainage. The construction method is including examination nail, laying -out, drilling, installation, connection collector pipe. The utility model discloses a putting into water through drilling in existing slope and following closely, realize all -round, overall length drainage, long -term drainage is efficient, and the construction is quick, and has the characteristic that can not take away the silt particle and prevent blocking up. And this utility model can be under construction under narrow space and railway driving condition, and construction speed is very fast, has economic benefits.

Description

A kind of water for Railway Bed Slope follows closely drainage system

Technical field

This utility model relates to the drainage system of a kind of roadbed side slope, is specifically related to a kind of for ferrum The water nail drainage system of road roadbed side slope.

Background technology

The geological disaster (landslide, avalanche, mud-rock flow, surface subsidence etc.) of Railway Bed Slope Safety and the normal operation of this lifeline engineering of railway are badly influenced.According to statistics, 99% The generation of above geological disaster is all relevant with the activity of water.Earth structure particularly side slope and Banketing after retaining wall, if a large amount of existence or in the infiltration soil body can not be got rid of quickly and effectively Water, can frequently result in landslide and retaining wall collapses.Particularly rainstorm weather, a large amount of rainwater infiltrations Burying, the process of water is more urgent, needs to drain timely and effectively, this peace to guaranteeing railway Battalion for the national games is most important.

At present, the drainage pattern of roadbed side slope is mainly gravity type draining, i.e. at conventional drainage pipe Top and side spaced openings, utilize hole to collect saturation water, the most also need to be coated with non-woven fabrics Whole drain pipe, around fills out rubble and layer of sand, and non-woven fabrics, rubble and layer of sand are as filter course. Soil particle sinks under head pressure and action of gravity and together enters in drain pipe, easily with water Cause soil erosion and blocking drain pipe, even result in surface subsidence time serious, or be deposited in filter Cause drain pipe surface drainage hole to block on layer non-woven fabrics, make the drain function of drain pipe lose Effect.Actual investigation and observation show, it is normal that the structures such as side slope, barricade and roadbed are buried underground Rule osculum, after using the longer time, mostly creates blocking and even completely loses draining Function.

Chinese invention patent " water discharge method " (patent No.: ZL97115515.1) and Chinese invention Patent " water discharge method and be used in the drain pipe of the method " (patent No.: ZL99126199.2), Its there is the problem that Railway Bed Slope conventional discharge material easily block, efficiency low, circuit Rate of traffic flow is big, and the engineering time is short, and construction space is narrow.

Utility model content

Technical problem to be solved in the utility model provides a kind of drain pipe to be not easily blocked, efficiency The high water for Railway Bed Slope follows closely drainage system.

In order to solve above-mentioned technical problem, this utility model provide for Railway Bed Slope Water nail drainage system, uses water nail joint head to connect between many water nail, many described water nails with Two-way and/or threeway, described drain pipe or described water nail outlet is used between collector pipe Place is provided with elbow.

Described water nail is wrapped up in one layer of saturating drainage belt of capillary formula outside being managed by pvc pipe or PE and is formed, The described saturating drainage belt of capillary formula is Publication No. CN1206058 China " water discharge method and use Banding drainage element in the method " disclosed in the saturating drainage belt of capillary formula, described capillary formula is saturating Moisture in roadbed can actively be sucked in it by drainage belt.

Described water nail a length of 1～2m, internal diameter is 50mm or 75mm.

Angle between described water nail and ground is 5 °～45 °.

The a length of 6cm of described water nail joint head, the internal diameter of described water nail joint head is more than described The external diameter 1～3mm of water nail, described water nail joint head mid portion inwall arranges the interior of wide 2mm Circle, described water nail joint head is arranged above ramped shaped, and the lower section of described inner ring is concordant, described Three high 3mm, the fulcrum of wide 1mm, described fulcrum and wide 2mm it is uniformly arranged above inner ring Described inner ring form room of confluxing.

Described water nail joint head installation direction determines according to the inwall water (flow) direction of described water nail, The support end of the water nail joint head described in the connection of water side of the water nail described in a upper joint, next saves institute The inner ring end of the water nail joint head described in water inlet end connection of the water nail stated.

The external diameter 1～3mm that described two-way and threeway internal diameter are followed closely more than described water.

Connect in the range of the 100mm of the described water nail at the end of the collector pipe described in connection external diameter with Pvc pipe or PE that described collector pipe is identical manage, convenient and described two-way and the peace of threeway Dress.

The initiating terminal of described water nail utilize plug that the inner tube with described water nail matches or Pipe cap blocks the inner tube of described water nail, prevents earth from entering inwall, going out of described collector pipe Water end (W.E.) is open.

Water for Railway Bed Slope provided by the utility model follows closely drainage system with traditional Drainage system is compared, and cost is low, quality controllable, can reuse；Active set water area is big And uniformly, effect of catchmenting is fast, drainage efficiency is high；Silting blocking performance is good, and service life is 30 More than Nian；Effectively conserve water and soil, environmental protection；Can effectively control to be caused by supersaturation water Geological disaster, it is ensured that the safe operation of railway.

This utility model be Chinese invention patent " water discharge method " (patent No.: And Chinese invention patent " water discharge method and be used in the drain pipe of the method " ZL97115515.1) On the basis of (patent No.: ZL99126199.2), for Railway Bed Slope conventional discharge material Easily blocking, efficiency are low, and circuit rate of traffic flow is big, and the engineering time is short, and construction space is narrow waits difficulty Topic, a kind of drainage system more with operability, implementation and environmental protection of exploitation.

This utility model is logical by water nail and collector pipe effective connection by least one threeway or two, The hydrops of different depth in side slope is carried out classification dredge, comprehensive draining targeted specifically.

Water is followed closely or the water restriction flow direction of collector pipe discharge by this utility model by elbow, in making slope While hydrops has obtained quick derivation, do not cause overland flow, wash away roadbed.

This utility model is more than outer end elevation by arranging water nail inner end elevation, becomes certain with ground Angle is to accelerate drainage rates.

The method successfully solves that circuit rate of traffic flow is big, the engineering time is short, construction space is narrow Etc. a difficult problem, accelerate the construction of Railway Bed Slope.This utility model will be by existing roadbed In side slope, water nail is inserted in boring, it is achieved comprehensive, overall length draining, and long-term drainage efficiency is high, Construction quickly, and has and will not take away silt particle and anti-blocking characteristic.

In sum, this utility model is that a kind of drain pipe is not easily blocked, efficiency is high for ferrum The water nail drainage system of road roadbed side slope.Its engineering time is short, easy construction.

Accompanying drawing explanation

Fig. 1 is many water saving nail sections interface charts in this utility model.

Fig. 2 is water nail joint head elevation in this utility model.

Fig. 3 is water nail joint head plane figure in this utility model.

Fig. 4 is this utility model optimal crosssection figure in existing side slope.

Fig. 5 is this utility model collector pipe blossom type layout drawing in existing side slope.

Fig. 6 is this utility model collector pipe network determinant layout drawing in existing side slope.

Fig. 7 is that water is followed closely with anchor pole relative to the location drawing.

In figure: 1-water is followed closely, 2-collector pipe, 3-bipass, 4-tee T, 5-water nail joint head, 6-water nail joint head inner ring, 7-water nail joint fulcrum, 8-elbow, 9-retaining wall, 10-gutter, 11-side slope, 12-anchor pole；L0-water nail segmental length, L-single water nail total length, D-water is followed closely Caliber, β-bury inclination angle, d1-vertical interval, d2-level interval underground.

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing thereof, this utility model is described in further detail, But embodiment of the present utility model is not limited to this.

See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of water staple water for Railway Bed Slope System, uses water nail joint 5 to connect between many water nails 1, many water nails 1 and collector pipe 2 Between use two-way 3 and/or threeway 4, drain pipe 2 or water are followed closely 1 water outlet and are provided with elbow (8)。

Water nail 1 is wrapped up in one layer of saturating drainage belt of capillary formula outside being managed by pvc pipe or PE and is formed, capillary The saturating drainage belt of formula is Publication No. CN1206058 China " water discharge method and be used in the method Banding drainage element " disclosed in the saturating drainage belt of capillary formula, the saturating drainage belt of capillary formula can be actively by road Moisture in base sucks in it.

Water follows closely 1 a length of 1～2m, and internal diameter is 50mm or 75mm.

Angle between water nail 1 and ground is 5 °～45 °.

The a length of 6cm of water nail joint 5, the internal diameter of water nail joint 5 is more than the external diameter of water nail 1 1～3mm, water nail joint 5 mid portion inwall arranges the inner ring 6 of wide 2mm, water nail joint 5 Being arranged above ramped shaped, the lower section of inner ring 6 is concordant, be uniformly arranged above inner ring 6 three high 3mm, The fulcrum 7 of wide 1mm, fulcrum 7 forms, with the inner ring 6 of wide 2mm, room of confluxing.

Water nail joint 5 installation direction determines according to the inwall water (flow) direction of water nail 1, a upper water saving Fulcrum 7 end of the water side connection water nail joint 5 of nail 1, the water inlet end connection of next water saving nail 1 Bear water inner ring 6 end of nail joint 5.

Two-way 3 and threeway 4 internal diameter follow closely the external diameter 1～3mm of 1 more than water.

External diameter and collector pipe 2 is connect in the range of the 100mm of the water nail 1 at the end of connection collector pipe 2 Identical pvc pipe or PE pipe, convenient and two-way 3 and the installation of threeway 4.

Plug or pipe cap that the initiating terminal utilization of water nail 1 matches with the inner tube of water nail 1 block water The inner tube of nail 1, prevents earth from entering inwall, and the water side of collector pipe 2 is open.

This offer for Railway Bed Slope water follow closely drainage system construction method, including with Lower step:

(1), the rig meeting the requirement of railway minimum safe distance is selected to incite somebody to action in the way of adding sleeve pipe Water nail is sent to desired depth, utilizes water nail joint head to connect between water nail；

(2), install water nail after, sleeve pipe is extracted；

(3), by the water of exposure follow closely and connect with collector pipe by two-way, threeway, guide current；

(4), domatic and barricade excavates groove install collector pipe, and cover；

(5), utilize collector pipe that the water of collection is drawn out to roadbed lateral sulcus, for preventing from washing away roadbed, Collector pipe terminal installs an elbow.

This utility model also includes the determination method of the design parameter of above-mentioned drainage system, mainly sets Meter parameter includes: water nail segmental length L0, water nail total length L, water are followed closely bore D, buried underground Angle of inclination beta, vertical interval d1, level interval d2.It is as follows that design parameter selectes principle:

Water nail segmental length L0: in order to reduce the resistance that water transports at capillary tube middle and long distance, carry High drainage efficiency, water nail segmental length L0 is unsuitable excessive, generally 1～2 meter.

Single water nail total length L: water nail sections, by supporting water nail joint head connection, forms single Water is followed closely.

(1) the inserting total length L and should meet claimed below simultaneously of water nail deep layer draining:

1. insert total length not less than wall high 1/2；

2. insert total length and should be not less than 2m through side slope limit sliding surface, but total length is unsuitable More than 15m；

(2) the shallow-layer draining of water nail is inserted total L length and should be exceeded the retaining walls back of the body not less than 1.5m. The diameter D of water nail sections: generally 50mm～100mm.Concrete selection diameter D, should be according to right The design requirement of water staple outlet capacity, in conjunction with other design parameters such as spacing d1, d2 and length L, And water nail supply position comprehensively determines on the market.

What water was followed closely buries angle of inclination beta underground: should be determined in conjunction with the actual ratio of slope of railway slope, specifically walk Rapid as follows:

(1) elevation of side slope water enrichment area is determined；

(2) water nail inner end elevation should be slightly larger than outer end elevation；

(3) go up most draining nail inner end elevation and determine that principle is: be the least less than the water enrichment area elevation upper limit It is not less than 50cm in 30cm or away from the domatic depth of burying.

(4) draining nail outer end elevation is descended most to determine that principle is: water nail outer end elevation should ensure that and is higher than Not less than 50cm bottom retaining wall foundation or gutter.

(5) inner end of same water nail buries the vertical of the line a little buried underground with outer end a little and horizontal plane underground Angle is it and buries inclination angle underground.Require to bury 5 °～45 ° of inclination angle underground simultaneously.Bury if can not meet If inclination angle requirement, then should adjust the bottom burial place of water nail, make inclination angle meet requirement.

Water is followed closely and is buried spacing d underground: general spacing: 2.0m～3.0m.Concrete spacing should be gone through according to locality History meteorological data, roadbed side slope and retaining structure present situation thereof, particularly water damage autumn inspection data, Lower water, gathering ground and soil mass property comprehensively determine.

Described collection drainage pipeline networks is embedded in domatic following not less than 15cm.

If roadbed side slope have employed bolt anchorage strengthening simultaneously, then water nail is preferably arranged in above anchor pole Near.

The construction method of water described in the utility model nail drainage system, still has some special wanting Ask:

(1) for ensureing that water nail outer wall is tried one's best closely connected with Rock And Soil around, for placing water nail Bore diameter is unsuitable excessive, and its bore diameter is no more than water nail joint head external diameter 5mm～10mm.

(2) two-way, threeway and elbow are wanted closely connected with the socket of collector pipe or water nail or use high-quality Waterproof material sealing off gap, leaks with waterproof.

(3) if roadbed side slope have employed bolt anchorage strengthening simultaneously, then water nail is preferably arranged in anchor Bar is near above.Meanwhile, the total length of inserting of water nail deep layer draining is not less than rock-bolt length.

Above-mentioned drainage system is applied to the most wired side slope, see Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6 and Fig. 7, uses determinant to arrange water nail drainage system.Same file water nail drainage system Design parameter: according to the water enrichment area degree of depth of side slope, uses 4 draining nails, (phase from bottom to top altogether For curb) water nail length L is respectively 10,13,12.5 and 12m and (most descends draining to follow closely Inserting retaining wall, upper three be set withs enter domatic), water nail buries angle of inclination beta underground for 5 ° upward；According to slope The detection including the tax water yield determines that water nail internal diameter D is 65mm；Soil supersaturation regional water nail spacing D2 is 2m, and soil supersaturation regional water nail spacing d2 is 2.5m, two water nail vertical intervals d1 For 2.0m.

It is embodied as step as follows:

(1) water nail engineer testing must be carried out before construction, determine facility and every technical parameter, Check into nail effect.Examination nail quantity is no less than 3；

(2) the repairerment existing drainage system in earth's surface and slope (wall) face are arranged.Close slope body existing Crack；If supporting construction such as retaining wall or side slope have the presentation of instability, special knot need to be carried out Structure Design of Reinforcement works；

(3) carrying out construction lofting according to design drawing, make water nail center, labelling is also Check；

(4) anhydrous pneumatic down-hole hammer is selected to carry out drilled dry pore-creating；

(5) should clear hole immediately installation water nail in time after water nail pore-creating completion；

(6) installation of collector pipe, after water nail installation, outer end and collector pipe by collector pipe, Two-way, threeway connection, wherein two-way, threeway and elbow are close with the socket that collector pipe or water are followed closely Patch or with high-quality waterproof material sealing off gap；

(7) at the Wai Huoqiang out outlet, slope that drain pipe and orlop water are followed closely, installation is curved Head, prevents that current are excessive washes away roadbed.

Above-mentioned drainage system can also be applied to the most wired side slope by this utility model, see Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 7, use blossom type to arrange water nail drainage system.

By above site observation result it can be seen that water described in the utility model nail drainage system exists In drainage procedure, having certain impurity when starting draining in water outlet, this partial impurities is drilling hole The earth of interior residual；After current take away residue, water quality becomes clear, illustrates that draining will not be taken away Silt in slope, thus do not result in slope body and sink to subsiding.Draining is known by irregular observed result Measure considerable, illustrate that drainage efficiency is high；The most wired slope body is administered without big excavation, saves Construction cost, on normal driving without impact；Service life is long；Easy to operation.And should Utility model can be constructed under the conditions of narrow space and railways train operation, and speed of application is very fast, pole Tool economic benefit.

The explanation more than carried out for specific embodiment of the utility model, according to above-mentioned enforcement, just Drainage system provided by the utility model can be realized well.What deserves to be explained is, for solving Same technical problem, even if some made on the basis of this utility model change without substantial Moving or polishing, the essence of the technical scheme used is still as this utility model, therefore it is also Should be considered as belonging in the protection domain that this case is encompassed, special explanation at this.

Claims (9)

1. the water nail drainage system for Railway Bed Slope, it is characterized in that: between many water nail (1), use water nail joint head (5) to connect, use two-way (3) and/or threeway (4), described drain pipe (2) or described water nail (1) water outlet that elbow (8) is installed between many described water nail (1) and collector pipe (2).

Water for Railway Bed Slope the most according to claim 1 follows closely drainage system, it is characterized in that: described water nail (1) is wrapped up in one layer of saturating drainage belt of capillary formula outside being managed by pvc pipe or PE and formed, and the moisture in roadbed can actively be sucked in it by the described saturating drainage belt of capillary formula.

Water for Railway Bed Slope the most according to claim 1 and 2 follows closely drainage system, it is characterised in that: described water nail (1) a length of 1～2m, internal diameter is 50mm or 75mm.

Water for Railway Bed Slope the most according to claim 1 and 2 follows closely drainage system, it is characterised in that: the angle between described water nail (1) and ground is 5 °～45 °.

Water for Railway Bed Slope the most according to claim 1 and 2 follows closely drainage system, it is characterized in that: a length of 6cm of described water nail joint head (5), the internal diameter of described water nail joint head (5) is more than the external diameter 1～3mm of described water nail (1), described water nail joint head (5) mid portion inwall arranges the inner ring (6) of wide 2mm, described water nail joint head (5) is arranged above ramped shaped, the lower section of described inner ring (6) is concordant, described inner ring (6) top is uniformly arranged three high 3mm, the fulcrum (7) of wide 1mm, described fulcrum (7) forms, with the described inner ring (6) of wide 2mm, room of confluxing.

Water for Railway Bed Slope the most according to claim 5 follows closely drainage system, it is characterized in that: described water nail joint head (5) installation direction determines according to the inwall water (flow) direction of described water nail (1), fulcrum (7) end of water nail joint head (5) described in the connection of water side of water nail (1) described in a upper joint, inner ring (6) end of water nail joint head (5) described in water inlet end connection of next water nail (1) described in joint.

Water for Railway Bed Slope the most according to claim 1 and 2 follows closely drainage system, it is characterised in that: described two-way (3) and threeway (4) internal diameter follow closely the external diameter 1～3mm of (1) more than described water.

Water for Railway Bed Slope the most according to claim 1 and 2 follows closely drainage system, it is characterized in that: in the range of the 100mm of described water nail (1) at the end of the collector pipe (2) described in connection, connect the external diameter pvc pipe identical with described collector pipe (2) or PE pipe, convenient and described two-way (3) and the installation of threeway (4).

Water for Railway Bed Slope the most according to claim 1 and 2 follows closely drainage system, it is characterized in that: the initiating terminal of described water nail (1) utilizes the plug matched with the inner tube of described water nail (1) or pipe cap to block the inner tube of described water nail (1), preventing earth from entering inwall, the water side of described collector pipe (2) is open.