CN204225069U - Bank protection work unfavorable geology shallow underground drainage system - Google Patents

Bank protection work unfavorable geology shallow underground drainage system Download PDF

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Publication number
CN204225069U
CN204225069U CN201420579171.XU CN201420579171U CN204225069U CN 204225069 U CN204225069 U CN 204225069U CN 201420579171 U CN201420579171 U CN 201420579171U CN 204225069 U CN204225069 U CN 204225069U
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Prior art keywords
drainage system
drain
french drain
shallow underground
slope
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CN201420579171.XU
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Inventor
黄成涛
柴华峰
童凡
黄召彪
李明
曾庆云
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Changjiang Waterway Planning Design and Research Institute
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Changjiang Waterway Planning Design and Research Institute
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Abstract

The utility model provides a kind of bank protection work unfavorable geology shallow underground drainage system, comprise lower leaf and be arranged at domatic open fire drainage system and shallow underground drainage system, shallow underground drainage system and open fire drainage system shift to install, shallow underground drainage system comprises multiple equally distributed french drain, described french drain pushes up low water platform from slope be inverted Y-shaped setting, open fire drainage system comprises and being interconnected and vertically disposed open drain and intercepting drain, described intercepting drain is arranged at top, slope along water front direction, open drain be arranged at slope top with low water platform between domatic, domatic surface is disposed with anti-filter bed course and ground surface protection structure from bottom to up, french drain is arranged in encryption, french drain cross section is inverted trapezoidal, french drain inner bottom surface and both sides are all equipped with non-woven fabrics, in french drain, backfill has fist stone.After the utility model improves engineering construction, bank slope is to the drainability of phreatic water, strengthens the stability of bank slope.

Description

Bank protection work unfavorable geology shallow underground drainage system
Technical field
The utility model belongs to river regulation technical field, is specifically related to a kind of bank protection work unfavorable geology shallow underground drainage system.
Background technology
Bank protection work is engineering measure common in river controlling projects, at present the shore protection pattern adopting ramp type more, and its land bank protection mainly comprises french drain, anti-filter bed course, ground surface protection structure, intercepting drain and open drain etc.Slope protection works generally comprises row's open fire and row's phreatic water two overlaps drainage system, row's open fire mainly realizes by intercepting drain and open drain, row's phreatic water mainly realizes by french drain, anti-filter bed course and ground surface protection structure, the effect of row's phreatic water is mainly in order to discharge the shallow-layer ponding in bank slope soil fast, to reduce the water pressure of bank slope, prevent Slope Failure.For the good bank slope of geological conditions, french drain generally from slope top to toe be inverted Y-shaped layout, spacing 10m, sectional form is generally rectangle, and cross dimensions is 40cm × 40cm × 50cm (top width × bottom width × ditch depth), then filling rubble; Anti-filter bed course is general lays the thick yellow sand of 10cm, non-woven fabrics and the thick rubble of 10cm from the bottom to top respectively; Mask can adopt the various structures such as concrete six square, placed rockfill.
Basin, the middle and lower reach of Yangtze River mostly is alluviation type Plain, and existing geological exploration data shows, bank protection work region is many to be made up of fine sand, Extra-fine sand, clay and silty clay, and above-mentioned shallow-layer drainage system can meet drainage requirement preferably.But seashore is due to architectonic reason, local water front is often containing thicker Muddy Bottoms interlayer, for this harm geological structure, common structure is difficult to carry out and cannot meets drainage requirement after implementing, the situation such as occur domatic bulge and subside, therefore, need improve the shallow underground drainage system of unfavorable geology bank slope.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of bank protection work unfavorable geology shallow underground drainage system, and after effectively improving engineering construction, bank slope is to the drainability of phreatic water, strengthens the stability of bank slope.
The utility model provides a kind of bank protection work unfavorable geology shallow underground drainage system, comprise lower leaf and be arranged at domatic open fire drainage system and shallow underground drainage system, shallow underground drainage system and open fire drainage system shift to install, shallow underground drainage system comprises multiple equally distributed french drain, described french drain pushes up low water platform from slope be inverted Y-shaped setting, spacing is provided with between the top of adjacent french drain, the two ends, bottom of adjacent french drain are connected and are communicated with the pin groove of low water platform, open fire drainage system comprises and being interconnected and vertically disposed open drain and intercepting drain, described intercepting drain is arranged at top, slope along water front direction, open drain be arranged at slope top with low water platform between domatic, domatic surface is disposed with anti-filter bed course and ground surface protection structure from bottom to up, french drain is arranged in encryption, french drain cross section is inverted trapezoidal, french drain inner bottom surface and both sides are all equipped with non-woven fabrics, in french drain, backfill has fist stone, domatic changing between adjacent french drain is filled with block stone, change bottom french drain and between mud and be filled with block stone.
Described anti-filter bed course is equipped with yellow sand and non-woven fabrics from the bottom to top.
Described ground surface protection structure is equipped with steel wire grid or revetment brick or dry stone wall, has better water permeability.
Described french drain cross section is that 1m is dark, the inverted trapezoidal of top width 1m, bottom width 0.8m.5m is spaced apart between described adjacent french drain.In described french drain, fist stone particle diameter is 5-20cm, arranges french drain by encryption, and increases cross dimensions and the interior particle diameter of filling building stones of ditch of french drain, to improve the drainability of bank slope.
The utility model can before construction first original domatic on excavate shallow-layer gutter, again mud is changed after discharging domatic superficial water and fill out, solve work progress middle-shallow layer underdrainage problem, the velocity of discharge of superficial water can be accelerated, change and fill out and adopt the large french drain in the utility model to enhance the stability of bank slope, avoid in bank slope digging process and occur landslide, be conducive to the construction of bank slope.The utility model carries out block stone to mud and changes and fill out, and increases domatic stability.The utility model adds french drain section area by french drain cross section is set to inverted trapezoidal, inserts the larger fist stone of particle diameter, further increase drainage area at french drain, and the french drain of inverted trapezoidal can be avoided domaticly occurring that bulge is subsided.French drain of the present utility model adopts encryption to arrange, and effectively increases drainage channel.Prior art compared by ground surface protection structure of the present utility model, and water permeability is better.Owing to increasing the drainage area of shallow seated groundwater and domatic for permeable structure, after flood, the utility model can accelerate the discharge of bank slope shallow seated groundwater the water-break phase, alleviate the water pressure of bank slope, avoid phenomenons such as occurring bulge, be partially recessed, ensure that stability and the globality of bank slope.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation
Fig. 2 is french drain schematic cross-section of the present utility model
Fig. 3 is for there being french drain place bank slope section
Fig. 4 is without french drain place bank slope section
Wherein, 1-slope is pushed up, and 2-low water platform, 3-is domatic, 4-french drain, 41-fist stone, 42-non-woven fabrics, 5-intercepting drain, 6-open drain, 7-anti-filter bed course, 8-ground surface protection structure, 9-mud, 91-block stone.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail:
The utility model provides a kind of bank protection work unfavorable geology shallow underground drainage system, comprise open fire drainage system and shallow underground drainage system that lower leaf is arranged at domatic 3, shallow underground drainage system and open fire drainage system shift to install, shallow underground drainage system comprises multiple equally distributed french drain 4, described french drain 4 is inverted Y-shaped setting from top, slope 1 to low water platform 2, open fire drainage system comprises and being interconnected and vertically disposed open drain 6 and intercepting drain 5, described intercepting drain 5 is arranged at top, slope 1 along water front direction, open drain 6 is arranged between top, slope 1 and low water platform 2 domatic 3, domatic 3 surfaces are disposed with anti-filter bed course 7 and ground surface protection structure 8 from bottom to up, french drain 4 is arranged in encryption, french drain 4 cross section is inverted trapezoidal, french drain 4 inner bottom surface and both sides are all equipped with non-woven fabrics 42, in french drain 4, backfill has fist stone 41, domatic changing between adjacent french drain is filled with block stone 91, change bottom french drain and between mud 9 and be filled with block stone 91.Anti-filter bed course 7 comprises yellow sand and non-woven fabrics 42.Ground surface protection structure 8 is equipped with steel wire grid or revetment brick or dry stone wall.French drain 4 cross section is that 1m is dark, top width 1m, bottom width 0.8m trapezoidal.5m is spaced apart between adjacent french drain 4.In french drain 4, fist stone 41 particle diameter is 5-20cm.
As shown in Figure 1, intercepting drain 5 is arranged at top, slope 1 along water front, and open drain 6 is vertical with intercepting drain 5 and be communicated with.The one end in open drain 6 is communicated with intercepting drain 5, and the other end is connected with the surface layer of low water platform 2.Intercepting drain 5 matches with open drain 6 and forms the flow channel of surface water.Evenly be provided with the french drain 4 of multiple inverted Y-shaped distribution on domatic 3, the top of french drain 4 is positioned at top, slope 1, and the bottom of french drain 4 is positioned at low water platform 2.The top spacing of adjacent french drain 4 is 5m, and the two ends, bottom of adjacent french drain 4 are connected and are communicated with the pin groove of low water platform 2.The bottom of open drain 6 and french drain 4 is crossing on facade, and in plane, open drain 6 is above french drain 4.French drain 4 and disjoint position, open drain 6, after french drain 4 is shaping domatic 3 repair after to dig down 70cm build open drain 6; For the position of intersecting, french drain 4 will dig downwards deeply in original design basis.
As in Figure 2-4, french drain 4 cross section be that 1m is dark, top width 1m, bottom width 0.8m trapezoidal.Non-woven fabrics 42 is arranged at the surface of both sides wall body and bottom surface in french drain 4.The fist stone 41 that particle diameter is 5-20cm is filled with in french drain 4.The port of french drain 4 is coated with yellow sand bed course, non-woven fabrics (draining pad) and revetment brick that thickness is 10cm successively.French drain 4 draining cross section in the utility model is large, and the fist stone 41 larger with particle diameter replaces rubble of the prior art, makes drainage efficiency higher.Change after mud 9 excavation of french drain 4 both sides and be filled with block stone 91, strengthen slope stability further.
Work progress of the present utility model is as follows: when mud very serious (thickness is greater than 50cm), and when machinery can not be adopted to carry out bank slope excavation, elder generation is artificial excavates shallow-layer gutter along domatic 3 on the direction of vertical bank slope, discharges the shallow seated groundwater of domatic 3; After significantly shallow (table) layer water does not ooze out, excavate according to the slope comparison domatic 3 of design, adopt the mode of paving stone to change mud and fill out, first under mud place, dig 50cm, remove mud 9 and insert block stone 91, to increase the stability of bank slope.In implementation process, according to the sequence of construction of being pushed up 1 by toe to slope, after bank slope bottom is basicly stable, then bank protection top should be implemented; After the basic basic forming of bank slope, bank slope excavates weeper drain 4, french drain 4 is encrypted to 5m mono-, and french drain 4 sectional dimension is that 1m is dark, the inverted trapezoidal of top width 1m, bottom width 0.8m, adopts the fist stone 41 of particle diameter 5 ~ 20cm to backfill in french drain 4.Should excavate french drain 4 in time after bank slope is shaping, in the implementation process of french drain 4, answer excavation limit, segmentation limit to fill, backfill fist stone 41 keeps the shape of french drain 4 and accelerates drainage speed in time, to be conducive to the discharge of underground shallow layer water and to have excavated the stable of bank slope;
After large-sized french drain 4 has been constructed, carry out excavation open fire drainage system, on top, slope 1 along water front direction excavation intercepting drain 5, then excavate an open drain 6 along the every 100m of domatic 3 vertical direction, described open drain 6 is communicated with intercepting drain 5;
After above-mentioned construction completes, can carry out the construction of loaded filter 7 and domatic 3, the ground surface protection structure of domatic 3 should select the structure of good water permeability, as steel wire grid, revetment brick and dry stone wall etc., the structure of bad hydraulic permeability should not be selected, as structures such as concrete six square, cast-in-situ concretes.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
The content be not described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.

Claims (5)

1. a bank protection work unfavorable geology shallow underground drainage system, comprise lower leaf and be arranged at domatic open fire drainage system and shallow underground drainage system, shallow underground drainage system and open fire drainage system shift to install, shallow underground drainage system comprises multiple equally distributed french drain, described french drain pushes up low water platform from slope be inverted Y-shaped setting, open fire drainage system comprises and being interconnected and vertically disposed open drain and intercepting drain, described intercepting drain is arranged at top, slope along water front direction, open drain be arranged at slope top with low water platform between domatic, domatic surface is disposed with anti-filter bed course and ground surface protection structure from bottom to up, it is characterized in that being provided with spacing between adjacent french drain top, the two ends, bottom of adjacent french drain are connected and are communicated with the pin groove of low water platform, french drain cross section is inverted trapezoidal, french drain inner bottom surface and both sides are all equipped with non-woven fabrics, in french drain, backfill has fist stone, domatic changing between adjacent french drain is filled with block stone, change bottom french drain and between mud and be filled with block stone.
2. bank protection work unfavorable geology shallow underground drainage system according to claim 1, is characterized in that ground surface protection structure is equipped with steel wire grid or revetment brick or dry stone wall.
3. bank protection work unfavorable geology shallow underground drainage system according to claim 1, is characterized in that french drain cross section is that 1m is dark, the inverted trapezoidal of top width 1m, bottom width 0.8m.
4. bank protection work unfavorable geology shallow underground drainage system according to claim 1, is characterized in that being spaced apart 5m between adjacent french drain.
5. bank protection work unfavorable geology shallow underground drainage system according to claim 1, is characterized in that in french drain, fist stone particle diameter is 5-20cm.
CN201420579171.XU 2014-09-30 2014-09-30 Bank protection work unfavorable geology shallow underground drainage system Active CN204225069U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105032912A (en) * 2015-07-17 2015-11-11 中国科学院武汉岩土力学研究所 In-situ repair method for shallow-buried heavy metal pollution site
CN106134556A (en) * 2016-08-30 2016-11-23 扬州大学 Control row in runoff nitrogen phosphorus lattice field, rice field intercepts removal system and application process thereof with farmland diafiltration combination
CN106348379A (en) * 2016-08-30 2017-01-25 扬州大学 Nitrogen and phosphorus infiltration interception system combined with plough pan's paddy field straw shaft and double layered horizontal drainage and its application method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105032912A (en) * 2015-07-17 2015-11-11 中国科学院武汉岩土力学研究所 In-situ repair method for shallow-buried heavy metal pollution site
CN106134556A (en) * 2016-08-30 2016-11-23 扬州大学 Control row in runoff nitrogen phosphorus lattice field, rice field intercepts removal system and application process thereof with farmland diafiltration combination
CN106348379A (en) * 2016-08-30 2017-01-25 扬州大学 Nitrogen and phosphorus infiltration interception system combined with plough pan's paddy field straw shaft and double layered horizontal drainage and its application method
CN106134556B (en) * 2016-08-30 2018-03-23 扬州大学 Control row in rice field runoff nitrogen phosphorus lattice field combines with farmland diafiltration and intercepts removal system and its application process
CN106348379B (en) * 2016-08-30 2019-05-07 扬州大学 There is plough sole rice field stalk vertical shaft to be combined nitrogen phosphorus diafiltration intercepting system and its application method with double-layer horizontal draining

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