CN201372430Y - Horizontal drainage system applying plastic drainage plate on slit weak soil groundsill - Google Patents
Horizontal drainage system applying plastic drainage plate on slit weak soil groundsill Download PDFInfo
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- CN201372430Y CN201372430Y CN200920300419U CN200920300419U CN201372430Y CN 201372430 Y CN201372430 Y CN 201372430Y CN 200920300419 U CN200920300419 U CN 200920300419U CN 200920300419 U CN200920300419 U CN 200920300419U CN 201372430 Y CN201372430 Y CN 201372430Y
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- horizontal
- draining board
- plastic draining
- plastic drainage
- groundsill
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Abstract
A horizontal drainage system applying plastic drainage plate on slit weak soil groundsill is provided. Gutters are arranged around the slit weak soil groundsill which is covered by a fine sand layer above. Vertical plastic drainage plates are inserted at interval from the fine sand layer to the slit weak soil groundsill. Upper portions of the vertical plastic drainage plates are folded and paved over the fine sand layer. Horizontal plastic drainage plates are fixedly connected to the folded portion of the vertical plastic drainage plates. The horizontal plastic drainage plates comprise zonal horizontal plastic drainage plates and warp-wise horizontal plastic drainage plates. The zonal horizontal plastic drainage plates are arranged along length direction of the groundsill at interval and press ground folding portion of each vertical plastic drainage plate. Both ends of the zonal horizontal plastic drainage plates extend to the gutter around the slit weak soil groundsill; there are at least two warp-wise horizontal plastic drainage plates which are parallel to length direction of the groundsill to press the zonal horizontal plastic drainage plates. The utility model solves the problem that it is complex and fussy for drainage construction on the slit weak soil groundsill which is high in cost and has no assurance on construction progress.
Description
Technical field
The utility model relates to the drainage system of a kind of drainage system of ground, particularly a kind of mud soft soil foundation.
Background technology
Usually in the treatment of soft foundation process, the drainage blanket of horizontal direction employing level prepares, mud content is low, satisfactory coarse sands layer, but in the thick area of weak soil layer depth, be silt soil region by it, satisfactory coarse sand resource is very deficient, can't gather materials on the spot, must seek suitable material from afar, so the price height, supply of material quality and quantity instability, normally mud content exceeds standard, drainage effect is bad, influences the fixed and settling rate of underground soil, is difficult to satisfy schedule requirement.In addition, it is complicated loaded down with trivial details that this traditional handicraft implements, and operating personnel must pass through strict training, and can't finish training and on duty at short notice, therefore need introduce the professional technique workman from the other places.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of mud soft soil foundation to use the horizontal drainage system of plastic draining board, solve drainage blanket cost height, the unwarranted problem of construction speed in the thick area of weak soil layer depth; And the complicated loaded down with trivial details problem of the construction technology that solves traditional drainage blanket.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of horizontal drainage system of mud soft soil foundation, the arranged around of mud soft soil foundation has the gutter, it is characterized in that:
Be covered with the layer of fine sand layer above the mud soft soil foundation, to mud soft soil foundation, be inserted with the vertical plastic band drain from fine sand layer downwards at interval, the equilateral triangle that is distributed as of described vertical plastic band drain is arranged, its top is folding, level is laid on above the fine sand layer, fixedly connected horizontal plastic draining board on the folded part of vertical plastic band drain.
Horizontal plastic draining board comprises horizontal plastic draining board of broadwise and the horizontal plastic draining board of warp-wise, the horizontal plastic draining board of described broadwise is arranged at interval along the ground length direction, and push down the ground folded part of each vertical plastic band drain, its two ends stretch in the mud soft soil foundation gutter on every side; The horizontal plastic draining board of described warp-wise is at least two, and is parallel with the ground length direction, pushes down the horizontal plastic draining board of broadwise.
Described vertical plastic band drain has four rows at least, and adjacent two rows' top doubling is in opposite directions pushed down by a horizontal plastic draining board of broadwise above the folded part of per two row's vertical plastic band drains.
The thickness of described fine sand layer can be 50～60cm.
Spacing between the described vertical plastic band drain can be 1～3m, and the spacing between the horizontal plastic draining board of broadwise can be 1～3m.
The beneficial effects of the utility model are as follows:
The utility model belongs to the horizontal drainage measure of mud matter treatment of soft foundation, compare with the drainage system of traditional soft foundation, problems such as difficulty take place slowly, load in material scarcity, quality instability, the consolidation settlement that the utility model has fully solved horizontal drainage layer in the treatment of soft foundation process, accelerate construction speed greatly, and saved cost.
It is simple and convenient that the utility model implements, and operating personnel are suitable for training, can finish training and on duty at short notice, can solve the labour in the locality, need not to introduce the professional technique workman.According to practical application in engineering and observation, in the zone of having used plastic draining board SBD, the rate of settling is preferably arranged in the preloading process, this explanation plastic draining board SBD has horizontal drainage effect preferably, can satisfy the construction needs fully.In highway, railway, tunnel, subway, water transport, water conservancy and hydropower, airport, wharf structure, engineering such as reclaim land from the sea.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic diagram of the utility model drainage construction step a.
Fig. 2 is the schematic diagram that the utility model drainage construction step b inserts first row's vertical plastic band drain.
Fig. 3 is the schematic diagram that the utility model drainage construction step b inserts second row's vertical plastic band drain.
Fig. 4 is the schematic diagram that the utility model drainage construction step b inserts the 3rd row's vertical plastic band drain.
Fig. 5 is the schematic diagram that the utility model drainage construction step b inserts the 4th row's vertical plastic band drain.
Fig. 6 is the schematic diagram of the vertical plastic band drain of the folding even rows of the utility model drainage construction step c.
Fig. 7 is the schematic diagram of the folding odd number row's of the utility model drainage construction step c vertical plastic band drain.
Fig. 8 is a schematic diagram of laying the horizontal plastic draining board of broadwise in the utility model drainage construction steps d.
Fig. 9 is the structural representation that clenches vertical plastic band drain and the horizontal plastic draining board of broadwise among the utility model drainage construction step e.
Figure 10 is the utility model drainage construction step f schematic diagram.
Figure 11 is the utility model drainage construction step g schematic diagram.
Figure 12 is the utility model drainage construction step h schematic diagram.
Figure 13 is the vertical section structure schematic diagram of the utility model mud soft soil foundation horizontal drainage system.
Figure 14 is the layout schematic diagram of the utility model mud soft soil foundation horizontal drainage system.
Figure 15 is the schematic perspective view of the utility model mud soft soil foundation horizontal drainage system.
Figure 16 is the perspective view of plastic draining board.
Reference numeral: 1-mud soft soil foundation, 2-fine sand layer, 3-vertical plastic band drain, the horizontal plastic draining board of 4-broadwise, the horizontal plastic draining board of 5-warp-wise, 6-roadbed material floor, 7-back-pressure district roadbed, 8-gutter, 9-filter membrane, 10-central layer.
The specific embodiment
Embodiment is referring to shown in Figure 13-15, this mud soft soil foundation is used the horizontal drainage system of plastic draining board, the arranged around of mud soft soil foundation has gutter 8, be covered with layer of fine sand layer 2 above the mud soft soil foundation 1, the thickness of fine sand layer 2 is 50～60cm, to mud soft soil foundation 1, be inserted with vertical plastic band drain 3 from fine sand layer 2 downwards at interval, the equilateral triangle that is distributed as of described vertical plastic band drain 3 is arranged, its top is folding, level is laid on above the fine sand layer 2, fixedly connected horizontal plastic draining board on the folded part of vertical plastic band drain 3.
Horizontal plastic draining board comprises horizontal plastic draining board 4 of broadwise and the horizontal plastic draining board 5 of warp-wise, the horizontal plastic draining board 4 of described broadwise is arranged at interval along the ground length direction, and push down the ground folded part of each vertical plastic band drain, its two ends stretch in the mud soft soil foundation gutter 8 on every side; The horizontal plastic draining board 5 of described warp-wise is at least two, and is parallel with the ground length direction, pushes down the horizontal plastic draining board 4 of broadwise.
Described vertical plastic band drain 3 has four rows at least, and adjacent two rows' top doubling is in opposite directions pushed down by a horizontal plastic draining board 4 of broadwise above the folded part of per two row's vertical plastic band drains 3.Spacing between the described vertical plastic band drain 3 is 1～3m, and the spacing between the horizontal plastic draining board of broadwise is 1～3m.
Referring to Figure 16, horizontal plastic draining board is called for short SBD, is made up of central layer 10 and the filter membrane 9 that wraps in the central layer outside.The vertical plastic band drain is called for short PVD.
Referring to Fig. 1-12, above-mentioned mud soft soil foundation is used the drainage and construction method of the horizontal drainage system of plastic draining board, and its construction sequence is as follows:
Referring to Fig. 1, a, mud soft soil foundation 1 is carried out land clearing, land clearing such as conventional method, main foreign material, the organic matter removed, as grass, tree root, rubbish etc., can with bulldozer or excavator large-area foreign material be removed earlier, again the regional area that can't finish by artificial removing machinery.At the mud soft soil foundation 1 upper berth fine sand layer of clearing up 2, thickness can be generally shop 50 to the thick fine sand layer of 60CM according to the actual conditions adjustment, and material will meet the roadbed material requirement, and installation apparatus can be selected according to on-site actual situations.
Referring to Fig. 2-5, b, on fine sand layer 2, insert at interval evenly vertical plastic band drain 3, expose on the fine sand layer 2 on the top of vertical plastic band drain.To make the width of vertical plastic band drain 3 identical during insertion,, influence the drainage effect of vertical plastic band drain in order to avoid fold twice vertical plastic band drain 3 with the direction of width of subgrade.Also will be during insertion according to the position of plastic draining board SBD, the length of keeping somewhere vertical plastic band drain PVD, in the present embodiment, vertical plastic draining board indwelling length is 1.13/2+0.15=0.715 rice under the main road, and place, back-pressure district vertical plastic band drain is kept somewhere length and also is 0.715 meter.
Referring to Fig. 6-8, c, horizontal folding is carried out on the top of vertical plastic band drain.D, the horizontal plastic draining board of broadwise 4 pressed be layered on the folded part of vertical plastic band drain, the length of the horizontal plastic draining board 4 of broadwise will be longer than the width of ground.It is folded toward to be about to two adjacent row's vertical plastic band drains 3, and then horizontal plastic draining board 4 pressures of broadwise are layered on the folded part of vertical plastic band drain.Wherein the length of the horizontal plastic draining board 4 of broadwise will be longer than at least 2 meters of the width of roadbed, so that underground water can flow out smoothly, is unlikelyly stopped up drainage channel by earth.Wherein every installation four row's vertical plastic band drains 3 just carry out once foldingly, and then the horizontal plastic draining board 4 of broadwise are layered on the vertical plastic band drain 3 that this four row folded, and can roll over even rows earlier when folding, roll over odd number row again.
Referring to Fig. 9, e, horizontal plastic draining board of broadwise 4 and vertical plastic band drain 3 are clenched; For guaranteeing that the water among the vertical plastic band drain PVD can be continuously by plastic draining board SBD discharge, the vertical plastic band drain will clench with plastic draining board, can adopt the large size stapler to connect plastic draining board and vertical plastic band drain.
Referring to Figure 10, f, the horizontal plastic draining board 5 of warp-wise is layered on the horizontal plastic draining board 4 of broadwise, the horizontal plastic draining board 4 of warp-wise is clenched with the horizontal plastic draining board 5 of broadwise; The folded part of described vertical plastic band drain, the horizontal plastic draining board 4 of broadwise and the horizontal plastic draining board 5 of warp-wise can once clench or clench at twice.
Referring to Figure 11, g, on drainage system, lay off-the-shelf roadbed material layer 6, form roadbed; Lay direction with plastic draining board SBD, can be ready to material in advance, finish by bulldozer again.Described roadbed is made up of roadbed material floor 6 and the back-pressure district roadbed 7 that is positioned at roadbed material floor 6 both sides, and the spacing between the vertical plastic band drain of described roadbed material floor 6 below is less than the spacing between the vertical plastic band drain of roadbed 7 belows, back-pressure district.
Referring to Figure 12, the outfall of h, the horizontal plastic draining board 4 of adjustment broadwise stretches in the gutter 8 of roadbed both sides the horizontal plastic draining board of broadwise.
The former length of plastic draining board SBD generally is 50 meter one volume, so need carry out SBD connects in some position, especially in the vertical, its concrete method of attachment, promptly an openning is severed along its length with the filter membrane 9 of the afterbody of first volume SBD by elder generation, do not have the central layer of the SBD of filter membrane to insert the into afterbody of first volume SBD the second volume end, again filter membrane 9 is wrapped, at last seam crossing is wrapped up tight.
In the present embodiment, the design and construction of SBD:
The drainability of SBD must not be lower than the coarse sand drainage blanket; The drainability of SBD must not be less than the drainability of PVD, but as a rule, as long as be not less than the drainage requirement that the drainability of coarse sands layer can satisfy PVD.
The specification of SBD should meet table 1 requirement, is made up of central layer and filter membrane, and corresponding deformability and certain intensity are arranged, and can satisfy the requirement of ground sedimentation and deformation.For example, sedimentation is 2 meters, and roadbed is wide 30 meters, and 2 meters equal 7% divided by 30 meters so, less than the deformability 10% of SBD.
The standard of table 1:SBD
To vertical plastic band drain (be called for short PVD) arrangement requirement:
With the roadbed is example, and as a rule, the vertical plastic band drain adopts equilateral triangle to arrange, and is higher when roadbed, when underground soil is softer, will establish the back-pressure district under the roadbed material floor, and at this moment the PVD spacing is little under the main road, the back-pressure district (if any) locate spacing more greatly.
Normal discharge layer of sand in this way, need not to adjust the PVD spacing, but if will use SBD, we to be adjusted to the back-pressure district PVD of place spacing, the adjustment principle is: the PVD quantity in the unit square meter is constant, and the back-pressure district PVD of place longitudinal pitch modulus will be complementary with the modulus of PVD spacing under the main road.Now at above situation, we rearrange replacement sketch such as Figure 24 to the PVD spacing at place, back-pressure district.
The drainability of horizontal plastic draining board (being called for short SBD) is not less than the drainability of horizontal drainage layer of sand, now calculates the drainability of SBD and the drainability of conventional drainage blanket, and is compared as follows:
Plastic draining board SBD drainability computational chart (30cm and 20cm is wide)
According to aforementioned calculation, 0.3 meter wide SBD drainability is 1.9 * 10-5m3/s, can replace 2.65 meters wide 0.7 meter thick horizontal drainage layer of sand.
For ease of the quantity of construction control and optimization SBD, the PVD spacing of design is adjusted with the layout of coupling SBD, but guarantees that the quantity of every square meter PVD is constant.
According to above calculating, the drainability of 03 meter wide SBD is equivalent to 2.65 meters wide, 0.7 meter thick coarse sand drainage blanket, therefore needs only the spacing of SBD less than 2.65 meters.
SBD along lateral arrangement will be longer than 2 meters on roadbed, and along reaching the gutter, sees Figure 15.Establish one 0.5 meters dark gutters on the roadbed limit, so that the water that SBD discharges can be discharged smoothly.Arrange longitudinally that in the position of curb two row SBD are parallel to roadbed, vertically SBD is mainly used in when the going wrong of horizontal SBD and guarantees that draining is unobstructed, as the centre fracture or stop up.
Claims (3)
1. a mud soft soil foundation is used the horizontal drainage system of plastic draining board, and the arranged around of mud soft soil foundation has gutter (8), it is characterized in that:
Be covered with the fine sand layer that a layer thickness is 50～60cm (2) above the mud soft soil foundation (1), to mud soft soil foundation (1), be inserted with vertical plastic band drain (3) from fine sand layer (2) downwards at interval, the equilateral triangle that is distributed as of described vertical plastic band drain (3) is arranged, its top is folding, level is laid on above the fine sand layer (2), fixedly connected horizontal plastic draining board on the folded part of vertical plastic band drain (3);
Horizontal plastic draining board comprises horizontal plastic draining board of broadwise (4) and the horizontal plastic draining board of warp-wise (5), the horizontal plastic draining board of described broadwise (4) is arranged at interval along the ground length direction, and push down the ground folded part of each vertical plastic band drain, its two ends stretch in the mud soft soil foundation gutter (8) on every side; The horizontal plastic draining board of described warp-wise (5) is at least two, and is parallel with the ground length direction, pushes down the horizontal plastic draining board of broadwise (4).
2. mud soft soil foundation according to claim 1 is used the horizontal drainage system of plastic draining board, it is characterized in that: described vertical plastic band drain (3) has four rows at least, adjacent two rows' top doubling is in opposite directions pushed down by a horizontal plastic draining board of broadwise (4) above the folded part of per two row's vertical plastic band drains (3).
3. mud soft soil foundation according to claim 1 and 2 is used the horizontal drainage system of plastic draining board, and it is characterized in that: the spacing between the described vertical plastic band drain (3) is 1～3m, and the spacing between the horizontal plastic draining board of broadwise is 1～3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920300419U CN201372430Y (en) | 2009-01-24 | 2009-01-24 | Horizontal drainage system applying plastic drainage plate on slit weak soil groundsill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920300419U CN201372430Y (en) | 2009-01-24 | 2009-01-24 | Horizontal drainage system applying plastic drainage plate on slit weak soil groundsill |
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| Publication Number | Publication Date |
|---|---|
| CN201372430Y true CN201372430Y (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920300419U Expired - Fee Related CN201372430Y (en) | 2009-01-24 | 2009-01-24 | Horizontal drainage system applying plastic drainage plate on slit weak soil groundsill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828501A (en) * | 2012-09-21 | 2012-12-19 | 淮海工学院 | Surcharge preloading drainage consolidation method of salt pond soft base |
-
2009
- 2009-01-24 CN CN200920300419U patent/CN201372430Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828501A (en) * | 2012-09-21 | 2012-12-19 | 淮海工学院 | Surcharge preloading drainage consolidation method of salt pond soft base |
| CN102828501B (en) * | 2012-09-21 | 2015-02-04 | 淮海工学院 | Surcharge preloading drainage consolidation method of salt pond soft base |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20120124 |