CN209686175U - Pile foundation side soft soil foundation road eliminates frictional resistance structure - Google Patents
Pile foundation side soft soil foundation road eliminates frictional resistance structure Download PDFInfo
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- CN209686175U CN209686175U CN201920076142.4U CN201920076142U CN209686175U CN 209686175 U CN209686175 U CN 209686175U CN 201920076142 U CN201920076142 U CN 201920076142U CN 209686175 U CN209686175 U CN 209686175U
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Abstract
The utility model relates to a kind of pile foundation side soft soil foundation roads to eliminate frictional resistance structure, belong to soft soil foundation road construction field, its structure includes being arranged under house or yard to constitute plurality of rows of more pile bases in soft soil foundation and the solidification soil layer of road is closed in more pile bases side, TGXG, base and supercrust are constituted, also in solidification soil layer, TGXG, base, supercrust jointly with separation layer is equipped between more pile bases for closing on, the separation layer makees vertically extending setting along link length direction, solidification soil layer is reduced or eliminated by separation layer, base, the supercrust frictional resistance with the more pile bases side closed on jointly, make supercrust with Soft Soil Layer and solidification soil layer uniform settlement, in conjunction with corresponding construction method, so that the utility model has simple structure, convenient construction, it is low-cost, the advantages that reliable in quality, therefore it is with higher Economic benefit and social benefit.
Description
Technical field
The utility model relates to a kind of soft soil foundation road construction fields, in particular to pile foundation side soft soil foundation road to eliminate
Frictional resistance structure.
Background technique
House or yard on soft soil foundation is frequently with pile foundation, and settling amount is generally more small, but its periphery is closed on
For the expense of saving, processing soft soil measure is simpler on road, often there is biggish differential settlement, but house or yard between the two
Road joining place is closed on due to frictional resistance between the pile foundation under road surface, base and processing soft soil part and house or yard with periphery
Presence, it is difficult to the road surface uniform settlement with the other end for closing on house or yard, the dished trend curve of shape, influence using
And environmental beauty, or even damage pavement structure.
Summary of the invention
There is provided the technical problem to be solved by the utility model is to overcome the deficiencies of existing technologies a kind of simple structure,
Convenient construction, low-cost, reliable in quality pile foundation side soft soil foundation road eliminate frictional resistance structure.
The technical issues of the utility model, is achieved through the following technical solutions:
A kind of pile foundation side soft soil foundation road eliminates frictional resistance structure and construction method, including setting is soft under house or yard
Plurality of rows of more pile bases are constituted in soil base, which is the Soft Soil Layer for closing on road, on the Soft Soil Layer successively
Be laid with solidification soil layer, TGXG, base and supercrust, and solidify soil layer, TGXG, base, supercrust jointly with close on
More pile bases between be equipped with separation layer, which is along link length direction to make vertically extending setting, is reduced or eliminated solid
Change soil layer, base, the supercrust frictional resistance with the more pile bases side closed on jointly, makes supercrust with Soft Soil Layer and solidification
Soil layer uniform settlement.
The separation layer is more pile bases side and that closes on solidify between soil layer along link length direction subsection setup
Heated bitumen and asphalt felt, the injection heated bitumen and pile foundation surface smooth contact are sprayed, frictional resistance is reduced, is repaved outside injection heated bitumen
If 1~2 layer of asphalt felt；
The solidification soil layer be added on the spot in weak soil curing agent through uniform mixing, be rolled into the closely knit soil body again.
The TGXG is as the polypropylene of high molecular polymer, polyvinyl chloride through two dimension made of thermoplastic or molding
Latticed geosynthetics.
The base is by delaying slag or mud knot crushed stone material is laid with.
The supercrust is paved by asphalt concrete pavement or block stone.
Compared with prior art, a kind of pile foundation side soft soil foundation road of the utility model major design eliminates frictional resistance knot
Structure, the structure are to constitute plurality of rows of more pile bases and more pile bases side is closed on by being arranged under house or yard in soft soil foundation
Solidification soil layer, TGXG, base and the supercrust on road are constituted, also common in solidification soil layer, TGXG, base, supercrust
With separation layer is equipped between more pile bases for closing on, which makees vertically extending setting along link length direction, passes through isolation
Layer reduces or eliminates the frictional resistance for solidifying soil layer, base, supercrust jointly with the more pile bases side closed on, and makes supercrust with soft
Soil layer and solidification soil layer uniform settlement, in conjunction with corresponding construction method, so that the utility model has simple structure, construction just
The advantages that sharp, low-cost, reliable in quality, therefore have high economic benefit and social benefit.
Detailed description of the invention
Fig. 1 is the structural facades schematic diagram of the utility model.
Fig. 2 is sedimentation and Force Calculation schema.
Specific embodiment
It will elaborate again by above-mentioned attached drawing to the utility model embodiment below.
As shown in FIG. 1 to FIG. 2,1. pile foundations, 2. Soft Soil Layers, 3. solidification soil layers, 4. TGXG, 5. bases, 6. supercrusts,
7. separation layer.
Pile foundation side soft soil foundation road eliminates frictional resistance structure, as shown in Figure 1, belonging to a kind of soft soil foundation road construction neck
Domain, including setting constitute plurality of rows of more pile bases 1 under house or yard in soft soil foundation, which is to close on road
Soft Soil Layer 2, solidification soil layer 3, TGXG 4, base 5 and supercrust 6 are successively laid on Soft Soil Layer, and solidify soil layer 3, soil
Work grid 4, base 5, supercrust 6 jointly with separation layer 7 is equipped between more pile bases 1 for closing on.
Wherein, solidification soil layer 3 is a kind of novel environment friendly road-making material, it is that curing agent is added on the spot in weak soil through uniform
Mixing makes curing agent and weak soil carry out physics, chemical reaction, and weak soil is rolled into the closely knit soil body after solidifying again, it can improve soft
The engineering properties such as compression strength, water stability, freezing stability and the compression reduction of soil are a kind of weak soils that comparison is simple and economic
Measures of foundation treatment.
The TGXG 4 is a kind of main geosynthetics, by high molecular polymerizations such as polypropylene, polyvinyl chloride
Object through two-dimensional mesh lattice-like material made of thermoplastic or molding, it enhancing soil body shearing resistance and reinforcement can be improved the globality of the soil body with
Load force all has remarkable effect.
The base 5 has certain intensity, stability by delaying slag or mud knot crushed stone material is laid with；Described
Supercrust 6 is paved by asphalt concrete pavement or block stone；The separation layer 7 is that 1~2 layer of asphalt felt and pitch form,
The more pile bases and close between road surface, basis and solidified earth that length direction is vertically provided under house or yard along road surface；Cause
This, just can be reduced or eliminate by separation layer 7 and solidify soil layer 3, base 5, supercrust 6 and rub jointly with more pile bases side for closing on
Resistance, and make to solidify soil layer 3 and 2 uniform settlement of Soft Soil Layer.
Meanwhile the total settlement for solidifying soil layer 3 and Soft Soil Layer 2 is closed in road, calculated to simplify, close on road Road
The settlement after construction of surface layer 6 and base 5 is ignored, and the weight and vehicle of unit length supercrust 6 and base 5 are as solidified earth
Layer 3 and the load of Soft Soil Layer 2 are；Assuming that rubbing jointly with what more pile bases side for closing on generated solidifying soil layer 3, Soft Soil Layer 2
ResistanceUnder the action of 6 subsidence curve of supercrust be, by law of conservation of energy, loadLosses of potential energy and frictional resistanceFor total settlementMade function is equal, then closes on 2 total settlement of solidification soil layer 3 and Soft Soil Layer in road, subsidence curve
EquationAnd frictional resistanceIt is calculated by following formula:
Formula one,
Solidify the total settlement of soil layer 3 and Soft Soil Layer 2
Formula two,
Subsidence curve equation
Formula three,
Solidify the frictional resistance that soil layer 3, Soft Soil Layer 2 are generated with the more pile bases side closed on jointly
Formula four,
Not set separation layer 7, i.e., when solidification soil layer 3, the practical frictional resistance of Soft Soil Layer 2When, subsidence curve is, practical frictional resistanceIt is caused solidify soil layer 3, Soft Soil Layer 2 jointly with the non-settling height in more pile bases side closed on
It is equal to, it is desirable that；
After separation layer 7 is arranged, when solidification soil layer 3, the practical frictional resistance of Soft Soil Layer 2When, subsidence curve is, practical frictional resistanceIt is caused solidify soil layer 3, Soft Soil Layer 2 jointly with the non-settling height in more pile bases side closed on
It is equal to, it is desirable that；
It can be seen that setting separation layer 7 can be reduced until eliminating practical frictional resistanceI.e.Or, make practical frictional resistanceIt is caused solidify soil layer, Soft Soil Layer jointly with the non-settling height in more pile bases side closed onOr, i.e. house
Or sedimentation and the other end road surface uniform settlement on road surface are closed in multiple rows of pile foundation side under yard；
Each symbolic significance in formula one, formula two, formula three and formula four are as follows:
--- solidify the total settlement of soil layer 3 and Soft Soil Layer 2, is equal to when practical frictional resistanceWhen solidified earth
Layer 3, Soft Soil Layer 2 jointly with the non-settling height in more pile bases side closed on,Calculation formula and method refering to related multilayer water
Leveling shape settlement of foundation reckoner or document, such as " the total additional stress of horizontal layer ground and settlement calculation analysis (Luo Shiyi:
Chang An University's Master's thesis, 2003) ", it can also be determined by test,；
--- after setting separation layer 7, when solidification soil layer 3, the practical frictional resistance of Soft Soil Layer 2When solidified earth
Layer 3, Soft Soil Layer 2 jointly with the non-settling height in more pile bases side closed on,；
--- solidify soil layer 3, Soft Soil Layer 2 and allow non-settling height with the more pile bases side closed on jointly,；
--- with solidification soil layer 3 and 2 characteristic of Soft Soil LayerWithRelated sedimentation transfer matrix, sees
" the total additional stress of horizontal layer ground and settlement calculation analysis (Luo Shiyi: Chang An University's Master's thesis, 2003) "；
--- Hankel transform parameter；
--- the thickness weight and vehicular load of unit length supercrust 6 and base 5,；
--- abscissa, the ordinate of the other end road surface starting point coordinate system of house or yard are respectively closed on,；
--- solidify the subsidence curve coefficient of soil layer 3 and Soft Soil Layer 2,；
--- the width of supercrust 6 and base 5,；
--- solidify the sum of soil layer 3, base 5 and thickness of supercrust 6,；
--- solidify the frictional resistance stress of the vertical surface of soil layer 3, base 5 and supercrust 6,；
--- solidify Young's modulus of elasticity, the Poisson's ratio of soil layer 3,, dimensionless；
--- the Young's modulus of elasticity of Soft Soil Layer 2, Poisson's ratio,, dimensionless.
In addition, pile foundation side soft soil foundation road eliminates the construction method of frictional resistance structure, mainly include the following steps:
Solidify soil layer and Soft Soil Layer Step 1: calculatingWith
1. testing the curing agent ratio age compression strength of 7 day age and 28 day of different addition contents, meeting design requirement
Under conditions of it is preferable to determine curing agent mix ratios；
2. test determines the characterisitic parameter for solidifying soil layer and Soft Soil Layer、；
3. experimental test separation layer and solidifying the frictional resistance stress between soil layer, Soft Soil Layer, take measures to reduce frictional resistance stressValue；
4. calculating separately the frictional resistance for solidifying soil layer 3 and Soft Soil Layer 2 by formula one, formula three and formula fourWith,
MeetIt is required that；
Step 2: solidification weak soil
1. falling the cultivated plant soil of surface layer 30cm or so clearly；
2. segmentation 10m~20m is gradually excavated to the projected depth for solidifying soil layer with excavator, equal by curing agent mix ratio
It is even to broadcast sowing curing agent, and stirred evenly weak soil and curing agent with power shovel；
Step 3: installation separation layer
1. more pile bases side under house or yard in soft soil foundation and the solidification soil layer stirred evenly that closes on it
Between, extremely solidify soil layer bottom surface along road surface length direction segmentation 10m~20m excavation width 80cm~100cm, depth with excavator
Groove；
2. soil layer power shovel between more pile bases 1 manually makes real, the corner angle concrete hammer of pile foundation exposure
It beats out or grinding wheel polishes；
3. heating pitch to 800C~1000C sprays heated bitumen with the segmentation of pitch spray gun from below to up, keeps heated bitumen viscous
It is attached to the native surface between pile foundation 1 and pile foundation, thickness 1cm~2cm；
4. after heated bitumen is cooled to room temperature, 1~2 layer of asphalt felt of broken-up laying is native between pile foundation and more pile bases from below to up
The surface of pitch is adhered to, 50cm~80cm folding in asphalt felt bottom is that the horizontal weak soil top surface that is layered on is pushed down with solidified earth, by oily hair
Felt tenses upwards, and asphalt felt is temporarily fixed on more pile bases 1 by top with cement nail；It can be by several oil along link length direction
Felt spreading, every mutual spreading overlap length 5cm~10cm of width asphalt felt；
After 5. every section of 10m~20m separation layer 7 paves tension, the groove of excavation is full with solidification earthen backfill；
Step 4: rolling solidified earth and maintenance
1. after the completion of solidifying soil layer 3 and separation layer 7, at the beginning of need to solidifying soil layer with light-duty road roller etc. is mechanical within the 1d time
Step compacting；
2. the volatilization of moisture and the influence of rainwater in solidification process in order to prevent spreads 1 layer of plastics on the surface for solidifying soil layer 3
Membrane curing；
3. after 14d, with light-duty bull-dozer or manually being flattened to the surface layer for solidifying soil layer 3；
4. testing inspection solidifies 3 mass of soil layer, meet design requirement；
Step 5: being laid with TGXG
The flattening of TGXG 4 is layered on and solidifies 3 surface of soil layer, each reserved pavement edge 80cm~100cm length in both ends, often
Mutual connection overlap length 10cm~20cm of width TGXG 4；
Step 6: filling base's pressure
1. filling first layer to delay slag or mud knot rubble 30cm~50cm, it is compacted with medium-sized road roller, solidity meets design and wants
It asks；
2. first layer is placed in 4 inflection of TGXG of reserved pavement edge to delay slag or mud knot rubble top surface, continue to fill
The second layer is delayed slag or mud knot rubble 30cm~50cm, is compacted with medium-sized or large roller, until filling, to be densified to design thick
Degree, compactness meet design requirement；
Step 7: surfacing
1. extracting the cement nail being temporarily fixed on more pile bases 1 at the top of asphalt felt；
2. the supercrust 6 of making bituminous concrete paves block-stone pavement.
Embodiment described in the utility model is merely to illustrate the utility model rather than limitation the scope of the utility model.
It should be further understood that after reading the content taught by the present invention, those skilled in the art can be to the utility model
It makes various changes or modifications, it is interior that these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (4)
1. a kind of pile foundation side soft soil foundation road eliminates frictional resistance structure, including setting is constituted in soft soil foundation under house or yard
Plurality of rows of more pile bases (1), more pile bases side are the Soft Soil Layer (2) for closing on road, it is characterised in that the Soft Soil Layer (2)
On be successively laid with solidification soil layer (3), TGXG (4), base (5) and supercrust (6), and solidification soil layer (3), TGXG
(4), base (5), supercrust (6) are equipped with separation layer (7) between more pile bases (1) for closing on jointly, which is along road
Road length direction makees vertically extending setting, reduces or eliminates solidification soil layer (3), base (5), supercrust (6) face with described jointly
The frictional resistance of close more pile bases side makes supercrust (6) with Soft Soil Layer (2) and solidification soil layer (3) uniform settlement.
2. pile foundation side soft soil foundation road according to claim 1 eliminates frictional resistance structure, it is characterised in that the isolation
Layer (7) between more pile bases side and the solidification soil layer (3) closed on along the injection heated bitumen of link length direction subsection setup and
Asphalt felt, the injection heated bitumen and pile foundation (1) surface smooth contact reduce frictional resistance, re-lay 1~2 layer outside injection heated bitumen
Asphalt felt.
3. pile foundation side soft soil foundation road according to claim 1 eliminates frictional resistance structure, it is characterised in that the base
(5) by delaying slag or mud knot crushed stone material is laid with.
4. pile foundation side soft soil foundation road according to claim 1 eliminates frictional resistance structure, it is characterised in that the road surface
Layer (6) is paved by asphalt concrete pavement or block stone.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853313A (en) * | 2019-01-17 | 2019-06-07 | 浙江绿艺园林工程有限公司 | Pile foundation side soft soil foundation road eliminates frictional resistance structure and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853313A (en) * | 2019-01-17 | 2019-06-07 | 浙江绿艺园林工程有限公司 | Pile foundation side soft soil foundation road eliminates frictional resistance structure and construction method |
| CN109853313B (en) * | 2019-01-17 | 2024-04-30 | 浙江绿艺建设有限公司 | Pile foundation side soft soil foundation road friction resistance eliminating structure and construction method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325002 No. 29, No. three industrial zone, Pu Zhou, Lucheng District, Wenzhou, Zhejiang. Patentee after: Zhejiang Green Art Construction Co.,Ltd. Address before: 325002 No. 29, No. three industrial zone, Pu Zhou, Lucheng District, Wenzhou, Zhejiang. Patentee before: ZHEJIANG GREEN ART GARDEN & PARK ENGINEERING Co.,Ltd. |
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