CN114808580A - Construction method for settlement-preventing highway subgrade in soft soil area - Google Patents
Construction method for settlement-preventing highway subgrade in soft soil area Download PDFInfo
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- CN114808580A CN114808580A CN202210500584.3A CN202210500584A CN114808580A CN 114808580 A CN114808580 A CN 114808580A CN 202210500584 A CN202210500584 A CN 202210500584A CN 114808580 A CN114808580 A CN 114808580A
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- 239000002689 soil Substances 0.000 title claims abstract description 95
- 238000010276 construction Methods 0.000 title claims abstract description 31
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 47
- 238000005553 drilling Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010426 asphalt Substances 0.000 claims abstract description 6
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 77
- 238000000034 method Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/34—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ made of several courses which are not bound to each other ; Separating means therefor, e.g. sliding layers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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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
- E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
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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
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The application relates to a construction method of a settlement-preventing highway subgrade in a soft soil area, which is applied to the technical field of highway subgrades. Which comprises the following steps: s1, processing a substrate; s2, digging a drainage groove; s3, compacting soft soil below the roadbed, and discharging water in the soft soil through a drainage channel; s4, drilling a pile hole, hoisting an anti-settling pile, and pouring concrete; s4.1, drilling a pile hole, and hoisting the anti-settling pile into the pile hole through hoisting equipment; s4.2, blowing compressed air into the inner pipe, driving one end of the stabilizing nail to be between the outer pipe and the inner pipe, and inserting the other end of the stabilizing nail into a soil body; s4.3, pressing the inner pipe downwards through a pile driver to enable the fixing nail to be further inserted into the soil body; s4.4, pouring concrete into the inner pipe, between the inner pipe and the outer pipe, and between the outer pipe and the wall of the pile hole; s5, paving a gravel layer; s6, paving a sandstone layer; s7, paving a waterproof layer; s8, pouring concrete to form a concrete layer; and S9, laying an asphalt layer. This application has the effect that improves the bearing capacity of road bed.
Description
Technical Field
The application relates to the technical field of highway subgrades, in particular to a construction method of a settlement-preventing highway subgrade in a soft soil area.
Background
The highway belongs to a high-grade highway, the required highway subgrade bearing capacity is higher, soft soil has the characteristics of large water content, poor permeability, low natural strength, high compressibility and the like, and the highway subgrade construction in a soft soil area has certain difficulty.
Common treatment methods of the subgrade in the soft soil area in the related technology include base surface strengthening, soil replacement, lateral restraint, pre-pressing consolidation, soil curing agent method and the like.
Aiming at the related technologies, the inventor considers that the related treatment method is single, the treatment effect on deep and thick soft soil layers is poor, the subgrade is easy to settle, and certain hidden danger is caused to the driving safety.
Disclosure of Invention
In order to solve the problem that the highway subgrade in a deep and soft soil area is prone to settlement, the application provides a construction method of the settlement-preventing highway subgrade in the soft soil area.
The application provides a construction method of soft soil area anti-settlement highway subgrade, which adopts the following technical scheme:
a construction method of a settlement-preventing highway subgrade in a soft soil area comprises the following steps:
s1, leveling the field, carrying out substrate treatment, and removing organic impurities;
s2, digging a drainage groove;
s3, compacting soft soil below the roadbed by using a compactor, and discharging water in the soft soil after the water flows into a drainage channel;
s4, drilling a pile hole, hoisting an anti-settling pile, and pouring concrete;
the method specifically comprises the following steps: s4.1, drilling a pile hole, and hoisting the anti-settling pile into the pile hole through hoisting equipment;
s4.2, blowing compressed air into the inner pipe, driving one end of the stabilizing nail to be between the outer pipe and the inner pipe, and inserting the other end of the stabilizing nail into a soil body;
s4.3, pressing the inner pipe downwards through a pile driver to enable the fixing nail to be further inserted into the soil body;
s4.4, pouring concrete into the inner pipe, between the inner pipe and the outer pipe, and between the outer pipe and the wall of the pile hole;
s5, paving a gravel layer;
s6, laying a gravel layer on the gravel layer;
s7, paving a waterproof layer on the sand layer;
s8, pouring concrete on the waterproof layer to form a concrete layer;
and S9, laying an asphalt layer.
Through adopting above-mentioned technical scheme, the compactor is with the weak soil compaction, and the moisture that will extrude in the weak soil simultaneously in time discharges away through water drainage tank, improves the bearing capacity of weak soil through laying rubble layer, grit layer and concrete layer. And the rigid support of the anti-settling pile is utilized, so that the bearing capacity of soft soil can be further improved, the possibility of settlement of the roadbed can be reduced, and the durability of the roadbed can be improved.
Optionally, the anti-settling pile comprises an outer pipe, an inner pipe and a plurality of stabilizing nails, the inner pipe is slidably arranged in the outer pipe, and the outer pipe is provided with a limiting mechanism for limiting the inner pipe;
the outer pipe is provided with a plurality of through holes, the inner pipe is provided with a plurality of through hole for the stable nails to pass through in a matching way, and the stable nails are arranged in the through hole and the through hole in a sliding and penetrating way in a one-to-one correspondence way.
Through adopting above-mentioned technical scheme, will subside the stake and place the back in the stake hole, blow off the firm nail from the inner tube through compressed air, then push down the inner tube through the pile driver, make the inner tube to stabilize the nail and support into the soil body, pour the concrete again and make firm nail, outer tube and inner tube form a whole, increased the area of contact of outer tube with the soil body through firm nail to can make the outer tube more stably fix in the soil body, and then can strengthen the bearing capacity of weak soil.
Optionally, the inner pipe comprises a first vertical section and an inclined section, the first vertical section is communicated with the inclined section, and one end of the inclined section, which is far away from the first vertical section, is closed;
the limiting mechanism is tightly abutted to the first vertical section, and the plurality of nail penetrating holes are formed in the inclined section.
Through adopting above-mentioned technical scheme, before preventing subsiding the stake and hanging into the stake hole, the one end of firm nail is located the inner tube, and the other end extends to the drift bolt downthehole, and the constructor of being convenient for on the one hand hangs into the stake hole with preventing subsiding the stake, and on the other hand also can choose the longer firm nail of length for use to the length that firm nail inserted in the soil body is longer, makes the stability of outer tube in the soil body can improve.
After the anti-settling pile is placed in the pile hole, the stabilizing nail is blown out from the inner pipe through compressed air, and then the first vertical section is pressed downwards through the pile driver, so that the peripheral wall of the inclined section supports against and pushes the stabilizing nail, and the stabilizing nail is inserted into the soil body.
Optionally, a plurality of sliding grooves for the fixing nails to slide in a matching manner are arranged on the outer walls of the inclined section and the first vertical section.
Through adopting above-mentioned technical scheme, the spout plays and carries out spacing effect to firm nail, can reduce to stabilize the nail at slope section decline in-process and take place crooked condition to make firm nail can insert more steadily and establish in the soil body.
Optionally, the limiting mechanism includes a positioning ring and a plurality of limiting rods disposed in the positioning ring, the positioning ring is sleeved on the outer tube, and the limiting rods penetrate through the outer tube and abut against the first vertical section.
Through adopting above-mentioned technical scheme, the holding ring plays and carries out the effect of fixing a position to the outer tube, makes the periphery wall of holding ring paste on the inner wall in stake hole, can place the center in stake hole with the outer tube to can make concrete placement more even.
Can fix the inner tube through the gag lever post, the staff of being convenient for will prevent subsiding the stake and hang into downthehole, when pushing down first vertical section and descend, can also reduce first vertical section and take place crooked possibility.
Optionally, the limiting rod comprises a fixed rod and a movable rod slidably disposed in the fixed rod, the fixed rod is connected with the positioning ring, and the movable rod abuts against the first vertical section; a spring is arranged in the fixed rod, one end of the spring is connected to the fixed rod, and the other end of the spring is connected to the movable rod; the first vertical section is provided with a plurality of limiting grooves for the movable rods to be matched and abutted.
Through adopting above-mentioned technical scheme, the gag lever post comprises dead lever and the movable rod that mutual slip set up, makes the length of telescopic link adjustable, and when the pile driver did not push down, the movable rod supported tightly and fixes first vertical section on first vertical section. When the pile driver pushes the first vertical section down until the top end of the first vertical section is flush with the top end of the outer tube, the pile driver is stopped. At the moment, the movable rod is aligned to the limiting groove, the movable rod is tightly abutted to the limiting groove under the elastic force action of the spring, and the first vertical section is fixed, so that the possibility of floating of the inner pipe can be reduced when concrete is poured.
Optionally, the anti-settling pile further comprises a pushing-out mechanism and a nail fixing mechanism, the nail fixing mechanism is arranged on the pushing-out mechanism, and the nail fixing mechanism is used for fixing the fixing nail;
one end of the inclined section, which is far away from the first vertical section, is communicated with a second vertical section, one end of the second vertical section, which is far away from the inclined section, is closed, and the second vertical section is used for the nail fixing mechanism to prop in;
the pushing-out mechanism is used for pushing the stabilizing nails out of the inner tube, and the pushing-out mechanism is arranged on the inner tube through a connecting mechanism.
By adopting the technical scheme, the propping mechanism is connected on the inner pipe through the connecting mechanism, so that the constructor can conveniently hoist the anti-settling pile into the pile hole. The fixing nail mechanism is used for fixing the stable nail, so that the possibility that the stable nail is separated from the anti-settling pile in the hoisting process can be reduced.
Optionally, the pushing-out mechanism comprises a vertical pipe, a pushing-out barrel connected with the vertical pipe and a nail fixing pipe connected to the pushing-out barrel, the connecting mechanism is arranged on the vertical pipe, and the nail fixing mechanism is arranged on the nail fixing pipe.
Through adopting above-mentioned technical scheme, will subside the stake and place at stake downthehole back, remove coupling mechanism and make the standpipe drive to offset a section of thick bamboo and move down, will stabilize the one end that the nail kept away from the soil body through offsetting a section of thick bamboo and offset the inner tube, will offset a section of thick bamboo and take out the inner tube after, recharge compressed air and blow out the nail hole of wearing with the one end that the soil body was kept away from to the nail that stabilizes. The pushing-out cylinder is used for pushing the stabilizing nail, and then compressed air is blown, so that the using amount of the compressed air can be reduced. And the ejecting mechanism, the nail fixing mechanism and the connecting mechanism can be repeatedly utilized.
Optionally, the nail fixing mechanism comprises a clamping block and a clamping edge, the clamping edge is sleeved and fixed on the nail fixing pipe, and a clamping groove for clamping the clamping block is formed between the clamping edge and the nail fixing pipe;
the clamping block is arranged on the stable nail, and the inclined section is provided with a block penetrating hole for the clamping block to penetrate through in a matched mode.
Through adopting above-mentioned technical scheme, with joint arris joint income joint inslot, can fix the nail that stabilizes to can reduce the possibility that the nail that stabilizes is deviate from the outer tube. In addition, the fixing nail is connected with the fixing nail pipe through clamping, the first vertical section is pressed downwards to enable the fixing nail pipe to be located in the second vertical section, the clamping block can be separated from the clamping groove, and meanwhile the pushing-out cylinder pushes the fixing nail out of the inner pipe.
Optionally, the connecting mechanism includes a plurality of clamping support plates disposed on the vertical tube, and the first vertical section is provided with a plurality of U-shaped holes for the clamping support plates to slide in a matching manner.
Through adopting above-mentioned technical scheme, will block on the layer board is arranged in the inner tube, can fix the standpipe, the constructor of being convenient for will support out mechanism and inner tube, outer tube and lift by crane into stake hole. The standpipe is rotated to make the clamping supporting plate align to the U-shaped hole, the standpipe can move up and down, and then the clamping block can be inserted into or separated from the clamping groove.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the bearing capacity of the soft soil is improved by laying a gravel layer, a gravel layer and a concrete layer. The bearing capacity of soft soil can be further improved by utilizing the rigid support of the anti-settling pile, so that the possibility of settlement of the roadbed can be reduced, and the durability of the roadbed can be improved;
2. the contact area between the outer pipe and the soil body is increased through the stabilizing nails, so that the outer pipe can be more stably fixed in the soil body, and the bearing capacity of soft soil can be further enhanced;
3. the ejection cylinder is firstly used for ejecting the stable nail and then the compressed air is used for blowing, so that the using amount of the compressed air can be reduced, and the ejection mechanism, the nail fixing mechanism and the connecting mechanism can be repeatedly utilized, so that the material consumption can be saved.
Drawings
Fig. 1 is a schematic structural diagram of an anti-settling pile in the embodiment of the application.
Fig. 2 is a sectional view of a settling preventing pile in the embodiment of the present application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic diagram of a position relationship when the pushing-out barrel pushes the fixing nail in the embodiment of the present application.
Fig. 5 is an enlarged view of a portion B in fig. 4.
Fig. 6 is an enlarged view of a portion C in fig. 4.
Fig. 7 is a schematic diagram of a soft soil region anti-settlement highway subgrade in the embodiment of the application.
Fig. 8 is an enlarged view of a portion D in fig. 7.
Fig. 9 is an enlarged view of a portion E in fig. 7.
Reference numerals: 1. soft soil; 101. a water discharge tank; 102. pile holes; 2. anti-settling piles; 21. an outer tube; 211. a through hole; 22. an inner tube; 221. a first vertical section; 2211. a limiting groove; 2212. a U-shaped hole; 222. an inclined section; 2221. a nail penetration hole; 2222. a chute; 2223. a block penetrating hole; 223. a second vertical section; 23. fixing the nail; 24. a limiting mechanism; 241. a positioning ring; 242. a limiting rod; 2421. fixing the rod; 2422. a movable rod; 2423. a spring; 25. a pushing-out mechanism; 251. a vertical tube; 252. pushing out the cylinder; 253. fixing a nail tube; 26. a nail fixing mechanism; 261. a clamping block; 262. clamping edges; 263. a clamping groove; 27. a connecting mechanism; 271. a card support plate; 3. a crushed stone layer; 4. a sandstone layer; 5. a waterproof layer; 6. a concrete layer; 7. an asphalt layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-9.
The embodiment of the application discloses a construction method of a settlement-preventing highway subgrade in a soft soil area.
Referring to fig. 1 and 2, in the construction method of the settlement-preventing highway subgrade in the soft soil region, the bearing capacity of the soft soil 1 is increased by arranging settlement-preventing piles 2 in the soft soil 1, wherein each settlement-preventing pile 2 comprises an outer pipe 21, an inner pipe 22, a limiting mechanism 24, a pushing-out mechanism 25, a nail fixing mechanism 26, a connecting mechanism 27 and a plurality of fixing nails 23. The inner tube 22 is arranged in the outer tube 21 in a sliding mode and limited through the limiting mechanism 24, the pushing-out mechanism 25 is arranged in the inner tube 22 in a sliding mode, the pushing-out mechanism 25 is fixed in the inner tube 22 through the connecting mechanism 27, and the nail fixing mechanism 26 and the connecting mechanism 27 are fixed on the pushing-out mechanism 25. A plurality of through holes 211 are distributed on the outer tube 21, and a plurality of through hole 2221 for the fixing nail 23 to pass through in a matching way is arranged on the inner tube 22.
Referring to fig. 2 and 3, before the anti-settling pile 2 is not hung into the pile hole 102, one end of the stabilizing nail 23 is connected with the pushing-out mechanism 25 through the nail fixing mechanism 26, and the other end of the stabilizing nail 23 passes through the nail penetrating hole 2221 and extends into the through hole 211, so that a constructor can conveniently hang the anti-settling pile 2 into the pile hole 102.
Referring to fig. 4, 5 and 6, after the anti-settling pile 2 is hung into the pile hole 102, the end of the stabilizing nail 23 far away from the soil body is pushed into the nail through hole 2221 by the pushing-out mechanism 25, and meanwhile, the other end of the stabilizing nail 23 is inserted into the soil body.
Referring to fig. 7 and 8, the pushing-out mechanism 25, the nail fixing mechanism 26 and the connecting mechanism 27 are then taken out of the inner tube 22, and compressed air is introduced into the inner tube 22 to blow out the fixing nails 23 from the nail penetration holes 2221. Then the inner pipe 22 is pressed down through the pile driver, the stabilizing nails 23 are further propped into the soil body by the inner pipe 22, concrete is poured to enable the stabilizing nails 23, the outer pipe 21 and the inner pipe 22 to form a whole, the contact area of the outer pipe 21 and the soil body is increased through the stabilizing nails 23, and therefore the outer pipe 21 can be fixed in the soil body more stably, and the bearing capacity of the soft soil 1 can be further enhanced.
Referring to fig. 7 and 8, the inner pipe 22 is composed of a first vertical section 221, an inclined section 222 and a second vertical section 223, the first vertical section 221, the inclined section 222 and the second vertical section 223 are sequentially arranged from the pile hole 102 to the bottom of the pile and are communicated with each other, and one end of the second vertical section 223 far away from the inclined section 222 is closed. The limiting mechanism 24 is fixed on the outer tube 21, and one end of the limiting mechanism 24 far away from the outer tube 21 abuts against the first vertical section 221 to limit the inner tube 22.
Referring to fig. 2 and 3, the pushing-out mechanism 25 comprises a vertical tube 251, a pushing-out barrel 252 fixedly connected to the vertical tube 251, and a nail fixing tube 253 fixedly connected to the pushing-out barrel 252, the connecting mechanism 27 includes a plurality of clamping plates 271, one end of each clamping plate 271 is fixed to the vertical tube 251, in this embodiment, the number of the clamping plates 271 is three as an example, and a plurality of U-shaped holes 2212 for the clamping plates 271 to slide in a matching manner are provided on the first vertical section 221. The connecting mechanism 27 comprises a clamping block 261 and a clamping edge 262, the clamping edge 262 is sleeved and fixed on the nail fixing pipe 253, a clamping groove 263 for the clamping block 261 to be clamped in is formed between the clamping edge 262 and the nail fixing pipe 253, the clamping block 261 is fixed on the fixing nail 23, a nail penetrating hole 2221 for the fixing nail 23 to penetrate in a matched mode is formed in the inclined section 222, and a nail penetrating hole 2223 for the clamping block 261 to penetrate in a matched mode is formed in the inclined section 222.
In addition, be equipped with a plurality of spouts 2222 that supply firm nail 23 cooperation to slide on the outer wall of slope section 222, spout 2222 plays and carries out spacing effect to firm nail 23, can reduce the circumstances that firm nail 23 takes place to warp in the decline in-process of slope section 222 to make firm nail 23 can insert more steadily and establish in the soil body.
Referring to fig. 2 and 3, before the anti-settling pile 2 is not hung into the pile hole 102, the clamping rib 262 is clamped in the clamping groove 263 to fix the stabilizing nail 23, so that the possibility that the stabilizing nail 23 is separated from the outer tube 21 can be reduced. The clamping plate 271 is disposed at the top end of the inner pipe 22, and can fix the vertical pipe 251, so that the vertical pipe 251, the inner pipe 22 and the outer pipe 21 can be conveniently lifted into the pile hole 102 by a constructor.
Referring to fig. 4, 5 and 6, after the anti-settling pile 2 is hung into the pile hole 102, the clamping plate 271 is rotated to align the clamping plate 271 with the U-shaped groove, and then the vertical tube 251 is moved downward to make the clamping block 261 separate from the clamping groove 263, and meanwhile, the pushing-out cylinder 252 pushes the stabilizing nail 23, so that one end of the stabilizing nail 23, which is far away from the soil body, is pushed into the nail penetrating hole 2221, and the other end of the stabilizing nail 23 is inserted into the soil body.
Referring to fig. 7 and 8, the pushing-out mechanism 25 is pulled out of the inner tube 22 by the lifting-up clamping plate 271, then compressed air is charged into the inner tube 22, one end of the stabilizing nail 23 far away from the soil body is blown out of the nail through hole 2221, the first vertical section 221 is pressed down by the pile driver, the groove bottom of the sliding groove 2222 pushes the stabilizing nail 23, the stabilizing nail 23 is further inserted into the soil body, and the second vertical section 223 is also inserted into the soil body. Then, concrete is poured among the inner pipe 22, the inner pipe 22 and the outer pipe 21, the concrete flows into the space between the pile hole 102 and the outer wall through the through hole 211, after the concrete is solidified, the stabilizing nail 23, the outer pipe 21 and the inner pipe 22 form a whole, and the contact area between the outer pipe 21 and the soil body is increased through the stabilizing nail 23 and the second vertical section 223, so that the outer pipe 21 can be more stably fixed in the soil body, the bearing capacity of the soft soil 1 can be enhanced, and the durability of the roadbed can be improved.
In addition, the ejection cylinder 252 is used for ejecting the stabilizing nails 23, and then compressed air is blown, so that the consumption of compressed air can be reduced, and the ejection mechanism 25, the nail fixing mechanism 26 and the connecting mechanism 27 can be recycled, so that the consumable material can be saved.
Referring to fig. 7 and 9, the spacing mechanism 24 includes a positioning ring 241 and a plurality of spacing rods 242, in this embodiment, the number of the spacing rods 242 is three as an example. The positioning ring 241 is sleeved and fixed on the outer tube 21, the limiting rod 242 is composed of a fixing rod 2421 and a movable rod 2422 which are arranged in a sliding mode, so that the length of the telescopic rod is adjustable, a spring 2423 is installed in the fixing rod 2421, one end of the spring 2423 is fixedly connected to the fixing rod 2421, and the other end of the spring 2423 is fixedly connected to the movable rod 2422. The fixing rod 2421 is fixed on the positioning ring 241, and the movable rod 2422 abuts against the first vertical segment 221. The first vertical section 221 is provided with a plurality of limiting grooves 2211 for the movable rods 2422 to fit into, and when the pile driver is not pressed down, the movable rods 2422 tightly press against the first vertical section 221 to fix the first vertical section 221. When the pile driver presses the first vertical section 221 downwards until the top end of the first vertical section 221 is flush with the top end of the outer tube 21, the pile driver is stopped, at this time, the movable rod 2422 is aligned with the limiting groove 2211, the movable rod 2422 is tightly abutted in the limiting groove 2211 under the action of the elastic force of the spring 2423, and the first vertical section 221 is fixed, so that the possibility of floating of the inner tube 22 can be reduced when concrete is poured.
A construction method of a settlement-preventing highway subgrade in a soft soil area comprises the following steps during construction:
s1, leveling the field, carrying out substrate treatment, and removing organic impurities;
s2, installing a protection project on a construction site, and digging a drainage channel 101;
s3, compacting the soft soil 1 below the roadbed by using a compactor, wherein the water in the soft soil 1 flows into the drainage grooves 101 on the two sides of the roadbed and is drained in time;
s4, drilling a pile hole 102, hanging the anti-settling pile 2, and pouring concrete;
the method specifically comprises the following steps: s4.1, drilling a pile hole 102, and hoisting the anti-settling pile 2 into the pile hole 102 through hoisting equipment;
s4.2, rotating the clamping plate 271 to enable the clamping plate 271 to align with the U-shaped groove, then moving the vertical pipe 251 downwards to enable the clamping block 261 to be separated from the clamping groove 263, meanwhile, pushing the ejection cylinder 252 to push the stabilizing nail 23, pushing one end, far away from the soil body, of the stabilizing nail 23 into the nail through hole 2221, inserting the other end of the stabilizing nail 23 into the soil body, then lifting the clamping plate 271 to pull the ejection mechanism 25 out of the inner pipe 22, then filling compressed air into the inner pipe 22, and blowing one end, far away from the soil body, of the stabilizing nail 23 out of the nail through hole 2221;
s4.3, the first vertical section 221 is pressed down through the pile driver, so that the groove bottom of the sliding groove 2222 pushes against the stabilizing nail 23, the stabilizing nail 23 is further inserted into the soil body, and meanwhile, the second vertical section 223 is also inserted into the soil body;
s4.4, pouring concrete among the inner pipe 22, the inner pipe 22 and the outer pipe 21, enabling the concrete to flow into the space between the pile hole 102 and the outer wall through the through hole 211, and after the concrete is solidified, forming a whole by the stabilizing nail 23, the outer pipe 21 and the inner pipe 22;
s5, paving a gravel layer 3 on the soft soil 1, wherein the width of the gravel layer 3 is larger than that of the roadbed;
s6, after the crushed stone layer 3 is settled for a specified time, paving a sandstone layer 4 on the crushed stone layer 3, and filling gaps of the crushed stone layer 3;
s7, paving a waterproof layer 5 on the sand layer 4 after the sand layer 4 is settled to a specified interval;
s8, pouring concrete on the waterproof layer 5, pouring the pile top of the anti-settling pile 2 into the concrete, and forming a concrete layer 6 after the concrete is solidified;
and S9, paving the asphalt layer 7 on the concrete layer 6.
The implementation principle of the construction method of the settlement-preventing highway subgrade in the soft soil area is as follows: the method comprises the following steps: s1, processing a substrate; s2, digging a drainage groove 101; s3, compacting the soft soil 1 below the roadbed, and discharging the water in the soft soil 1 through a drainage channel 101; s4, drilling a pile hole 102, hanging the anti-settling pile 2, and pouring concrete; the method specifically comprises the following steps: s4.2, rotating the clamping plate 271 to enable the clamping plate 271 to align with the U-shaped groove, then moving the vertical pipe 251 downwards to enable the clamping block 261 to be separated from the clamping groove 263, meanwhile, pushing the ejection cylinder 252 to push the stabilizing nail 23, pushing one end, far away from the soil body, of the stabilizing nail 23 into the nail through hole 2221, inserting the other end of the stabilizing nail 23 into the soil body, then lifting the clamping plate 271 to pull the ejection mechanism 25 out of the inner pipe 22, then filling compressed air into the inner pipe 22, and blowing one end, far away from the soil body, of the stabilizing nail 23 out of the nail through hole 2221; s4.3, the first vertical section 221 is pressed down through the pile driver, so that the groove bottom of the sliding groove 2222 pushes against the stabilizing nail 23, the stabilizing nail 23 is further inserted into the soil body, and meanwhile, the second vertical section 223 is also inserted into the soil body; s4.4, pouring concrete among the inner pipe 22, the inner pipe 22 and the outer pipe 21, enabling the concrete to flow into the space between the pile hole 102 and the outer wall through the through hole 211, and after the concrete is solidified, forming a whole by the stabilizing nail 23, the outer pipe 21 and the inner pipe 22; s5, paving a gravel layer 3; s6, paving a sandstone layer 4; s7, paving a waterproof layer 5; s8, pouring concrete to form a concrete layer 6; and S9, laying an asphalt layer 7.
The bearing capacity of the soft soil 1 is improved by laying the gravel layer 3, the gravel layer 4 and the concrete layer 6. And the rigid support of the anti-settling pile 2 is utilized, so that the bearing capacity of the soft soil 1 can be further improved, the possibility of settlement of the roadbed can be reduced, and the durability of the roadbed can be improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A construction method of a settlement-preventing highway subgrade in a soft soil area is characterized by comprising the following steps: the method comprises the following steps:
s1, leveling the field, carrying out substrate treatment, and removing organic impurities;
s2, digging a drainage groove (101);
s3, compacting the soft soil (1) below the roadbed by using a compactor, and discharging the water in the soft soil (1) flowing into a drainage groove (101);
s4, drilling a pile hole (102), hoisting the anti-settling pile (2), and pouring concrete;
s4.1, drilling a pile hole (102), and hoisting the anti-settling pile (2) into the pile hole (102) through hoisting equipment;
s4.2, blowing compressed air into the inner pipe (22), driving one end of the stabilizing nail (23) to be between the outer pipe (21) and the inner pipe (22), and inserting the other end of the stabilizing nail (23) into a soil body;
s4.3, pressing the inner pipe (22) downwards through the pile driver to enable the stable nail (23) to be further inserted into the soil body;
s4.4, pouring concrete into the inner pipe (22), between the inner pipe (22) and the outer pipe (21), and between the outer pipe (21) and the wall of the pile hole (102);
s5, paving a gravel layer (3);
s6, paving a sand stone layer (4) on the gravel layer (3);
s7, paving a waterproof layer (5) on the sandstone layer (4);
s8, pouring concrete on the waterproof layer (5) to form a concrete layer (6);
and S9, laying an asphalt layer (7).
2. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 1, characterized by comprising the following steps of: the anti-settling pile (2) comprises an outer pipe (21), an inner pipe (22) and a plurality of stabilizing nails (23), wherein the inner pipe (22) is arranged in the outer pipe (21) in a sliding manner, and a limiting mechanism (24) used for limiting the inner pipe (22) is arranged on the outer pipe (21);
the outer tube (21) is provided with a plurality of through holes (211), the inner tube (22) is provided with a plurality of through hole (2221) for the fixing nail (23) to pass through in a matching manner, and the fixing nails (23) are slidably arranged in the through hole (2221) and the through holes (211) in a one-to-one correspondence manner.
3. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 2, characterized by comprising the following steps: the inner pipe (22) comprises a first vertical section (221) and an inclined section (222), the first vertical section (221) is communicated with the inclined section (222), and one end, far away from the first vertical section (221), of the inclined section (222) is closed;
the limiting mechanism (24) is tightly propped against the first vertical section (221), and the plurality of nail penetrating holes (2221) are formed in the inclined section (222).
4. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 3, wherein the construction method comprises the following steps: the outer walls of the inclined section (222) and the first vertical section (221) are provided with a plurality of sliding grooves (2222) for the fixing nails (23) to slide in a matching way.
5. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 3, wherein the construction method comprises the following steps: stop gear (24) include holding ring (241) and set up a plurality of gag lever posts (242) in holding ring (241), holding ring (241) cover is established on outer tube (21), gag lever post (242) run through outer tube (21) and support tightly on first vertical section (221).
6. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 5, wherein the construction method comprises the following steps: the limiting rod (242) comprises a fixing rod (2421) and a movable rod (2422) which is arranged in the fixing rod (2421) in a sliding mode, the fixing rod (2421) is connected with the positioning ring (241), and the movable rod (2422) abuts against the first vertical section (221); a spring (2423) is arranged in the fixed rod (2421), one end of the spring (2423) is connected to the fixed rod (2421), and the other end of the spring (2423) is connected to the movable rod (2422); the first vertical section (221) is provided with a plurality of limiting grooves (2211) for the movable rods (2422) to fit and abut into.
7. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 3, wherein the construction method comprises the following steps: the anti-settling pile (2) further comprises a pushing-out mechanism (25) and a nail fixing mechanism (26), the nail fixing mechanism (26) is arranged on the pushing-out mechanism (25), and the nail fixing mechanism (26) is used for fixing the fixing nails (23);
one end, far away from the first vertical section (221), of the inclined section (222) is communicated with a second vertical section (223), one end, far away from the inclined section (222), of the second vertical section (223) is closed, and the second vertical section (223) is used for enabling the nail fixing mechanism (26) to abut into the inclined section;
the pushing-out mechanism (25) is used for pushing the stabilizing nail (23) out of the inner tube (22), and the pushing-out mechanism (25) is arranged on the inner tube (22) through a connecting mechanism (27).
8. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 7, wherein the construction method comprises the following steps: the pushing-out mechanism (25) comprises a vertical pipe (251), a pushing-out barrel (252) connected with the vertical pipe (251) and a nail fixing pipe (253) connected to the pushing-out barrel (252), the connecting mechanism (27) is arranged on the vertical pipe (251), and the nail fixing mechanism (26) is arranged on the nail fixing pipe (253).
9. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 8, wherein the construction method comprises the following steps: the nail fixing mechanism (26) comprises a clamping block (261) and a clamping edge (262), the clamping edge (262) is sleeved and fixed on the nail fixing pipe (253), and a clamping groove (263) for clamping the clamping block (261) is formed between the clamping edge (262) and the nail fixing pipe (253);
the clamping block (261) is arranged on the fixing nail (23), and a block penetrating hole (2223) for the clamping block (261) to penetrate in a matched mode is formed in the inclined section (222).
10. The construction method of the settlement-preventing expressway subgrade in the soft soil area according to claim 8, wherein the construction method comprises the following steps: the connecting mechanism (27) comprises a plurality of clamping plates (271) arranged on the vertical pipe (251), and a plurality of U-shaped holes (2212) for the clamping plates (271) to slide in a matching manner are formed in the first vertical section (221).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856214A (en) * | 2023-09-01 | 2023-10-10 | 创辉达设计股份有限公司 | Highway subgrade anti-sedimentation structure and construction method thereof |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038477A (en) * | 1988-06-15 | 1990-01-03 | 司炳文 | Cinder pile and special construction apparatus thereof |
| DE9404506U1 (en) * | 1994-03-16 | 1994-06-30 | Terramix KG Schotterproduktions-Süd-GmbH & Co., 14641 Nauen | Depth compressors |
| DE4408173A1 (en) * | 1994-03-10 | 1995-09-14 | Moebius Josef Bau | Ground stabilisation method for road=building and other earthworks |
| CN102253665A (en) * | 2011-04-13 | 2011-11-23 | 中交第三航务工程局有限公司 | Pressure automatic control system and method |
| CN104032726A (en) * | 2013-03-04 | 2014-09-10 | 五邑大学 | Post-grouting capped rigid pile and drainage unit combined foundation treatment technology |
| CA2931914A1 (en) * | 2015-07-03 | 2017-01-03 | Bauer Spezialtiefbau Gmbh | Filling tube for producing a column of filling material in the ground as well as device and method related thereto |
| CN108824113A (en) * | 2018-07-20 | 2018-11-16 | 四川瑞通工程建设集团有限公司 | A kind of soft-soil foundation treatment method |
| CN110055845A (en) * | 2019-05-15 | 2019-07-26 | 浙江沧海建设有限公司 | A kind of construction method that highway bridge and culvert two sides are soft soil roadbed |
| CN210368487U (en) * | 2019-06-11 | 2020-04-21 | 徐振萍 | Highway subgrade settlement-preventing device |
| CN111910481A (en) * | 2020-08-22 | 2020-11-10 | 安徽祺泰建设工程有限公司 | Construction method for widening roadbed of highway |
| CN112048955A (en) * | 2020-08-20 | 2020-12-08 | 韶关市新城兴建筑工程有限公司 | Construction method for backfilling gravel roadbed |
| CN212714333U (en) * | 2020-05-12 | 2021-03-16 | 广西业成建筑工程有限公司 | Highway subgrade settlement-preventing device |
| CN112761137A (en) * | 2021-01-21 | 2021-05-07 | 上海市城市建设设计研究总院（集团）有限公司 | Precast pile for enhancing side friction resistance and construction method thereof |
| CN113529518A (en) * | 2021-08-25 | 2021-10-22 | 甘肃省交通规划勘察设计院股份有限公司 | Red bed mudstone improved and reinforced highway subgrade and construction method thereof |
| CN113622237A (en) * | 2021-08-12 | 2021-11-09 | 温州市市政管理中心 | Transverse roadbed reinforcing device |
| CN113622238A (en) * | 2021-08-20 | 2021-11-09 | 广西北投交通养护科技集团有限公司 | Novel highway widened roadbed structure and construction method thereof |
| CN113653995A (en) * | 2021-10-09 | 2021-11-16 | 陈墩煌 | Wisdom street lamp |
-
2022
- 2022-05-10 CN CN202210500584.3A patent/CN114808580B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038477A (en) * | 1988-06-15 | 1990-01-03 | 司炳文 | Cinder pile and special construction apparatus thereof |
| DE4408173A1 (en) * | 1994-03-10 | 1995-09-14 | Moebius Josef Bau | Ground stabilisation method for road=building and other earthworks |
| DE9404506U1 (en) * | 1994-03-16 | 1994-06-30 | Terramix KG Schotterproduktions-Süd-GmbH & Co., 14641 Nauen | Depth compressors |
| CN102253665A (en) * | 2011-04-13 | 2011-11-23 | 中交第三航务工程局有限公司 | Pressure automatic control system and method |
| CN104032726A (en) * | 2013-03-04 | 2014-09-10 | 五邑大学 | Post-grouting capped rigid pile and drainage unit combined foundation treatment technology |
| CA2931914A1 (en) * | 2015-07-03 | 2017-01-03 | Bauer Spezialtiefbau Gmbh | Filling tube for producing a column of filling material in the ground as well as device and method related thereto |
| CN108824113A (en) * | 2018-07-20 | 2018-11-16 | 四川瑞通工程建设集团有限公司 | A kind of soft-soil foundation treatment method |
| CN110055845A (en) * | 2019-05-15 | 2019-07-26 | 浙江沧海建设有限公司 | A kind of construction method that highway bridge and culvert two sides are soft soil roadbed |
| CN210368487U (en) * | 2019-06-11 | 2020-04-21 | 徐振萍 | Highway subgrade settlement-preventing device |
| CN212714333U (en) * | 2020-05-12 | 2021-03-16 | 广西业成建筑工程有限公司 | Highway subgrade settlement-preventing device |
| CN112048955A (en) * | 2020-08-20 | 2020-12-08 | 韶关市新城兴建筑工程有限公司 | Construction method for backfilling gravel roadbed |
| CN111910481A (en) * | 2020-08-22 | 2020-11-10 | 安徽祺泰建设工程有限公司 | Construction method for widening roadbed of highway |
| CN112761137A (en) * | 2021-01-21 | 2021-05-07 | 上海市城市建设设计研究总院（集团）有限公司 | Precast pile for enhancing side friction resistance and construction method thereof |
| CN113622237A (en) * | 2021-08-12 | 2021-11-09 | 温州市市政管理中心 | Transverse roadbed reinforcing device |
| CN113622238A (en) * | 2021-08-20 | 2021-11-09 | 广西北投交通养护科技集团有限公司 | Novel highway widened roadbed structure and construction method thereof |
| CN113529518A (en) * | 2021-08-25 | 2021-10-22 | 甘肃省交通规划勘察设计院股份有限公司 | Red bed mudstone improved and reinforced highway subgrade and construction method thereof |
| CN113653995A (en) * | 2021-10-09 | 2021-11-16 | 陈墩煌 | Wisdom street lamp |
Non-Patent Citations (2)
| Title |
|---|
| 林国平;: "应用弹性力学原理求解立方体混凝土轴心抗拉强度", 安徽建筑, no. 04 * |
| 王芮文;曹妍;欧定福;张贻能;陆云涛;: "高强透水纤维混凝土管碎石芯桩软厚土复合地基处理技术应用研究", 施工技术, no. 22 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856214A (en) * | 2023-09-01 | 2023-10-10 | 创辉达设计股份有限公司 | Highway subgrade anti-sedimentation structure and construction method thereof |
| CN116856214B (en) * | 2023-09-01 | 2023-12-01 | 创辉达设计股份有限公司 | Highway subgrade anti-sedimentation structure and construction method thereof |
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