CN112854186B - Soft soil foundation municipal road treatment method - Google Patents
Soft soil foundation municipal road treatment method Download PDFInfo
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- CN112854186B CN112854186B CN202110313796.6A CN202110313796A CN112854186B CN 112854186 B CN112854186 B CN 112854186B CN 202110313796 A CN202110313796 A CN 202110313796A CN 112854186 B CN112854186 B CN 112854186B
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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
- 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
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
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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
- E02D7/02—Placing by driving
- E02D7/06—Power-driven drivers
- E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
- E02D7/16—Scaffolds or supports for drivers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The application relates to the technical field of road construction, in particular to a method for treating a soft soil foundation municipal road, which comprises the following steps: s1, setting a pile position, placing a pile driver above the pile position, and then positioning the prefabricated pile barrel on the pile driver; s2, starting a pile driver to insert the prefabricated pile barrel into the soft soil foundation; s3, pumping out muddy water in the prefabricated pile barrel through mature water pumping equipment, and then placing a reinforcement cage in the prefabricated pile barrel; and S4, finally, injecting concrete mortar into the prefabricated pile tube, and after the concrete mortar is solidified, solidifying the prefabricated pile tube and the peripheral soft soil foundation into a whole so as to improve the strength of the municipal road with the soft soil foundation. This application has the effect that improves the intensity of soft soil foundation town road.
Description
Technical Field
The application relates to the technical field of road construction, in particular to a method for treating a soft soil foundation municipal road.
Background
The definition of the highway industry standard in China on the soft soil foundation refers to a soft soil layer with low strength and high compression amount, and most of the soft soil layer contains certain organic substances. Because the soft soil has low strength and large sinking and hiding amount, great harm is often brought to road engineering, and if the treatment is improper, great influence is caused to the construction and the use of a road.
In the current municipal road construction process, the soft soil foundation becomes a very important restrictive factor influencing the foundation quality, because the strength and the rigidity of the soft soil foundation are very weak, the safe operation of the municipal road is affected very adversely, and the service life of the road is also affected. The soil-changing method is one of the soft soil foundation treatment methods, and when the thickness of the silt layer is thinner, the foundation treatment can also be carried out by adopting methods of sand loam, lime soil, coarse sand and cement soil changed in the silt layer, adopting open caisson foundation and the like.
In view of the above-mentioned related technologies, the inventor believes that when the silt layer is thick, the staff needs to spend a large amount of manpower to clean the silt layer, and not only the working efficiency is low, but also the firm effect of the soft soil foundation is not good enough.
Disclosure of Invention
In order to improve the strength of the soft soil foundation municipal road, the application provides a treatment method of the soft soil foundation municipal road.
The application provides a soft soil foundation town road processing method, adopts following technical scheme:
a treatment method of soft soil foundation municipal road comprises the following steps:
s1, setting a pile position, placing a pile driver above the pile position, and then positioning the prefabricated pile barrel on the pile driver;
s2, starting a pile driver to insert the prefabricated pile barrel into the soft soil foundation;
s3, pumping out muddy water in the prefabricated pile barrel through mature water pumping equipment, and then placing a reinforcement cage in the prefabricated pile barrel;
and S4, finally, injecting concrete mortar into the prefabricated pile tube, and after the concrete mortar is solidified, solidifying the prefabricated pile tube and the peripheral soft soil foundation into a whole so as to improve the strength of the municipal road with the soft soil foundation.
In the method, the pile driver comprises a base, the prefabricated pile barrel is movably arranged in the base, a hammering mechanism used for driving the prefabricated pile barrel to be inserted into the soft soil foundation is arranged on the base, a fixed barrel is arranged in the prefabricated pile barrel, an insertion rod is movably arranged on the outer side of the fixed barrel, the prefabricated pile barrel is provided with a moving assembly used for driving the insertion rod to move towards the direction far away from the fixed barrel, the top of the fixed barrel is arranged in an open mode, and the reinforcement cage is arranged in the fixed barrel.
Through adopting above-mentioned technical scheme, when needs consolidate the soft soil foundation, the staff places the base on the stake position earlier, then the staff places the prefabricated pile section of thick bamboo on the base again, squeeze into the soft soil foundation through hammering mechanism with the prefabricated pile section of thick bamboo after that, then the staff rethread removes the direction removal of inserted bar towards keeping away from the solid fixed cylinder with the subassembly, the inserted bar passes the prefabricated pile section of thick bamboo this moment and inserts in the soft soil foundation, the staff places the steel reinforcement cage in the solid fixed cylinder through the solid fixed cylinder opening end again after that, inject the concrete into in the solid fixed cylinder again at last, under the effect of concrete, the peripheral soft soil foundation of precast pile this moment is stabilized effectively, and then be favorable to improving the intensity of soft soil foundation town road.
Optionally, the movable assembly comprises a movable rod and a rotary threaded sleeve, the rotary threaded sleeve is rotatably arranged on the outer side of the fixed cylinder, external threads are correspondingly arranged on the side wall of the inserted rod, the inserted rod passes through the external threads and is in threaded connection with the rotary threaded sleeve, the movable rod is arranged on the outer side of the fixed cylinder in a lifting mode, the movable rod faces towards one side of the rotary threaded sleeve and is provided with movable teeth, the outer side of the rotary threaded sleeve is correspondingly provided with rotary teeth, the movable teeth are meshed with the rotary teeth, a guide part for the movable rod to move is arranged in the precast pile cylinder, an inserted block is arranged at the bottom end of the movable rod, and the inserted block is spliced with the bottom of the precast pile cylinder.
Through adopting above-mentioned technical scheme, when the carriage release lever descends, under the effect of removal tooth and rotation tooth, the carriage release lever drives and rotates the thread bush and rotates, simultaneously under the effect of guide, rotate the relative inserted bar of thread bush and rotate, and rotate the thread bush and drive the inserted bar and remove towards the direction of keeping away from the solid fixed cylinder, the inserted bar passes a prefabricated pile section of thick bamboo and extends to outside the prefabricated pile section of thick bamboo lateral wall, and when the carriage release lever descends, the carriage release lever drives the inserted block and runs through the bottom of a prefabricated pile section of thick bamboo and inserts in the soft soil foundation, and then be favorable to improving the stability that a prefabricated pile section of thick bamboo is fixed in the soft soil foundation.
Optionally, the guide member is a guide sleeve, the guide sleeve is arranged on the inner side of the precast pile barrel, one end of the rotary threaded sleeve, which deviates from the fixed barrel, is rotatably connected with the guide sleeve, a guide strip is arranged in the guide sleeve, a guide groove is correspondingly formed in the side wall of the inserted bar along the length direction of the inserted bar, and the guide strip is slidably connected with the guide groove.
Through adopting above-mentioned technical scheme, when rotating the thread bush and rotating, under the effect of gib block, the inserted bar slides along the length direction of gib block, and then is favorable to improving the stability that the inserted bar removed towards the direction of keeping away from fixed section of thick bamboo.
Optionally, the carriage release lever is fixed in through the mounting in the precast pile section of thick bamboo, the mounting is the bolt, the top of carriage release lever runs through the precast pile section of thick bamboo and extends to outside the precast pile section of thick bamboo top, the bolt runs through the carriage release lever and with the carriage release lever is pegged graft, the one end butt of bolt in the top of precast pile section of thick bamboo.
Through adopting above-mentioned technical scheme, when the carriage release lever is fixed to needs, the staff runs through the bolt with the carriage release lever earlier and extends to the outer one end in prefabricated pile section of thick bamboo top, under the self gravity of carriage release lever, the bolt supports tightly in the top of prefabricated pile section of thick bamboo this moment, and then is favorable to improving the stability that the carriage release lever is fixed in the prefabricated pile section of thick bamboo.
Optionally, hammering mechanism sets up in the impact hammer of lift seat one side and is used for driving including setting up lift seat, striking cap, the lift on the base the drive assembly that the impact hammer goes up and down, the striking cap set up in the top of prefabricated pile section of thick bamboo, the bottom of striking cap is followed the slot has been seted up to the vertical direction of striking cap, the carriage release lever extends to the outer one end in prefabricated pile section of thick bamboo top with the slot is pegged graft, drive assembly set up in on the lift seat.
Through adopting above-mentioned technical scheme, when needs peg graft in the soft soil foundation with prefabricated stake section of thick bamboo, the staff aims at the carriage release lever with the slot in the striking cap earlier to locate the top of prefabricated stake section of thick bamboo with the striking cap, then drive the impact hammer through drive assembly and descend towards the direction that is close to the striking cap, under the continuous impact effect of impact hammer, the striking cap drives prefabricated stake section of thick bamboo and inserts in the soft soil foundation this moment, and then is favorable to improving the stability that prefabricated stake section of thick bamboo inserted in the soft soil foundation.
Optionally, the drive assembly includes motor, lead screw and elevator, one side of elevator is followed the lift groove has been seted up to the vertical direction of elevator, the elevator go up and down set up in the lift inslot, one side of elevator run through the lift groove and with the impact hammer is connected, the lead screw rotate set up in the lift inslot, the lead screw runs through the elevator and with elevator threaded connection, the motor set up in the top of elevator, the output shaft of motor run through the elevator and with the lead screw is connected.
Through adopting above-mentioned technical scheme, when staff's starter motor, the output shaft drive lead screw of motor rotates, and the lead screw drives the elevator and descends, and the elevator drives the striking hammer and descends, and then is favorable to improving the stability of striking hammer hammering downwards.
Optionally, a sliding block is arranged on one side, facing the fixed cylinder, of the moving rod, a sliding groove is correspondingly formed in one side of the fixed cylinder along the vertical direction of the fixed cylinder, and the sliding block is arranged in the sliding groove in a sliding mode.
Through adopting above-mentioned technical scheme, when needs drive the carriage release lever decline, the staff breaks away from the top in a prefabricated pile section of thick bamboo with the striking cap earlier, then removes the connection of bolt, then drives the impact hammer and descends again, under the effect of slider, the impact hammer drives the carriage release lever decline this moment, and then is favorable to improving the stability that the vertical direction of a movable rod edge prefabricated pile section of thick bamboo descends.
Optionally, the side wall of the precast pile cylinder is provided with a first through hole in a penetrating manner, the side wall of the fixed cylinder is provided with a second through hole in a penetrating manner, and the first through hole is communicated with the second through hole.
Through adopting above-mentioned technical scheme, when the staff pours into the concrete mortar into towards the solid fixed cylinder through the open end of solid fixed cylinder, the concrete mortar was perforated and oozed the soft soil foundation through first perforation and second respectively this moment in, when the concrete mortar solidifies the back, the precast pile section of thick bamboo and soft soil foundation this moment knot as an organic whole, and then is favorable to improving the intensity of the town road of soft soil foundation.
Optionally, be provided with on the base and be used for the location the locating component of a prefabricated pile section of thick bamboo, locating component includes a plurality of locating clips, screw rod and lock nut, keep away from on the base one side of lift seat is provided with the supporting seat, the locating clip is established in the supporting seat orientation one side of a prefabricated pile section of thick bamboo, the screw rod set up in the locating clip deviates from one side of a prefabricated pile section of thick bamboo, the screw rod passes the supporting seat extends to outside the supporting seat lateral wall, lock nut with the screw rod extends to an end threaded connection outside the supporting seat lateral wall, the locating clip orientation one side of a prefabricated pile section of thick bamboo is provided with the locating wheel.
Through adopting above-mentioned technical scheme, when the staff places a prefabricated pile section of thick bamboo on the base, the staff rotates lock nut earlier, and lock nut passes through the screw rod and drives the direction removal of location clamp court near a prefabricated pile section of thick bamboo, and the locating wheel butt is in the lateral wall of a prefabricated pile section of thick bamboo this moment, under the effect of a plurality of location clamps, and then is favorable to improving the stability that a prefabricated pile section of thick bamboo inserted in the soft soil foundation.
To sum up, the application comprises the following beneficial technical effects:
when needs consolidate the soft soil foundation, the staff places the base on the stake position earlier, then the staff places the prefabricated pile section of thick bamboo on the base again, squeeze into the soft soil foundation through hammering mechanism with the prefabricated pile section of thick bamboo after that, then the staff rethread removes the direction removal that the solid fixed cylinder was faced away from to the inserted bar through the removal subassembly, the inserted bar passes the prefabricated pile section of thick bamboo this moment and inserts in the soft soil foundation, after that the staff places the solid fixed cylinder through the solid fixed cylinder opening end with the steel reinforcement cage again in, pour into the concrete into in the solid fixed cylinder again at last, under the effect of concrete, the peripheral soft soil foundation of precast pile this moment obtains stabilizing effectively, and then be favorable to improving the intensity of soft soil foundation town road.
Drawings
FIG. 1 is a schematic view of the overall structure of the soft soil foundation town road treatment method of the present application.
Fig. 2 is a partial structural schematic view of the precast pile cylinder and the conical head of the present application.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a schematic view of the connection of the impact cap to the pre-cast pile casing.
Fig. 5 is an enlarged view of a portion B of fig. 4.
Fig. 6 is a schematic view of the overall structure of the positioning assembly.
Description of reference numerals: 1. a pile driver; 11. a reinforcement cage; 12. a base; 121. pile holes; 2. prefabricating a pile barrel; 21. a conical head; 22. a movement space; 23. a jack; 24. a butt joint groove; 25. a first perforation; 26. filling the hole; 3. a fixed cylinder; 31. a chute; 32. a second perforation; 4. inserting a rod; 41. an external thread; 42. a guide groove; 5. a travel bar; 51. a slider; 52. moving the teeth; 53. inserting a block; 54. a bolt; 55. fixing grooves; 6. rotating the threaded sleeve; 61. rotating the teeth; 7. a guide sleeve; 71. a guide strip; 8. a lifting seat; 81. a crash cap; 811. a slot; 82. an impact hammer; 83. a motor; 84. a screw rod; 85. a lifting block; 86. a lifting groove; 87. a support bar; 9. a supporting seat; 91. positioning clips; 92. a screw; 93. locking the nut; 94. and (5) positioning the wheel.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
Example (b):
referring to fig. 1, a method for treating a soft soil foundation town road includes the following steps:
s1, the staff sets the pile positions according to the actual situation of the soft soil foundation town road, and then moves the pile driver 1 to one of the pile positions;
s2, then vertically placing the prefabricated pile barrel 2 on the pile driver 1 by a worker, starting the pile driver 1, inserting the pile driver 1 into the soft soil foundation by the prefabricated pile barrel 2;
s3, pumping muddy water in the prefabricated pile barrel 2 by using mature water pumping equipment, drying, and finally placing into the reinforcement cage 11;
s4, finally, the worker injects concrete mortar into the prefabricated pile barrel 2, the concrete mortar seeps out of the soft soil foundation through the prefabricated pile barrel 2, and when the concrete mortar is solidified, the prefabricated pile barrel 2 and the soft soil foundation are solidified into a whole, so that the strength of the soft soil foundation municipal road is improved.
In particular, with reference to fig. 1 and 2, pile driver 1 comprises a base 12. The base 12 is horizontally arranged, and the base 12 is fixedly arranged on the pile position. The prefabricated pile cylinder 2 is vertically arranged, and the prefabricated pile cylinder 2 is cylindrical. Pile hole 121 has been seted up along the vertical direction of base 12 to top one side of base 12, and the coaxial fixed conical head 21 that is provided with in bottom of prefabricated pile section of thick bamboo 2, and prefabricated pile section of thick bamboo 2 and conical head 21 peg graft with pile hole 121 respectively, and are provided with on the base 12 and are used for driving the hammering mechanism that prefabricated pile section of thick bamboo 2 inserted in the soft soil foundation. The prefabricated pile section of thick bamboo 2 internal fixation is provided with a solid fixed cylinder 3, and a solid fixed cylinder 3 is the cuboid form, and the top of a solid fixed cylinder 3 is uncovered setting, and the outside of a solid fixed cylinder 3 encloses with the inboard of prefabricated pile section of thick bamboo 2 and closes and form removal space 22. Four groups of the inserting rods 4 are arranged, the four groups of the inserting rods 4 are respectively movably arranged in the moving space 22, and the four groups of the inserting rods 4 are respectively distributed in an annular array along the vertical direction of the fixed cylinder 3. Three insertion rods 4 are arranged in each group, and the three insertion rods 4 are distributed at intervals along the vertical direction of the fixed cylinder 3. And a moving assembly for respectively driving the four groups of insertion rods 4 to move towards the direction far away from the fixed cylinder 3 is arranged in the precast pile cylinder 2. The reinforcement cage 11 is vertical setting, and the reinforcement cage 11 is pegged graft in the solid fixed cylinder 3 through the open end of solid fixed cylinder 3.
Specifically, referring to fig. 2 and 3, in order to improve the stability of the movement of the plurality of sets of the insertion rods 4 respectively in the direction away from the fixed cylinder 3, the number of the moving assemblies is the same as that of the insertion rods 4, and the moving assemblies include moving rods 5 and rotating thread sleeves 6. The rotary threaded sleeve 6 is arranged in the moving space 22, the rotary threaded sleeve 6 is horizontally arranged, one end of the rotary threaded sleeve 6 is rotatably connected with the side wall of the fixed cylinder 3, and the other end of the rotary threaded sleeve 6 is a free end. The side wall of the inserted bar 4 is correspondingly provided with an external thread 41, and the inserted bar 4 is in threaded connection with the rotary threaded sleeve 6 through the external thread 41. The movable rod 5 is vertical, and the movable rod 5 sets up in the lateral wall of the fixed cylinder 3, and the fixed slider 51 that is provided with of one side of movable rod 5 orientation fixed cylinder 3, and slider 51 is the dovetail. The top of the fixed cylinder 3 is correspondingly provided with a sliding groove 31 along the vertical direction of the fixed cylinder 3, and the sliding block 51 is connected with the sliding groove 31 in a sliding manner.
The side of the moving rod 5 facing the rotating threaded sleeve 6 is fixedly provided with moving teeth 52, the side wall of the rotating threaded sleeve 6 is correspondingly and fixedly provided with rotating teeth 61, and the moving teeth 52 on the moving rod 5 are meshed with the rotating teeth 61 on the side wall of the rotating threaded sleeve 6.
Referring to fig. 2 and 3, in order to improve the stability of the insertion rod 4 moving away from the fixed cylinder 3 relative to the rotating threaded sleeve 6, the precast pile cylinder 2 is provided with a guide member, which is a guide sleeve 7. The guide sleeve 7 is horizontally arranged, the guide sleeve 7 is arranged in the moving space 22, one end of the guide sleeve 7 is fixedly connected with the inner wall of the precast pile barrel 2, and the other end of the guide sleeve 7 is rotatably connected with the free end of the rotary threaded sleeve 6. The inner side of the guide sleeve 7 is fixedly provided with a guide strip 71, one end of the inserted bar 4 is correspondingly provided with a guide groove 42 along the length direction of the inserted bar 4, and the guide strip 71 is slidably arranged in the guide groove 42.
When the movable rod 5 descends along the vertical direction of the fixed cylinder 3, the movable rod 5 drives the plurality of rotating thread sleeves 6 to rotate respectively, the rotating thread sleeves 6 drive the inserting rod 4 to move along the guide groove 42 towards the direction far away from the fixed cylinder 3, and the inserting rod 4 penetrates through the precast pile cylinder 2 and extends out of the side wall of the precast pile cylinder 2.
It should be noted that, referring to fig. 2, an insertion block 53 is fixedly disposed at the bottom end of the moving rod 5, the insertion hole 23 is correspondingly disposed at the bottom of the precast pile casing 2 along the vertical direction of the precast pile casing 2, and the moving rod 5 and the insertion block 53 are respectively inserted into the insertion hole 23. When traveling bar 5 descends and when insert rod 4 extends to the outside of the side wall of precast pile cylinder 2, insert block 53 is inserted through precast pile cylinder 2 and into the soft ground.
It should be noted that referring to fig. 4 and 5, to facilitate the movement of rod 5 into its initial position within pre-cast pile casing 2, pre-cast pile casing 2 is provided with a fastener, which is latch 54. The top of carriage release lever 5 passes the top of prefabricated pile section of thick bamboo 2 and extends to outside the top of prefabricated pile section of thick bamboo 2, and the fixed slot 55 has been seted up along the length direction of carriage release lever 5 to one side that the carriage release lever 5 top deviates from fixed section of thick bamboo 3. The bolt 54 is horizontally arranged, the bolt 54 is inserted into the fixing groove 55, and one end of the bolt 54 facing away from the fixing cylinder 3 penetrates through the fixing groove 55 and extends out of the side wall of the moving rod 5. The top of the precast pile barrel 2 is provided with a butt groove 24 along the vertical direction of the precast pile barrel 2, and the bolt 54 extends to the outer end of the side wall of the moving rod 5 to be inserted into the butt groove 24. When the worker inserts the plug 54 into the fixing groove 55, and under the action of the gravity of the moving rod 5, the two ends of the plug 54 are pressed against the abutting grooves 24.
Specifically, referring to fig. 1 and 4, in order to improve the stability of inserting the precast pile barrel 2 into a soft soil foundation, the hammering mechanism includes a lifting base 8, an impact cap 81, and an impact hammer 82. The lifting seat 8 is vertically arranged, and the lifting seat 8 is fixedly arranged on one side of the top of the base 12 through a support rod 87. The impact hammer 82 is cylindrical, and the impact hammer 82 is disposed on one side of the lifting seat 8 facing the pile position in a lifting manner. The impact cap 81 is correspondingly cylindrical, and the diameter of the impact cap 81 is consistent with the diameter of the precast pile casing 2. The bottom end of the impact cap 81 is correspondingly provided with a slot 811 along the vertical direction of the impact cap 81, and one end of the moving rod 5 extending to the outside of the top of the precast pile cylinder 2 is inserted into the slot 811.
Referring to fig. 1, in order to improve the stability of the lifting of the striking hammer 82, the lifting base 8 is provided with a driving assembly including a motor 83, a lead screw 84, and a lifting block 85. Lifting groove 86 is opened along the vertical direction of lifting seat 8 towards one side of stake position to lifting seat 8, and elevator 85 removes and sets up in lifting groove 86. One side of the lifting block 85 facing the pile position passes through the lifting groove 86 and extends out of the side wall of the lifting seat 8, and the lifting block 85 is fixedly connected with the impact hammer 82. The screw 84 is vertically arranged, the screw 84 is rotatably arranged in the lifting groove 86, and the screw 84 penetrates through the lifting block 85 and is in threaded connection with the lifting block 85. The motor 83 is fixedly arranged at the top of the lifting seat 8, an output shaft of the motor 83 penetrates through the top of the lifting seat 8 and extends into the lifting groove 86, and the output shaft of the motor 83 is coaxially and fixedly connected with the screw 84.
When the staff need insert precast pile section of thick bamboo 2 in the soft soil foundation, the staff will be with striking cap 81 lid locating precast pile section of thick bamboo 2's top earlier, and the carriage release lever 5 is pegged graft in slot 811 this moment. Then, the worker starts the motor 83 again, the output shaft of the motor 83 drives the screw rod 84 to rotate, the screw rod 84 drives the lifting block 85 to descend, the lifting block 85 drives the impact hammer 82 to descend, at the moment, the impact hammer 82 impacts the impact cap 81 downwards, and the impact cap 81 drives the prefabricated pile barrel 2 to be inserted into the soft soil foundation.
Specifically, referring to fig. 1 and 6, in order to improve the stability of inserting the precast pile barrel 2 into the soft soil foundation in the vertical direction, a positioning assembly is provided on the base 12, and the positioning assembly includes a positioning clamp 91, a screw 92 and a lock nut 93. One side of the top of the base 12, which is far away from the lifting seat 8, is fixedly provided with two supporting seats 9, and the two supporting seats 9 are respectively located at two sides of the precast pile barrel 2. The number of the positioning clamps 91 is correspondingly two, and the two positioning clamps 91 are used for clamping the precast pile cylinder 2. The two positioning clips 91 are arc-shaped, and the two positioning clips 91 are adapted to the side wall of the prefabricated pile casing 2. Screw 92 is the level setting, and one side fixed connection that the one end of screw 92 deviates from precast pile section of thick bamboo 2 with locating clip 91, and the other end of screw 92 passes supporting seat 9 and extends outside the lateral wall of supporting seat 9. The screw 92 is connected with the supporting seat 9 in a sliding way. Lock nut 93 sets up in the one side that the supporting seat 9 deviates from precast pile section of thick bamboo 2, and lock nut 93 and screw rod 92 extend to the outer one end threaded connection of supporting seat 9 lateral wall.
It is noted that, referring to fig. 6, to reduce the friction between the positioning clamp 91 and the precast pile cylinder 2, a positioning wheel 94 is provided to rotate the positioning clamp 91 toward the side of the precast pile cylinder 2. When the worker tightens the locking nut 93, the locking nut 93 drives the positioning clamp 91 to move towards the direction close to the precast pile barrel 2 through the screw 92, and at this time, the positioning wheel 94 abuts against the side wall of the precast pile barrel 2.
It should be noted that, referring to fig. 2, in order to facilitate the cement mortar to seep out of the precast pile barrel 2, a plurality of first through holes 25 penetrate through the side wall of the precast pile barrel 2 along the diameter direction of the precast pile barrel 2, and the plurality of first through holes 25 are respectively distributed in an annular array along the vertical central axis of the precast pile barrel 2. The lateral wall of the fixed cylinder 3 is provided with a plurality of second through holes 32 along the wall thickness direction of the fixed cylinder 3 in a penetrating manner, the plurality of second through holes 32 are distributed in an annular array manner along the vertical central axis of the fixed cylinder 3 respectively, and the first through holes 25 are communicated with the second through holes 32.
It is worth mentioning that referring to fig. 2, in order to facilitate the worker to inject the concrete mortar into the precast pile cylinder 2, the top of the precast pile cylinder 2 is provided with a filling hole 26 along the vertical direction of the precast pile cylinder 2. The operator can inject concrete mortar into the precast pile cylinder 2 through the filling hole 26 and the open end of the fixed cylinder 3, respectively.
The working principle of the soft soil foundation municipal road treatment method is as follows:
when the prefabricated pile barrel 2 needs to be inserted into a soft soil foundation, a worker vertically places the prefabricated pile barrel 2 on the base 12 and aligns to a pile position. Then, the worker tightens the locking nut 93 again, and the locking nut 93 drives the positioning clamp 91 to move towards the direction close to the precast pile casing 2 through the screw 92, and at this time, the positioning wheel 94 on the positioning clamp 91 abuts against the side wall of the precast pile casing 2. Then, the worker covers the impact cap 81 on the top of the prefabricated pile barrel 2, then starts the motor 83, the output shaft of the motor 83 drives the screw rod 84 to rotate, the screw rod 84 drives the lifting block 85 to descend, and the lifting block 85 drives the impact hammer 82 to impact the impact cap 81. At this time, the impact cap 81 drives the precast pile barrel 2 to be inserted into the soft foundation.
When the claw resultant force of the prefabricated pile barrel 2 on the soft soil foundation needs to be improved, a worker firstly breaks away the impact cap 81 from the top of the prefabricated pile barrel 2, then pulls out the plug 54, then the worker restarts the motor 83, the motor 83 finally drives the impact hammer 82 to descend, and at the moment, the impact hammer 82 impacts the movable rod 5 and drives the movable rod 5 to move along the vertical direction of the prefabricated pile barrel 2. The moving rod 5 drives the inserting block 53 to be inserted through the bottom of the prefabricated pile barrel 2 and inserted into the soft soil foundation. Meanwhile, the movable rod 5 drives the rotary threaded sleeve 6 to rotate, the rotary threaded sleeve 6 drives the inserted rod 4 to move towards the direction away from the fixed cylinder 3 under the action of the guide strip 71, and the inserted rod 4 penetrates through the precast pile cylinder 2 and is inserted into the soft soil foundation.
When the intensity of soft soil foundation needs to be improved, the worker places the reinforcement cage 11 into the fixing cylinder 3 through the open end of the fixing cylinder 3, then the worker injects concrete mortar into the prefabricated pile cylinder 2 through the filling hole 26 and the open end of the fixing cylinder 3, and the concrete mortar seeps out of the prefabricated pile cylinder 2 through the first through hole 25. When the concrete mortar is solidified, the prefabricated pile barrel 2 and the soft soil foundation are solidified into a whole.
In conclusion, the precast pile barrel 2 and the soft soil foundation are solidified into a whole, so that the strength of the municipal road of the soft soil foundation is 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 (7)
1. A pile driver applied to a soft soil foundation municipal road treatment method is characterized in that: the method comprises the following steps:
s1, setting a pile position, placing the pile driver (1) above the pile position, and then positioning the prefabricated pile barrel (2) on the pile driver (1);
s2, starting the pile driver (1) to insert the prefabricated pile barrel (2) into the soft soil foundation;
s3, pumping muddy water in the prefabricated pile barrel (2) through mature water pumping equipment, and then placing the reinforcement cage (11) in the prefabricated pile barrel (2);
s4, finally, injecting concrete mortar into the prefabricated pile cylinder (2), and after the concrete mortar is solidified, solidifying the prefabricated pile cylinder (2) and the surrounding soft soil foundation into a whole so as to improve the strength of the municipal road with the soft soil foundation;
in the method, the pile driver (1) comprises a base (12), the prefabricated pile barrel (2) is movably arranged in the base (12), a hammering mechanism for driving the prefabricated pile barrel (2) to be inserted into a soft soil foundation is arranged on the base (12), a fixed barrel (3) is arranged in the prefabricated pile barrel (2), an inserting rod (4) is movably arranged on the outer side of the fixed barrel (3), a moving assembly for driving the inserting rod (4) to move towards a direction far away from the fixed barrel (3) is arranged on the prefabricated pile barrel (2), the top of the fixed barrel (3) is arranged in an open manner, and the reinforcement cage (11) is arranged in the fixed barrel (3);
the movable assembly comprises a movable rod (5) and a rotary threaded sleeve (6), the rotary threaded sleeve (6) is rotatably arranged on the outer side of the fixed cylinder (3), an external thread (41) is correspondingly arranged on the side wall of the inserted rod (4), the inserted rod (4) is in threaded connection with the rotary threaded sleeve (6) through the external thread (41), the movable rod (5) is arranged on the outer side of the fixed cylinder (3) in a lifting mode, a movable tooth (52) is arranged on one side, facing the rotary threaded sleeve (6), of the movable rod (5), a rotary tooth (61) is correspondingly arranged on the outer side of the rotary threaded sleeve (6), the movable tooth (52) is meshed with the rotary tooth (61), a guide part for the inserted rod (4) to move is arranged in the precast pile cylinder (2), an inserted block (53) is arranged at the bottom end of the movable rod (5), the inserting block (53) is inserted into the bottom of the prefabricated pile barrel (2);
the guide piece is uide bushing (7), uide bushing (7) set up in precast pile section of thick bamboo (2) are inboard, rotate thread bush (6) and deviate from the one end of a fixed section of thick bamboo (3) with uide bushing (7) rotate to be connected, be provided with gib block (71) in uide bushing (7), the lateral wall of inserted bar (4) is followed the length direction of inserted bar (4) corresponds has seted up guide way (42), gib block (71) with guide way (42) sliding connection.
2. The pile driver applied to the treatment method of the soft soil foundation municipal road as claimed in claim 1, wherein: the utility model discloses a precast pile section of thick bamboo, including prefabricated pile section of thick bamboo (2), carriage release lever (5) are fixed in through the mounting in prefabricated pile section of thick bamboo (2), the mounting is bolt (54), the top of carriage release lever (5) is run through prefabricated pile section of thick bamboo (2) and extend to outside prefabricated pile section of thick bamboo (2) top, bolt (54) run through carriage release lever (5) and with carriage release lever (5) are pegged graft, the one end butt of bolt (54) in the top of prefabricated pile section of thick bamboo (2).
3. The pile driver applied to the treatment method of the soft soil foundation municipal road as claimed in claim 1, wherein: hammering mechanism sets up in striking hammer (82) of lift seat (8) one side and is used for driving including setting up lift seat (8), striking cap (81), the lift on base (12) striking hammer (82) of lift seat (8) one side, striking cap (81) set up in the top of a prefabricated pile section of thick bamboo (2), the bottom of striking cap (81) is followed slot (811) have been seted up to the vertical direction of striking cap (81), carriage release lever (5) extend to the outer one end in a prefabricated pile section of thick bamboo (2) top with slot (811) are pegged graft, drive assembly set up in on lift seat (8).
4. The pile driver applied to the treatment method of the soft soil foundation municipal road as claimed in claim 3, wherein: the driving assembly comprises a motor (83), a screw rod (84) and a lifting block (85), a lifting groove (86) is formed in one side of the lifting seat (8) in the vertical direction of the lifting seat (8), the lifting block (85) is arranged in the lifting groove (86) in a lifting mode, one side of the lifting block (85) penetrates through the lifting groove (86) and is connected with the impact hammer (82), the screw rod (84) is rotatably arranged in the lifting groove (86), the screw rod (84) penetrates through the lifting block (85) and is in threaded connection with the lifting block (85), the motor (83) is arranged at the top of the lifting seat (8), and an output shaft of the motor (83) penetrates through the lifting seat (8) and is connected with the screw rod (84).
5. The pile driver applied to the treatment method of the soft soil foundation municipal road as claimed in claim 1, wherein: the utility model discloses a fixed cylinder (3) of movable rod (5) orientation one side of fixed cylinder (3) is provided with slider (51), one side of fixed cylinder (3) is followed the vertical direction correspondence of fixed cylinder (3) has seted up spout (31), slider (51) slide set up in spout (31).
6. The pile driver applied to the treatment method of the soft soil foundation municipal road as claimed in claim 1, wherein: the side wall of the prefabricated pile cylinder (2) is provided with a first through hole (25) in a penetrating mode, the side wall of the fixed cylinder (3) is provided with a second through hole (32) in a penetrating mode, and the first through hole (25) is communicated with the second through hole (32).
7. The pile driver applied to the treatment method of the soft soil foundation municipal road as claimed in claim 3, wherein: the base (12) is provided with a positioning component for positioning the precast pile cylinder (2), the positioning component comprises a plurality of positioning clamps (91), a screw rod (92) and a locking nut (93), a supporting seat (9) is arranged on one side of the base (12) far away from the lifting seat (8), the positioning clamp (91) is arranged on one side of the supporting seat (9) facing the precast pile cylinder (2), the screw (92) is arranged on one side of the positioning clamp (91) departing from the precast pile cylinder (2), the screw rod (92) penetrates through the supporting seat (9) and extends out of the side wall of the supporting seat (9), the locking nut (93) is in threaded connection with one end of the screw rod (92) extending out of the side wall of the supporting seat (9), and a positioning wheel (94) is arranged on one side of the positioning clamp (91) facing the precast pile cylinder (2).
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| CN202110313796.6A CN112854186B (en) | 2021-03-24 | 2021-03-24 | Soft soil foundation municipal road treatment method |
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| CN202110313796.6A CN112854186B (en) | 2021-03-24 | 2021-03-24 | Soft soil foundation municipal road treatment method |
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| CN112854186B true CN112854186B (en) | 2022-02-11 |
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| CN113981982B (en) * | 2021-11-05 | 2023-05-26 | 华能洋浦热电有限公司 | Lowering device for pile foundation reinforcement cage |
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Address after: 529500, 8th Floor, Main Building of Guoyuan Plaza, No. 68 Xiping Road, Jiangcheng District, Yangjiang City, Guangdong Province (Residence Application) 529500 Patentee after: Guangdong Xinjiang Yong'an Construction Group Co.,Ltd. Address before: 529500 the eighth floor of the main building of Guoyuan Plaza, 68 Xiping Road, Jiangcheng District, Yangjiang City, Guangdong Province Patentee before: Guangdong Xinjiang Yongan construction engineering Co.,Ltd. |