CN114150652A - Tamping and compacting vibration device for filling soil around inclinometer pipe and construction method thereof - Google Patents
Tamping and compacting vibration device for filling soil around inclinometer pipe and construction method thereof Download PDFInfo
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- CN114150652A CN114150652A CN202111465975.8A CN202111465975A CN114150652A CN 114150652 A CN114150652 A CN 114150652A CN 202111465975 A CN202111465975 A CN 202111465975A CN 114150652 A CN114150652 A CN 114150652A
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- tamping
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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
- E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
- E02D3/068—Vibrating apparatus operating with systems involving reciprocating masses
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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
- E02D33/00—Testing foundations or foundation structures
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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
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a soil filling and tamping compaction device used around an inclinometer pipe and a construction method thereof, relates to the technical field of engineering monitoring, and can solve the problems of pipeline deviation in the construction process and foundation settlement in an operation and maintenance stage caused by unqualified pipeline backfill compactness, and the technical scheme is as follows: the device comprises a guide mechanism and a tamping vibration mechanism, wherein the guide mechanism is connected with the tamping vibration mechanism and used for driving the tamping vibration mechanism to move in an inclinometer pipe; the tamping vibration mechanism comprises a front carrier, a rear carrier, vibrators and a joint change assembly, wherein the vibrators are mounted at the end parts of the front carrier and the rear carrier, and the joint change assembly is arranged between the two vibrators and used for positioning the tamping vibration mechanism in a pipeline of the inclinometer pipe. The invention can carry out vibration compaction and tamping on sandy soil filled outside the pipeline in the pipeline, and the tamping vibration mechanism can move along the inside of the pipeline to sequentially tamp each position outside the pipeline, thereby ensuring the sandy soil to be tightly filled and improving the tamping quality.
Description
Technical Field
The invention relates to the technical field of engineering monitoring, in particular to a filling and tamping vibration-compaction device for surrounding an inclinometer pipe and a construction method thereof.
Background
After the inclinometer pipe is drilled, the aperture of the drilled hole is larger than the outer diameter of the inclinometer pipe, and in order to solve the problems that a gap exists or a cavity exists in the pipeline backfilling process, the gap between the hole and the outer wall of the pipeline needs to be filled with fillers such as fine sand and the like, measurement is performed after solidification is stable, the fillers need to be supplemented for many times during the period, and the use time is long.
In order to facilitate the tamping operation, an attached vibrator is usually arranged outside the two ends of the pipeline, and the tamping action is achieved through the vibrator. The vibrator adopting the outer side attachment type arrangement has the following defects that 1, the vibrator adopting the outer side attachment type arrangement is not suitable for a narrow space position; 2. because the inclinometer pipe is long, and the vibrators are not uniformly distributed on the pipe, the individual positions of the pipe are not filled in place, a gap is formed between the pipe and the drilled hole, and a cavity generated by the fine sand not filled in place can damage the structural strength of the fine sand filling, so that the pipe is easy to displace, and later settlement deformation is caused.
The existing means can also adopt a water ramming method for filling, but the slope operation has the problems of inconvenient transportation, long time consumption, safety and the like. Under the condition that the pipeline is backfilled and tamped to an unsettled position, the pipeline construction process is easy to deviate or the pipe joints are easy to shake in the operation and maintenance stage, and monitoring and construction are not facilitated.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to provide a tamping and compacting device and a tamping and compacting method for filling soil around an inclinometer pipe, which can tamp fine sand filled outside the pipeline inside the pipeline, and a tamping and vibrating mechanism can move along the inside of the pipeline to sequentially tamp each position outside the pipeline, so that the fine sand is ensured to be filled in place, the structural strength is improved, the tamping quality is improved, and the condition that a cavity exists in the pipeline during backfilling is avoided.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a tamping and compacting device for filling soil around an inclinometer pipe comprises a guide mechanism and a tamping and vibrating mechanism, wherein the guide mechanism is connected with the tamping and vibrating mechanism and used for driving the tamping and vibrating mechanism to move in the inclinometer pipe;
the tamping vibration mechanism comprises a front carrier, a rear carrier, vibrators and a joint change assembly, wherein one vibrator is arranged at the end part of the front carrier and the end part of the rear carrier, and the joint change assembly is arranged between the two vibrators and is used for positioning the tamping vibration mechanism in a pipeline of the inclinometer pipe.
Preferably, the knuckle assembly comprises a knuckle driving part and a deformable rubber pipe, the knuckle driving part is fixed between the two vibrators, the rubber pipe is sleeved on the knuckle driving part, two ends of the rubber pipe are respectively sleeved with the two vibrators, and the rubber pipe can be stressed to stretch or extrude under the driving of the knuckle driving part.
Preferably, the variable joint driving part comprises a hollow shaft motor, a screw rod and a fixing frame, the upper end of the fixing frame is fixed on the vibrator connected with the front carrier, the hollow shaft motor is arranged in the fixing frame, the rod body of the screw rod is connected with the output end of the hollow shaft motor, the lower end of the screw rod penetrates through the fixing frame and then is fixed on the vibrator connected with the rear carrier, and the upper end of the screw rod moves up and down in the fixing frame under the driving of the hollow shaft motor.
Preferably, the vibrator is a brushless eccentric wheel motor, and an adjusting module for adjusting the vibration intensity is arranged on the vibrator.
Preferably, the guide mechanism comprises an electric walking assembly, and the electric walking assembly is mounted on both the front carrier and the rear carrier;
the electric walking assembly comprises a connecting frame, a walking driving part and a pair of electric small wheels, wherein the connecting frame is arranged at the middle part of the front carrier and the middle part of the rear carrier, the electric small wheels are connected to the two ends of the connecting frame respectively, and the output end of the walking driving part is connected to the center of the electric small wheels and used for driving the electric small wheels to rotate.
Preferably, the guiding mechanism comprises a descending assembly, the descending assembly comprises an electric winch with a controller and a power supply and a supporting tripod for mounting the electric winch, the supporting tripod is erected on an upper end pipe orifice of the inclinometer pipe, and the electric winch is connected with the tamping vibration mechanism through a connecting rope.
Preferably, the front carrier and the rear carrier are both provided with guide wheels.
Preferably, a displacement sensor is arranged on the tamping vibration mechanism.
Preferably, the tamping vibration mechanism is further provided with an ultrasonic detection device, the ultrasonic detection device is provided with a transceiver, and the ultrasonic detection device is arranged at the end part of the vibrator and used for detecting the filling condition of the filler around the pipe body of the inclinometer.
The application also provides a construction method for installing and filling the inclinometer pipe, which is assisted by the tamping and vibration sealing device for filling and comprises the following steps:
s1, preparation for construction
After earth excavation near the measurement point position is finished, repairing a slope according to the designed slope rate, and leveling and tamping a slope platform;
s2, drilling and cleaning of drilling
Drilling at a measuring site, continuing to stabilize the drill bit for 1-2 minutes after the drill hole reaches the designed depth, cleaning sediments and water body viscosity in the wall of the drill hole after the drilling is finished, using air with the air pressure of 0.2-0.4 MPa to completely remove rock powder and water body in the drill hole out of the hole, and stopping cleaning the hole after no dust is blown out for 2-3 minutes;
s3 pore diameter and pore depth inspection
Determining the hole depth according to a design drawing and a construction scheme, wherein the hole depth is not less than the depth of the potential sliding surface;
s4, mounting of inclinometer pipe
Sleeving a cover on the bottom of the inclinometer before mounting, aligning guide grooves at joints of the inclinometer with each other, screwing down the guide grooves by using screws, coating glue on the pipe wall of each joint of the inclinometer, and wrapping by using an adhesive tape; when the inclinometer pipe is buried in the drill hole, the direction of the guide groove in the inclinometer pipe is consistent with the potential landslide direction of the side slope, and the pipe orifice at the upper end of the inclinometer pipe is 30-50cm higher than the ground;
s5 filling inclinometer pipe
S51, selecting one or more of sandy soil, fine sand and bentonite balls as filler of the inclinometer pipe, wherein the particle size of the filler is less than 1/3-1/4 of the size of a gap between the outer wall of the inclinometer pipe and a drill hole;
s52, adopting a small quantity of multiple packing principles, and uniformly blanking the packing clockwise along the length direction of the inclinometer pipe;
s53, in the discharging process, the tamping vibration mechanism is placed downwards into the inclinometer pipe through the guide mechanism, and the ultrasonic detection device is started to detect the filling condition of the filler around the inclinometer pipe in the sequence from top to bottom; when the existence of the gap is detected, the tamping vibration mechanism is positioned at the position with the gap, the tamping vibration mechanism is started to dredge, and the position is marked;
s54, when the tamping vibration mechanism is placed at the bottom of the inclinometer pipe and the filler is filled to 1.5-1.8 times of the length of the tamping vibration mechanism, starting the tamping vibration mechanism to vibrate;
s55, sequentially starting the vibrators on the rear carrier and the front carrier in sequence, starting vibrating with a first-gear strength, monitoring by using the displacement sensor in the vibrating process, increasing the gears of the vibrators for vibrating when the displacement does not change any more until the vibrators reach the maximum gear, the displacement sensor monitors that the displacement data does not change any more and the ultrasonic wave detects that no gap exists, and moving the tamping vibration mechanism to vibrate the next position;
s56, repeating the steps, and blanking the gap between the drill hole and the inclinometer pipe synchronously in the vibrating process;
s57, when the ultrasonic detection device at the top detects that the filler falls slowly or is not discharged, stopping vibrating, slowly lifting the tamping vibration mechanism, searching for a blocking position, and repeating construction until the pipe orifice position of the inclinometer pipe is reached, so that vibrating operation can be completed;
s6 maintenance of pipe orifice of inclinometer pipe
And after the vibration operation is finished and the filler is solidified and has no settlement change, excavating a foundation pit with the depth of not less than 20cm and the length and width of not less than 30cm and 30cm near the pipe opening of the inclinometer pipe, installing a template, and setting a side slope with the top surface of the concrete 20cm higher than the ground and not less than 3 percent.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. inside the deviational survey pipe pipeline can be put into to the vibration mechanism of ramming, move along the inside length direction of deviational survey pipe through guiding mechanism drive ramming vibration mechanism, combine the change festival subassembly to make certain position that the vibration mechanism of ramming is located the pipeline carry out the operation of vibrating, can tamp each position around the deviational survey pipe in proper order for the stopping is filled and is targetting in place, avoids appearing the hollow condition, has improved the structural strength that the stopping was filled on the whole, has improved measurement accuracy.
2. Utilize the reverse activity of carrier and back carrier before the driving of festival change or activity in opposite directions for the rubber tube is stretched or is extruded and then changes its thickness, so that the pipe inner wall of deviational survey pipe can be supported tightly to the periphery side of rubber tube, ensures vibrator and pipe inner wall full contact, is applicable to the pipeline of different bore sizes. The variable-section driving piece is in a structure that the motor is matched with the screw rod, when the screw rod rotates upwards in a spiral mode, the two ends of the rubber pipe are driven to move towards the middle of the rubber pipe, the outer peripheral side of the rubber pipe is enabled to bulge outwards, and therefore the variable-section driving piece is tightly abutted to the inner wall of the pipeline of the inclinometer pipe; and when the screw rod rotates spirally downwards, the two ends of the rubber tube are driven to stretch reversely, so that the outer diameter of the rubber tube is reduced, and the rubber tube is convenient to move in the pipeline of the inclinometer tube.
3. The fixing frame is arranged to avoid torsion of the screw rod body, so that the stability of screw rod movement is improved, and linear movement of the screw rod is guaranteed.
4. The cooperation electronic walking subassembly can provide the helping hand for the removal of tamping vibration mechanism, and it can correspond the pipeline of different pipe diameters, adjusts the angle of link for inside electronic steamboat contact pipeline, better suitability has. After the electric walking assembly is arranged on the tamping vibration mechanism, the vibrator is not limited to work in a vertically arranged pipeline, and can also work in a horizontally arranged pipeline.
5. When the displacement sensor senses that the tamping is not in place, measuring large displacement and continuing to vibrate; when the displacement is small, the tamping is in place, and the lifting can be upwards carried out until the next tamping point is reached, and the tamping is continued; the whole can cooperate displacement sensor to obtain the descending position of the tamping vibration mechanism, which is beneficial to tamping work and improves tamping quality.
6. The installation and construction method of the inclinometer pipe is simple in construction, the filling soil around the inclinometer pipe is tamped from the interior of the inclinometer pipe, each site is gradually monitored by matching with the tamping vibration mechanism, the filling soil around the inclinometer pipe is fully tamped, and the construction quality is improved.
Drawings
FIG. 1 is a schematic structural view of the compaction and vibration device of the present invention;
FIG. 2 is a schematic view of the internal structure of the tamping vibration mechanism of the present invention;
FIG. 3 is a cross-sectional view of the tamping vibration mechanism of the present invention;
fig. 4 is a structural schematic diagram of the deformation of the rubber sleeve of the present invention.
Reference numerals: 1. a lowering assembly; 11. an electric capstan; 12. a supporting tripod; 13. connecting ropes; 14. hooking; 2. a tamping vibration mechanism; 21. a pro-vector; 22. a rear carrier; 23. a vibrator; 24. a hook portion; 25. installing a channel; 26. a rotating shaft; 3. a pitch change assembly; 31. a rubber tube; 32. a hollow shaft motor; 33. a screw; 34. a fixed mount; 4. an electric walking assembly; 41. a connecting frame; 42. an electric small wheel; 43. a travel drive; 44. a locking ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A typical embodiment of this application provides a be used for deviational survey pipe around filling up ramming compaction device, including guiding mechanism and ramming vibration mechanism 2, ramming vibration mechanism 2 connects in guiding mechanism, and inside putting into the pipeline of deviational survey pipe ramming vibration mechanism 2 through guiding mechanism for drive ramming vibration mechanism 2 moves about from top to bottom along the deviational survey pipe pipeline.
As shown in fig. 1, specifically, the guiding mechanism includes a descending assembly 1, the descending assembly 1 includes an electric winch 11 with a controller and a power supply, and a supporting tripod 12 for mounting the electric winch 11, the supporting tripod 12 is used for erecting a pipe orifice at the upper end of an inclinometer pipe, the electric winch 11 is connected with the tamping vibration mechanism 2 through a connecting rope 13, and the connecting rope 13 adopts a steel cable with two-in-one wire and a signal wire.
The tamping vibration mechanism 2 comprises a front carrier 21 for extending into the interior of the pipeline, a rear carrier 22, a vibrator 23 and a pitch assembly 3. The front carrier 21 and the rear carrier 22 are both of a cylindrical structure, the top of the front carrier 21 is provided with a hook part 24, the end part of the connecting rope 13 is provided with a hook 14, and the tamping vibration mechanism 2 is connected to the electric capstan 11 through the connection of the hook 14 and the hook part 24; the vibrators 23 are arranged in two groups, specifically, brushless eccentric wheel motors are adopted, the vibrators 23 are mounted at the lower end of the front carrier 21 and the upper end of the rear carrier 22, the knuckle assembly 3 is arranged between the front carrier 21 and the rear carrier 22, the knuckle assembly 3 is connected with the vibrators 23, and the lower end of the rear carrier 22 is conical.
A displacement sensor is arranged on the rear carrier 22, and the position of the tamping vibration mechanism 2 descending in the inclinometer pipe is obtained through the displacement sensor. Still be equipped with ultrasonic detection device on the tamping vibration mechanism, ultrasonic detection device disposes transceiver, and ultrasonic detection device locates the tip of vibrator 23 for detect the peripheral closely knit condition of deviational survey pipe body and be used for judging the filling condition. In order to improve the detection accuracy, both sets of vibrators 23 are provided with ultrasonic detection means. The working principle of the ultrasonic detection device is that reflected sound waves are received, the back-and-forth time is calculated, different reflectivities of gaps and soil bodies are used for calculation, and a cloud picture of the sizes of the gaps is generated and used for judging the filling condition of filled soil. Ultrasonic detection devices are all prior art. In addition, the tamping vibration mechanism and the guide mechanism are regulated and controlled through a controller, and the control method and the structure of the controller are the prior art.
When the filling of the filling soil around the inclinometer is not in place through the detection of an ultrasonic detection device, the vibration is continued; when the filling of the surrounding filling soil is detected to be in place, the filling soil is tamped to be in place and can be lifted upwards to another tamping point for continuous detection and tamping. The vibrator 23 on preceding carrier and the back carrier can carry out independent control, and dispose the adjusting module who adjusts shock intensity on the vibrator 23, can adjust vibration intensity to the deviational survey pipe of different materials, improves vibration intensity under the prerequisite of guaranteeing not harm the deviational survey pipe to improve the compaction and tamping efficiency that shakes.
As shown in fig. 1-3, the variable joint assembly 3 includes a variable joint driving member and a deformable rubber tube 31, the rubber tube 31 is sleeved between the front carrier 21 and the rear carrier 22, and the rubber tube 31 has a hollow structure and a certain thickness and elasticity. Two ends of the rubber tube 31 are respectively sleeved outside the two vibrators 23. The variable driving part is fixed between the front carrier 21 and the rear carrier 22 and arranged in the rubber tube 31. The variable-section driving part is used for driving the rear carrier 22 to move close to the front carrier 21 or move away from the front carrier 21, and the rubber tube 31 is stretched or extruded along with the rear carrier 22 so as to change the thickness of the rubber tube, so that the vibrator 23 is ensured to be fully contacted with the inner wall of the pipeline of the inclinometer tube, the variable-section driving device is suitable for pipelines with different calibers, and tamping operation is realized.
The variable-pitch driving part comprises a hollow shaft motor 32, a screw 33 and a fixed frame 34, the upper end of the fixed frame 34 is fixed on the vibrator 23 connected with the front carrier 21, and the top and the bottom of the fixed frame 34 are provided with insertion holes along the central line thereof for two ends of the screw 33 to pass through. The hollow shaft motor 32 is arranged in the middle of the fixing frame 34, and the rod of the screw 33 is connected with the output end of the hollow shaft motor 32. The lower end of the screw 33 passes through the insertion hole at the bottom of the fixing frame 34 and then is fixed on the vibrator 23 connected with the rear carrier 22. The upper end of the screw 33 moves up and down in the fixed frame 34 under the driving of the hollow shaft motor 32, thereby driving the rear carrier 22 to move up or down. When the screw 33 moves upward to a maximum movement distance, the upper end of the screw 33 can be inserted into the insertion hole at the top of the fixing frame 34. The stability of the pitch drive can be maintained by the mount 34 to maintain the linear motion of the screw 33.
In use, as shown in figure 4, the tamping vibration mechanism 2 is lowered by adjusting the electric winch 11, and the variable joint component 3 is adjusted according to the inner diameter of the pipe of the inclinometer pipe, so that the tamping vibration mechanism 2 can enter the pipe and move in the pipe. Through the detection of the displacement sensor, after the tamping vibration mechanism 2 reaches the preset position, the screw 33 is driven to move by the hollow shaft motor 32, the screw 33 is shortened, the front carrier 21 and the rear carrier 22 are close to each other, the two ends of the rubber tube 31 move towards the middle part of the rubber tube, the outer peripheral side of the rubber tube 31 is bulged and is fully contacted with and filled in the pipeline, the inner wall of the pipeline is abutted to realize positioning, then the vibrator 23 is started, the vibrator 23 acts on the pipeline through the rubber sleeve, and fine sand filled outside the pipeline is tamped. After the tamping operation is finished, the hollow shaft motor 32 drives the screw rod 33 to move, so that the screw rod 33 moves downwards, the rubber pipe 31 is stretched accordingly, the diameter of the outer pipe of the rubber pipe 31 is reduced, the outer pipe leaves the inner wall of the pipeline, and the descending assembly 1 is matched with the tamping vibration mechanism 2 to move to the next position along the pipeline to perform the tamping operation. In order to facilitate the movement of the tamping vibration mechanism in the pipeline, the front carrier 21 and the rear carrier 22 are provided with guide wheels, specifically, the middle of the front carrier 21 is provided with an installation channel 25, openings at two ends of the installation channel 25 are respectively positioned on two side walls of the front carrier 21, a rotating shaft 26 is arranged in the installation channel 25, the guide wheels are connected to the rotating shaft 26, the guide wheels can rotate by taking the rotating shaft as a shaft, two ends of the rotating shaft 26 are fixed at two sides of the installation channel 25, and the length direction of the rotating shaft 26 is perpendicular to the length direction of the installation channel 25.
In a preferred embodiment, as shown in fig. 2 and 3, the guiding mechanism comprises an electric walking assembly 4, and the electric walking assembly 4 provides assistance for the movement of the tamping vibration mechanism 2 in the pipeline. Electric traveling units 4 are respectively attached to front carrier 21 and rear carrier 22. Specifically, the middle of the front carrier 21 is provided with an installation channel 25, openings at two ends of the installation channel 25 are respectively located on two side walls of the front carrier 21, a rotating shaft 26 is arranged in the installation channel 25, and the length direction of the rotating shaft 26 is perpendicular to the length direction of the installation channel 25.
The electric walking assembly 4 comprises a connecting frame 41, a walking driving member 43 and a pair of electric small wheels 42, the middle part of the connecting frame 41 is sleeved on the rotating shaft 26, the middle part of the connecting frame 41 is rotatably connected on the rotating shaft 26, a locking ring 44 is arranged on the outer side of the front carrier 21 corresponding to the middle part of the rotating shaft 26, and the locking ring 44 penetrates through the front carrier 21 and can be abutted against the connecting frame 41. The pair of electric small wheels 42 are respectively connected to two ends of the connecting frame 41, the electric small wheels 42 rotate relative to the connecting frame 41, the walking driving part 43 is installed between the connecting frames 41 and located on the side of the electric small wheels 42, the output end of the walking driving part 43 is connected to the central shaft of the electric small wheels 42 through belt transmission to drive the electric small wheels 42 to rotate, and the walking driving part 43 can adopt a micro motor. The structure of electric traveling unit 4 mounted on rear carrier 22 is the same as that mounted on front carrier 21, and therefore, the description thereof is omitted.
When the device is used, the angle of the connecting frame 41 is adjusted, when the pair of electric small wheels 42 can respectively contact the inner wall of the pipeline, the locking ring 44 is screwed to tightly press the connecting frame 41, and the purpose of fixing the connecting frame 41 is achieved. After the electric walking assembly 4 is arranged on the tamping vibration mechanism 1, the vibration and compaction device is not limited to work in a vertically arranged pipeline, and can also work in a horizontally arranged pipeline.
Under the condition of operation in the vertical direction, the power for moving the tamping vibration mechanism in the pipeline is provided by the electric winch, and the tamping vibration mechanism is matched with the guide wheel to facilitate the integral movement. In the case of horizontal operation, the power for moving the tamping vibration mechanism in the pipeline is provided by the electric small wheel.
On the whole, the inside survey pipe pipeline can be put into to the vibration mechanism of tamping of this embodiment, carries out the operation of tamping from the pipeline is inside. Through the inside length direction removal of guiding mechanism drive tamping vibration mechanism along the deviational survey pipe, combine the festival subassembly to make tamping vibration mechanism be located a certain position of pipeline and carry out the operation of vibrating, can tamp each position around the deviational survey pipe in proper order for the stopping is filled and is targetting in place, avoids appearing the hollow condition, has improved the structural strength that the stopping was filled on the whole, has improved measurement accuracy.
The application also provides a construction method for installing and filling the inclinometer pipe, which is assisted by the tamping and compacting device in the first embodiment and comprises the steps of construction preparation, drilling hole cleaning, aperture and hole depth inspection, installation of the inclinometer pipe, filling of the inclinometer pipe and maintenance of a pipe orifice of the inclinometer pipe.
The method comprises the following specific steps:
s1, preparation for construction
After earth excavation near the measuring point position is finished, repairing the slope according to the designed slope rate, preventing subsequent mechanical construction from damaging the inclinometer pipe, and leveling and tamping a slope platform;
s2, drilling and cleaning of drilling
The drill hole is drilled by a pneumatic dry method to form a hole, so that the damage to the engineering geological condition of the slope rock mass is avoided; the drilling speed is strictly controlled according to the performance of the drilling machine and the stratum conditions, so that the drilling hole is prevented from being distorted and changed in diameter;
drilling at the measuring point, stabilizing the drill bit for 1-2 minutes after the drilling reaches the designed depth, cleaning sediments and water body viscosity in the wall of the drilled hole after the drilling is finished, removing rock powder and water body in the drilled hole out of the hole by using air with the air pressure of 0.2-0.4 MPa, and stopping cleaning the hole after 2-3 minutes after no dust is blown out;
s3 pore diameter and pore depth inspection
The hole depth is determined according to a design drawing and a construction scheme, the hole depth is not less than the bending depth of the potential sliding surface, and the perpendicularity of the drilled hole is detected, and the method comprises the following steps:
s31, after the formed hole reaches the design standard height, checking the hole depth, the hole diameter, the hole wall verticality, the deposition thickness and the like, and preparing a detection tool, a measuring rope, a detection controller and the like before detection;
s32, preparing detection tools, measuring ropes, hole detection tools and the like before checking the thickness of the sediment;
s33, the hole detector is manufactured according to the following requirements: the outer diameter D of the hole detector is the diameter of the inclinometer pipe plus 2cm (not larger than the diameter of the drill bit), and the length is 6D;
s34, calibrating a measuring rope, wherein the measuring rope adopts a steel wire measuring rope, the weight of the weight measuring hammer is 2KG within 20 m, and the weight of the weight measuring hammer is 3KG above 20 m. Measuring the elevation of the orifice, measuring the depth of the orifice by using a measuring rope and recording,
s35, detecting sediments, putting down the detector, and recording the length of the measuring rope; after the hole detection steel bar is put down by a steel wire measuring rope, the length of the hole detection steel bar and the measuring rope is recorded, and the difference between the two lengths is the thickness of the sediment;
s36, detection standard: the hole depth and the hole diameter are not less than the design specification, the inclination error of the drilled hole is not more than 1 percent, and the thickness of the sediment is not more than 50 mm;
s4, mounting of inclinometer pipe
Before the inclinometer is installed, the supporting tripod 12 is installed outside the corresponding drill hole, the bottom of the inclinometer is sleeved with a cover before the inclinometer is installed, the guide grooves at each joint of the inclinometer are aligned with each other and screwed down by using screws, glue is coated on the pipe wall at each joint, and the joint at the outer side of the corresponding pipe wall is wrapped by using an adhesive tape, so that sand can be prevented from entering the guide pipe; when the inclinometer pipe is buried in the drill hole, the orientation of the guide groove in the corresponding inclinometer pipe is strictly controlled, the direction of the guide groove in the inclinometer pipe is kept consistent with the direction of the potential landslide of the side slope, and the pipe orifice at the upper end of the inclinometer pipe is 30-50cm higher than the ground.
S5 filling inclinometer pipe
The method comprises the following steps:
s51, selecting one or more of sandy soil, fine sand and bentonite balls as filler of the inclinometer pipe, wherein the particle size of the filler is less than 1/3-1/4 of the size of a gap between the outer wall of the inclinometer pipe and a drill hole;
s52, adopting a small quantity of multiple packing principles, and uniformly blanking the packing clockwise along the edge of the inclinometer pipe;
s53, mounting the tamping vibration mechanism 2 on the supporting tripod 12, placing the tamping vibration mechanism 2 into the inclinometer pipe downwards through the guide mechanism in the blanking process, and starting the ultrasonic detection device to detect the filling condition of the filler around the inclinometer pipe in the sequence from top to bottom; detecting whether the filler is blocked or not, when detecting that a gap exists, positioning the tamping vibration mechanism at the position where the gap exists, starting the tamping vibration mechanism to dredge, and marking the position, so that the important attention is paid to during subsequent construction;
s54, when the tamping vibration mechanism 2 is lowered to the bottom of the inclinometer pipe and the filler is filled to 1.5-1.8 times of the length of the tamping vibration mechanism 2, starting the tamping vibration mechanism 2 to vibrate;
s55, sequentially starting the vibrators 23 on the rear carrier 22 and the front carrier 21 in sequence, controlling the strength of the vibrator 23, starting the strength of a first gear for vibration, monitoring by using a displacement sensor, increasing the gears of the vibrator 23 for vibration when the displacement is not changed, and operating in the mode until the vibrator 23 reaches the maximum gear, the monitoring data of the displacement sensor is not changed and no gap exists in the detection of the ultrasonic detection device, and moving the tamping vibration mechanism for vibration operation of the next position;
s56, repeating the steps, and blanking the gap between the drill hole and the inclinometer pipe synchronously in the vibrating process;
and S57, when the ultrasonic detection device at the top detects that the filler falls slowly or does not discharge, stopping vibrating, slowly lifting the tamping vibration mechanism 2, searching for a blocking position, and repeating construction until the position of the pipe orifice of the inclinometer pipe is reached, namely finishing vibrating operation.
S6 maintenance of pipe orifice of inclinometer pipe
And after the vibration operation is finished and the filler is solidified and has no settlement change, excavating a foundation pit with the depth of not less than 20cm and the length and width of not less than 30cm and 30cm near the pipe opening of the inclinometer pipe, installing a template, and setting a side slope with the top surface of the concrete 20cm higher than the ground and not less than 3 percent. Draining water from the middle of the excavated part to the periphery to prevent rainwater from flowing backwards; the protection box is installed, when the protection box is not used, the cover of the protection box is closed, and the damage caused by collision and sundries entering the pipe can be prevented.
On the whole, the installation and construction method of the inclinometer pipe is simple in construction, the filling soil around the inclinometer pipe is tamped from the interior of the inclinometer pipe, each site is gradually monitored by matching with the tamping vibration mechanism 2, the filling soil around the inclinometer pipe is fully tamped, the construction quality is improved, and the problems of pipeline deviation and foundation settlement in the operation and maintenance stage in the construction process due to the fact that the backfill compactness of the pipeline does not reach the standard are solved.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a be used for deviational survey pipe to fill out soil around ramming and vibrate densely device which characterized in that: the device comprises a guide mechanism and a tamping vibration mechanism, wherein the guide mechanism is connected with the tamping vibration mechanism and used for driving the tamping vibration mechanism to move in an inclinometer pipe;
the tamping vibration mechanism comprises a front carrier, a rear carrier, vibrators and a joint change assembly, wherein one vibrator is arranged at the end part of the front carrier and the end part of the rear carrier, and the joint change assembly is arranged between the two vibrators and is used for positioning the tamping vibration mechanism in a pipeline of the inclinometer pipe.
2. The device for the earth filling and tamping compaction around the inclinometer pipe as claimed in claim 1, wherein: the knuckle assembly comprises a knuckle driving part and a deformable rubber pipe, the knuckle driving part is fixed between the vibrators, the rubber pipe is sleeved on the knuckle driving part, two ends of the rubber pipe are respectively sleeved with the vibrators, and the rubber pipe can be stressed, stretched or extruded under the driving of the knuckle driving part.
3. The device for filling and tamping compaction around an inclinometer pipe as claimed in claim 2, wherein: the variable-pitch driving piece comprises a hollow shaft motor, a screw rod and a fixing frame, the upper end of the fixing frame is fixed on the vibrator connected with the front carrier, the hollow shaft motor is arranged in the fixing frame, the rod body of the screw rod is connected with the output end of the hollow shaft motor, the lower end of the screw rod penetrates through the fixing frame and then is fixed on the vibrator connected with the rear carrier, and the upper end of the screw rod moves up and down in the fixing frame under the driving of the hollow shaft motor.
4. The apparatus of claim 3, wherein the apparatus comprises: the vibrator is a brushless eccentric wheel motor, and an adjusting module for adjusting the vibration intensity is configured on the vibrator.
5. The device for the earth filling and tamping compaction around the inclinometer pipe as claimed in claim 1, wherein: the guide mechanism comprises an electric walking assembly, and the electric walking assembly is arranged on each of the front carrier and the rear carrier;
the electric walking assembly comprises a connecting frame, a walking driving part and a pair of electric small wheels, wherein the connecting frame is arranged at the middle part of the front carrier and the middle part of the rear carrier, the electric small wheels are connected to the two ends of the connecting frame respectively, and the output end of the walking driving part is connected to the center of the electric small wheels and used for driving the electric small wheels to rotate.
6. The device for the earth filling and tamping compaction around the inclinometer pipe as claimed in claim 1, wherein: the guiding mechanism comprises a descending assembly, the descending assembly comprises an electric winch with a controller and a power supply and a supporting tripod used for installing the electric winch, the supporting tripod is erected on an upper end pipe orifice of the inclinometer pipe, and the electric winch is connected with the tamping vibration mechanism through a connecting rope.
7. The apparatus of claim 6, wherein the apparatus comprises: the front carrier and the rear carrier are both provided with guide wheels.
8. The apparatus according to claim 5 or 6, wherein: and a displacement sensor is arranged on the tamping vibration mechanism.
9. The apparatus of claim 8, wherein the apparatus is used for the soil-filling and tamping compaction around the inclinometer pipe: the tamping vibration mechanism is further provided with an ultrasonic detection device, the ultrasonic detection device is provided with a receiving and sending device, and the ultrasonic detection device is arranged at the end part of the vibrator and used for detecting the filling condition of the filler on the periphery of the pipe body of the inclinometer.
10. A construction method for installing and filling a deviational survey pipe, which is characterized in that the filling is assisted by the tamping and compacting device of claim 9, and comprises the following steps:
s1, preparation for construction
After earth excavation near the measurement point position is finished, repairing a slope according to the designed slope rate, and leveling and tamping a slope platform;
s2, drilling and cleaning of drilling
Drilling at a measuring site, continuing to stabilize the drill bit for 1-2 minutes after the drill hole reaches the designed depth, cleaning sediments and water body viscosity in the wall of the drill hole after the drilling is finished, using air with the air pressure of 0.2-0.4 MPa to completely remove rock powder and water body in the drill hole out of the hole, and stopping cleaning the hole after no dust is blown out for 2-3 minutes;
s3 pore diameter and pore depth inspection
Determining the hole depth according to a design drawing and a construction scheme, wherein the hole depth is not less than the depth of the potential sliding surface;
s4, mounting of inclinometer pipe
Sleeving a cover on the bottom of the inclinometer before mounting, aligning guide grooves at joints of the inclinometer with each other, screwing down the guide grooves by using screws, coating glue on the pipe wall of each joint of the inclinometer, and wrapping by using an adhesive tape; when the inclinometer pipe is buried in the drill hole, the direction of the guide groove in the inclinometer pipe is consistent with the potential landslide direction of the side slope, and the pipe orifice at the upper end of the inclinometer pipe is 30-50cm higher than the ground;
s5 filling inclinometer pipe
S51, selecting one or more of sandy soil, fine sand and bentonite balls as filler of the inclinometer pipe, wherein the particle size of the filler is less than 1/3-1/4 of the size of a gap between the outer wall of the inclinometer pipe and a drill hole;
s52, adopting a small quantity of multiple packing principles, and uniformly blanking the packing clockwise along the length direction of the inclinometer pipe;
s53, in the discharging process, the tamping vibration mechanism is placed downwards into the inclinometer pipe through the guide mechanism, and the ultrasonic detection device is started to detect the filling condition of the filler around the inclinometer pipe in the sequence from top to bottom; when the existence of the gap is detected, the tamping vibration mechanism is positioned at the position with the gap, the tamping vibration mechanism is started to dredge, and the position is marked;
s54, when the tamping vibration mechanism is placed at the bottom of the inclinometer pipe and the filler is filled to 1.5-1.8 times of the length of the tamping vibration mechanism, starting the tamping vibration mechanism to vibrate;
s55, sequentially starting the vibrators on the rear carrier and the front carrier in sequence, starting vibrating with a first-gear strength, monitoring by using the displacement sensor in the vibrating process, increasing the gears of the vibrators for vibrating when the displacement does not change any more until the vibrators reach the maximum gear, the displacement sensor monitors that the displacement data does not change any more and the ultrasonic wave detects that no gap exists, and moving the tamping vibration mechanism to vibrate the next position;
s56, repeating the steps, and blanking the gap between the drill hole and the inclinometer pipe synchronously in the vibrating process;
s57, when the ultrasonic detection device at the top detects that the filler falls slowly or is not discharged, stopping vibrating, slowly lifting the tamping vibration mechanism, searching for a blocking position, and repeating construction until the pipe orifice position of the inclinometer pipe is reached, so that vibrating operation can be completed;
s6 maintenance of pipe orifice of inclinometer pipe
And after the vibration operation is finished and the filler is solidified and has no settlement change, excavating a foundation pit with the depth of not less than 20cm and the length and width of not less than 30cm and 30cm near the pipe opening of the inclinometer pipe, installing a template, and setting a side slope with the top surface of the concrete 20cm higher than the ground and not less than 3 percent.
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