CN117661646A - High-precision measuring device flexibly applied to pipe pile soil compaction effect and construction method thereof - Google Patents
High-precision measuring device flexibly applied to pipe pile soil compaction effect and construction method thereof Download PDFInfo
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- CN117661646A CN117661646A CN202311472392.7A CN202311472392A CN117661646A CN 117661646 A CN117661646 A CN 117661646A CN 202311472392 A CN202311472392 A CN 202311472392A CN 117661646 A CN117661646 A CN 117661646A
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- 239000002689 soil Substances 0.000 title claims abstract description 57
- 230000000694 effects Effects 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 238000005056 compaction Methods 0.000 title claims description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 59
- 239000010410 layer Substances 0.000 claims description 42
- 238000005553 drilling Methods 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 27
- 230000000149 penetrating effect Effects 0.000 claims description 21
- 239000011247 coating layer Substances 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 239000011253 protective coating Substances 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000002360 explosive Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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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
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a high-precision measuring device flexibly applied to a pipe pile soil squeezing effect and a construction method thereof. The invention has ingenious design, can greatly improve the monitoring efficiency of the soil squeezing effect of the pipe pile, ensures accurate and reliable detected data, and has good economic benefit.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering construction, in particular to a high-precision measuring device flexibly applied to a pipe pile soil squeezing effect and a construction method thereof.
Background
In geotechnical engineering, the pipe pile is widely applied, and the pile body penetrates into the soil layer and is in direct contact with the soil body, so that the construction of the pipe pile is often accompanied with the occurrence of soil squeezing effect, namely the soil layer near the pipe pile is squeezed, and the soil layer can deviate to different degrees in all directions of space. Structures near the pipe piles and the structures can be adversely affected under the soil compaction effect, and even deflection occurs when the structures are severe. The displacement monitoring of the deep soil body is a key part of the soil squeezing effect monitoring and is also a difficulty faced in engineering. At present, an inclinometer pipe is often adopted for monitoring deep soil displacement in engineering, but the inclinometer pipe can only monitor soil horizontal displacement along a certain radial direction of the pipe pile, and cannot completely monitor soil displacement along the circumferential direction of the pipe pile. Because the elasticity of the inclinometer pipe is poor, the measurement accuracy of the soil body displacement field is poor. For the stress field in the soil body, the current monitoring scheme is to embed a soil pressure box at a fixed point, and the method can only monitor the stress of a certain point in the soil body and can not fully reflect the stress field of the soil layer.
Chinese patent document CN 106638725A describes a device and method for testing soil compaction effect of a pipe pile, the device is only an experimental model, and cannot be used on site; chinese patent document CN 213014254U describes a static pressure pipe pile with soil squeezing effect monitoring function, but the device cannot be flexibly converted, and the positions and states of sensors with different depths cannot be simultaneously adjusted according to the needs, so that the use has defects and needs to be improved.
Disclosure of Invention
The invention provides a high-precision measuring device flexibly applied to a pipe pile soil squeezing effect and a construction method thereof, which are used for solving the problem that the existing means cannot truly measure and study displacement fields and stress fields at different positions of a soil layer, and providing technical support for the research of the pipe pile soil squeezing effect in time.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a nimble high accuracy measuring device who is applied to tubular pile soil squeezing effect, including wearing to establish the support frame in the drilling, the outside detachable of support frame installs the protection coating, is equipped with a plurality of monitoring balls in the protection coating, and the outside of monitoring ball is provided with the soil pressure membrane, and the lateral wall of protection coating supports the inside wall that leans on the drilling, is equipped with omnidirectional displacement sensor in the monitoring ball, and the outside of drilling is equipped with wireless module and control terminal, wireless module and omnidirectional displacement sensor electrical connection.
In the preferred scheme, the support frame includes a plurality of mount units that set up along the axis, through screw connection between a plurality of mount units, mount the unit and include the collar, and the protection coating is fixed in the collar outside.
In the preferred scheme, the monitoring ball is also internally provided with a signal switching amplifier and a power supply unit, the signal switching amplifiers in different monitoring balls are electrically connected, and the signal switching amplifiers are electrically connected with the wireless module.
In the preferred scheme, the protection coating layer includes interconnect's a plurality of ring layers and vertical layer, and ring layer and vertical layer are equipped with the wall along the axial setting of mount unit on the ring layer, and vertical layer setting is in cutting off one side, and ring layer laminating is in the collar outside.
In the preferred scheme, a first sleeve is arranged in the middle of a mounting ring, the first sleeve is connected with the mounting ring through a plurality of fixed rib plates, a sliding rod is arranged on the mounting ring and the first sleeve in a penetrating mode, a contact block is arranged at the end part of the sliding rod, a driving rod is connected with the upper part of the first sleeve in a threaded mode, a conical head is arranged at the lower part of the driving rod, and the contact block is attached to the conical head;
the installation ring and the first sleeve are penetrated and provided with square grooves, the sliding rod is penetrated in the square grooves, one end of the contact block is provided with a contact inclined plane matched with the slope of the conical head, the driving rod is connected with the first sleeve through the cover plate, the sliding rod is sleeved with a spring, and the spring is positioned between the first sleeve and the contact block.
In the preferred scheme, the diameters of the inner side of a cover plate and the outer side of a first sleeve are matched, a threaded sleeve is arranged in the middle of the cover plate, a conical head is arranged at the lower part of a driving rod, a first connecting rod is arranged at the lower part of the conical head, the driving rod is in threaded connection with the threaded sleeve, the first sleeve is in threaded connection with the cover plate, a third alignment groove is arranged on the outer side of the first sleeve, a second alignment groove and an arrow are arranged on the outer side of the cover plate, and a first alignment groove is arranged on the outer side of the driving rod;
the upper portion of the driving rod is provided with a first counter bore, a first through hole is formed in the first counter bore in a penetrating mode, a second through hole is formed in the first connecting rod in a penetrating mode, the first connecting rod is connected with the sealing sleeve through a screw, the screw penetrates through the second through hole, a sealing plug is further arranged, and the sealing plug is sleeved on the first connecting rod.
In the preferred scheme, a first restriction hole is formed in the middle of a cover plate, a second restriction hole is formed in the middle of a sealing sleeve, a driving rod is arranged in the first restriction hole in a penetrating mode, the outer portion of a sealing plug is attached to the inner side of the second restriction hole, a through groove is formed in the upper portion of the cover plate in a penetrating mode, a second threaded hole is formed in the first sleeve, and a screw is arranged in the second threaded hole and the through groove in a penetrating mode;
the sealing sleeve is provided with a first mounting hole in a penetrating mode, a first threaded hole is formed in one side, opposite to the first mounting hole, of the sealing sleeve, the outer side of the sealing sleeve is matched with the inner side of the first sleeve in diameter, and a second mounting hole matched with the first mounting hole is formed in the first sleeve.
In the preferred scheme, still be equipped with extension piece, extension piece both sides are equipped with second connecting rod and second counter bore respectively, and extension piece is equipped with a plurality of locking holes along circumference, and pin detachable inserts and establishes on extension piece and actuating lever, and extension piece is used for increasing the length of actuating lever, and first connecting rod and second connecting rod diameter are equal, and second counter bore and first counter bore diameter are equal.
In a preferred scheme, the construction method of the pipe pile soil compaction effect measuring device comprises the following steps:
s1, drilling holes in stratum by adopting a geological drilling machine near the pile position according to the pile position and the pile length of the pipe pile construction on the engineering site;
s2, setting a protection coating layer with a corresponding length according to the depth of the drilled hole, and then installing and fixing a monitoring ball according to the position of the support frame to form a combination body;
s3, placing the combined body into a drilling hole, and filling fine sand between the drilling hole and the combined body;
s4, testing and adjusting the state of each sensor on the combination body, and recording the data at the moment as an initial value;
s5, observing the state of the protection coating layer in real time in the pipe pile construction process, and generating a data cloud picture of the protection coating layer.
In the preferred scheme, when installing the monitoring ball in S2, keep the top of protection coating leak ground at least 10cm outward, in S3, after the assembly is put down in the drilling, through the state of adjusting the support frame at top, guarantee that the assembly is placed in the middle, all monitoring balls all laminate at the inside wall of drilling this moment, then the pre-compaction detects the operating condition of each sensor this moment, carries out the packing of fine sand after checking, then carries out the tubular pile construction.
The beneficial effects of the invention are as follows: through setting up protection coating, monitoring ball and earth pressure membrane can guarantee omnidirectional displacement sensor job stabilization, measurement accuracy is high, fix the monitoring ball on the support frame through the protection coating, guaranteed the accuracy of mounted position, can reasonable the detection point of setting different degree of depth in the drilling, and the integral erection is convenient, and is effectual, adopt the actuating lever can adjust the position and the state of different monitoring balls, and then improve the sensitivity of monitoring, the signal switching amplifier of setting in the monitoring ball, with different monitoring balls electrical connection, backup each other between a plurality of monitoring balls, and each other be the relay, guaranteed that the signal can be better penetrate soil layer and fine sand, finally pass into on the control terminal. The invention has the advantages of ingenious design, convenient operation and good economic benefit.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of the installation of the present invention in a subterranean formation;
FIG. 2 is a schematic view of the interior of a test ball according to the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a schematic view of the explosive structure of FIG. 3 in state one;
FIG. 5 is a schematic view of the explosive structure of FIG. 3 in a second state;
FIG. 6 is a schematic top view of FIG. 3;
FIG. 7 is a schematic diagram of the connection of two adjacent mounting units of FIG. 3;
FIG. 8 is a schematic view of the explosive structure of FIG. 7 in state one;
FIG. 9 is a schematic view of the explosive structure of FIG. 7 in a second state;
FIG. 10 is a schematic view of the internal structure of the mounting unit of FIG. 3 in a first state;
FIG. 11 is a schematic view of an internal structure of the mounting unit of FIG. 3 in a second state;
FIG. 12 is a schematic view of an internal structure of the mounting unit of FIG. 3 in a third state;
fig. 13 is a schematic view of the drive rod connection extension member of fig. 10.
In the figure: a formation 1; drilling 2; a protective coating layer 3; a circular ring layer 301; a vertical layer 302; a cavity 303; a monitor ball 4; fine sand 5; a soil pressure membrane 6; an omnidirectional displacement sensor 7; a wireless module 8; a control terminal 9; a support frame 10; a mounting unit 11; a mounting ring 1101; a first sleeve 1102; a fixing rib 1103; a slide bar 1104; a driving lever 1105; sealing sleeve 1106; a cover plate 1107; a first alignment slot 1108; a second alignment groove 1109; arrow 1110; a third alignment groove 1111; conical head 1112; a first connecting rod 1113; a first mounting hole 1114; a first threaded bore 1115; a contact block 1116; a first counterbore 1117; a first through hole 1118; a second through hole 1119; a second mounting hole 1120; square slots 1121; threaded sleeve 1122; a second threaded hole 1123; a through slot 1124; a first constraining hole 1125; a second constraining hole 1126; contact ramp 1127; a sealing plug 12; a screw 13; a spring 14; extension 15; a second connecting rod 1501; a locking hole 1502; second counterbore 1503; a pin 16; a signal switching amplifier 17; a partition 18.
Detailed Description
As shown in fig. 1-6, a high-precision measuring device flexibly applied to the soil squeezing effect of a pipe pile comprises a supporting frame 10 penetrating through a drill hole 2, a protective coating layer 3 is detachably arranged outside the supporting frame 10, a plurality of monitoring balls 4 are arranged in the protective coating layer 3, soil pressure films 6 are arranged outside the monitoring balls 4, the outer side walls of the protective coating layer 3 are abutted against the inner side walls of the drill hole 2, an omnidirectional displacement sensor 7 is arranged in the monitoring balls 4, a wireless module 8 and a control terminal 9 are arranged outside the drill hole 2, and the wireless module 8 is electrically connected with the omnidirectional displacement sensor 7. The protection coating layer 3 is made of flexible materials with elasticity, the cavity 303 for accommodating the monitoring ball 4 is arranged in the protection coating layer 3, the monitoring ball 4 can have a certain movable space (parallel to the axial direction of the drilling hole 2) in the vertical direction in the cavity 303, namely, the diameter of the monitoring ball 4 is larger than the opening width of the cavity 303, the diameter of the monitoring ball 4 is smaller than the opening height of the cavity 303, the soil pressure film 6 is exposed out of the opening of the cavity 303, the soil pressure film 6 is kept attached to the inner side wall of the drilling hole 2, so that the displacement change of the soil body at different positions of the side wall of the drilling hole 2 can be obtained, meanwhile, the force of the soil body is collected and finally transmitted to the control terminal 9, the wireless module 9 adopts a transmission mode at least comprising Bluetooth, wiFi, zigBee and 5G, stability and high efficiency of data acquisition are guaranteed, when the soil body change is displaced, the soil body is firstly contacted with the soil pressure film, the pressure applied to the monitoring ball 4 at the moment, then the omni-directional displacement sensor 7 obtains the displacement variable of the soil body, the protection coating layer 3 after being conveniently assembled through the support frame 10 is simple in whole operation, and convenient adjustment.
In a preferred embodiment, the support frame 10 includes a plurality of mounting units 11 disposed along an axis, the plurality of mounting units 11 are connected by screws 13, the mounting units 11 include a mounting ring 1101, and the protective coating 3 is fixed on the outer side of the mounting ring 1101. The mounting ring 1101 is used as a support for the monitoring ball 4, so that the displacement trend and the displacement amount of the soil body in the bottom layer 1 to the drill hole 2 under the soil squeezing effect can be stably acquired.
In the preferred scheme, the monitoring ball 4 is also internally provided with a signal switching amplifier 17 and a power supply unit, the signal switching amplifiers 17 in different monitoring balls 4 are electrically connected, and the signal switching amplifiers 17 are electrically connected with the wireless module 8. Due to the fact that the capacity of the signal passing through the soil layer is suddenly reduced along with the increase of the depth of the drilling hole 2, when data are transmitted among the plurality of monitoring balls 4 arranged on the same layer on the supporting frame 10, the signal switching amplifier 17 is mutually matched to form a step-type upward jump relay to respective data combination, transmission is completed among different layers, finally a controller is arranged on the uppermost monitoring ball 4 layer, acquired data are respectively transmitted to the wireless module 8, the data transmission is sequentially completed from top to bottom in a specific transmission process, a data temporary storage is arranged in each monitoring ball 4, after the data of the layer are transmitted to the wireless module 8, each layer of data temporary storage is cleared at least one and then used for receiving the data from the next layer, the accuracy and stability of data reception are guaranteed (relative to the depth direction of the drilling hole 2), meanwhile, abnormal data are mutually backed up and checked, error data positions (corresponding to the positions of the monitoring balls 4) are timely removed, and the problem that the error data enter the control terminal 9 due to the sensor or damage is avoided.
In the preferred scheme, the protection coating layer 3 includes interconnect's a plurality of ring layer 301 and vertical layer 302, and ring layer 301 and vertical layer 302 are along the axial setting of carrying unit 11, are equipped with on the ring layer 301 and cut off 18, and vertical layer 302 sets up in cut off 18 one side, and ring layer 301 laminating is in the collar 1101 outside. By the structure, the protection coating layer 3 is a continuous and uninterrupted protection belt with good elasticity, the influence of the material on the monitoring data is avoided to the maximum extent, the accuracy of monitoring data acquisition is improved, the stability of the installation of the monitoring ball 4 is ensured, the accuracy of the detection data is ensured, and the problem of bending or interference during the installation can be avoided when the partition 18 is cut off.
7-12, in a preferred scheme, a first sleeve 1102 is arranged in the middle of a mounting ring 1101, the first sleeve 1102 is connected with the mounting ring 1101 through a plurality of fixing ribs 1103, a sliding rod 1104 is arranged on the mounting ring 1101 and the first sleeve 1102 in a penetrating way, a contact block 1116 is arranged at the end part of the sliding rod 1104, a driving rod 1105 is connected with the upper part of the first sleeve 1102 in a threaded way, a conical head 1112 is arranged at the lower part of the driving rod 1105, and the contact block 1116 is attached to the conical head 1112;
the mounting ring 1101 and the first sleeve 1102 are provided with square grooves 1121 in a penetrating manner, the sliding rod 1104 is arranged in the square grooves 1121 in a penetrating manner, one end of the contact block 1116 is provided with a contact inclined surface 1127 matched with the slope of the conical head 1112, the driving rod 1105 is connected with the first sleeve 1102 through the cover plate 1107, the sliding rod 1104 is provided with a spring 14 in a sleeved manner, and the spring 14 is positioned between the first sleeve 1102 and the contact block 1116. From this structure to make first sleeve 1102 regard as the installation basis of actuating lever 1105, can evenly disperse the whole atress of support frame 10, the installation position of the monitoring ball 4 of different positions in the circumferencial direction is accurate then can be guaranteed to collar 1101, detect in a plurality of directions, during the concrete construction, the monitoring ball 4 of same degree of depth is provided with 3 at least, keep 120 contained angles each other, thereby can very simplified completion data's mutual matching and verification, guarantee the accuracy of measurement, slide bar 1104 is used for adjusting the position of protection coating layer 3, monitoring ball 4 and die cavity 303 set up on corresponding slide bar 1104, wherein the medial surface of slide bar 1104 and protection coating layer 3 is fixed firm, guarantee that area of contact is abundant between slide bar 1104 and the protection coating layer 3, thereby can be better when the slide bar 1104 motion adjust the position of monitoring ball 4, the cross-section of slide bar 1104 and the size phase-match of square groove 1121, thereby avoid the slide bar reciprocating motion in-process emergence pivoted problem.
In the preferred scheme, the diameters of the inner side of a cover plate 1107 and the outer side of a first sleeve 1102 are matched, a thread sleeve 1122 is arranged in the middle of the cover plate 1107, a conical head 1112 is arranged on the lower part of a driving rod 1105, a first connecting rod 1113 is arranged on the lower part of the conical head 1112, the driving rod 1105 is in threaded connection with the thread sleeve 1122, the first sleeve 1102 is in threaded connection with the cover plate 1107, a third alignment groove 1111 is arranged on the outer side of the first sleeve 1102, a second alignment groove 1109 and an arrow 1110 are arranged on the outer side of the cover plate 1107, and a first alignment groove 1108 is arranged on the outer side of the driving rod 1105;
the upper portion of the driving rod 1105 is provided with a first counter bore 1117, a first through hole 1118 is formed in the first counter bore 1117 in a penetrating mode, a second through hole 1119 is formed in the first connecting rod 1113 in a penetrating mode, the first connecting rod 1113 is connected with the sealing sleeve 1106 through a screw 13, the screw 13 penetrates through the second through hole 1119, a sealing plug 12 is further arranged, and the sealing plug 12 is sleeved on the first connecting rod 1113. The first alignment groove 1108, the second alignment groove 1109 and the arrow 1110 are all the marks for ensuring the accurate installation position and the accurate installation angle, when the cover plate is installed, the arrow 1110 and the second alignment groove 1109 are opposite to the third alignment groove 1111, because the cover plate 1107 is connected with the first sleeve 1102 in a threaded connection mode, the arrow 110 is ensured to be opposite to the third alignment groove 1111 after being connected in place, at the moment, the cover plate 1107 is locked and fixed, then the driving rod 1105 is installed, when the bottommost end of the first alignment groove 1108 is close to the arrow 1110, the driving rod 1105 is installed in place at the moment, the positions and the angles of the driving rods 1105 between different mounting units 11 are the same relative to the first sleeve 1102, the follow-up extension and the assembly of the mounting unit 10 are convenient, the whole operation is convenient, the use effect is good, and the problem of loss of the installation precision after the mounting and dismounting maintenance is avoided.
In a preferred scheme, a first constraint hole 1125 is formed in the middle of a cover plate 1107, a second constraint hole 1126 is formed in the middle of a sealing sleeve 1106, a driving rod 1105 is arranged in the first constraint hole 1125 in a penetrating mode, the outside of a sealing plug 12 is attached to the inner side of the second constraint hole 1126, a through groove 1124 is formed in the upper portion of the cover plate 1107 in a penetrating mode, a second threaded hole 1123 is formed in the first sleeve 1102, and a screw 13 is arranged in the second threaded hole 1123 and the through groove 1124 in a penetrating mode;
the sealing sleeve 1106 is provided with a first mounting hole 1114 in a penetrating manner, one side of the sealing sleeve 1106 opposite to the first mounting hole 1114 is provided with a first threaded hole 1115, the outer side of the sealing sleeve 1106 is matched with the inner side of the first sleeve 1102 in diameter, and the first sleeve 1102 is provided with a second mounting hole 1120 matched with the first mounting hole 1114. 1114 are counter bores to better more carry out the adjustment of position to screw 13, so that the structure is with making the installation of actuating lever 1105 accurate high-efficient, and the mounting unit 10 after the installation is accomplished keeps a good leakproofness simultaneously, has avoided the material in the drilling 2 to enter into in the second sleeve 1102 from seal cover 1106 lower part, has guaranteed the smoothness of whole operation, and whole transmission moment of torsion is stable, and the actuating lever 1105 that is located the top is at the time of the rotation, and the different actuating levers 1105 of its lower part connection all rotate simultaneously, thereby the distance that the slide bar 1104 on the mounting unit 10 of assurance in the different positions in drilling 2 stretches out is the same.
As shown in FIG. 13, in a preferred embodiment, there is an extension member 15, two sides of the extension member 15 are respectively provided with a second connecting rod 1501 and a second counter bore 1503, the extension member 15 is provided with a plurality of locking holes 1502 along the circumferential direction, pins 16 are detachably inserted into the extension member 15 and the driving rod 1105, the extension member 15 is used for increasing the length of the driving rod 1105, the diameters of the first connecting rod 1113 and the second connecting rod 1501 are equal, and the diameters of the second counter bore 1503 and the first counter bore 1117 are equal. With this structure, in order to adapt to the measurement of the soil squeezing effect of different drilling holes 2, the extension piece 15 can prolong the length of the driving rod 1105, and simultaneously ensure stable transmission torque, good effect and flexible assembly and disassembly.
In a preferred scheme, the construction method of the pipe pile soil compaction effect measuring device comprises the following steps:
s1, constructing a drilling hole 2 in a stratum 1 by adopting a geological drilling machine nearby a pile position according to the pile position and the pile length of the pipe pile construction on an engineering site; setting a plurality of drilling holes 2 according to the requirement, and monitoring soil squeezing effects in different drilling holes 2;
s2, setting a protection coating layer 3 with a corresponding length according to the depth of the drilling hole 2, and then installing and fixing a monitoring ball 4 according to the position of a supporting frame 10 to form a combination; the convenience in measuring different drilling holes 2 is ensured, influencing factors are controlled, and on the premise that the combination is the same, the measured data in different drilling holes 2 are more persuasive and reference;
s3, placing the combined body into the drilling hole 2, and filling fine sand 5 between the drilling hole 2 and the combined body; the fine sand 5 ensures that the fixing effect of the support frame 10 in the drill hole 2 is good, and meanwhile, due to the sealing effect of the mounting unit 10, the fine sand 5 is prevented from entering the mounting unit 10 to influence the measurement process;
s4, testing and adjusting the state of each sensor on the combination body, and recording the data at the moment as an initial value; in the initial state, the lower support frame 10 cannot be guaranteed to completely coincide with the axis of the drill hole 2, so that the relative position relationship between the monitoring ball 4 at different positions and the inner wall of the drill hole 2 is different;
s5, observing the state of the protection coating layer 3 in real time in the pipe pile construction process, and generating a data cloud picture of the protection coating layer 3. And collecting measurement data with different depths, performing fitting calculation, removing unreasonable data, and ensuring that the integral change curve accords with the actual construction state.
In the preferred scheme, when installing the monitoring ball 4 in S2, keep the top of protection coating layer 3 leak ground at least 10cm outward, in S3, after the assembly is put down in drilling 2, through the state of adjusting support frame 10 at top, guarantee that the assembly is placed in the middle, all monitoring balls 4 all laminate at the inside wall of drilling 2 this moment, then the pre-compaction detects the operating condition of each sensor this moment, carries out the packing of fine sand 5 after checking, then carries out the tubular pile construction. The position of the support frame 10 needs to be adjusted after the support frame 10 is lowered, so that the accuracy of the data measured by the monitoring ball 4 is ensured, meanwhile, whether the working state of the monitoring ball 4 at each position is normal or not can be detected, if the problem occurs, the adjustment can be replaced in time, the inconvenience that the support frame is taken out after fine sand 5 is filled in is avoided, after the detection is completed, the fine sand is discharged into the drill hole 2 in a suction mode, then the support frame 10 is taken out, the support frame 4 and other components such as the monitoring ball 4 are damaged, the support frame is reused, and the use cost is controllable.
The above embodiments are only preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this invention are also within the scope of the invention.
Claims (10)
1. High accuracy measuring device of crowded native effect of tubular pile is applied to in a flexible way, characterized by: including wearing to establish support frame (10) in drilling (2), the outside detachable of support frame (10) installs protection coating (3), be equipped with a plurality of monitoring balls (4) in protection coating (3), the outside of monitoring ball (4) is provided with soil pressure membrane (6), the lateral wall of protection coating (3) supports the inside wall that leans on drilling (2), be equipped with qxcomm technology displacement sensor (7) in monitoring ball (4), the outside of drilling (2) is equipped with wireless module (8) and control terminal (9), wireless module (8) and qxcomm technology displacement sensor (7) electrical connection.
2. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 1, which is characterized in that: the support frame (10) comprises a plurality of mounting units (11) which are arranged along the axis, the mounting units (11) are connected through screws (13), the mounting units (11) comprise mounting rings (1101), and the protective coating layer (3) is fixed on the outer sides of the mounting rings (1101).
3. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 1, which is characterized in that: the monitoring ball (4) is also internally provided with a signal switching amplifier (17) and a power supply unit, the signal switching amplifiers (17) in different monitoring balls (4) are electrically connected, and the signal switching amplifiers (17) are electrically connected with the wireless module (8).
4. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 2, which is characterized in that: the protection coating layer (3) comprises a plurality of annular layers (301) and vertical layers (302) which are connected with each other, the annular layers (301) and the vertical layers (302) are arranged along the axial direction of the mounting unit (11), the annular layers (301) are provided with partitions (18), the vertical layers (302) are arranged on one sides of the partitions (18), and the annular layers (301) are attached to the outer side of the mounting ring (1101).
5. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 4, wherein the high-precision measuring device is characterized in that: the middle part of the mounting ring (1101) is provided with a first sleeve (1102), the first sleeve (1102) is connected with the mounting ring (1101) through a plurality of fixed ribs (1103), a sliding rod (1104) is arranged on the mounting ring (1101) and the first sleeve (1102) in a penetrating way, the end part of the sliding rod (1104) is provided with a contact block (1116), the upper part of the first sleeve (1102) is in threaded connection with a driving rod (1105), the lower part of the driving rod (1105) is provided with a conical head (1112), and the contact block (1116) is attached to the conical head (1112);
the installation ring (1101) and the first sleeve (1102) are penetrated and provided with square grooves (1121), the sliding rod (1104) is penetrated and arranged in the square grooves (1121), one end of the contact block (1116) is provided with a contact inclined surface (1127) matched with the slope of the conical head (1112), the driving rod (1105) is connected with the first sleeve (1102) through the cover plate (1107), the sliding rod (1104) is sleeved with a spring (14), and the spring (14) is positioned between the first sleeve (1102) and the contact block (1116).
6. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 5, which is characterized in that: the diameter of the inner side of the cover plate (1107) is matched with that of the outer side of the first sleeve (1102), a threaded sleeve (1122) is arranged in the middle of the cover plate (1107), a conical head (1112) is arranged at the lower part of a driving rod (1105), a first connecting rod (1113) is arranged at the lower part of the conical head (1112), the driving rod (1105) is in threaded connection with the threaded sleeve (1122), the first sleeve (1102) is in threaded connection with the cover plate (1107), a third alignment groove (1111) is arranged on the outer side of the first sleeve (1102), a second alignment groove (1109) and an arrow (1110) are arranged on the outer side of the cover plate (1107), and a first alignment groove (1108) is arranged on the outer side of the driving rod (1105);
the upper portion of the driving rod (1105) is provided with a first counter bore (1117), a first through hole (1118) is formed in the first counter bore (1117) in a penetrating mode, a second through hole (1119) is formed in the first connecting rod (1113) in a penetrating mode, the first connecting rod (1113) is connected with the sealing sleeve (1106) through a screw (13), the screw (13) penetrates through the second through hole (1119), a sealing plug (12) is further arranged, and the sealing plug (12) is sleeved on the first connecting rod (1113).
7. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 6, wherein the high-precision measuring device is characterized in that: the middle part of the cover plate (1107) is provided with a first restraint hole (1125), the middle part of the sealing sleeve (1106) is provided with a second restraint hole (1126), the driving rod (1105) is penetrated in the first restraint hole (1125), the sealing plug (12) is externally attached to the inner side of the second restraint hole (1126), the upper part of the cover plate (1107) is penetrated with a through groove (1124), the first sleeve (1102) is provided with a second threaded hole (1123), and the screw (13) is penetrated in the second threaded hole (1123) and the through groove (1124);
the sealing sleeve (1106) is provided with a first mounting hole (1114) in a penetrating mode, one side, opposite to the first mounting hole (1114), of the sealing sleeve (1106) is provided with a first threaded hole (1115), the outer side of the sealing sleeve (1106) is matched with the inner side of the first sleeve (1102) in diameter, and the first sleeve (1102) is provided with a second mounting hole (1120) matched with the first mounting hole (1114).
8. The high-precision measuring device flexibly applied to the soil compaction effect of the pipe pile according to claim 7, wherein the high-precision measuring device is characterized in that: still be equipped with extension piece (15), extension piece (15) both sides are equipped with second connecting rod (1501) and second counter bore (1503) respectively, extension piece (15) are equipped with a plurality of locking holes (1502) along circumference, pin (16) detachable inserts and establishes on extension piece (15) and actuating lever (1105), extension piece (15) are used for increasing the length of actuating lever (1105), first connecting rod (1113) and second connecting rod (1501) diameter are equal, second counter bore (1503) and first counter bore (1117) diameter are equal.
9. The construction method of the pipe pile soil compaction effect measuring device according to any one of claims 1 to 8, wherein the construction method is characterized in that: the method comprises the following steps:
s1, drilling holes (2) in a stratum (1) by adopting a geological drilling machine near the pile position according to the pile position and the pile length of the pipe pile construction on the engineering site;
s2, setting a protection coating layer (3) with a corresponding length according to the depth of the drilling hole (2), and then installing and fixing a monitoring ball (4) according to the position of the supporting frame (10) to form a combination body;
s3, placing the combined body into the drilling hole (2), and filling fine sand (5) between the drilling hole (2) and the combined body;
s4, testing and adjusting the state of each sensor on the combination body, and recording the data at the moment as an initial value;
s5, observing the state of the protection coating layer (3) in real time in the pipe pile construction process, and generating a data cloud picture of the protection coating layer (3).
10. The construction method of the pipe pile soil compaction effect measuring device according to claim 9, wherein the construction method comprises the following steps: in S2 when installing monitoring ball (4), keep the top of protection coating (3) leak ground at least 10cm outward, in S3, after the assembly is put down in drilling (2), through the state of adjusting support frame (10) at top, guarantee that the assembly is placed in the middle, all monitoring ball (4) all laminate in the inside wall of drilling (2) this moment, then the pre-compaction, detect the operating condition of each sensor this moment, check and carry out the packing of fine sand (5) after having no mistake, then carry out the tubular pile construction.
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| CN202311472392.7A CN117661646B (en) | 2023-11-07 | 2023-11-07 | High-precision measuring device flexibly applied to pipe pile soil compaction effect and construction method thereof |
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| CN117661646B (en) | 2024-05-17 |
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