CN116356804A - Pile foundation karst cave construction equipment and construction method for karst geology - Google Patents
Pile foundation karst cave construction equipment and construction method for karst geology Download PDFInfo
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- CN116356804A CN116356804A CN202310508327.9A CN202310508327A CN116356804A CN 116356804 A CN116356804 A CN 116356804A CN 202310508327 A CN202310508327 A CN 202310508327A CN 116356804 A CN116356804 A CN 116356804A
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- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000011161 development Methods 0.000 claims abstract description 7
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 26
- 238000004891 communication Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 229920002730 Poly(butyl cyanoacrylate) Polymers 0.000 claims description 3
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- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 2
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- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
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- 238000005553 drilling Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 1
- 238000007790 scraping Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/66—Mould-pipes or other moulds
- E02D5/68—Mould-pipes or other moulds for making bulkheads or elements thereof
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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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- General Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention relates to the technical field of pile foundation karst cave treatment under karst geology, in particular to pile foundation karst cave construction equipment and a construction method for the karst geology. The pile foundation karst cave construction equipment and the construction method for karst geology can track and detect the karst cave development condition in the pile bottom 10m in the pore-forming process by fully utilizing the slurry condition of the bored pile, and have the advantages of low cost, high speed, high precision and the like; through adopting lift follow-up operation mode, can carry out sonar detection and processing to whole drilling inner wall, not only can handle the pile bottom, can also operate the pore wall, detection scope and processing scope are more extensive.
Description
Technical Field
The invention relates to the technical field of pile foundation karst cave treatment under karst geology, in particular to pile foundation karst cave construction equipment and a construction method.
Background
In karst development areas, a large-scale engineering is developed by adopting a bored pile foundation, and accidents such as hole collapse, drilling burying, slurry leakage and the like can be caused by the existence of karst cave in the drilled holes, so that great influence is caused to construction engineering and surrounding buildings. Because the bored pile needs a mud wall protection, the existing geophysical prospecting method is difficult to effectively survey and treat the karst cave in the mud of the bored pile.
Therefore, some sonar detection methods are dependent on the karst cave in the market, but the current sonar treatment mode is only one detection means, and still the karst cave appearing on the bottom or the inner wall cannot be effectively treated, so that the overall construction difficulty is very high.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problems in the prior art, an improved pile foundation karst cave construction device and method for karst geology are provided, the current sonar processing mode is only a detection means, and the karst cave appearing on the bottom or the inner wall still cannot be effectively processed, so that the overall construction difficulty is very high.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a pile foundation karst cave construction equipment for under karst geology, includes a pile casing, overhead elevator motor, the sonar detection probe that is connected through communication cable with the monitoring unit, accommodate motor and is used for carrying the outside conveyer pipe of backfilling powder, a pile casing lateral surface on seted up and indulge and put the elevating port, it is equipped with indulges the guide rail to indulge to put elevating port inside fixed, a combined annular detection control frame by overhead elevator motor control has been cup jointed through indulging on the pile casing lateral surface, accommodate motor installs in combined annular detection control frame outside, outside conveyer pipe lower extreme is linked together inside through inserting combined annular detection control frame and the combined annular detection control frame, install the put support frame that is used for assembling sonar detection probe, externally mounted side direction to wipe the put support frame of material subassembly and externally mounted automatically controlled vaulting pole on the combined annular detection control frame lateral surface.
The side adjusting screw rod is movably assembled on two sides of the inside of the longitudinal guide rail, a middle threaded lifting seat is arranged between the side adjusting screw rods in the inside of the longitudinal guide rail, and the middle threaded lifting seat is sleeved on the outer side of the side adjusting screw rod through two side inner threaded adjusting grooves and is assembled with the side adjusting screw rod in a threaded manner.
The combined annular detection control frame comprises an annular outer guide rail fixedly arranged on the outer side surface of the middle threaded lifting seat, an annular inner housing movably inserted into an opening at the outer side of the annular outer guide rail, an outer closed housing fixed on the outer side surface of the annular inner housing, a lateral mounting base fixed on the outer side surface of the annular outer guide rail and an annular adjusting tooth slot arranged on the side wall of the assembly surface of the annular inner housing.
The adjusting motor is fixedly assembled with the lateral installation base by being inserted into the lateral installation base, and an adjusting gear meshed with the annular adjusting tooth slot is axially arranged on an adjusting shaft at the lower end of the adjusting motor.
The upper detection support and the middle support frame are fixedly arranged on the outer side face of the outer closed cover, and the outer side end of the lower mounting support is provided with an integrated structure middle assembly seat for mounting the electric control stay bar.
The side direction is smeared the material subassembly and is including movable mounting in put inside inboard regulation vaulting pole, upset of support frame are smeared the material scraper blade and are fixed the outside discharge mouth on the upset is smeared the material scraper blade lateral wall, inboard flexible end in the outside of adjusting the vaulting pole is smeared the material scraper blade lateral wall activity assembly with the upset.
The inner side surface of the annular inner housing is provided with an integral stirring blade for improving the activity of the internal mixture.
A pile foundation karst cave construction method for karst geology comprises the steps of probe placement, hole wall detection and software analysis;
placing a probe: the sonar detection probe is arranged at one end of the upper detection bracket by using the orifice bracket through the communication cable and is connected with the site host through the communication cable; when the pile bottom of the manual hole digging pile is free of slurry or water, 10-20cm of water is required to be poured in, so that a sonar emitter and a sonar sensor of a sonar detection probe can be contacted with water, and sonar stress wave energy is coupled with a hole wall interface;
and (3) hole wall detection: after the sonar detection probe is placed, the site host computer controls the sonar emission driving module and the sonar emitter to emit sonar stress waves through the communication cable, controls the sonar signal processing module to receive sonar signals, and transmits the data of the received sonar digitization to the site host computer through the communication cable for display and processing through the communication port of the singlechip;
software analysis: and (3) utilizing analysis software of a PBCA karst cave sonar detector to arrange all detected sonar receiving signals according to the azimuth sequence of the sonar receiving sensor to generate a detected sonar stress wave profile and comprehensively processing and analyzing to obtain the development condition of the inner karst cave.
The karst cave is detected in the advancing process by the sonar detection probe, then the mixed filler is conveyed downwards by using an external conveying pipe, the construction is performed by adopting a backfill rubble clay method, the compaction karst cave is filled by using the backfill rubble and the powdery clay, and then the overturning smearing scraper is driven to scrape the hole wall by rotation, so that the retaining wall is formed.
The beneficial effects of the invention are as follows:
(1) The pile foundation karst cave construction equipment and the construction method for karst geology can track and detect the karst cave development condition in the pile bottom 10m in the pore-forming process by fully utilizing the slurry condition of the bored pile, and have the advantages of low cost, high speed, high precision and the like;
(2) By adopting a lifting follow-up operation mode, sonar detection and treatment can be performed on the whole inner wall of the drilling hole, the pile bottom can be treated, the hole wall can be operated, and the detection range and the treatment range are wider;
(3) The lateral smearing component and the electric control stay bar are combined, so that the equipment can be supported and limited while vertical lifting is not affected, the overall stability in the construction process is improved, and meanwhile, the coating and scraping operations can be performed, so that the operation is more convenient;
(4) By adopting the design of the combined annular detection control frame, synchronous rotation can be ensured while vertical lifting is realized, meanwhile, the design of built-in conveying raw materials is utilized, the stability and accuracy of conveying the raw materials are ensured, and meanwhile, the internal activity of the raw materials is maintained;
(5) The short-distance construction is performed quickly after the detection is completed, manual operation is not needed, the safety is greatly improved, and the construction cost is lower.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of a combined annular test control box according to the present invention.
Fig. 3 is an internal cross-sectional view of the assembled end of the modular annular test control frame of the present invention.
FIG. 4 is a schematic block diagram of karst cave sonar according to the present invention.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The pile foundation karst cave construction equipment for karst geology is shown in fig. 1, fig. 2 and fig. 3, including a protection sleeve 1, overhead elevator motor 2, the sonar probe 3 that is connected through communication cable with the monitoring unit, accommodate motor 4 and be used for carrying backfill powder, set up on the protection sleeve 1 lateral surface and indulge the elevating port, it is equipped with indulge and put guide rail 6 to indulge the fixed fixing of elevating port, it has cup jointed the combination formula annular detection control frame by overhead elevator motor 2 control to protect 1 lateral surface through indulging on the guide rail 6, accommodate motor 4 installs in the outside of combination formula annular detection control frame, the outer conveyer 5 lower extreme is linked together with the inside of combination formula annular detection control frame through inserting combination formula annular detection control frame, install the put support frame 7 that is used for assembling sonar probe 3 on the combination formula annular detection control frame lateral surface, put support frame 8 and the put installation automatically controlled lever 9 of externally mounted in the side direction material subassembly.
The overhead lifting motor 2, the sonar detection probe 3 and the adjusting motor 4 are all of the prior art. The overhead lifting motor 2 drives the combined annular detection control frame to lift, and the adjusting motor 4 drives the combined annular detection control frame to rotate.
In order to match with vertical lifting adjustment, lateral adjusting screw rods 11 controlled by an overhead lifting motor 2 are movably assembled on two sides of the inside of the longitudinal guide rail 6, a middle threaded lifting seat 12 is arranged between the lateral adjusting screw rods 11 inside the longitudinal guide rail 6, and the middle threaded lifting seat 12 is sleeved outside the lateral adjusting screw rods 11 through two side internal thread adjusting grooves and is assembled with the lateral adjusting screw rods 11 in a threaded manner.
For cooperation and movable assembly, the combined annular detection control frame comprises an annular outer guide rail 13 fixedly arranged on the outer side surface of the middle threaded lifting seat 12, an annular inner housing 14 movably inserted into the opening at the outer side of the annular outer guide rail 13, an outer closing housing 15 fixed on the outer side surface of the annular inner housing 14, a lateral mounting base 16 fixed on the outer side surface of the annular outer guide rail 13 and an annular adjusting tooth slot 17 arranged on the side wall of the assembly surface of the annular inner housing 14.
The outer closing cap 15 serves to close the outer opening of the annular outer rail 13.
In order to match with the rotation adjustment, the adjusting motor 4 is fixedly assembled with the lateral mounting base 16 by being inserted into the lateral mounting base 16, and an adjusting gear meshed with the annular adjusting tooth socket 17 is axially arranged on an adjusting shaft at the lower end of the adjusting motor 4.
The adjustment motor rotates through the adjustment gear, thereby controlling the rotation of the annular inner housing 14.
For the cooperation assembly, put detection support 7 and put support frame 8 in put and all fixed mounting on the outside of outside closure 15, put the mounting bracket 10 outside end in the lower part and have the in-set assembly seat 177 of the integral structure that is used for installing automatically controlled vaulting pole 9.
The lower mounting bracket 10 is fixed on the lower side wall of the annular outer guide rail 13. The electronically controlled stay 9 is prior art and is extended to promote stability of the side wiper assembly.
In order to match the lateral angle adjustment and the packing, the lateral smearing component comprises an inner side adjusting supporting rod 18 movably arranged in the middle supporting frame 8, a turnover smearing scraping plate 19 and an outer discharging nozzle 20 fixed on the side wall of the turnover smearing scraping plate 19, and the outer telescopic end of the inner side adjusting supporting rod 18 is movably assembled with the side wall of the turnover smearing scraping plate 19.
The inner side adjusting stay bar 18 is in the prior art and is used for controlling the overturning of the overturning wiping scraping plate 19, and meanwhile, a magnetic control valve in the prior art is installed inside the outer discharging nozzle 20 and is used for controlling the opening and closing of the outer discharging nozzle 20.
In order to maintain the activity of the material inside the annular outer rail 13, the annular inner housing 14 has on its inner side integrally constructed stirring blades 21 for elevating the activity of the internal mixture.
When the adjusting motor 4 drives the annular inner housing 14 to rotate, the stirring blades 21 in the annular inner housing 14 stir the materials in the annular outer guide rail 13, then the materials in the annular outer guide rail 13 are extruded into the annular inner housing 14 by pressure, and then the materials are discharged to a construction position from the outer discharging nozzle 20 on the side wall of the overturning scraping blade 19, and the materials are scraped while coating, so that the lateral or bottom filling effect is improved.
The pile foundation karst cave construction method for karst geology as shown in figures 1 and 4 comprises the steps of probe placement, hole wall detection and software analysis;
placing a probe: the sonar detection probe 3 is arranged at one end of the upper detection bracket 7 by using an orifice bracket through a communication cable and is connected with a site host through the communication cable; when the pile bottom of the manual hole digging pile is free of slurry or water, 10-20cm of water is required to be poured in, so that a sonar emitter and a sonar sensor of the sonar detection probe 3 can be contacted with water, and sonar stress wave energy is coupled with a hole wall interface;
and (3) hole wall detection: after the sonar detection probe 3 is placed, the site host computer controls the sonar emission driving module and the sonar emitter to emit sonar stress waves through the communication cable, controls the sonar signal processing module to receive sonar signals, and transmits the data of the received sonar digitization to the site host computer for display and processing through the communication cable through the communication port of the singlechip;
software analysis: and (3) utilizing analysis software of a PBCA karst cave sonar detector to arrange all detected sonar receiving signals according to the azimuth sequence of the sonar receiving sensor to generate a detected sonar stress wave profile and comprehensively processing and analyzing to obtain the development condition of the inner karst cave.
The karst cave is detected in the advancing process by the sonar detection probe 3, then the mixed filler is conveyed downwards by the outer conveying pipe 5, the construction is performed by adopting a backfill rubble clay method, the compacted karst cave is filled by the backfill rubble and the powdery clay, and then the overturning smearing scraper 19 is driven to scrape the hole wall by rotation, so that the protection wall is formed.
Transmitting: the field host controls the sonar emission driving module through the communication cable, sends an electric signal to the sonar emission transducer through the power amplifier, and converts the electric signal into an acoustic signal to be excited vertically downwards or obliquely towards the wall of the hole to be excited obliquely in the bored pile bottom mud environment.
Propagation: under the coupling action of pile bottom mud, the acoustic impedance difference between different mediums is effectively reduced, the acoustic coupling rate is improved, and more sonar stress wave energy can smoothly enter bedrock
Reflection: after sonar stress wave enters the bedrock and propagates downwards, as the karst cave at the bottom of the pile, the weak rock layer and the rock mass at the bottom of the pile form a wave impedance surface with obvious change, the physical properties of the wave impedance surface are represented by the density of rock or soil and the propagation speed change of elastic wave. Therefore, the interface produces a strong reflected echo for the sonar stress wave transmission.
And (3) receiving: the sonar reflection wave is received by 4 sonar receiving transducers in different directions around the sonar transmitting transducer. The azimuth angles of the 4 receiving transducers are measured by a three-dimensional electronic compass installed inside the probe. The sonar reflection wave is converted into an electric signal by a receiving transducer, amplified, filtered and converted into a digital signal, and the digital signal is transmitted to a site host computer for display and processing by a communication cable.
The pile foundation karst cave construction equipment and the construction method for karst geology can track and detect the karst cave development condition in the pile bottom 10m in the pore-forming process by fully utilizing the slurry condition of the bored pile, and have the advantages of low cost, high speed, high precision and the like; by adopting a lifting follow-up operation mode, sonar detection and treatment can be performed on the whole inner wall of the drilling hole, the pile bottom can be treated, the hole wall can be operated, and the detection range and the treatment range are wider; the lateral smearing component and the electric control stay bar 9 are combined, so that the equipment can be supported and limited while vertical lifting is not affected, the overall stability in the construction process is improved, and meanwhile, the coating and scraping operations can be performed, so that the operation is more convenient; by adopting the design of the combined annular detection control frame, synchronous rotation can be ensured while vertical lifting is realized, meanwhile, the design of built-in conveying raw materials is utilized, the stability and accuracy of conveying the raw materials are ensured, and meanwhile, the internal activity of the raw materials is maintained; the short-distance construction is performed quickly after the detection is completed, manual operation is not needed, the safety is greatly improved, and the construction cost is lower.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. Pile foundation karst cave construction equipment for under karst geology, including protecting a section of thick bamboo (1), overhead elevator motor (2), with monitoring unit pass through sonar probe (3) that communication cable is connected, accommodate motor (4) and be used for carrying the outside conveyer pipe (5) of backfilling powder, characterized by: the combined type annular detection control frame is characterized in that a longitudinal lifting opening is formed in the outer side face of the protective cylinder (1), a longitudinal guide rail (6) is fixedly arranged in the longitudinal lifting opening, a combined type annular detection control frame controlled by an overhead lifting motor (2) is sleeved on the outer side face of the protective cylinder (1) through the longitudinal guide rail (6), the adjusting motor (4) is arranged on the outer side of the combined type annular detection control frame, the lower end of the outer conveying pipe (5) is communicated with the inner portion of the combined type annular detection control frame through the insertion of the combined type annular detection control frame, and an upper detection support (7) for assembling a sonar detection probe (3), a middle support frame (8) of an external mounting lateral smearing component and a lower mounting support (10) of an external mounting electronic control support rod (9) are arranged on the outer side face of the combined type annular detection control frame.
2. The pile foundation karst cave construction equipment for karst geology of claim 1, wherein: the automatic lifting device is characterized in that lateral adjusting screw rods (11) controlled by the overhead lifting motor (2) are movably assembled on two sides of the inside of the longitudinal guide rail (6), a middle threaded lifting seat (12) is arranged between the lateral adjusting screw rods (11) in the longitudinal guide rail (6), and the middle threaded lifting seat (12) is sleeved on the outer sides of the lateral adjusting screw rods (11) through two side internal thread adjusting grooves and is in threaded assembly with the lateral adjusting screw rods (11).
3. The pile foundation karst cave construction equipment for karst geology of claim 2, wherein: the combined annular detection control frame comprises an annular outer guide rail (13) fixedly arranged on the outer side surface of a middle threaded lifting seat (12), an annular inner housing (14) movably inserted into an opening at the outer side of the annular outer guide rail (13), an outer closing housing (15) fixed on the outer side surface of the annular inner housing (14), a lateral mounting base (16) fixed on the outer side surface of the annular outer guide rail (13) and an annular adjusting tooth slot (17) arranged on the side wall of the assembly surface of the annular inner housing (14).
4. A pile foundation karst cave construction apparatus for use in karst geology according to claim 3, characterized in that: the adjusting motor (4) is fixedly assembled with the lateral mounting base (16) through being inserted into the lateral mounting base (16), and an adjusting gear meshed with the annular adjusting tooth groove (17) is axially arranged on an adjusting shaft at the lower end of the adjusting motor (4).
5. The pile foundation karst cave construction equipment for karst geology of claim 4, wherein: the upper detection support (7) and the middle support frame (8) are fixedly arranged on the outer side face of the outer closed cover (15), and the outer side end of the lower mounting support (10) is provided with an integrated structure middle assembly seat (177) for mounting the electric control stay bar (9).
6. The pile foundation karst cave construction equipment for karst geology of claim 4, wherein: the side direction is smeared material subassembly and is included movable mounting in put inside inboard regulation vaulting pole (18) of support frame (8), upset and smears material scraper blade (19) and fix outside discharge mouth (20) on the upset is smeared material scraper blade (19) lateral wall, the flexible end in inboard regulation vaulting pole (18) outside and upset are smeared material scraper blade (19) lateral wall movable assembly.
7. The pile foundation karst cave construction equipment for karst geology of claim 4, wherein: the annular inner housing (14) has integral structural stirring vanes (21) on the inner side for enhancing the activity of the internal mixture.
8. A pile foundation karst cave construction method for karst geology is characterized in that: the method comprises the steps of probe placement, hole wall detection and software analysis;
placing a probe: the sonar detection probe (3) is arranged at one end of the upper detection bracket (7) by using the orifice bracket through the communication cable and is connected with the site host through the communication cable; when the pile bottom of the manual hole digging pile is free of slurry or water, 10-20cm of water is required to be poured in, so that a sonar emitter and a sonar sensor of a sonar detection probe (3) can be contacted with water, and sonar stress wave energy is coupled with a hole wall interface;
and (3) hole wall detection: after the sonar detection probe (3) is placed, the site host computer controls the sonar emission driving module and the sonar emitter to emit sonar stress waves through the communication cable, controls the sonar signal processing module to receive sonar signals, and transmits the data digitized by the received sonar to the site host computer through the communication port of the singlechip for display and processing through the communication cable;
software analysis: and (3) utilizing analysis software of a PBCA karst cave sonar detector to arrange all detected sonar receiving signals according to the azimuth sequence of the sonar receiving sensor to generate a detected sonar stress wave profile and comprehensively processing and analyzing to obtain the development condition of the inner karst cave.
9. The method for constructing the karst cave according to claim 8, wherein: the karst cave is detected in the advancing process by the sonar detection probe (3), then the mixed filler is conveyed downwards by using an external conveying pipe, the construction is performed by adopting a backfill rubble clay method, the compacted karst cave is filled by throwing rubble and powdery clay, and then the overturning smearing scraper (19) is driven to scrape the hole wall by rotation, so that the protection wall is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310508327.9A CN116356804A (en) | 2023-05-06 | 2023-05-06 | Pile foundation karst cave construction equipment and construction method for karst geology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310508327.9A CN116356804A (en) | 2023-05-06 | 2023-05-06 | Pile foundation karst cave construction equipment and construction method for karst geology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116356804A true CN116356804A (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310508327.9A Pending CN116356804A (en) | 2023-05-06 | 2023-05-06 | Pile foundation karst cave construction equipment and construction method for karst geology |
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| Country | Link |
|---|---|
| CN (1) | CN116356804A (en) |
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2023
- 2023-05-06 CN CN202310508327.9A patent/CN116356804A/en active Pending
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