WO1997043488A1 - Procede de construction d'une structure de piliers et appareil prevu a cet effet - Google Patents

Procede de construction d'une structure de piliers et appareil prevu a cet effet Download PDF

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Publication number
WO1997043488A1
WO1997043488A1 PCT/CN1997/000045 CN9700045W WO9743488A1 WO 1997043488 A1 WO1997043488 A1 WO 1997043488A1 CN 9700045 W CN9700045 W CN 9700045W WO 9743488 A1 WO9743488 A1 WO 9743488A1
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WO
WIPO (PCT)
Prior art keywords
pile
hole
soil
support wing
wing
Prior art date
Application number
PCT/CN1997/000045
Other languages
English (en)
Chinese (zh)
Inventor
Guoliang Zhang
Yongjie Xu
Original Assignee
Guoliang Zhang
Yongjie Xu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN 96104979 external-priority patent/CN1141989A/zh
Priority claimed from CN 96120964 external-priority patent/CN1158376A/zh
Application filed by Guoliang Zhang, Yongjie Xu filed Critical Guoliang Zhang
Priority to AU26894/97A priority Critical patent/AU2689497A/en
Publication of WO1997043488A1 publication Critical patent/WO1997043488A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds

Definitions

  • the present invention relates to a pile structure in the field of civil engineering, water conservancy or municipal engineering, in particular to a construction method for a pile for construction or a pile structure for protecting a foundation pit and a dedicated device therefor.
  • pile foundations for buildings are generally based on pile foundations.
  • the design of the pile foundations is based on one or more geological survey reports of the site foundation.
  • the condition of the shield at the base of each pile of the foundation and the geological situation of the survey site are very different. This will cause the bearing capacity and settlement of the piles that form the foundation to be different, which will make the completed building Uneven hook settlement occurs, which is why more than 80% of the damage to buildings after construction is caused by the foundation, but there is currently no good way to solve the problem in foundation design and construction.
  • step c) when the mechanical properties of the soil at the preliminary position are detected to be poor, the position of the soil layer is still used as the final position of the corresponding pile support, but in the above step d), A plurality of pile legs with corresponding preliminary dimensions are formed on the soil layer area, and the number is more than the number of pile legs initially determined at the position.
  • the above-mentioned pile support wings are pile bearing plates and / or pile branches.
  • Ultrasonic scanners were used to inspect the quality of the above-mentioned holes in the pile body holes and pile support wing holes containing mud.
  • step c) above the computer system is used to calculate the final size and position of the pile support wings.
  • the computer system is used to control the operation of the pile support wing hole forming device.
  • the measured values of the mechanical properties of the soil, the formed pile body, the forming quality of the pile support wing, and its size and position are measured.
  • the relevant signals are converted into digital signals and stored in the computer system.
  • the actual formation of the above-mentioned pile body holes and pile support wing holes is displayed by an image display for easy monitoring.
  • Prestressed tendons are inserted before the concrete is poured. After the concrete reaches a certain strength, the prestressed tendons are prestressed and anchored.
  • step e) the pouring of the concrete is carried out by using the duct method, the string method and the pumped concrete method.
  • the hole of the pile body is a positive circulation drilling method, a reverse circulation drilling method, a spiral drilling method, a jet flushing method, a manual digging method, a grab or bucket soil extraction method, Formed by casing squeezing, hammering and punching.
  • the above-mentioned pile body hole is formed by the mud wall drilling method, and the above-mentioned step d) is performed in the following manner, lifting the pile support wing hole forming device, and waiting for the pile support wing hole forming device to basically stop shaking Or after turning, it slowly descends into the pile body hole, and at the same time as the above device is put, the supply pipe and the return pipe are locked by special-shaped oil pipe clamps at intervals of 3 to 5 m on the upper and lower section connecting pipes in the pile support wing hole forming device.
  • Depth dimensions are marked on the upper and lower segment connecting pipes in the pile support wing hole forming device, and the pile support wing holes are extruded to form a pile support wing hole according to the required elevation in a prescribed sequence.
  • pressure grouting is performed on the bottom end of the pile body and the end of the pile support wing by retaining the grouting tube to strengthen the surrounding soil.
  • the angle between the squeezing direction of the pile support wing hole and the direction perpendicular to the hole wall of the pile body is ⁇ 90.
  • the above-mentioned pile support wing hole is formed by squeezing the soil around the hole wall of the pile body along the parallel direction of the pile body axis.
  • the soil in the first specified area of the selected position of the wall of the pile hole is slanted upward along the axis of the pile hole axis to form a first cavity constituting the pile support wing hole, and then along the axis of the pile hole, A second cavity forming a pile supporting wing is formed by squeezing the soil in the selected position and the second position of the hole wall of the pile body obliquely downward, and the first cavity and the second cavity together form a pile supporting wing hole.
  • the soil in the first specified area of the selected position of the wall of the hole of the pile body is squeezed obliquely upward along the axis of the pile body hole to form a first cavity constituting the wing hole of the pile support.
  • the selected location of the specified area is formed by squeezing the soil.
  • a horizontal hole is formed in the surrounding soil within a predetermined area of the selected position of the hole wall of the pile body, and then the soil around the hole wall of the pile body hole located below the hole is oriented parallel to the axis of the pile body from the hole. Squeeze down to form pile support wing holes.
  • One part of the pile material is injected during the process of forming the pile support wing hole, and the other part is injected after the above process.
  • the pile body hole is protected by the wall protection liquid.
  • the above-mentioned wall protection liquid is cement slurry.
  • pile material is injected into the pile body holes and the pile support wing holes.
  • the pile support wing hole is extruded to form a shape with a long dimension along the axial direction of the pile body hole.
  • the pile support wing hole is squeezed to form a spiral hole extending axially along the pile body hole.
  • the above-mentioned pile support wing hole is formed in the process of raising the pile body hole by the pile body hole forming device.
  • the special equipment of the above method of the present invention includes a pile support wing hole forming device, which is provided with a measuring device for measuring the mechanical properties of the foundation soil when the pile support wing hole is formed.
  • the measuring device is a soil friction property measuring device.
  • the equipment also includes the operating system of the above-mentioned pile-support wing hole forming device, which includes a hydraulic station and a computer monitoring and control system.
  • the hydraulic station includes a hydraulic pressure display.
  • the computer monitoring and control system includes a data processing unit that converts related signals into digital signals and performs calculations on the related digital signals.
  • the various digital signal displays, memories, and operating keyboards reflect the actual forming conditions of the pile body holes and pile support wing holes.
  • Image display system
  • the above computer monitoring and control system includes a work table, which is provided with a keyboard, a display, amplifying device, a pile body hole, a pile support wing hole actual forming image display, a pile support wing hole forming device joystick and a printer .
  • the image display system is a night vision observation system capable of detecting the quality of dry hole formation.
  • the system includes a color camera capable of capturing images, a monitor displaying the images captured by the camera, and the camera and a power supply. Sealed tube, observation head, video light source, video recorder.
  • the above observation heads include a horizontal observation head for observing the wall of the hole and a vertical observation head for observing the bottom of the hole.
  • the above image display system includes an ultrasonic scanner for detecting the quality of the wet hole forming
  • the pile support wing hole forming device is a hydraulic drive type, and includes a bow support mechanism for forming a pile support wing hole, and an extension of the bow compression mechanism constitutes a pressure head in the measuring device.
  • the above-mentioned pile-support wing hole forming device includes a plurality of groups of pile-support wing hole forming mechanisms, and the multi-component forming mechanism is distributed at a certain distance along the longitudinal and / or transverse direction of the equipment.
  • the above-mentioned pile-supporting wing hole forming device includes a plurality of groups of pile-supporting wing hole forming mechanisms, which are arranged symmetrically with respect to the longitudinal axis of the equipment.
  • the above equipment includes a pile body hole forming device, and the pile support wing hole forming device is provided on the pile body hole forming device,
  • the above-mentioned pile support wing hole forming device includes a main support, on which a driver is fixed, and a pile support wing hole forming mechanism is also provided.
  • the mechanism includes a first bow pressing arm and a second bow pressing arm.
  • One end of the second arch pressing arm is hinged with a power rod driven by the driver, the other end of the first arch pressing arm is hinged with one end of the second arch pressing arm, and the other end of the second arch pressing arm is hinged with the first fixing member.
  • the fixing member is located at the side of the hinge point of the first bow pressing arm and the power rod and at the side of the movement axis of the hinge point of the first bow pressing arm and the second bow pressing arm relative to the moving axis of the hinge point of the power rod and the first bow pressing arm.
  • the second fixing member is hinged to one end of the first branch plate, the other end of the first branch plate is a free end portion, and the inside of the first branch plate abuts on the hinge portion of the first bow pressing arm and the second bow pressing arm.
  • a guide plate is also provided on the inner side of the first branch plate.
  • the guide plate is provided with a guide groove in a parallel direction of the first branch plate.
  • the first arch pressing arm and the second arch pressing arm are hinged by a lateral movement axis. Make the above-mentioned lateral movement axis at its Sliding, the guide groove extending toward the bow of the second lateral side of the press arm movement does not occur from the axis to the lateral displacement at the outer
  • the above device includes a main support, which is provided with a driver, and a pile-support wing hole forming mechanism.
  • the mechanism includes a first bow pressing arm and a second bow pressing arm. One end of the first bow pressing arm is hinged with the power rod.
  • the power lever is driven by the driver, the other end of the first bow pressing arm is hinged with one end of the second bow pressing arm, and the other end of the second bow pressing arm is hinged with a fixing member fixed on the main support.
  • a first branch plate is integrally formed on the arch pressing arm, and a second branch plate is formed on the second arch pressing arm.
  • the above equipment includes a telescopic power squeezer, which can Squeeze the soil around the hole wall of the pile body in a straight line,
  • the above device includes an extruder that can be inserted into the soil around the hole wall of the pile body in the horizontal direction, and is connected to the driver so that when it is inserted into the soil around the hole wall, the hole can be squeezed down in a parallel direction of the axis of the pile body hole. Soil around the wall.
  • the above equipment includes a pile hole forming device, which is an excavator,
  • the above-mentioned earth digger is a spiral drilling rig, which includes a drill pipe, which is a hollow pipe, the pile pipe is provided with a pile support wing hole forming device, and the bottom of the hollow drill pipe is provided with an injectable pile material communicating therewith. Or the nozzle of the wall protection liquid, the top of the drill pipe is in communication with the supply liquid of the injection material.
  • Another special equipment of the present invention includes a crawler running mechanism, a turntable, a cab located on the turntable, an operation system of a pile support wing hole forming device, and a boom.
  • the bottom of the boom is connected to the turntable and its top is suspended by a sling.
  • the branch hole and / or bearing plate slot hole forming device is guided and fixed by a clamper, and the rear end of the clamper is connected to the turntable.
  • the bearing capacity and settlement of each foundation pile can be truly obtained, and the bearing capacity and settlement of all the piles are basically kept uniform as a whole, so that the formed foundation will not produce unfavorable conditions.
  • the uniform settlement can greatly reduce the hidden dangers during the use period after construction.
  • the invention can reduce the foundation exploration workload before construction and reduce or eliminate the need for test piles or pile loading tests before and after construction, thereby greatly reducing the construction cost and shortening the construction period.
  • the present invention penetrates the geological situation of the exploration foundation during the construction process of the pile, so that the bottom of each pile and the cost can be clearly understood, and the cost of the pile foundation is reduced.
  • the pile branch / pile bearing plate of the method according to the present invention reaches the highest phase force, the settlement during use is minimized.
  • the advantages of the pile foundation used as a pressure bearing for the building of the present invention are described above, but It is noted that the present invention can be completely used in pile foundations that support tensile forces and overturning support structures, and can evenly resist buoyancy, that is, the building has only a small uniform float, or it can even resist bending moments, that is, Each pile in the supporting structure has a phenomenon of relatively small angular displacement that is substantially consistent.
  • FIGS. 2A-2C are schematic diagrams of a first embodiment in which a pile body hole and a pile branch hole and / or a bearing plate slot hole are simultaneously formed in the method of the present invention, showing three different construction stages;
  • 3A-3C are schematic diagrams of a second embodiment of a pile body hole and a pile branch hole and / or a bearing plate slot hole simultaneously formed in the method of the present invention, showing three different construction stages; Three different construction phases;
  • 5A-5C are schematic diagrams of a fourth embodiment in which a pile body hole and a pile branch hole and / or a bearing plate slot hole are simultaneously formed in the method of the present invention, showing three different construction stages;
  • FIG. 6 is a schematic diagram of a first embodiment of the device of the present invention having both a pile hole forming device and a pile branch hole and / or a bearing plate slot hole device;
  • FIG. 7 is a schematic diagram of a second embodiment of the device of the present invention having both a pile hole forming device and a pile branch hole and / or a bearing plate slot hole device;
  • FIG. 8 is a schematic diagram of a first embodiment of a branch hole and / or a bearing plate slot hole forming device in the device of the present invention having a pile body hole forming device and a pile branch hole and / or bearing plate slot hole device;
  • FIG. 9 is a schematic diagram of a second embodiment of a branch hole / or bearing plate slot hole forming device in the device of the present invention having a pile body hole forming device and a pile branch hole and / or bearing plate slot hole device;
  • FIG. 10 is a schematic view of a folded state of the forming apparatus shown in FIG. 9;
  • FIG. 11 is a schematic plan view of the working state of the forming device shown in FIG. 9;
  • FIG. 12 is a schematic diagram of a fourth embodiment of a branch hole and / or bearing plate slot hole forming device in the device of the present invention.
  • FIG. 13 is a diagram showing a folded state of the device shown in FIG. 12; FIG.
  • FIG. 14 is a perspective view of another embodiment of a branch hole and / or bearing plate slot hole forming device in the device of the present invention.
  • FIG. 15 is a perspective view of another dedicated device of the present invention.
  • Fig. 16 is a perspective view of an operating system of a pile branch hole forming device in the apparatus of the present invention. The best way to implement the invention
  • the extrusion mechanism is connected to the pressure gauge, and the elastic modulus or friction coefficient of the soil is obtained according to the value in the pressure gauge, so that it can be determined whether the soil layer at this position is suitable for making pile wings. If the soil layer is too soft, you can adjust the pile
  • the position of the supporting wing or the size of the supporting wing and the number of supporting wing in the soil layer can meet the original design requirements of the supporting wing at this position. Please refer to Figure 1B.
  • the position of the pile support wing refers to the squeeze detection of the soil layer near the weak soil layer by the above-mentioned pile support wing hole forming device until the required holding layer is found, and then the required quantity of the soil layer position determined in the manner described above is formed.
  • the soil layer meets the requirements, directly make the initially determined pile branch wing holes, and form the prescribed pile branch wing holes (that is, pile branch holes and / or piles) in the pile body holes in the manner described above. Bearing plate slot). Then, the whole pile hole is scanned with a scanner to check the forming quality of the pile support wing hole and the pile body hole wall. As shown in FIG. 1C, the prestressed tendons are then poured into the concrete, and after the concrete reaches a certain strength, the prestressed tendons are stretched and anchored.
  • the steps include forming a pile hole with the device 1 of the present invention. As shown in FIG.
  • the device includes a branch hole and / or a bearing plate slot hole forming device 2 and a drilling device 3, and the pile support wing hole is formed.
  • a pressure rod (not shown) is connected to the device 2.
  • the pressure rod is in communication with a pressure gauge (not shown) on the ground, and then the soil of the hole wall is squeezed in an obliquely upward direction, as shown in FIG. 2B.
  • the soil on the top of the hole is used as a fulcrum to squeeze the soil on the wall of the hole in an obliquely downward direction to form a branch hole and / or the soil on the top of the hole formed by the bearing plate groove is to be inclined downwardly.
  • the steps include forming a pile hole with the device of the present invention, the device comprising a branch hole and / or a bearing plate slot hole forming device 2 and a drilling device 3, and a pressure pestle is connected to the pile support wing hole forming device 2.
  • the above pressure rod is in communication with a pressure gauge (not shown in the figure) on the ground, as shown in FIG.
  • the device of the present invention is used to obliquely upward and obliquely Simultaneously pressing down the hole wall soil to form a pile branch hole and / or a bearing plate slot hole, as shown in Figure 3B, and finally squeezed to form the shape shown in Figure 3C.
  • the steps include forming the pile body hole using the device 1 of the present invention, the device 1 including the branch hole and / or A bearing plate slot hole forming device 2 and a drilling device 3, the pile support wing hole forming device 2 is connected with a pressure rod (not shown in the figure), and the pressure rod and a pressure gauge on the ground (not shown in the figure) ) Communication, as shown in FIG. 4A, during the process of forming the pile hole downward or after forming the pile hole, the above-mentioned branch hole and / or bearing plate slot hole forming device 2 can be used to squeeze the soil obliquely. As shown in FIG. 4B. The dotted line in FIG. 4B is the final squeezed state, and the state shown in FIG. 4C can be formed after the extrusion is completed.
  • the steps include forming the pile body hole with the device 1 of the present invention, the device 1 including a branch hole and / or a bearing Force plate slot hole forming device 2 and drilling device 3, the pile support wing hole forming device 2 is connected with a pressure pestle (not shown in the figure), the above pressure rod and a pressure gauge on the ground (not shown in the figure)
  • a horizontal groove 4 can be formed on the wall of the pile hole, as shown in FIG. 5B.
  • a specific branch hole and / or bearing plate slot hole forming device 2 (the device will be described later) in the device 1 of the present invention is used to press the soil downward from the horizontal slot 4 to form the branch hole and / Or bearing disk slot, as shown in Figure 5C.
  • FIG. 6 is an embodiment of the device of the present invention having both a pile hole forming device and a pile branch hole and / or a bearing plate slot hole device.
  • the device 1 includes a diving drill 3, and the diving drill 3 includes a drill rod 5.
  • the rod 5 is provided with a power device 6 and a pump 6A, a drill bit 7 is provided at the bottom of the drill rod, and the drill rod is also provided with one or more branch holes and / or bearing plate slot hole forming devices 2.
  • FIG. 7 is another embodiment of the device of the present invention.
  • the device 1 includes an auger 8, which includes a driver 9 at the top, a spiral blade 10, a drill rod 11, and one or more branch holes formed in the drill rod 11. And / or bearing plate slot hole forming device 2.
  • Figure 8 is a form of the branch hole and / or bearing plate slot hole forming device in the device of the present invention
  • the device 2 includes two extrusion heads 17 that can be horizontally extended, as shown in Figure 8.
  • Two extrusions There is a driving cylinder 18 between the pressure heads.
  • the driving cylinder 18 When the driving cylinder 18 is extended, the extrusion head 17 can be extended in the horizontal direction.
  • the two extrusion heads are also connected to one end of the vertical cylinder 19.
  • the pressing head 17 can be pressed downwards against the soil, and the forming device 2 is particularly suitable for the method shown in FIG. 4.
  • 9 and 10 show a third form of a branch hole and / or bearing plate slot hole extrusion forming device used in the device of the present invention.
  • the device 2 includes an outer tube 29, which is provided with a plurality of forming mechanisms and input reinforcement.
  • the material channel 29A and the outer tube 29 are provided with holes for the forming mechanism to extend.
  • a pump station is provided outside the outer tube. It communicates with the oil cylinder in the forming mechanism through an oil circuit tube (not shown in the figure), as shown in FIG. 10.
  • a vertical power rod 30 is provided in the forming mechanism, and the power rod 30 is driven by the above-mentioned oil cylinder (not shown in the figure).
  • the rod 30 passes the vertical moving shaft 31 and the upper bow pressing arm 31 and the upper bow pressing arm.
  • the upper bow pressing arm 32 is articulated with the lower branch plate 34 integrally formed by the lower bow pressing arm through the lateral movement shaft 33, the bottom of the plate 34 is hinged with the lower fixed shaft 35, and the shaft 35 is fixed relative to the outer tube 29.
  • Upper branch The upper end of the plate 36 is hinged to the upper fixed shaft 37, which is fixed relative to the outer tube 29.
  • Figs. 9 and 10 only the left one (half) and the right one of the two symmetrical forming mechanisms are drawn. It is the same as that on the left, so it is not shown in the figure. Of course, one, three or more synchronization mechanisms may be provided as required.
  • a guide plate 33 is provided inside the upper branch plate 36, and a free end portion 39 of the upper branch plate 36 is located at the connection between the upper bow pressing arm 32 and the lateral movement shaft 33.
  • the guide plate 38 moves the guide groove 38A of the upper lateral movement shaft 33 from the upper side.
  • the lateral movement shaft 33 is also hinged with the upper branch slide plate 40, and the slide plate 40 abuts on the upper branch.
  • the inner side of the plate 36 extends upwards.
  • a composite upper branch plate 41 is provided on both sides of the lower branch plate 34.
  • the bottom thereof is hinged to the lower fixed shaft 35.
  • the free end portion 42 of the composite lower branch plate 41 is provided with a limiting block 43.
  • FIG. 9 shows the above-mentioned mechanism in an extended state
  • FIG. 10 shows the above-mentioned mechanism in a collapsed state
  • the above-mentioned forming device 2 further includes four retaining plates 45 ( 2 on each side), which are respectively provided on both sides of the upper branch plate 36.
  • the guide arm 46 at the lower end of the upper branch plate 36 inside the retaining plate 45 is inserted in advance, the uncompressed raw soil 48 within the effective width 47 of the branch plate It is impossible to collapse to the space 49 after the holes are formed on both sides, and the action of the upper branch plate slide 40 effectively prevents the soil above the upper branch plate 36 from falling down, ensuring the soil under the supporting force plate.
  • Compact and compact the advantage of the above device is that it can be avoided during production Branch bore and / or the entire disc floatation device supporting force is also generated when the grooves and apertures formed in an irregular shape, easy to collapse disadvantages.
  • FIG. 12 shows a fourth type of pile branch hole and / or bearing plate slot hole forming device.
  • the device 2 is similar to the structure of FIG. 10 except that the upper branch plate in the device of FIG. 10 is pressed out first, and then lowered. The branch plate is pressed out, so the device shown in FIG. 10 is suitable for the method shown in FIG. 3, and the device 2 shown in FIG. 11 also has upper and lower branch plates 50, 51, which are simultaneously pressed out, which is suitable for the method shown in FIG. 4.
  • the device 2 shown in FIG. 12 is further provided with an upper arch pressing arm 52 and a lower arch pressing arm 53, and the upper arch pressing arm 52 and the upper branch plate 50 are integrated.
  • the lower branch plate 51 is integrally connected with the lower arch pressing arm 53.
  • the above-mentioned extrusion forming device may be provided with a plurality of extrusion plates or heads in the circumferential direction, so that the bearing plate can be basically formed only after 1-2 times when it is manufactured.
  • another pile branching hole and / or bearing plate slot hole forming device 2 in the device of the present invention includes an outer sleeve 62, which is provided with two pairs of bow pressing arms, each pair of bow pressing The arms include an upper bow pressing arm 63 and a lower bow pressing arm 64.
  • the top end of the upper bow pressing arm 53 is hinged to the connecting member 65.
  • the bottom end of the upper bow pressing arm 63 is hinged to the lower bow pressing arm 64.
  • the end is connected to the connecting member 66.
  • the top of the outer sleeve 62 is provided with a driving cylinder 67.
  • the driving cylinder 67 is provided with an upper piston 68 and a lower piston 69.
  • the upper piston 68 is rigidly connected to the connecting member 66 through a piston rod 70.
  • the lower piston 69 is rigidly connected to the connecting member 65 through a piston rod 71.
  • the middle side arm of the driving cylinder 67 is provided with a mouth 72 for passing liquid, and the bottom side wall of the driving cylinder 67 is provided with a mouth 73 for liquid passage.
  • a mouth 74 is provided at the top for liquid passage.
  • another dedicated device ⁇ of the present invention includes a track walking mechanism 90 and a turntable.
  • the operating system 93 of the above-mentioned pile branch hole forming device is basically the same as the operating system 73 of the pile branch hole forming device shown in FIG. 16 (to be described later), except that the former is provided on the walkable special equipment ⁇ of the present invention.
  • the latter is related to the branch hole and / or bearing plate slot hole forming device. Separately installed on the ground.
  • the operating system of the pile-supporting wing hole forming device in the device may also be the operating system 73 of the above-mentioned pile-supporting wing hole forming device, which is provided on the ground.
  • the system 73 includes a hydraulic station 76 and a computer. Monitoring and control system 87.
  • the above hydraulic station 76 includes a hydraulic pressure display
  • the above computer monitoring and control system 87 includes a data processing unit that converts related signals into digital signals and performs operations on the related digital signals.
  • the various digital signal displays and memories described above act as keyboards to reflect the actual conditions of the pile hole and pile support wing hole. Formed image display system and printer.
  • the above-mentioned computer monitoring and control system 87 includes a workbench 78, which is provided with a keyboard 79, a display 80, a sound reinforcement device 81, a pile hole, and a pile support wing hole.
  • the image display system 82 is a night vision observation system capable of detecting the quality of dry hole formation.
  • the system includes a color camera capable of capturing images, a monitor displaying the images captured by the cameras, and the camera and a power source installed on the ground.
  • the above observation head includes a horizontal observation head for observing a hole wall and a vertical observation head (not shown in the figure) for observing a hole bottom.
  • the image display system includes an ultrasonic scanner (not shown in the figure) for detecting the amount of the shield formed by the wet hole.
  • the above computer monitoring and control system includes a unit (not shown in the figure) for controlling the longitudinal direction of the pile branch wing hole forming device.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Cette invention se rapporte à un procédé de construction d'une structure de piliers et à un appareil prévu à cet effet. Ce procédé comporte les étapes suivantes: effecturer un examen géologique du sol pour obtenir la grandeur initiale du fût du pilier et la grandeur initiale et la position des saillies sur la paroi latérale du pilier; pratiquer un trou pour le fût du pilier; effectuer une mesure de la paroi latérale du trou à l'aide d'un moyen servant à former un trou pour les saillies, afin de décider de leurs tailles et position initiales; pratiquer un trou pour les saillies en pressant ledit moyen dans le sol; injecter du béton dans le trou du fût du pilier et dans les trous des saillies, pour former un pilier en béton; construire les autres piliers en suivant les étapes mentionnées ci-dessus, afin de former une structure de piliers. Selon ce procédé, connaître les informations géologiques sur la position de chaque pilier tout en exécutant la construction permet d'obtenir en une seule fois les caractéristiques effectives de résistance de portée/déformation, et tout tassement/affaissement non uniforme d'un bâtiment est évité.
PCT/CN1997/000045 1996-05-14 1997-05-09 Procede de construction d'une structure de piliers et appareil prevu a cet effet WO1997043488A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU26894/97A AU2689497A (en) 1996-05-14 1997-05-09 Method of constructing a pile structure and apparatus thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN 96104979 CN1141989A (zh) 1996-05-14 1996-05-14 桩基础的施工方法及其专用设备
CN96104979.0 1996-05-14
CN96120964.X 1996-12-10
CN 96120964 CN1158376A (zh) 1996-12-10 1996-12-10 桩结构的施工方法及其专用设备

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Publication number Priority date Publication date Assignee Title
CN110763192A (zh) * 2019-11-20 2020-02-07 合肥工业大学 土体沉降循环监测装置及监测方法
CN113235674A (zh) * 2021-05-13 2021-08-10 安喜坡 一种基于岩土工程地质勘察的桩基设计方法
CN114482021A (zh) * 2021-09-26 2022-05-13 南水北调东线江苏水源有限责任公司 预设反向摩阻力联合桩底土固结的方法及形成的灌注桩
CN117328797A (zh) * 2023-12-01 2024-01-02 山西八建集团有限公司 一种桩基施工用桩基防塌方的打孔装置

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US3507124A (en) * 1969-05-06 1970-04-21 Lee A Turzillo Method for making concrete piles
CN2127397Y (zh) * 1992-07-28 1993-02-24 孙佩绚 分支桩液压连杆成孔器
CN1093428A (zh) * 1994-04-29 1994-10-12 张俊生 现场灌注桩的施工方法及其成型机

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US1951643A (en) * 1931-12-12 1934-03-20 Warren L Bald Pile forming apparatus
GB1102682A (en) * 1965-04-13 1968-02-07 Gnii Keramzitu A device for making enlargements in holes for piles
US3507124A (en) * 1969-05-06 1970-04-21 Lee A Turzillo Method for making concrete piles
CN2127397Y (zh) * 1992-07-28 1993-02-24 孙佩绚 分支桩液压连杆成孔器
CN1093428A (zh) * 1994-04-29 1994-10-12 张俊生 现场灌注桩的施工方法及其成型机

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110763192A (zh) * 2019-11-20 2020-02-07 合肥工业大学 土体沉降循环监测装置及监测方法
CN113235674A (zh) * 2021-05-13 2021-08-10 安喜坡 一种基于岩土工程地质勘察的桩基设计方法
CN114482021A (zh) * 2021-09-26 2022-05-13 南水北调东线江苏水源有限责任公司 预设反向摩阻力联合桩底土固结的方法及形成的灌注桩
CN114482021B (zh) * 2021-09-26 2023-12-29 南水北调东线江苏水源有限责任公司 预设反向摩阻力联合桩底土固结的方法及形成的灌注桩
CN117328797A (zh) * 2023-12-01 2024-01-02 山西八建集团有限公司 一种桩基施工用桩基防塌方的打孔装置
CN117328797B (zh) * 2023-12-01 2024-02-09 山西八建集团有限公司 一种桩基施工用桩基防塌方的打孔装置

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