CN113944152A - Construction method of combined pile of steel pipe pile and steel sheet pile - Google Patents
Construction method of combined pile of steel pipe pile and steel sheet pile Download PDFInfo
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- CN113944152A CN113944152A CN202111341661.7A CN202111341661A CN113944152A CN 113944152 A CN113944152 A CN 113944152A CN 202111341661 A CN202111341661 A CN 202111341661A CN 113944152 A CN113944152 A CN 113944152A
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
- E02D5/08—Locking forms; Edge joints; Pile crossings; Branch pieces
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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
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/16—Auxiliary devices rigidly or detachably arranged on sheet piles for facilitating assembly
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/24—Placing by using fluid jets
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Abstract
The invention discloses a construction method of a combined pile of a steel pipe pile and a steel sheet pile, which comprises the following steps: after the mth steel pipe pile is constructed to a preset height, a positioning sleeve is installed; lifting the mth steel sheet pile, adjusting the verticality of the steel sheet pile, and vertically pressing the steel sheet pile down to a preset height; installing a high-pressure water jet cutter in the (m + 1) th steel pipe pile, adjusting the verticality of the steel pipe pile, vertically pressing the steel pipe pile to a preset height, and cutting a soil body below the steel pipe pile through the high-pressure water jet cutter in the process of pressing the steel pipe pile; and repeating the steps until all the steel pipe piles and the steel plate piles are constructed. The positioning sleeve is based on the constructed steel pipe pile, controls the straightness of the subsequent steel plate pile and the steel pipe pile, and has the advantages of simple structure, convenience in operation and easiness in popularization. The high-pressure water jet cutter can enable soil bodies to form mud liquid through high-pressure water flow, reduce pile sinking difficulty, and control pressure in the cavity to be within an allowable range, so that construction safety is improved.
Description
Technical Field
The invention relates to a construction method of a combined pile of a steel pipe pile and a steel sheet pile, and belongs to the technical field of pile foundation construction.
Background
The PC method pile is generally a composite pile with various sections formed by combining a larsen pile and a steel pipe, and is suitable for a supporting structure of a foundation pit supporting project. As a reusable green environment-friendly building material, the pile in the PC construction method has the advantages of high strength, light weight, stable material quality, reliable quality, good durability, good weather resistance, no pollution in the whole process of water stopping and use, convenience in construction, simplicity and convenience in inspection and acceptance links, good reusability and economy and the like, and is valued and favored by the foundation pit industry.
The water-stopping locking notches of the steel pipe pile and the Larsen steel plate pile of the pile in the PC construction method need to be mutually overlapped and occluded, the Larsen steel plate pile mainly plays a role in stopping water, the steel pipe pile is of a main stressed structure, and after the foundation pit basement outer wall construction is finished and backfilling soil construction is carried out, the steel pipe pile and the Larsen steel plate pile can be completely pulled and recovered. In construction, the straightness of the steel pipe pile and the Larsen steel plate pile is an important control index, and poor control can directly influence the folding of the pc construction method pile enclosure structure.
In addition, the pile sinking process has two types of static pressure and hammering, and the steel pipe pile is inserted into the soil body through vertical acting force. However, in pile sinking construction, the situation that soil is compact and pile sinking is difficult sometimes occurs, and if construction is forced, the end head or the pile body of the steel pipe pile can be damaged.
How to realize rapid pile sinking and accurately control the straightness of the combined pile under the condition of compact soil body is a technical problem of pile sinking construction.
Disclosure of Invention
The application provides a construction method of a combined pile in a PC construction method and a special positioning sleeve, which are used for solving the problem that the straightness of a steel pipe pile and a steel sheet pile is not suitable to be controlled in the prior art.
In order to solve the technical problems, the invention comprises the following technical scheme:
a construction method of a combined pile of a steel pipe pile and a steel sheet pile comprises the following steps:
step one, after the mth steel pipe pile is constructed to a preset height, installing a positioning sleeve, sleeving a non-closed sleeve II on the top of the mth steel pipe pile, adjusting the angle of the positioning sleeve and fixing, wherein the non-closed sleeve I is positioned at the position of the (m + 1) th steel pipe pile; wherein m is more than or equal to 1;
the positioning sleeve comprises a first non-closed sleeve, a second non-closed sleeve, a first connecting plate, a second connecting plate, a first support, an inner notch roller, a second support and a notch double roller; the non-closed sleeve I comprises a first arc-shaped plate and a second arc-shaped plate which are oppositely arranged, and the non-closed sleeve II comprises a third arc-shaped plate and a fourth arc-shaped plate which are oppositely arranged; the top end of the third arc-shaped plate is fixedly connected with the top end of the fourth arc-shaped plate through a connecting piece; the first arc-shaped plate is connected with the third arc-shaped plate through a first connecting plate, and the second arc-shaped plate is connected with the fourth arc-shaped plate through a second connecting plate; the first connecting plate and the second connecting plate are arranged at intervals, and the gap is used for vertical construction of the steel sheet pile; the first support is arranged on the first connecting plate, and the inner tooth opening roller is arranged on the first support and corresponds to the position of the locking notch component on one side of the steel pipe pile; the second support is arranged at the opening end of the second arc-shaped plate far away from the second connecting plate, and the tooth mouth double-roller is arranged on the second support and corresponds to the position of the locking notch component at the other side of the steel pipe pile;
step two, hoisting the mth steel sheet pile, enabling the bottom end of the mth steel sheet pile to be located in a gap between a first connecting plate and a second connecting plate of a positioning sleeve, adjusting the verticality of the steel sheet pile, and vertically pressing down the steel sheet pile to enable the steel sheet pile to reach a preset height;
step three, installing a high-pressure water jet cutter in the (m + 1) th steel pipe pile, hoisting the (m + 1) th steel pipe pile, enabling the bottom end of the (m + 1) th steel pipe pile to be located in a non-closed sleeve I of a positioning sleeve, enabling an internal tooth opening roller to abut against a lock catch component at one end of the (m + 1) th steel pipe pile, enabling a roller, close to one side of the (m + 1) th steel pipe pile, of a tooth opening double roller to abut against the end part of the lock catch component at the other end of the steel pipe pile, adjusting the verticality of the steel pipe pile, vertically pressing the steel pipe pile, and cutting a soil body below the steel pipe pile through the high-pressure water jet cutter in the construction of pressing the steel pipe pile to enable the steel pipe pile to reach a preset height;
the high-pressure water jet cutter comprises a water jet cutter structure seat, a movable ring, two connecting rod mechanisms and two clamping discs; the water jet scalpel structure seat comprises a hollow pipeline which is communicated up and down, the top of the hollow pipeline is communicated with an external high-pressure water pipe, and the bottom of the hollow pipeline is communicated with a high-pressure spray head; the water jet scalpel structure seat sequentially comprises a straight pipe section, a cavity section and a support section from top to bottom, wherein the cavity section comprises a hydraulic cavity, the hydraulic cavity is communicated with an external high-pressure water pipe II through a connecting port, and first hinged supports are arranged on two sides of the support section; the movable ring is sleeved on the straight pipe section and is positioned above the cavity section; one end of the movable ring is provided with a clamping movable plug which is positioned in the hydraulic chamber and can slide up and down in the hydraulic chamber; the other end of the movable ring is positioned outside the hydraulic cavity, and second hinged supports are arranged on two sides of the movable ring; the clamping disc is respectively connected with the movable ring and the base sleeve through a connecting rod mechanism; the connecting rod mechanism comprises a first connecting rod and a second connecting rod; the first end of the first connecting rod is hinged with the second hinged support, the second end of the first connecting rod is hinged with the first end of the second connecting rod, the middle part of the second connecting rod is hinged with the first hinged support, the second end of the connecting rod is hinged with one side of the clamping disc, and the other side of the clamping disc is used for being supported on the inner wall of the steel pipe pile;
and step four, repeating the steps one to three until all the steel pipe piles and the steel plate piles are constructed.
Further, the connecting piece is a cross connecting plate with annular reinforcing ribs;
two of the four end parts of the cross connecting plate are connected with the third arc-shaped plate, and the other two end parts of the cross connecting plate are connected with the fourth arc-shaped plate;
the annular reinforcing ribs are distributed by taking the center of the cross connecting plate as a circle center, and the four directions of the cross connecting plate are fixed with the annular reinforcing ribs.
Furthermore, two first supporting seats are arranged on the first connecting plate at intervals in the vertical direction, and two inner tooth mouth rollers play a role in guiding together;
two second supports are arranged on the second arc-shaped plate, the two second supports are arranged at a vertical interval, and two toothed mouth double-roller wheels play a role in guiding together.
Further, the construction method of the first steel pipe pile comprises the following steps:
carrying out on-site measurement, paying off and positioning, and excavating a guide groove;
hoisting an ICE resonance-free hammer by a large crawler crane, positioning by a manipulator, hoisting a first steel pipe pile by a steel wire rope hook, and hoisting the first steel pipe pile and the ICE resonance-free hammer to a position above a preset pile position;
and (4) placing the steel pipe pile down to the ground, clamping and calibrating the ICE resonance-free hammer manipulator, and delivering the first steel pipe pile to a specified elevation by vibration.
Furthermore, a pressure sensor for detecting hydraulic pressure in the hydraulic cavity is arranged at a connecting port of the cavity section, the pressure sensor is connected with a control terminal, and the control terminal is connected with an alarm device; control terminal presetting allowable range [ P ] of working pressure P0,P1]；
When P > P1When the alarm device is in use, the control terminal controls the alarm device to send out first warning information; the water pressure in the hydraulic cavity is released by reducing the water supply in the high-pressure water pipe II, so that the P is in an allowable range;
when P < P0When the alarm device is in use, the control terminal controls the alarm device to send out second warning information; and water pressure in the hydraulic cavity is increased by increasing water supply in the high-pressure water pipe II, so that the pressure P is in an allowable range.
Furthermore, a plurality of transverse holes are formed in the side wall of the bottom end of the steel pipe pile, mud liquid overflows from the transverse holes under the action of pressure, and a mud retaining wall is formed on the outer side of the steel pipe pile, so that the steel pipe pile is smoothly placed.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the application provides a steel-pipe pile and steel-pipe pile's composite pile construction method, establish on the steel-pipe pile under construction through two covers of the non-closed sleeve with the position sleeve, control subsequent steel-pipe pile and steel-pipe pile's straightness accuracy, the gap between first connecting piece and the second connecting piece pushes down the passageway as the steel-pipe pile, and non-closed sleeve pushes down the passageway as follow-up steel-pipe pile, and steel-pipe pile can be guaranteed to internal tooth mouth gyro wheel and tooth mouth double roller and transfer smoothly, the position sleeve has simple structure, convenient operation, easily advantage of popularization, has avoided the potential safety hazard that pile pressing in-process manual control straightness accuracy exists, and construction quality is good, the composite pile straightness accuracy can satisfy the construction needs. In addition, high-pressure water flow is sprayed out through a high-pressure nozzle of the high-pressure water jet cutter, so that soil in the steel pipe pile becomes loose and forms slurry under the impact of the high-pressure water flow, and the pile sinking construction of the steel pipe pile can be completed under a smaller vertical load. Moreover, the clamping disc can be abutted against or separated from the inner wall of the steel pipe pile by pressurizing or releasing pressure in the hydraulic cavity, and the device has the advantages of convenience in operation, high efficiency and convenience; the construction safety is improved by controlling the pressure in the cavity to be within an allowable range.
Drawings
FIG. 1 is a schematic view showing the connection between a steel pipe pile and a Larsen steel sheet pile according to the present invention;
FIG. 2 is a flow chart of a construction method of a combined pile of a steel pipe pile and a steel sheet pile according to the present invention;
FIG. 3 is a schematic structural view of a positioning sleeve according to the present invention;
FIG. 4 is a top view of the alignment sleeve of the present invention;
FIG. 5 is a schematic view of a steel pipe pile and a Larsen steel sheet pile constructed by using a positioning sleeve according to the present invention;
FIG. 6 is a schematic structural view of the high-pressure water jet cutter supported in the steel pipe pile according to the present invention;
FIG. 7 is a top view of the high-pressure water jet cutter of the present invention supported in a steel pipe pile;
fig. 8 is a schematic structural view of the water jet structural seat and the movable ring of the present invention.
The numbers in the figures are as follows:
1-steel pipe pile; 2-steel sheet piles; 3-a fore shaft assembly; 4-a first locking notch; 5-a second locking notch; 6-mth steel pipe pile; 7-m +1 steel pipe piles;
10-non-closing sleeve one; 11-a first arc; 12-a second arcuate plate;
20-a non-closed sleeve II; 21-a third arc; 22-a fourth arcuate plate; 23-a connector;
31-a first connection plate; 311-a first support; 312-internal notched rollers; 32-a second connecting plate; 321-a second support; 322-notched double roller; 33-lifting lugs.
51-a connector; 52-external water pipe I; 53-external high-pressure water pipe II;
60-water jet structural seat; 601-hollow conduit; 602-high pressure showerhead; 61-a straight tube section; 62-a chamber section; 621-a hydraulic chamber; 622-connection port; 63-a support section; 631-a first pivoting support;
70-a movable ring; 71-clamping the movable plug; 72-a second hinged support;
80-a linkage mechanism; 81-link one and 82-link two;
90-clamping the disc.
Detailed Description
The following describes a method for constructing a steel pipe pile and a steel sheet pile according to the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
The embodiment provides a construction method of a combined pile of a steel pipe pile and a steel plate pile. As shown in fig. 1, the composite pile is generally a composite pile formed by sequentially engaging a steel pipe pile 1 and a steel sheet pile 2 through a locking notch assembly 3. The two sides of the steel pipe pile 1 are provided with first locking notches 4, the two ends of the Larsen pile adopt matched second locking notches 5, and the first locking notches 4 and the second locking notches 5 of the adjacent steel pipe pile and the steel plate pile 2 are meshed. By way of example, the first locking notch and the second locking notch may adopt a male-female structure or an interlocking structure.
As shown in fig. 2 to 8, the construction method includes the following steps:
step one, after the mth steel pipe pile 6 is constructed to a preset height, installing a positioning sleeve, sleeving a non-closed sleeve II on the top of the mth steel pipe pile 6, adjusting the angle of the positioning sleeve and fixing, wherein the non-closed sleeve I is positioned at the position of the (m + 1) th steel pipe pile; wherein m is more than or equal to 1.
Referring to fig. 3 to 5, the positioning sleeve includes a first non-closing sleeve 10, a second non-closing sleeve 20, a first connecting plate 31, a second connecting plate 32, a first support 311, an internal toothed roller 312, a second support 312, and a toothed double roller 322. The first non-closing sleeve 10 comprises a first arc-shaped plate 11 and a second arc-shaped plate 12 which are arranged oppositely, and the second non-closing sleeve 20 comprises a third arc-shaped plate 21 and a fourth arc-shaped plate 22 which are arranged oppositely. The first arc-shaped plate 11 is connected with the third arc-shaped plate 21 through a first connecting plate 31, and the second arc-shaped plate 12 is connected with the fourth arc-shaped plate 22 through a second connecting plate 32. The first connecting plate 31 and the second connecting plate 32 are arranged at intervals and oppositely, and the width of a gap formed between the first connecting plate and the second connecting plate is matched with the thickness of the steel sheet pile. The inner diameters of the first non-closed sleeve 10 and the second non-closed sleeve 20 are matched with the outer diameter of the steel pipe pile. The tops of the third arc-shaped plate 21 and the fourth arc-shaped plate 22 are connected through a connecting piece 23, for example, the connecting piece 23 is a cross connecting plate with annular reinforcing ribs, two ends of the cross connecting plate are connected with the third arc-shaped plate 21, the other two ends of the cross connecting plate are connected with the fourth arc-shaped plate 22, the annular reinforcing ribs are arranged by taking the center of the cross connecting plate as a circle center, and are used for increasing the rigidity of the cross connecting plate, and furthermore, the cross reinforcing ribs can be provided with 2 or three or more channels. The first support 311 is disposed on the first connecting plate 31, and the internal notch roller 312 is disposed on the first support 311 and corresponds to the position of the locking notch assembly, so as to vertically guide the steel sheet pile 2. The second support 312 is arranged at the opening end of the second arc-shaped plate 12 far away from the second connecting plate 32, and the double-roller tooth 322 is arranged on the second support 312 and corresponds to the position of the locking notch assembly for vertical guiding of the steel pipe pile.
And step two, hoisting the mth steel sheet pile, enabling the bottom end of the mth steel sheet pile to be located in a gap between the first connecting plate and the second connecting plate of the positioning sleeve, adjusting the verticality of the steel sheet pile, and vertically pressing down the steel sheet pile to enable the steel sheet pile to reach a preset height.
Step three, installing a high-pressure water jet cutter in the (m + 1) th steel pipe pile 7, hoisting the (m + 1) th steel pipe pile, enabling the bottom end of the (m + 1) th steel pipe pile 7 to be located in the non-closed sleeve I of the positioning sleeve, enabling the inner tooth opening idler wheels to abut against the locking component at one end of the (m + 1) th steel pipe pile 7, enabling the idler wheels, close to one side of the (m + 1) th steel pipe pile, of the tooth opening double idler wheels to abut against the end part of the locking component at the other end of the steel pipe pile, adjusting the verticality of the steel pipe pile, vertically pressing down the steel pipe pile, and cutting a soil body below the steel pipe pile through the high-pressure water jet cutter in the construction of the pressing down steel pipe pile to enable the steel pipe pile to reach a preset height.
Referring to fig. 6 to 8, the high pressure water jet cutter includes a water jet cutter structure holder 60, a movable ring 70, two link mechanisms 80, and two chucking plates 90. The water jet structure base 60 comprises a hollow pipeline 601 which is vertically through, the top of the hollow pipeline 601 is communicated with a first external high-pressure water pipe 53 through a connector 51, the bottom of the hollow pipeline is communicated with a high-pressure spray head 602, and for example, the high-pressure spray head 602 can be a high-pressure screw spray head. The water jet structure seat 60 is sequentially provided with a straight pipe section 61, a cavity section 62 and a support section 63 from top to bottom, and the straight pipe section 61, the cavity section 62 and the support section 63 can be integrally formed or welded. The chamber section 62 comprises a hydraulic chamber 621, which hydraulic chamber 621 may be arranged in a ring shape, surrounding the outside of the hollow conduit 601. The hydraulic chamber 621 is communicated with the external high-pressure water pipe 54 through a connecting port 622. First articulated supports 631 are provided on either side of support section 63, first articulated supports 631 being, for example, apertured binaural panel supports. The movable ring 70 is sleeved on the straight pipe section 61 and is positioned above the cavity section 62; one end of the movable ring 70 is provided with a clamping movable plug 71, and the clamping movable plug 71 is located in the hydraulic chamber 621 and can slide up and down in the hydraulic chamber 621. The other end of the movable ring 70 is located outside the hydraulic chamber 621 and is provided with a second hinge support 72 on both sides, the second hinge support 72 being a perforated binaural board support by way of example. The gripping disc 90 is connected to the movable ring 70 and the base sleeve by a linkage 80, respectively. The link mechanism 80 comprises a first link 81 and a second link 82; the first end of the first connecting rod 81 is hinged to the second hinged support 72, the second end of the first connecting rod is hinged to the first end of the second connecting rod, the middle of the second connecting rod is hinged to the first hinged support 631, the second end of the second connecting rod is hinged to one side of the clamping disc 90, and the other side of the clamping disc 90 is used for being supported on the inner wall of the steel pipe pile. The hinged form can be fixed by a pin shaft and a cotter pin. Furthermore, the side of the clamping disc 90, which contacts with the inner wall of the steel pipe pile, is arc-shaped, and the curvature of the arc-shaped is matched with the inner diameter of the steel pipe pile; the rubber pad is arranged on one side of the arc-shaped clamping disc 90, so that the contact area between the clamping disc 90 and the steel pipe pile can be increased, the friction force between the clamping disc 90 and the steel pipe pile is increased, and the safety is improved.
The working principle of the high-pressure water jet cutter is as follows: the high-pressure water pipe II injects water into the hydraulic cavity 621 through the connecting port 622 to push the clamping movable plug 71 to move upwards, so that the movable ring 70 drives the connecting rod mechanism 80 to move, and the clamping disc 90 is expanded outwards and can be firmly abutted against the inner part of the steel pipe pile; the high-pressure water pipe injects water into the hollow pipeline 601 and sprays the water out through the high-pressure spray head 602, soil in the steel pipe pile becomes loose and forms slurry under the impact of high-pressure water flow, and the steel pipe pile can sink smoothly under smaller vertical load; the high-pressure water pipe II stops injecting water into the hydraulic cavity 621, the pressure in the hydraulic cavity 621 is released, the clamping movable plug 71 moves downwards, the movable ring 70 drives the connecting rod mechanism 80 to move, the clamping disc 90 retracts, the clamping disc 90 is separated from the inner wall of the steel pipe pile, and the high-pressure water cutter can be moved out of the steel pipe pile.
And step four, repeating the steps one to three until all the steel pipe piles and the steel plate piles are constructed.
Further, be provided with two first supports 311 on the first connecting plate 31, two vertical intervals of first support 311 set up, and two internal tooth mouth gyro wheels 312 play the guide effect jointly, make steel sheet pile 2 construct perpendicularly. Further, be provided with two second supports 312 on the second arc 12, two vertical intervals of second support 312 set up, and two tooth mouth double roller 322 play the guide effect jointly, make the perpendicular construction of steel-pipe pile. Further, in order to facilitate the hoisting of the positioning sleeve, lifting lugs 33 are respectively arranged on the first connecting plate 31 and the second connecting plate 32. In order to reduce the weight, the first connecting plate 31 and the second connecting plate 32 are hollow.
Further, the connection of the chamber sections 62A pressure sensor for detecting the hydraulic pressure in the hydraulic chamber 621 is arranged at the port 622, the pressure sensor is connected with a control terminal, and the control terminal is connected with an alarm device; control terminal presetting allowable range [ P ] of working pressure P0,P1]When P > P1When the alarm device is in use, the control terminal controls the alarm device to send out first warning information; when P < P0And the control terminal controls the alarm device to send out second warning information. So set up, can make the water pressure in the hydraulic pressure chamber 621 keep in reasonable within range, prevent that too big pressure from causing destruction to activity ring 70, link mechanism 80 etc. still can avoid the pressure undersize to lead to compressing tightly between dish and the steel-pipe pile frictional force too little, cause high-pressure water sword gliding or slope.
The applicant finds that, in the construction process, if the traditional construction process adopts a complex structure and complex procedures to control the straightness of the combined pile, the construction efficiency is influenced, the combined pile is not acceptable by workers in the construction process, the straightness is still manually controlled in the construction process, the construction quality is influenced, and in addition, the construction personnel stand beside the steel pipe pile and the steel plate pile in the pile pressing process also have safety risks. The special positioning sleeve for the construction of the composite pile in the PC construction method provided by the embodiment is characterized in that the non-closed sleeve II 20 is sleeved at the top of the steel pipe pile, the constructed steel pipe pile is used as a foundation, the straightness of the subsequent steel plate pile 2 and the steel pipe pile is controlled by the positioning sleeve, a gap between the first connecting piece 23 and the second connecting piece 23 is used as a pressing channel of the steel plate pile 2, the non-closed sleeve I10 is used as a pressing channel of the subsequent steel pipe pile, and the internal tooth opening roller 312 and the tooth opening double rollers 322 can ensure that the steel plate pile 2 and the steel pipe pile are smoothly placed downwards.
The application provides a high-pressure water sword can be through high-pressure shower nozzle 602 blowout high-pressure rivers, makes the soil body in the steel-pipe pile become flexible and form mud liquid under the high-pressure rivers impact, can accomplish the steel-pipe pile sinking construction under less vertical load. Furthermore, by injecting water into the hydraulic chamber 621, the clamping can be performedThe disc 90 is outwards opened and can be firmly propped against the inside of the steel pipe pile, and the clamping disc 90 can be separated from the inner wall of the steel pipe pile by releasing the water pressure in the hydraulic chamber 621, so that the high-pressure water jet cutter is moved out of the steel pipe pile, and the high-pressure water jet cutter has the advantages of convenience in operation, high efficiency and convenience. In addition, by providing a pressure sensor for detecting the hydraulic pressure in the hydraulic chamber 621 in the chamber section 62, the pressure P in the control chamber is in the allowable range [ P0,P1]The damage to the movable ring 70, the connecting rod mechanism 80 and the like caused by overlarge pressure can be prevented, and the gliding or the inclination of the high-pressure water jet cutter caused by too small friction force between the pressing disc and the steel pipe pile caused by overlarge pressure can be avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A construction method of a combined pile of a steel pipe pile and a steel sheet pile is characterized by comprising the following steps:
step one, after the mth steel pipe pile is constructed to a preset height, installing a positioning sleeve, sleeving a non-closed sleeve II on the top of the mth steel pipe pile, adjusting the angle of the positioning sleeve and fixing, wherein the non-closed sleeve I is positioned at the position of the (m + 1) th steel pipe pile; wherein m is more than or equal to 1;
the positioning sleeve comprises a first non-closed sleeve, a second non-closed sleeve, a first connecting plate, a second connecting plate, a first support, an inner notch roller, a second support and a notch double roller; the non-closed sleeve I comprises a first arc-shaped plate and a second arc-shaped plate which are oppositely arranged, and the non-closed sleeve II comprises a third arc-shaped plate and a fourth arc-shaped plate which are oppositely arranged; the top end of the third arc-shaped plate is fixedly connected with the top end of the fourth arc-shaped plate through a connecting piece; the first arc-shaped plate is connected with the third arc-shaped plate through a first connecting plate, and the second arc-shaped plate is connected with the fourth arc-shaped plate through a second connecting plate; the first connecting plate and the second connecting plate are arranged at intervals, and the gap is used for vertical construction of the steel sheet pile; the first support is arranged on the first connecting plate, and the inner tooth opening roller is arranged on the first support and corresponds to the position of the locking notch component on one side of the steel pipe pile; the second support is arranged at the opening end of the second arc-shaped plate far away from the second connecting plate, and the tooth mouth double-roller is arranged on the second support and corresponds to the position of the locking notch component at the other side of the steel pipe pile;
step two, hoisting the mth steel sheet pile, enabling the bottom end of the mth steel sheet pile to be located in a gap between a first connecting plate and a second connecting plate of a positioning sleeve, adjusting the verticality of the steel sheet pile, and vertically pressing down the steel sheet pile to enable the steel sheet pile to reach a preset height;
step three, installing a high-pressure water jet cutter in the (m + 1) th steel pipe pile, hoisting the (m + 1) th steel pipe pile, enabling the bottom end of the (m + 1) th steel pipe pile to be located in a non-closed sleeve I of a positioning sleeve, enabling an internal tooth opening roller to abut against a lock catch component at one end of the (m + 1) th steel pipe pile, enabling a roller, close to one side of the (m + 1) th steel pipe pile, of a tooth opening double roller to abut against the end part of the lock catch component at the other end of the steel pipe pile, adjusting the verticality of the steel pipe pile, vertically pressing the steel pipe pile, and cutting a soil body below the steel pipe pile through the high-pressure water jet cutter in the construction of pressing the steel pipe pile to enable the steel pipe pile to reach a preset height;
the high-pressure water jet cutter comprises a water jet cutter structure seat, a movable ring, two connecting rod mechanisms and two clamping discs; the water jet scalpel structure seat comprises a hollow pipeline which is communicated up and down, the top of the hollow pipeline is communicated with an external high-pressure water pipe, and the bottom of the hollow pipeline is communicated with a high-pressure spray head; the water jet scalpel structure seat sequentially comprises a straight pipe section, a cavity section and a support section from top to bottom, wherein the cavity section comprises a hydraulic cavity, the hydraulic cavity is communicated with an external high-pressure water pipe II through a connecting port, and first hinged supports are arranged on two sides of the support section; the movable ring is sleeved on the straight pipe section and is positioned above the cavity section; one end of the movable ring is provided with a clamping movable plug which is positioned in the hydraulic chamber and can slide up and down in the hydraulic chamber; the other end of the movable ring is positioned outside the hydraulic cavity, and second hinged supports are arranged on two sides of the movable ring; the clamping disc is respectively connected with the movable ring and the base sleeve through a connecting rod mechanism; the connecting rod mechanism comprises a first connecting rod and a second connecting rod; the first end of the first connecting rod is hinged with the second hinged support, the second end of the first connecting rod is hinged with the first end of the second connecting rod, the middle part of the second connecting rod is hinged with the first hinged support, the second end of the connecting rod is hinged with one side of the clamping disc, and the other side of the clamping disc is used for being supported on the inner wall of the steel pipe pile;
and step four, repeating the steps one to three until all the steel pipe piles and the steel plate piles are constructed.
2. The method of constructing a composite pile of a steel pipe pile and a steel sheet pile according to claim 1,
the connecting piece is a cross connecting plate with annular reinforcing ribs;
two of the four end parts of the cross connecting plate are connected with the third arc-shaped plate, and the other two end parts of the cross connecting plate are connected with the fourth arc-shaped plate;
the annular reinforcing ribs are distributed by taking the center of the cross connecting plate as a circle center, and the four directions of the cross connecting plate are fixed with the annular reinforcing ribs.
3. The method of constructing a composite pile of a steel pipe pile and a steel sheet pile according to claim 1,
two first supports are arranged on the first connecting plate, the two first supports are vertically arranged at intervals, and the two inner tooth mouth rollers play a role in guiding together;
two second supports are arranged on the second arc-shaped plate, the two second supports are arranged at a vertical interval, and two toothed mouth double-roller wheels play a role in guiding together.
4. The method of constructing a composite pile of a steel pipe pile and a steel sheet pile according to claim 1,
the construction method of the first steel pipe pile comprises the following steps:
carrying out on-site measurement, paying off and positioning, and excavating a guide groove;
hoisting an ICE resonance-free hammer by a large crawler crane, positioning by a manipulator, hoisting a first steel pipe pile by a steel wire rope hook, and hoisting the first steel pipe pile and the ICE resonance-free hammer to a position above a preset pile position;
and (4) placing the steel pipe pile down to the ground, clamping and calibrating the ICE resonance-free hammer manipulator, and delivering the first steel pipe pile to a specified elevation by vibration.
5. The method of constructing a composite pile of a steel pipe pile and a steel sheet pile according to claim 1,
a pressure sensor for detecting hydraulic pressure in the hydraulic cavity is arranged at the connecting port of the cavity section, the pressure sensor is connected with a control terminal, and the control terminal is connected with an alarm device; control terminal presetting allowable range [ P ] of working pressure P0,P1]；
When P > P1When the alarm device is in use, the control terminal controls the alarm device to send out first warning information; the water pressure in the hydraulic cavity is released by reducing the water supply in the high-pressure water pipe II, so that the P is in an allowable range;
when P < P0When the alarm device is in use, the control terminal controls the alarm device to send out second warning information; and water pressure in the hydraulic cavity is increased by increasing water supply in the high-pressure water pipe II, so that the pressure P is in an allowable range.
6. The method of constructing a composite pile of a steel pipe pile and a steel sheet pile according to claim 1,
the side wall of the bottom end of the steel pipe pile is provided with a plurality of transverse holes, mud liquid overflows from the transverse holes under the action of pressure, and a mud retaining wall is formed outside the steel pipe pile, so that the steel pipe pile is smoothly placed.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000136532A (en) * | 1998-10-30 | 2000-05-16 | Nippon Steel Corp | Rotary type press-in sheet pile and construction method thereof |
| JP2001348869A (en) * | 2000-06-09 | 2001-12-21 | Shimizu Corp | Method of boring steel pipe sheet pile, and double circle boring machine |
| CN208201855U (en) * | 2018-05-15 | 2018-12-07 | 安徽省路港工程有限责任公司 | A kind of steel-pipe pile high-pressure water knife device for drawing hole construction |
| CN111206567A (en) * | 2020-01-20 | 2020-05-29 | 宁波市建筑设计研究院有限公司 | Construction method of steel pipe pile in combined pile based on PC construction method |
| CN211331953U (en) * | 2019-11-26 | 2020-08-25 | 湖南杰希重工有限公司 | Internal stay formula positioning and clamping mechanism |
| CN112982407A (en) * | 2021-03-29 | 2021-06-18 | 江苏诚晖工程技术有限公司 | Auxiliary pile sinking device for prefabricated hollow pile |
| CN214384211U (en) * | 2020-12-11 | 2021-10-12 | 威海丰汇不锈钢有限公司 | Convenient connector for butt joint installation of internal-supporting stainless steel pipes |
| CN113550321A (en) * | 2021-06-28 | 2021-10-26 | 上海建工集团股份有限公司 | Prestressed PC construction method combined steel pipe pile foundation pit supporting structure and construction method thereof |
-
2021
- 2021-11-12 CN CN202111341661.7A patent/CN113944152B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000136532A (en) * | 1998-10-30 | 2000-05-16 | Nippon Steel Corp | Rotary type press-in sheet pile and construction method thereof |
| JP2001348869A (en) * | 2000-06-09 | 2001-12-21 | Shimizu Corp | Method of boring steel pipe sheet pile, and double circle boring machine |
| CN208201855U (en) * | 2018-05-15 | 2018-12-07 | 安徽省路港工程有限责任公司 | A kind of steel-pipe pile high-pressure water knife device for drawing hole construction |
| CN211331953U (en) * | 2019-11-26 | 2020-08-25 | 湖南杰希重工有限公司 | Internal stay formula positioning and clamping mechanism |
| CN111206567A (en) * | 2020-01-20 | 2020-05-29 | 宁波市建筑设计研究院有限公司 | Construction method of steel pipe pile in combined pile based on PC construction method |
| CN214384211U (en) * | 2020-12-11 | 2021-10-12 | 威海丰汇不锈钢有限公司 | Convenient connector for butt joint installation of internal-supporting stainless steel pipes |
| CN112982407A (en) * | 2021-03-29 | 2021-06-18 | 江苏诚晖工程技术有限公司 | Auxiliary pile sinking device for prefabricated hollow pile |
| CN113550321A (en) * | 2021-06-28 | 2021-10-26 | 上海建工集团股份有限公司 | Prestressed PC construction method combined steel pipe pile foundation pit supporting structure and construction method thereof |
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