Water flushing method pile sinking equipment for channel revetment engineering and water flushing method pile sinking method thereof

Abstract

The equipment comprises a water restraining groove and a pipeline system, the water restraining groove is a box body with openings formed in the two ends, and a grating net is fixed to the top of the water restraining groove; the pipeline system comprises a first shunting pipeline, a main water pipe group and a second shunting pipeline; the main water pipe set comprises N main water pipes vertically fixed to the top of the water bundling groove. The first shunting pipeline comprises N elbows, one ends of the elbows are connected with top end ports of the N main water pipes, and the other ends of the elbows are connected with N parallel ports of the one-to-N adapter; the second flow dividing pipeline comprises N flow dividing pipes arranged in the water bundling tank at intervals, the water inlet ends of the flow dividing pipes are connected with bottom end openings of the N main water pipes respectively, the second flow dividing pipeline comprises M vertical flow dividing branch pipes arranged side by side, and the water outlet end of each flow dividing branch pipe is provided with a water jetting spray head; the equipment and the method solve the problems that in the prior art, the requirement of equipment for a working face is large, and surrounding old revetments and revetment piles are prone to being damaged, and are high in adaptability, low in cost and high in construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of waterway revetment engineering, and in particular to a water jetting pile sinking device and a water jetting pile sinking method for waterway revetment engineering. Background Art

[0002] With the rapid development of economy and the increasing frequency of international trade, waterway transportation plays an increasingly important role in the national economy, and the demand for upgrading and reconstruction of waterways is getting higher and higher. The main purpose of waterway bank protection project is to protect the stability of waterway bank slope, prevent bank slope collapse and soil erosion, and provide safe navigation conditions for ships.

[0003] In the channel revetment project, the revetment pile foundation is an indispensable construction structure in the revetment construction. In the construction of revetment piles, traditional pile sinking construction mostly adopts two types of pile sinking: vibration pile sinking and hammer pile sinking. However, both of these methods require large mechanical operation equipment and a large range of working surfaces. At the same time, the revetment construction environment is mostly soft soil, which leads to the construction process easily causing vibration damage to the old revetment and surrounding adjacent structures. Not only is the noise loud, but the verticality and elevation are also difficult to guarantee. The pile head and pile body are easily damaged during the piling process, and the apparent quality is difficult to guarantee.

[0004] Based on this, it is necessary to design a pile driving equipment and a supporting pile driving construction method suitable for the waterway revetment engineering environment in response to the problems existing in the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a water jet pile sinking device for channel bank protection engineering to solve the above technical problems.

[0006] Another object of the present invention is to provide a water jet pile driving method implemented by using the water jet pile driving equipment for waterway revetment engineering.

[0007] To this end, the technical solution of the present invention is as follows:

[0008] A water jet pile sinking device for a channel bank protection project comprises a water bundle trough and a pipeline system; wherein the water bundle trough comprises a box body with openings at the top and the bottom, and a grille is fixed at the top opening of the box body; the pipeline system comprises a first diversion pipeline, a main water pipe group and a second diversion pipeline which are arranged in sequence from top to bottom; the main water pipe group comprises N vertically arranged main water pipes which are arranged at equal intervals along the length direction of the water bundle trough and fixed centrally on the top of the water bundle trough; the first diversion pipeline comprises N 90° elbows, one end of which is respectively connected to the top ports of the N main water pipes, and the other end of which is respectively connected to the N parallel ports of a N-to-N conversion joint; the second diversion pipeline comprises N diversion pipes arranged at intervals in the water bundle trough, and the water inlet ends of which are respectively connected to the bottom ports of the N main water pipes; each diversion pipe comprises M vertically and parallelly arranged diversion branch pipes, and the water outlet end of each diversion branch pipe is connected to a water jet nozzle, and the water eye of the water jet nozzle is arranged vertically downward.

[0009] Furthermore, the radial cross-section of the water bundle tank body may be square, circular or polygonal.

[0010] Furthermore, the circumferential bottom edge of the bottom side of the water-binding trough is processed into a serrated edge.

[0011] Furthermore, the length and width of the water-binding trough are respectively 4 cm to 6 cm smaller than the length and width of the bank protection pile.

[0012] Furthermore, in the main water pipe group, the number N of main water pipes is adapted to the box length of the water bundle trough, and the interval between two adjacent main water pipes is 1m to 1.5m, so that the main water pipes are evenly arranged on the water bundle trough to achieve even arrangement of diversion pipes in the water bundle trough, thereby ensuring that holes and grooves are formed by flushing with water.

[0013] Furthermore, in the second flow diversion pipeline, the number M of diversion branches on the diversion pipe is adapted to the length of the water bundle tank, and the M diversion branches are arranged at equal intervals and evenly distributed in the width direction of the water bundle tank, so that N groups of M diversion branches are evenly distributed in the water bundle tank.

[0014] Furthermore, the main water pipe group also includes a plurality of limit clamps spaced apart from top to bottom; the limit clamp is an N-linked clamp structure formed by N circular clamps connected in sequence, and has two split connectors.

[0015] Furthermore, the pipeline system also includes a pumping pipeline; the pumping pipeline includes a high-pressure hose and a high-pressure pump; the high-pressure pump is connected to the remaining port of the one-to-N conversion joint through the high-pressure hose.

[0016] Furthermore, the water jet pile driving equipment for the channel bank protection project also includes a supporting mechanism; the supporting mechanism includes two reinforcing rods, which are symmetrically arranged on both sides of the main water pipe group and fixed to the grille net through the bottom ends; the top cover is horizontally fixed to the top ends of the two reinforcing rods, and three 90° elbows are built into the top cover, and one end ports of the three are respectively inserted and fixed in the three side through holes of the top cover, and the other end ports of the three are respectively inserted and fixed in the three lower through holes of the top cover.

[0017] Furthermore, an inwardly recessed lifting ear is centrally arranged on the top surface of the top cover.

[0018] A water jet pile sinking method implemented by using the water jet pile sinking equipment for waterway revetment engineering, the steps are as follows:

[0019] S1. Measure and place pile positions;

[0020] S2. Lift the water jet pile sinking equipment to the position above the designed pile position, and align the water beam trough with the designed pile position;

[0021] S3. Use high-pressure water to punch holes, and slowly lower the water-jet pile sinking equipment vertically during the process of flushing and grooving until the bottom elevation of the water-jet pile sinking equipment is 30cm to 50cm away from the designed pile bottom elevation, then stop flushing;

[0022] S4, lifting the water jet pile sinking equipment and lifting it out of the pile groove;

[0023] S5. Vertically sink the bank protection piles into the pile grooves;

[0024] S6. The pile top is statically pressed to the design elevation.

[0025] Compared with the existing technology, the water jet pile driving equipment for waterway revetment engineering solves the problems in the existing technology that the mechanical equipment for revetment pile driving construction is large in size, has a large demand for working surface, and the surrounding old revetments and prefabricated revetment piles are easily damaged. In terms of equipment structure design, the water beam trough can meet the construction of prefabricated revetment piles of different sizes, pile shapes, and lengths by changing the size and shape, as well as the number and length of pipelines in the pipeline system. The water jet pile driving equipment and its pile driving operation method have no damage to the appearance of the prefabricated revetment piles, and the construction process is free of vibration and noise. It relies on high-pressure water to flush the trough first and then sink the revetment piles. Not only is the construction method simple and easy to operate, but it also has the advantages of saving construction time and cost and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the water jet pile sinking equipment for waterway bank protection engineering of the present invention;

[0027] Figure 2 It is a schematic structural diagram of the water-binding tank of the water jetting pile sinking equipment for waterway bank protection engineering of the present invention;

[0028] Figure 3 It is a structural schematic diagram of a second diversion pipeline arranged in a water beam tank in the water jetting pile sinking equipment for a waterway bank protection project of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the top cover and the first diversion pipeline of the water jet pile sinking equipment for waterway bank protection engineering of the present invention;

[0030] Figure 5 It is a schematic structural diagram of the top cover of the water jet pile sinking equipment for waterway bank protection engineering of the present invention;

[0031] Figure 6 It is a side view of the top cover and the first diversion pipeline of the water jet pile sinking equipment for waterway bank protection engineering of the present invention. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention in any way.

[0033] Example 1

[0034] See also Figure 1 The water jet pile sinking equipment for the channel bank protection project includes a water beam tank 1 and a pipeline system.

[0035] See also Figure 2 The water-binding trough 1 includes four side panels 101, which are vertically arranged and vertically connected and fixed in sequence to form a cubic box to support the outer trough wall in practical applications; a grille 102 is horizontally fixed on the top of the box to connect the inner cavity of the water-binding trough 1 with the space above it to discharge muddy water or mud blocks upward; specifically, the size of the water-binding trough 1 is designed as follows: the length of the box is 5 cm smaller than the size of the revetment pile, and the width of the box is 5 cm smaller than the size of the revetment pile; by designing the size of the water-binding trough 1 to be smaller than the size of the revetment pile, the size of the water-flushed trough based on the water-binding trough is slightly smaller than the size of the revetment pile, thereby ensuring that after the revetment pile is subsequently lowered, the friction resistance around the pile meets the requirements.

[0036] As a preferred technical solution in this embodiment, the bottom side edge of each side plate 101 is processed into a serrated bottom edge 103, so that the water-binding trough 1 is easier to be gradually inserted downward into the soil layer in a vertical direction.

[0037] The pipeline system comprises a pumping pipeline, a first diversion pipeline, a main water pipe group and a second diversion pipeline which are arranged in sequence from top to bottom.

[0038] The main water pipe group includes three main water pipes 3, which are arranged vertically and arranged at equal intervals along the length direction of the water bundle trough 1 and centrally on the top of the water bundle trough 1; connecting ribs are evenly distributed and fixed on the outer wall of the bottom end of each main water pipe 3 along the circumferential direction, so that the bottom ends of the three main water pipes 3 are fixed on the bars of the grille net 102 with their pipe openings facing the grid holes on the grille net 102.

[0039] As a preferred technical solution of this embodiment, the main water pipe group also includes six limit clamps 7 arranged at intervals from top to bottom; specifically, the limit clamp 7 is a triple clamp structure composed of three circular clamps connected in sequence, and split into two connecting bodies; in actual application, the limit clamp 7 connects the three main water pipes 3 arranged at intervals into a whole by matching its three arc-shaped bodies on both sides of the three main water pipes 3, and connecting and fixing the three main water pipes 3 with four fastening bolts 701M branch pipes on both sides of each arc-shaped body. The six limit clamps 7 can connect and fix the three main water pipes 3 as one, while also maintaining the interval distance between the three main water pipes 3. In this embodiment, the three main water pipes 3 are arranged at equal intervals with an interval of 1.5m.

[0040] See also Figure 4 and Figure 6 The first diversion pipeline includes three 90° elbows 501 and a one-to-three conversion joint 502; wherein, one end of the three 90° elbows 501 is connected to the top ports of the three main water pipes 3 one by one and forms a connection, and the other ends of the three are connected to the three parallel ports of the one-to-three conversion joint 502 and forms a connection. As a preferred technical solution of this embodiment, one end port of the 90° elbow 501 is welded and fixedly connected to the top port of the main water pipe 3 to maintain the stability of the connection between the two; the other end port of the 90° elbow 501 is threadedly connected and fixed to the three parallel ports of the one-to-three conversion joint 502 through a quick connector 6 for quick disassembly and assembly.

[0041] See also Figure 1 The pumping pipeline includes a high-pressure hose 11 and a high-pressure water pump 12; the high-pressure water pump 12 is set at the water source position of the construction site, and its model is matched according to the head requirement; one end of the high-pressure hose 11 is connected to the fourth port of the one-to-three conversion joint 502 through a quick connector 6 and forms a connection, and the other end is connected to the water outlet of the high-pressure water pump 12 through a quick connector 6 and forms a connection. In actual application, the hose 10 uses a 10-inch hose, and its length is configured according to the distance from the on-site construction water source.

[0042] See also Figure 2 and Figure 3The second diversion pipeline includes three diversion pipes 4 and six water jet nozzles 2; the three diversion pipes 4 are arranged at intervals in the water bundle trough 1, and correspond to the three main water pipes 3 one by one respectively; the diversion pipe 4 adopts a one-to-two diversion pipe, and is arranged along the width direction of the water bundle trough 1; the water inlet end of the diversion pipe 4 is threadedly connected and fixed to the bottom end port of the main water pipe 3 to form a connection, and the water outlet ends of the two diversion pipes arranged in parallel are threadedly fixed to the two water jet nozzles 2 respectively, and the length of the diversion pipe is adapted to the height of the water bundle trough 1, and is preferably slightly smaller than the height of the water bundle trough 1.

[0043] In this embodiment, the diverter pipe 4 is composed of a one-to-two conversion joint and two water jetting pipes, one end of the two water jetting pipes is fixedly connected to the two parallel ports of the one-to-two conversion joint, and the other end is threadedly connected to the water jetting nozzle 2; the water jetting head 2 has a conical structure, and the diameter of its bottom water outlet is 1 cm; in order to achieve uniform water flushing to form holes and then grooves, the distance between the two water jetting pipes on each diverter pipe 4 and the adjacent side groove walls of the water beam groove 1, as well as the distance between the two water jetting pipes are set to 20 cm.

[0044] See also Figure 1 and Figure 2 The water jet pile sinking equipment for the channel bank protection project also includes a supporting mechanism; specifically, the supporting mechanism includes a top cover 8 and two reinforcing rods 10.

[0045] Two reinforcing rods 10 are symmetrically arranged on both sides of the main water pipe group, and their bottom ends are fixed on the grid net 102 of the water bundle trough 1; in order to increase the connection strength between the reinforcing rod 10 and the grid net 102, reinforcing ribs 1001 are preferably connected and fixed between the side wall of the bottom end of the reinforcing rod 10 and the grid net 102. In this embodiment, the reinforcing rod 10 is made of No. 10 I-beam.

[0046] The top cover 8 is horizontally fixed on the top end surfaces of the two reinforcing rods 10, and is specifically a cubic cover body; three side through holes 801 are spaced apart on the side wall of the cover body, and three lower through holes 802 are spaced apart on the bottom surface, so that three 90° elbows 501 can be built into the top cover 8, and one end port of the three is respectively inserted and fixed in the three side through holes 801 of the top cover 8, and the other end ports of the three are respectively inserted and fixed in the three lower through holes 802 of the top cover 8, so as to facilitate the 90° elbows The two ends of 501 are respectively connected to the main water pipe 3 and an N-type conversion joint 502; as a preferred technical solution of this embodiment, a plurality of reinforcing ribs are evenly distributed along the circumferential direction on the outer wall of the top end of each main water pipe 3 and the bottom surface of the top cover 8 to enhance the connection strength between the main water pipe 3 and the top cover 8; an inward-recessed lifting lug 803 is centrally arranged on the top surface of the top cover 8, so as to lift the entire pile driving equipment by passing a steel wire rope on the inward-recessed lifting lug 803 in actual application.

[0047] The water jet pile driving equipment for the channel bank protection project is made of steel structure as a whole, and its length is longer than the length of the bank protection piles. It is preferred that the top of the equipment is at least 1m above the water surface to ensure the smooth completion of the pile driving operation.

[0048] Example 2

[0049] A water jet pile sinking method implemented by the water jet pile sinking equipment for waterway bank protection engineering of Example 1, wherein the specific operation steps are as follows:

[0050] S1. Clear the surface and measure the pile position: Before construction, weeds, garbage, rocks and other surface debris in the pile sinking area should be cleared, and then the pile position and size of the bank protection pile should be accurately marked on the ground according to the design drawings;

[0051] S2, lifting the water-jet pile sinking equipment: connecting the lifting equipment to the water-jet pile sinking equipment of Example 1, lifting it above the designed pile position, and aligning the water beam groove 1 with the designed pile position;

[0052] S3, high-pressure water flushing: turn on the high-pressure water pump 12, and adjust the water flushing pressure according to the construction soil, so that the six water jet nozzles 2 at the bottom of the three diversion pipes 4 flush water to the formation in a vertical downward manner, and in the process of flushing and grooving, continue to slowly lower the water-jetting pile sinking equipment and keep the verticality of the equipment until the bottom elevation of the water-jetting pile sinking equipment is 30cm to 50cm away from the designed pile bottom elevation, and stop flushing;

[0053] S4, lifting the water jet pile sinking equipment and lifting it out of the pile groove;

[0054] S5. Sinking revetment piles: The revetment piles are hoisted by a crane. During the hoisting, the revetment piles are ensured to be vertical and not tilted. During the lowering process, the verticality and plane position of the revetment piles are continuously observed so that deviations can be corrected manually or mechanically in time. Since 30 cm to 50 cm are reserved when the water is flushed into the groove in step S3, the top of the revetment pile will be slightly higher than the design elevation after the lowering is completed.

[0055] S6. Static pressure on the pile top to the design elevation: After the revetment piles are sunk, since the pile top is slightly higher than the design elevation, the pile top is continuously statically pressed to the design elevation using machinery.

[0056] Through the actual bank protection construction, it was found that the water jet pile driving equipment and its supporting water jet pile driving method of the waterway bank protection project can be effectively applied to the water jet method of opening pile holes with a depth of 10m to 15m.

Claims

1. A water jet pile sinking equipment for channel bank protection engineering, characterized in that: The invention comprises a water bundle trough (1) and a pipeline system; wherein the water bundle trough (1) comprises a box body with openings at the top and the bottom, and a grille (102) is fixed at the top opening of the box body; the pipeline system comprises a first diversion pipeline, a main water pipe group and a second diversion pipeline arranged in sequence from top to bottom; the main water pipe group comprises N vertically arranged main water pipes (3), which are arranged at equal intervals along the length direction of the water bundle trough (1) and fixed in the center on the top of the water bundle trough (1); the first diversion pipeline comprises N A 90° elbow (501), one end of which is respectively connected to the top end ports of N main water pipes (3), and the other end of which is respectively connected to N parallel ports of a branch-N conversion joint (502); the second branch pipeline comprises N branch pipes (4) arranged at intervals in the water bundle tank (1), and the water inlet ends of which are respectively connected to the bottom end ports of the N main water pipes (3); each branch pipe (4) comprises M branch pipes vertically and arranged in parallel, and the water outlet end of each branch pipe is connected to a water jet nozzle (2).

2. The water jet pile sinking equipment for waterway bank protection engineering according to claim 1 is characterized in that: The circumferential bottom edge of the bottom side of the box body of the water bundle trough (1) is processed into a sawtooth edge.

3. The water jet pile sinking equipment for channel bank protection engineering according to claim 1 is characterized in that: The length and width of the water-binding trough (1) are respectively smaller than the length and width of the bank protection pile by 4 cm to 6 cm.

4. The water jet pile sinking equipment for waterway bank protection engineering according to claim 1 is characterized in that: The main water pipe group also includes a plurality of limit clamps (7) arranged at intervals from top to bottom; the limit clamp (7) is an N-linked clamp structure composed of N circular clamps connected in sequence, and has two split connectors.

5. The water jet pile sinking equipment for waterway bank protection engineering according to claim 1 is characterized in that: The pipeline system also includes a pumping pipeline; the pumping pipeline includes a high-pressure hose (11) and a high-pressure pump (12); the high-pressure pump (12) is connected to the remaining port of a one-to-N conversion joint (502) through the high-pressure hose (11).

6. The water jet pile sinking equipment for waterway bank protection engineering according to claim 1 is characterized in that: The invention also comprises a supporting mechanism; the supporting mechanism comprises two reinforcing rods (10), which are symmetrically arranged on both sides of the main water pipe group and fixed on the grid net (102) through the bottom ends; the top cover (8) is horizontally fixed on the top ends of the two reinforcing rods (10), three 90° elbows (501) are built in the top cover (8), and one end ports of the three are respectively inserted and fixed in the three side through holes of the top cover (8), and the other end ports of the three are respectively inserted and fixed in the three lower through holes of the top cover (8).

7. The water jet pile sinking equipment for channel bank protection engineering according to claim 6 is characterized in that: An inwardly recessed lifting ear (803) is centrally arranged on the top surface of the top cover (8).

8. A method for water jetting pile sinking using the water jetting pile sinking equipment for waterway bank protection engineering according to any one of claims 1 to 7, characterized in that: Here are the steps: S1. Measure and place pile positions; S2. Lift the water jet pile sinking equipment to the position above the designed pile position, and align the water beam trough with the designed pile position; S3. Use high-pressure water to punch holes, and slowly lower the water-jet pile sinking equipment vertically during the process of flushing and grooving until the bottom elevation of the water-jet pile sinking equipment is 30cm to 50cm away from the designed pile bottom elevation, then stop flushing; S4, lifting the water jet pile sinking equipment and lifting it out of the pile groove; S5. Vertically sink the bank protection piles into the pile grooves; S6. The pile top is statically pressed to the design elevation.

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