Square barge crane pile sinking hammer combined pile sinking device

Abstract

The utility model discloses a square barge crane and pile sinking hammer combined pile sinking device, which belongs to the field of pile foundation construction and comprises a square barge crane and a pile forming hammer. The square barge crane comprises a square barge and a crawler crane which is installed on the square barge and used for hoisting a steel pipe pile and a pile forming hammer. The square barge is provided with a pile frame, and the bottom end of the pile frame is fixed to the square barge. The top and the bottom of the pile frame are each provided with a pair of pile embracing devices used for embracing the steel pipe pile. The pile forming hammer is detachably connected to the crawler crane in a hung mode and hoisted to the position above the pile gripper through the crawler crane to hammer the steel pipe pile encircled in the pile gripper. According to the square barge crane pile sinking hammer combined pile sinking device, an existing square barge crane is utilized, and the potential of equipment resources is fully excavated. The function of the pile driving barge is basically realized by adopting a small amount of additional installation and refitting, the high dispatching cost and the long dispatching period of the pile driving barge are avoided, and the cost and the construction period are saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of pile foundation construction, specifically is the combined pile sinking device of barge crane pile sinking hammer. BACKGROUND

[0002] High-pile wharf is one of the earliest and most widely used wharf structure forms in the construction of Chinese port wharf. High-pile wharf is suitable for soft soil foundation along the coast and rivers, and is also suitable for hard clay, silt, sandy soil and weathered rock foundation, especially in the construction of large-scale port in the open sea with deep water and large waves, pile foundation structure is one of the best forms of wharf structure. The common pile foundation forms of high-pile wharf include four forms of reinforced concrete square pile, prestressed concrete pipe pile, composite pile and steel pipe pile. Among them, steel pipe pile is more and more widely used due to its high strength, anti-splitting and easy to set up, and develops in the direction of large diameter and super long.

[0003] Common steel pipe pile sinking modes include professional piling ship sinking mode, land pushing sinking mode, lifting platform ship sinking mode and suspended hammer sinking mode. The sinking methods include hammer sinking method, vibration sinking method, water jet sinking method and static pressure sinking method, among which hammer sinking method and vibration sinking method are most commonly used.

[0004] A project has three high-pile wharfs and one ship lift wharf, and the total number of steel pipe piles reaches more than 1400, the pile diameter is 1100-1400mm, and the pile length is more than 40m. For the project, the conventional construction strategy is to dispatch professional piling ships for construction, but for some areas, the resources of piling ships are few, the relevant procedures are complicated, and the processing period is long. Restricted by these factors, the piling ships at the construction site cannot meet the time limit requirements. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a combined pile sinking device of barge crane pile sinking hammer, solve the problem of piling ship resource defects, and meet the time limit requirements of steel pipe pile bearing under the condition of piling ship resource defects.

[0006] The utility model adopts the technical scheme of: the combined pile sinking device of barge crane pile sinking hammer, including barge crane and pile hammer, the barge crane includes barge and crawler crane installed on the barge for lifting steel pipe pile and pile hammer, the barge is provided with pile rack, and the bottom end of the pile rack is fixed to the barge, a pair of pile grippers for embracing steel pipe pile is arranged on the top and bottom of the pile rack respectively, the pile hammer can be detachably connected to the crawler crane and lifted to the upper side of the pile gripper by the crawler crane to hammer the steel pipe pile embraced in the pile gripper.

[0007] Further, the pile holder comprises a left holding arm, a right holding arm and a connecting body, the left holding arm and the right holding arm are oppositely arranged, inner ends of the left holding arm and the right holding arm are hingedly connected to the connecting body, and a gap is formed between outer ends of the left holding arm and the right holding arm, and the left holding arm, the right holding arm and the connecting body surround a hollow region for accommodating the steel pipe pile.

[0008] Further, a left hydraulic jack is arranged between the left holding arm and the connecting body, the left holding arm is driven to rotate around the hinge joint between the left holding arm and the connecting body through the left hydraulic jack, and a right hydraulic jack is arranged between the right holding arm and the connecting body, the right holding arm is driven to rotate around the hinge joint between the right holding arm and the connecting body through the right hydraulic jack.

[0009] Further, three guide wheels are arranged on inner walls of the hollow region of the pile holder, and axes of the guide wheels are perpendicular to an axis of the pile holder.

[0010] Further, the gap end of the left holding arm is an insertion part, an outer side of the insertion part is provided with a left connecting lug, the gap end of the right holding arm is an insertion slot which is concave and penetrates through the pile holder in a radial direction, and an outer side of the insertion slot is provided with a right connecting lug, when the pile holder embraces the steel pipe pile, the insertion part is inserted into the insertion slot, the right connecting lug and the left connecting lug are vertically aligned and connected through bolts.

[0011] Further, a walking platform and a protective fence for walking are arranged on outer sides of the left holding arm and the right holding arm respectively.

[0012] Further, the pile frame is arranged along the barge edge.

[0013] Further, the pile forming hammer comprises a vibration hammer and a hydraulic hammer, and the vibration hammer and the hydraulic hammer are detachably hung on the crawler crane.

[0014] The utility model has the advantages that: the utility model discloses a barge crane pile sinking hammer combined pile sinking device, uses the barge crane as a water construction platform and hoisting equipment, adds the pile frame and the pile holder on the barge edge, configures the pile forming hammer, realizes the hoisting, transportation and pile sinking of the steel pipe pile, fully satisfies the requirements of safety, quality, construction period and the like, when the construction task is not full, the barge crane can also undertake other marine hoisting operations, improves the equipment utilization rate.

[0015] The pile frame and the pile holder added on the barge crane fully consider the limiting and fixing effect and the vertical guiding effect of the steel pipe pile, and the frame body and the pile holder are designed to be ingenious and reasonable.

[0016] The utility model adopts the combination of vibration hammer and hydraulic hammer, the vibration hammer is used for sinking pile in upper soft stratum, the hydraulic hammer is used for sinking pile in lower dense stratum, and the combination of the two improves the pile sinking efficiency and construction precision. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the description of the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Figure 1 It is the schematic view of the combined pile sinking device of the square barge crane pile sinking hammer disclosed by the utility model;

[0019] Figure 2 It is the schematic view of the pile holder.

[0020] In the drawing, square barge 1, crawler crane 2, pile frame 3, pile holder 4, left holding arm 41, right holding arm 42, connecting body 43, left hydraulic jack 44, right hydraulic jack 45, guide wheel 46, left connecting lug 47, right connecting lug 48, walking platform 5, protective fence 6, pile forming hammer 7, steel pipe pile 8. DETAILED DESCRIPTION

[0021] The utility model will be further described as follows in combination with the drawings and embodiments:

[0022] The utility model will be further described as follows in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model, and the technical features in the utility model embodiment and the embodiment can be combined mutually without conflict.

[0023] It should be understood that in the description of the utility model embodiment, the words indicating direction such as "left", "right", "upper", "lower" are only used for distinguishing the purpose of description, and cannot be understood as indicating or implying relative importance, and also cannot be understood as indicating or implying order.

[0024] The utility model discloses the combined pile sinking device of square barge crane pile sinking hammer, as Figure 1 As shown, it includes square barge crane and pile forming hammer 7;The square barge crane includes square barge 1 and crawler crane 2 for hoisting steel pipe pile 8 and pile forming hammer 7 installed to square barge 1;The square barge 1 is provided with pile frame 3, and the bottom end of pile frame 3 is fixed to square barge 1;A pair of pile holder 4 for embracing steel pipe pile 8 is arranged at the top and bottom of pile frame 3 respectively;

[0025] The pile hammer 7 is detachably hung on the crawler crane 2 and hoisted by the crawler crane 2 to the steel pipe pile 8 which is embraced in the pile holder 4.

[0026] The square barge crane is fixed on the square barge 1, and the square barge 1 is used as a water construction platform. The pile holder 4 is installed on the traditional square barge 1 and limits the movement of the steel pipe pile 8 in the axial direction of the pile holder 4. The pile hammer 7 is used to apply force to the steel pipe pile 8 to make it sink. The crawler crane 2 is used as a lifting device to hoist the steel pipe pile 8 into the pile holder 4, and to hoist the pile hammer 7 to the top of the steel pipe pile 8 to sink the pile after the pile holder 4 is in place.

[0027] As shown in Figure 2 The pile holder 4 includes a left arm 41, a right arm 42 and a connecting body 43. The left arm 41 and the right arm 42 are oppositely arranged, and the inner ends of the left arm 41 and the right arm 42 are hingedly connected to the connecting body 43. The outer ends of the left arm 41 and the right arm 42 form a gap, and the left arm 41, the right arm 42 and the connecting body 43 form a hollow area for accommodating the steel pipe pile 8. The pile holder 4 is opened through the gap of the left arm 41 and the right arm 42 to facilitate the placement of the steel pipe pile 8 in the hollow area, and the steel pipe pile 8 is tightly embraced by closing the gap of the left arm 41 and the right arm 42. The structure is simple and the operation is easy to control.

[0028] The left hydraulic jack 44 is installed between the left arm 41 and the connecting body 43, and the left arm 41 is driven to rotate around the hinge joint between the left arm 41 and the connecting body 43 by the left hydraulic jack 44. The right hydraulic jack 45 is installed between the right arm 42 and the connecting body 43, and the right arm 42 is driven to rotate around the hinge joint between the right arm 42 and the connecting body 43 by the right hydraulic jack 45.

[0029] In order to protect the anticorrosive coating of the steel pipe pile 8, at least three guide wheels 46 are installed around the inner wall of the hollow area of the pile holder 4, and the axis of the guide wheel 46 is perpendicular to the axis of the pile holder 4. This arrangement converts the direct contact between the pile holder 4 and the steel pipe pile 8 into the contact between the steel pipe pile 8 and the guide wheel 46, reducing the friction on the steel pipe pile 8 and ensuring smooth sinking of the steel pipe pile 8 while protecting the anticorrosive coating of the steel pipe pile 8.

[0030] In order to ensure that the pile grab 4 reliably embraces the steel pipe pile 8, preferably, the left arm 41 is provided with a plug-in part at the mouth end, and the outer side of the plug-in part is provided with a left connecting lug 47; the right arm 42 is provided with a concave plug-in slot at the mouth end, and the plug-in slot is radially through the pile grab 4, and the outer side of the plug-in slot is provided with a right connecting lug 48; when the pile grab 4 embraces the steel pipe pile 8, the plug-in part is inserted into the plug-in slot, the right connecting lug 48 is vertically aligned with the left connecting lug 47, and the right connecting lug 48 is connected with the left connecting lug 47 through bolts. When the mouth embraces the steel pipe pile 8, the right connecting lug 48 and the left connecting lug 47 are connected through connecting bolts, so that the right arm 42 and the left arm 41 are fixed at the mouth end, and the risk of opening of the mouth during piling is reduced.

[0031] In order to facilitate the staff to approach the steel pipe pile 8 for relevant measurement and test operation, a walking platform 5 and a protective fence 6 are arranged on the outer side of the left arm 41 and the outer side of the right arm 42 respectively for walking.

[0032] In order to reasonably arrange, the pile frame 3 is arranged along the edge of the barge 1. The pile frame 3 can be welded or bolted at a proper position of the edge of the barge 1 and should have sufficient strength, rigidity and stability to ensure the limiting effect on the steel pipe pile 8. The pile frame 3 should also have a certain height to ensure the perpendicularity of the steel pipe pile 8, for example, the pile frame 3 is arranged to be 6m high, 5m high or 7m high or the like.

[0033] Preferably, the pile hammer 7 comprises a vibration hammer and a hydraulic hammer; the vibration hammer and the hydraulic hammer are detachably hung on the crawler crane 2. In the soft upper geology, the vibration hammer can make the steel pipe pile 8 quickly pass through the soft stratum, so that the pile body is stably inserted into the soft stratum, and in addition, the clamping effect of the vibration hammer on the steel pipe pile in combination with the pulling force of the crane can also control the perpendicularity of the steel pipe pile 8 to a certain extent. After the pile body is self-stable in the soft stratum, the crane lowers the vibration hammer and replaces the hydraulic hammer to start heavy hammering until the end of the steel pipe pile 8 reaches the design elevation or reaches the stop hammer standard, and the pile sinking is completed. Through the combination of the vibration hammer and the hydraulic hammer, the pile sinking efficiency and construction accuracy are improved.

[0034] The barge crane pile sinking hammer combined pile sinking device disclosed by the utility model is suitable for sinking various pile foundations such as steel pipe piles or precast concrete piles of high-pile wharfs and other hydraulic structures in hard clay, silt, sand and weathered rock geological conditions. The specific pile sinking process is as follows: construction preparation → barge and pile frame positioning → vibration hammer vibration sinking of steel pipe pile → hydraulic hammer continues to hammer the steel pipe pile → pile end reaches the design elevation or stop hammer standard → limiting is removed → a steel pipe pile is sunk.

[0035] During the construction preparation process, the barge crane, the pile frame 3, the pile grab 4, the vibration hammer and the hydraulic hammer need to be prepared.

[0036] The operation process of the barge 1 and the pile frame 3 is as follows: the tug pushes the barge 1 to the pile sinking area, the barge 1 is positioned by eight cross anchors, the tension of each anchor cable is adjusted by the winch to slowly position the barge and the pile frame, two surveyors on the shore use the resection method to measure and confirm the position by using the theodolite or total station, and the position of the barge is locked after the accuracy requirement is met.

[0037] The operation process of the vibratory hammer pile sinking is as follows: after the barge 1 is positioned, the crawler crane 2 hoists the steel pipe pile 8 to the vertical state, and then slowly sends it into the mouth of the pile grabber 4 and lowers it to the seabed elevation, the survey personnel confirm the plan position and verticality of the steel pipe pile 8, the crawler crane 2 continues to lower, and the steel pipe pile 8 is inserted into the seabed to a certain depth by using its own weight. The pile grabber 4 starts the hydraulic system to wrap around the steel pipe pile 8. Then, the crawler crane 2 hooks off the steel pipe pile 8, and then hoists the vibratory hammer to directly above the steel pipe pile 8, so that the two hammer clamps with a previously adjusted spacing are aligned with the wall of the steel pipe pile 8, personnel operate the vibratory hammer control system to tightly clamp the steel pipe pile 8, start the vibratory hammer, start small amplitude and low frequency vibratory sinking of the steel pipe pile 8, and gradually increase the frequency and amplitude as the sinking depth of the steel pipe pile 8 increases, until the maximum sinking capacity of the vibratory hammer is reached, at this time the steel pipe pile 8 has basically penetrated the soft coating and is inserted to a depth of about 5-10 meters, and self-stability can be achieved. The survey personnel should continuously monitor the verticality and position deviation of the steel pipe pile 8 during the sinking process, and small deviations can be adjusted by the tension of the crawler crane 2 during the sinking process. Large deviations need to be operated in reverse to pull out the steel pipe pile 8 and re-sink it.

[0038] The operation process of the hydraulic hammer continues to hammer the steel pipe pile is as follows: after the vibratory hammer pile sinking is completed, the crawler crane 2 places the vibratory hammer on the deck of the barge 1, hoists the hydraulic hammer to put the hammer barrel on the steel pipe pile 8, and starts the hydraulic hammer according to the pre-set impact energy to hammer the steel pipe pile 8. In the initial stage, small energy and low stroke hammering is used, and as the penetration depth increases, the hammering energy and stroke are increased until the penetration depth standard for stopping the hammer is met. During the process, the construction personnel continuously record the hammering energy, number of hammerings, and penetration depth to form a complete construction record table for final analysis of whether the requirements are met and whether re-hammering is needed.

[0039] After the pile sinking is completed, the limit is released, and the barge is moved to the next pile position to start a new pile sinking cycle.

[0040] The above process and method avoid the cross-regional or even cross-country deployment of large professional pile driving ships, saving the deployment cost and period. In addition, the professional pile driving ship has a large ship type and a large number of crew members, and the construction cost is high. The method fully utilizes the existing equipment resources on site to improve the utilization rate of equipment. The pile frame is designed ingeniously and reasonably, two types of hammers are selected according to the geological conditions, and the construction efficiency is improved. The method is novel and unique. The method has been successfully applied to a certain project, and the following is described by taking bid section 1 and bid section 7 of the project as examples.

[0041] The No. 1 section of wharf has 230 steel pipe piles, 110 of which are completed by using the method, 3-4 steel pipe piles can be sunk per day, the efficiency is basically equivalent to that of a piling ship, and 19000 yuan is saved for each pile compared with a traditional piling ship. 110*19000=2090000 yuan, and a total of 2090000 yuan is saved.

[0042] The No. 7 section of wharf has 220 steel pipe piles, 120 of which are completed by using the method, 3-4 steel pipe piles can be sunk per day, the efficiency is basically equivalent to that of a piling ship, and 19000 yuan is saved for each pile compared with a traditional piling ship. 120*19000=2280000 yuan, and a total of 2280000 yuan is saved.

[0043] In addition, the method also avoids the deployment of large piling ships, saves the deployment cost, and has significant benefits in terms of construction period, safety and quality.

[0044] The above-described embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent substitutions or transformations made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A combined pile driving device using a barge crane and pile hammer, characterized in that: The equipment includes a barge crane and a pile hammer (7); the barge crane includes a barge (1) and a fixed crawler crane (2) installed on the barge (1) for lifting steel pipe piles (8) and pile hammer (7); the barge (1) is equipped with a pile frame (3), the bottom end of which is fixed to the barge (1); a pile gripper (4) for circling the steel pipe pile (8) is provided at the top and bottom of the pile frame (3); The pile hammer (7) can be detachably attached to the fixed crawler crane (2) and hoisted by the fixed crawler crane (2) to the pile gripper (4) to hammer the steel pipe pile (8) encircling the pile gripper (4).

2. The combined pile driving device of barge crane and pile driving hammer as described in claim 1, characterized in that: The pile gripper (4) includes a left gripping arm (41), a right gripping arm (42), and a connecting body (43). The left gripping arm (41) and the right gripping arm (42) are arranged opposite to each other, and their inner ends are hinged to the connecting body (43). The outer ends form a gap. The left gripping arm (41), the right gripping arm (42), and the connecting body (43) surround and form a hollow area for the steel pipe pile (8) to pass through.

3. The combined pile driving device of barge crane and pile driving hammer as described in claim 2, characterized in that: A left hydraulic jack (44) is installed between the left arm (41) and the connecting body (43), and the left arm (41) is driven to rotate around the hinge joint between it and the connecting body (43) via the left hydraulic jack (44); a right hydraulic jack (45) is installed between the right arm (42) and the connecting body (43), and the right arm (42) is driven to rotate around the hinge joint between it and the connecting body (43) via the right hydraulic jack (45).

4. The combined pile driving device of barge crane and pile driving hammer as described in claim 2 or 3, characterized in that: The hollow area of ​​the pile gripper (4) is equipped with three guide wheels (46), and the axis of the guide wheels (46) is perpendicular to the axis of the pile gripper (4).

5. The combined pile driving device of barge crane and pile driving hammer as described in claim 4, characterized in that: The left arm (41) has a plug-in end at the mouth, and a left connecting ear (47) is provided on the outside of the plug-in end; the right arm (42) has a recessed slot that runs radially through the pile driver (4), and a right connecting ear (48) is provided on the outside of the slot. When the pile gripper (4) hugs the steel pipe pile (8), the plug part is inserted into the slot, and the right connecting ear (48) and the left connecting ear (47) are aligned vertically and connected by bolts.

6. The combined pile driving device of barge crane and pile driving hammer as described in claim 1, 2, or 3, characterized in that: A walking platform (5) and a protective fence (6) are respectively provided on the outside of the left arm (41) and the right arm (42).

7. The combined pile driving device of barge crane and pile driving hammer as described in claim 1, 2, or 3, characterized in that: The pile frame (3) is set along the edge of the barge (1).

8. The combined pile driving device of barge crane and pile driving hammer as described in claim 1, 2, or 3, characterized in that: The pile-forming hammer (7) includes a vibratory hammer and a hydraulic hammer; the vibratory hammer and the hydraulic hammer are detachably attached to the fixed crawler crane (2).

Images