Pile sinking construction method for multi-pipe-diameter and multi-row-pitch wharf piles

Abstract

The embodiment of the invention provides a pile sinking construction method for multi-pipe-diameter and multi-row-pitch wharf piles. The method comprises the steps that hydraulic hammer replacement driving needed by a pre-driven pile is determined according to a construction drawing, and original hydraulic hammer replacement driving is correspondingly adjusted; coarse positioning is conducted on the pile driving barge, and point entering work of the pile driving barge is completed; determining a mooring point of the pile transporting ship, and completing the point entering work of the pile transporting ship; the pre-driven piles are bundled and lifted through a lifting hook of the pile driving barge; an anchor cable of the pile driving barge is adjusted to move the barge, a precise positioning system arranged on the pile driving barge is used for positioning, the center of a pile gripper of the pile frame coincides with the center of a pile to be driven, and precise positioning work is completed; a lifting hook of the pile driving barge is adjusted, and the pile driving work of the to-be-driven pile is completed; sleeving the pile tip of the pre-driven pile with a hydraulic hammer to finish the work of sleeving and pressing the hammer, so that the pre-driven pile sinks stably under the dead weight; and hammering the pre-driven pile to finish the pile sinking work. According to the embodiment, ship machine equipment resources can be saved, and the construction efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of wharf pile sinking construction, and in particular to a method for sinking wharf piles with multiple diameters and multiple rows. Background Art

[0002] Hammer pile driving is a method of pile driving that utilizes the instantaneous impact mechanical energy of the pile hammer when it falls to overcome the resistance of the soil to the pile, destroy its static equilibrium state, cause the pile body to sink, and reach a new static pressure equilibrium state. By repeatedly hammering the pile head, the pile body will continue to sink. Hammer pile driving is the most commonly used pile driving method for prefabricated piles. This method has a fast construction speed, a high degree of mechanization, a wide range of applications, and a high level of on-site civilization. Among them, the machinery and equipment used for pile driving mainly include three parts: pile hammer, pile frame, and power unit. The pile hammer options include drop hammer, single-acting steam hammer, double-acting steam hammer, diesel pile hammer, and hydraulic hammer. During the construction of pile driving on water, a special pile driving ship is used, equipped with a hydraulic hammer for hammering piles.

[0003] In traditional hydraulic engineering projects, there are many types of wharf piles and the pile diameters are not uniform. When sinking piles in traditional offshore construction, a pile-driving ship is equipped with a hydraulic hammer and a replacement hammer of one specification, which cannot adapt well to the situation of multiple pile diameters. Therefore, in order to adapt to this situation, some will be equipped with multiple pile-driving ships or one ship will be equipped with several hydraulic hammers and matching replacement hammers, which will waste ship machinery and equipment resources and reduce construction efficiency.

[0004] Therefore, the prior art has defects and needs to be improved and developed. Summary of the invention

[0005] The embodiment of the present application provides a method for constructing multi-diameter and multi-row-spacing dock pile driving, which can save ship machinery and equipment resources and improve construction efficiency.

[0006] The present application provides a method for constructing multi-diameter and multi-row-spacing pier piles, the method comprising:

[0007] Obtaining construction drawings, determining the hydraulic hammer to be used for pre-driven piles according to the construction drawings and adjusting the original hydraulic hammer accordingly;

[0008] Carry out rough positioning of the pile-driving ship, drop anchor according to the anchor layout diagram, and complete the work of the pile-driving ship entering the point;

[0009] Determine the berthing point for the pile transport ship and complete the work of bringing the pile transport ship into the berthing point;

[0010] The anchor cable of the pile-driving ship is adjusted to adjust the pile frame to above the pile-driving ship, and the pre-driven pile bundle is lifted by the hook of the pile-driving ship;

[0011] The anchor cable of the pile-driving ship is adjusted to move the ship, and the precise positioning system equipped on the pile-driving ship is used to position the center of the pile gripper of the pile frame to coincide with the center of the pre-driven pile, thereby completing the precise positioning work;

[0012] Adjusting the hook of the pile-driving ship to complete the work of driving the pre-driven piles, setting them up and burying them in the ground by their own weight;

[0013] Inserting a hydraulic hammer into the tip of the pre-driven pile to complete the hammer insertion and hammer pressing work, so that the pre-driven pile sinks stably under its own weight;

[0014] The pre-driven piles are hammered to complete the pile sinking work.

[0015] In the multi-diameter and multi-row-spacing wharf pile driving construction method described in the embodiment of the present application, the hydraulic hammer to be used for driving the pre-driven piles is determined according to the construction drawings and the original hydraulic hammer is adjusted accordingly, including:

[0016] Determine the pile diameter of the pre-driven pile and the pile spacing between the pre-driven pile and surrounding piles according to the construction drawings;

[0017] Determining the hydraulic hammer to be used for the pre-driven piles based on the pile diameter and the pile spacing;

[0018] The original hydraulic hammer for driving is adjusted to the hydraulic hammer for driving the pre-driven piles.

[0019] In the method for constructing multi-diameter and multi-row-spacing pier piles described in the embodiment of the present application, before determining the berthing point of the pile transport ship and completing the work of the pile transport ship approaching the point, the method further includes:

[0020] The angle of the pile frame is adjusted according to the slope of the pre-driven pile to meet the pile sinking requirements.

[0021] In the method for sinking multi-diameter and multi-row-spacing wharf piles described in the embodiment of the present application, the hammering of the pre-driven piles to complete the pile sinking work includes:

[0022] After the pre-driven pile sinks steadily under its own weight, a hammer is used with a small amount of energy to sink the pile. After the penetration of the pile by the hammer is stable, the hammer energy is increased to complete the pile sinking work.

[0023] In the method for constructing multi-diameter and multi-row-spacing wharf piles according to the embodiment of the present application, after hammering the pre-driven piles to complete the pile sinking work, the method further includes:

[0024] The pile sinking system on the pile driving ship generates a pile sinking record, and the ship moves to the next pile position to continue sinking piles.

[0025] In the method for constructing multi-diameter and multi-row-spacing wharf piles according to the embodiment of the present application, before the piles are moved to the next pile position to continue to be sunk, the method further includes:

[0026] Adjust the pile frame angle of the next pile to be driven and the corresponding hydraulic hammer to drive it.

[0027] In the multi-diameter and multi-row-spacing pier pile sinking construction method described in the embodiment of the present application, the piling ship is equipped with a GPS positioning system, and the rough positioning of the piling ship includes:

[0028] The piling vessel is roughly positioned by the GPS positioning system.

[0029] In the multi-diameter and multi-row-spacing wharf pile sinking construction method described in the embodiment of the present application, the number of the hooks is three.

[0030] The method for piling multi-pipe diameter and multi-row distance wharf piles provided in the embodiment of the present application first obtains the construction drawings, determines the hydraulic hammer to be used for the pre-driven piles according to the construction drawings and adjusts the original hydraulic hammer accordingly, then roughly positions the pile-driving ship, drops anchor according to the anchor position layout, completes the work of the pile-driving ship approaching the point, then determines the berthing point of the pile-transporting ship, completes the work of the pile-transporting ship approaching the point, then adjusts the anchor cable of the pile-driving ship to adjust the pile frame to the top of the pile-driving ship, and uses the hook of the pile-driving ship to move the pre-driven piles to the top of the pile-driving ship. The pile bundles to be driven are hoisted, and then the anchor cable of the pile-driving ship is adjusted to move the ship, and the precise positioning system equipped on the pile-driving ship is used to position the pile frame so that the center of the pile holder coincides with the center of the pre-driven pile to complete the precise positioning work, and then the hook of the pile-driving ship is adjusted to complete the work of driving the pre-driven piles, setting the piles, and burying the pre-driven piles by their own weight, and then the hydraulic hammer is inserted into the pile tip of the pre-driven pile to complete the work of inserting the hammer and pressing the hammer, so that the pre-driven piles sink stably by their own weight, and finally the pre-driven piles are hammered to complete the pile sinking work. Since the embodiment of the present application adopts a pile-driving ship equipped with a hydraulic hammer, and then replaces the hammer in the process of pile sinking, it can well adapt to the construction of multiple pile diameters and multiple row spacings, saving ship and machine resources and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0032] Figure 1 A schematic flow chart of a method for constructing multi-diameter and multi-row-spacing wharf pile driving provided in an embodiment of the present application.

[0033] Figure 2Another schematic diagram of the process of the multi-diameter and multi-row-spacing wharf pile driving construction method provided in an embodiment of the present application.

[0034] Figure 3 The embodiment of the present application provides that when the pile diameter is Schematic diagram of the pile driving hydraulic hammer used in the pile driving process.

[0035] Figure 4 The embodiment of the present application provides that when the pile diameter is Schematic diagram of the pile driving hydraulic hammer used in the pile driving process.

[0036] Figure 5 The embodiment of the present application provides that when the pile diameter is Schematic diagram of the pile driving hydraulic hammer used in the pile driving process. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] The present application provides a method for constructing multi-diameter and multi-row-spacing pier piles. Figure 1 and Figure 2 , the method may include the following steps:

[0039] Step 101, obtaining construction drawings, determining the hydraulic hammer to be used for pre-driven piles according to the construction drawings, and adjusting the original hydraulic hammer accordingly.

[0040] Among them, this step belongs to construction preparation, which specifically includes: obtaining construction drawings, studying construction drawings, determining construction pile diameter, pile length and pile sinking angle, measuring and positioning, etc., and then determining the hydraulic hammer to be used for pre-driven piles according to the design drawings and modifying the original hydraulic hammer. Among them, it should be noted that when the hydraulic hammer to be used for pre-driven piles is the same as the original hydraulic hammer, there is no need to modify the original hydraulic hammer.

[0041] In some embodiments, the step of determining the hydraulic hammer to be used for the pre-driven piles according to the construction drawings and adjusting the original hydraulic hammer accordingly includes:

[0042] Determine the pile diameter of the pre-driven pile and the pile spacing between the pre-driven pile and surrounding piles according to the construction drawings;

[0043] Determining the hydraulic hammer to be used for the pre-driven piles based on the pile diameter and the pile spacing;

[0044] The original hydraulic hammer for driving is adjusted to the hydraulic hammer for driving the pre-driven piles.

[0045] Among them, the type of hydraulic hammer to be used is determined according to the pile diameter of the pile to be driven and the pile spacing between the pile to be driven and the piles around it. The substitute hammer needs to be replaced on site during the pile sinking process (the replacement of the substitute hammer is completed by using different guides or transition sections).

[0046] Among them, the embodiments of the present application adopt different replacement driving structures according to the pile diameter and the pile spacing. When the pile spacing is large (for example, greater than 100mm), the hammer cap is inserted into the pile tip. When the pile spacing is small, only 100mm, the pile replacement driving is inserted into the pile.

[0047] Among them, the replacement of hydraulic hammers for pile driving with different pile diameters is shown in Figure 2 There are 3 forms:

[0048] like Figure 3 As shown, the first hammer cap is used for Steel pipe pile, make a hammer cap with a height of 2 meters, and the inner extension distance of the hammer cap is inner diameter Set When steel pipe piles are used, 6 guide plates are evenly distributed inside the hammer cap. The guide plates are welded to the inside of the hammer cap, and 5 holes are opened on each guide plate. The hole is The pile is inserted into the hammer cap, with a distance of 50 mm between the pile and the guide plate.

[0049] like Figure 4 As shown, the second hammer cap is The pile is reconstructed on the basis of the original guide plate, and the guide plate with the same hole is connected with the original guide plate by bolts, and then the nut side is welded firmly to prevent it from falling during the pile sinking process. The pile is inserted into the hammer cap, with a distance of 50 mm between the pile and the guide plate.

[0050] like Figure 5 As shown, the third hammer cap is in the original The pile is reconstructed on the basis of a transition section with a height of 3580mm and an upper outer diameter of Lower outer diameter The upper part of the transition section is inserted into Inside the hammer cap, the lower part is inserted into In the pile, the transition section and the hammer cap are effectively connected by 4 chains, and the lower part of the transition section is connected to the The distance between the inner diameters of the piles is about 50mm. By inserting the piles through the transition section, densely packed piles can be driven without being affected by the piles that have already been driven, which can better ensure the construction quality.

[0051] Among them, when the pile spacing is relatively large, the above three types of piles can be driven by adjusting the guide plate inside the hammer cap. However, when the pile spacing is only 100mm, the thickness of the hammer cap itself plus the outer ear plate exceeds 100mm. At this time, it is necessary to add a transition section (such as Figure 5 ), since the transition section is inserted into the pile to realize pile sinking, it has no impact on the adjacent piles.

[0052] Among them, the same hydraulic hammer is equipped with three modes of replacement driving to adapt to different pile diameters and different pile row spacings. When the row spacing (pile spacing) is larger, the replacement driving hammer can be inserted into the pile for construction. When the row spacing is small, the distance between the driven pile and the pre-construction pile is less than the thickness of the hammer cap. At this time, the insertion replacement driving mode cannot be used, and the replacement driving hammer needs to be inserted into the pile to reduce the impact of the constructed pile.

[0053] Step 102, roughly positioning the pile-driving ship, dropping anchor according to the anchor position layout diagram, and completing the work of the pile-driving ship entering the point.

[0054] Among them, this step belongs to the entry of the pile-driving ship.

[0055] In some embodiments, the piling vessel is equipped with a GPS positioning system, and the rough positioning of the piling vessel includes:

[0056] The piling vessel is roughly positioned by the GPS positioning system.

[0057] Step 103, determine the berthing point of the pile transport ship and complete the work of the pile transport ship entering the point.

[0058] Among them, this step belongs to the pile transport ship entering the point: after adjusting the angle of the pile frame and the hydraulic hammer taking turns to hit the pile, the pile transport ship enters the point and stops at the left and right side of the pile driving ship to facilitate the pile taking by the pile driving ship.

[0059] In some embodiments, before determining the berthing point of the pile transport ship and completing the work of the pile transport ship approaching the berthing point, the method further includes:

[0060] The angle of the pile frame is adjusted according to the slope of the pre-driven pile to meet the pile sinking requirements.

[0061] Among them, this step belongs to adjusting the angle of the pile frame: because the designed dock piles are not all straight piles, there are also some inclined piles, so before piling, the angle of the pile frame must be adjusted according to the slope of the piles to be driven to meet the pile sinking requirements.

[0062] Step 104, adjusting the anchor cable of the piling ship to adjust the pile frame to above the piling ship, and lifting the pre-driven pile bundle by the hook of the piling ship.

[0063] Among them, this step belongs to the lifting of steel pipe piles (pre-driven piles): after the pile transport ship enters the point, the pile frame is adjusted to the top of the pile driving ship by adjusting the anchor cable of the pile driving ship, and then the pre-driven pile bundles are lifted by the hook of the pile driving ship.

[0064] In some embodiments, the number of the hooks is three.

[0065] It should be noted that the number of hooks is not limited to three, and those skilled in the art can set it according to actual conditions, and no specific limitation is made here.

[0066] Step 105, adjusting the anchor cable of the pile-driving ship to move the ship, and positioning the pile-driving ship by a precise positioning system, so that the center of the pile gripper of the pile frame coincides with the center of the pre-driven pile, and the precise positioning work is completed.

[0067] Among them, this step belongs to the precise positioning of the pile-driving ship: the steel pipe pile is kept in a parallel state after being lifted, and then the anchor cable of the pile-driving ship is adjusted to move the ship, and the GPS system equipped on the ship is used for precise positioning, so that the center of the pile gripper of the pile frame coincides with the center of the pre-sunken pile to complete the precise positioning work.

[0068] Step 106, adjusting the hook of the piling ship to complete the work of driving the pre-driven piles, setting them in place, and burying them in the ground by their own weight.

[0069] Among them, this step belongs to the installation of steel pipe piles: after the precise positioning is completed, the three hooks of the pile-driving ship are adjusted to complete the installation, erection and self-weight burial of the steel pipe piles. When erecting the piles, pay attention to the verticality or inclination of the pile body to meet the design requirements.

[0070] Step 107, inserting the hydraulic hammer into the pile tip of the pre-driven pile, completing the hammer inserting and hammer pressing work, so that the pre-driven pile sinks stably under its own weight.

[0071] Among them, this step belongs to hammer sleeve: insert the hydraulic hammer into the pile tip of the pre-driven pile to complete the hammer sleeve and hammer pressure work, so that the pile sinks stably under its own weight.

[0072] Step 108, hammering the pre-driven piles to complete the pile sinking work.

[0073] Among them, this step belongs to hammering piles.

[0074] In some embodiments, the hammering of the pre-driven pile to complete the pile sinking work includes:

[0075] After the pre-driven pile sinks steadily under its own weight, a hammer is used with a small amount of energy to sink the pile. After the penetration of the pile by the hammer is stable, the hammer energy is increased to complete the pile sinking work.

[0076] During the hammer pile driving process, the pile top elevation or final penetration depth is controlled according to the design requirements.

[0077] In some embodiments, after hammering the pre-driven pile to complete the pile sinking work, the method further comprises:

[0078] The pile sinking system on the pile driving ship generates a pile sinking record, and the ship moves to the next pile position to continue sinking piles.

[0079] In some embodiments, before the step of shifting to the next pile position to continue pile sinking, the method further includes:

[0080] Adjust the pile frame angle of the next pile to be driven and the corresponding hydraulic hammer to drive it.

[0081] Among them, if the diameter, slope or row spacing of the piles to be driven are different, it is necessary to adjust the angle of the pile frame and adjust the hydraulic hammer for alternate driving before moving.

[0082] As can be seen from the above, due to design reasons, the diameter of the wharf piles, the angle of the pile sinking, and the distance between the construction piles are not uniform. In order to improve the construction efficiency, this application completes the on-site pile construction by adjusting the hydraulic hammer to alternate driving and adjusting the angle of the pile frame. That is, this application completes the construction work by using the same pile-driving ship and the same hydraulic hammer, and the construction process is mainly completed by adjusting the hydraulic hammer to alternate driving.

[0083] All the above optional technical solutions can be arbitrarily combined to form optional embodiments of the present application, which will not be described one by one here.

[0084] In specific implementation, the present application is not limited by the execution order of the various steps described. If no conflict occurs, some steps can be performed in other orders or simultaneously.

[0085] As can be seen from the above, the method for piling construction of multi-diameter and multi-row-spacing wharf piles provided in the embodiment of the present application first obtains the construction drawings, determines the hydraulic hammer to be used for the pre-driven piles according to the construction drawings and adjusts the original hydraulic hammer accordingly, then roughly positions the pile-driving ship, drops anchor according to the anchor position layout diagram, completes the work of the pile-driving ship approaching the point, then determines the berthing point of the pile-transporting ship, completes the work of the pile-transporting ship approaching the point, then adjusts the anchor cable of the pile-driving ship to adjust the pile frame to the top of the pile-driving ship, and uses the hook of the pile-driving ship to The pre-driven pile bundle is hoisted, and then the anchor cable of the pile driving ship is adjusted to move the ship, and the precise positioning system equipped on the pile driving ship is used to position the pile frame so that the center of the pile holder coincides with the center of the pre-driven pile to complete the precise positioning work, and then the hook of the pile driving ship is adjusted to complete the work of lowering, erecting and self-weighting the pre-driven pile into the ground, and then the hydraulic hammer is inserted into the pile tip of the pre-driven pile to complete the work of inserting and pressing the hammer, so that the pre-driven pile sinks stably under its own weight, and finally the pre-driven pile is hammered to complete the pile sinking work. Since the embodiment of the present application adopts a pile driving ship equipped with a hydraulic hammer, and then replaces the hammer in the form of substitution during the pile sinking process, it can well adapt to the construction of multiple pile diameters and multiple row spacings, saving ship and machine resources and improving construction efficiency.

[0086] The above is a detailed introduction to the multi-diameter and multi-row-spacing wharf pile driving construction method provided by the embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application; at the same time, for technicians in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for constructing multi-diameter and multi-row-spacing pier piles, characterized in that: The method comprises: Obtaining construction drawings, determining the hydraulic hammer to be used for pre-driven piles according to the construction drawings and adjusting the original hydraulic hammer accordingly; Carry out rough positioning of the pile-driving ship, drop anchor according to the anchor layout diagram, and complete the work of the pile-driving ship entering the point; Determine the berthing point for the pile transport ship and complete the work of bringing the pile transport ship into the berthing point; The anchor cable of the pile-driving ship is adjusted to adjust the pile frame to above the pile-driving ship, and the pre-driven pile bundle is lifted by the hook of the pile-driving ship; The anchor cable of the pile-driving ship is adjusted to move the ship, and the precise positioning system equipped on the pile-driving ship is used to position the center of the pile gripper of the pile frame to coincide with the center of the pre-driven pile, thereby completing the precise positioning work; Adjusting the hook of the pile-driving ship to complete the work of driving the pre-driven piles, setting them up and burying them in the ground by their own weight; Inserting a hydraulic hammer into the tip of the pre-driven pile to complete the hammer insertion and hammer pressing work, so that the pre-driven pile sinks stably under its own weight; The pre-driven piles are hammered to complete the pile sinking work.

2. The method for constructing multi-diameter and multi-row-spacing pier piles according to claim 1, characterized in that: The method of determining the hydraulic hammer to be used for the pre-driven pile according to the construction drawings and adjusting the original hydraulic hammer for the driving accordingly includes: Determine the pile diameter of the pre-driven pile and the pile spacing between the pre-driven pile and surrounding piles according to the construction drawings; Determining the hydraulic hammer to be used for the pre-driven piles based on the pile diameter and the pile spacing; The original hydraulic hammer for driving is adjusted to the hydraulic hammer for driving the pre-driven piles.

3. The method for constructing multi-diameter and multi-row-spacing pier piles according to claim 1, characterized in that: Before determining the berthing point of the pile transport ship and completing the work of the pile transport ship approaching the berthing point, the process also includes: The angle of the pile frame is adjusted according to the slope of the pre-driven pile to meet the pile sinking requirements.

4. The method for constructing multi-diameter and multi-row-spacing pier piles according to claim 1, characterized in that: The hammering of the pre-driven pile to complete the pile sinking work includes: After the pre-driven pile sinks steadily under its own weight, a hammer is used with a small amount of energy to sink the pile. After the penetration of the pile by the hammer is stable, the hammer energy is increased to complete the pile sinking work.

5. The method for constructing multi-diameter and multi-row-spacing pier piles according to claim 1, characterized in that: After the hammering of the pre-driven piles to complete the pile sinking work, the process further comprises: The pile sinking system on the pile driving ship generates a pile sinking record, and the ship moves to the next pile position to continue sinking piles.

6. The method for constructing multi-diameter and multi-row-spacing pier piles as claimed in claim 5, characterized in that: Before the method moves to the next pile position to continue pile sinking, the method further includes: Adjust the pile frame angle of the next pile to be driven and the corresponding hydraulic hammer to drive it.

7. The method for constructing multi-diameter and multi-row-spacing pier piles according to claim 1, characterized in that: The piling ship is equipped with a GPS positioning system, and the rough positioning of the piling ship includes: The piling vessel is roughly positioned by the GPS positioning system.

8. The method for constructing multi-diameter and multi-row-spacing pier piles according to claim 1, characterized in that: The number of the hooks is three.

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