Pile machine construction measuring device

Abstract

The utility model relates to the technical field of construction monitoring of dynamic compaction foundation treatment and discloses a pile machine construction measuring device which comprises a dynamic compaction machine, crawler wheels are arranged at the bottom end of the dynamic compaction machine, a suspension arm is arranged on the left side of the top end of the dynamic compaction machine, and a supporting rod is fixedly connected to the right side of the top end of the dynamic compaction machine. According to the pile machine construction measuring device, the hydraulic cylinder and the fixing rod are arranged, the hydraulic cylinder is started after the dynamic compactor moves to a proper position, the hydraulic cylinder drives the fixing rod to descend through the mounting plate, the fixing rod is made to descend into soil, and therefore the dynamic compactor can be limited through the fixing rod, and the stability of the dynamic compactor is improved; according to the device, the measuring accuracy is prevented from being affected by accidental deviation of the rammer during foundation ramming, the change of the ramming settlement can be measured through the ultra-wideband base station, the differential GNSS positioning antenna and the ultra-wideband label, and the problems that the device is inconvenient to limit and fix through an auxiliary assembly, deviation is prone to occurring, and the measuring accuracy is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction monitoring of dynamic compaction foundation treatment, in particular to a pile driver construction measurement device. Background Art

[0002] A dynamic rammer is a machine used to compact loose soil in construction projects. There are many types of dynamic rammers, and users can choose a suitable dynamic rammer according to their own needs. During the operation of the dynamic rammer, the hook will be repeatedly used to lift the rammer to a certain height, and then the rammer will be lowered to compact the loose soil. During the construction of the pile driver, a measuring device is required to measure the change in the ramming amount.

[0003] A common pile driver construction measurement device still has some problems. For example, the device is prone to accidental displacement when the rammer descends, and it is inconvenient to limit and fix the device through auxiliary components. The device is prone to displacement, which affects the accuracy of the measurement.

[0004] Therefore, we proposed a pile driver construction measurement device to improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a pile driver construction measurement device to solve the problem in the above background technology that it is inconvenient to limit and fix the device through auxiliary components, and it is easy to deviate and affect the measurement accuracy.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a pile driver construction measurement device, comprising a dynamic ramming machine, wherein the bottom end of the dynamic ramming machine is provided with a crawler wheel, a boom is provided on the left side of the top of the dynamic ramming machine, a support rod is fixedly connected to the right side of the top of the dynamic ramming machine, a steel cable is provided on the outside between the support rods, and an auxiliary limiting structure is provided on the bottom end of the left side of the dynamic ramming machine;

[0007] The limiting structure includes a connecting plate and a fixing rod. The bottom end of the right side of the rammer is fixedly connected to the connecting plate, and hydraulic cylinders are installed at both ends of the top of the connecting plate. The bottom end of the hydraulic cylinder is fixedly connected to the mounting plate, and the bottom end of the mounting plate is fixedly connected to the fixing rod. A lateral pressure sensor is installed at the bottom end of the right side of the steel cable, and an ultra-wideband base station is installed at the bottom end of the left side of the steel cable. The top end of the boom is fixedly connected to a top plate, and the inside of the top plate is movably connected to a limiting roller. A differential GNSS positioning antenna and an ultra-wideband tag are respectively installed inside the top plate.

[0008] Preferably, a lateral pressure sensor is installed at the bottom end of the right side of the steel cable, and an ultra-wideband base station is installed at the bottom end of the left side of the steel cable.

[0009] Preferably, a differential GNSS positioning antenna and an ultra-wideband tag are installed inside the top plate respectively.

[0010] Preferably, two groups of hydraulic cylinders are provided, and the hydraulic cylinders are symmetrically distributed about the vertical center line of the connecting plate.

[0011] Preferably, a rammer is provided on the left side of the dynamic ramming machine, and a hanging ring is fixedly connected to the top end of the rammer.

[0012] Preferably, the fixing rods are provided in multiple groups, and the fixing rods are arranged at equal intervals at the bottom end of the mounting plate.

[0013] Preferably, reinforcing rods are fixedly connected to both sides of the support rod, and the steel cable slides on the top end of the limiting roller.

[0014] Preferably, a hook is installed at the bottom end of the left side of the steel cable, and the hook is arranged inside the hanging ring, and the hook and the hanging ring cooperate with each other.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the pile driver construction measurement device not only improves the measurement accuracy, but also strengthens the support rod;

[0016] (1) By providing a connecting plate, a hydraulic cylinder, a mounting plate and a fixing rod, the dynamic tamping machine is moved to a suitable position and the hydraulic cylinder is started. The hydraulic cylinder drives the fixing rod to descend through the mounting plate, so that the fixing rod descends into the soil. Thus, the dynamic tamping machine can be limited by the fixing rod, thereby improving the stability of the dynamic tamping machine and preventing the tamping hammer from accidentally deviating during tamping and affecting the accuracy of the measurement. The change in the tamping amount can be measured by the ultra-wideband base station, differential GNSS positioning antenna and ultra-wideband tag;

[0017] (2) By providing a support rod, a reinforcing rod and a limiting roller, the limiting roller can not only reduce the friction between the steel cable and the top plate, but also facilitate the steel cable to drive the rammer to rise and fall. The reinforcing rod is provided on both sides of the support rod to support the support rod, increase the strength of the support rod, and prevent the support rod from accidentally bending during use, affecting its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of an enlarged side cross-sectional structure of a connecting plate of the present invention;

[0020] Figure 3 This is an enlarged front cross-sectional structural diagram of the hook of the present invention;

[0021] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0022] In the figure: 1. Dynamic compaction machine; 2. Track wheel; 3. Hanging ring; 4. Rammer; 5. Hook; 6. Ultra-wideband base station; 7. Boom; 8. Top plate; 9. Steel cable; 10. Lateral pressure sensor; 11. Support rod; 12. Reinforcement rod; 13. Connecting plate; 14. Hydraulic cylinder; 15. Mounting plate; 16. Fixing rod; 17. Differential GNSS positioning antenna; 18. Limiting roller; 19. Ultra-wideband tag. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-4 A pile driver construction measurement device includes a dynamic tamping machine 1, a crawler wheel 2 is provided at the bottom end of the dynamic tamping machine 1, a boom 7 is provided on the left side of the top of the dynamic tamping machine 1, a support rod 11 is fixedly connected to the right side of the top of the dynamic tamping machine 1, a steel cable 9 is provided outside between the support rods 11, and an auxiliary limiting structure is provided at the bottom end of the left side of the dynamic tamping machine 1;

[0025] The limiting structure includes a connecting plate 13 and a fixing rod 16. The bottom end of the right side of the dynamic tamping machine 1 is fixedly connected to the connecting plate 13. Hydraulic cylinders 14 are installed at both ends of the top of the connecting plate 13. The bottom end of the hydraulic cylinder 14 is fixedly connected to the mounting plate 15. The bottom end of the mounting plate 15 is fixedly connected to the fixing rod 16. A lateral pressure sensor 10 is installed at the bottom end of the right side of the steel cable 9. An ultra-wideband base station 6 is installed at the bottom end of the left side of the steel cable 9. The top end of the boom 7 is fixedly connected to the top plate 8. A differential GNSS positioning antenna 17 and an ultra-wideband tag 19 are respectively installed inside the top plate 8.

[0026] A lateral pressure sensor 10 is installed at the bottom end of the right side of the steel cable 9, and an ultra-wideband base station 6 is installed at the bottom end of the left side of the steel cable 9. A differential GNSS positioning antenna 17 and an ultra-wideband tag 19 are installed inside the top plate 8. Multiple groups of fixing rods 16 are provided, and the fixing rods 16 are arranged at equal intervals at the bottom end of the mounting plate 15. Two groups of hydraulic cylinders 14 are provided, and the hydraulic cylinders 14 are symmetrically distributed about the vertical center line of the connecting plate 13.

[0027] Specifically, if Figure 1 and Figure 2As shown, after the dynamic tamping machine 1 moves to a suitable position, the hydraulic cylinder 14 is started. The hydraulic cylinder 14 drives the fixing rod 16 to descend through the mounting plate 15, so that the fixing rod 16 descends into the soil, so that the dynamic tamping machine 1 can be limited by the fixing rod 16, thereby improving the stability of the dynamic tamping machine 1 and preventing the rammer 4 from accidentally deviating during tamping to affect the measurement accuracy. The change in the tamping amount can be measured through the ultra-wideband base station 6, the differential GNSS positioning antenna 17 and the ultra-wideband tag 19.

[0028] Example 2: A rammer 4 is provided on the left side of the dynamic ramming machine 1, and a hanging ring 3 is fixedly connected to the top of the rammer 4. Reinforcement rods 12 are fixedly connected to both sides of the support rod 11. The steel cable 9 slides on the top of the limiting roller 18. A hook 5 is installed at the bottom end of the left side of the steel cable 9. The hook 5 is arranged inside the hanging ring 3, and the hook 5 and the hanging ring 3 cooperate with each other.

[0029] Specifically, if Figure 1 and Figure 4 As shown, the limiting roller 18 can not only reduce the friction between the steel cable 9 and the top plate 8, but also facilitate the steel cable 9 to drive the rammer 4 to rise and fall. The reinforcing rod 12 is arranged on both sides of the support rod 11, which can support the support rod 11, increase the strength of the support rod 11, and prevent the support rod 11 from accidentally bending during use and affecting its use.

[0030] Working principle: When in use, the utility model installs the ultra-wideband base station 6 for wireless ranging on the left side of the upper steel cable 9 to complete the indirect measurement of the tamping amount.

[0031] Step 1: Install a differential GNSS positioning antenna 17 and an ultra-wideband tag 19 on the top of the boom 7, an ultra-wideband base station 6 on the left side of the steel cable 9, and a lateral pressure sensor 10 on the right side of the steel cable 9;

[0032] Step 2: Calibrate the tension threshold of the rammer 4. The purpose is to determine the instantaneous action of the steel cable 9 lifting the rammer 4 during the measurement process. Specifically, it includes:

[0033] Step 2.1: The dynamic tamping machine 1 slowly raises the rammer 4. When the rammer 4 is at a height of 0.5 m, 1 m, 5 m, and 10 m from the ground, the rammer 4 stays at each height for 5 seconds. The tension value at the corresponding position is recorded to eliminate the tension value error caused by the shaking of the steel cable 9.

[0034] Step 2.2, for the tension values at four different heights, obtain the filtered average tension value as the tension threshold for determining whether the rammer 4 is lifted;

[0035] Step 3: Before the dynamic compaction machine 1 starts working on the new compaction point, the vehicle boom 7 stops at a position directly above the compaction point. Based on the tension threshold value obtained in step 2, the zero point position of the compaction amount change is obtained, specifically including:

[0036] Step 3.1: Use differential GNSS positioning to obtain the coordinates (xPS, yPS, zPS) of the installation point of the GNSS antenna at the top of the boom 7 in the geodetic coordinate system. Compare these coordinates with the tamping point coordinates from the previous measurement process to determine whether the boom 7 is at the new tamping point position.

[0037] Step 3.2, the boom 7 slowly suspends the rammer 4 until the tension value measured by the lateral pressure sensor 10 exceeds the tension threshold in step 2.2, and the boom 7 stops the suspending action;

[0038] Step 3.3: Obtain the coordinates O-PS (xPS, yPS, zPS) of the installation point of the GNSS antenna at the top of the boom 7 using the GNSS antenna at the top of the boom 7, and obtain the height Gs relative to the ground plane using elevation fitting.

[0039] Step 3.4: Measure the relative distance dS between the UWB tag 19 and the UWB base station 6 using UWB technology, i.e., the distance between the top of the boom 7 and the hook 5;

[0040] Step 3.5: The height difference between the UWB base station 6 at the hook 5 and the bottom of the rammer 4 is TS=Gs-dS;

[0041] Step 4: Based on steps 2 and 3, real-time acquisition of the tamping change during the i-th tamping process is performed, specifically including:

[0042] Step 4.1: The winch mechanism of the dynamic tamping machine 1 starts to rotate, and the steel cable 9 passing through the boom 7 hangs the tamping hammer 4 and moves it slowly upward;

[0043] Step 4.2: When the tension value measured by the lateral pressure sensor 10 exceeds the tension threshold value of step 2.2, the distance dRi between the UWB tag 19 and the UWB base station 6 and the coordinates O-PRi of the GNSS antenna at the top of the boom 7 are recorded;

[0044] Step 4.3: Based on the GNSS antenna coordinates obtained in step 4.2, obtain the height gRi of the top of the boom 7 relative to the ground plane through elevation fitting, and the tamping amount Δdi of the i-th tamping process = dRi + TS - gRi;

[0045] Step 4.4: The boom 7 continues to be lifted upward until the rammer 4 is unhooked, and the process returns to step 4.1 to perform the (i+1)th ramming process.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pile driver construction measurement device, comprising a dynamic compaction machine (1), characterized in that: The bottom end of the dynamic tamping machine (1) is provided with a crawler wheel (2), the left side of the top of the dynamic tamping machine (1) is provided with a boom (7), the right side of the top of the dynamic tamping machine (1) is fixedly connected with a support rod (11), the outside of the support rods (11) is provided with a steel cable (9), and the bottom end of the left side of the dynamic tamping machine (1) is provided with an auxiliary limiting structure; The limiting structure includes a connecting plate (13) and a fixing rod (16); the bottom end of the right side of the dynamic tamping machine (1) is fixedly connected to the connecting plate (13); hydraulic cylinders (14) are installed at both ends of the top of the connecting plate (13); the bottom end of the hydraulic cylinder (14) is fixedly connected to the mounting plate (15); the bottom end of the mounting plate (15) is fixedly connected to the fixing rod (16); the top end of the boom (7) is fixedly connected to the top plate (8); and the top plate (8) is movably connected to a limiting roller (18) inside.

2. A pile driver construction measurement device according to claim 1, characterized in that: A lateral pressure sensor (10) is installed at the bottom end of the right side of the exterior of the steel cable (9), and an ultra-wideband base station (6) is installed at the bottom end of the left side of the exterior of the steel cable (9).

3. A pile driver construction measurement device according to claim 1, characterized in that: A differential GNSS positioning antenna (17) and an ultra-wideband tag (19) are respectively installed inside the top plate (8).

4. A pile driver construction measurement device according to claim 1, characterized in that: A rammer (4) is provided on the left side of the dynamic rammer (1), and a hanging ring (3) is fixedly connected to the top end of the rammer (4).

5. The pile driver construction measurement device according to claim 1, characterized in that: The fixing rods (16) are provided in multiple groups, and the fixing rods (16) are arranged at equal intervals at the bottom end of the mounting plate (15).

6. A pile driver construction measurement device according to claim 1, characterized in that: Two groups of hydraulic cylinders (14) are provided, and the hydraulic cylinders (14) are symmetrically distributed about the vertical center line of the connecting plate (13).

7. The pile driver construction measurement device according to claim 1, characterized in that: Reinforcement rods (12) are fixedly connected to both sides of the support rod (11), and the steel cable (9) slides on the top end of the limiting roller (18).

8. The pile driver construction measurement device according to claim 1, characterized in that: A hook (5) is installed at the bottom end of the left side of the steel cable (9), and the hook (5) is arranged inside the hanging ring (3). The hook (5) and the hanging ring (3) cooperate with each other.

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