A tamping head for improving shallow foundation hole forming and compaction qualification rate and its use method

Abstract

The present invention provides a ramming head for improving the qualified rate of shallow foundation hole formation and compaction and a method for using the ramming head. The ramming head for improving the qualified rate of shallow foundation hole formation and compaction comprises a ramming head and a connecting rod; wherein the upper and lower sides of the ramming head are respectively provided with grooves, and the connecting rod is vertically fixedly connected in the groove on the upper side of the ramming head; the groove walls of the upper and lower grooves of the ramming head are also respectively provided with angular notches. The beneficial effects of the present invention are as follows: the present application adopts mechanized hole cleaning and hole expansion, which helps to improve work efficiency, and by providing grooves on the upper and lower sides of the ramming head and angular notches on the groove walls of the grooves to form a hollow design on the upper and lower sides of the ramming head, the purpose of reducing the weight of the ramming head and reducing the prefabrication cost is achieved, and the power requirements of the excavator are also reduced. Moreover, the use of the ramming head for hole cleaning and hole expansion helps to improve the qualified rate of hole formation and compaction.

Description

Technical Field

[0001] The invention relates to the technical field of ramming heads, and in particular to a ramming head for improving the qualified rate of shallow foundation hole forming and compaction, and a use method thereof. Background Art

[0002] During the construction of the first phase of the Zhuzhou International Circuit, when setting up the concrete foundations of the safety facility guardrails and protective nets, it is necessary to use a rotary drilling auger to drill to a designed depth of less than 5 cm, and temporarily pile the removed soil in an open location nearby to form an initial hole. After the elevation test is qualified, the initial hole needs to be expanded and cleaned. However, the traditional manual expansion and cleaning of holes has the problem of low efficiency. At the same time, the traditional manual expansion and cleaning of holes has the problem of low pass rate of foundation hole formation and compaction. Summary of the invention

[0003] The purpose of the invention is to overcome the deficiencies of the prior art and to provide a ramming head and a method for using the ramming head for improving the shallow foundation hole forming and compaction qualification rate.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention provides a ramming head for improving the qualified rate of shallow foundation hole forming and compaction, and the ramming head for improving the qualified rate of shallow foundation hole forming and compaction comprises a ramming head and a connecting rod; wherein, grooves are respectively arranged on the upper and lower sides of the ramming head, and the connecting rod is vertically fixedly connected in the groove on the upper side of the ramming head; and angular notches are also respectively arranged on the groove walls of the grooves on the upper and lower sides of the ramming head.

[0006] Preferably, a reinforcing plate is fixedly provided in the groove on the upper side of the ram head, and the reinforcing plate is also fixedly connected to the connecting rod.

[0007] Preferably, the number of the reinforcing plates is four, and the four reinforcing plates are evenly distributed around the connecting rod.

[0008] Preferably, each of the reinforcing plates is a triangular plate structure.

[0009] A method for using a tamping head for improving the shallow foundation hole forming and compaction qualification rate, the method comprising the following steps:

[0010] Measure and lay out the specific position of the foundation according to the design drawings. After laying out, mark the position of the foundation and re-measure it. The error should be controlled within 5mm;

[0011] Use a rotary drilling auger to drill to a designed depth of less than 5 cm at the foundation position, and temporarily pile the remaining soil taken out in an open area nearby to form an initial hole, re-measure the elevation and clean up the remaining soil;

[0012] It is beneficial for the excavator to drive the ramming head to cut into the soil from the initial hole to expand the initial hole.

[0013] In the above embodiment, the ramming head provided in the present application can be fixedly connected to the digging arm of the excavator through a connecting rod, and mechanized hole cleaning and hole expansion are adopted, which helps to improve work efficiency; by arranging grooves on the upper and lower sides of the ramming head and arranging angular notches on the groove walls of the grooves, a hollow design is formed on the upper and lower sides of the ramming head, thereby achieving the purpose of reducing the weight of the ramming head and reducing the prefabrication cost, and also reducing the power requirement of the excavator; a hollow structure is formed at the bottom of the ramming head, which reduces the force area of ​​the ramming head in the process of cutting into the soil, helps to reduce resistance, and at the same time can make the loose soil gather under the ramming head and be compacted; the side of the ramming head can make the loose soil on the wall of the initial hole fall off, achieve the effect of hole expansion and cleaning, and can squeeze the wall of the initial hole, enhance the compaction degree of the wall of the initial hole, and help to improve the hole formation and compaction qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the ramming head structure for improving the shallow foundation hole forming and compaction qualification rate provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] In order to facilitate the understanding of the ramming head for improving the qualified rate of shallow foundation hole formation and compaction provided by the embodiment of the present invention, the application scenario of the ramming head for improving the qualified rate of shallow foundation hole formation and compaction provided by the embodiment of the present application is first explained. The ramming head for improving the qualified rate of shallow foundation hole formation and compaction provided by the embodiment of the present application is used to expand and clean the initial hole formed by the rotary drilling auger. However, the traditional manual expansion and cleaning of holes currently have the problems of low efficiency and low qualified rate of hole formation and compaction. Therefore, the present application provides a ramming head for improving the qualified rate of shallow foundation hole formation and compaction to solve the above problems. It is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Please refer to Figure 1 , Figure 1 It is a schematic structural diagram of a ramming head for improving the shallow foundation hole forming and compaction qualification rate provided by an embodiment of the present invention.

[0018] like Figure 1 As shown, the ramming head for improving the shallow foundation hole forming and compaction qualification rate includes a ramming head 2 and a connecting rod 1, wherein grooves 3 are respectively provided on the upper and lower sides of the ramming head 2, and the connecting rod 1 is vertically fixedly connected in the groove 3 on the upper side of the ramming head 2.

[0019] Specifically, the lower end of the connecting rod 1 is perpendicular to the upper side of the ramming head 2, and is fixedly connected to the middle position of the bottom inner side of the groove 3 on the upper side of the ramming head 2. The upper end of the connecting rod 1 is used to be fixedly connected to the end of the excavating arm of the excavator, so that the excavating arm of the excavator can drive the ramming head 2 to expand and clean the initial hole formed by the rotary drilling auger.

[0020] In this embodiment, grooves 3 are respectively provided on the upper and lower sides of the ram head 2, which helps to reduce the weight of the ram head 2, thereby reducing the power requirement of the excavator. Furthermore, angular notches 4 are respectively provided on the groove walls of the grooves 3 on the upper and lower sides of the ram head 2, and the design of the angular notches 4 further reduces the weight of the ram head 2, so that the upper and lower sides of the ram head 2 form a hollow design, which can undoubtedly reduce the power requirement of the excavator to a great extent.

[0021] Specifically, the angular notches 4 are formed on each groove wall of the groove 3 on the upper and lower sides of the ramming head 2, and correspond to each other, and the wide sides of the corresponding angular notches 4 are opposite to each other. After the improved design, since the lower side of the ramming head 2 forms a hollow structure, the force area of ​​the ramming head 2 in the process of cutting into the soil can be reduced, thereby achieving the purpose of reducing resistance.

[0022] In addition, in order to strengthen the connection strength between the connecting rod 1 and the ram head 2, a reinforcing plate 5 is fixedly provided in the groove 3 on the upper side of the ram head 2, and the reinforcing plate 5 is also fixedly connected to the connecting rod 1. In this embodiment, the number of reinforcing plates 5 is set to four, and the four reinforcing plates 5 are evenly distributed around the connecting rod 1. Each reinforcing plate 5 is a triangular plate structure, specifically a right-angled triangle structure, with a vertical right-angled side fixedly connected to the connecting rod 1, and a horizontal right-angled side fixedly connected to the bottom of the groove 3 on the upper side of the ram head 2.

[0023] When the present application is used, the connecting rod 1 is fixedly connected to the end of the excavating arm of the excavator. Under the drive of the excavating arm of the excavator, the bottom of the ramming head 2 is aligned with the hole opening of the initial hole drilled by the rotary drilling auger. Under the pressure of the hydraulic cylinder on the excavating arm of the excavator, the ramming head 2 is cut into the initial hole formed. The side of the ramming head 2 can make the loose soil on the hole wall fall into the bottom of the hole, achieving the effect of expanding the hole and cleaning the hole. At the same time, it can also squeeze the hole wall to enhance the compaction of the hole wall of the initial hole. During the process of the ramming head 2 cutting in, the loose soil scraped off the hole wall can be gathered into the groove 3 on the lower side of the ramming head 2 through the angular notch 4 on the groove wall of the groove 3 on the lower side of the ramming head 2, and gathered under the ramming head 2, and finally the ramming head 2 will compact the loose soil at the bottom of the hole.

[0024] In the above embodiment, the ramming head 2 provided in the present application can be fixedly connected to the digging arm of the excavator through the connecting rod 1, and mechanized hole cleaning and hole expansion are adopted, which helps to improve work efficiency; by arranging grooves 3 on the upper and lower sides of the ramming head 2 and arranging angular notches 4 on the groove wall of the groove 3, a hollow design is formed on the upper and lower sides of the ramming head 2, so as to achieve the purpose of reducing the weight of the ramming head 2 and reducing the prefabrication cost, and also reduce the power requirement of the excavator; a hollow structure is formed at the bottom of the ramming head 2, which reduces the force area of ​​the ramming head 2 in the process of cutting into the soil, helps to reduce resistance, and at the same time can make the loose soil gather under the ramming head 2 and be compacted; the side of the ramming head 2 can make the loose soil of the initial hole wall fall off, so as to achieve the effect of hole expansion and hole cleaning, and can squeeze the initial hole wall to enhance the compaction degree of the initial hole wall, which helps to improve the hole formation and compaction qualification rate.

[0025] A method for using a tamping head for improving the shallow foundation hole forming and compaction qualification rate, the method comprising the following steps:

[0026] First, measure and mark out the specific position of the foundation according to the design drawings. After marking, the position of the foundation needs to be marked and remeasured to ensure that the error is within 5mm.

[0027] Then, use a rotary drilling auger to drill to a designed depth of less than 5 cm at the foundation position, and temporarily pile the remaining soil taken out in a nearby open space to form an initial hole at the foundation position. After re-measuring the elevation, clean up the remaining soil. The principle of cleaning the remaining soil is: if the elevation is too low, the soil will be piled on the spot for leveling; if the elevation is higher than the design, the remaining soil will be transported out.

[0028] Finally, it is beneficial for the excavator to drive the ramming head to cut into the soil from the initial hole to expand the initial hole. The specific excavator is a crawler excavator of model JH70-8. The connecting rod 1 of the ramming head is fixedly connected to the end of the excavating arm of the excavator. Under the drive of the excavating arm of the excavator, the bottom of the ramming head 2 is aligned with the hole opening of the initial hole drilled by the rotary drilling auger. Under the pressure of the hydraulic cylinder on the excavating arm of the excavator, the ramming head 2 is cut into the formed initial hole. The side of the ramming head 2 can make the loose soil on the hole wall fall into the bottom of the hole, achieving the effect of expanding and cleaning the hole. At the same time, it can also squeeze the hole wall to enhance the compaction of the hole wall of the initial hole. In the process of the ramming head 2 cutting in, the loose soil scraped off the hole wall can be gathered into the groove 3 on the lower side of the ramming head 2 through the angular notch 4 on the groove wall of the groove 3 on the lower side of the ramming head 2, and gathered under the ramming head 2, and finally the ramming head 2 will compact the loose soil at the bottom of the hole. The hollow design of the upper and lower parts of the ramming head achieves the purpose of reducing weight and reducing prefabrication costs, and also reduces the power requirements of the excavator; at the same time, since the bottom of the ramming head is hollow, the force area of ​​the ramming head cutting into the soil is reduced, which helps to reduce resistance, and at the same time can make the loose soil gather under the ramming head and be compacted; in addition, the side of the ramming head can make the loose soil on the wall of the initial hole fall off, achieving the effect of hole expansion and hole cleaning, and can squeeze the wall of the initial hole to enhance the compaction of the wall of the initial hole, thereby helping to improve the hole formation and compaction qualification rate.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ramming head for improving the pass rate of shallow foundation hole forming and compaction, the characteristics of which include: Rammer and connecting rod; wherein the rammer is provided with grooves on the upper and lower sides respectively, and forms a hollow design; the connecting rod is vertically and fixedly connected in the groove on the upper side of the rammer; the upper end of the connecting rod is used to be fixedly connected to the end of the digging arm of the excavator, and the digging arm is used to drive the rammer to expand, clean and squeeze the hole wall of the initial hole formed by the rotary drilling auger, and finally gather the loose soil and compact it at the bottom of the hole; Angular notches are also provided on the groove walls of the upper and lower grooves of the ram head respectively; a reinforcing plate is fixedly provided in the groove on the upper side of the ram head, and the reinforcing plate is fixedly connected to the connecting rod; there are four reinforcing plates, and the four reinforcing plates are evenly distributed around the connecting rod; each of the reinforcing plates is a triangular plate structure; the angular notches are opened on each groove wall of the upper and lower grooves of the ram head, and correspond to each other up and down, and the wide sides of the corresponding angular notches are opposite to each other; the angular notch on the upper side of the ram head is a V-shaped notch, and the angular notch on the lower side of the ram head is an inverted V-shaped notch.

2. A method for using a ramming head to improve the shallow foundation hole forming and compaction qualification rate, characterized in that: The method of use includes the following steps: Measure and lay out the specific position of the foundation according to the design drawings. After laying out, mark the position of the foundation and re-measure it. The error should be controlled within 5mm; Use a rotary drilling auger to drill to a designed depth of less than 5 cm at the foundation position, and temporarily pile the remaining soil taken out in an open area nearby to form an initial hole, re-measure the elevation and clean up the remaining soil; Finally, the excavator is used to drive the ramming head to cut into the soil from the initial hole to expand the initial hole; the ramming head adopts the ramming head as described in claim 1.

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