TWM660364U - Underground obstacle lifting system - Google Patents

Abstract

An underground obstacle lifting system includes a fixed base, a full set of pipe drills, a crossbeam, a first lifting power source and a pulley block. The fixed base is installed on the ground around a construction hole to connect the full-tube drill, and the full-tube drill includes a drilling casing and a rotating power source for cutting the underground obstacle. The supporting crossbeam is locked to the top of the drilling casing and clamped to the fixed base. The first lifting power source is arranged on one side of the supporting crossbeam and is provided with a hanging steel cable, which is wound around the pulley block and extends downward into the construction hole to connect the cut underground obstacle. The drilling casing is used to provide the bearing force required by the fixed base without sinking, and the cut underground obstacle is loosened to improve construction safety.

Description

Underground obstacle lifting system

This invention belongs to the field of building construction equipment, and specifically refers to an underground obstacle lifting system for use in underground obstacle removal projects. It can use a first lifting power source to loosen the underground obstacle, and then use a second lifting power source to lift it out, greatly improving the safety during construction.

In recent years, there are more and more old communities in the country. After decades of use and multiple earthquakes, these old buildings have more or less suffered structural damage such as cracks or distortions. In order to avoid dangers from continued use, the current urban renewal plan is to replan and construct new buildings on the site of old buildings to improve living quality and enhance safety. The most important thing in implementing the urban renewal plan is to demolish the original old buildings, including the demolition of the above-ground buildings and the removal of underground obstacles. Since the reconstruction must be rebuilt on the underground foundation, whether the original building has underground foundation piles, underground parking lots or basements (collectively referred to as underground obstacles), they must be demolished and cleared. Generally, the casing drilling and cutting method is used to remove underground obstacles. It uses a casing drill to drive a drilling casing. The bottom of the drilling casing is equipped with cutting teeth for cutting underground obstacles, and a hammer grab is used to remove the underground obstacles in the drilling casing. Since the urban renewal plan is aimed at the metropolitan area, there may be residents or workplaces around it, so the environmental protection requirements for low noise and low vibration during the construction process are particularly high, so it is not possible to use the method of crushing and then clamping out.

In addition, in addition to the environmental protection requirements that must be paid attention to during construction, the author found that the removal of underground obstacles by hoisting out the entire block or in sections is also quite difficult. First of all, the mechanical conditions when lifting out and removing underground obstacles are explained. The following two situations often occur: the first situation is to lift out after cutting off the underground floor slab; the second situation is to lift out and remove after cutting off the deep foundation such as old foundation piles, wall piles or continuous walls. Usually, when removing underground obstacles, the most common method is to use a crane to lift out the cut underground obstacles. During construction, they are usually connected to underground obstacles such as old foundations and old piles through hanging objects such as steel plates, steel rings or hooks, and then these unwanted underground obstacles are lifted out using crawler cranes. However, the most dangerous state in this lifting process is when the underground obstacles are about to loosen, because at this time, in addition to their own weight, these old floor slabs, foundation piles and casings may get stuck, or there is friction resistance from soil stuck in the gaps. Therefore, when the above situations occur at the same time, it is very dangerous. The reason is that at the moment of lifting, the weight of the underground obstacles plus the frictional resistance are very large, so the crane's output is usually the greatest. Moreover, the frictional resistance or jamming is buried under the earth and is difficult to predict. Moreover, accidents such as the breaking of the hanging point, the breaking of the hanging chain or the steel cable are most likely to occur at this time. Therefore, accidents that occur during lifting are nothing more than elastic strain of the steel cables and trusses of the crawler crane during lifting. Because of the huge elastic potential energy stored, when the hanging point/steel cable breaks, the steel cables and trusses will be thrown backwards due to the release of elastic potential energy, often causing the crane to overturn and casualties.

In view of this, the author of this invention has improved the existing drilling casing based on the many shortcomings and imperfections of the traditional practices mentioned above, and has further designed the underground obstacle lifting system of this invention based on his many years of experience in drilling casing and on-site construction. This system is particularly suitable for underground obstacle removal projects in urban renewal projects. It uses a first lifting power source to cooperate with a full-casing drill to first lift the underground obstacle and then use a second lifting power source to lift it out. Its advantage is that it uses old foundations/old piles and other underground obstacles in the lifting ( The stage of lifting (loosening) is the stage with the heaviest load and the most dangerous. The first lifting power source such as a winch and a crossbeam installed on the full-casing pipe drill are used to lift (loosen) the old foundation/old pile to remove its friction or remove it from the ground or other underground obstacles. Then, the second lifting power source such as a crane is used to lift out the underground obstacles. The fixed base used to fix the full-casing pipe drill has good bearing capacity, and the friction of the drilling casing in the soil can easily provide hundreds of tons of bearing capacity without sinking. It should be noted that the first lifting power source is a structure similar to the factory overhead crane, but the supporting crossbeam is wider than the drilling casing and is locked on it. This mechanism is used to lift and loosen underground obstacles. It is simple and safe. After it is loosened, it is switched to the second lifting power source to lift it out, which greatly improves its safety.

One purpose of the invention is to provide an underground obstacle lifting system, which includes a fixed base, a full set of pipe drills, a supporting beam, a first lifting power source and a pulley block. The fixed base is installed on the ground around a construction hole to connect the full-tube drill, and the full-tube drill includes a drilling casing and a rotating power source for cutting the underground obstacle. The supporting crossbeam is locked to the top of the drilling casing and clamped to the fixed base. The first lifting power source is arranged on one side of the supporting crossbeam and is provided with a hanging steel cable, which is wound around the pulley block and extends downward into the construction hole to connect the cut underground obstacle. The drilling casing is used to provide the bearing force required by the fixed base without sinking, and the cut underground obstacle is loosened to improve the construction safety and other effects.

To achieve the above-mentioned purpose, the underground obstacle lifting system of the present invention is used to cut the underground obstacle and lift it, and a lifting area is provided on the top of the underground obstacle. The underground obstacle lifting system comprises: a fixed base, which is a tic-tac-toe structure formed by a plurality of frames crossing vertically and horizontally, and the fixed base is installed on the ground around a construction hole; a full set of pipe drilling machines, The whole casing drill includes a drilling casing and a rotary power source. The bottom of the drilling casing is provided with a plurality of cutting parts. The rotary power source is connected to the drilling casing to drive the drilling casing to rotate downward to cut the underground obstacle. The underground obstacle after cutting is smaller than the inner diameter of the drilling casing, and the drilling casing is The invention relates to a first lifting power source, which is arranged on one side of the supporting crossbeam, and the first lifting power source is provided with a hanging steel cable, and the hanging steel cable is provided with a hanging part for connecting the lifting area. ; and a pulley block, which is arranged at the center of the supporting crossbeam, and the hanging steel cable is wound behind the pulley block, so that the hanging part extends downward into the construction hole; and the friction between the drill casing and the ground layer is utilized to provide the fixed base with good bearing capacity without sinking, and the underground obstacle after cutting is lifted and loosened by the first lifting power source.

In one embodiment, the underground obstacle lifting system of the present invention can have two different methods according to the on-site conditions. First, the underground obstacle lifting system of the present invention has a second lifting power source, which is a power connected to the supporting crossbeam, and can lift the supporting crossbeam, the pulley block, the first lifting power source and the drilling casing together with the cut underground obstacle. The second lifting power source is a crawler crane; secondly, the underground obstacle lifting system of this invention has a second lifting power source, which is connected to the underground obstacle. After removing the supporting crossbeam, the pulley block, the first lifting power source and the drilling casing, the second lifting power source is used to lift the cut underground obstacle, and the second lifting power source is a crawler crane. According to the above method, this invention can also use the same structure to make some changes according to the on-site construction, or there are more changes, which will not be repeated here.

It should be noted that the underground obstacles referred to in this work can be selected from any of the basic structures such as underground floors, foundation piles, wall piles and continuous walls, that is, all structures that may form underground obstacles in urban renewal plans are within the scope of application of this work.

1: Underground obstacle lifting system

11:Fixed base

111: Skeleton

112: Installation port

12: Full set of pipe drilling machines

121: Drilling casing

1211: Cutting section

122: Rotational power source

13: Supporting crossbeams

14: First lifting power source

141: Suspension cable

142: Suspension part

15: Pulley set

16: Second lifting power source

2: Underground obstacles

21: Lifting area

3: Construction hole

Figure 1 is a schematic diagram of the structure of a preferred embodiment of this invention.

Figure 2 is a schematic diagram of the operation status of the preferred embodiment of this invention (I).

Figure 3 is a schematic diagram of the operation status of the preferred embodiment of this invention (II).

Figure 4 is a schematic diagram of the operation status of the preferred embodiment of this invention (III).

In order to enable you, the review committee, to clearly understand the content of this work, please refer to the following description and diagram.

Please refer to Figures 1 and 2 to 4, which are schematic diagrams of the structure of the preferred embodiment of the invention and schematic diagrams of various states during operation. As shown in the figure, the underground obstacle lifting system 1 of the invention includes a fixed base 11, a full set of pipe drills 12, a supporting crossbeam 13, a first lifting power source 14 and a pulley block 15, which are used to cut the underground obstacle 2 and lift it, and a lifting area 21 is provided at the top of the underground obstacle 2, wherein the underground obstacle 2 can be selected from one of the basic structures such as underground floor slabs, foundation piles, wall piles and continuous walls.

The fixed base 11 is formed by a plurality of frames 111 intersecting vertically and horizontally to form a tic-tac-toe structure, so that the center position of the fixed base 11 corresponds to the full-casing pipe drill 12 to form an installation opening 112, and the fixed base 11 is installed on the ground around a construction hole 3.

The full casing drill 12 is connected to the mounting port 112 at the center of the fixed base 11, and the full casing drill 12 includes a drilling casing 121 and a rotary power source 122. The bottom of the drilling casing 121 is provided with a plurality of cutting parts 1211. The rotary power source 122 is dynamically connected to the drilling casing 121 to drive the drilling casing 121 to rotate downward to cut the underground obstacle 2. After cutting, the underground obstacle 2 is smaller than the inner diameter of the drilling casing 121, and the drilling casing 121 is placed at the cutting end point.

The supporting crossbeam 13 is locked to the top end of the drilling casing 121, and the width of the supporting crossbeam 13 is greater than that of the drilling casing 121, so that the supporting crossbeam 13 is locked on the fixed base 11 to form a fixed position.

The first lifting power source 14 is disposed on one side of the supporting crossbeam 13, and the first lifting power source 14 is provided with a hanging steel cable 141, and the hanging steel cable 141 is provided with a hanging portion 142 for connecting to the lifting area 21.

The pulley block 15 is arranged at the center of the supporting crossbeam 13, and the hanging cable 141 is wound behind the pulley block 15, so that the hanging part 142 extends downward into the construction hole 3. The configuration of the pulley block 15 is used to save effort and change the direction of the hanging cable 141; the friction between the drilling casing 121 retained in the construction hole 3 and the ground is utilized to provide the fixed base 11 with good bearing capacity without sinking, and the underground obstacle 2 after cutting is lifted and loosened by the first lifting power source 14.

As shown in FIG3 , the underground obstacle lifting system 1 of the present invention further has a second lifting power source 16, which is used to dynamically connect the supporting crossbeam 13 to lift the supporting crossbeam 13, the pulley block 15, the first lifting power source 14 and the drilling casing 121 together with the cut underground obstacle 2, and the second lifting power source 16 is a crawler crane.

In another embodiment, as shown in FIG. 4 , the second lifting power source 16 of the underground obstacle lifting system 1 of the present invention is used to power the underground obstacle 2, and the supporting crossbeam 13, the pulley block 15, the first lifting power source 14 and the drilling casing 121 are first removed, and finally the second lifting power source 16 is used to lift the cut underground obstacle 2.

In summary, the multi-claw type hanging device 2 of the invention is connected to the full-casing pipe drill 12 through the fixed base 11 installed on the ground of the construction hole 3. After the full-casing pipe drill 12 is used to cut the underground obstacle 2, the first lifting power source 14 is used to loosen the underground obstacle 2. After solving the possible accidental stages such as the hanging point breaking, the hanging chain or the steel cable breaking during the lifting process, the second lifting power source 16 is used to lift and remove the loosened underground obstacle 2. During the lifting process, the drilling casing 121 can also be used to provide the bearing force required by the fixed base 11 without sinking, so the purpose of greatly improving the construction safety can be achieved.

However, the above is only the best implementation example of this creation, and is not used to limit the scope of implementation of this creation. Therefore, those who have common knowledge in the relevant technical field, or those who are familiar with this technology and make equivalent or easy changes, should be covered by the patent scope of this creation without departing from the spirit and scope of this creation.

1: Underground obstacle lifting system

11:Fixed base

111: Skeleton

112: Installation port

12: Full set of pipe drilling machines

121: Drilling casing

1211: Cutting section

122: Rotational power source

13: Supporting crossbeams

14: First lifting power source

141: Suspension cable

142: Suspension part

15: Pulley set

16: Second lifting power source

Claims (6)

An underground obstacle lifting system is used to cut the underground obstacle and lift it, and a lifting area is provided on the top of the underground obstacle. The underground obstacle lifting system comprises: a fixed base, which is a structure formed by a plurality of frames crossing vertically and horizontally to form a tic-tac-toe shape, and the fixed base is installed on the ground around a construction hole; a full set of pipe drills connected to the fixed base; The central position of the fixed base, and the full casing drill includes a drilling casing and a rotating power source. The bottom end of the drilling casing is provided with a plurality of cutting parts. The rotating power source is dynamically connected to the drilling casing to drive the drilling casing to rotate downward to cut the underground obstacle. The underground obstacle after cutting is smaller than the inner diameter of the drilling casing, and the drilling casing is placed on the cutting part. a supporting crossbeam which is locked to the top end of the drilling casing, and the width of the supporting crossbeam is greater than the drilling casing, so that the supporting crossbeam is clamped on the fixed base to form a fixation; a first lifting power source is arranged on one side of the supporting crossbeam, and the first lifting power source is provided with a hanging steel cable, and the hanging steel cable is provided with a hanging portion for connecting to the lifting area; and A pulley block is arranged at the center of the supporting crossbeam, and the hanging steel cable is wound behind the pulley block, so that the hanging part extends downward into the construction hole; the friction between the drill casing and the ground layer is utilized to provide the fixed base with good bearing capacity without sinking, and the underground obstacle after cutting is lifted and loosened by the first lifting power source. The underground obstacle lifting system as described in claim 1 further has a second lifting power source, which is connected to the supporting crossbeam to lift the supporting crossbeam, the pulley block, the first lifting power source and the drilling casing together with the underground obstacle after cutting. An underground obstacle lifting system as described in claim 2, wherein the second lifting power source is a crawler crane. The underground obstacle lifting system as described in claim 1 further has a second lifting power source, which is connected to the underground obstacle. The supporting crossbeam, the pulley block, the first lifting power source and the drilling casing are first removed, and finally the cut underground obstacle is lifted using the second lifting power source. An underground obstacle lifting system as described in claim 4, wherein the second lifting power source is a crawler crane. The underground obstacle lifting system as described in claim 1, wherein the underground obstacle is selected from one of the basic structures such as underground floor slabs, foundation piles, wall piles and continuous walls.