CN114775702A - Vibration isolation barrier and construction method thereof - Google Patents

Abstract

The invention relates to a vibration isolation barrier and a construction method thereof. A plurality of hard tubular piles are arranged in the foam concrete barrier side by side, the outer walls of the hard tubular piles are provided with side wings, the side wings of adjacent hard tubular piles are connected in a lap joint mode, and the hard tubular piles are made of different materials from the foam concrete barrier. The vibration isolation barrier is disposed between the vibration source and the building substrate, and vibrations generated by the vibration source are attenuated a plurality of times when passing through the vibration isolation barrier. The different materials have larger impedance ratio, and vibration is greatly attenuated when being transmitted from one material to another material, thereby achieving the effect of vibration reduction. The vibration needs to sequentially pass through the rock-soil body → the foam concrete → the hard material → the cavity → the hard material → the foam concrete → the rock-soil body, and the propagation of the vibration is effectively weakened through multiple attenuation, so that the vibration isolation effect is improved. Compared with the conventional cement concrete, the foam concrete is a porous light structure, has better vibration energy absorption effect and lower manufacturing cost.

Description

Vibration isolation barrier and construction method thereof

Technical Field

The invention relates to the technical field of underground vibration isolation piles, in particular to a vibration isolation barrier and a construction method thereof.

Background

With the rapid development of rail transit, transportation vehicles such as subways and high-speed rails can travel on the ground surface, and also can travel underground on part of road sections, and vibration generated underground can be transmitted to the area where a building is located along rock-soil bodies. Vibrations generated during underground construction are also transmitted to the area where the building is located. Vibration noise pollution also belongs to the aspect of environmental pollution, and the vibration not only has adverse effects on the safety and the service life of the building, but also influences the normal life of people in the building. For this reason, many researches have been made on how to reduce environmental pollution caused by underground vibration sources. In order to reduce the adverse effects of underground sources of vibration on nearby buildings in general, a row of piles for vibration isolation may be provided between the source of vibration and the building bed. However, the row piles generally used for vibration isolation have the problems of poor vibration isolation effect or higher manufacturing cost.

Disclosure of Invention

Aiming at the problems, the invention provides a vibration isolation barrier and a construction method thereof, so as to improve the vibration isolation effect and effectively control the manufacturing cost.

A vibration isolation barrier, comprising:

a foam concrete barrier;

a plurality of stereoplasm tubular pile, it is a plurality of the stereoplasm tubular pile is located side by side in the foam concrete protective screen, the outer wall of stereoplasm tubular pile is equipped with the flank, and is adjacent the flank overlap joint of stereoplasm tubular pile is in the same place, the material of stereoplasm tubular pile with the material of foam concrete protective screen is different.

Above-mentioned scheme provides a vibration isolation protective screen, is equipped with a plurality ofly in the foam concrete protective screen that is formed by foam concrete the stereoplasm tubular pile is a plurality of the stereoplasm tubular pile sets up side by side and has both sides wing overlap joint to be in the same place between the adjacent stereoplasm tubular pile to one inside steel matter protective screen has further been formed. The vibration isolation barrier is disposed between a vibration source and a building foundation, and vibrations generated by the vibration source are attenuated a plurality of times when passing through the vibration isolation barrier. The different materials have larger impedance ratio, and vibration is greatly attenuated when being transmitted from one material to another material, so that the vibration reduction effect is finally achieved. The vibration needs to sequentially pass through the rock-soil body → the foam concrete → the steel → the cavity → the steel → the foam concrete → the rock-soil body, and through multiple attenuation, the propagation of vibration is effectively weakened, and the vibration isolation effect is improved. Compared with the conventional cement concrete, the foam concrete is of a porous light structure, has a better vibration energy absorption effect and is lower in manufacturing cost.

In one embodiment, the foam concrete barrier is formed by mutually engaging a plurality of foam concrete piles, and each foam concrete pile is provided with the rigid pipe pile.

In one embodiment, the occlusion amount between the adjacent foam concrete piles is 150 mm-300 mm.

In one embodiment, the outer diameter of the rigid pipe pile is not greater than half of the outer diameter of the foamed concrete pile.

In one embodiment, the outer diameter of the foam concrete pile is 600 mm-1200 mm, and the outer diameter of the hard pipe pile is 300 mm-600 mm.

In one embodiment, a sealing plate is arranged at the top of the hard tubular pile and used for sealing the cavity in the hard tubular pile.

In one embodiment, the plate thickness of the sealing plate is consistent with the thickness of the pile wall of the hard pipe pile, and the thickness of the pile wall of the hard pipe pile is 4-12 mm.

In one embodiment, the pile bottom of the hard pipe pile is at least 500mm away from the bottom of the foam concrete barrier;

and/or the pile bottom of the hard tubular pile is of a conical structure, and the cone angle of the conical structure is 30-60 degrees.

In one embodiment, the overlapping degree of the side wings of two adjacent hard tubular piles is not less than 50-100 mm.

A vibration isolation barrier construction method comprises the following steps:

s1, sequentially constructing a plurality of foam concrete piles along the arrangement direction of the vibration isolation barrier, wherein the adjacent foam concrete piles are mutually meshed;

s2, driving the hard pipe pile into the first foam concrete pile after the initial setting and before the final setting of the plurality of foam concrete piles without the hard pipe piles;

s3, after the hard tubular pile is driven, continuously driving the next foam concrete pile along the arrangement direction of the vibration isolation barrier, wherein the foam concrete pile is occluded with the last foam concrete pile;

the steps S2 and S3 are repeated.

The scheme provides a vibration isolation barrier construction method, wherein the hard tubular pile is driven into the foam concrete pile after the initial setting and before the final setting of the foam concrete pile, then the next foam concrete pile is arranged, and the steps are repeated in sequence to finally form the vibration isolation barrier. In order to allow the foam concrete piles to be engaged with each other, the rigid pipe piles are delayed from the foam concrete piles by at least one construction, that is, when the rigid pipe piles are driven into one foam concrete pile, at least the next foam concrete pile corresponding to the foam concrete pile is constructed. The vibration isolation barrier manufactured by the construction method has the characteristics of good vibration isolation effect and lower manufacturing cost.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a longitudinal cross-sectional view of the vibration isolation barrier of the present embodiment in an environment of use;

FIG. 2 is a top view of the vibration isolation barrier according to the embodiments;

FIG. 3 is a top view of a unit formed by two hard tube piles;

fig. 4 is a sectional view of the hard tube pile according to the embodiment;

fig. 5 is a flowchart illustrating a method of constructing a vibration isolation barrier according to this embodiment;

fig. 6 is a flowchart illustrating a method of constructing a vibration isolation barrier according to another embodiment.

Description of the reference numerals:

10. a vibration isolation barrier; 11. a foam concrete barrier; 111. foam concrete piles; 12. hard tubular piles; 121. a side wing; 1211. sinking; 122. closing plates; 123. a tapered structure; 20. a vibration source; 30. a building is provided.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, the present application relates generally to a vibration isolation barrier 10, wherein the vibration isolation barrier 10 is constructed between a vibration source 20 and a building 30 to be protected, and is used for damping vibration transmitted from the vibration source 20. In particular, buildings 30 such as schools, hospitals and precision instrument factories have strict requirements for vibration reduction, and multiple rows of vibration isolation piles are generally required to achieve such high vibration isolation effect, which results in high construction cost.

Based on this, the present application provides a vibration isolation barrier 10, as shown in fig. 1 and 2, the vibration isolation barrier 10 includes a foam concrete barrier 11 and a plurality of hard pipe piles 12. A plurality of the hard pipe piles 12 are arranged side by side in the foam concrete barrier 11. The outer wall of the hard pipe pile 12 is provided with a side wing 121, and the side wings 121 of the hard pipe piles 12 are connected together in an overlapping manner. The material of the hard tubular pile 12 is different from that of the foam concrete barrier.

The vibration isolation barrier 10 that above-mentioned scheme provided is equipped with a plurality ofly in the foam concrete barrier 11 that is formed by foam concrete stereoplasm tubular pile 12, it is a plurality of stereoplasm tubular pile 12 sets up side by side, and has both sides wing 121 overlap joint together between the adjacent stereoplasm tubular pile 12 to one inside stereoplasm material barrier has further been formed. This hard material barrier is different from the foam concrete barrier 11 in that vibration is transmitted from one to the other, and vibration damping effect occurs based on the resistance ratio of different material members. The vibration generated by the vibration source 20 is attenuated several times while passing through the vibration isolation barrier 10. The different materials have larger impedance ratio, and vibration is greatly attenuated when being transmitted from one material to another material, thereby finally achieving the effect of vibration reduction.

Specifically, the hard tubular pile 12 may be a steel pipe pile. The material of the side wings 121 is the same as that of the hard tubular pile 12. The wave impedance ratio between the rock-soil body and the foam concrete is 0.5-15, and the wave impedance ratio between the foam concrete and the steel is 0.006-0.012. Vibration need pass through the ground body → foam concrete → steel → cavity → steel → foam concrete → the ground body in proper order in this application, through multiple decay, effectively weakens the propagation of vibration, promotes the vibration isolation effect. Compared with the conventional cement concrete, the foam concrete is a porous light structure, has better vibration energy absorption effect and lower manufacturing cost.

Specifically, in some embodiments, as shown in fig. 2, the foamed concrete barrier 11 is formed by a plurality of foamed concrete piles 111 engaged with each other. The rigid tubular pile 12 is disposed in each of the foam concrete piles 111.

The foam concrete pile 111 of mutual interlock need not set up the steel reinforcement cage, and with hard tubular pile 12 forms mixed structure, has better rigidity, and bearing capacity is higher, can regard as zero hour excavation supporting to use, has the stagnant water function.

And the side wings 121 between the adjacent hard tubular piles 12 are overlapped together, and each hard tubular pile 12 and the side wing 121 form a waterproof curtain with a better waterproof function together.

Alternatively, in other embodiments, the foam concrete barrier 11 is a wall structure formed by foam concrete, and a plurality of the rigid pipe piles 12 are disposed in the wall structure.

It should be further noted that, when the foam concrete barrier 11 is formed by mutually engaging a plurality of the foam concrete piles 111, the rigid pipe piles 12 of adjacent foam concrete piles 111 are overlapped by the side wings 121 of the rigid pipe piles 12 during the construction process, so that the construction of the foam concrete piles 111 is advanced by at least one rigid pipe pile 12. In other words, when driving a rigid pipe pile 12 into a foamed concrete pile 111, the adjacent foamed concrete pile 111 engaged with the foamed concrete pile 111 is constructed and is not yet solidified.

More specifically, in one embodiment, the engagement amount between adjacent foam concrete piles 111 is 150mm to 300 mm.

The engagement amount in this application refers to the overlapping length of two engaged piles in the radial direction, as shown in H1 in fig. 2.

In some embodiments, the foamed concrete pile 111 has an outer diameter of 600mm to 1200 mm. The pile length of the foam concrete pile 111 is 10 m-30 m.

The outer diameter of the hard tubular pile 12 is 300-600 mm.

In order to ensure the vibration reduction effect of the foam concrete material, the outer diameter of the hard tubular pile 12 is not more than half of the outer diameter of the foam concrete pile 111.

As shown in fig. 1, the pile bottom of the hard pipe pile 12 is at least 500mm away from the bottom of the foam concrete barrier 11.

Specifically, the pile bottom of the hard pipe pile 12 is at least 500mm away from the pile bottom of the foam concrete pile 111.

As shown in fig. 2 and 4, in some embodiments, the top of the rigid tube pile 12 is provided with a sealing plate 122 for sealing the cavity in the rigid tube pile 12. Due to the existence of the cavity in the hard tubular pile 12, vibration needs to sequentially pass through the hard material → the cavity → the hard material, and the vibration reduction effect is improved. The closing plate 122 closes the top opening of the cavity to prevent debris from entering therein.

Further, as shown in fig. 1 and 4, the bottom of the hard tubular pile 12 is a tapered structure 123, and the taper angle of the tapered structure 123 is 30 ° to 60 °. So that the rigid pipe pile 12 is pressed into the foam concrete pile 111. Although the foam concrete pile 111 is not completely solidified when the hard pipe pile 12 is pressed in, since the pile bottom of the hard pipe pile 12 is designed to be tapered in order to reduce resistance during pile driving since the pile is formed in a prototype.

Further specifically, the thickness of the pile wall of the hard tubular pile 12 is 4 mm-12 mm.

The plate thickness of the closing plate 122 is preferably consistent with the thickness of the pile wall of the rigid tubular pile 12.

Further, in some embodiments, as shown in fig. 2 and 3, the overlap ratio H2 of the overlapping part of the side wings 121 of two adjacent hard tube piles 12 is not less than 50mm to 100 mm. The overlapping degree of the two flanks 121 is the length of the overlapped part in the direction of the interval between the two hard tube piles 12, as shown in fig. 2 by H2.

The thickness of the side wing 121 can be consistent with the thickness of the pile wall of the hard pipe pile 12, or the thickness of the side wing 121 is larger than the thickness of the pile wall of the hard pipe pile 12.

It should be noted that, as shown in fig. 4, the length of the shoulder 121 in the axial direction of the hard tube pile 12 is the same as the axial length of the other part of the hard tube pile 12 except the pile bottom conical structure. The side wings 121 are plate-shaped structures, the length direction of the plate-shaped structures is the axial direction of the hard tubular piles 12, and the width direction of the plate-shaped structures is the spacing direction of the two hard tubular piles 12. The overlapping degree H2 of the two side wings 121 is the overlapping length of the two side wings 121 in the width direction.

As shown in FIG. 3, one of the two wings 121 is recessed 1211 along the thickness direction of the wing 121, and the other is spliced in the recess 1211.

The positions of the two side wings 121 which are overlapped together adopt concave-convex matching, so that the two side wings are matched more tightly, the rigidity is higher, and the vibration isolation capability is stronger.

During construction, the hard tube pile 12 arranged later is moved in the axial direction relative to the hard tube pile 12 arranged earlier, the overlapping length of the two side wings 121 in the axial direction of the hard tube pile 12 is gradually increased during the movement, and the overlapping ratio H2 between the two side wings 121 is determined from the moment when the pile is driven. In order to ensure that the two side wings 121 do not interfere with each other in the axial direction of the hard pipe pile 12 during pile driving, the protrusion and the groove in the concave-convex matching structure are preferably arranged along the axial direction of the hard pipe pile 12. When piling, the groove (or protrusion) of the side wing 121 on the hard pipe pile 12 arranged at the back is opposite to the end of the protrusion (or groove) of the side wing 121 on the adjacent hard pipe pile 12, and then the force is applied to the hard pipe pile 12 along the longitudinal direction, so that the hard pipe pile 12 is gradually inserted into the foamed concrete pile 111.

Further, in another embodiment, as shown in fig. 5, there is provided a method for constructing the vibration isolation barrier 10, including the steps of:

s1, sequentially constructing a plurality of foam concrete piles 111 along the arrangement direction of the vibration isolation barrier 10, wherein the adjacent foam concrete piles 111 are mutually meshed;

s2, driving the rigid pipe pile 12 into the first foam concrete pile 111 after the initial setting and before the final setting of the plurality of foam concrete piles 111 which are not driven into the rigid pipe pile 12;

s3, after the hard pipe pile 12 is driven, continuously driving a next foam concrete pile 111 along the arrangement direction of the vibration isolation barrier 10, and engaging the foam concrete pile 111 with the last foam concrete pile 111;

the steps S2 and S3 are repeated.

According to the construction method of the vibration isolation barrier 10, the rigid tubular pile 12 is driven into the foam concrete pile 111 after initial setting and before final setting, then the next foam concrete pile 111 is arranged, and the steps are repeated in sequence, so that the vibration isolation barrier 10 is finally formed. The vibration isolation barrier 10 manufactured by the construction method has the characteristics of good vibration isolation effect and low manufacturing cost.

In order to allow the foam concrete piles 111 to be engaged with each other, the rigid pipe pile 12 is delayed from the foam concrete pile 111 by at least one construction. In other words, when the rigid pipe pile 12 is driven into one foamed concrete pile 111, at least the next foamed concrete pile 111 corresponding to the foamed concrete pile 111 is constructed.

For example, in step S1, three foam concrete piles 111 are sequentially formed in the arrangement direction of the vibration isolation barriers 10; in step S2, the rigid tubular pile 12 is driven into the first foamed concrete pile 111, and two foamed concrete piles are provided after the first foamed concrete pile 111; this foamed concrete pile 111 newly constructed in step S3 is the fourth foamed concrete pile 111.

Here, the initial setting and the pre-final setting of the foam concrete pile 111 refer to when the foam concrete pile 111 has a certain shape but is not completely set. At this time, the rigid pipe pile 12 may be pressed into the foam concrete pile 111, and the foam concrete may be pressed during the pressing.

The first foamed concrete pile 111 in the step S2 is the first foamed concrete pile 111 among the plurality of foamed concrete piles 111 that are not driven into the rigid pipe pile 12, counted in the arrangement direction of the vibration isolation barrier 10. In repeating the steps S2 and S3, the hard pipe piles 12 driven in sequence are sequentially arranged in the arrangement direction of the vibration isolation barrier 10.

Further, in one embodiment, the step of specifically constructing the foamed concrete pile 111 includes:

forming holes in the rock-soil mass, wherein the aperture of each formed hole is set according to the outer diameter of the foam concrete pile 111 to be formed;

and pouring foam concrete into the formed holes.

Specifically, the mixing ratio of the foam and the concrete in the foam concrete is adjusted according to the vibration isolation requirement. The aperture of the formed hole is consistent with the outer diameter of the foam concrete pile 111 to be formed.

Specifically, the hole forming in the rock-soil body can be realized by drilling in the rock-soil body by using a long spiral drilling machine or by forming a hole by using a rotary digging pile machine.

After the holes are formed, sediments in the formed holes can be further cleaned, so that the thickness of the sediments is not more than 200 mm.

The depth of the formed hole or the length of the foam concrete pile 111 may be set according to the distance between the vibration source 20 and the ground. Preferably, the lower end of the foam concrete pile 111 is located below the vibration source 20.

Further, when the hard pipe pile 12 is driven into the foamed concrete pile 111, the side wings 121 on the outer wall of the hard pipe pile 12 need to be aligned with the side wings 121 on the adjacent hard pipe pile 12, so that the two side wings 121 are overlapped together.

After the rigid tubular pile 12 is driven into the foam concrete pile 111, a step of arranging a closing plate 122 on the pile top of the rigid tubular pile 12 is further included. Of course, the cover plate 122 may be disposed on the top of the rigid tubular pile 12 before the rigid tubular pile 12 is driven into the foamed concrete pile 111.

Further, in another embodiment, as shown in fig. 6, the method for constructing the vibration isolation barrier 10 includes the steps of:

assembling at least two hard tubular piles 12 and the side wings 121 together according to the structural characteristics to form a prefabricated part;

the prefabricated elements are driven into the foam concrete barrier 11.

Further, the sealing plate 122 is arranged on the top of the hard tubular pile 12 in the prefabricated part.

Further specifically, the assembling at least two hard tube piles 12 and the side wings 121 together according to the structural features mentioned above to form a prefabricated part specifically includes the following steps:

arranging at least two hard pipe piles 12 side by side, and overlapping the side wings 121 on the adjacent hard pipe piles 12 together to form the prefabricated part.

In order to keep the shape of the prefabricated member stable, the overlapped parts of the two adjacent side wings 121 are clamped together, so that the hard tube piles 12 and the side wings 121 are connected and fixed together.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (10)

1. A vibration isolation barrier, comprising:

a foam concrete barrier;

a plurality of stereoplasm tubular pile, it is a plurality of the stereoplasm tubular pile is located side by side in the foam concrete protective screen, the outer wall of stereoplasm tubular pile is equipped with the flank, and is adjacent the flank overlap joint of stereoplasm tubular pile is in the same place, the material of stereoplasm tubular pile with the material of foam concrete protective screen is different.

2. The vibration isolation barrier according to claim 1, wherein the foamed concrete barrier is formed by a plurality of foamed concrete piles, each of which is provided with the hard pipe pile, being engaged with each other.

3. The vibration isolation barrier of claim 2, wherein the engagement amount between adjacent foam concrete piles is 150mm to 300 mm.

4. The vibration isolation barrier of claim 2, wherein the outer diameter of the hard pipe pile is not more than half of the outer diameter of the foamed concrete pile.

5. The vibration isolation barrier according to claim 4, wherein the foamed concrete pile has an outer diameter of 600mm to 1200mm, and the hard pipe pile has an outer diameter of 300mm to 600 mm.

6. The vibration isolation barrier of claim 1, wherein the top of the hard pipe pile is provided with a sealing plate for sealing the cavity in the hard pipe pile.

7. The vibration isolation barrier of claim 6, wherein the plate thickness of the sealing plate is consistent with the thickness of the pile wall of the hard pipe pile, and the thickness of the pile wall of the hard pipe pile is 4-12 mm.

8. The vibration isolation barrier of claim 1, wherein the pile bottom of the hard pipe pile is at least 500mm from the bottom of the foam concrete barrier;

and/or the pile bottom of the hard tubular pile is of a conical structure, and the cone angle of the conical structure is 30-60 degrees.

9. The vibration isolation barrier according to any one of claims 1 to 8, wherein the overlapping degree of the side wings of two adjacent hard pipe piles is not less than 50mm to 100 mm.

10. A vibration isolation barrier construction method is characterized by comprising the following steps:

s1, sequentially constructing a plurality of foam concrete piles along the arrangement direction of the vibration isolation barrier, wherein the adjacent foam concrete piles are mutually meshed;

s2, driving the hard pipe pile into the first foam concrete pile after the initial setting and before the final setting of the plurality of foam concrete piles without the hard pipe piles;

s3, after the hard tubular pile is driven, continuously driving the next foam concrete pile along the arrangement direction of the vibration isolation barrier, wherein the foam concrete pile is occluded with the last foam concrete pile;

the steps S2 and S3 are repeated.

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