CN111576222A - A kind of construction method of steel pipe pile plank road type green road - Google Patents

Abstract

The invention discloses a construction method of a steel pipe pile plank road type green road, which comprises the following steps: S10. sinking a steel pipe pile; S20. setting a bracket on the top of the steel pipe pile; S30. placing a bracket on the support Set up a support system; S40. Pour concrete in the steel pipe piles to form reinforced concrete piles; S50. Set up a template on the support system, bind steel bars, pour concrete to form Bidao beam slabs; S60. Remove the Brackets, support systems and formwork. It can overcome the problems existing in the construction and use of the current traditional prefabricated or cast-in-place reinforced concrete pile plank road, facilitates the pile driving construction, and has less disturbance.

Description

A kind of construction method of steel pipe pile plank road type green road

technical field

The invention is used in the field of green road construction, in particular to a construction method of a steel pipe pile plank road type green road.

Background technique

In the section of the river bank that is blocked by buildings near the river and the land conditions are limited, build a plank road-type blue road for pedestrians and bicycles along the river bank, improve the accessibility and leisure hydrophilicity along the river, and it is a combination of the plank road and the blue road. a technological innovation.

In the prior art, most of the green roads are supported by reinforced concrete prefabricated square piles or pipe piles. The green roads in this structural form occupy a large flood section, and there is a risk of flooding. Moreover, for the river sections with tight shoreline land, it is often impossible to construct on land. For the river sections with high requirements for the protection of old buildings and embankments along the coast, it is also difficult to set up cofferdams and cut off the flow in the water. . In addition, scaffolding needs to be set up from the ground when laying the top structure of the green road, and the reinforced concrete prefabricated square piles or pipe piles and the scaffolding will greatly hinder the riverbed and flood flow.

SUMMARY OF THE INVENTION

The object of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a construction method of a steel pipe pile plank road type green road, which can overcome the current traditional prefabricated or cast-in-place reinforced concrete pile plank road in construction and use, etc. It is convenient for pile driving construction, and the disturbance is smaller.

The technical scheme adopted by the present invention to solve its technical problems is:

A construction method of a steel pipe pile plank road type green road, comprising the following steps:

S10. Drive the steel pipe pile;

S20. A bracket is arranged on the top of the steel pipe pile;

S30. erecting a support system on the bracket;

S40. Concrete is poured in the steel pipe pile to form a reinforced concrete pile;

S50. Set up a template on the support system, bind steel bars, and pour concrete to form Bidao beam slabs;

S60. Remove the bracket, support system and formwork.

In some embodiments, the bracket includes a hoop, the hoop is fastened on the top of the steel pipe pile, and the hoop is provided with a plurality of supporting structures in the circumferential direction.

In some embodiments, the hoop includes a plurality of hoop assemblies, the plurality of hoop assemblies are connected, and internally define a hoop opening for gripping the steel pipe pile.

In some embodiments, the hoop assembly includes an arc-shaped plate, two ends of the arc-shaped plate are provided with radial ear seats, and the adjacent hoop assemblies are connected by fasteners on the ear seats , the fastener can adjust the distance between the adjacent ear seats of the hoop assembly.

In some embodiments, the support structure includes ribs welded on the outer peripheral surface of the arc-shaped plate, and the top end surfaces of a plurality of the ribs are flush.

In some embodiments, the support system includes

A beam, the beam is horizontally erected on the brackets of the adjacent steel pipe piles along the green road;

longitudinal beams, the longitudinal beams are erected on the transverse beams along the longitudinal direction of the green road;

A formwork platform is laid on top of the stringers.

In some embodiments, along the longitudinal direction of the green road, two beams clamp the top of the steel pipe pile.

In some embodiments, the steel pipe pile adopts vibratory pile driving or bored pile driving, and the top nozzle of the steel pipe pile is shielded after the steel pipe pile driving is completed.

In some embodiments, it also includes

S51. Install safety railings on both sides of the green road and pave the platform surface.

In some embodiments, in step S10, the block stone obstacle on the river bed surface at the pile position is removed, and the steel pipe pile is sunk on the water floating barge; it also includes S61. Dredging the river bed and expanding the flooding section.

One of the technical solutions in the above-mentioned technical solutions has at least one of the following advantages or beneficial effects:

1. In the section of the river bank that is blocked by buildings near the river and the land conditions are limited, a plank road for pedestrians and bicycles along the river bank is built, which improves the accessibility and leisure hydrophilicity along the river.

2. In the face of the river bank where the section of the river channel is tight, but there is a need for plank road construction, compared with the traditional plank road of reinforced concrete prefabricated square piles or pipe piles, the steel pipe pile has a small diameter, a compact structure, and occupies a flood-carrying section. Small; steel pipe piles have a certain reinforcement effect on the stability of the river bank. After the river bed is properly dredged, the flood section of the river channel is enlarged, which reduces the flood risk.

3. In the river sections with tight shoreline land, it is often impossible to construct on land, and the requirements for the protection of old buildings and embankments along the coast are very high. For water construction, there is no cofferdam, continuous flow, small pile diameter, small soil squeeze effect, little disturbance to the embankment, and good safety.

4. The top of the pile can be used to set up brackets, support systems, and formwork, and there is no need to set up scaffolding from the ground. During construction, there is no additional impact on the river bed and flooding, and the formwork is more convenient.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of a pile top bracket and a support system according to an embodiment of the present invention;

Fig. 2 is the structural schematic diagram of the embodiment shown in Fig. 1 under the relaxed state of the hoop;

Figure 3 is a sectional view at A-A in Figure 2;

4 is a schematic diagram of a formwork platform and a pile filled with concrete according to an embodiment of the present invention;

5 is a schematic structural diagram of a hoop-fastened state according to an embodiment of the present invention;

Fig. 6 is the structural schematic diagram of Bidao beam-slab according to an embodiment of the present invention;

7 is a schematic structural diagram of a plank road-type green road after the construction of one embodiment of the present invention is completed.

Detailed ways

This part will describe the specific embodiments of the present invention in detail, and the preferred embodiments of the present invention are shown in the accompanying drawings. Each technical feature and overall technical solution of the invention should not be construed as limiting the protection scope of the invention.

In the present invention, if there is a description of a direction (up, down, left, right, front and rear), it is only for the convenience of describing the technical solution of the present invention, rather than indicating or implying that the technical features referred to must have specific characteristics Orientation, construction and operation in a particular orientation, and therefore should not be construed as limiting the invention.

In the present invention, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding", etc. are understood as not including this number; "above", "below" and "within" " etc. are understood to include the original number. In the description of the present invention, if it is described that "first" and "second" are only used for the purpose of distinguishing technical features, it should not be understood as indicating or implying relative importance or implying the number of indicated technical features or Implicitly indicates the order of the indicated technical features.

In the present invention, unless otherwise clearly defined, words such as "set", "install" and "connect" should be understood in a broad sense, for example, it may be directly connected or indirectly connected through an intermediate medium; it may be a fixed connection or a The detachable connection can also be integrally formed; it can be a mechanical connection or an electrical connection or can communicate with each other; it can be the internal communication between the two elements or the interaction relationship between the two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solutions.

An embodiment of the present invention provides a construction method of a steel pipe pile plank road-type green road, comprising the following steps:

S10. Referring to Figure 1, remove the block stone obstacles on the river bed surface at the pile position, the pile driving equipment is floated on the water, and the steel pipe pile 1 is piled, and the steel pipe pile 1 is used as one of the main structures of the green road. A plurality of extension directions are arranged, and the present invention adopts the steel pipe pile 1 with a compact structure, instead of the reinforced concrete pile with a larger cross-sectional area, as the supporting structure of the green road; because the steel pipe pile 1 has the characteristics of high strength and small diameter, Used in river bank construction, it not only brings convenience in construction, improves construction efficiency, but also reduces disturbance to the river bank.

S20. Referring to Figure 1, a bracket 2 is provided on the top of the steel pipe pile 1, and the bracket 2 is detachably connected to the steel pipe pile 1;

S30. Referring to FIG. 1, a support system 3 is erected on the support 2, and the support system 3 forms a continuous support structure between a plurality of steel pipe piles 1, and provides a platform and support for construction work such as concrete pouring, so as to make further steel pipe concrete Pouring, plank road beam and slab pouring construction, without affecting the flood flow of the river;

S40. Referring to Fig. 4 and Fig. 5, concrete is poured in the steel pipe pile 1 to form a reinforced concrete pile, wherein, through the surface anti-corrosion of the steel pipe pile 1 and the planting of reinforcing bars in the pipe pile and the filling of fine stone concrete, the steel pipe pile 1 is a green road. The durability can be further guaranteed;

S50. Referring to Figure 6, set up a formwork on the support system 3, bind steel bars, and pour concrete to form the Bidao beam slab 4;

S60. Remove the bracket 2, the support system 3 and the formwork to complete the construction.

This technical solution has the following advantages:

1. In the section of the river bank that is blocked by buildings near the river and the land conditions are limited, a plank road for pedestrians and bicycles along the river bank is built, which improves the accessibility and leisure hydrophilicity along the river.

2. In the face of the river bank where the section of the river channel is tight, but there is a need for plank road construction, compared with the traditional plank road with reinforced concrete prefabricated square piles or pipe piles, the steel pipe pile 1 has a small diameter, a compact structure, and a flood-carrying section. The occupation is small; the steel pipe pile 1 has a certain reinforcement effect on the stability of the river bank. After the river bed is properly dredged, the flood section of the river channel is enlarged, which reduces the flood risk.

3. In the river section with tight shoreline land, it is often impossible to construct on land, and the requirements for the protection of old buildings and embankments along the coast are very high. , Water construction, no cofferdam, continuous flow, small pile diameter, small soil squeeze effect, small disturbance to the embankment, and good safety.

4. The top of the pile can be used to set up the bracket 2, the supporting system 3, and the formwork, and there is no need to set up the scaffolding from the ground. During the construction, there is no additional impact on the river bed and flooding, and the formwork is more convenient.

The bracket 2 is detachably connected to the steel pipe pile 1. For example, in some embodiments, referring to FIG. 2 and FIG. 5, the bracket 2 includes a hoop, and the hoop is fastened on the top of the steel pipe pile 1, that is, through the outer circumference of the steel pipe pile. The connection method of the pipe pile 1 is fixed on the pile top of the steel pipe pile 1, the connection is more convenient, and after the construction of the green road is completed, the dismantling is also easier, and it is not affected by the formed green road structure.

2 and 3, the hoop is provided with a plurality of supporting structures 21 in the circumferential direction, the support system 3 is overlapped on the supporting structure 21, and the plurality of supporting structures 21 are distributed along the circumferential direction of the hoop, so that the hoop is in the steel pipe pile 1. The installation direction on the upper has more selectivity, and the construction is more convenient.

The hoop includes a plurality of hoop assemblies. For example, in the embodiment shown in FIG. 2 , the hoop includes two semicircular hoop assemblies. It is understood that more than two hoop assemblies may be provided. A plurality of hoop assemblies are connected, and internally define a hoop opening 22 for holding the steel pipe pile 1 tightly. That is, a plurality of hoop assemblies are connected to form an annular structure, so as to be fastened to the top of the steel pipe pile 1 . After the construction is completed, the plurality of hoop assemblies are loosened and removed from the steel pipe pile 1 .

In some embodiments, referring to FIG. 2 , the hoop assembly includes an arc-shaped plate 23 , two ends of the arc-shaped plate 23 are provided with radial ear seats 24 , and the adjacent hoop assemblies are fastened on the ear seats 24 The fasteners 25 can be connected by bolts, etc. The fasteners 25 can adjust the distance between the ear seats 24 of the adjacent hoop assemblies, so that the hoop can hold the steel pipe pile 1 tightly.

The support structure 21 can be a support column, a support block, a support plate, etc. For example, in some embodiments shown in FIG. 2 and FIG. The steel pipe pile 1 is set in the height direction to make its bearing capacity stronger. The top end faces of the plurality of ribs are flush to provide stable support for the support system 3 .

1, in some embodiments, the support system 3 includes beams 31, longitudinal beams 32 and a formwork platform 33. The beams 31 and longitudinal beams 32 can be I-beams, steel pipe beams, etc. On the bracket 2 of the adjacent steel pipe pile 1; the longitudinal beam 32 is erected on the beam 31 along the longitudinal direction of the green road, and the transverse beam 31 and the longitudinal beam 32 are perpendicular to each other, providing stable support for the formwork platform 33 at the top, and the formwork platform 33 is laid on the longitudinal beam 32 top. Through the formwork platform 33, the concrete pumping pipe is laid, and the fine stone concrete is poured into the steel pipe pile 1, filled with vibrating concrete, and a solid reinforced concrete pile is formed in the steel pipe pile 1, which further increases the strength and durability of the pile foundation. .

In some embodiments, along the longitudinal direction of the green road, two beams 31 clamp the top of the steel pipe pile 1, that is, the beams 31 are erected on both sides of the steel pipe pile 1 to make full use of the support structure 21 provided by the hoop. , and the force is more balanced and the structural stability is higher.

The steel pipe pile 1 adopts vibratory pile driving or drilling pile driving. For example, in some embodiments, the block stone obstacle on the river bed surface at the pile position is removed, the excavator is replaced with a vibrating hammer, and the steel pipe pile 1 is vibrated and sunk on the water floating barge. For piles, if the surrounding buildings are old, bored piles can be used to further reduce the disturbance of piles and ensure the safety of structures along the plank road.

For the sunk steel pipe pile 1, it is necessary to pay attention to the waterproofing of the top of the pile, that is, after the steel pipe pile 1 is sunk, the top nozzle of the steel pipe pile 1 is covered, and the method of covering is not limited. For example, in some embodiments, a plastic bag is used. The method, the mouth of the bag is down, and it is tied tightly to prevent rainwater from pouring in.

In some embodiments, it also includes

S51. Referring to Figure 7, install the safety guard rails 41 on both sides of the green road, and pave the platform surface 42 to improve the safety of the green road.

S61. Dredging the river bed to expand the flood section and reduce the flood risk.

In the description of this specification, a description with reference to the terms "example", "embodiment" or "some embodiments" etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one aspect of the present invention in one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or replacements without departing from the spirit of the present invention, and these equivalent modifications or replacements are included in the claims of the present application. within a limited range.

Claims (10)

1. A construction method of a steel pipe pile channel type pipeline is characterized by comprising the following steps:

s10, sinking the steel pipe pile;

s20, arranging a support on the pile top of the steel pipe pile;

s30, erecting a support system on the support;

s40, pouring concrete in the steel pipe pile to form a reinforced concrete pile;

s50, erecting a template on the support system, binding reinforcing steel bars, and pouring concrete to form a pavement beam slab;

and S60, removing the support, the support system and the template.

2. The construction method of the steel pipe pile stack type pipeline according to claim 1, characterized in that: the support comprises a hoop, the hoop is tightly held on the pile top of the steel pipe pile, and a plurality of supporting structures are arranged on the hoop along the circumferential direction.

3. The construction method of the steel pipe pile stack type pipeline according to claim 2, characterized in that: the hoop comprises a plurality of hoop components which are connected and define a hoop mouth holding the steel pipe pile inside.

4. The construction method of the steel pipe pile stack type pipeline according to claim 3, characterized in that: the hoop component comprises an arc plate, the two ends of the arc plate are provided with lug seats along the radial direction, the hoop component is adjacent to the lug seats and connected through a fastening piece on the lug seats, and the fastening piece can adjust the distance between the lug seats of the hoop component.

5. The construction method of the steel pipe pile stack type pipeline according to claim 4, characterized in that: the supporting structure comprises rib plates welded on the outer peripheral surfaces of the arc-shaped plates, and the top end faces of the rib plates are flush.

6. The construction method of the steel pipe pile stack type pipeline according to claim 1, characterized in that: the support system comprises

The cross beam is transversely erected on the bracket of the adjacent steel pipe pile along the road;

the longitudinal beams are longitudinally erected on the cross beam along the green road;

and the template platform is laid on the top of the longitudinal beam.

7. The construction method of the steel pipe pile stack type pipeline according to claim 6, characterized in that: and the pile top of the steel pipe pile is clamped by two cross beams along the longitudinal direction of the pipeline.

8. The construction method of the steel pipe pile stack type pipeline according to claim 1, characterized in that: the steel pipe pile adopts vibration pile sinking or drilling pile sinking, and the top mouth of pipe of steel pipe pile is shielded to the completion back of steel pipe pile sinking.

9. The construction method of the steel pipe pile stack type pipeline according to claim 1, characterized in that: also comprises

And S51, installing safety protection railings on two sides of the road and paving the platform surface.

10. The construction method of the steel pipe pile stack type pipeline according to claim 1, characterized in that: in the step S10, removing block stone barriers on the river bed surface at the pile position, floating on water, and piling the steel pipe pile; and S61, dredging a river bed and expanding a flood discharge section.

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