CN218090835U

CN218090835U - Rock-entering construction structure for pipe pile of sidewalk steel trestle

Info

Publication number: CN218090835U
Application number: CN202222188449.8U
Authority: CN
Inventors: 范华猛; 周泽兵; 吴超; 齐建; 张光明
Original assignee: China 19th Metallurgical Corp
Current assignee: China 19th Metallurgical Corp
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2022-12-20
Anticipated expiration: 2032-08-17

Abstract

The utility model belongs to the technical field of road and bridge engineering and specifically relates to an operation simple process, high efficiency, reliable pavement steel trestle tubular pile rock entering construction structure, including supporting beam, be provided with an at least steel-pipe pile along vertical direction on the supporting beam, be provided with the steel pipe in the steel-pipe pile and lead to the chamber, steel-pipe pile bottom sets up on river bed rock layer, and the steel pipe leads to the intracavity and is provided with the impact breaker. The utility model is inserted and beaten for the first time, passes through a mud layer and enters a strong weathering layer; leading the rock stratum to the designed rock-entering depth, and impacting the rock stratum into a duct from the interior of the steel pipe pile to the designed rock-entering depth and removing slag by using an impact drilling machine; performing secondary inserting driving on the steel pipe pile to ensure that the bottom of the steel pipe pile reaches the bottom elevation position of the guide hole channel; graded broken stones are filled from the interior of the steel pipe pile, impact compaction is carried out on the filled broken stones by using a battering ram, a pile body and hole positions are filled into a dense chamber, and the stability of the steel pipe pile foundation is improved. The utility model discloses be particularly useful for among the construction of entering rock of way steel trestle tubular pile.

Description

Tubular pile rock-entering construction structure of sidewalk steel trestle

Technical Field

The utility model belongs to the technical field of road and bridge engineering and specifically relates to a tunnel steel trestle tubular pile rock-entering construction structures.

Background

The highway project in China is continuously in the construction peak situation, wherein a large number of medium and large bridge projects cross rivers and lakes, traffic at two banks is blocked, construction sidewalks cannot directly enter, and pile foundations, bearing platforms and pier column projects of the bridge projects are in rivers or water areas at the edges of the two banks. In order to realize the arrangement of a construction plane, communicate and connect the bridge part in the river and the construction areas on two banks into a whole and realize the guarantee of transportation, the important and key points are to get through the construction sidewalk and the construction platform on the river. Therefore, a construction access steel trestle crossing the river needs to be erected on the river beside the designed bridge to be used as a construction channel penetrating through two banks of the river. The key construction system which is better and how to quickly insert the pipe pile of the steel trestle of the sidewalk into the rock always troubles the construction unit, and the work efficiency is improved, the progress is protected, the investment is saved, and the safety is protected.

The invention patent with application number CN202010151269.5 of patent application number "large-diameter lock-catch steel pipe pile rock-entering construction process" includes the following steps: pre-drilling holes by rotary drilling; making a steel pipe pile; sinking the steel pipe pile to 30cm above the rock surface; rotary drilling a pile core and taking out soil; hammering the down-hole into the rock for 3m; after the pile core is drilled in a rotary drilling manner and soil is taken out, slowly placing the hammer head into the pile core through a drill rod, reversely rotating the down-the-hole hammer in the pile to blow off the residual loose soil layer in the pile, and after the hammer head contacts an inner hoop of the pile and generates a crisp sound, positively rotating to open the wing, and at the moment, fully opening 4-5 air compressors, wherein the air pressure is not less than 1.4Mpa, and the rotating speed is 3-4r/min; the steel pipe pile synchronously follows when the hammer head drills, and when the blown slag is changed into grey rock powder from yellow mud slag and the sinking speed is obviously reduced, the height of the steel pipe pile entering the rock top is recorded until the down-the-hole hammer enters the rock by 3 m. The main process of the patent comprises the following steps: leading the hole first, inserting the steel pipe pile to the rock stratum surface along the hole, blowing and cleaning the hole by secondary leading the hole, and following the steel pipe pile. The scheme comprises the following steps: 1. guiding is carried out twice (holes are easy to misplace, and the process is complicated); 2. the bottom of the steel pipe pile cannot be sealed during secondary hole guiding; 3. and the reinforcing measure and the like of the bottom of the steel pipe pile are not filled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a rock construction structures is gone into to easy operation procedure simple, high-efficient, reliable pavement steel trestle tubular pile is provided.

The utility model provides a technical scheme that its technical problem adopted is: rock construction structures is gone into to bedway steel trestle tubular pile including supporting beam, is provided with an at least steel-pipe pile along vertical direction on the supporting beam, be provided with the steel pipe in the steel-pipe pile and lead to the chamber, the steel-pipe pile bottom sets up on river bed lithosphere, and the steel pipe leads to the intracavity and is provided with and strikes breaker.

Further, a steel pipe pile top bearing beam is arranged at the top of the steel pipe pile, and the steel pipe pile top bearing beam is arranged at the bottom of the supporting cross beam.

Further, the top of the supporting beam is provided with a molded bridge deck.

Furthermore, a percussion drill is arranged on the supporting beam, and the impact crushing device is arranged on the percussion drill.

Furthermore, a funnel is arranged on the impact drilling machine.

Further, the supporting beam is a Bailey beam.

Furthermore, a Bailey beam supporting frame is arranged in the supporting cross beam.

Further, the impact crushing device is an impact hammer.

Further, a steel pipe pile connecting rod system is arranged between the adjacent steel pipe piles.

The utility model has the advantages that: the utility model discloses when the in-service use, fine realization the effect of rock is gone into fast to the pavement steel trestle tubular pile. Namely, the first primary inserting and beating is carried out to penetrate through a mud layer and enter a strong weathering layer; then, guiding the rock stratum to the designed rock-entering depth, and utilizing a percussion drill to perform percussion pore-forming from the inside of the steel pipe pile to the designed rock-entering depth and slag removal; then, performing secondary inserting driving on the steel pipe pile to ensure that the bottom of the steel pipe pile reaches the bottom elevation position of the guide hole channel; and then, graded broken stones are filled from the interior of the steel pipe pile, and impact compaction is carried out on the filled broken stones by using an impact rammer, so that a dense chamber is filled with a pile body and hole sites, and the stability of the steel pipe pile foundation is improved.

The utility model discloses be particularly useful for among the construction of entering rock of way steel trestle tubular pile.

Drawings

Fig. 1 is the design structure section schematic diagram of the steel trestle of the utility model.

Fig. 2 is the utility model discloses a steel trestle steel-pipe pile goes into rock pilot hole sketch map.

Fig. 3 is the utility model discloses a pack sketch map in steel trestle steel-pipe pile.

Fig. 4 is the filling tamping schematic diagram of the steel trestle steel pipe pile of the utility model.

Labeled as: the device comprises a riverbed rock stratum 1, river water 2, a steel pipe pile 3, a steel pipe pile connecting rod system 4, a steel pipe pile top bearing beam 5, a supporting cross beam 6, a Bailey beam supporting frame 7, a formed bridge deck plate 8, a rail 9, an impact drilling machine 10, an impact crushing device 11, a funnel 12 and graded broken stones 13.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, fig. 2, fig. 3, and fig. 4, the pipe pile rock entering construction structure of the temporary road steel trestle comprises a supporting beam 6, at least one steel pipe pile 3 is arranged on the supporting beam 6 along the vertical direction, a steel pipe through cavity is arranged in the steel pipe pile 3, the bottom of the steel pipe pile 3 is arranged on a rock layer 1 of a river bed, and an impact crushing device 11 is arranged in the steel pipe through cavity. And (3) primarily inserting and driving the steel pipe pile 3 for the first time, and enabling the steel pipe pile to enter a rock layer 1 of a river bed in river water for fixing.

In the conventional construction method system for inserting the steel pipe pile after leading the hole, the problem that the pore diameter of the formed hole is larger than the diameter of the pile can cause the situations of drill hole collapse and repeated crushing; in the conventional construction method of guiding holes, filling concrete in water and then planting piles, personnel and tools can enter underwater operation and the like. The conventional construction method has the problems of multiple working procedures, low working efficiency, high cost, environmental pollution and the like. The utility model discloses when in actual use, in order to let the link between steel-pipe pile 3 and supporting beam 6 more firm, preferred following scheme: the top of the steel pipe pile 3 is provided with a steel pipe pile top bearing beam 5, and the steel pipe pile top bearing beam 5 is arranged at the bottom of the supporting cross beam 6. Preferably, a profiled bridge deck 8 is provided on top of said supporting beams 6. Furthermore, a hammer drill 10 can be optionally arranged on the supporting beam 6, and the impact breaking device 11 is arranged on the hammer drill 10. In order to further reduce the weight of the supporting beam 6 while ensuring the stability, it is preferable that the supporting beam 6 is a beret beam. Preferably, a bailey beam support frame 7 is arranged in the support cross beam 6.

In order to facilitate the input of graded crushed stone 13 into the pit which is obtained by the impact crushing device 11 through impact on the rock layer 1 of the river bed, it is preferable that the impact drilling machine 10 is provided with a funnel 12, and the graded crushed stone 13 is input through the funnel 12. Preferably, the crawler crane and the impact drilling machine are adopted to work in a matched mode, and construction propulsion is achieved. And (3) impacting the rock layer of the river bed from the inside of the steel pipe pile 3 to a designed rock-entering depth by using an impact drilling machine 10, and removing slag.

In order to obtain a better impact effect, it is preferred that the impact breaking device 11 is an impact hammer. In order to make the connection between the steel pipe piles 3 more stable, it is preferable that a steel pipe pile connection rod system 4 be provided between the adjacent steel pipe piles 3.

The concrete construction steps are as follows: 1. firstly, implementing primary inserting and driving for the first time, and enabling the steel pipe piles 3 to enter a rock layer 1 of a river bed in river water 2 for fixing; 2. secondly, impacting the river bed rock stratum 1 from the inside of the steel pipe pile 3 by utilizing an impact drilling machine 10 to form a pore channel until the designed rock-entering depth is reached, and removing slag; 3. performing secondary inserting driving of the steel pipe pile 3 to ensure that the bottom of the steel pipe pile reaches the bottom elevation position of the guide hole channel; 4. filling graded broken stones 13 from the interior of the steel pipe pile 3 by using a funnel 12, and impacting and extruding the filled graded broken stones 13 by using an impact hammer to compact the pile body and hole positions so as to ensure the stability of a steel pipe pile foundation; 5. and constructing the steel trestle structure of the sidewalk such as a steel pipe pile connecting rod system 4, a steel pipe pile top bearing beam 5, a Bailey beam support frame, a formed bridge deck 8, a railing 9 and the like on the steel pipe pile 3.

Claims

1. The tubular pile rock-entering construction structure of the steel trestle of the sidewalk is characterized in that: including supporting beam (6), be provided with at least one steel-pipe pile (3) along vertical direction on supporting beam (6), be provided with the steel pipe in steel-pipe pile (3) and lead to the chamber, steel-pipe pile (3) bottom sets up on riverbed rock stratum (1), and the steel pipe leads to the intracavity and is provided with and strikes breaker (11).

2. The pipe pile rock-entering construction structure of the sidewalk steel trestle bridge of claim 1, which is characterized in that: the steel pipe pile is characterized in that a steel pipe pile top bearing beam (5) is arranged at the top of the steel pipe pile (3), and the steel pipe pile top bearing beam (5) is arranged at the bottom of the supporting cross beam (6).

3. The pipe pile rock-entering construction structure of the access road steel trestle of claim 1 or 2, which is characterized in that: and the top of the supporting beam (6) is provided with a molded bridge deck (8).

4. The pipe pile rock-entering construction structure of the sidewalk steel trestle according to claim 3, which is characterized in that: the support beam (6) is provided with a percussion drill (10), and the impact crushing device (11) is arranged on the percussion drill (10).

5. The pipe pile rock-entering construction structure of the sidewalk steel trestle bridge of claim 4, which is characterized in that: the percussion drill (10) is provided with a funnel (12).

6. The pipe pile rock-entering construction structure of the sidewalk steel trestle bridge of claim 3, which is characterized in that: the supporting cross beam (6) is a Bailey beam.

7. The pipe pile rock-entering construction structure of the sidewalk steel trestle according to claim 6, which is characterized in that: a Bailey beam supporting frame (7) is arranged in the supporting cross beam (6).

8. The pipe pile rock-entering construction structure of the sidewalk steel trestle bridge of claim 1 or 2, which is characterized in that: the impact crushing device (11) is an impact hammer.

9. The pipe pile rock-entering construction structure of the sidewalk steel trestle bridge of claim 1 or 2, which is characterized in that: a steel pipe pile connecting rod system (4) is arranged between the adjacent steel pipe piles (3).