A small elastic structure for shock absorption and load dissipation of inner wall of high slope pile hole and its construction method

Abstract

The present invention discloses a small elastic structure for shock absorption and load elimination of the inner wall of a high-slope bored pile and a construction method thereof. The small elastic structure comprises a concrete retaining wall, a wooden beam, an expansion bolt, a polystyrene board, and a fixing rib. Two polystyrene boards are point-bonded on the inner wall of the concrete retaining wall. The polystyrene board is a semi-circular ring structure. The inside of the polystyrene board is embedded with a wooden beam. Two fixing ribs are fixedly installed on the inner wall of the polystyrene board. The polystyrene board, the fixing rib, and the wooden beam are fixedly connected together by expansion bolts. The expansion bolts extend into the concrete retaining wall. The present invention has a reliable structure, guaranteed quality and safety, simple and efficient technology, simple and easy operation in on-site construction, low difficulty in purchasing materials, wide application range, and can meet design and specification requirements.

Description

Technical Field

[0001] The invention relates to the technical field of pile bore load relief in construction engineering, and in particular to a small elastic structure for shock absorption and load relief of the inner wall of a pile bore with a high slope and a construction method thereof. Background Art

[0002] In construction projects, bored pile construction is often required in the upper area of ​​high slopes, especially in mountainous landforms. Under adverse conditions such as earthquakes and strong winds, buildings vibrate within a certain range due to horizontal loads, but the vibrations of buildings and slopes are not synchronized, which can easily cause disturbances to high slopes and even cause collapse accidents. To avoid the above situation, a shock-absorbing and load-dissipating structure needs to be set on the inner wall of the bored pile to reduce the disturbance of the bored pile to the slope and ensure the safety of the structure and slope. However, the existing technology mostly relies on bored pile wall protection to absorb loads, but due to its large rigidity, the effect is not ideal. Summary of the invention

[0003] In order to overcome the above technical problems, the purpose of the present invention is to provide a small elastic structure for shock absorption and load relief on the inner wall of a high slope pile hole and a construction method thereof, so as to solve the difficulty in setting the shock absorption and load relief structure on the inner wall of the pile hole and overcome the shortcomings of the prior art.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A small elastic structure for shock absorption and load dissipation of the inner wall of a high-slope bored pile comprises a concrete retaining wall, a wooden beam, expansion bolts, a polystyrene board, fixing ribs, a wooden beam groove, a reserved small groove, and a reserved bolt eye. Two polystyrene boards are glued to the inner wall of the concrete retaining wall. The polystyrene board is a semi-circular ring structure. Wooden beams are embedded and installed inside the polystyrene boards. Two fixing ribs are fixedly installed on the inner wall of the polystyrene board. The polystyrene board, fixing ribs, and wooden beams are fixedly connected together by expansion bolts. The expansion bolts extend into the concrete retaining wall.

[0006] As a further solution of the present invention: the polystyrene board is provided with upper, middle and lower wooden beam grooves at equal distances, the width of the middle wooden beam groove is twice that of the upper and lower wooden beam grooves; the slots are used for placing wooden beams.

[0007] As a further solution of the present invention: the fixing rib is in a half-circle ring shape, and two fixing ribs are fixed by welding.

[0008] As a further solution of the present invention: the wooden beams are arranged at intervals of 90 degrees along the inner wall of the concrete retaining wall, and the wooden beams are provided with reserved bolt eyes, which are adapted to expansion bolts.

[0009] As a further solution of the present invention: a reserved small groove is opened between the wooden beam and the polystyrene board, and the fixing rib is wedged into the reserved small groove.

[0010] As a further solution of the present invention: a construction method of a small elastic structure for shock absorption and load dissipation on the inner wall of a high slope pile hole, comprising the following steps:

[0011] Step 1: Prepare the installation materials for the shock-absorbing and load-relieving structure, wooden beams, polystyrene boards, and open wooden beam grooves in the polystyrene boards;

[0012] Step 2: Use expansion bolts to install the wooden keel on the inner wall of the pile concrete retaining wall, and set one every 90 degrees along the inner wall of the pile concrete retaining wall;

[0013] Step 3: glue the polystyrene board on the inner wall of the pile concrete retaining wall, and install a half circle along the inner wall of the pile concrete retaining wall;

[0014] Step 4: Install a half circle of annular fixing ribs to fix the half circle of polystyrene board that has been glued;

[0015] Step 5: glue the remaining half circle of polystyrene board to the inner wall of the pile concrete retaining wall, and install the remaining half circle of annular fixing ribs;

[0016] Step 6: Weld the two half-circle fixing ribs into a whole;

[0017] Step 7: Complete the installation of the shock-absorbing and load-relieving structure within the remaining height range in the same manner as above.

[0018] As a further solution of the present invention: the polystyrene board is point-bonded with polymer mortar, with no less than four point bonding points for a single board; the point bonding installation starts close to the wooden beam keel, and the installation is completed in a half circle.

[0019] As a further solution of the present invention: the fixing bars are made of grade 3 steel with a diameter of 10 mm, bent into a semicircle, with a length equal to half the circumference of the pile concrete retaining wall, and should be wedged into the small grooves reserved by the wooden beams and polystyrene boards during installation.

[0020] The beneficial effects of the invention are: solving the construction difficulties of the inner wall shock absorption and load relief structure. The invention has a reliable structure, guaranteed quality and safety, simple and efficient technology, simple and easy on-site construction, low difficulty in purchasing materials, wide application, and can meet design and specification requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the internal structure of the small elastic structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the wooden beam structure in the present invention;

[0024] Figure 3It is a schematic diagram of the cross-sectional structure of the wooden beam in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the polystyrene board in the present invention;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the polystyrene board in the present invention.

[0027] In the figure: 1. Concrete wall retaining; 2. Wooden beam; 3. Expansion bolt; 4. Polystyrene board; 5. Fixing reinforcement; 6. Wooden beam groove; 7. Reserved small groove; 8. Reserved bolt eye. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-5 As shown, a small elastic structure for shock absorption and load dissipation of the inner wall of a high-slope bored pile comprises a concrete retaining wall 1, a wooden beam 2, an expansion bolt 3, a polystyrene board 4, a fixing rib 5, a wooden beam groove 6, a reserved small groove 7, and a reserved bolt eye 8. Two polystyrene boards 4 are glued on the inner wall of the concrete retaining wall 1. The polystyrene boards 4 are of a semi-circular ring structure. The wooden beam 2 is embedded and installed inside the polystyrene boards 4. Two fixing ribs 5 are fixedly installed on the inner wall of the polystyrene boards 4. The polystyrene boards 4, the fixing ribs 5, and the wooden beam 2 are fixedly connected together by the expansion bolts 3. The expansion bolts 3 extend into the concrete retaining wall 1.

[0030] The polystyrene board 4 is provided with upper, middle and lower three wooden beam grooves 6 at equal distances, and the width of the middle wooden beam groove 6 is twice that of the upper and lower wooden beam grooves 6; the slots 6 are used to place wooden beams 2.

[0031] The fixing ribs 5 are in the shape of a half-circle ring, and two fixing ribs 5 are fixed by welding.

[0032] The wooden beams 2 are arranged at intervals of 90 degrees along the inner wall of the concrete retaining wall 1 . The wooden beams 2 are provided with reserved bolt eyes 8 , and the reserved bolt eyes 8 are adapted to the expansion bolts 3 .

[0033] A reserved small groove 7 is provided between the wooden beam 2 and the polystyrene board 4 , and the fixing rib 5 is wedged into the reserved small groove 7 .

[0034] A construction method for a small elastic structure for shock absorption and load dissipation on the inner wall of a high slope bored pile comprises the following steps:

[0035] Step 1: prepare the installation materials of the shock-absorbing and load-relieving structure, the wooden beam 2, the polystyrene board 4, and open the wooden beam groove 6 in the polystyrene board 4;

[0036] Step 2: Use expansion bolts 3 to install the wooden beam 2 keel on the inner wall of the pile concrete retaining wall 1, and set one every 90 degrees along the inner wall of the pile concrete retaining wall 1;

[0037] Step 3, glue the polystyrene board 4 on the inner wall of the pile concrete retaining wall 1, and install a half circle along the inner wall of the pile concrete retaining wall 1;

[0038] Step 4: Install a half-circle annular fixing rib 5 to fix the half-circle polystyrene board 4 that has been point-bonded;

[0039] Step 5: glue the remaining half circle of polystyrene board 4 to the inner wall of the pile concrete retaining wall 1, and install the remaining half circle of annular fixing ribs 5;

[0040] Step 6: Weld the two half-circle fixing ribs 5 into a whole;

[0041] Step 7: Complete the installation of the shock-absorbing and load-relieving structure within the remaining height range in the same manner as above.

[0042] Use polymer mortar to spot-bond the polystyrene board 4, with no less than four spots for a single board; start spot-bonding installation close to the wooden beam keel, and install half a circle.

[0043] The fixing reinforcement 5 is made of grade 3 steel with a diameter of 10 mm, bent into a semicircle, and has a length equal to half the circumference of the bored pile concrete retaining wall 1. When installed, it should be wedged into the small groove 7 reserved by the wooden beam 2 and the polystyrene board 4.

[0044] Example 1

[0045] Step 1: Material preparation:

[0046] After the bored piles are bored, prepare the construction materials for the load-relieving layer. The dimensions of the wooden beams and polystyrene boards are 1500x50x100mm (length x height x width). They all need to be horizontally grooved for the subsequent installation of fixed reinforcements. The groove dimensions are 10x15mm (width x depth), with one groove opened at a vertical spacing of 750mm, for a total of 3 grooves.

[0047] Step 2: Fix the wooden keel:

[0048] A wooden beam keel is set every 90 degrees along the inner wall of the pile hole, with a total of 4. The expansion bolts used to fix the wooden beam keel are M10, with a spacing of 500mm, and a total of 4 bolts are set.

[0049] Step 3: Glue half a circle of polystyrene board:

[0050] Use polymer mortar to spot-bond the polystyrene board. The polymer mortar should be mixed with construction glue to ensure stable bonding. There should be no less than four spots for a single polystyrene board. Start spot-bonding installation close to the wooden beam keel and install half a circle (i.e. 180 degrees).

[0051] Step 4: Install half circle annular fixing ribs:

[0052] The annular fixing bar is made of grade 3 steel with a diameter of 10mm, bent into a semicircle, and the length is half of the circumference of the inner wall of the hole pile. When installing, it should be wedged into the small groove reserved by the wooden beam and polystyrene board. When wedging the end, pay attention to leave a distance of 5cm to leave the other half of the fixing bar to wedge.

[0053] Step 5: Stick the remaining half circle of polystyrene board:

[0054] Continue gluing the remaining half circle of polystyrene board according to step 3;

[0055] Step 6: Install the remaining half circle of fixing ribs;

[0056] After the other half of the polystyrene board is glued, wedge in the annular fixing ribs, making sure they are aligned with the first half. After installation, weld the two sides of the annular fixing ribs together.

[0057] Step 7: Continue to install the shock-absorbing and load-relieving structures within the remaining height range:

[0058] The subsequent construction is carried out from top to bottom, and the inner wall of the pile hole is completely covered.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the invention or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A small elastic structure for shock absorption and load dissipation of the inner wall of a high slope pile, characterized in that: The invention comprises a concrete retaining wall (1), a wooden beam (2), an expansion bolt (3), a polystyrene board (4), a fixing rib (5), a wooden beam groove (6), a reserved small groove (7), and a reserved bolt eye (8); two polystyrene boards (4) are glued to the inner wall of the concrete retaining wall (1); the polystyrene board (4) is a semi-circular ring structure; wooden beams (2) are embedded and installed inside the polystyrene board (4); two fixing ribs (5) are fixedly installed on the inner wall of the polystyrene board (4); the polystyrene board (4), the fixing rib (5), and the wooden beam (2) are fixedly connected together by the expansion bolt (3); and the expansion bolt (3) extends into the concrete retaining wall (1); The wooden beam (2) and the polystyrene board (4) are both provided with a reserved small groove (7), and the fixing rib (5) is wedged into the reserved small groove (7); The fixing ribs (5) are in the shape of a half ring, and the two fixing ribs (5) are fixed by welding.

2. The small elastic structure for shock absorption and load dissipation of the inner wall of a high slope pile according to claim 1 is characterized in that: The wooden beams (2) are arranged at intervals of 90 degrees along the inner wall of the concrete retaining wall (1), and the wooden beams (2) are provided with reserved bolt eyes (8), which are adapted to the expansion bolts (3).

3. A construction method for a small elastic structure for shock absorption and load dissipation of the inner wall of a high slope bored pile as described in any one of claims 1 to 2, characterized in that: The following steps are involved: Step 1: prepare the installation materials of the shock-absorbing and load-relieving structure, wooden beams (2), polystyrene boards (4), and open wooden beam grooves (6) in the polystyrene boards (4); Step 2: Use expansion bolts (3) to install the wooden beams (2) on the inner wall of the pile concrete retaining wall (1), and set one bolt every 90 degrees along the inner wall of the pile concrete retaining wall (1); Step 3, stick the polystyrene board (4) on the inner wall of the pile concrete retaining wall (1), and install it half a circle along the inner wall of the pile concrete retaining wall (1); Step 4: Install a half-circle annular fixing rib (5) to fix the half-circle polystyrene board (4) that has been point-bonded; Step 5: glue the remaining half circle of polystyrene board (4) on the inner wall of the pile concrete retaining wall (1), and install the remaining half circle of annular fixing ribs (5); Step 6: Weld the two half-circles of fixing ribs (5) into a whole; Step 7: Complete the installation of the shock-absorbing and load-relieving structure within the remaining height range in the same manner as above.

4. The construction method of a small elastic structure for shock absorption and load dissipation of the inner wall of a high slope pile according to claim 3 is characterized in that: The polystyrene board (4) is point-bonded using polymer mortar, with a single polystyrene board (4) having no fewer than four bonding points; the point-bonding installation begins close to the wooden beam (2), and the installation is completed in a half circle.

5. The construction method of a small elastic structure for shock absorption and load dissipation of the inner wall of a high slope pile hole according to claim 3 is characterized in that: The fixing bar (5) is made of grade 3 steel with a diameter of 10 mm, bent into a semicircle, and has a length equal to half the circumference of the pile concrete retaining wall (1). When installed, it should be wedged into the small groove (7) reserved by the wooden beam (2) and the polystyrene board (4).

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