A bored friction pile sleeve for foundation pit enclosure construction

Abstract

The utility model discloses a kind of bored friction pile sleeve for foundation pit enclosure construction, including sleeve body, funnel-shaped mouthpiece is equipped on sleeve body, sleeve outer wall top is equipped with sleeve ring, transparent groove for accommodating colored liquid is arranged around on sleeve ring, scale line for observing liquid level in transparent groove is equipped on transparent groove bottom surface, at least two partition plates for separating space in transparent groove are evenly distributed around sleeve body in transparent groove. The bottom end outer diameter of the transparent groove gradually expands from bottom to top. The utility model can effectively judge the perpendicularity of sleeve.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a drilled interlocking pile sleeve for foundation pit retaining construction. Background Technology

[0002] Drilled interlocking piles refer to a continuous reinforced concrete "pile wall" structure formed by the interlocking circumferences of adjacent rows of piles on a plane, often used for deep foundation pit support. The construction process typically involves: first, constructing a guide wall at the predetermined pile location; then, inserting the interlocking pile casing into the inside of the guide wall; using a full-casing drilling rig to drive the casing to the designed depth; completing soil removal within the casing; next, pouring concrete into the casing; and finally, extracting the casing in sections before the concrete initially sets.

[0003] Existing drilled interlocking pile casings, as described in Chinese Patent No. CN111980018B, determine the verticality of the casing based on a load block and a pendulum ball outside the casing. However, during drilling, the vibration of the rotary drilling rig is transmitted to the casing, causing the load block to shift. Since the load block is not easy to reset after shifting, there may be a phenomenon where the casing vibration causes the load block to shift, but the casing still maintains its verticality after the vibration stops, resulting in misjudgment and affecting construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a drilled interlocking pile casing for foundation pit retaining construction, which can effectively determine the verticality of the casing.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution: A drilled interlocking pile casing for foundation pit retaining construction includes a casing body with a funnel-shaped protective opening. A collar is located at the top of the outer wall of the casing, and a transparent groove for containing a colored liquid is encircled around the collar. The bottom surface of the transparent groove has graduations for observing the liquid level. At least two partition plates are evenly distributed around the casing body within the transparent groove to separate the space inside. The colored liquid is a low-viscosity, high-surface-tension medium. The transparent groove can be made of any existing, shock-resistant transparent material, which will not be elaborated further. The transparent groove is conical in shape. Its function is to determine the verticality of the casing body by observing the difference in position of the colored liquid at the graduations within different areas divided by the partition plates, based on the liquid's ability to quickly recover from vibration, through the partition plates, the transparent groove, and the graduations.

[0006] Furthermore, the outer diameter of the bottom end of the transparent tank gradually increases from bottom to top. This design facilitates the concentrated collection of colored liquid between two adjacent partitions, resulting in a greater depth of the colored liquid within the transparent tank, making it easier to determine liquid level changes.

[0007] Furthermore, the scale lines are concentric multiple rings with their centers located on the axis of the sleeve body and their diameters gradually increasing from the inside out. Their function is to facilitate observation of liquid level changes within the transparent tank through the design of the scale line shape and distribution.

[0008] Furthermore, the collar includes an upper collar nested at the top of the transparent groove and a lower collar nested at the bottom of the transparent groove. Its function is to facilitate the sequential installation of the lower collar, transparent groove, upper collar, and protective sleeve onto the sleeve body from top to bottom, after which the upper and lower collars can be fixed to the sleeve body.

[0009] Furthermore, buffer pads are provided between the upper sleeve and the transparent groove, and between the lower sleeve and the transparent groove. The purpose of these buffer pads is to reduce the vibration transmitted from the sleeve body to the transparent groove, thereby reducing the impact of vibration on the liquid level within the transparent groove.

[0010] Furthermore, the collar also includes a damping ring for direct contact with the casing body. Both the upper and lower collars are connected to the casing body by bolts passing through the damping ring. The damping ring is made of an elastic material, such as rubber. Its function is to effectively reduce the vibration between the collar and the casing body.

[0011] Furthermore, a sealing cap is embedded in the top surface of the transparent tank. Its function is to prevent colored liquid from overflowing from the top surface of the transparent tank.

[0012] Furthermore, the bottom end of the sealing cap is tightly fitted to the top of the partition plate. This prevents liquid from flowing through the partition plate into the adjacent area.

[0013] Furthermore, a liquid distribution plate is connected to the top of the transparent tank and is arranged parallel to the bottom surface of the transparent tank. A ring of evenly distributed isolation strips is positioned between the liquid distribution plate and the bottom of the transparent tank, with an observation cavity between every two adjacent isolation strips for the colored liquid to flow in. The upper and lower ends of the isolation strips are sealed to the liquid distribution plate and the transparent tank, respectively. Its function is to form an observation cavity through the arrangement of the liquid distribution plate and isolation strips. According to the principle of communicating vessels, the liquid level in the observation cavity is the same as the liquid level in the transparent tank. The observation cavity also reduces the surface area of ​​the liquid, minimizing the amplitude of liquid surface vibration and facilitating observation of the liquid level position within the observation cavity.

[0014] Furthermore, the observation cavity is set perpendicular to the scale line, and its width is less than 1 cm. Its function is to minimize the liquid surface area of ​​the observation cavity through its spatial arrangement and size design, thereby reducing the amplitude of liquid surface vibration within the cavity and facilitating the observation of the liquid surface position.

[0015] The beneficial effects of this utility model are: 1. Based on the ability of liquid to quickly recover from vibration, the verticality of the casing body can be judged by the position difference of the colored liquid in the scale line in different areas divided by the partition plate, through the setting of the partition plate, the transparent groove, and the scale line. 2. The design of the outer diameter of the bottom of the transparent tank facilitates the collection of colored liquid between two adjacent partition plates, giving the colored liquid in the transparent tank a greater depth, which makes it easier to judge changes in liquid level. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of Example 1; Figure 2 This is a three-dimensional structural diagram of Example 1 with the sealing cap removed (excluding the sleeve body and the protective opening). Figure 3 This is a three-dimensional structural diagram of Example 1 with the sealing cap and liquid distribution plate removed (excluding the sleeve body and the protective cap). Figure 4 This is a cross-sectional view of the partition plate in Example 1 (excluding the sleeve body and the protective sleeve). Figure 5 This is a cross-sectional view of the isolation strip in Example 1 (excluding the sleeve body and the protective sleeve). Figure 6 This is a cross-sectional view of the observation cavity in Example 1 (excluding the sleeve body and the protective sleeve).

[0017] Reference numerals in the attached drawings: 1. Sleeve body; 2. Protective sleeve; 3. Collar; 301. Upper collar; 302. Lower collar; 303. Shock-absorbing ring; 4. Transparent groove; 5. Scale line; 6. Divider plate; 7. Buffer pad; 8. Sealing cap; 9. Separating plate; 10. Isolation strip; 11. Observation chamber. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 A type of bored interlocking pile casing for foundation pit retaining construction, such as Figure 1 As shown, the device includes a sleeve body 1, a funnel-shaped protective opening 2 on the sleeve body 1, a collar 3 at the top of the outer wall of the sleeve, and a transparent groove 4 for containing colored liquid surrounding the collar 3. The bottom surface of the transparent groove 4 has graduations 5 for observing the liquid level within the transparent groove 4. Figure 2 As shown, four partition plates 6 are evenly distributed around the sleeve body 1 within the transparent groove 4 to separate the space within the transparent groove 4. The axis of the sleeve body 1 lies on the plane of any partition plate 6. Their function is to allow the sleeve body 1 to determine its perpendicularity by observing the positional differences of colored liquid across the different areas divided by the partition plates 6 on the scale lines 5, based on the liquid's ability to quickly recover from vibration.

[0022] Specifically, such as Figure 1 As shown, the outer diameter of the bottom end of the transparent tank 4 gradually increases from bottom to top. Its function is to facilitate the collection of colored liquid between two adjacent partition plates 6 by designing the outer diameter of the bottom end of the transparent tank 4, so that the colored liquid in the transparent tank 4 has a greater depth, making it easier to judge changes in liquid level.

[0023] Specifically, such as Figure 1 As shown, the scale lines 5 are concentric multiple rings with diameters gradually increasing from the inside to the outside. Their function is to facilitate observation of liquid level changes within the transparent tank 4 through the design of the shape and distribution of the scale lines 5.

[0024] Specifically, such as Figure 2 As shown, the collar 3 includes an upper collar 301 nested at the top of the transparent groove 4 and a lower collar 302 nested at the bottom of the transparent groove 4. Its function is to facilitate the sequential installation of the lower collar 302, transparent groove 4, upper collar 301, and protective sleeve 2 onto the sleeve body 1 from top to bottom, and then fix the upper collar 301 and lower collar 302 onto the sleeve body 1.

[0025] Specifically, such as Figure 4As shown, buffer pads 7 are provided between the upper sleeve 301 and the transparent groove 4, and between the lower sleeve 302 and the transparent groove 4. The buffer pad 7 is a U-shaped ring. Its function is to reduce the vibration transmitted from the sleeve body 1 to the transparent groove 4, thereby reducing the impact of vibration on the liquid level in the transparent groove 4.

[0026] Specifically, such as Figure 5 As shown, the collar 3 also includes a damping ring 303 for direct contact with the sleeve body 1. Both the upper collar 301 and the lower collar 302 are connected to the sleeve body 1 by bolts passing through the damping ring 303. The damping ring 303 is made of an elastic material, such as rubber. Its function is to effectively reduce the vibration between the collar 3 and the sleeve body 1 through the damping ring 303.

[0027] Specifically, such as Figure 6 As shown, a sealing cap 8 is embedded in the top surface of the transparent tank 4. Its function is to prevent colored liquid from overflowing from the top surface of the transparent tank 4.

[0028] Specifically, such as Figure 4 As shown, the bottom end of the sealing cap 8 is tightly attached to the top end of the partition plate 6. Its function is to prevent liquid from flowing through the partition plate 6 into the partition area.

[0029] Specifically, such as Figure 5 As shown, a liquid distribution plate 9, parallel to the bottom surface of the transparent tank 4, is connected to the top of the transparent tank 4. Isolation strips 10 are evenly distributed in a ring between the liquid distribution plate 9 and the bottom of the transparent tank 4. An observation cavity 11 for the flow of colored liquid is left between every two adjacent isolation strips 10. The upper and lower ends of the isolation strips 10 are sealed to the liquid distribution plate 9 and the transparent tank 4, respectively. Its function is to form the observation cavity 11 through the arrangement of the liquid distribution plate 9 and the isolation strips 10. According to the principle of communicating vessels, the liquid level in the observation cavity 11 is the same as the liquid level in the transparent tank 4. The arrangement of the observation cavity 11 also reduces the liquid surface area, decreasing the amplitude of liquid surface vibration and facilitating observation of the liquid level position within the observation cavity 11.

[0030] Specifically, such as Figure 6 As shown, the observation cavity 11 is set perpendicular to the scale line 5, and the width of the observation cavity 11 is less than 1 cm. Its function is to minimize the liquid surface area of ​​the observation cavity 11 through the spatial arrangement and size design, thereby reducing the amplitude of liquid surface vibration in the observation cavity 11 and facilitating the observation of the liquid surface position in the observation cavity 11.

[0031] The working principle of this embodiment is explained as follows: The same volume of colored liquid is injected into all areas separated by partition plates 6. During drilling, the vibration of the rotary drilling rig is transmitted to the casing body 1. The vibration of the casing body 1 is damped by the buffer pad 7 and then transmitted to the transparent tank 4, thus minimizing the vibration experienced by the colored liquid in the transparent tank 4.

[0032] When the verticality of the casing changes, the liquid level on the downward-sloping side will rise on scale line 5, while the liquid level on the upward-sloping side will fall on scale line 5. That is, when the average liquid level on either side (i.e., the average value of the liquid level fluctuation range within a fixed time, such as 5 seconds as a fixed time, where the liquid level reaches a high of scale line 5 at the 10th mark and a low of scale line 5 at the 8th mark within 5 seconds, then the average liquid level in these 5 seconds is at scale line 5 at the 9th mark) differs too much from the average liquid level on the opposite side, it is determined that the verticality of the casing has changed.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A drilled interlocking pile casing for foundation pit retaining construction, comprising a casing body (1), wherein the casing body (1) is provided with a funnel-shaped protective opening (2), characterized in that: The top of the outer wall of the sleeve is provided with a collar (3), and a transparent groove (4) for containing colored liquid is provided around the collar (3). A scale line (5) for observing the liquid level in the transparent groove (4) is provided on the bottom surface of the transparent groove (4). At least two partition plates (6) for separating the space inside the transparent groove (4) are evenly distributed around the sleeve body (1) inside the transparent groove (4).

2. The bored interlocking pile sleeve for foundation pit retaining construction according to claim 1, characterized in that: The outer diameter of the bottom end of the transparent groove (4) gradually increases from bottom to top.

3. The bored interlocking pile sleeve for foundation pit retaining construction according to claim 2, characterized in that: The scale line (5) is in the form of concentric multiple rings with the diameter gradually increasing from the inside to the outside.

4. The bored interlocking pile sleeve for foundation pit retaining construction according to claim 1, characterized in that: The collar (3) includes an upper collar (301) nested on the top of the transparent groove (4) and a lower collar (302) nested on the bottom of the transparent groove (4).

5. The bored interlocking pile sleeve for foundation pit retaining construction according to claim 4, characterized in that: A buffer pad (7) is provided between the upper collar (301) and the transparent groove (4) and between the lower collar (302) and the transparent groove (4).

6. The bored interlocking pile sleeve for foundation pit retaining construction according to claim 4, characterized in that: The collar (3) also includes a shock-absorbing ring (303) for direct contact with the sleeve body (1). The upper collar (301) and the lower collar (302) are both connected to the sleeve body (1) by bolts through the shock-absorbing ring (303).

7. The bored interlocking pile sleeve for foundation pit retaining construction according to claim 1, characterized in that: A sealing cap (8) is embedded in the top surface of the transparent groove (4).

8. A drilled interlocking pile sleeve for foundation pit retaining construction according to claim 7, characterized in that: The bottom of the sealing cap (8) is attached to the top of the partition plate (6).

9. A drilled interlocking pile sleeve for foundation pit retaining construction according to claim 2, characterized in that: The top of the transparent tank (4) is connected to a liquid distribution plate (9) that is parallel to the bottom surface of the transparent tank (4). There are uniformly distributed isolation strips (10) in a ring between the liquid distribution plate (9) and the bottom of the transparent tank (4). An observation cavity (11) for colored liquid to flow in is left between every two adjacent isolation strips (10).

10. A drilled interlocking pile sleeve for foundation pit retaining construction according to claim 9, characterized in that: The observation cavity (11) is set perpendicular to the scale line (5), and the width of the observation cavity (11) is less than 1cm.

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