Hole mouth device for secant pile row pile all-sleeve protective wall hole forming

Abstract

The utility model discloses a hole mouth device used for occlusive pile row pile all-sleeve protective wall hole forming, which comprises a force unloading panel, two oppositely arranged guide walls placed on an occlusive pile row pile, a plurality of mutually occluded positioning holes formed between the opposite sides of the two guide walls, a through hole formed in the middle of the force unloading panel and used for a steel casing to penetrate through, and a plurality of through holes formed in the middle of the force unloading panel, the through hole is aligned with a positioning hole in the pile position to be constructed; the two insertion pipes are connected to the bottom of the force unloading panel, and the two insertion pipes are inserted into the two positioning holes in the two opposite sides of one positioning hole in a one-to-one correspondence mode; and the multiple anti-falling clamping keys are arranged in the circumferential direction of the penetrating hole at intervals, one ends of the anti-falling clamping keys are installed on the force unloading panel in a turnover mode, and the other ends of the multiple anti-falling clamping keys abut against the outer wall of the steel casing in a pressing mode so as to prevent the steel casing from sliding down. The hole mouth device solves the problem that an existing hole mouth device of the secant pile row pile guide wall is prone to deviation in actual construction.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to an orifice device for forming a hole with a full casing for a biting pile row pile Background Art

[0002] In the construction of an underground subway station, the open cut method is often used for excavating the station foundation pit. When constructing by the open cut method, considering factors such as foundation pit dewatering, biting pile rows can be used as the foundation pit support and water stop structure. Before constructing the biting pile rows, a reinforced concrete guide wall should be constructed first, and the positions of the biting piles are determined by using the concrete guide wall

[0003] The existing orifice device is a single device and cannot be fixed. The existing orifice device is not effectively fixed during actual construction, and deviation may occur. When deviation occurs, during the drilling process, the positioning holes of the guide wall cannot resist the friction of the steel casing or the drill bit of the drill rig. When the concrete of the guide wall is severely worn, the guide wall no longer has an effective positioning function. The existing orifice device cannot protect other hole positions near the operation area Summary of the Utility Model

[0004] In order to overcome the defects existing in the prior art, the present utility model provides an orifice device for forming a hole with a full casing for a biting pile row pile, so as to solve the problem that the orifice device of the existing biting pile row pile guide wall is prone to deviation during actual construction

[0005] To achieve the above object, the present utility model provides an orifice device for forming a hole with a full casing for a biting pile row pile, comprising:

[0006] A force unloading panel, which is placed on two relatively arranged guide walls of the biting pile row pile. A plurality of positioning holes that bite each other are formed between the opposite sides of the two guide walls. A perforation for the steel casing to pass through is formed in the middle of the force unloading panel, and the perforation is aligned with a positioning hole on the pile position to be constructed

[0007] Two insertion pipes, which are connected to the bottom of the force unloading panel, and the two insertion pipes are respectively inserted into two positioning holes on the opposite sides of the certain positioning hole

[0008] A plurality of anti-falling clamping keys, which are arranged at intervals along the circumferential direction of the perforation. One end of the anti-falling clamping key is rotatably installed on the force unloading panel, and the other ends of the plurality of anti-falling clamping keys press against the outer wall of the steel casing to prevent the steel casing from sliding down

[0009] Furthermore, a lifting lug is installed on the force unloading panel

[0010] Furthermore, the number of the lifting lugs is multiple, and the multiple lifting lugs are arranged along the circumferential direction of the force unloading panel

[0011] Furthermore, a load-bearing convex rib is formed on the force unloading panel, and the load-bearing convex rib is arranged in a circle along the circumferential direction of the through hole, and one end of the anti-falling key can be flipped and installed on the load-bearing convex rib.

[0012] Furthermore, an ear plate is vertically arranged on the load-bearing convex rib, the ear plate is connected to a hinge shaft, an axis hole is opened at one end of the anti-falling key, and the hinge shaft is rotatably inserted into the axis hole.

[0013] Furthermore, an anti-slip groove is formed on the outer wall of the steel casing, and the other end of the anti-fall key extends to the anti-slip groove and is supported by the groove wall at the upper portion of the anti-slip groove.

[0014] Furthermore, the other end of the anti-falling key is coated with an anti-slip layer.

[0015] The beneficial effect of the utility model is that the orifice device used for forming holes for interlocking pile rows and full-set pipe wall protection of the utility model mainly consists of a force unloading panel, a load-bearing convex ridge, an anti-falling key, and a pipe inserted in the adjacent pile position. The orifice device used for forming holes for interlocking pile rows and full-set pipe wall protection of the utility model is a new type of orifice device, which is used to protect the orifice of the positioning hole of the guide wall and to position the auxiliary orifice. The orifice device used for forming holes for interlocking pile rows and full-set pipe wall protection of the utility model protects the guide wall from damage caused by mechanical wear. The orifice device used for forming holes for interlocking pile rows and full-set pipe wall protection of the utility model effectively fixes the steel casing and effectively prevents the steel casing from falling when it is lifted up in sections multiple times during concrete pouring. The orifice device used for forming holes for interlocking pile rows and full-set pipe wall protection of the utility model reduces the disturbance of the surroundings by machinery during construction and avoids the displacement of the pile position. The utility model discloses a hole mouth device for forming holes by full-casing pipe wall with bite piles and pile rows, which effectively protects the hole positions on both sides of the working surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 It is a schematic structural diagram of the guide wall of the interlocking pile row according to an embodiment of the utility model.

[0018] Figure 2 It is a schematic structural diagram of a hole-opening device for forming holes in a full-casing pipe wall for engaging pile rows according to an embodiment of the utility model.

[0019] Figure 3 It is a front view of the orifice device used for forming holes in the full casing of bite pile rows and pipe protection walls according to an embodiment of the utility model.

[0020] Figure 4 It is a side view of the orifice device used for forming holes in the full casing of bite pile rows and pipe protection walls according to an embodiment of the utility model. Detailed implementation manners

[0021] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0022] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0023] Referring to Figures 1 to 4 As shown, the present utility model provides an orifice device for full casing retaining wall hole forming of secant pile row piles, including: a load unloading panel 1, an insertion pipe 2, and an anti-falling key 3.

[0024] In this embodiment, the load unloading panel 1 is rectangular. The load unloading panel 1 is placed on two opposite guide walls 4 of the secant pile row piles. The load unloading panel 1 is arranged along the length direction of the guide wall.

[0025] Referring to Figure 1 As shown, a plurality of positioning holes 40 are formed between the opposite sides of the two guide walls 4 and are engaged with each other.

[0026] A perforation is formed in the middle of the load unloading panel 1. The perforation is for a steel casing 5 to pass through. The perforation is aligned with a positioning hole 40 at the pile position to be constructed.

[0027] As a preferred implementation manner, lifting lugs 11 are installed on the load unloading panel 1.

[0028] In this embodiment, the number of the lifting lugs 11 is multiple. The multiple lifting lugs 11 are arranged along the circumferential direction of the load unloading panel 1.

[0029] Two insertion pipes 2 are connected to the bottom of the load unloading panel 1. In this embodiment, the two insertion pipes are respectively arranged at the opposite ends of the load unloading panel. The two insertion pipes are respectively arranged on the opposite sides of the perforation. The two insertion pipes 2 are respectively inserted into two positioning holes 40 on the opposite sides of a positioning hole 40 in a one-to-one correspondence.

[0030] In this embodiment, the two insertion pipes are respectively inserted into two adjacent positioning holes on the left and right sides of a positioning hole.

[0031] The number of the anti-falling keys 3 is multiple. The multiple anti-falling keys 3 are arranged at intervals along the circumferential direction of the perforation. In this embodiment, the anti-falling keys are arranged at equal intervals along the circumferential direction of the perforation. The number of the anti-falling keys is four.

[0032] One end of the anti-falling key 3 is rotatably installed on the load unloading panel 1. The other ends of the multiple anti-falling keys 3 press against the outer wall of the steel casing 5 to prevent the steel casing 5 from sliding down.

[0033] As a preferred embodiment, load - relieving ribs 12 are formed on the load - relieving panel 1. The load - relieving ribs 12 are arranged in a circle along the circumferential direction of the perforation. One end of the anti - falling locking key 3 is rotatably mounted on the load - relieving ribs 12.

[0034] Specifically, ear plates 13 are vertically provided on the load - relieving ribs 12. The number of ear plates is two. The two ear plates are arranged oppositely. The ear plates 13 are connected with a hinge shaft 14. The hinge shaft is connected between the two ear plates. One end of the anti - falling locking key 3 is provided with a shaft hole. The hinge shaft 14 is rotatably inserted into the shaft hole.

[0035] As a preferred embodiment, anti - slip grooves 50 are formed on the outer wall of the steel casing 5. The other end of the anti - falling locking key 3 extends into the anti - slip grooves 50 and supports on the upper groove wall of the anti - slip grooves 50.

[0036] As a preferred embodiment, the other end of the anti - falling locking key 3 is coated with an anti - slip layer.

[0037] The present utility model provides a construction method for an orifice device used for full - casing wall protection hole formation of secant pile rows, including the following steps:

[0038] S1. Lift and install the load - relieving panel 1, place the load - relieving panel 1 on the two opposite guide walls 4 of the secant pile rows, so that the perforations on the load - relieving panel 1 are aligned with a positioning hole 40 on the pile position to be constructed, and the two inserting pipes 2 are respectively inserted into the two positioning holes 40 on the opposite sides of a positioning hole 40.

[0039] S2. Flip multiple anti - falling locking keys 3 towards the outside of the perforation.

[0040] S3. Lift and install the steel casing 5 and lower it into the perforation.

[0041] S4. After the steel casing 5 is lowered to a preset height, flip multiple anti - falling locking keys 3 towards the inside of the perforation, so that the other ends of the multiple anti - falling locking keys 3 press against the outer wall of the steel casing 5 to prevent the steel casing 5 from sliding down.

[0042] S5. The drilling rig is in place and drills a hole through the steel casing 5.

[0043] The orifice device for full - casing wall protection hole formation of secant pile rows of the present utility model mainly consists of a load - relieving panel, load - relieving ribs, anti - falling locking keys, and inserting pipes at adjacent pile positions. The components of the orifice device are all made of Q235B steel, and the thickness can be determined according to the actual situation on site.

[0044] Before the drilling rig is in place, a crane is used to lift and install the orifice device to the pile position to be constructed (positioning hole), insert the bottom inserting pipe into the positioning hole of the adjacent pile position for fixation. At this time, the arc - shaped inner wall of the guide wall effectively fixes the orifice device to avoid displacement during construction.

[0045] Rotate the anti-falling clamping key to the outside of the perforation to prevent it from affecting the lowering of the steel casing. Lower the steel casing through the perforation at the center of the orifice device. When the steel casing is lowered to the corresponding height, reverse the anti-falling clamping key so that the other end of the anti-falling clamping key catches the steel casing.

[0046] When the steel casing needs to be lifted in sections during concrete pouring, the method is the same as when lowering the steel casing, just ensure that the anti-falling clamping key catches the steel casing.

[0047] During the installation of the steel reinforcement cage, the lowering of the conduit, and the concrete pouring of the secant pile row, the operators can stand on the opposite sides of the surface of the unloading panel, which is safe and reliable.

[0048] The orifice device for the full casing retaining wall hole forming of the secant pile row of the present utility model is a new type of orifice device, which protects the orifice of the positioning hole of the guide wall by using the orifice device, and assists in orifice positioning and prevents the steel casing from falling.

[0049] The orifice device for the full casing retaining wall hole forming of the secant pile row of the present utility model protects the guide wall from being damaged due to mechanical wear.

[0050] The orifice device for the full casing retaining wall hole forming of the secant pile row of the present utility model effectively fixes the steel casing and effectively prevents it from falling when the steel casing is lifted in sections multiple times during concrete pouring.

[0051] The orifice device for the full casing retaining wall hole forming of the secant pile row of the present utility model reduces the mechanical disturbance to the surrounding during the construction process and avoids the deviation of the pile position.

[0052] The orifice device for the full casing retaining wall hole forming of the secant pile row of the present utility model effectively protects the hole positions on both sides of the working surface.

[0053] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A hole-opening device for forming holes in a full-casing pipe wall for a pile row, characterized in that: include: The unloading panel is placed on two guide walls arranged opposite to each other of the interlocking pile row, and a plurality of mutually interlocking positioning holes are formed between the opposite sides of the two guide walls. A through hole for the steel casing to pass through is opened in the middle of the unloading panel, and the through hole is aligned with a positioning hole on the pile position to be constructed; Two inserting pipes are connected to the bottom of the unloading panel, and the two inserting pipes are inserted into two positioning holes on two opposite sides of the one positioning hole in a one-to-one correspondence; A plurality of anti-falling keys are arranged at intervals along the circumferential direction of the perforation, one end of the anti-falling key is flipably mounted on the force unloading panel, and the other end of the anti-falling key is pressed against the outer wall of the steel casing to prevent the steel casing from sliding down.

2. The orifice device for forming holes for bite piles and pile rows with full casing pipe protection wall according to claim 1, characterized in that: The force unloading panel is provided with a lifting lug.

3. The orifice device for forming holes for the full casing of the bite pile row according to claim 2 is characterized in that: The number of the lifting ears is multiple, and the multiple lifting ears are arranged along the circumferential direction of the force unloading panel.

4. The orifice device for forming holes for bite piles and pile rows with full casing pipe protection wall according to claim 1, characterized in that: The force unloading panel is formed with load-bearing convex ribs, and the load-bearing convex ribs are arranged in a circle along the circumferential direction of the through hole. One end of the anti-falling key can be flipped and installed on the load-bearing convex ribs.

5. The orifice device for forming holes for bite piles and pile rows with full casing pipe protection wall according to claim 4, characterized in that: An ear plate is vertically arranged on the load-bearing convex rib, and the ear plate is connected with a hinge shaft. An axis hole is opened at one end of the anti-falling key, and the hinge shaft is rotatably penetrated through the axis hole.

6. The orifice device for forming holes for bite piles and pile rows with full casing pipe protection wall according to claim 1, characterized in that: An anti-slip groove is formed on the outer wall of the steel casing, and the other end of the anti-falling key extends to the anti-slip groove and is supported by the groove wall at the upper part of the anti-slip groove.

7. The orifice device for forming holes for bite piles and pile rows with full casing pipe protection wall according to claim 6, characterized in that: The other end of the anti-falling key is coated with an anti-slip layer.

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