Positioning control device for settlement gap of shaft duct piece of vertical shaft

Abstract

The utility model discloses a shaft duct piece settlement gap positioning control device, which comprises a pre-embedded plate and a support backing plate, the backing plate is provided with a support plate, a stress transfer groove and a stress transfer plate, and the stress transfer plate can transfer stress to the stress groove and then transfer the stress to a stress release pre-embedded plate through the stress transfer plate. Through the arrangement of the vertical shaft duct piece settlement gap positioning control device structure, the position of the vertical shaft duct piece can be more accurately controlled, the vertical deviation precision control value during vertical shaft duct piece settlement is increased, vertical shaft tunneling construction is more facilitated, and additional expenses and construction period control caused by vertical shaft deviation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of vertical shaft segment settlement gap positioning control technology, and more specifically to a vertical shaft segment settlement positioning control device. Background Technology

[0002] Shaft excavation technology is a core component of underground space development, widely used in subways, underground parking garages, energy storage, and other fields. With accelerated urbanization, the requirements for precision, efficiency, and safety in shaft construction have significantly increased. As a key component of the shaft support structure, the positional control of the gaps after settlement directly affects the shaft's stability and long-term safety. Traditional construction methods, limited by geological conditions, equipment precision, and construction techniques, are prone to segment misalignment, leakage, or gap deviations, leading to problems such as ground disturbance and structural deformation.

[0003] Uneven settlement and gap control challenges: Traditional caisson method relies on manual excavation and cast-in-place structure, which is easily affected by uneven soil hardness and groundwater level fluctuations, resulting in deviation of the segment sinking trajectory and difficulty in uniformly controlling the side gaps.

[0004] Equipment and process limitations: Early shaft construction mostly used open excavation or bored pile retaining structures, which had drawbacks such as long construction period, large land area, and significant disturbance to the surrounding environment.

[0005] This device, while ensuring the upper clearance of the shaft segments, combined with measures such as lower side grouting, not only greatly improves construction efficiency and quality but also plays a significant role in project cost control.

[0006] The current ability to control the back gap and vertical accuracy of the settlement of vertical shaft segments is poor, which can lead to deviation of the segment sinking trajectory, resulting in segment misalignment, leakage and other phenomena, which in turn can cause quality problems such as ground disturbance and structural deformation.

[0007] Therefore, how to provide a vertical shaft segment settlement gap positioning control device to solve the above problems is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0008] In view of this, the present invention provides a vertical shaft segment settlement gap positioning control device for solving the current problem of uneven settlement and gap control in vertical shafts mentioned in the background art, which may affect the stability and safety of the overall structure of the vertical shaft segment.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A vertical shaft segment settlement gap positioning control device includes an embedded plate and a support plate. Each of the support plates is provided with a support plate, a stress transmission groove and a stress transmission plate. The stress transmission plate can transmit stress to the stress groove and then to the stress release embedded plate through the stress transmission plate.

[0011] The stress transfer plate in the pad is placed in the stress transfer groove of the pad, and then the stress transfer plate in the pad is placed in the stress transfer groove of the pad. This process is repeated to complete the installation of pads 1-4. Then the semi-circular hand holes of the stress transfer plates in pads 1-4 are tied and fixed, that is, pads 1-4 are fixed to form a whole.

[0012] Preferably, the device consists of multiple pads, and the pads are connected by a grooved socket assembly.

[0013] Preferably, the stress transmission plate is provided with a 50mm diameter semi-circular hand hole, and the upper and lower sides of the support plate are provided with 45-degree forward and reverse slope angles.

[0014] Preferably, the stress transfer plate is provided with a pre-embedded Q355, 400×200×25mm thick plate on the ring beam foundation to achieve stress release and protect the ring beam foundation.

[0015] As can be seen from the above technical solution, compared with the prior art, the vertical shaft segment settlement gap positioning control device disclosed in this utility model has the following beneficial effects:

[0016] 1. The vertical shaft segment settlement gap positioning control device is made of Q355 steel, which has strong rigidity. The use of a high-rigidity material can more accurately control the settlement gap of the vertical shaft segment so that the gap size will not change due to compression deformation.

[0017] 2. The vertical shaft segment settlement gap positioning control device is composed of multiple pads assembled and connected by groove socket, which is not only easy to install but also applicable to various segment settlement gap sizes, making it convenient to control gaps of different sizes, and making the overall structure more stable and safe.

[0018] 3. The vertical shaft segment settlement gap positioning control device uses a pre-embedded Q355, 400×200×25mm thick pad plate on the ring beam foundation through a pad stress transfer plate to achieve stress release and protect the ring beam foundation.

[0019] 4. The vertical shaft segment settlement gap positioning control device is equipped with a connecting groove on the pad support plate and 45-degree forward and reverse slope angles on the upper and lower sides of the pad plate. The pad plate stress transfer plate is equipped with a hand hole for personnel installation, which facilitates personnel installation, pad plate fixing and subsequent removal and reuse. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 The attached figure is a schematic diagram of the single-piece pad structure of this utility model.

[0022] Figure 2 The attached figure is a schematic diagram of the overall installation structure of this utility model.

[0023] Figure 3 The attached figure is a schematic diagram of the pre-embedded component structure of this utility model.

[0024] Figure 4 The attached figure is a schematic diagram of the overall layout of the device of this utility model. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 4 The present invention relates to a vertical shaft segment settlement gap positioning control device, comprising a pad plate 1, a pad plate 2, a pad plate 3, a pad plate 4, and a stress relief embedded plate 5. Each of the pad plates 1-4 is provided with a support plate ①, a stress transmission groove ②, and a stress transmission plate ③. The stress transmission plate ③ can transmit stress to the stress groove ② and then through the stress transmission plate to the stress relief embedded plate 5. This effectively transfers the frictional stress between the segments and the pad plates during settlement to the ring beam foundation for elimination, making the overall structure more stable and safer.

[0027] For further details, please refer to Figure 1 A schematic diagram of a single pad structure is shown. Pads 1-4 are each equipped with a support plate ①, a stress transfer groove ②, and a stress transfer plate ③. A 50mm diameter semi-circular hand hole ④ is provided on the stress transfer plate ③. The upper and lower sides of the support plate ① are provided with 45-degree forward and reverse slope angles, which can better facilitate the installation of the segment settlement gap positioning control device and stress transfer release by personnel.

[0028] For further details, please refer to Figure 2The overall installation structure diagram shows that, firstly, the stress transfer plate ③ in pad 2 is placed in the stress transfer groove ② of pad 1, and then the stress transfer plate ③ in pad 3 is placed in the stress transfer groove ② of pad 2. This process is repeated to complete the installation of pad 1, pad 2, pad 3, and pad 4. Then, the semi-circular handholes ④ of the stress transfer plates ③ in pad 1, pad 2, pad 3, and pad 4 are tied and fixed to secure them as a whole, thereby improving the overall stability of the shaft segment settlement gap positioning control device during shaft segment settlement.

[0029] For further details, please refer to Figure 3 The schematic diagram of the embedded component shows that the embedded plate 5 is reliably connected to the concrete foundation by welding anchors embedded in the concrete to enhance stress relief and ensure the final stress transmission and release.

[0030] For further details, please refer to Figure 4 The overall layout diagram shows that the vertical shaft segment 6 is evenly equipped with vertical shaft segment settlement gap positioning control device points 7 around it. This can effectively and evenly eliminate gap deviation, control the back gap of the segment to the maximum extent, and ensure that the sinking trajectory of the segment is controlled.

[0031] In this invention, the working steps of the device are as follows:

[0032] The first step: During the construction phase of the foundation ring beam 8, before concrete pouring, pre-embed stress relief plates according to the planar position of the well shaft segment settlement gap positioning control device. The pre-embedded plates are made of Q355 steel, 400×200×25mm thick pads, to provide stress relief and protection for the ring beam foundation.

[0033] The second step: After the first or second ring of segments is installed, install pad 1, pad 2, pad 3, and pad 4 in sequence, adjust to make the gap size behind each segment consistent, and fix them through the manhole to form a whole.

[0034] The vertical shaft segment settlement gap positioning and control device disclosed in this utility model has the following beneficial effects:

[0035] 1. The vertical shaft segment settlement gap positioning control device is made of Q355 steel, which has strong rigidity. The use of a high-rigidity material can more accurately control the settlement gap of the vertical shaft segment so that the gap size will not change due to compression deformation.

[0036] 2. The vertical shaft segment settlement gap positioning control device is composed of multiple pads assembled and connected by groove socket, which is not only easy to install but also applicable to various segment settlement gap sizes, making it convenient to control gaps of different sizes, and making the overall structure more stable and safe.

[0037] 3. The vertical shaft segment settlement gap positioning control device uses a pre-embedded Q355, 400×200×25mm thick pad plate on the ring beam foundation through a pad stress transfer plate to achieve stress release and protect the ring beam foundation.

[0038] 4. The vertical shaft segment settlement gap positioning control device is equipped with a connecting groove on the pad support plate and 45-degree forward and reverse slope angles on the upper and lower sides of the pad plate. The pad plate stress transfer plate is equipped with a hand hole for personnel installation, which facilitates personnel installation, pad plate fixing and subsequent removal and reuse.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vertical shaft segment settlement gap positioning control device, comprising an embedded plate (5) and multiple support pads, characterized in that, The plurality of support pads include a first support pad (1), a second support pad (2), a third support pad (3), and a fourth support pad (4) connected in sequence. Each of the support pads is provided with a support plate (①), a stress transmission groove (②) and a stress transmission plate (③). The stress transmission plate (③) can transmit stress to the stress transmission groove (②) and then to the embedded plate (5) through the stress transmission plate (③). The stress transfer plate (③) in the second support pad (2) is placed in the stress transfer groove (②) of the first support pad (1), the stress transfer plate (③) in the third support pad (3) is placed in the stress transfer groove (②) of the second support pad (2), and the stress transfer plate (③) in the fourth support pad (4) is placed in the stress transfer groove (②) of the third support pad (3). Then, the semi-circular hand holes (④) of the stress transfer plates (③) in each support pad are tied and fixed so that the multiple support pads are fixed to form a whole.

2. The vertical shaft segment settlement gap positioning control device according to claim 1, characterized in that, The connection between the multiple support pads adopts a groove socket assembly connection.

3. The vertical shaft segment settlement gap positioning control device according to claim 1, characterized in that, The stress transfer plate (③) is provided with a semi-circular hand hole (④) with a diameter of 50mm, and the support plate (①) is provided with a 45-degree positive and negative slope angle on the upper and lower sides.

4. The vertical shaft segment settlement gap positioning control device according to claim 1, characterized in that, The embedded plate (5) is a Q355 material, 400×200×25mm thick pad plate set on the foundation of the ring beam (8), which is used to release stress and protect the foundation of the ring beam.

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