A supplemental device for plugging the gap between a steel perimeter purlin and a side wall of a foundation pit and a method of using the same

Abstract

The application provides an auxiliary device for blocking the gap between steel enclosing purlin and foundation pit side wall, comprising: support plates fixedly connected with a plurality of the steel enclosing purlins; a plurality of sliding rails fixedly spaced on the top surface of the support plates and perpendicular to the extending direction of the steel enclosing purlins; and sliding plates slidingly arranged on the sliding rails and abutting against the bottom of the steel enclosing purlins, the side surfaces of adjacent two sliding plates abutting against each other, the sliding plates are slid along the sliding rails so as to abut against the foundation pit side wall, and then concrete is poured on the top of the sliding plates to block the gap between the steel enclosing purlin and the foundation pit side wall. The steel enclosing purlin is clamped by using fasteners, and then the sliding plates are moved along the sliding rails so as to abut against the foundation pit side wall, thereby blocking the gap between the foundation pit side wall and the steel enclosing purlin, and then concrete is poured in the gap to fixedly connect the steel enclosing purlin and the foundation pit side wall, thereby improving the stability of the steel enclosing purlin.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to an auxiliary device for sealing a gap between a steel perimeter purlin and a side wall of a foundation pit, and a use method thereof. Background Art

[0002] During the construction of open-cut subway stations and deep foundation pits for various buildings, retaining structures require support, and steel supports are widely used. Steel supports provide horizontal support for the retaining structure, ensuring its stability. To ensure the stability of the steel supports, the gaps between the steel purlins and the retaining piles are filled with concrete. This ensures stable and reliable contact between the steel purlins and the retaining structure when the steel supports are pressurized, providing safety for subsequent construction operations.

[0003] Because the soil between the piles is uneven and lacks the required close contact with the steel purlins, concrete backfill is required. During backfill construction behind the steel purlins, the lower opening needs to be sealed before backfilling. Existing solutions have involved using materials such as wood planks and rags to seal the lower opening. However, this method is not robust, creating a risk of concrete falling during backfill. Furthermore, the wood planks and rags occupy the contact area between the steel purlins and the surrounding structure, reducing their connection area and stability, posing a safety hazard. Summary of the Invention

[0004] In view of the above situation, the present invention provides an auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit, which solves the technical problem that the traditional steel purlin and the side wall of the pit are difficult to seal. The steel purlin is clamped with fasteners, and then the slide is moved along the slide rail so that several slides are attached to the side wall of the foundation pit, thereby sealing the gap between the side wall of the foundation pit and the steel purlin, and then concrete is poured in the gap to fix the connection between the steel purlin and the side wall of the foundation pit, thereby improving the stability of the steel purlin.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] An auxiliary device for sealing the gap between a steel purlin and a foundation pit side wall, comprising:

[0007] A supporting plate fixedly connected to a plurality of the steel purlins;

[0008] a plurality of slide rails fixed at intervals to the top surface of the support plate and perpendicular to the extension direction of the steel purlin; and

[0009] A slide plate is slidably mounted on the slide rail and has its top affixed to the bottom of the steel purlin. The sides of two adjacent slide plates are affixed to each other. The slide plate is slid along the slide rail so that the slide plate is affixed to the side wall of the foundation pit. Concrete is then poured on the top of the slide plate to seal the gap between the steel purlin and the side wall of the foundation pit.

[0010] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that a plurality of tripods are fixed at intervals on the side wall of the foundation pit, and the steel purlin includes two baffles arranged opposite to each other and fixed at the bottom to the top of the tripods, and a plurality of I-beams fixed between the two baffles;

[0011] The auxiliary device also includes a plurality of fasteners that are buckled into the tripod and located between the two baffles, and a fixing plate that is horizontally fixed to the side of the fasteners away from the tripod, the top elevation of the fixing plate being lower than the bottom elevation of the baffle, and the support plate being fixedly connected to the top surface of the fixing plate.

[0012] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that the fastener includes a U-shaped clamping portion, the fixing plate is fixed to the clamping portion, and the clamping portion is clamped on the side of the tripod.

[0013] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that the tripod is made of I-beams, and the engaging portion is clamped on the I-beam located at the top.

[0014] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that the I-beam includes two wing plates arranged opposite to each other and a rib plate fixedly connected between the two wing plates, the baffle is fixed to the wing plate located at the top, and the clamping portion is clamped on the wing plate located at the top.

[0015] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that it also includes a fastening bolt screwed into the clamping portion, and the fastening bolt is screwed to support the tripod, thereby fixing the clamping portion and the tripod.

[0016] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that a guide groove is provided on one side of the slide plate and a convex strip opposite to the guide groove is provided on the other side;

[0017] The protruding strip of one slide plate is slidably arranged in the guide groove of another slide plate to connect the two adjacent slide plates.

[0018] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that the vertical cross-section of the convex strip is rectangular.

[0019] A further improvement of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is that the slide rail is C-shaped, and a sliding portion matching the C-shape is provided at the bottom of the slide plate.

[0020] A method for using an auxiliary device for sealing a gap between a steel purlin and a foundation pit side wall comprises the following steps:

[0021] The support plate is fixedly connected to the steel purlin, and the top of the slide plate is attached to the bottom of the steel purlin;

[0022] Sliding the slides along the slide rails so that a plurality of the slides are in contact with the side walls of the foundation pit;

[0023] Concrete is poured on the top of the slide plate and in the gap between the steel purlin and the side wall of the foundation pit to seal the gap between the steel purlin and the side wall of the foundation pit.

[0024] The auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention fixes the tripod with fasteners, and then moves the slide along the slide rail so that several slides are fitted to the side wall of the foundation pit, thereby sealing the gap between the side wall of the foundation pit and the steel purlin. By arranging multiple slides, it is possible to fit the side wall of the foundation pit with different convexities to the greatest extent, avoiding leakage of concrete when pouring concrete, improving the connection stability between the steel purlin and the side wall of the foundation pit, and improving the stability of the steel purlin. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a top sectional view of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit according to the present invention.

[0027] Figure 2 The present invention is a schematic diagram showing the use of a slide plate in an auxiliary device for sealing a gap between a steel purlin and a side wall of a foundation pit.

[0028] Figure 3 It is a side sectional view of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit according to the present invention.

[0029] Figure 4 It is a side sectional view after the steel purlin and foundation pit side wall are sealed.

[0030] The correspondence between the reference numerals and the components is as follows: retaining piles 11 , foundation pit side walls 12 , tripods 21 , steel purlins 22 , filling layers 3 , fasteners 4 , support plates 5 , slide rails 6 , and slide plates 7 . DETAILED DESCRIPTION

[0031] To facilitate understanding of the present invention, the following description is given with reference to the accompanying drawings and embodiments.

[0032] See also Figures 1 to 3 The present invention provides an auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit, comprising:

[0033] A support plate 5 fixedly connected to a plurality of steel purlins 22;

[0034] A plurality of slide rails 6 fixed at intervals to the top surface of the support plate 5 and perpendicular to the extending direction of the steel purlin 22; and

[0035] The slide plate 7 is slidably mounted on the slide rail 6 and has its top affixed to the bottom of the steel purlin 22. The sides of two adjacent slide plates 7 are affixed to each other. The slide plate 7 is slid along the slide rail 6 so that the slide plate 7 is affixed to the side wall 12 of the foundation pit. Then, concrete is poured into the gap at the top of the slide plate 7 to seal the gap between the steel purlin 22 and the side wall 12 of the foundation pit.

[0036] Preferably, a plurality of retaining piles 11 are provided at intervals on the sidewalls of the foundation pit, and the retaining piles 11 are buried in the sidewalls 12 of the foundation pit.

[0037] A preferred embodiment of the auxiliary device for sealing the gap between the steel purlin and the foundation pit side wall of the present invention is as follows: a plurality of tripods 21 are fixed at intervals on the foundation pit side wall 12; the steel purlin 22 includes two baffles arranged opposite to each other and fixed at the bottom to the top of the tripods 21; and a plurality of I-beams fixed between the two baffles.

[0038] The auxiliary device also includes a plurality of fasteners 4 that are fastened to the tripod 21 and located between the two baffles, and a fixing plate that is horizontally fixed to the side of the fasteners 4 away from the tripod 21, wherein the top elevation of the fixing plate is lower than the bottom elevation of the baffle, and the support plate 5 is fixedly connected to the top surface of the fixing plate.

[0039] Preferably, if Figure 3 As shown, the tripod 21 is fixed to the retaining pile 11 , thereby improving the stability of the tripod 21 .

[0040] Preferably, the tripod 21 is formed by welding three I-beams. The tripod 21 is in the shape of a right triangle. The steel purlin 22 is fixed to the top surface of the I-beam at the top, and the fastener 4 is fixed to the wing plate of the I-beam at the top.

[0041] Specifically, the fastener 4 includes a U-shaped clamping portion fastener, the fixing plate is fixed to the clamping portion, and the clamping portion is clamped on the side of the tripod.

[0042] Specifically, the tripod is made of I-beam, and the engaging portion is clamped on the I-beam located at the top.

[0043] Specifically, the I-beam includes two wing plates arranged opposite to each other and a rib fixedly connected between the two wing plates. The baffle is fixed to the wing plate at the top, and the clamping portion is clamped to the wing plate at the top.

[0044] Specifically, it also includes a fastening bolt screwed into the clamping portion, and the fastening bolt is screwed to support the wing plate, thereby fixing the clamping portion and the wing plate.

[0045] Furthermore, the fastener 4 may also have only a U-shaped snap-fitting portion, the support plate 4 is fixed to the top surface of the snap-fitting portion, the support plate 4 is recessed downward corresponding to the position between the two tripods to form a recessed portion, the bottom elevation of the recessed portion is lower than the bottom elevation of the baffle, and the slide rail 6 and the slide plate 7 are arranged in the recessed portion.

[0046] Furthermore, a guide groove is provided on one side of the slide plate 7 and a convex strip opposite to the guide groove is provided on the other side;

[0047] The protruding strip of one slide plate is slidably arranged in the guide groove of another slide plate to connect the two adjacent slide plates.

[0048] Preferably, the width of the slide plate 7 is greater than the width of the slide rail 6 , and the number of the slide plates 7 is set according to the degree of concavity and convexity of the foundation pit side wall 12 .

[0049] Preferably, the vertical cross-section of the convex strip is rectangular.

[0050] Specifically, the slide rail 6 is C-shaped, and a sliding portion matching the C-shape is provided at the bottom of the slide plate 7 .

[0051] Preferably, the support plate 5 is made of wood.

[0052] The auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention clamps the tripod 21 with a fastener 4, and then moves the slide 7 along the slide rail 6 so that several slides 7 are fitted to the side wall 12 of the foundation pit, thereby sealing the gap between the side wall 12 of the foundation pit and the steel purlin 22. By setting multiple slides 7, it is possible to fit the side wall 12 of the foundation pit with different convexities to the greatest extent, avoiding leakage during concrete pouring, improving the connection stability between the steel purlin and the side wall of the foundation pit, and improving the stability of the steel purlin.

[0053] A specific implementation example of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is as follows: a certain number of slide rails 6 are fixed to the top surface of the support plate 5, a slide plate 7 is slidably arranged on the slide rail 6, and a convex strip of one slide plate 7 is slidably arranged in the guide groove of another slide plate to connect two adjacent slide plates 7, a plurality of fasteners 4 are installed on the tripod 21 at intervals, the support plate 5 is fixedly connected to the fixing plates of the plurality of fasteners 4 so that the top of the slide plate 7 is in contact with the bottom of the baffle, and the slide plate 7 is slid along the slide rail 6 so that the plurality of slide plates 7 are in contact with the side wall 12 of the foundation pit;

[0054] Concrete is poured on the top of the slide plate 7 and in the gap between the steel purlin 22 and the foundation pit side wall 11 to form a filling layer 3, thereby sealing the gap between the steel purlin and the foundation pit side wall.

[0055] A method for using an auxiliary device for sealing a gap between a steel purlin and a foundation pit side wall comprises the following steps:

[0056] The support plate 5 is fixedly connected to the steel purlin 22, and the top of the slide plate 7 is attached to the bottom of the steel purlin 22;

[0057] Slide the slides 7 along the slide rails 6 so that a plurality of the slides 7 are in contact with the sidewalls 12 of the foundation pit;

[0058] Concrete is poured on the top of the slide plate 7 and in the gap between the steel purlin 22 and the foundation pit side wall 11 to seal the gap between the steel purlin 22 and the foundation pit side wall 12 .

[0059] A specific implementation example of the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit of the present invention is as follows: a certain number of slide rails 6 are fixed to the top surface of the support plate 5, a slide plate 7 is slidably arranged on the slide rail 6, and a convex strip of one slide plate 7 is slidably arranged in the guide groove of another slide plate to connect two adjacent slide plates 7, a plurality of fasteners 4 are installed on the tripod 21 at intervals, the support plate 5 is fixedly connected to the fixing plates of the plurality of fasteners 4 so that the top of the slide plate 7 is in contact with the bottom of the baffle, and the slide plate 7 is slid along the slide rail 6 so that the plurality of slide plates 7 are in contact with the side wall 12 of the foundation pit;

[0060] Concrete is poured on the top of the slide plate 7 and in the gap between the steel purlin 22 and the foundation pit side wall 11 to form a filling layer 3, thereby sealing the gap between the steel purlin and the foundation pit side wall.

[0061] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit, characterized in that: include: A support plate fixedly connected to the plurality of steel purlins; a plurality of slide rails fixed at intervals to the top surface of the support plate and perpendicular to the extension direction of the steel purlin; and A slide plate is slidably mounted on the slide rail and has its top affixed to the bottom of the steel purlin, with the sides of two adjacent slide plates affixed to each other. The slide plate is slid along the slide rail so as to affix to the side wall of the foundation pit, and concrete is poured on the top of the slide plate to seal the gap between the steel purlin and the side wall of the foundation pit. A plurality of tripods are fixed at intervals on the side walls of the foundation pit, and the steel purlin includes two baffles arranged opposite to each other and fixed at the bottom to the top of the tripods, and a plurality of I-beams fixed between the two baffles; The auxiliary device further includes a plurality of fasteners that are fastened to the tripod and located between the two baffles, and a fixing plate that is horizontally fixed to the side of the fasteners away from the tripod, wherein the top elevation of the fixing plate is lower than the bottom elevation of the baffles, and the support plate is fixedly connected to the top surface of the fixing plate; The tripod is formed by welding three I-beams. The tripod is in the shape of a right triangle. The steel purlin is fixed to the top surface of the I-beam at the top, and the fasteners are fixed to the wing plate of the I-beam at the top. The fastener includes a U-shaped clamping portion, the fixing plate is fixed to the clamping portion, and the clamping portion is clamped on the side of the tripod; The tripod is made of I-beam, and the clamping portion is clamped on the I-beam at the top; The I-beam includes two wing plates arranged opposite to each other and a rib fixedly connected between the two wing plates, the baffle is fixed to the wing plate at the top, and the clamping portion is clamped on the wing plate at the top; It also includes a fastening bolt screwed into the clamping portion, and the fastening bolt is screwed to support the tripod, thereby fixing the clamping portion and the tripod; The support plate is fixed to the top surface of the engaging portion. The support plate is recessed downward corresponding to the position between the two tripods to form a recessed portion. The bottom elevation of the recessed portion is lower than the bottom elevation of the baffle. The slide rail and the slide plate are arranged in the recessed portion. A guide groove is formed on one side of the slide plate, and a convex strip opposite to the guide groove is formed on the other side of the slide plate; The protruding strip of one slide plate is slidably arranged in the guide groove of another slide plate to connect the two adjacent slide plates; The auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit uses fasteners to clamp the tripod, and then moves the slide along the slide rail so that several slides are fitted to the side wall of the foundation pit, thereby sealing the gap between the side wall of the foundation pit and the steel purlin. By setting up multiple slides, it is possible to fit the side wall of the foundation pit with different convexities to the greatest extent, avoiding leakage when pouring concrete, improving the connection stability between the steel purlin and the side wall of the foundation pit, and improving the stability of the steel purlin.

2. The auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit according to claim 1 is characterized in that: A guide groove is provided on one side of the slide plate and a convex strip opposite to the guide groove is provided on the other side; The protruding strip of one slide plate is slidably arranged in the guide groove of another slide plate to connect the two adjacent slide plates.

3. The auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit according to claim 2, characterized in that: The vertical cross section of the convex strip is rectangular.

4. The auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit according to claim 1, characterized in that: The slide rail is C-shaped, and a sliding portion matching the C-shape is provided at the bottom of the slide plate.

5. A method for using the auxiliary device for sealing the gap between the steel purlin and the side wall of the foundation pit as claimed in claim 1, characterized in that: The steps include: The support plate is fixedly connected to the steel purlin, and the top of the slide plate is attached to the bottom of the steel purlin; Sliding the slides along the slide rails so that a plurality of the slides are in contact with the side walls of the foundation pit; Concrete is poured on the top of the slide plate and in the gap between the steel purlin and the side wall of the foundation pit to seal the gap between the steel purlin and the side wall of the foundation pit.

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