Construction method of steel structure underground wall with reserved mounting door opening

Abstract

The invention discloses a construction method for a steel structure underground wall with a reserved mounting door opening, and relates to the technical field of underground construction.The construction method comprises the steps that a, a frame body is erected above a foundation pit, a crane is arranged at the top of the frame body and connected with the top of a supporting plate through a rope, and hydraulic cylinders are symmetrically arranged at the top of the frame body; the output end of the hydraulic cylinder is connected with the top of the template through a long rod; b, firstly, the formwork is moved downwards, then a reinforcement cage is placed on the supporting plate, and concrete is poured into the supporting plate; c, after 12 hours, the formwork moves upwards, so that the formwork is separated from the concrete; and d, the supporting plate moves downwards to enter the foundation pit, then the formwork moves downwards again, then the reinforcement cage continues to be placed above the concrete, and concrete pouring and concrete vibration are repeated. The supporting plate is arranged to support the reinforcement cage above the foundation pit, after the formwork leaves the concrete, the defects on the outer side during concrete wall forming are conveniently observed, and then the defects are conveniently repaired, and waterproof mortar is conveniently sprayed to the wall.

Description

Technical Field

[0001] The present invention relates to the technical field of underground construction, and particularly to a construction method for a steel structure underground wall with a reserved installation door opening. Background Art

[0002] The traditional construction of underground walls generally involves digging a foundation pit groove on the ground, then placing a steel reinforcement cage in the foundation pit groove, and then pouring concrete in the foundation pit groove to form an underground wall. When pouring concrete in the foundation pit, it is impossible to determine the quality of the door opening in the foundation pit groove and the surface of the wall. For the door openings in the underground wall that need to be drilled for equipment such as cables, it is not convenient to check whether concrete has entered the door opening, and it is also not convenient to repair the cracks on the surface of the concrete wall.

[0003] The defects of the existing underground wall construction technologies are as follows: 1. The prior art KR1020130021949A discloses an underground structure wall reinforcement structure and an underground structure construction method. This technology cannot observe the forming quality of the concrete by pouring concrete inside the groove, and it is not convenient to repair the defects on the concrete wall surface. Therefore, a construction method for a steel structure underground wall with a reserved installation door opening that can conveniently observe the forming quality of the concrete and facilitate the repair of the concrete wall is needed to solve this problem.

[0004] 2. The prior art KR101079188B1 discloses an underground structure wall construction method. This technology requires a closed formwork for limiting the concrete to be set outside the steel reinforcement cage, and the installation and removal of the formwork need to be manually carried out, with a complex operation process and low efficiency. Therefore, a construction method for a steel structure underground wall with a reserved installation door opening that does not require manual removal of the formwork is needed to solve this problem.

[0005] 3. The prior art JP2014167228A discloses a basement wall and a construction method. When removing the formwork outside the concrete, when the outer surface of the concrete rubs against the formwork and causes concrete protrusions on the concrete surface, it is easy to cause the deterioration of the quality of the concrete wall. Therefore, a construction method for a steel structure underground wall with a reserved installation door opening that can flatten the concrete protrusions on the surface of the concrete wall is needed to solve this problem.

[0006] 4. The prior art CN108104111A discloses a high-precision underground wall construction method. This technology requires a vibrator to be inserted into the concrete when vibrating the concrete. Each time the concrete is vibrated, the vibrator needs to be inserted into the concrete from different places multiple times, with a complex operation process and low efficiency. Therefore, a construction method for a steel structure underground wall with a reserved installation door opening that can vibrate the concrete is needed to solve this problem. Summary of the Invention

[0007] An object of the present application is to provide a construction method for a steel structure underground wall with a reserved installation door opening, which can solve the technical problems proposed in the prior art.

[0008] To achieve the above object, the present invention provides the following technical solutions: A construction method for a steel structure underground wall with a reserved installation door opening, the construction method for the steel structure underground wall with a reserved installation door opening includes the following steps: a: Dig a foundation pit on the ground, erect a frame above the foundation pit, set a crane on the top of the frame, connect the top of the crane to the top of the pallet through a rope, symmetrically set hydraulic cylinders on the top of the frame, connect the output ends of the hydraulic cylinders to the top of the formwork through long rods, the two formworks are symmetrically distributed left and right, symmetrically set blocks on the side of the formwork, install rotating wheels inside the blocks, then set a plurality of vibrators on the side of the formwork, then set a plurality of rings on the side of the formwork, a vibrating rod is installed through the inside of the ring, both ends of the vibrating rod penetrate through both sides of the formwork respectively, and bolts are penetrated through the top of the ring to squeeze and fix the vibrating rod; b: First, lower the formwork so that the side of the formwork contacts the side of the pallet, then place the steel reinforcement cage above the pallet, and the steel reinforcement cage is located inside the left and right formworks, then pour concrete into the space formed by the pallet and the two formworks, so that the concrete wraps the steel reinforcement cage, thereby forming a wall; c: When the height of the concrete is flush with the height of the formwork, stop pouring concrete, then pull the vibrating rod outward so that the vibrating rod no longer inserts into the concrete. After 12 hours, the hydraulic cylinder drives the formwork to move upward, separating the formwork from the concrete, and at the same time, the rotating wheel flattens the rough places on both sides of the concrete; d: Then the pallet moves downward into the foundation pit, then the formwork moves downward again, and the bottom of the formwork is 10 - 15 cm higher than the top of the concrete on the pallet, then continue to place the steel reinforcement cage above the concrete, and repeat the concrete pouring and vibration of the concrete until the pallet touches the bottom of the foundation pit.

[0009] Preferably, the following steps are further included in the step a: Sleeve a plurality of limiting frames on the tops of the left and right formworks.

[0010] Preferably, the following steps are further included in the step b: Before pouring concrete, insert pipes and a frame door in the left - right direction in the steel reinforcement cage to form a door opening, so that the poured concrete leaves a door opening.

[0011] Preferably, the following steps are further included in the step b: Before pouring concrete onto the pallet, move the vibrating rod inward to contact the steel reinforcement cage, at the same time, the vibrator vibrates to drive the formwork to vibrate, and the vibration of the formwork drives the vibrating rod to vibrate, and the vibration of the vibrating rod causes the steel reinforcement cage to vibrate, thereby making the concrete vibrate and flow more easily to fill the gap between the two formworks.

[0012] Preferably, the following steps are further included in the step c: during the upward movement of the formwork, the staff repairs the cracked and defective parts on the outer side of the concrete on the pallet by adding concrete.

[0013] Preferably, the following steps are further included in the step d: when the pallet moves downward, waterproof mortar is sprayed on the outer side of the concrete.

[0014] Preferably, the height of the formwork is 1 meter.

[0015] Preferably, the planes where the inner sides of the left and right formworks are located are respectively tangent to the curved surfaces of the left and right rotating wheels.

[0016] Preferably, the distance between the axes of two adjacent vibrating rods at the same height in the front and back is 50 cm.

[0017] Preferably, both the pallet and the formwork are made of stainless steel plates.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: By arranging a pallet to support the steel reinforcement cage above the foundation pit, after the formwork leaves the concrete, it is convenient to observe the defects on the outer side when the concrete wall is formed, thereby facilitating the repair of the defects and the spraying of waterproof mortar on the wall.

[0019] The formwork set in the present invention only needs to move up and down to leave from the outer side of the concrete wall, without manual removal of the formwork, and the removal efficiency of the formwork is higher.

[0020] By arranging the rotating wheels in the present invention, during the process of the pallet driving the concrete wall to move downward, the raised parts of the cement generated by the friction between the side of the concrete wall and the formwork can be flattened, thereby improving the surface quality of the concrete wall.

[0021] By arranging vibrating rods and a vibrator in the present invention, the vibrating rods can contact the steel reinforcement cage, so that when the vibrator vibrates, it can drive the formwork and the vibrating rods to vibrate, and the vibrating rods drive the steel coil cage to vibrate, thereby making the concrete easier to be vibrated and filled into the internal pores of the steel reinforcement cage, and improving the forming quality of the concrete in the steel reinforcement cage. Description of the Drawings

[0022] Figure 1 is the flow chart of the construction method of the present invention; Figure 2 is the construction structure schematic diagram of the present invention; Figure 3 is the formwork structure schematic diagram of the present invention; Figure 4 is the structure schematic diagram of the rotating wheel and the ring body of the present invention.

[0023] In the figure: 1, ground; 2, framework; 3, crane; 4, rope; 5, pallet; 6, hydraulic cylinder; 7, formwork; 8, block; 9, rotating wheel; 10, vibrator; 11, ring body; 12, vibrating rod; 13, foundation pit; 14, limit frame. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation opening; The construction method for the steel structure underground wall with a reserved installation opening includes the following steps: a: A foundation pit 13 is dug on the ground 1, a frame 2 is erected above the foundation pit 13, a crane 3 is arranged on the top of the frame 2, the crane 3 is connected to the top of the support plate 5 through a rope 4, a hydraulic cylinder 6 is symmetrically arranged on the top of the frame 2, the output end of the hydraulic cylinder 6 is connected to the top of the template 7 through a long rod, the two templates 7 are symmetrically distributed, blocks 8 are symmetrically arranged on the side of the template 7, a rotating wheel 9 is installed on the inner side of the block 8, and then a plurality of vibrators 10 are arranged on the side of the template 7, and then a plurality of ring bodies 11 are arranged on the side of the template 7, a vibration rod 12 is installed through the inner side of the ring body 11, and the two ends of the vibration rod 12 respectively penetrate the two sides of the template 7, and a bolt is penetrated through the top of the ring body 11 to squeeze and fix the vibration rod 12; b: First, move the template 7 downward so that the side of the template 7 contacts the side of the support plate 5, then place the steel cage on the support plate 5, and the steel cage is located on the inner side of the left and right templates 7, and then pour concrete into the space formed by the combination of the support plate 5 and the two templates 7, so that the concrete wraps the steel cage, thereby forming a wall; c: When the height of the concrete is flush with the height of the template 7, stop pouring the concrete, and then pull the vibration rod 12 outward so that the vibration rod 12 is no longer inserted into the concrete. After 12 hours, the hydraulic cylinder 6 drives the template 7 to move upward to separate the template 7 from the concrete, and at the same time, the rotating wheel 9 flattens the rough areas on both sides of the concrete; d: Then the pallet 5 moves down into the foundation pit 13, and then the template 7 moves down again, and the bottom of the template 7 is made 10-15 cm higher than the top of the concrete on the pallet 5, and then the steel cage is placed above the concrete, and the concrete pouring and vibration are repeated until the pallet 5 contacts the bottom of the foundation pit 13.

[0028] Step a also includes the following steps: putting a plurality of limit frames 14 on the top of the left and right templates 7 .

[0029] Step b also includes the following steps: before pouring concrete, inserting pipes and frame doors in the left and right directions in the steel cage to form a door opening, so that the poured concrete leaves the door opening.

[0030] Step b also includes the following steps: before pouring concrete onto the support plate 5, the vibration rod 12 is moved inward to contact the steel cage, and at the same time, the vibration of the vibrator 10 drives the formwork 7 to vibrate, and at the same time, the vibration of the formwork 7 drives the vibration rod 12 to vibrate, and the vibration of the vibration rod 12 causes the steel cage to vibrate, thereby making the concrete easier to flow and fill the gap between the two formworks 7.

[0031] Step c also includes the following steps: during the upward movement of the template 7 , the staff adds concrete to the cracks and defects on the outer side of the concrete on the support plate 5 for repair.

[0032] In step d, the following steps are further included: when the pallet 5 moves downward, waterproof mortar is sprayed on the outer side of the concrete.

[0033] The height of the formwork 7 is 1 meter.

[0034] The planes where the inner sides of the left and right formworks 7 are located are respectively tangent to the curved surfaces of the left and right rotating wheels 9.

[0035] The distance between the axes of two adjacent vibrating rods 12 at the same height in the front and rear is 50 cm.

[0036] Both the pallet 5 and the formwork 7 are made of stainless steel plates.

[0037] Embodiment 2: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation door opening; Step 1: Excavate a foundation pit 13 on the ground 1, erect a frame 2 above the foundation pit 13, install a crane 3 at the top of the frame 2, connect the top of the crane 3 to the top of the pallet 5 through a rope 4, symmetrically arrange hydraulic cylinders 6 at the top of the frame 2, connect the output end of the hydraulic cylinder 6 to the top of the formwork 7 through a long rod, the two formworks 7 are symmetrically distributed left and right, symmetrically arrange blocks 8 on the side surfaces of the formwork 7, install the rotating wheels 9 inside the blocks 8, then arrange a plurality of vibrators 10 on the side surfaces of the formwork 7, then arrange a plurality of rings 11 on the side surfaces of the formwork 7, the vibrating rods 12 are installed through the inside of the rings 11, both ends of the vibrating rods 12 respectively penetrate through both sides of the formwork 7, bolts are arranged through the top of the rings 11 to squeeze and fix the vibrating rods 12, and then a plurality of limiting frames 14 are sleeved on the tops of the left and right formworks 7; Step 2: First, lower the formwork 7 so that the side surface of the formwork 7 contacts the side surface of the pallet 5, then place the steel reinforcement cage above the pallet 5, and the steel reinforcement cage is located inside the left and right formworks 7. Insert pipes and frame doors in the left-right direction in the steel reinforcement cage to form a door opening. Subsequently, move the vibrating rods 12 inward to contact the steel reinforcement cage, and then pour concrete into the space formed by the pallet 5 and the two formworks 7 so that the concrete wraps the steel reinforcement cage. At the same time, the vibrator 10 vibrates to drive the formwork 7 to vibrate, and at the same time, the formwork 7 vibrates to drive the vibrating rods 12 to vibrate. The vibration of the vibrating rods 12 causes the steel reinforcement cage to vibrate, so that the concrete is more easily vibrated and flows to fill the gap between the two formworks 7; Step 3: When the height of the concrete is flush with the height of the formwork 7, stop pouring the concrete, then pull the vibrating rod 12 outward so that the vibrating rod 12 is no longer inserted into the concrete. After 12 hours, the hydraulic cylinder 6 drives the formwork 7 to move upward to separate the formwork 7 from the concrete. At the same time, the rotating wheel 9 flattens the rough parts on both sides of the concrete. During the upward movement of the formwork 7, the staff adds concrete to repair the cracks and defects on the outer side of the concrete on the supporting plate 5; Step 4: Then the supporting plate 5 moves downward into the foundation pit 13. When the supporting plate 5 moves downward, waterproof mortar is sprayed on the outer side of the concrete. Subsequently, the formwork 7 moves downward again, and the bottom of the formwork 7 is 10 cm higher than the top of the concrete on the supporting plate 5. Then, a steel reinforcement cage is placed above the concrete again, and the concrete pouring and vibration of the concrete are repeated until the supporting plate 5 touches the bottom of the foundation pit 13.

[0038] Example 3: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation door opening; Step 1: Excavate a foundation pit 13 on the ground 1, erect a frame 2 above the foundation pit 13, install a crane 3 at the top of the frame 2, connect the top of the supporting plate 5 with the crane 3 through a rope 4, symmetrically arrange hydraulic cylinders 6 at the top of the frame 2, connect the output end of the hydraulic cylinder 6 with the top of the formwork 7 through a long rod, the two formworks 7 are symmetrically distributed left and right, symmetrically arrange blocks 8 on the side surfaces of the formworks 7, install the rotating wheels 9 inside the blocks 8, and then put a plurality of limit frames 14 on the tops of the left and right formworks 7; Step 2: First, move the formwork 7 downward so that the side surface of the formwork 7 touches the side surface of the supporting plate 5, then place the steel reinforcement cage above the supporting plate 5, and the steel reinforcement cage is located inside the left and right formworks 7. Insert pipes and frame doors in the left - right direction in the steel reinforcement cage to form a door opening. Subsequently, move the vibrating rod 12 inward to contact the steel reinforcement cage, and then pour the concrete into the space formed by the supporting plate 5 and the two formworks 7 so that the concrete wraps the steel reinforcement cage; Step 3: When the height of the concrete is flush with the height of the formwork 7, stop pouring the concrete, then pull the vibrating rod 12 outward so that the vibrating rod 12 is no longer inserted into the concrete. After 12 hours, the hydraulic cylinder 6 drives the formwork 7 to move upward to separate the formwork 7 from the concrete. At the same time, the rotating wheel 9 flattens the rough parts on both sides of the concrete. During the upward movement of the formwork 7, the staff adds concrete to repair the cracks and defects on the outer side of the concrete on the supporting plate 5; Step 4: Then the pallet 5 moves downward into the foundation pit 13. When the pallet 5 moves downward, waterproof mortar is sprayed on the outer side of the concrete. Subsequently, the formwork 7 moves downward again, and the bottom of the formwork 7 is 10 cm higher than the top of the concrete on the pallet 5. Then, the steel reinforcement cage is continuously placed above the concrete, and concrete pouring and vibration of the concrete are repeated until the pallet 5 touches the bottom of the foundation pit 13.

[0039] Example 4: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation door opening; Step 1: Excavate the foundation pit 13 on the ground 1, erect the frame 2 above the foundation pit 13, set the crane 3 at the top of the frame 2, connect the top of the pallet 5 with the crane 3 through the rope 4, symmetrically set the hydraulic cylinders 6 at the top of the frame 2, connect the output ends of the hydraulic cylinders 6 with the top of the formwork 7 through the long rods, the two formworks 7 are symmetrically distributed left and right, then set a plurality of vibrators 10 on the side of the formwork 7, then set a plurality of annular bodies 11 on the side of the formwork 7, the vibrating rods 12 are installed through the inside of the annular bodies 11, both ends of the vibrating rods 12 penetrate through both sides of the formwork 7 respectively, bolts are penetrated through the top of the annular bodies 11 to squeeze and fix the vibrating rods 12, and then a plurality of limiting frames 14 are sleeved on the tops of the left and right formworks 7; Step 2: First, move the formwork 7 downward so that the side of the formwork 7 touches the side of the pallet 5. Then, place the steel reinforcement cage above the pallet 5, and the steel reinforcement cage is located inside the left and right formworks 7. Insert the pipeline and the frame door in the left-right direction in the steel reinforcement cage to form a door opening. Subsequently, move the vibrating rod 12 inward to contact the steel reinforcement cage, and then pour the concrete into the space formed by the pallet 5 and the two formworks 7, so that the concrete wraps the steel reinforcement cage. At the same time, the vibrator 10 vibrates to drive the formwork 7 to vibrate, and at the same time, the formwork 7 vibrates to drive the vibrating rod 12 to vibrate. The vibration of the vibrating rod 12 causes the steel reinforcement cage to vibrate, so that the concrete is vibrated and flows more easily to fill the gap between the two formworks 7; Step 3: When the height of the concrete is flush with the height of the formwork 7, stop pouring the concrete. Then, pull the vibrating rod 12 outward so that the vibrating rod 12 is no longer inserted into the concrete. After 12 hours, the hydraulic cylinder 6 drives the formwork 7 to move upward to separate the formwork 7 from the concrete; Step 4: Then the pallet 5 moves downward into the foundation pit 13. When the pallet 5 moves downward, waterproof mortar is sprayed on the outer side of the concrete. Subsequently, the formwork 7 moves downward again, and the bottom of the formwork 7 is 10 cm higher than the top of the concrete on the pallet 5. Then, the steel reinforcement cage is continuously placed above the concrete, and concrete pouring and vibration of the concrete are repeated until the pallet 5 touches the bottom of the foundation pit 13.

[0040] Example 5: Please refer toFigure 1 , Figure 2 , Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation door opening; Step 1: Excavate a foundation pit 13 on the ground 1, erect a frame 2 above the foundation pit 13, install a crane 3 at the top of the frame 2, connect the top of the crane 3 to the top of a pallet 5 through a rope 4, symmetrically arrange hydraulic cylinders 6 at the top of the frame 2, connect the output end of the hydraulic cylinder 6 to the top of a formwork 7 through a long rod, the two formworks 7 are symmetrically distributed left and right, symmetrically arrange blocks 8 on the side surface of the formwork 7, install rotating wheels 9 inside the blocks 8, then arrange a plurality of vibrators 10 on the side surface of the formwork 7, then arrange a plurality of annular bodies 11 on the side surface of the formwork 7, a vibrating rod 12 is installed through the inside of the annular body 11, both ends of the vibrating rod 12 penetrate through both sides of the formwork 7 respectively, bolts are arranged through the top of the annular body 11 to squeeze and fix the vibrating rod 12, and then a plurality of limiting frames 14 are sleeved on the tops of the left and right formworks 7; Step 2: First, lower the formwork 7 so that the side surface of the formwork 7 contacts the side surface of the pallet 5, then place the steel reinforcement cage above the pallet 5, and the steel reinforcement cage is located inside the left and right formworks 7. Insert pipes and a frame door in the left - right direction in the steel reinforcement cage to form a door opening. Subsequently, move the vibrating rod 12 inward to contact the steel reinforcement cage, and then pour concrete into the space formed by the pallet 5 and the two formworks 7, so that the concrete wraps the steel reinforcement cage. At the same time, the vibrator 10 vibrates to drive the formwork 7 to vibrate, and at the same time, the formwork 7 vibrates to drive the vibrating rod 12 to vibrate. The vibration of the vibrating rod 12 causes the steel reinforcement cage to vibrate, thereby making the concrete vibrate and flow more easily to fill the gap between the two formworks 7; Step 3: When the height of the concrete is flush with the height of the formwork 7, stop pouring concrete, then pull the vibrating rod 12 outward so that the vibrating rod 12 is no longer inserted into the concrete. After 12 hours, the hydraulic cylinder 6 drives the formwork 7 to move upward, separating the formwork 7 from the concrete. At the same time, the rotating wheel 9 flattens the rough parts on both sides of the concrete. During the upward movement of the formwork 7, the staff adds concrete to repair the cracks and defects on the outer side of the concrete on the pallet 5; Step 4: Then the pallet 5 moves downward into the foundation pit 13. Subsequently, the formwork 7 moves downward again, and the bottom of the formwork 7 is 10 cm higher than the top of the concrete on the pallet 5. Then continue to place the steel reinforcement cage above the concrete, and repeat the concrete pouring and vibration of the concrete until the pallet 5 touches the bottom of the foundation pit 13.

[0041] Example 6: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation door opening; Step 1: Excavate a foundation pit 13 in the ground 1, erect a frame 2 above the foundation pit 13, install a crane 3 at the top of the frame 2, connect the top of the crane 3 to the top of the pallet 5 through a rope 4, symmetrically arrange hydraulic cylinders 6 at the top of the frame 2, connect the output end of the hydraulic cylinder 6 to the top of the formwork 7 through a long rod, the two formworks 7 are symmetrically distributed left and right, symmetrically arrange blocks 8 on the side of the formwork 7, install rotating wheels 9 inside the blocks 8, then arrange a plurality of vibrators 10 on the side of the formwork 7, and then put a plurality of limiting frames 14 on the tops of the left and right formworks 7; Step 2: First, lower the formwork 7 so that the side of the formwork 7 contacts the side of the pallet 5, then place the steel reinforcement cage above the pallet 5, and the steel reinforcement cage is located inside the left and right formworks 7. Insert pipes and a frame door in the left-right direction in the steel reinforcement cage to form a door opening. Subsequently, move the vibrating rod 12 inward to contact the steel reinforcement cage, and then pour concrete into the space formed by the pallet 5 and the two formworks 7, so that the concrete wraps the steel reinforcement cage. At the same time, the vibrator 10 vibrates to drive the formwork 7 to vibrate, thereby making the concrete vibrate and flow more easily to fill the gap between the two formworks 7; Step 3: When the height of the concrete is flush with the height of the formwork 7, stop pouring concrete. After 12 hours, the hydraulic cylinder 6 drives the formwork 7 to move upward to separate the formwork 7 from the concrete. At the same time, the rotating wheel 9 flattens the rough places on both sides of the concrete. During the upward movement of the formwork 7, the staff repairs the cracks and defects on the outside of the concrete on the pallet 5 by adding concrete; Step 4: Then the pallet 5 moves downward into the foundation pit 13. When the pallet 5 moves downward, spray waterproof mortar on the outside of the concrete. Subsequently, the formwork 7 moves downward again, and the bottom of the formwork 7 is 10 cm higher than the top of the concrete on the pallet 5. Then continue to place the steel reinforcement cage above the concrete, and repeat the concrete pouring and vibration of the concrete until the pallet 5 touches the bottom of the foundation pit 13.

[0042] Example 7: Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , a construction method for a steel structure underground wall with a reserved installation door opening; Step 1: Excavate a foundation pit 13 in the ground 1, erect a frame 2 above the foundation pit 13, install a crane 3 at the top of the frame 2, connect the top of the crane 3 to the top of the pallet 5 through a rope 4, symmetrically arrange hydraulic cylinders 6 at the top of the frame 2, connect the output end of the hydraulic cylinder 6 to the top of the formwork 7 through a long rod, the two formworks 7 are symmetrically distributed left and right, and then put a plurality of limiting frames 14 on the tops of the left and right formworks 7; Step 2: First, lower the template 7 until the side surface of the template 7 contacts the side surface of the pallet 5. Then, place the steel reinforcement cage above the pallet 5, and the steel reinforcement cage is located inside the left and right templates 7. Insert pipes and frame doors in the left-right direction in the steel reinforcement cage to form a door opening. Then, pour concrete into the space formed by the combination of the pallet 5 and the two templates 7 so that the concrete wraps the steel reinforcement cage; Step 3: When the height of the concrete is flush with the height of the template 7, stop pouring the concrete. After 12 hours, the hydraulic cylinder 6 drives the template 7 to move upward to separate the template 7 from the concrete; Step 4: Then, lower the pallet 5 into the foundation pit 13. Subsequently, lower the template 7 again and make the bottom of the template 7 10 cm higher than the top of the concrete on the pallet 5. Then, continue to place the steel reinforcement cage above the concrete and repeat the concrete pouring and vibration of the concrete until the pallet 5 touches the bottom of the foundation pit 13.

[0043] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A method for constructing a steel structure underground wall with a reserved door opening, characterized in that: The method for constructing a steel structure underground wall with a reserved door opening comprises the following steps: a: a foundation pit (13) is dug on the ground (1), a frame (2) is erected above the foundation pit (13), a crane (3) is arranged on the top of the frame (2), the crane (3) is connected to the top of the support plate (5) through a rope (4), a hydraulic cylinder (6) is symmetrically arranged on the top of the frame (2), the output end of the hydraulic cylinder (6) is connected to the top of the template (7) through a long rod, the two templates (7) are symmetrically distributed, blocks (8) are symmetrically arranged on the side of the template (7), a rotating wheel (9) is installed on the inner side of the block (8), and then a plurality of vibrators (10) are arranged on the side of the template (7), and then a plurality of ring bodies (11) are arranged on the side of the template (7), a vibration rod (12) is installed through the inner side of the ring body (11), the two ends of the vibration rod (12) respectively penetrate the two sides of the template (7), and a bolt is penetrated through the top of the ring body (11) to squeeze and fix the vibration rod (12); b: first, the template (7) is moved downward so that the side of the template (7) contacts the side of the support plate (5), and then the steel cage is placed above the support plate (5), and the steel cage is located on the inner side of the left and right templates (7), and then concrete is poured into the space formed by the support plate (5) and the two templates (7), so that the concrete wraps the steel cage, thereby forming a wall; c: When the height of the concrete is flush with the height of the template (7), the concrete pouring is stopped, and then the vibration rod (12) is pulled outward so that the vibration rod (12) is no longer inserted into the concrete. After 12 hours, the hydraulic cylinder (6) drives the template (7) to move upward, so that the template (7) is separated from the concrete, and at the same time, the rotating wheel (9) flattens the rough areas on both sides of the concrete; d: The support plate (5) is then moved down into the foundation pit (13), and then the formwork (7) is moved down again, and the bottom of the formwork (7) is made 10-15 cm higher than the top of the concrete on the support plate (5). Then, a steel cage is placed on top of the concrete, and the concrete pouring and vibration are repeated until the support plate (5) contacts the bottom of the foundation pit (13).

2. A method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The step a also includes the following step: placing a plurality of limit frames (14) on the top of the left and right templates (7).

3. A method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The step b also includes the following steps: before pouring concrete, inserting pipes and frame doors in the left and right directions in the steel cage to form a door opening, so that the poured concrete leaves the door opening.

4. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The step b also includes the following steps: before pouring concrete onto the support plate (5), the vibrating rod (12) is moved inward to contact the steel cage, and at the same time, the vibration of the vibrator (10) drives the template (7) to vibrate, and at the same time, the vibration of the template (7) drives the vibrating rod (12) to vibrate, and the vibration of the vibrating rod (12) causes the steel cage to vibrate, thereby making the concrete easier to flow and fill the gap between the two templates (7).

5. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The step c also includes the following steps: during the upward movement of the template (7), the staff adds concrete to the cracks and defects on the outer side of the concrete on the support plate (5) for repair.

6. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The step d also includes the following step: spraying waterproof mortar on the outer side of the concrete when the support plate (5) moves downward.

7. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The height of the template (7) is 1 meter.

8. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The planes on which the inner side surfaces of the left and right templates (7) are located are respectively tangent to the curved surfaces of the left and right rotating wheels (9).

9. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The distance between the axes of two adjacent vibration rods (12) at the same height is 50 cm.

10. The method for constructing a steel structure underground wall with a reserved door opening according to claim 1, characterized in that: The support plate (5) and the template (7) are both made of stainless steel plates.

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