Formwork structure for construction of rockfill concrete dam

Abstract

The utility model relates to a form structure for rockfill concrete dam construction is provided on the concrete dam foundation, the form structure includes: the fixed installation in the opposite two sides of concrete dam foundation a plurality of installation rod, a plurality of installation rod along the extension direction interval arrangement of concrete dam foundation, the fixed installation in a plurality of installation rod top's support formwork, support formwork is located installation rod is close to one end of concrete dam foundation, is obliquely arranged in the support formwork close to one side of concrete dam foundation's guide stone board, the top of guide stone board is connected with the side portion of support plate, forms on guide stone board guide stone groove, the bottom of guide stone board is provided with the partition board, the width of partition board and the width of support formwork are adapted, the bottom of partition board is pasted in the top of concrete dam foundation, and is obliquely arranged in the support formwork away from one side of guide stone groove's telescopic support leg.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, and specifically refers to a template structure for the construction of rockfill concrete dams. Background Technology

[0002] Traditional separate construction methods require installing formwork before manually stacking stones, which is inefficient. Controlling the distance between the stones and the formwork is difficult, easily leading to incomplete concrete coverage. The formwork has weak impact resistance; during stone stacking, the piled stones can tip over and fall towards the formwork, causing deformation and resulting in protrusions on the surface of the final concrete dam. This leads to defects in the dam's appearance and may cause stress concentration at these protrusions during use, posing a safety risk. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects of the prior art and provide a formwork structure for the construction of rockfill concrete dams. By setting a guide stone plate on the side of the supporting formwork, it is convenient to push the stones to the designated position of the formwork. A partition plate is set at the bottom of the guide stone plate to limit the accumulation range of the stones and prevent the stones from rolling down towards the supporting formwork, which would cause the supporting formwork to deform.

[0004] The technical solution to achieve the above objectives is a formwork structure for the construction of a rockfill concrete dam, which is set on the foundation of the concrete dam. The formwork structure includes:

[0005] Several mounting rods are fixedly installed on opposite sides of the concrete dam foundation, and these mounting rods are spaced apart along the extension direction of the concrete dam foundation.

[0006] A support template is fixedly installed on the top of several of the mounting rods, and the support template is located at one end of the mounting rod near the concrete dam foundation;

[0007] An inclined guide stone plate is installed on the side of the supporting template near the concrete dam foundation. The top of the guide stone plate is connected to the side of the supporting plate. A guide stone groove is formed on the guide stone plate. A partition plate is provided at the bottom of the guide stone plate. The width of the partition plate is adapted to the width of the supporting template. The bottom of the partition plate is attached to the top of the concrete dam foundation.

[0008] Telescopic support legs are inclined and set on the side of the support template away from the guide groove.

[0009] Furthermore, a fixing rod is fixedly installed at the bottom of the mounting rod, and a threaded hole is formed on the fixing rod. The concrete dam foundation has a fixing hole corresponding to the threaded hole. The fixing rod is fixed to the concrete dam foundation by means of a bolt threadedly connected to the threaded hole and the fixing hole.

[0010] Furthermore, a diagonal brace is provided between the fixing rod and the mounting rod.

[0011] Furthermore, a stop block is provided on the side of the fixing rod near the concrete dam foundation, and the stop block abuts against the side of the concrete dam foundation.

[0012] Furthermore, a sliding groove is formed at the top of the mounting rod, a sliding block is slidably disposed in the sliding groove, and the telescopic support leg is rotatably disposed on the sliding block.

[0013] Furthermore, a limiting hole is formed on the side of the sliding block, and a connecting hole is formed on the side of the mounting rod corresponding to the limiting hole. The connecting hole is connected to the sliding groove, and the sliding block is fixed by inserting a screw into the connecting hole and the limiting hole.

[0014] Furthermore, the support template is assembled from several template units. Connecting plates are provided on both sides of each template unit, and several mounting holes are provided at intervals on the connecting plates. The two template units are fixedly connected by threading bolts to two adjacent template units.

[0015] Furthermore, the support template includes: an outer panel disposed on the top of the mounting rod, and the telescopic support leg is disposed on the side of the outer panel away from the concrete dam foundation;

[0016] An inner panel is disposed at the top of the mounting rod and on the side of the outer panel closest to the concrete dam foundation, with a buffer space formed between the inner panel and the outer panel; and

[0017] A buffer layer is provided within the buffer space.

[0018] Furthermore, the length of the guide stone plate is determined according to the site requirements.

[0019] Furthermore, a pressure sensor is provided between the telescopic outrigger and the support template.

[0020] Compared with the prior art, this utility model has the following advantages:

[0021] By installing guide plates on the side of the support template, stones can be easily pushed down to the designated position of the template. A partition plate is installed at the bottom of the guide plate to limit the accumulation range of the stones and prevent them from rolling down towards the support template, which could cause the support template to deform. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of a formwork structure used in the construction of a rockfill concrete dam.

[0023] Legend: 1. Concrete dam foundation; 2. Guide stone plate; 3. Partition plate; 4. Support formwork; 5. Telescopic outrigger; 6. Installation rod; 7. Diagonal brace; 8. Fixing rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] See Figure 1 A formwork structure for constructing a rockfill concrete dam is provided on a concrete dam foundation 1. The formwork structure includes: a plurality of mounting rods 6 fixedly installed on opposite sides of the concrete dam foundation 1, the plurality of mounting rods 6 being spaced apart along the extension direction of the concrete dam foundation 1; a supporting formwork 4 fixedly installed on the top of the plurality of mounting rods 6, the supporting formwork 4 being located at one end of the mounting rods 6 near the concrete dam foundation 1; a guide plate 2 inclinedly installed on the side of the supporting formwork 4 near the concrete dam foundation 1, the top of the guide plate 2 being connected to the side of the supporting plate, a guide groove being formed on the guide plate 2, a partition plate 3 being provided at the bottom of the guide plate 2, the width of the partition plate 3 being adapted to the width of the supporting formwork 4, and the bottom of the partition plate 3 being attached to the top of the concrete dam foundation 1; and a telescopic support leg 5 inclinedly installed on the side of the supporting formwork 4 away from the guide groove.

[0026] In this utility model, a preferred embodiment is as follows: A concrete dam foundation 1 is poured at a predetermined construction location of the concrete dam to facilitate subsequent construction. The concrete dam foundation 1 can be poured by setting a pouring template at the predetermined construction location. After the concrete dam foundation 1 has solidified and reached a certain strength, the installation rod 6 is fixed to two opposite sides of the concrete dam foundation 1. Preferably, anchor bolt holes can be pre-drilled on the concrete dam foundation 1 during pouring. An installation plate is provided at the end of the installation rod 6, and the installation plate has a threaded hole corresponding to the anchor bolt hole. The installation rod 6 is fixed by passing an anchor bolt through the anchor bolt hole and the threaded hole. The support template 4 is fixed to several installation rods 6. The support template 4 can be fixed by bolts or welding. Preferably, a support rod is vertically installed on the installation rod 6, and the support template 4 is fixed to the support rod. The support rod is located on the side of the concrete dam foundation 1. This support rod enhances the support effect of the support formwork 4. During the concrete dam pouring process, stones can slide down the guide plate 2 at the top of the support formwork 4 into the two support formworks 4. The partition plate 3 at the bottom of the guide plate 2 prevents stones from rolling down and damaging the support formwork 4. The partition plate 3 also ensures that the distance between the piled stones and the support formwork 4 is controllable, allowing for complete coverage by the subsequent concrete and increasing the overall strength of the final poured concrete dam. Stones are continuously added between the two partition plates 3 until the concrete dam foundation 1 is completely covered with stones and the top elevation of the topmost stone is level with the bottom elevation of the guide plate 2. Concrete is then poured into the support formwork 4. After the concrete in the support formwork 4 reaches a certain strength, the support formwork 4 is removed.

[0027] Furthermore, a fixing rod 8 is fixedly installed at the bottom of the mounting rod 6. A threaded hole is formed on the fixing rod 8, and a fixing hole is formed on the concrete dam foundation 1 corresponding to the threaded hole. A bolt is threadedly connected to the threaded hole and the fixing hole to fix the fixing rod 8 to the concrete dam foundation 1. The fixing rod 8 supports the mounting rod 6, thereby increasing the fixing strength of the mounting rod 6. Preferably, the fixing hole can be pre-drilled in the concrete dam foundation 1 during the pouring of the concrete dam foundation 1.

[0028] Furthermore, a diagonal brace 7 is provided between the fixing rod 8 and the mounting rod 6. This diagonal brace 7 is used to enhance the support strength of the mounting rod 6.

[0029] Furthermore, a stop block is provided on the side of the fixing rod 8 near the concrete dam foundation 1, and the stop block abuts against the side of the concrete dam foundation 1.

[0030] Furthermore, a sliding groove is formed at the top of the mounting rod 6, a sliding block is slidably disposed in the sliding groove, and the telescopic support leg 5 is rotatably disposed on the sliding block.

[0031] Furthermore, a limiting hole is formed on the side of the sliding block, and a connecting hole is formed on the side of the mounting rod 6 corresponding to the limiting hole. The connecting hole is connected to the sliding groove. The sliding block is fixed by inserting a screw into the connecting hole and the limiting hole.

[0032] Furthermore, the support template 4 is composed of several template units spliced ​​together. Connecting plates are provided on both sides of the template unit, and several mounting holes are provided at intervals on the connecting plates. The two template units are fixedly connected by threading bolts to two adjacent template units.

[0033] Furthermore, the support template 4 includes: an outer panel disposed on the top of the mounting rod 6, with the telescopic support leg 5 disposed on the side of the outer panel away from the concrete dam foundation 1; an inner panel disposed on the top of the mounting rod 6 and located on the side of the outer panel closer to the concrete dam foundation 1, with a buffer space formed between the inner panel and the outer panel; and a buffer layer disposed within the buffer space. Preferably, the outer panel is made of 5mm thick Q355B steel plate, the buffer layer is made of 50mm thick polyurethane buffer layer, and the inner panel is made of 3mm thick wear-resistant steel plate.

[0034] Furthermore, the length of the guide plate 2 is determined according to the site requirements.

[0035] Furthermore, a pressure sensor is provided between the telescopic outrigger 5 and the support template 4.

[0036] The following describes the usage process of a formwork structure for the construction of a rockfill concrete dam according to this utility model.

[0037] A concrete dam foundation 1 is poured at a predetermined construction location to facilitate subsequent construction. This can be achieved by setting up a pouring formwork at the predetermined location. After the concrete dam foundation 1 has solidified and reached a certain strength, the installation rod 6 is fixed to two opposite sides of the concrete dam foundation 1. Preferably, anchor bolt holes are pre-drilled in the concrete dam foundation 1 during pouring. An installation plate is provided at the end of the installation rod 6, and the installation plate has a threaded hole corresponding to the anchor bolt hole. The installation rod 6 is fixed by passing anchor bolts through the anchor bolt hole and the threaded hole. The support formwork 4 is fixed to several installation rods 6. The support formwork 4 can be fixed by bolts or welding. Preferably, a support rod is vertically installed on the installation rod 6, and the support formwork 4 is fixed to the support rod near the concrete dam foundation. On one side of the earthen dam foundation 1, the support rod is used to increase the support effect of the support formwork 4. During the pouring of the concrete dam, stones can slide down the guide plate 2 at the top of the support formwork 4 into the two support formworks 4. The partition plate 3 set at the bottom of the guide plate 2 can prevent stones from rolling down the guide formwork 4 and causing damage to the support formwork 4. By setting the partition plate 3, the spacing between the piled stones and the support formwork 4 can be controlled, so that the subsequent concrete covering is complete, increasing the overall strength of the finally poured concrete dam. Stones are continuously added between the two partition plates 3 until the concrete dam foundation 1 is filled with stones and the top elevation of the topmost stone is level with the bottom elevation of the guide plate 2. Concrete is poured in the support formwork 4. After the concrete in the support formwork 4 reaches a certain strength, the support formwork 4 is removed.

[0038] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A formwork structure for constructing a rockfill concrete dam, set on the foundation of the concrete dam, characterized in that, The template structure includes: Several mounting rods are fixedly installed on opposite sides of the concrete dam foundation, and these mounting rods are spaced apart along the extension direction of the concrete dam foundation. A support template is fixedly installed on the top of several of the mounting rods, and the support template is located at one end of the mounting rod near the concrete dam foundation; An inclined guide stone plate is installed on the side of the supporting template near the concrete dam foundation. The top of the guide stone plate is connected to the side of the supporting plate. A guide stone groove is formed on the guide stone plate. A partition plate is provided at the bottom of the guide stone plate. The width of the partition plate is adapted to the width of the supporting template. The bottom of the partition plate is attached to the top of the concrete dam foundation. Telescopic support legs are inclined and set on the side of the support template away from the guide groove.

2. The formwork structure for construction of a rockfill concrete dam according to claim 1, characterized in that: A fixing rod is fixedly installed at the bottom of the mounting rod, and a threaded hole is formed on the fixing rod. The concrete dam foundation has a fixing hole corresponding to the threaded hole. The fixing rod is fixed to the concrete dam foundation by means of a bolt threadedly connected to the threaded hole and the fixing hole.

3. The formwork structure for construction of a rockfill concrete dam according to claim 2, characterized in that: A diagonal brace is provided between the fixed rod and the mounting rod.

4. The formwork structure for construction of a rockfill concrete dam according to claim 2, characterized in that: A stop block is provided on the side of the fixing rod near the concrete dam foundation, and the stop block abuts against the side of the concrete dam foundation.

5. A formwork structure for construction of a rockfill concrete dam according to claim 1, characterized in that: The top of the mounting rod has a sliding groove, a sliding block is slidably disposed in the sliding groove, and the telescopic support leg is rotatably disposed on the sliding block.

6. A formwork structure for construction of a rockfill concrete dam according to claim 5, characterized in that: The sliding block has a limiting hole on its side, and the mounting rod has a connecting hole on its side corresponding to the limiting hole. The connecting hole is connected to the sliding groove. The sliding block is fixed by inserting a screw into the connecting hole and the limiting hole.

7. A formwork structure for construction of a rockfill concrete dam according to claim 1, characterized in that: The support template is composed of several template units. Connecting plates are provided on both sides of each template unit. Several mounting holes are provided on the connecting plates at intervals. The two template units are fixedly connected by threaded bolts to two adjacent template units.

8. A formwork structure for construction of a rockfill concrete dam according to claim 1, characterized in that, The support template includes: an outer panel disposed on the top of the mounting rod, and the telescopic support leg disposed on the side of the outer panel away from the concrete dam foundation; An inner panel is disposed at the top of the mounting rod and on the side of the outer panel closest to the concrete dam foundation, with a buffer space formed between the inner panel and the outer panel; and A buffer layer is disposed within the buffer space.

9. A formwork structure for construction of a rockfill concrete dam according to claim 1, characterized in that: The length of the guide plate is determined according to the site requirements.

10. A formwork structure for construction of a rockfill concrete dam according to claim 1, characterized in that: A pressure sensor is installed between the telescopic outrigger and the support template.

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