Construction method for arranging elevator foundation across fertilizer groove

Abstract

The invention relates to a construction method for arranging an elevator foundation across a fertilizer groove. The construction method comprises the following steps that positioning paying-off is conducted in a construction area on the periphery of the fertilizer groove; a formwork is erected between the foundation on the two sides of the fertilizer groove and the wall body; binding a reinforcing mesh according to the formwork; an embedded part is arranged on the reinforcing mesh; and pouring concrete to form the elevator foundation layer. According to the construction method for arranging the elevator foundation across the fertilizer groove, the formwork is erected above the fertilizer groove, the elevator foundation layer is formed between the foundation on the two sides of the fertilizer groove and the wall in a pouring mode, reliable support is provided for follow-up elevator installation, the embedded parts are arranged in the foundation layer, assembling of the elevator body can be assisted, and the installation quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of engineering construction technology, and specifically to a construction method for setting up a hoist foundation across a fertilizer trench. Background Technology

[0002] In modern construction, elevators have become a commonly used vertical transportation device.

[0003] Conventional construction hoist foundations are normally situated on natural foundations or the top slab of the basement. However, when there are no suitable locations around the main building and the construction hoist can only be installed in the trench, the construction hoist foundation needs to span the trench.

[0004] Because of the construction across the trench, the load on the elevator during construction can easily cause instability in the underground structure, which in turn can lead to construction safety accidents, and the overall quality and safety of the building structure cannot be guaranteed. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a construction method for setting up a hoist foundation across a trench, which solves the problem that the load of the hoist during existing construction can easily cause instability in the underground structure, leading to construction safety accidents, and the overall quality and safety of the building structure cannot be guaranteed.

[0006] The technical solution to achieve the above objective is: a construction method for setting up a lift foundation across a fertilizer tank, comprising the following steps: positioning and laying out lines in the construction area around the fertilizer tank; erecting a formwork between the foundation and walls on both sides of the fertilizer tank; binding a steel mesh according to the formwork; setting embedded parts on the steel mesh; and pouring concrete to form the lift foundation layer.

[0007] In the construction method of setting up a lift foundation across a fertilizer trench according to the present invention, a formwork is erected above the fertilizer trench, and a lift foundation layer is formed between the foundation and the wall on both sides of the fertilizer trench, which provides reliable support for the subsequent installation of the lift. Embedded parts are set in the foundation layer to assist in the assembly of the lift body and ensure the installation quality.

[0008] A further improvement of the construction method for setting up a lift foundation across a fertilizer trough according to the present invention is that the formwork erection between the foundation and the wall on both sides of the fertilizer trough includes: setting up a retaining wall on the side of the foundation closer to the fertilizer trough and setting up waler support.

[0009] A further improvement of the construction method for setting up a lift foundation across a fertilizer trough according to the present invention is that the formwork erection between the foundation and the wall on both sides of the fertilizer trough further includes: constructing a cushion layer above the foundation and the retaining wall.

[0010] A further improvement of the construction method for setting up a lift foundation across a fertilizer trough according to the present invention is that the formwork erected between the foundation and the wall on both sides of the fertilizer trough further includes setting a cantilever beam on the wall near the fertilizer trough.

[0011] A further improvement of the construction method for setting up a lifting platform foundation across a trough according to the present invention is that the step of binding the steel mesh according to the formwork includes: erecting the steel mesh on the foundation layer and the cantilever beam.

[0012] A further improvement of the construction method for setting up a lifting platform foundation across a fertilizer trough according to the present invention is that the method of setting up a formwork between the foundation and the wall on both sides of the fertilizer trough further includes: setting the upper end face of the cantilever beam flush with the upper end face of the cushion layer.

[0013] A further improvement of the construction method for setting up a hoist foundation across a trough according to the present invention is that setting the embedded part on the steel mesh includes: marking the positioning point of the embedded part on the steel mesh; if the positioning point conflicts with the position of the main reinforcement in the steel mesh, adjusting the position of the main reinforcement.

[0014] A further improvement of the construction method for setting up a hoist foundation across a trough according to the present invention is that the setting of the embedded parts on the steel mesh further includes: using a positioning bracket to assist in the installation of the embedded parts.

[0015] A further improvement of the construction method for setting up a hoist foundation across a trough according to the present invention is that setting the embedded parts on the steel mesh further includes setting a protective sleeve on the embedded parts.

[0016] A further improvement of the construction method for setting up a lift foundation across a trough according to the present invention is that the pouring of concrete to form the lift foundation layer includes: when pouring the concrete, using a level to check the position and verticality of the embedded parts. Attached Figure Description

[0017] Figure 1 This is a schematic flowchart of a construction method for setting up a lift foundation across a fertilizer tank according to the present invention.

[0018] Figure 2 This is a structural cross-sectional view of the foundation for the elevator across the fertilizer tank according to the present invention.

[0019] Figure 3 This is a flowchart illustrating step S120 of the present invention.

[0020] Figure 4 This is another schematic diagram of step S120 of the present invention.

[0021] Figure 5 This is another schematic diagram of step S120 of the present invention.

[0022] Figure 6 This is a flowchart illustrating step S130 of the present invention.

[0023] Figure 7 This is another schematic diagram of step S120 of the present invention.

[0024] Figure 8 This is a flowchart illustrating step S140 of the present invention.

[0025] Figure 9 This is another schematic diagram of step S140 of the present invention.

[0026] Figure 10 This is another schematic diagram of step S140 of the present invention.

[0027] Figure 11 This is a flowchart illustrating step S150 of the present invention.

[0028] In the diagram: 1. Fertilizer trench; 2. Foundation; 21. Retaining wall; 22. Waler; 3. Wall; 4. Foundation layer; 5. Subbase; 6. Cantilever beam. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] See Figure 1 and Figure 2 , Figure 2 This shows a structural cross-sectional view of the foundation for the elevator installed across the fertilizer tank according to the present invention. Figure 1 This diagram illustrates a construction method for setting up a lift foundation across a fertilizer trench according to the present invention. The present invention provides a construction method for setting up a lift foundation across a fertilizer trench, comprising the following steps:

[0031] Step S110: Position and lay out the lines in the construction area around the fertilizer tank 1.

[0032] In this process, based on the dimensions of the hoist foundation, the construction area around the trough 1 is positioned and marked out according to the range of the construction hoist foundation. Then, step S120 is executed.

[0033] Step S120: Erect a formwork between the foundation 2 and the wall 3 on both sides of the fertilizer tank 1.

[0034] Among them, the two sides of the trough 1 are the outdoor natural ground foundation 2 and the basement exterior wall, respectively. The elevated area between the foundation 2 and the wall 3 is the trough 1, which is supported by a disc-lock formwork system. It is easy to install and disassemble and has high construction efficiency. Next, step S130 is executed.

[0035] In this embodiment, since the height-to-width ratio of the formwork exceeds 3:1, steel pipes are installed at the four corners and the middle of the formwork every two steps. The steel pipes are firmly attached to the outer wall and enclosure to form a reliable support.

[0036] Execute step S130: Tie the reinforcing mesh according to the formwork.

[0037] In this process, the position lines of the reinforcing bars are located according to the edge lines and center lines of the layout, and then step S140 is executed.

[0038] Perform step S140: Set embedded parts in the steel mesh.

[0039] Among them, the embedded parts are anchor bolts. When installing the anchor bolts, first lift the upper part of the anchor bolt to a vertical position, then weld the lower part to the tied steel bar to form a whole, and then perform step S150.

[0040] In this embodiment, after the anchor bolts are installed, the holes of the base frame are fitted onto the anchor bolts, and the double nuts on all the anchor bolts are tightened to prevent the anchor bolts from shifting position.

[0041] Step S150: Pour concrete to form the elevator foundation layer 4.

[0042] The upper surface of the foundation layer 4 is set higher than the top surface of the outer foundation 2, which is beneficial for drainage.

[0043] See Figure 2 and Figure 3 , Figure 2 This shows a structural cross-sectional view of the foundation for the elevator installed across the fertilizer tank according to the present invention. Figure 3 A flowchart illustrating step S120 of the present invention is shown. The present invention provides a construction method for setting up a lift foundation across a trough, step S120 including:

[0044] Step S121: Install a retaining wall 21 on the side of the foundation 2 near the trough 1, and install walers 22 for support.

[0045] The retaining wall 21 can protect the foundation 2 and prevent it from collapsing during construction.

[0046] See Figure 4 This diagram illustrates another flow chart of step S120 of the present invention. The present invention provides a construction method for setting up a lift foundation across a fertilizer tank, wherein step S120 further includes:

[0047] Step S122: Construct a cushion layer 5 above the foundation 2 and retaining wall 21.

[0048] The thickness of the subbase 5 is determined based on the design elevation of the foundation layer 4, and no specific restrictions are imposed here. Before tying the reinforcing bars, it should be ensured that the ground is flat. The backfilled and compacted foundation 2 surface should not be disturbed. The ground surface of the natural foundation 2 where the construction hoist foundation is placed is uneven and not suitable for reinforcing bar tying work, so the subbase 5 is required for auxiliary construction.

[0049] See Figure 5 This diagram illustrates another flow chart of step S120 of the present invention. The present invention provides a construction method for setting up a lift foundation across a fertilizer tank, wherein step S120 further includes:

[0050] Execute step S123: Install a cantilever beam 6 on the wall 3 near the side of the trough 1.

[0051] The dimensions of the cantilever beam 6 are set according to actual construction needs and are not specifically limited here.

[0052] In this embodiment, the cantilever beam 6 is configured as a cuboid, and extends horizontally along the side wall of the basement exterior wall. The cantilever beam 6 is equipped with reinforcing bars that are anchored into the exterior wall to achieve a reliable connection.

[0053] See Figure 6 The diagram shows a flowchart of step S130 of the present invention. The present invention provides a construction method for setting up a lift foundation across a trough, step S130 including:

[0054] Step S131: Lay the steel mesh on top of the foundation 5 and the cantilever beam 6.

[0055] The steel mesh is horizontally installed above the trench 1, and the cushion layer 5 and cantilever beam 6 can support the steel mesh and the elevator foundation layer 4 from both ends.

[0056] In this embodiment, the reinforcing mesh is double-layered and bidirectionally reinforced. The dimensions of the reinforcing mesh are set according to the dimensions of the elevator foundation, and no specific restrictions are imposed here.

[0057] See Figure 2 and Figure 7 , Figure 2 This shows a structural cross-sectional view of the foundation for the elevator installed across the fertilizer tank according to the present invention. Figure 7 Another flowchart of step S120 of the present invention is shown. The present invention provides a construction method for setting up a lift foundation across a trough, and step S120 further includes:

[0058] Step S124: Align the upper surface of the cantilever beam 6 with the upper surface of the cushion layer 5.

[0059] The height of the cantilever beam 6 corresponds to the height of the subbase 5.

[0060] See Figure 8The diagram shows a flowchart of step S140 of the present invention. The present invention provides a construction method for setting up a lift foundation across a trough, step S140 including:

[0061] Perform step S141: Mark the positioning points of the embedded parts on the steel mesh, and then perform step S142.

[0062] Execute step S142: If the positioning point conflicts with the position of the main reinforcement in the steel mesh, adjust the position of the main reinforcement.

[0063] When the positioning point of the embedded part conflicts with the position of the main reinforcement in the steel mesh, the position of the main reinforcement can be adjusted appropriately to ensure the installation position of the embedded part.

[0064] See Figure 9 This diagram illustrates another flow chart of step S140 of the present invention. The present invention provides a construction method for setting up a lift foundation across a fertilizer tank, wherein step S140 further includes:

[0065] Perform step S143: Use a positioning bracket to assist in the installation of the embedded parts.

[0066] Temporary fixing of embedded parts and structural reinforcement bars can be achieved by binding or spot welding with stirrups. Welding between embedded parts and main reinforcement bars should be avoided as much as possible during construction.

[0067] In this embodiment, anchor bolts are used for the embedded parts. The relative positions of the embedded bolts on the same column foot can be fixed by positioning brackets. The positioning brackets can be made by channel steel brackets or steel plates with holes. The positioning brackets and the bolts of the anchor bolts can be fixed with nuts.

[0068] See Figure 10 This diagram illustrates another flow chart of step S140 of the present invention. The present invention provides a construction method for setting up a lift foundation across a fertilizer tank, wherein step S140 further includes:

[0069] Perform step S144: Install a protective sleeve on the embedded part.

[0070] The bolt heads of the embedded parts are higher than the concrete level after the concrete is poured, so that they can be connected to the main structure of the elevator later. The bolt heads of the embedded parts can be wrapped with plastic sheeting to prevent debris from sticking to the concrete during pouring.

[0071] See Figure 11 The diagram shows a flowchart of step S150 of the present invention. The present invention provides a construction method for setting up a lift foundation across a fertilizer tank, step S150 including:

[0072] Step S151: When pouring concrete, use a level to check the position and verticality of the embedded parts.

[0073] Among other things, a vibrator is used to compact the concrete during pouring to ensure a uniform pouring effect.

[0074] In this embodiment, the vibrator should be inserted quickly and withdrawn slowly to ensure uniform vibration. The vibration time at each point is generally 20-30 seconds, but should be maintained until the concrete surface is level, no longer significantly subsided, no longer contains air bubbles, and mortar appears on the surface. The distance between vibration points should not exceed 400mm. Vibration of embedded parts and collision with reinforcing bars are prohibited during vibration, as this may cause displacement of the embedded parts. The allowable deviation for the flatness of the upper surface of foundation 2 is 10mm. Before the concrete initially sets, the verticality of the embedded parts should be checked again with a level and corrected.

[0075] After the concrete is poured, it should be cured promptly to keep it moist. One set of standard test blocks and two sets of test blocks under the same conditions should be prepared.

[0076] 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 construction method for setting up a hoist foundation across a fertilizer trench, characterized in that, Includes the following steps: Positioning and layout of the construction area around the fertilizer tank; A formwork frame is erected between the foundation and the walls on both sides of the fertilizer tank; According to the formwork, the reinforcing mesh is tied; Embedded parts are installed on the steel mesh; The foundation layer of the elevator is formed by pouring concrete.

2. The construction method for setting up a lift foundation across a fertilizer trench according to claim 1, characterized in that, The construction of the formwork between the foundation and the walls on both sides of the fertilizer tank includes: A retaining wall is installed on the side of the foundation near the fertilizer tank, and walers are installed for support.

3. The construction method for setting up a lift foundation across a fertilizer tank according to claim 2, characterized in that, The formwork erection between the foundation and walls on both sides of the fertilizer tank also includes: A foundation layer is constructed above the foundation and the retaining wall.

4. The construction method for setting up a lift foundation across a fertilizer trench according to claim 3, characterized in that, The formwork erection between the foundation and walls on both sides of the fertilizer tank also includes: A cantilever beam is installed on the wall near the fertilizer trough.

5. A construction method for setting up a lift foundation across a fertilizer trench according to claim 4, characterized in that, The step of binding the reinforcing mesh according to the formwork includes: The steel mesh is laid on top of the foundation layer and the cantilever beam.

6. The construction method for setting up a hoist foundation across a fertilizer trench according to claim 4, characterized in that, The formwork erection between the foundation and walls on both sides of the fertilizer tank also includes: The upper surface of the cantilever beam is made flush with the upper surface of the cushion layer.

7. The construction method for setting up a lift foundation across a fertilizer trench according to claim 1, characterized in that, The method of setting embedded parts on the steel mesh includes: Mark the positioning points of the embedded parts on the steel mesh; If the positioning point conflicts with the position of the main reinforcement bar in the steel mesh, adjust the position of the main reinforcement bar.

8. The construction method for setting up a lift foundation across a fertilizer trench according to claim 1, characterized in that, The method of setting embedded parts on the steel mesh also includes: The embedded parts are installed with the aid of a positioning bracket.

9. A construction method for setting up a hoist foundation across a fertilizer trench according to claim 1, characterized in that, The method of setting embedded parts on the steel mesh also includes: A protective sleeve is installed on the embedded part.

10. A construction method for setting up a lift foundation across a fertilizer trench according to claim 1, characterized in that, The method of setting embedded parts on the steel mesh also includes: A protective sleeve is installed on the embedded part.

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