Hanging type movable supporting structure of upside-down hanging well

Abstract

The utility model discloses a hanging type movable supporting structure of an inverted well, which is characterized by comprising a supporting screw rod reserved on the outer side of a reinforcing mesh of each section of the wall of the inverted well, a lifting hook reserved on the edge of the top of the reinforcing mesh of each section of the wall of the inverted well, a chain block and a template supporting system, the supporting screw penetrates through the formwork supporting system to fix the formwork supporting system to the designed position of the wall of the pouring upside-down hanging well, and the top of the formwork supporting system is connected with a lifting hook through a chain block so that the formwork supporting system can move in a hanging mode through the chain block after being separated from fixing of the supporting screw. The utility model solves the problems that in the excavation and support construction process of the upside-down hanging well, as the template and the support system are repeatedly dismantled and lifted up and down for multiple times, the potential safety hazard exists, and the construction period cannot be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the inverted shaft support and excavation construction technical field, specifically discloses a kind of inverted shaft vertical suspension type mobile support structure. BACKGROUND

[0002] With the continuous development of social urbanization, China's infrastructure is more and more perfect, in recent years, a large number of water supply, drainage, sewage diversion and other engineering construction, further improve the city function, improve the city quality, improve the living environment. With the city renewal action, overall planning of urban underground pipe network and comprehensive pipe gallery construction, "factory network integration" rain and sewage diversion reconstruction, municipal pipe network construction commonly used method has pipe jacking method, open cut method and so on. Its pipe jacking method is mainly constructed for pipe jacking working well, and the pipe jacking working well mainly has open caisson, support excavation and inverted shaft and other forms, wherein open caisson construction has great disturbance to the surrounding environment, and support excavation needs to build temporary internal support and support system, and the process is many and the cost is high. Therefore, inverted shaft has the advantages of simple process, low site requirement, small influence on the surrounding environment and so on, and is widely promoted and applied. In order to ensure the stability of the inverted shaft wall, a full support bracket is usually used as a formwork support system, and the formwork support system needs to be assembled and disassembled once for each pouring of the shaft wall concrete. After the scaffold is disassembled, the next section of earth excavation can be carried out. The construction period is long, and the safety risk of vertical lifting of the formwork and scaffold is large each time. The construction cost is high, and the concrete construction quality is difficult to guarantee. The construction progress is also very slow. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the utility model aims to provide an inverted shaft vertical suspension type mobile support structure, which solves the problem of great safety risk and inability to guarantee the construction period in the inverted shaft excavation and support construction process due to repeated disassembly of the formwork and support system and multiple vertical lifting.

[0004] To achieve the above object, the utility model provides the following technical scheme.

[0005] An inverted shaft vertical suspension type mobile support structure, characterized in that it comprises: support screws reserved outside the steel mesh of each section of inverted shaft wall, hooks reserved at the top edge of the steel mesh of each section of inverted shaft wall, a hand-operated hoist and a formwork support system; the support screws penetrate through the formwork support system to fix the formwork support system at the designed position of the inverted shaft wall pouring, and the top of the formwork support system is connected with the hooks through the hand-operated hoist, so that the formwork support system can be vertically suspended and moved through the hand-operated hoist after being separated from the fixing of the support screws.

[0006] Preferably, the formwork support system is assembled by a plurality of formwork support assemblies; the formwork support assembly comprises a shaped formwork and a support frame.

[0007] Preferably, 2 to 4 hooks are reserved at the installation position of each formwork support assembly, so that each formwork support assembly can be connected to the hooks one by one through hand hoists corresponding to the number of hooks.

[0008] Preferably, the forming template includes a panel, vertical stiffening ribs and transverse stiffening ribs arranged in a grid pattern on the back of the panel, and connecting ears provided on the top of the panel for connecting to a hand hoist.

[0009] Preferably, the support frame includes vertical inner support columns, vertical outer support columns, transverse reinforcement beams connected between the vertical inner support columns or between the vertical outer support columns, and connecting support beams; the tops of the vertical outer support columns are connected and fixed to the vertical inner support columns through transverse reinforcement beams, and the connecting support beams are connected between the transverse reinforcement beams arranged at the bottoms of the vertical inner support columns and the vertical outer support columns, thereby forming a support system with a triangular cross-section of the support frame.

[0010] Preferably, the support frame further includes a scissors brace arranged between adjacent vertical outer support columns.

[0011] Preferably, the vertical stiffening ribs and the vertical inner support columns are provided with screw holes that cooperate with each other.

[0012] Preferably, the panel is provided with screw through holes cooperating with the support screws, and the transverse reinforcing beam has two paths arranged at the bottom of the vertical outer support column and with gaps reserved for the support screws at corresponding positions to pass through.

[0013] Preferably, the transverse reinforcing beam is provided with a jacking socket, and the jacking socket is used for installing a supporting jacking and tightening panel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention reserves support screws and hooks on the steel mesh of the inverted well wall, and uses the support screws to penetrate the formwork support system to fix the formwork support system at the designed position for pouring the inverted well wall, and connects the top of the formwork support system to the hook through a hand winch, which not only ensures that the formwork support system is close to the inverted well wall to realize the pouring construction of the concrete of the inverted well wall; and after the concrete pouring of a section of the inverted well wall is completed, the formwork system can be It is fixed in situ on the well wall while the excavation of the next section of the inverted well wall is carried out. After the excavation of the next section of the inverted well wall and the construction of the reinforcement are completed, the connection end of the previous section of the formwork support system can be removed, so that the formwork support system can be lifted and moved vertically by a hand winch after being separated from the fixation of the support screw, and then moved to the next section of the well wall for installation and use. It can not only save the repeated erection and lifting construction of the traditional support system to improve construction efficiency and safety, but also ensure that the support and excavation of the inverted well are synchronized and flow-line operations, reducing construction costs. The idea of ​​this utility model is clever, convenient and efficient. It solves the problem that during the excavation and support construction of the inverted well, the formwork and support system are repeatedly removed and lifted up and down many times, which increases the risk of repeated lifting, and makes it impossible for excavation and support to form a synchronized flow-line operation and cannot guarantee the construction period. It has strong versatility and good social benefits as well as good prospects for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural diagram of the support structure of the utility model;

[0016] Figure 2 Schematic diagram of the three-dimensional structure of the formwork support system;

[0017] Figure 3 Schematic diagram of the three-dimensional structure of the formwork support assembly;

[0018] Figure 4 Schematic diagram of the three-dimensional structure of the shaping template;

[0019] Figure 5 Schematic diagram of the three-dimensional structure of the support frame;

[0020] Figure 6 This is a schematic diagram of the construction of the first section of the well body and the first section of the well wall;

[0021] Figure 7 This is a schematic diagram of earth excavation under in-situ support of formwork;

[0022] Figure 8 This is a schematic diagram of the simultaneous construction of steel bar binding and mobile support;

[0023] The meanings of the marks in the above figure are: inverted well wall 1, formwork support system 2, formwork support assembly 3, shaped formwork 31, panel 311, screw through-hole 3111, vertical stiffening rib 312, transverse stiffening rib 313, connecting ear 314, screw hole 315, support frame 32, vertical inner support column 321, vertical outer support column 322, connecting support beam 323, transverse reinforcement beam 324, scissors support 325, top support socket 326, support screw 4, hook 5, hand hoist 6, excavator 7, steel mesh 8, support top support 9. DETAILED DESCRIPTION

[0024] The present invention is further described below in the form of specific embodiments in conjunction with the accompanying drawings. It should be noted that the following embodiments are merely illustrative of the present invention in the form of examples, but the scope of protection of the present invention is not limited thereto. The embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] A vertical hanging mobile support structure for an inverted well, please refer to Figures 1 to 8 It includes: support screws 4 reserved on the outside of the steel mesh of each section of the inverted well wall 1, hooks 5 reserved on the top edge of the steel mesh of each section of the inverted well wall 1, a hand hoist 6, and a formwork support system 2; the support screws 4 pass through the formwork support system 2 to fix the formwork support system 2 at the designed position for pouring the inverted well wall 1, and the top of the formwork support system 2 is connected to the hook 5 through the hand hoist 6, so that the formwork support system 2 can be moved vertically through the hand hoist 6 after being separated from the fixation of the support screws 4.

[0027] In order to facilitate the on-site installation and hanging movement of the formwork support system, further, in a preferred embodiment, please refer to Figure 2 , the formwork support system is assembled from several formwork support components; please refer to Figure 3 The formwork support assembly includes a fixed formwork 31 and a support frame 32; wherein, the fixed formwork 31 and the support frame 32 are both fixed steel structure components, and the support frame 32 is the main load-bearing component used to withstand the load during the concrete construction process of each section of the inverted well wall.

[0028] Further, in a preferred embodiment, see Figure 12 to 4 hooks 5 are reserved at the installation position of each formwork support component, so that each formwork support component 3 can be connected to the hook 5 one by one through a hand hoist 6 corresponding to the number of hooks, thereby ensuring the stability of the formwork support system during the vertical movement and lowering process.

[0029] Further, in a preferred embodiment, see Figure 3 The standardized template 31 is a standardized steel structure component, and the standardized template 31 includes a panel 311, vertical stiffening ribs 312 and transverse stiffening ribs 313 arranged in a grid pattern on the back of the panel 311, and a connecting ear 314 provided on the top of the panel 311 for connecting to the hand hoist; wherein, the panel 311 is made of formed steel plates according to the height and length of each section of the inverted well wall 1, and the vertical stiffening ribs 312 and transverse stiffening ribs 313 are formed steel plates and are welded to the back of the panel 311 to form a grid reinforcement.

[0030] Further, in a preferred embodiment, see Figure 4 The support frame 32 includes vertical inner support columns 321, vertical outer support columns 322, transverse reinforcement beams 324 connected between the vertical inner support columns 321 or between the vertical outer support columns 322, and connecting support beams 323; the tops of the vertical outer support columns 322 are connected and fixed to the vertical inner support columns 321 through transverse reinforcement beams 324, and the connecting support beams 323 are connected between the transverse reinforcement beams 324 set at the bottoms of the vertical inner support columns 321 and the vertical outer support columns 322, so that the support frame 32 forms a support system with a triangular cross-section.

[0031] In order to improve the overall stability of the support frame 32, further, in a preferred embodiment, refer to Figure 5 The support frame 32 also includes a scissors support 325 arranged between adjacent vertical outer support columns 322.

[0032] Further, in a preferred embodiment, see Figure 4 and Figure 5 The vertical reinforcing ribs 312 and the vertical inner support columns 321 are provided with screw holes 315 that cooperate with each other, so that the panel and the support frame can be firmly connected by the cooperation of bolts and the screw holes 315.

[0033] Further, in a preferred embodiment, see Figure 4 and Figure 5The panel 311 is provided with screw through holes 3111 that cooperate with the support screws, and the transverse reinforcement beams 324 have two sets at the bottom of the vertical outer support column 322 and reserve gaps for the support screws at the corresponding positions to pass through; based on this structural setting, the support screws can pass through the screw through holes 3111 at the corresponding positions and the gap between the two transverse reinforcement beams 324 set at the bottom of the vertical outer support column 322, and are fixed by high-strength bolts, so that the formwork support system can be fixed at the designed position of the casting inverted well wall.

[0034] Further, in a preferred embodiment, see Figure 2 The transverse reinforcing beam 324 is provided with a jacking socket 326 , and the jacking socket 326 is used to install the supporting jack 9 to tighten the panel 311 .

[0035] Example 2

[0036] The method for excavating an inverted well using the utility model of the vertical hanging mobile support structure for the inverted well comprises the following steps:

[0037] S1. Prefabricated formwork support system

[0038] Prefabricate the formwork support system in the factory according to the size and design parameters of the inverted well;

[0039] S2. Construction of the first section of the well body and the first section of the well wall

[0040] See also Figure 6 , use the telescopic arm excavator 7 to excavate the earthwork of the first section of the well body and the first section of the well wall in layers, then carry out steel bar binding construction within the range of the first section of the well wall, and reserve support screws 4 and hooks 5 on the outer side and top edge of the steel mesh 8 respectively; 2 to 4 hooks are reserved at the installation position of each formwork support component, so that each formwork support component 3 can be connected to the hook 5 one by one through the hand hoist 6 corresponding to the number of hooks 5, so as to ensure the stability of each formwork support component during the lowering process; then the formwork support system is fixed to the designed position for pouring the first section of the well wall through the support screws reserved in the first section of the well wall, and the hooks reserved in the first section of the well wall are fixedly connected to the top of the formwork support system through the hand hoist, finally, the formwork surface of the formwork support system is evenly coated with a release agent, and then the concrete pouring construction of the first section of the well wall is carried out;

[0041] S3. Excavation under in-situ formwork support

[0042] See also Figure 7After the concrete of the first section of the shaft wall reaches initial setting, the telescopic arm excavator 7 is directly used to excavate the second section of the shaft body and the second section of the shaft wall in layers, and the formwork support system is not removed at this time; during the excavation of the second section of the shaft body and the second section of the shaft wall, the formwork support system is still suspended and fixed above the second section of the shaft body and the second section of the shaft wall by the support screws and the reserved hooks of the first section of the shaft wall in cooperation with the hand winch, and is then fixed close to the shaft wall. Therefore, not removing the formwork support system will not affect the excavation of the shaft. On the contrary, since the removal step of the formwork support system is omitted, not only can the construction period be shortened, but the formwork support system fixed in situ on the shaft wall of the inverted shaft can also protect the formed concrete;

[0043] S4. Synchronous construction of steel bar binding and mobile support

[0044] See also Figure 8 After the excavation is completed, the steel bar binding construction is carried out in the second section of the well wall, and support screws and hooks are reserved on the outside and top edge of the steel mesh respectively; 2 to 4 hooks are reserved at the installation position of each formwork support component, so that each formwork support component can be connected to the hook one by one through a hand winch corresponding to the number of hooks, thereby ensuring the stability of each formwork support component during the lowering process; while the steel bar binding construction is being carried out, the formwork support system is detached from the support screws reserved for the first section of the well wall, and after complete detachment, the formwork support system is lowered to the bottom of the second section of the well body using a hand winch; when lowering the formwork support system, the wire rope can be pulled by the on-site excavator to connect to the formwork support system, so that the formwork support system can be moved horizontally to cooperate with the hand winch to lower the formwork support system; then the formwork support system is fixed to the designed position for pouring the second section of the well wall through the support screws reserved for the second section of the well wall, and the hooks reserved for the second section of the well wall are fixedly connected to the top of the formwork support system through the hand winch;

[0045] In this step, support screws and hooks are reserved on the steel mesh of the inverted well wall, and the support screws are used to penetrate the formwork support system to fix the formwork support system at the designed position for pouring the inverted well wall, and the top of the formwork support system is connected to the hook through a hand hoist. This not only ensures that the formwork support system is vertically suspended close to the inverted well wall to realize the pouring of concrete on the inverted well wall, but also after the concrete pouring of one section of the inverted well wall is completed, the formwork system can be fixed in situ on the well wall while the excavation of the next section of the inverted well wall is carried out. After excavation and reinforcement construction are completed, the butterfly nuts connecting the previous section's formwork support system and the support screws can be removed, so that the formwork support system can be suspended and moved by a hand winch after being freed from the fixation of the support screws, and moved to the next section of the shaft wall for installation and use. This not only eliminates the need for repeated erection and lifting construction of traditional support systems, thereby improving construction efficiency and safety, but also ensures that the inverted shaft support and excavation are synchronized and flow-lined, reducing construction costs. In addition, the vertical mobile support of the formwork support system can be carried out simultaneously with the steel bar binding, further shortening the construction period.

[0046] S5. Concrete pouring

[0047] First, evenly apply the release agent on the formwork surface of the formwork support system, and then proceed with the concrete pouring construction of the second section of the shaft wall;

[0048] S6, cyclically repeating steps S3, S4, and S5, using the formwork support system to perform vertical mobile support to complete the earthwork excavation of the subsequent section well body, as well as the earthwork excavation, steel bar binding, mobile support, and concrete pouring of the subsequent section well wall, until reaching the designed position of the inverted well bottom;

[0049] During the above construction process, after completing the construction of 2 to 3 sections of the shaft wall, while carrying out the simultaneous construction of the reinforcement binding and mobile support of the next section of the shaft wall, when the formwork support system is lowered vertically to the bottom of the next section of the shaft body, the formwork in the formwork support system is polished and cleaned to ensure the surface quality of the concrete.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, nor to the details set forth herein. Furthermore, the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations coming within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention.

[0051] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An inverted well hanging type mobile support structure, characterized in that: include: A support screw (4) is reserved on the outside of the steel mesh of each section of the inverted well wall (1), a hook (5) is reserved on the top edge of the steel mesh of each section of the inverted well wall (1), a hand winch (6), and a formwork support system (2); the support screw (4) passes through the formwork support system (2) to fix the formwork support system (2) at the designed position for casting the inverted well wall (1), and the top of the formwork support system (2) is connected to the hook (5) through the hand winch (6), so that the formwork support system (2) can be moved in a hanging manner through the hand winch (6) after being separated from the fixation of the support screw (4).

2. The inverted well hanging type movable support structure according to claim 1, characterized in that: The formwork support system (2) is assembled from a plurality of formwork support components (3); the formwork support components (3) include a shaped formwork (31) and a support frame (32).

3. The inverted well hanging type movable support structure according to claim 2, characterized in that: Two to four hooks (5) are reserved at the installation position of each formwork support assembly so that each formwork support assembly (3) can be connected to the hooks (5) one by one through hand chain hoists (6) corresponding to the number of hooks.

4. The inverted well hanging type movable support structure according to claim 2, characterized in that: The shaping template (31) includes a panel (311), vertical stiffening ribs (312) and transverse stiffening ribs (313) arranged in a grid pattern on the back of the panel (311), and a connecting ear (314) provided on the top of the panel (311) for connecting to a hand chain hoist (6).

5. The inverted well hanging type movable support structure according to claim 4, characterized in that: The support frame (32) includes vertical inner support columns (321), vertical outer support columns (322), transverse reinforcement beams (324) connected between the vertical inner support columns (321) or between the vertical outer support columns (322), and connecting support beams (323); the tops of the vertical outer support columns (322) are connected and fixed to the vertical inner support columns (321) via the transverse reinforcement beams (324), and the connecting support beams (323) are connected between the transverse reinforcement beams (324) provided at the bottoms of the vertical inner support columns (321) and the vertical outer support columns (322), thereby forming a support system with a triangular cross-section on the support frame (32).

6. The inverted well hanging type movable support structure according to claim 5, characterized in that: The support frame (32) further includes scissor struts (325) arranged between adjacent vertical outer support columns (322).

7. The inverted well hanging type movable support structure according to claim 5, characterized in that: The vertical stiffening rib (312) and the vertical inner support column (321) are provided with screw holes (315) that cooperate with each other.

8. The inverted well hanging type movable support structure according to claim 5, characterized in that: The panel (311) is provided with screw through holes (3111) that cooperate with the support screws (4), and the transverse reinforcement beam (324) has two gaps that are arranged at the bottom of the vertical outer support column (322) and reserve gaps for the support screws (4) at corresponding positions to pass through.

9. The inverted well hanging type movable support structure according to claim 5, characterized in that: A jacking socket (326) is provided on the transverse reinforcing beam (324), and the jacking socket (326) is used for installing a supporting jacking and tightening panel (311).

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