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CN-224214190-U - Two lining construction steel forms of passageway are dug secretly to small section of being used for non-rectangle

CN224214190UCN 224214190 UCN224214190 UCN 224214190UCN-224214190-U

Abstract

The utility model relates to the technical field of tunnel engineering construction, in particular to a steel mould for a non-rectangular small-section underground excavation channel secondary lining construction, which comprises a device body, wherein a transverse supporting component is transversely arranged on the inner side of the device body, and a disc buckle frame component is longitudinally arranged on the inner side of the device body. The steel mould after the improvement firmly presses first sealing gasket and second sealing gasket through first gag lever post and second gag lever post, can effectually seal, has guaranteed the sealed effect after the installation is accomplished. Through having seted up first spacing groove and second spacing groove, can play the effect of location and direction to the installation of side form and top mould for installation effectiveness promotes to some extent, and the effectual condition that appears the position deviation in having avoided the installation takes place, through having set up support piece, makes the side form after the installation is accomplished, can effectually carry out corresponding supporting effect through support piece, has avoided the side form to appear the condition of empting.

Inventors

  • WANG WENQIANG
  • LI QINGZHOU
  • LIU RONGXU
  • ZHANG HAO
  • CHEN LINFENG
  • QIN YU
  • QI ZHIBO
  • XIONG XIAN

Assignees

  • 中国建筑第四工程局有限公司
  • 中建四局土木工程有限公司

Dates

Publication Date
20260508
Application Date
20250620

Claims (7)

  1. 1. The steel mould for the secondary lining construction of the non-rectangular small-section underground excavation channel comprises a device body (1) and is characterized in that a transverse supporting component (2) is transversely arranged on the inner side of the device body (1), and a disc buckle frame component (3) is longitudinally arranged on the inner side of the device body (1); The device comprises a device body (1) and is characterized in that the device body comprises a bottom die (101), first limiting rods (102) are fixedly connected to two sides of the top of the bottom die (101), side dies (103) are slidably connected to two sides of the top of the bottom die (101) and located outside the first limiting rods (102), threaded slotted holes are formed in two sides of the top of the bottom die (101), and threaded slotted holes are formed in the upper portion of one end of each side die (103); The transverse supporting assembly (2) comprises first I-steel (201) which are uniformly arranged at one end of the side die (103), a second I-steel (202) is arranged at the top of the first I-steel (201), and a first wood square (203) is uniformly arranged at one end of the first I-steel (201); The tray buckle frame assembly (3) comprises a base (301) which is uniformly arranged on a bottom die (101), a vertical rod sleeve (302) is arranged at the top of the base (301), an adjusting frame (303) is arranged at the top of the vertical rod sleeve (302), a second wood square column (304) is arranged at the top of the adjusting frame (303), the vertical rod sleeves (302) are connected through a transverse installation rod (305), and an oblique installation rod (306) is arranged at the lower part of each vertical rod sleeve (302).
  2. 2. The steel mould for the non-rectangular small-section underground excavation channel secondary lining construction, as claimed in claim 1, is characterized in that the device body (1) further comprises a first mounting plate (104), a second mounting plate (105) and a third mounting plate (106), supporting pieces (107) are fixedly connected to the tops of the first mounting plate (104), the second mounting plate (105) and the third mounting plate (106), a top mould (108) is slidably connected to the top of the side mould (103), second limiting rods (109) are fixedly connected to the two ends of the bottom of the top mould (108), fourth mounting plates (1010) are uniformly and fixedly connected to the two ends of the inner side of the top mould (108), vibrating windows (1011) are uniformly formed in one end of the side mould (103), and the first mounting plate (104), the second mounting plate (105) and the third mounting plate (106) are sequentially and fixedly connected to the lower end of the side mould (103).
  3. 3. The steel mould for the secondary lining construction of the non-rectangular small-section underground excavation channel of claim 1, wherein the transverse supporting component (2) further comprises a steel pipe (204), two ends of the steel pipe (204) are connected with threaded columns (205) in a threaded mode, one ends of the threaded columns (205) are fixedly connected with limiting blocks (206), limiting frames (207) are connected to the outer portions of the threaded columns (205) in a rotating mode, and the steel pipe (204) is located between the first wood beams (203).
  4. 4. The steel mould for the secondary lining construction of the non-rectangular small-section underground excavation channel, as set forth in claim 1, is characterized in that a first limit groove which is consistent with the external dimension structure of the first limit rod (102) is formed at the bottom of the side mould (103), and a sealing gasket is installed at the inner side of the first limit groove.
  5. 5. The steel mould for the non-rectangular small-section underground excavation channel secondary lining construction, as claimed in claim 2, is characterized in that a second limit groove consistent with the external size structure of the second limit rod (109) is formed in the top of the side mould (103), a sealing gasket is mounted on the inner side of the second limit groove, mounting holes are formed in the first mounting plate (104), the second mounting plate (105), the third mounting plate (106) and the fourth mounting plate (1010), and pouring windows are formed in the top of the top mould (108).
  6. 6. The steel mould for the secondary lining construction of the non-rectangular small-section underground excavation channel, as claimed in claim 3, is characterized in that the inner sides of the two ends of the steel pipe (204) are provided with thread grooves, the middle part of one end of the limiting frame (207) is provided with a smooth slot hole, and the thread column (205) and the limiting block (206) form a rotary structure.
  7. 7. The steel mould for the secondary lining construction of the non-rectangular small-section underground excavation channel of claim 1, wherein the mounting holes are formed in the periphery of the bottom of the base (301), a plurality of upright sleeves (302) are arranged in total, the base (301), the upright sleeves (302), the adjusting frame (303) and the second wood purlin (304) are combined into a group, and a plurality of groups are arranged in total.

Description

Two lining construction steel forms of passageway are dug secretly to small section of being used for non-rectangle Technical Field The utility model relates to the technical field of tunnel engineering construction, in particular to a secondary lining construction steel mould for a non-rectangular small-section underground excavation channel. Background The tunnel engineering construction is a systematic engineering for excavating channels and constructing permanent structures in complex environments such as underground or mountain bodies and the like, covers multiple working procedures such as geological investigation, excavation supporting and lining construction and the like, needs to comprehensively cope with challenges such as stratum stress, groundwater, rock-soil geological properties and the like, realizes channel penetration through technologies such as a drilling and blasting method, a shield method, a hidden excavation method and the like, and ensures structural safety and use functions by depending on primary supporting and secondary lining (secondary lining). The secondary lining forming difficulty of the underground excavation channel under the conditions of non-rectangular (such as U-shaped, trapezoid and other special-shaped cross sections) and small-size cross sections is solved. The installation and the disassembly of the steel mould are realized in a limited space, the dimensional accuracy, the surface flatness and the mechanical property of the two-lining structure are ensured by combining a concrete pouring process, the technical bottlenecks of limited space, inconvenient operation, difficult molding quality control and the like in small-section construction are overcome, and equipment support is provided for the safe construction and long-term stability of the undercut tunnel. The design process of the utility model finds that the prior art has the following problems: The condition that the sealing effect is bad can exist in the process of installing in general steel mould, and then lead to carrying out concrete placement's in-process, the splice takes place the condition that oozes thick liquid and leaks thick liquid easily, and lack corresponding guide function in the installation, thereby can take place the skew in the time of leading to the installation, and then the required staff carries out the repetitive adjustment process, time cost has also been increased when having increased the labour, bottom die and side form usually only adopt fixing bolt to install and fixed work simultaneously, make the holding power of side form not enough, thereby can lead to the holding power of concrete placement in-process not enough, influence follow-up secondary lining's efficiency, can lead to the side form to appear empting the condition and take place when serious, thereby the security of staff when being under construction reduces to some extent. Disclosure of utility model The utility model aims to provide a second lining construction steel mould for a non-rectangular small-section underground excavation channel, which is used for solving the problems in the background technology. The steel mould for the non-rectangular small-section underground excavation channel secondary lining construction comprises a device body, wherein a transverse supporting component is transversely arranged on the inner side of the device body, and a disc buckle frame component is longitudinally arranged on the inner side of the device body. The device body comprises a bottom die, first limiting rods are fixedly connected to two sides of the top of the bottom die, side dies are slidably connected to two sides of the top of the bottom die, threaded slotted holes are formed in two sides of the top of the bottom die, and threaded slotted holes are formed in the upper portion of one end of each side die. The transverse supporting assembly comprises first I-steel which is uniformly arranged at one end of the side die, second I-steel is arranged at the top of the first I-steel, and first wood beams are uniformly arranged at one end of the first I-steel. The tray buckle frame assembly comprises a base which is uniformly arranged on a bottom die, a vertical rod sleeve is arranged at the top of the base, an adjusting frame is arranged at the top of the vertical rod sleeve, a second wood purlin is arranged at the top of the adjusting frame, the vertical rod sleeves are connected through a transverse installation rod, and an oblique installation rod is arranged at the lower part of the vertical rod sleeve. Further preferably, the device body further comprises a first mounting plate, a second mounting plate and a third mounting plate, the tops of the first mounting plate, the second mounting plate and the third mounting plate are fixedly connected with a supporting piece, the top of the side die is slidably connected with a top die, two ends of the bottom of the top die are fixedly connected with second limiting rods, two en