Positioning method of trough-type embedded parts in the side wall of cast-in-place underground comprehensive pipe gallery

Abstract

The invention discloses a method for positioning a trough-type embedded part in a side wall of a cast-in-place underground comprehensive pipe gallery, which solves the problem of how to firmly and accurately position the trough-type embedded part. The invention uses a pre-embedded steel bar grid in the side wall of the precast pipe gallery to fix and position the trough-type embedded part. Since the position of the vertical steel bars in the on-site pre-embedded steel bar grid is not fixed, horizontal long through holes are arranged on the trough-type embedded part, and two pairs of screws whose positions can be adjusted at will are arranged in the horizontal long through holes. The two pairs of screws are used to find the locatable vertical steel bars, and the found positioned vertical steel bars are fixed to the two pairs of screws and the trough-type embedded part by locking nuts, thereby realizing accurate positioning and firm fixation of the trough-type embedded part, overcoming the impact force of subsequent concrete pouring and the impact force of vibration, and ensuring the accurate positioning of the trough-type embedded part in the concrete.

Description

Technical Field

[0001] The invention relates to a cast-in-place concrete underground comprehensive pipe gallery, and in particular to a structure and a positioning method for positioning groove-type embedded parts embedded in the side wall of the pipe gallery when the concrete is poured into the underground comprehensive pipe gallery. Background Art

[0002] In the underground comprehensive pipe gallery used for the centralized laying of power, communication, water supply and drainage, heat, gas and other pipelines, the pre-buried trough-type embedded parts in the concrete pipe gallery are the basis for the high-bearing capacity requirements of various pipelines. The trough-type embedded parts are poured in the concrete. Before pouring the concrete, they need to be accurately positioned so that they can play a normal supporting role. At present, the positioning construction method for the trough-type embedded parts is: after the steel bars of the underground comprehensive pipe gallery concrete are tied, the trough-type embedded parts are directly welded to the steel mesh. After welding, the formwork is supported and concrete is poured. Due to the error in the spacing of the steel bars, the trough-type embedded parts are directly welded to the steel mesh. Welding causes positioning deviations of the trough-type embedded parts, which results in a waste of energy in controlling the positioning of the embedded trough-type embedded parts. In addition, during the subsequent concrete unloading and vibration, the impact force and vibration force of the concrete pouring can easily lead to desoldering and misalignment of the welding between the trough-type embedded parts and the steel mesh, and even the loss of the trough-type embedded parts after the concrete pouring formwork is removed, affecting the accurate setting of the embedded trough. In addition, due to the positioning deviations of the trough-type embedded parts, there is a common defect of inconsistent thickness of the concrete protective layer on the outside of the trough-type embedded parts. How to accurately position the trough-type embedded parts has become a difficult problem that must be solved on site. Summary of the invention

[0003] The invention provides a method for positioning a slot-type embedded part in a side wall of a cast-in-place underground comprehensive pipe gallery, which solves the technical problem of how to firmly and accurately position the slot-type embedded part.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A positioning structure for a trough-type embedded part in a side wall of a cast-in-place underground comprehensive pipe gallery, comprising a steel mesh frame embedded in the precast pipe gallery side wall, a trough-type embedded part, a half-mouth-shaped left template and a right template, the steel mesh frame is composed of spaced vertical steel bars and horizontal stirrups, the steel mesh frame is arranged in the half-mouth-shaped left template, the right end of the half-mouth-shaped left template is butted with the right template, a trough-type embedded part is arranged between the steel mesh frame and the right template, a rear horizontal long strip through hole and a front horizontal long strip through hole are respectively arranged on the side vertical plates of the trough-type embedded part, a pair of rear screws are movably arranged in the rear horizontal long strip through hole along the left and right horizontal directions, a pair of front screws are movably arranged in the front horizontal long strip through hole along the left and right horizontal directions, a screw tail positioning ring is arranged at the tail of each screw of the pair of rear screws and the pair of front screws, and a screw is arranged at the tail end of each screw of the pair of rear screws and the pair of front screws The tail end is connected with a screw hole, and a screw tail positioning ring is arranged on the right side of the horizontal long strip through hole; on each screw of a pair of rear screws on the left side of the rear horizontal long strip through hole, a rear screw positioning nut is screwed, and on each screw of a pair of front screws on the left side of the front horizontal long strip through hole, a front screw positioning nut is screwed; on the right side template, a pair of through holes for connecting screws on the rear side and a pair of through holes for connecting screws on the front side are respectively arranged; the two screw heads of a pair of front screws are clamped on both sides of a vertical steel bar, and the front pair of connecting screws, along the horizontal direction from right to left, pass through the through holes of the front pair of connecting screws, and are screwed together with the screw tail end connecting screw holes of a pair of front screws; the two screw heads of a pair of rear screws are clamped on both sides of another vertical steel bar, and the rear pair of connecting screws, along the horizontal direction from right to left, pass through the through holes of the rear pair of connecting screws, and are screwed together with the screw tail end connecting screw holes of a pair of rear screws.

[0006] A pair of front screw rods and a pair of rear screw rods are arranged in the gap between the upper and lower horizontal stirrups; a gap of uniform width is arranged between the right side facade of the groove type embedded part and the right side formwork for forming a concrete pouring protective layer.

[0007] A method for positioning a trough-type embedded part in a cast-in-place underground comprehensive pipe gallery side wall comprises a steel mesh frame embedded in the precast pipe gallery side wall, a trough-type embedded part, a half-mouth-shaped left template and a right template, wherein the steel mesh frame is composed of spaced vertical steel bars and a plurality of horizontal stirrups, and is characterized by the following steps:

[0008] The first step is to respectively set a rear horizontal long strip through hole and a front horizontal long strip through hole on the side vertical plate of the slot-type embedded part, and a pair of rear screws are movably connected in the rear horizontal long strip through hole along the left and right horizontal directions, and a pair of front screws are movably connected in the front horizontal long strip through hole along the left and right horizontal directions, and a screw tail positioning ring is set at the tail of each screw, and each screw tail positioning ring is set on the right side of the horizontal long strip through hole, and a screw positioning nut is screwed on each screw, and the screw positioning nuts are set on the left side of the horizontal long strip through hole, and a screw head is set at the left end of each screw, and a screw tail end connecting screw hole is set at the right end of each screw;

[0009] The second step is to first set the half-mouth-shaped left template to the left side of the steel mesh frame, so that the steel mesh frame is set in the half-mouth-shaped left template, and then place the groove-type embedded parts with a pair of rear screws and a pair of front screws on the right side of the steel mesh frame, so that the left ends of the pair of rear screws and the left ends of the pair of front screws pass through two adjacent horizontal stirrups and are set in the gap of the steel mesh frame;

[0010] The third step is to locate the position of the slot-type embedded part according to the design requirements, and then, in the front-to-back direction, adjust the position of a pair of front screws in the front horizontal long through-hole by moving, so that the two screw heads of the pair of front screws are clamped on both sides of a vertical steel bar, and the pair of front screws are fixedly connected to the slot-type embedded part by tightening the two front screw positioning nuts respectively, and at the same time, the two screw heads of the pair of front screws are close to and clamped on both sides of a vertical steel bar, so that the front end of the slot-type embedded part is fixedly connected to a vertical steel bar through the pair of front screws; in the same way, the rear end of the slot-type embedded part is fixedly connected to another vertical steel bar through a pair of rear screws;

[0011] Step 4: Butt the right side template to the right side of the half-mouth-shaped left side template, and at the same time, make the left side elevation of the right side template top-connected to the right end side elevation of a pair of front screws and the right end side elevation of a pair of rear screws, and form a gap of uniform width for concrete pouring protective layer between the right side elevation of the groove-type embedded part and the right side template;

[0012] Step 5: According to the positions of a pair of front screws and a pair of rear screws, drill through holes for a pair of rear connecting screws and a pair of front connecting screws on the right template;

[0013] Step 6. Pass a pair of connecting screws on the front side through the connecting holes of the pair of connecting screws on the front side along the horizontal direction from right to left, and then screw them together with the connecting screw holes at the tail ends of the pair of front screws; pass a pair of connecting screws on the rear side through the connecting holes of the pair of connecting screws on the rear side along the horizontal direction from right to left, and then screw them together with the connecting screw holes at the tail ends of the pair of rear screws, so as to fix the left side formwork and the right side formwork of the half-mouth shape together, forming the concrete pouring space for the side wall of the underground comprehensive pipeline corridor.

[0014] Concrete is poured in the concrete pouring space of the side wall of the underground comprehensive pipe gallery to form the side wall of the underground comprehensive pipe gallery. After the poured concrete solidifies, a pair of connecting screws on the front side and a pair of connecting screws on the rear side are unscrewed, and the half-mouth-shaped left and right templates are removed to obtain the concrete side wall of the underground comprehensive pipe gallery with accurately embedded groove-type embedded parts.

[0015] The present invention uses the embedded steel bar grid in the side wall of the precast pipe gallery to fix and position the trough-type embedded parts. Since the position of the vertical steel bars in the on-site embedded steel bar grid is not fixed, horizontal long through holes are provided on the trough-type embedded parts, and two pairs of screws whose positions can be adjusted at will are provided in the horizontal long through holes. The two pairs of screws are used to find the locatable vertical steel bars, and the found positioned vertical steel bars are fixed to the two pairs of screws and the trough-type embedded parts through locking nuts, thereby achieving accurate positioning and firm fixation of the trough-type embedded parts, overcoming the impact force of subsequent concrete pouring and vibration, and ensuring the accurate positioning of the trough-type embedded parts in the concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the present invention in a top view;

[0018] Figure 3 It is a schematic structural diagram of the groove type embedded part 5 of the present invention in the right rear viewing direction;

[0019] Figure 4 It is a schematic structural diagram of the groove type embedded part 5 of the present invention in the left front viewing direction;

[0020] Figure 5 It is a diagram showing the matching relationship between the groove type embedded part 5 and the screw mechanism of the present invention. Implementation

[0021] The present invention is described in detail below in conjunction with the accompanying drawings:

[0022] A positioning structure for a trough-type embedded part in the side wall of a cast-in-place underground comprehensive pipe gallery, comprising a steel mesh frame embedded in the precast pipe gallery side wall, a trough-type embedded part 5, a half-mouth-shaped left side template 3 and a right side template 4, wherein the steel mesh frame is composed of spaced vertical steel bars 1 and horizontal stirrups 2, each vertical steel bar 1 is generally arranged in an array, and each horizontal stirrup 2 is spaced horizontally from bottom to top; the steel mesh frame is arranged in the half-mouth-shaped left side template 3, and the right side template 4 is butt-jointed at the right end of the half-mouth-shaped left side template 3, and the half-mouth-shaped left side template 3 and the right side template 4 are butt-jointed to form a closed concrete pouring space, and a trough-type embedded part 5 is arranged between the steel mesh frame and the right side template 4, and the trough-type embedded part 5 is generally arranged near At the inner side elevation of the side wall of the pipe gallery, a concrete protective layer for protecting the trough-type embedded parts is provided. The trough-type embedded parts 5 are parts in the shape of channel steel and are arranged along the front and rear horizontal directions. On the side vertical plates of the trough-type embedded parts 5, rear horizontal long strip through holes 7 and front horizontal long strip through holes 8 are respectively arranged. In the rear horizontal long strip through holes 7; along the left and right horizontal directions, a pair of rear screws 9 are movably arranged. The pair of rear screws 9 are two screws arranged side by side. In the front horizontal long strip through holes 8, a pair of front screws 10 are movably arranged along the left and right horizontal directions. At the tail of each screw of the pair of rear screws 9 and the pair of front screws 10, a screw tail positioning ring 18 is provided. The screw tail positioning ring 18 is fixed at a distance from the right end of the screw. 9 and the tail end of each screw of a pair of front screws 10 are provided with a screw tail end connecting screw hole 19, and a screw tail positioning ring 18 is arranged on the right side of the horizontal long strip through hole; on each screw of a pair of rear screws 9 on the left side of the rear horizontal long strip through hole 7, a rear screw positioning nut 13 is screwed, and on each screw of a pair of front screws 10 on the left side of the front horizontal long strip through hole 8, a front screw positioning nut 14 is screwed; on the right side template 4, a pair of rear connecting screw through holes 11 and a pair of front connecting screw through holes 12 are respectively provided; the two screw heads 17 of a pair of front screws 10 are clamped on both sides of a vertical steel bar 1, and a pair of front connecting screws 16 pass through the front pair of connecting screws in the horizontal direction from right to left. After passing through the through hole 12, it is screwed together with the screw holes 19 of the screw tail ends of a pair of front screws 10; the two screw heads of a pair of rear screws 9 are clamped on both sides of another vertical steel bar 1, and the rear pair of connecting screws 15 pass through the through holes 11 of the rear pair of connecting screws in the horizontal direction from right to left, and are screwed together with the screw holes 19 of the screw tail ends of a pair of rear screws 9; since the distance between the screw tail positioning rings 18 and the right ends of the screws on the four screws is equal, when the left side facade of the right side formwork 4 is abutted against the right end of the screw, it ensures that the width of the gap 6 for forming the concrete pouring protective layer between the right side facade of the groove-type embedded part 5 and the right side formwork 4 is consistent, which lays the foundation for the formation of a concrete protective layer with uniform thickness.

[0023] A pair of front screw rods 10 and a pair of rear screw rods 9 are arranged in the gap between the upper and lower horizontal stirrups 2, so that the two screw rod heads can be easily inserted into the steel mesh frame.

[0024] A method for positioning a trough-type embedded part in the side wall of a cast-in-place underground comprehensive pipe gallery, comprising a steel mesh frame embedded in the precast pipe gallery side wall, a trough-type embedded part 5, a half-mouth-shaped left template 3 and a right template 4, wherein the steel mesh frame is composed of spaced vertical steel bars 1 and multiple horizontal stirrups 2, and is characterized by the following steps:

[0025] The first step is to respectively set a rear horizontal long strip through hole 7 and a front horizontal long strip through hole 8 on the side vertical plate of the groove type embedded part 5, and a pair of rear screws 9 are movably connected in the rear horizontal long strip through hole 7 along the left and right horizontal directions, and a pair of front screws 10 are movably connected in the front horizontal long strip through hole 8 along the left and right horizontal directions. A screw tail positioning ring 18 is provided at the tail of each screw, and each screw tail positioning ring 18 is arranged on the right side of the horizontal long strip through hole, and a screw positioning nut is screwed on each screw, and the screw positioning nuts are arranged on the left side of the horizontal long strip through hole, and a screw head 17 is provided at the left end of each screw, and a screw tail end connecting screw hole 19 is provided at the right end of each screw;

[0026] The second step is to first set the half-mouth-shaped left side template 3 to the left side of the steel mesh frame, so that the steel mesh frame is set in the half-mouth-shaped left side template 3, and then place the groove-type embedded part 5 with a pair of rear screws 9 and a pair of front screws 10 on the right side of the steel mesh frame, so that the left ends of the pair of rear screws 9 and the left ends of the pair of front screws 10 pass through the two adjacent horizontal stirrups 2 and are set in the gap of the steel mesh frame;

[0027] The third step is to locate the position of the slot-type embedded part 5 according to the design requirements, and then, in the front-to-back direction, adjust the position of the pair of front screws 10 in the front horizontal long through hole 8 by moving, so that the two screw heads 17 of the pair of front screws 10 are clamped on both sides of a vertical steel bar 1, and the pair of front screw positioning nuts 14 are tightened respectively, so that the pair of front screws 10 are fixedly connected with the slot-type embedded part 5, and at the same time, the two screw heads 17 of the pair of front screws 10 are close to and clamped on both sides of a vertical steel bar 1, so that the front end of the slot-type embedded part 5 is fixedly connected with a vertical steel bar 1 through the pair of front screws 10; in the same way, the rear end of the slot-type embedded part 5 is fixedly connected with another vertical steel bar 1 through a pair of rear screws 9;

[0028] Step 4: dock the right side template 4 to the right side of the half-mouth-shaped left side template 3, and at the same time make the left side elevation of the right side template 4 top the right end side elevation of a pair of front screws 10 and the right end side elevation of a pair of rear screws 9, and form a gap 6 of uniform width for forming a concrete pouring protective layer between the right side elevation of the groove-type embedded part 5 and the right side template 4;

[0029] Step 5: According to the positions of the pair of front screws 10 and the pair of rear screws 9, drill through holes 11 for the rear pair of connecting screws and through holes 12 for the front pair of connecting screws on the right template 4;

[0030] Step 6. Pass a pair of front connecting screws 16 through the through holes 12 of the front pair of connecting screws along the horizontal direction from right to left, and then screw them together with the screw tail end connecting screw holes 19 of a pair of front screws 10; pass a pair of rear connecting screws 15 through the through holes 11 of the rear pair of connecting screws along the horizontal direction from right to left, and then screw them together with the screw tail end connecting screw holes 19 of a pair of rear screws 9, so as to fix the half-mouth-shaped left side template 3 and the right side template 4 together to form the concrete pouring space of the side wall of the underground comprehensive pipe gallery.

[0031] Concrete is poured in the concrete pouring space of the side wall of the underground comprehensive pipe gallery to form the side wall of the underground comprehensive pipe gallery. After the poured concrete solidifies, a pair of connecting screws 16 on the front side and a pair of connecting screws 15 on the rear side are unscrewed, and the half-mouth-shaped left template 3 and the right template 4 are removed to obtain the concrete side wall of the underground comprehensive pipe gallery with accurately embedded groove-type embedded parts 5; the positioning construction quality of the groove-type embedded parts 5 is ensured.

Claims

1. A method for positioning a trough-type embedded part in the side wall of a cast-in-place underground comprehensive pipe gallery, comprising a steel mesh frame embedded in the precast pipe gallery side wall, a trough-type embedded part (5), a half-mouth-shaped left template (3) and a right template (4), wherein the steel mesh frame is composed of spaced vertical steel bars (1) and a plurality of horizontal stirrups (2), and characterized by the following steps: The first step is to respectively provide a rear horizontal strip through hole (7) and a front horizontal strip through hole (8) on the side vertical plate of the groove-type embedded component (5); a pair of rear screws (9) are movably connected in the rear horizontal strip through hole (7) along the horizontal direction; a pair of front screws (10) are movably connected in the front horizontal strip through hole (8) along the horizontal direction; a screw tail positioning ring (18) is provided at the tail of each screw; each screw tail positioning ring (18) is provided on the right side of the horizontal strip through hole; a screw positioning nut is screwed on each screw; the screw positioning nuts are provided on the left side of the horizontal strip through hole; a screw head (17) is provided at the left end of each screw; and a screw tail connecting screw hole (19) is provided at the right end of each screw; The second step is to first set the half-mouth-shaped left template (3) to the left side of the steel mesh frame so that the steel mesh frame is set in the half-mouth-shaped left template (3), and then place the groove-type embedded part (5) with a pair of rear screws (9) and a pair of front screws (10) on the right side of the steel mesh frame so that the left ends of the pair of rear screws (9) and the left ends of the pair of front screws (10) pass through two adjacent horizontal stirrups (2) and are set in the gap of the steel mesh frame; Step 3: According to the design requirements, the position of the slot-type embedded component (5) is positioned, and then, in the front-to-back direction, the position of the pair of front screws (10) at the front horizontal long through hole (8) is adjusted by moving so that the two screw heads (17) of the pair of front screws (10) are clamped on both sides of a vertical steel bar (1), and the pair of front screw positioning nuts (14) are respectively tightened so that the pair of front screws (10) are fixedly connected to the slot-type embedded component (5), and at the same time, the two screw heads (17) of the pair of front screws (10) are close to and clamped on both sides of a vertical steel bar (1), so that the front end of the slot-type embedded component (5) is fixedly connected to a vertical steel bar (1) through the pair of front screws (10); in the same way, the rear end of the slot-type embedded component (5) is fixedly connected to another vertical steel bar (1) through the pair of rear screws (9); Step 4: Butt the right side template (4) to the right side of the half-mouth-shaped left side template (3), and at the same time, make the left side elevation of the right side template (4) butt against the right side elevation of the pair of front screws (10) and the right side elevation of the pair of rear screws (9), so that a gap (6) of uniform width for forming a protective layer for pouring concrete is formed between the right side elevation of the groove-type embedded part (5) and the right side template (4); Step 5: According to the positions of the pair of front screws (10) and the pair of rear screws (9), a pair of through holes (11) for connecting the rear screws and a pair of through holes (12) for connecting the front screws are drilled on the right template (4); Step 6: After the front pair of connecting screws (16) are passed through the through holes (12) of the front pair of connecting screws in a horizontal direction from right to left, the screw tail end connecting screw holes (19) of the pair of front screws (10) are screwed together; after the rear pair of connecting screws (15) are passed through the through holes (11) of the rear pair of connecting screws in a horizontal direction from right to left, the screw tail end connecting screw holes (19) of the pair of rear screws (9) are screwed together, thereby fixing the half-mouth-shaped left template (3) and the right template (4) together to form a concrete pouring space for the side wall of the underground integrated pipe gallery.

2. The method for positioning the trough-type embedded parts in the side wall of a cast-in-place underground comprehensive pipe gallery according to claim 1 is characterized in that: Concrete is poured in the concrete pouring space of the underground utility corridor side wall to form the underground utility corridor side wall. After the poured concrete solidifies, a pair of front connecting screws (16) and a pair of rear connecting screws (15) are unscrewed, and the half-mouth-shaped left template (3) and the right template (4) are removed to obtain the underground utility corridor concrete side wall with the groove-type embedded parts (5) accurately embedded.

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