CN209854577U - An Assembled Thin-Walled Box-Type Channel - Google Patents

Abstract

The utility model discloses an assembled thin-walled box-shaped channel, each section of which is composed of a prefabricated top board, two prefabricated side boards and a cast-in-place bottom board, the prefabricated top board is a rectangular board placed horizontally, and the prefabricated side board It consists of a vertically placed main side plate and a bottom side plate perpendicular to the main side plate. The two side plates are chamfered at the junction, and sockets are set at both ends of the prefabricated side plate segment; the cast-in-place bottom plate is a horizontally placed Cast-in-place rectangular slabs; the standard sections of prefabricated thin-walled box-shaped channels are formed by connecting prefabricated side panels, prefabricated roof panels, and cast-in-place bottom panels; different sections are connected together through sockets, and the joints of the sections are filled with waterproof sealant . The utility model has the advantages of: realizing standardized design, factory prefabrication, assembly installation, simple formwork, good component quality, high mechanization level, convenient and firm installation, zero welding on site, reducing environmental pollution, reducing on-site labor consumption, and high construction efficiency , can effectively shorten the construction period.

Description

An Assembled Thin-Walled Box-Type Channel

technical field

The utility model belongs to the technical field of highway or municipal engineering and underground passage engineering, in particular to an assembled thin-walled box-shaped passage.

Background technique

In the construction of existing highways or municipal engineering, there are many passages distributed along the line, and the traffic culverts and water culverts with large spans generally adopt the structural form of slab culvert or box culvert. The traditional construction method is the cast-in-place method, and there are also Some prefabricated channel applications.

The cast-in-place channel construction is generally carried out after the foundation construction is completed, and the cast-in-place concrete construction is carried out by erecting formwork on site. According to the characteristics of the construction process and technology of the cast-in-place scheme, the cast-in-place method has inherent deficiencies, which are specifically reflected in the following aspects:

(1) The construction period is long, and the on-site pouring must be carried out after the foundation treatment is completed. It takes a certain amount of time to replace the filling or the pipe pile treatment itself. The maintenance and process are complicated and the time in the early stage of foundation treatment cannot be utilized.

(2) Poor construction quality, on-site pouring and maintenance are limited by complex procedures and on-site environment, and the quality of construction workers is also uneven. It is usually difficult to guarantee the quality of channel concrete pouring and appearance quality, and diseases such as air holes, honeycomb pockmarks, and temperature cracks sometimes occur Even if supervision is strengthened, it is difficult to effectively avoid it.

(3) On-site labor force is large and the degree of mechanization is low. On-site formwork, steel bar tying, and water spray maintenance will inevitably require more manpower. At this stage, the labor force in my country is generally older, and work efficiency is reduced, falling into a vicious circle. The wages of construction migrant workers are high, and the burden on construction enterprises has increased.

(4) Environmental pollution is high, and cast-in-place construction inevitably brings environmental pollution, such as mud loss, construction noise, particle dust, etc.

Therefore, the cast-in-place solution has many problems such as high engineering cost, complicated construction, low construction efficiency, slow construction period, and difficulty in guaranteeing engineering quality.

The existing prefabricated passages mainly include slab culverts or box culverts. There are deficiencies in the existing prefabricated slab culverts or box culverts, which are specifically reflected as follows:

(1) The prefabricated roof culvert is only prefabricated, and the side walls and bottom slabs are still cast-in-place to adapt to the site environment.

(2) The prefabricated cover culvert adopts broken joints at the side walls and arc-shaped strands. The structure is relatively complex, and the joints between the blocks are relatively large, which is not conducive to on-site hoisting construction and waterproof treatment.

(3) The prefabricated box culvert is large in size, heavy in weight, inconvenient for transportation and has high requirements for hoisting machinery and equipment.

(4) The prefabricated box culvert needs to be pushed or pulled horizontally, it is difficult to be inserted vertically, and additional counter force equipment or cables are required, resulting in inconvenience in construction.

Contents of the invention

In view of the above, the utility model provides a prefabricated thin-walled box-shaped channel, which realizes standardized design, factory prefabrication, and prefabricated installation. Environmental pollution, reduced on-site labor consumption, high construction efficiency, can effectively shorten the construction period.

A prefabricated thin-walled box-shaped channel, which is spliced by multiple segments, each segment is an empty box structure composed of a prefabricated top plate, two prefabricated side plates and a cast-in-place bottom plate, the prefabricated side The panel is composed of a horizontal bottom side panel and a main side panel perpendicular to the bottom side panel, so that the cross section of the prefabricated side panel is an inverted T-shaped structure. There are ring-shaped protruding steel bars, and the bottom and side plates are nested and fixed with the cast-in-place bottom plate through the ring-shaped protruding steel bars and concrete. Concave), the prefabricated roof is provided with anchor bolt holes for anchor bolt steel bars to pass through.

Further, a chamfer is provided at the junction of the main side plate and the bottom side plate.

Further, the length direction of the prefabricated thin-walled box-shaped channel adopts the combination and splicing of standard segments and adjustment segments according to on-site conditions.

Further, the mating connection of the prefabricated side panels, the prefabricated top panel and the cast-in-place bottom panel constitutes a standard segment of the prefabricated thin-walled box-shaped channel.

Further, the standard section length of the prefabricated thin-walled box channel is 2.5 meters, and the adjustment section length is 1 meter.

Further, the prefabricated top slab and the prefabricated side slabs are all made of factory prefabricated reinforced concrete components, and the cast-in-place bottom slab is made of on-site cast reinforced concrete components.

Further, the prefabricated top plate is interspersed with the anchor bolt reinforcement on the main side plate of the prefabricated side plate through the anchor bolt holes.

Further, the adjacent segments are spliced together through sockets, the segment joints are filled with waterproof sealant, and the outside of the segment joints is annularly sealed with a waterstop belt.

The utility model prefabricated and processed reinforced concrete components by the factory: top plate and side plate, and the height of the side plate can be flexibly adjusted according to actual needs. After the prefabrication is completed, it will be transported to the site for installation. Then connect the bottom and side panels of the two prefabricated side panels, pour the bottom panel, and finally form a permanent and stable structure; the standard segments are connected together through sockets, and the segment joints are filled with waterproof sealant outside the segment joints. The water belt is annularly sealed; the length of the box-shaped channel can be flexibly adjusted according to the actual situation on site, and the combination of different standard segments and adjustment segments can be flexibly adjusted.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. Standardized design, factory manufacturing, prefabricated installation, high level of mechanization.

2. The formwork is simple, the blocks are reasonable, and the components are of good quality.

3. Zero welding of steel bars on site, reducing environmental pollution and reducing on-site labor consumption.

4. The installation is convenient and firm, the construction efficiency is improved, and the construction period is effectively shortened.

5. Box-shaped thin-walled components, reasonable force, economical and economical.

Description of drawings

Fig. 1 is a front view structural schematic diagram of the channel segment of the present invention.

Fig. 2 is a rear view structural schematic diagram of the channel segment of the present invention.

Fig. 3 is a schematic structural view of the channel segment prefabricated roof of the utility model.

Fig. 4 is a front view structural schematic diagram of the channel segment prefabricated side plate of the utility model.

Fig. 5 is a rear view structural schematic diagram of the prefabricated side panel of the channel segment of the utility model.

Fig. 6 is a structural schematic diagram of the channel segment cast-in-place floor of the utility model.

Fig. 7 is a cross-sectional schematic diagram of parameters selected according to the passage and water passing functions of the channel segment of the utility model.

Fig. 8 is a structural schematic diagram of the assembly of four passages of the utility model.

Fig. 9 is a structural schematic diagram of the auxiliary facility (prefabricated side ditch) of the utility model.

Fig. 10 is a schematic structural view of the four-section assembly of the channel of the present invention combined with ancillary facilities.

Among them: 1—prefabricated top plate, 11—anchor bolt hole, 2—prefabricated side plate, 21—main side plate, 22—bottom side plate, 23—chamfer (inner), 24—chamfer (outer), 25—bearing Socket (convex), 26—socket (concave), 27—anchor bolt reinforcement, 28—annular protruding reinforcement, 3—cast-in-place floor, 4—prefabricated side ditch, 5—asphalt pavement layer, 6—gravel cushion, L—segment length, B—standard width, H—standard height.

Detailed ways

In order to describe the utility model more specifically, the technical solutions of the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 to 6, the prefabricated thin-walled box-shaped channel of the utility model is spliced by multiple segments, and each segment consists of a prefabricated roof 1, two prefabricated side plates 2 and a cast-in-place bottom plate 3 The prefabricated top panel 1 is a horizontally placed rectangular panel with anchor bolt holes 11 arranged at both ends of the panel; the prefabricated side panel 2 is composed of a vertically placed main side panel 21 and a bottom side panel 22 perpendicular to the main side panel 21 , the cross-section of the prefabricated side panel 2 formed by the side panels 21 and 22 is an inverted T-shaped structure, and chamfers 23 and 24 are provided at the junction; anchor bolts are provided on the upper edge of the main side panel 21 of the prefabricated side panel 2 Steel bar 27, the inner side of bottom side plate 22 is provided with annular protruding steel bar 28, and the two ends of prefabricated side plate 2 are provided with socket sockets 25 and 26; 2 bottom side plate 22 connection.

As shown in Figure 7, the standard section of the prefabricated thin-walled box-shaped channel is formed by the connection of the prefabricated side plate 2, the prefabricated roof 1, and the cast-in-place bottom plate 3. Width B×standard height H.

In this embodiment, the standard segment length L of the assembled thin-walled box-shaped channel is 2.5 meters, and the adjusted segment length L is 1 meter to realize free combination in the channel length direction.

In this embodiment, the prefabricated roof 1 and the prefabricated side slabs 2 are factory prefabricated reinforced concrete prefabricated components, and the cast-in-place bottom slab 3 is a reinforced concrete component cast on site.

In this embodiment, the prefabricated roof 1 is nested with the anchor bolts 27 on the upper edge of the main side panel 21 of the prefabricated side panel 2 through the anchor bolt holes 11 provided at both ends of the panel.

In this embodiment, the prefabricated side panel 2 is connected to the cast-in-place bottom panel 3 by circularly nesting the reinforcing bars 28 protruding from the bottom side panel 22 .

In this embodiment, the cast-in-place base plate 3 is placed horizontally between the bottom side plates 22 of the two prefabricated side plates 2 .

In this embodiment, the standard segments are connected together through the sockets 25 and 26, the segment joints are filled with waterproof sealant, and the outside of the segment joints is sealed with a waterstop ring, as shown in FIG. 8 .

In this embodiment, the inside of the box-type channel is quickly constructed by using the prefabricated side ditch 4 as shown in FIG.

The construction process of the assembled thin-walled box-shaped channel of the utility model is as follows:

(1) Reinforce the foundation according to the specific geological conditions of the channel culvert to meet the requirements of the bearing capacity of the foundation, and apply a leveling layer to meet the flatness requirements of the prefabricated components;

(2) hoisting the prefabricated side panel 2 of the first section, and installing struts to ensure the stability of the prefabricated side panel;

(3) Hoist the prefabricated roof 1 to form a stable structure, apply waterproof sealant around the tongue and groove 25 and fill it, and the remaining prefabricated side panels extend the sockets 25 and 26 vertically in sequence, and hoist the matching prefabricated roof 2 until the prefabricated The side panels and prefabricated roof panels are all installed;

(4) Wrap the outside of the joints of the prefabricated roof 1 and the prefabricated side panels 2 with waterstops;

(5) Install the prefabricated side ditch 4, compact the gravel cushion 6, and lay the pavement structure layer 5 thereon;

(6) Construct the gates on both sides of the passage to complete the construction of the arch passage, as shown in Figure 10.

The above description of the embodiments is for those of ordinary skill in the art to understand and apply the utility model. It is obvious that those skilled in the art can easily make various modifications to the above-mentioned embodiments, and apply the general principles described here to other embodiments without creative efforts. Therefore, the utility model is not limited to the above-mentioned embodiments, and the improvements and modifications made by those skilled in the art according to the disclosure of the utility model should be within the protection scope of the utility model.

Claims (8)

1. The utility model provides an assembled thin wall box passageway forms by a plurality of segmentations concatenation, its characterized in that: every festival section is for the empty case structure that is made up by a prefabricated roof, two prefabricated curb plates and a cast-in-place bottom plate, prefabricated curb plate comprises the bottom side board that a level was placed and with bottom side board vertically main side board for prefabricated curb plate cross section is the type of falling T structure, is equipped with the crab-bolt reinforcing bar along shelving the department on the main curb plate, and bottom side inboard is provided with annular and stretches out the reinforcing bar, and bottom side board stretches out reinforcing bar and concrete and cast-in-place bottom plate nested rigid coupling through the annular, and prefabricated curb plate is equipped with the bell and spigot along channel length direction's both sides, and it has the anchor bolt hole that supplies the crab-bolt.

2. The assembled thin-walled box-type gallery of claim 1, further comprising: a chamfer is arranged at the junction of the main side plate and the bottom side plate.

3. The assembled thin-walled box-type gallery of claim 1, further comprising: the length direction of the assembled thin-wall box-type channel adopts an implementation form of combining and splicing a standard segment and an adjusting segment according to the field situation.

4. The assembled thin-walled box-type gallery of claim 3, wherein: the prefabricated side plates, the prefabricated top plate and the cast-in-place bottom plate are connected in a matched mode to form a standard segment of the assembled thin-wall box-type channel.

5. The assembled thin-walled box-type gallery of claim 3, wherein: the standard segment length of the assembled thin-wall box-type channel is 2.5 meters, and the adjusting segment length is 1 meter.

6. The assembled thin-walled box-type gallery of claim 1, further comprising: the prefabricated top plate and the prefabricated side plates are both prefabricated reinforced concrete prefabricated components prefabricated in an industrial mode, and the cast-in-place bottom plate is a reinforced concrete component poured in situ.

7. The assembled thin-walled box-type gallery of claim 1, further comprising: the prefabricated roof is alternatively laid with the anchor bolt reinforcing steel bars on the upper edge of the main side plate of the prefabricated side plate through the anchor bolt holes.

8. The assembled thin-walled box-type gallery of claim 1, further comprising: adjacent segments are spliced together through bell and spigot joints, segment joints are filled with waterproof sealant, and the outer sides of the segment joints are sealed in an annular mode through water stop belts.