CN104455889A - Integrated underground pipe gallery with compensation device - Google Patents

Abstract

An integrated underground pipe gallery with a compensation device. Provided is an integrated underground pipe gallery with a compensation device that has high installation efficiency, low cost, strong bearing capacity, long service life, and easy maintenance. It includes several pipe joint sealing strips and several pipe joint units connected end to end, the pipe joint sealing strips are arranged between adjacent pipe joint units, and the pipe joint units include pipe joints and several parallel pipes. The pipe is arranged on the inner bottom surface of the pipe joint through the fixing seat, and the two ends of the pipe joint are respectively provided with a pipe joint telescopic connecting pipe suitable for the shape of the pipe joint, and the two ends of the pipe are respectively provided with a pipe A telescopic connection pipe, flange 1 is provided at the end of the telescopic connection pipe of the pipe joint away from the pipe joint, and flange 2 is provided at the end of the telescopic connection pipe of the pipe away from the pipe. The invention improves installation efficiency, saves construction time and cost, and enhances the ability to resist uneven subsidence of the foundation.

Description

An integrated underground pipe gallery with compensation device

technical field

The invention relates to the field of municipal infrastructure construction, in particular to an integrated underground pipe gallery with a compensation device.

Background technique

my country's urban municipal public utilities are constructed and managed by different units. Due to the different construction time, there is no unified planning and comprehensive utilization of urban underground space. The construction of underground pipe networks mostly adopts the traditional direct-buried municipal pipe network construction method. Various municipal pipes are mostly buried directly in the soil layer according to their respective systems, which is inconvenient for maintenance and easily damaged, and the supply capacity is often disturbed. Due to the different buried depths of various pipelines, it is easy to cause conflicts, and urban roads are often damaged. Repeated excavation of the road surface caused road blockage, traffic congestion, and road patch after patch. With the development of cities, underground pipelines have become increasingly complicated and even intertwined, forming an "underground noodle problem". Subway construction also increases construction costs and even causes dissatisfaction among residents due to pipeline relocation or temporary displacement. Pipe network facilities are added or repaired, and municipal construction sites abound, such as changing gas to natural gas, laying communication optical cables, laying cables for power transmission, emergency repairs of water supply pipe networks, and emergency repairs of gas pipelines. Many urban roads are constantly being dug and filled like zippers. According to incomplete statistics, the annual direct economic loss caused by pipeline network accidents caused by construction in the country reaches 5 billion yuan, and the indirect economic loss reaches 40 billion yuan.

At present, most of them are square cast-in-place pipe galleries, which have disadvantages such as long construction period (rebar binding, formwork support, concrete pouring and maintenance, etc.), high engineering cost, and difficult installation of water pipelines. The pipe gallery is generally installed with various pipelines or pipelines such as municipal, electric power, communication, gas, water supply, reclaimed water, drainage, heat, etc. Since it is installed in a limited underground space, the water supply, reclaimed water and drainage pipes are generally The use of large-diameter concrete prefabricated pipes has great difficulty in transportation and installation, slow progress and long cycle. Since the pipe gallery and its water supply, drainage, reclaimed water and other pipes are rigidly connected, the uneven settlement of the underground pipe gallery due to factors such as uneven bearing capacity of the foundation, the effect of groundwater, and crustal movement (such as earthquakes, etc.), resulting in underground Damage to the pipe gallery and the water pipelines in it will affect the use, and in severe cases, the underground pipe gallery will be damaged and scrapped.

On August 17, 2011, the State Patent Office announced a utility model patent titled "A Shared Pipe Gallery for Urban Underground Pipelines" with the patent number "ZL 2010206476199". Corrugated steel pipes with different diameters are socketed, and concrete is filled between the two corrugated steel pipes. The inner cavity of the corrugated steel pipes in the inner layer is provided with layer partitions to form a shared pipe gallery unit. Two sets of flanges are used between the units. The underground pipelines connected into the required length share the pipe gallery". This case mainly overcomes the problems of limited carrying capacity and short service life of plastic pipes and reinforced concrete pipes under the increasing load of modern urban roads. However, there are still the following problems: 1. After the concrete is solidified, the inner and outer corrugated steel pipes lose their flexibility and are still rigidly connected; 2. After local damage occurs, the entire pipe gallery unit needs to be replaced, and at the same time, on-site concrete pouring work needs to be carried out again, which greatly increases repairs workload.

Contents of the invention

Aiming at the above problems, the present invention provides an integrated underground pipe gallery with a compensation device, which has high installation efficiency, low cost, strong bearing capacity, long service life and easy maintenance.

The technical solution of the present invention is to include several pipe joint sealing strips and several pipe joint units connected end to end, the pipe joint sealing strips are arranged between adjacent pipe joint units, and the pipe joint units include pipe joints and A plurality of pipes arranged in parallel, the pipes are arranged on the inner bottom surface of the pipe joint through the fixing seat, so that the pipe joint, the pipe and the fixing seat form a whole, and the two ends of the pipe joint are respectively provided with The pipe joint telescopic connection pipes whose joint shapes match, and the two ends of the pipes are respectively provided with pipe telescopic connection pipes;

A flange 1 is provided at the end of the telescopic connecting pipe of the pipe joint away from the pipe joint, and a plurality of evenly distributed piercing holes 1 are provided on the flange 1;

The end of the pipeline telescopic connection pipe away from the pipeline is provided with a flange 2, and the flange 2 is provided with a plurality of evenly distributed piercing holes 2;

The first flange and the second flange at the same end of the pipe joint are on the same plane perpendicular to the axis of the pipe joint;

Pipe sealing strips are provided between the pipes in the adjacent pipe section units.

The maximum external dimension of the telescopic connection pipe of the pipe section is smaller than the maximum external dimension of the pipe section.

The opening of the flange one faces the axis of the pipe joint.

The opening of the second flange faces away from the axis of the pipeline.

The pipelines are divided into water pipelines, water supply pipelines and drainage pipelines.

Both the pipe joint sealing strip and the pipe sealing strip are rubber strips made of water-expandable sealing material.

The present invention has the following advantages in use:

1. The production mode of prefabricated pipe joint units replaces the current processing mode of digging trenches on the construction site and then carrying out steel bar binding, formwork support, concrete pouring and maintenance, which effectively reduces the difficulty of construction and installation, and improves the efficiency of pipe galleries and pipelines. High installation efficiency, saving a lot of construction time and costs, and the prefabricated pipe joints have a large bearing capacity and good compression resistance.

2. The compensation function is realized through the pipe joint telescopic connection pipe and the pipe telescopic connection pipe, which effectively overcomes the current rigid connection between pipe joints and pipes, uneven bearing capacity of the foundation, the effect of groundwater, and crustal movement (such as earthquakes, etc.) Under the condition of uneven settlement of the underground pipe gallery, the problem of damage to the underground pipe gallery and the water pipeline therein is caused, the service life of the present invention is greatly improved, and the ability to resist uneven settlement of the foundation is enhanced.

3. Apply the bellows compensation device (expansion joint) of mechanical engineering to the underground comprehensive pipe gallery, and set the orientation and size of flange 1 and flange 2 reasonably and cleverly, which is convenient for installation and fixing, as well as later maintenance work, and improves the on-site Improve construction efficiency and reduce construction costs.

4. In the independent pipe joint unit including the pipeline, it is convenient for transportation and hoisting, reduces construction costs, and puts the underground pipe gallery into use in advance.

5. The pipe joint unit is manufactured in a factory manner, the precision is easy to control, the cost is low, the manufacturing and installation construction time is short, and the application of the pipe gallery is fast.

Description of drawings

Fig. 1 is a structural representation of the present invention,

Figure 2 is a full sectional view of Figure 1,

Fig. 3 is a structural schematic diagram of the pipe unit in Fig. 1,

Fig. 4 is the right side view of Fig. 3,

Fig. 5 is A-A sectional view among Fig. 4,

Fig. 6 is a partial enlarged view of I place in Fig. 5,

Figure 7 is a partial enlarged view of II in Figure 2

In the figure, 1 is a pipe joint unit, 11 is a pipe joint, 111 is a pipe joint telescopic connection pipe, 112 is a flange 1, 1121 is a piercing hole 1, 12 is a pipe, 121 is a pipe telescopic connection pipe, 122 is a flange 2 , 1221 is piercing hole two, 13 is a fixed seat, 2 is a pipe joint sealing strip, and 3 is a pipeline sealing strip.

Detailed ways

As shown in Figures 1-7, the present invention includes several pipe joint sealing strips 2 and several pipe joint units 1 connected end to end, the pipe joint sealing strips 2 are arranged between the adjacent pipe joint units 1, the The pipe joint unit 1 includes pipe joints 11 and several pipes 12 arranged in parallel. The pipe joints 11 are in the shape of a square frame or a circle, etc., and the shape of the pipe joints can be selected according to actual usage conditions. The seat 13 is arranged on the inner bottom surface of the pipe joint 11, so that the pipe joint 11, the pipe 12 and the fixing seat 13 form a whole, and the two ends of the pipe joint 11 are respectively equipped with Pipe joint telescopic connection pipes 111 are provided, and the two ends of the pipe 12 are respectively provided with pipe telescopic connection pipes 121.

The telescopic connecting pipe 111 of the pipe joint is provided with a flange 112 at the end far away from the pipe joint 11, and the flange 112 is provided with a plurality of evenly distributed piercing holes 1121;

The end of the pipe telescopic connection pipe 121 away from the pipe 12 is provided with a flange 2 122, and the flange 2 122 is provided with a number of evenly distributed through-holes 2 1221;

The first flange 112 and the second flange 122 at the same end of the pipe joint 11 are on the same plane perpendicular to the axis of the pipe joint 11;

The maximum external dimension of the telescopic connecting pipe 111 of the pipe section is smaller than the maximum external dimension of the pipe section 11, so as to prevent the pipe section unit 1 from being subjected to large resistance when it is compensated by vibration after being laid.

The opening of the flange-112 faces the axis of the pipe joint 11 to form an inner flange, which is convenient for the operator to install the bolts at the bottom of the flange-112 inside the pipe joint to improve work efficiency.

The opening of the second flange 122 faces away from the axis of the pipe 12 to form an outer flange.

Pipeline sealing strips 3 are arranged between the pipelines 12 in the adjacent pipe section unit 1 to ensure the tightness of the pipelines. strip.

The pipelines 12 can be divided into water pipelines, water supply pipelines and drainage pipelines according to actual usage.

In order to reduce production cost and improve production efficiency, bellows can be used for the pipe joint telescopic connection pipe and pipeline telescopic connection pipe.

The pipe joint units in the present invention can be fabricated in advance, and when they are to be installed on site, it is only necessary to hoist each pipe joint unit in turn into the trench to be laid, and first telescopically connect the pipes of the corresponding pipes in the two pipe joint units After the pipe is firmly installed by bolts, install the pipe joint telescopic connection pipe between the two pipe joints. Due to the stretchability of both the pipe joint telescopic connection pipe and the pipe telescopic connection pipe, it can overcome the errors existing in the pipe joint, pipe production, assembly process, and pipe joint unit hoisting and laying process, enhance the site adaptability of the pipe joint unit, and improve Installation efficiency.

Claims (6)

1. An integrated underground pipe gallery with a compensation device, characterized in that it comprises several pipe joint sealing strips and some end-to-end pipe joint units, and the pipe joint sealing strips are arranged between the adjacent pipe joint units In between, the pipe section unit includes a pipe section and several pipes arranged in parallel, and the pipes are arranged on the inner bottom surface of the pipe section through a fixing seat, so that the pipe section, the pipe and the fixing seat form a whole, and the The two ends of the pipe joint are respectively provided with pipe joint telescopic connection pipes adapted to the shape of the pipe joint, and the two ends of the pipe are respectively provided with pipe telescopic connection pipes; A flange 1 is provided at the end of the telescopic connecting pipe of the pipe joint away from the pipe joint, and a plurality of evenly distributed piercing holes 1 are provided on the flange 1; The end of the pipeline telescopic connection pipe away from the pipeline is provided with a flange 2, and the flange 2 is provided with a plurality of evenly distributed piercing holes 2; The first flange and the second flange at the same end of the pipe joint are on the same plane perpendicular to the axis of the pipe joint; Pipe sealing strips are provided between the pipes in the adjacent pipe section units. 2 . The integrated underground pipe gallery with compensation device according to claim 1 , wherein the maximum external dimension of the telescopic connection pipe of the pipe joint is smaller than the maximum external dimension of the pipe joint. 3 . 3. The integrated underground pipe gallery with compensation device according to claim 1, characterized in that the opening of the flange one faces the axis of the pipe joint. 4. The integrated underground pipe gallery with compensation device according to claim 1, characterized in that the opening of the second flange faces away from the axis of the pipe. 5. An integrated underground pipe gallery with a compensation device according to claim 1, wherein the pipes are divided into water pipes, water supply pipes and drainage pipes. 6 . The integrated underground pipe gallery with a compensation device according to claim 1 , wherein the pipe joint sealing strip and the pipeline sealing strip are rubber strips made of water-expandable sealing material. 6 .