阅读说明：本技术 一种压力管道免深开槽***护结构及施工方法 (Pressure pipeline deep-grooving-free outer enclosing structure and construction method ) 是由 邓涛 于 2019-11-11 设计创作，主要内容包括：本发明涉及管道施工技术领域,特别涉及一种压力管道免深开槽外围护结构,包括外围护本体,所述外围护本体包括可拆卸连接的第一外围护和第二外围护,所述第一外围护和第二外围护之间形成管槽,所述第一外围护上竖向设置有隔板将管槽分隔成两个独立的空间。施工方法如下：对道路地表浅层进行开槽；分段放置第二外围护,向卡槽内填充防水材料；放入施工管线并固定；放入联络管,连接待改造的地下管线和新敷设管线；分段放置第一外围护,错缝将卡扣和卡槽相扣,第一外围护的连接缝和第二外围护的连接缝也错开；连接缝用保温密封材料密封夯实；进行管道试压验收,道路地表平整并清场维护；定期对管槽内的管线进行维护。本发明不需要在管线原有位置深开槽作业,可以满足反复维护的需要。(The invention relates to the technical field of pipeline construction, in particular to a pressure pipeline deep-grooving-free outer enclosure structure which comprises an outer enclosure body, wherein the outer enclosure body comprises a first outer enclosure and a second outer enclosure which are detachably connected, a pipe groove is formed between the first outer enclosure and the second outer enclosure, and a partition plate is vertically arranged on the first outer enclosure to divide the pipe groove into two independent spaces. The construction method comprises the following steps: grooving the shallow layer of the road surface; the second outer enclosure is placed in sections, and waterproof materials are filled into the clamping grooves; putting the construction pipeline into the construction pipeline and fixing the construction pipeline; putting a connecting pipe, and connecting the underground pipeline to be modified and the newly laid pipeline; the first outer enclosure is placed in sections, the buckles and the clamping grooves are buckled by staggered joints, and the connecting joints of the first outer enclosure and the second outer enclosure are also staggered; sealing and tamping the connecting joints by using heat-insulating sealing materials; performing pipeline pressure test acceptance, leveling the road surface and clearing the road for maintenance; the pipeline in the pipe groove is maintained regularly. The invention does not need deep grooving operation at the original position of the pipeline and can meet the requirement of repeated maintenance.)

1. The utility model provides a pipeline under pressure exempts from outer envelope structure of deep fluting which characterized in that: the outer enclosure comprises an outer enclosure body, wherein the outer enclosure body comprises a first outer enclosure and a second outer enclosure which are detachably connected, a pipe groove is formed between the first outer enclosure and the second outer enclosure, and a partition plate (3) is vertically arranged on the first outer enclosure to divide the pipe groove into two independent spaces.

2. The pressure pipe deep grooving-free outer jacket structure of claim 1, wherein: the first peripheral protector comprises buckles (1) and a cover plate (2), the buckles (1) are connected to two sides of the cover plate (2), a first cuboid-shaped pipe groove is formed between the buckles (1), and the partition plate (3) is arranged at the bottom of the cover plate (2).

3. The pressure pipe deep grooving-free outer jacket structure of claim 1, wherein: the second outer enclosure comprises a bottom plate (4) and side plates, the side plates are arranged on two sides of the bottom plate (4), and a second cuboid-shaped pipe groove is formed between the two side plates; the side plate is provided with a clamping groove (5) corresponding to the buckle (1), and the clamping groove (5) is matched with the buckle (1).

4. A pressure pipeline deep grooving-free construction method is characterized by comprising the following steps:

s1, grooving construction sites of roads where pipelines need to be modified, wherein the grooving depth is not less than the sum of the outer diameter of the pipeline and the thicknesses of the outer protecting structure cover plate (2) and the bottom plate (4), the grooving width is not less than the sum of the outer diameter of the pipeline and the thicknesses of the two side plates, and the bottom is leveled and tamped;

s2, placing the second outer enclosure in a segmented manner, enabling a second pipe groove to be upward when the second outer enclosure is placed, keeping the second pipe groove horizontal, and filling waterproof materials into the clamping groove (5);

s3, placing the construction pipeline, and fixing a newly laid pipe hoop for the pipeline on the bottom plate (4);

s4, putting the connecting pipe into the pipeline groove, and connecting the road underground pipeline to be reformed and the newly laid pipeline in the pipeline groove;

s5, placing the first outer enclosure in sections, and during construction, buckling the buckle (1) and the clamping groove (5) by staggered joints, wherein the connecting joint of the first outer enclosure and the connecting joint of the second outer enclosure are staggered;

s6, sealing and tamping the connecting joint of the buckle (1) and the clamping groove (5) by using a heat-insulating sealing material;

s7, performing pipeline pressure test acceptance, leveling the road surface and cleaning the road for maintenance;

and S8, regularly maintaining the pipeline in the pipe groove.

5. The pressure pipeline deep grooving-free construction method according to claim 4, wherein: the heat-insulating sealing material is an asbestos-oil-flax material or a rubber-plastic heat-insulating material.

6. The pressure pipeline deep grooving-free construction method according to claim 4, wherein in the step S8, the pipeline maintenance process is as follows:

s9, removing the heat-insulating sealing material in the clamping groove (5);

s10, removing the cover plate (2);

s11, replacing the pipeline in the pipe and the groove;

s12, testing the pressure of the pipeline and the sealing performance;

s13, buckling the first outer enclosure and the second outer enclosure, and sealing and tamping the joint of the buckle (1) and the clamping groove (5) by using a heat-insulating sealing material;

and S14, leveling the road surface and performing cleaning maintenance.

Technical Field

The invention relates to the technical field of pipeline construction, in particular to a pressure pipeline deep-grooving-free outer enclosure structure and a construction method.

Background

Underground pipelines are life lines for normal operation of cities, and because horizontal and vertical laying requirements among various pipelines (water, gas, electric power, communication and the like) need to be considered comprehensively, factors such as load bearing requirements of ground vehicles and pedestrians, freezing protection and the like generally have deeper burying depth. Along with the rapid development of urban economy, underground pipelines need to be maintained, updated and modified frequently, deep grooving operation needs to be carried out on roads by a conventional process, original pipelines are replaced, and the construction method brings the following obvious adverse effects: (1) influence the normal traffic operation of the road; (2) the construction cost is high, and the period is long; (3) repeated deep excavation of the road cannot be avoided; (4) easily cause other pipeline construction damages and cause engineering accidents. The current advanced process is that the urban underground comprehensive pipe gallery needs to be specially constructed for placing underground pipe galleries of various pipelines, the original pipelines need to be replaced, the existing roads need to be grooved greatly, and the construction cost is high. The natural gas pipeline laying embedded device (chinese patent publication No. CN109296828A, published japanese 2019.02.01) and the municipal cable buried protection pipeline (chinese patent publication No. CN10758831A, published japanese 2018.02.02) disclosed in the prior art mainly perform external protection on the natural gas pipeline and the cable pipeline, are external protection measures for the original pipeline at the original position, cannot reduce the depth of a slotted hole in construction, and can only be used for placing a single pipeline.

Disclosure of Invention

The invention provides a pressure pipeline deep-grooving-free outer enclosure structure and a construction method, which solve the problems that an original single pipeline is only protected by an embedded device or a protection pipeline in the prior art, deep grooving construction is needed, and deep grooving operation on a road is also needed in the conventional construction method.

In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides a pipeline under pressure exempts from outer envelope structure of deep fluting, includes the outer envelope body of protecting, the outer envelope of protecting of first outer envelope and second including dismantling the connection, form the chase between the outer envelope of first outer envelope and second, the vertical baffle that is provided with on the first outer envelope separates into two independent spaces with the chase.

Preferably, the first peripheral protector comprises buckles and a cover plate, the buckles are connected to two sides of the cover plate, a cuboid-shaped first pipe groove is formed between the two buckles, and the partition plate is arranged at the bottom of the cover plate.

As a preferred scheme, the second outer enclosure comprises a bottom plate and side plates, the side plates are arranged on two sides of the bottom plate, and a second cuboid-shaped pipe groove is formed between the two side plates; and a clamping groove is formed in the side plate corresponding to the buckle and matched with the buckle.

A construction method for a pressure pipeline without deep grooving comprises the following steps:

s1, grooving construction sites where pipelines need to be modified on roads, wherein the grooving depth is not less than the sum of the outer diameter of the pipeline and the thicknesses of a cover plate and a bottom plate of the outer protection structure, the grooving width is not less than the sum of the outer diameter of the pipeline and the thicknesses of two side plates, and the bottom is leveled and tamped;

s2, placing the second outer enclosure in a segmented mode, enabling a second pipe groove to be upward when the second outer enclosure is placed, enabling the second pipe groove to be horizontal, and filling waterproof materials into the clamping groove;

s3, placing the construction pipeline, and fixing a newly laid pipe hoop for the pipeline on the bottom plate;

s4, putting the connecting pipe into the pipeline groove, and connecting the road underground pipeline to be reformed and the newly laid pipeline in the pipeline groove;

s5, placing the first outer enclosure in sections, and during construction, buckling the buckle and the clamping groove by staggered joints, wherein the connecting joint of the first outer enclosure and the connecting joint of the second outer enclosure are staggered;

s6, sealing and tamping the buckle and the clamp connecting seam by using a heat-insulating sealing material;

s7, performing pipeline pressure test acceptance, leveling the road surface and cleaning the road for maintenance;

and S8, regularly maintaining the pipeline in the pipe groove.

Preferably, the heat-insulating sealing material is an asbestos-oil-flax material or a rubber-plastic heat-insulating material.

Preferably, in step S8, the pipeline maintenance procedure is as follows:

s9, removing the heat-insulating sealing material in the clamping groove;

s10, removing the cover plate;

s11, replacing the pipeline in the pipe and the groove;

s12, testing the pressure of the pipeline and the sealing performance;

s13, buckling the first outer enclosure and the second outer enclosure, and sealing and tamping the joint of the buckle and the clamping groove by using a heat-insulating sealing material;

and S14, leveling the road surface and performing cleaning maintenance.

Compared with the prior art, the invention has the beneficial effects that: the pipe grooves of the outer protective structure are separated by the partition plates and can be used for placing pipelines and communication cables respectively, the functions are diversified, the pipe grooves can play a role in protecting the pipelines and can also be used for laying the communication cables; the cover plate and the bottom plate have the functions of directly bearing road traffic load and heat preservation, and can ensure that the external environment of the pipeline is relatively stable, thereby providing the reliability of pipeline service and prolonging the service life of the pipeline; compare other pipeline external protection measures of the same type, considered the vertical load of road traffic load to the tube seat, the side direction load effect, considered the vertical shear stress influence of tube seat that the ground inhomogeneous settlement arouses simultaneously, can directly be under construction on the road top layer, need not be in the operation of the original position deep grooving of pipeline, can satisfy the needs of maintaining repeatedly.

The depth of the groove is slightly larger than or equal to the sum of the outer diameter of the pipeline and the thickness of the outer protective structure cover plate and the bottom plate, namely, only the groove is needed to be formed in the shallow stratum of the road, the underground pipeline of the road to be reformed and the newly laid pipeline in the pipe groove are connected by the connecting pipe, and the damage of the existing construction process to other pipelines can be avoided in the aspect of vertical elevation design; the damage of the existing deep slotting construction process to other pipelines is avoided, the maintenance and the overhaul in the future are convenient, and the influence of repeated excavation on traffic and normal running of a city is avoided; during construction, the buckles and the clamping grooves are buckled by staggered joints, so that the situation that the pipeline is damaged due to vertical shear stress caused by uneven settlement of a foundation is prevented, the connecting joints of the first outer enclosure and the second outer enclosure are staggered, and the stress damage to the pipeline caused by uneven vertical settlement is avoided; in addition, the invention has short construction period and low cost.

Drawings

FIG. 1 is a schematic view of a first outer enclosure of the present invention;

fig. 2 is a schematic view of the construction of the second outer envelope of the present invention.

In the figure:

1. the buckle, 2, apron, 3, baffle, 4, bottom plate, 5, draw-in groove.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.