阅读说明：本技术 用于管道压槽的施工方法 (Construction method for pipeline groove pressing ) 是由 朱文伟 周鹏 周迎超 罗乙博 曾东明 任鑫 于 2020-06-29 设计创作，主要内容包括：本发明涉及建筑工程技术领域,尤其涉及一种用于管道压槽的施工方法,其通过首先制作固定支撑架,固定支撑架包括支架、限位卡件,支架的高度与现浇板下口和压槽槽底之间的距离相等,限位卡件设置在支架上；然后沿管道布置的线路设置多个固定支撑架；再然后将压槽钢管依次放置在固定支撑架上；最后进行混凝土结构浇注,混凝土结构浇注完成一定时间后,拆除压槽钢管。固定支撑架主要起固定支撑和限位的作用,由于支架的高度与现浇板下口和压槽槽底之间的距离相等,支架的高度成为压槽槽底的标高,保证成型压槽深度的一致性；限位卡件对压槽钢管进行固定限位,降低了压槽钢管跑位的可能性,保证成型压槽的直线度,从而提高成型压槽的质量。(The invention relates to the technical field of constructional engineering, in particular to a construction method for pipeline indent, which comprises the steps of firstly manufacturing a fixed support frame, wherein the fixed support frame comprises a support and a limiting clamping piece, the height of the support is equal to the distance between the lower opening of a cast-in-place plate and the bottom of an indent groove, and the limiting clamping piece is arranged on the support; then arranging a plurality of fixed support frames along the pipeline arrangement line; then sequentially placing the pressure groove steel pipes on a fixed support frame; and finally, pouring the concrete structure, and removing the steel pipe of the pressure groove after the concrete structure is poured for a certain time. The fixed support frame mainly plays a role in fixed support and limiting, and the height of the support is equal to the distance between the lower opening of the cast-in-place plate and the bottom of the indent, so that the height of the support becomes the elevation of the bottom of the indent, and the consistency of the depth of the molding indent is ensured; the limiting clamping piece is used for fixing and limiting the groove pressing steel pipe, the possibility of position running of the groove pressing steel pipe is reduced, and the straightness of the formed groove pressing is guaranteed, so that the quality of the formed groove pressing is improved.)

1. The construction method for the pipeline indent is characterized in that: the method comprises the following steps:

a. manufacturing a fixed support frame (1), wherein the fixed support frame (1) comprises a support (11) and a limiting clamping piece (12), the height of the support (11) is equal to the distance between the lower opening of the cast-in-situ slab and the bottom of the indent, and the limiting clamping piece (12) is arranged on the support (11);

b. installing fixed support frames (1), after the concrete pouring template on the cast-in-place template is installed, drawing a pipeline arrangement circuit on the concrete pouring template, arranging a plurality of fixed support frames (1) along the pipeline arrangement circuit, and fixing the fixed support frames (1) on the concrete pouring template;

c. installing the steel pipe (2) with the pressed groove, wherein the diameter of the steel pipe (2) with the pressed groove is larger than the depth of the pressed groove, sequentially placing a plurality of steel pipes (2) with the pressed groove on the fixed support frame (1) along a pipeline, arranging the steel pipes (2) with the pressed groove in the limiting clamping piece (12) in a matching manner, and enabling two adjacent steel pipes (2) with the pressed groove to be attached together;

d. pouring a concrete structure, namely pouring the concrete structure in a concrete pouring template, completely embedding the fixed support frame (1) in the concrete structure, and embedding the lower part of the pressure groove steel pipe (2) in the concrete structure;

e. and after the concrete structure is poured for a certain time, dismantling the groove pressing steel pipe (2) so as to finish the construction of the pipeline groove pressing.

2. The pipe-grooving construction method according to claim 1, wherein: the support (11) is a stirrup support, and the support (11) is made of steel.

3. The pipe-grooving construction method according to claim 2, wherein: two limiting clamping pieces (12) are respectively arranged on each bracket (11), and the two limiting clamping pieces (12) are positioned at two ends of each bracket (11).

4. A construction method for a pipe chase as recited in claim 3, wherein: the limiting clamping piece (12) is composed of two reinforcing steel bars which are arranged in parallel.

5. The pipe-grooving construction method according to claim 1, wherein: and in the step b, after the lower layer of steel bars of the cast-in-place plate are bound, the fixed support frame (1) is installed before the upper layer of steel bars of the cast-in-place plate are bound.

6. The pipe-grooving construction method according to claim 1, wherein: in the step c, one pressure groove steel pipe (2) is placed on two fixed support frames (1).

7. The pipe-grooving construction method according to claim 1, wherein: the diameter of the steel pipe (2) is 2 times larger than the depth of the press groove.

8. The pipe-grooving construction method according to claim 1, wherein: pull rings (3) are respectively arranged at the two ends of the groove pressing steel pipe (2).

9. The construction method for a pipe chase as recited in any one of claims 1 to 8, further comprising: a timing alarm (4) is arranged on the groove pressing steel pipe (2).

10. The pipe-grooving construction method according to claim 9, wherein: in the step e, after the concrete structure is poured for 8-10 hours, the steel pipe (2) of the pressure groove is removed.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a construction method for pipeline pressure grooves.

Background

In the field of house construction, the general method for laying the cold and hot water pipe matched with the cast-in-place plate at present comprises the following steps: one is that the pipeline is directly buried in the structural concrete in the structural stage and forms an integral body with the concrete structure; secondly, the pipeline is laid in a building leveling layer and is concealed by the building construction thickness; thirdly, cutting a notch on the concrete surface by using a special machine after the concrete pouring is finished; the fourth method is to press the groove before pouring concrete, and to hide the pipe by using a certain depth of the groove combined with the thickness of the leveling layer of the upper building. The first method is forbidden as a strong bar in the design standard of water supply and drainage of buildings (GB50015-2019) due to the larger use risk; the second method is that the pipeline is hidden in the building layer, and the building leveling layer must be thickened due to insufficient building layer thickness, so that the structural layer is thickened, the economic cost is greatly increased, the layer height is reduced, and the quality risks of cracking, hollowing and the like are increased; the third method is extremely difficult to operate, the depth of the notch is difficult to guarantee, and the structural steel bars are easy to damage; the fourth method has the construction principle that the groove forming space of a partial structure protective layer and the thickness of a building protective layer are utilized to conceal and protect pipelines, the method meets the specification and is good in economy, but the quality control requirement in operation is high, and the one-step forming control difficulty is high.

At present, the fourth pipeline grooving method can be divided into the following two methods: the utility model provides a way is before concrete placement, directly ligature the indent steel pipe on upper reinforcing bar with the lead wire, then carries out concrete placement, demolishs the indent steel pipe after pouring the completion again, will leave the indent on concrete floor, because the indent steel pipe directly supports on the structural steel bar, the lower part does not have independent fixed bolster, and in the work progress, the indent degree of depth can't be guaranteed, has deeply to have shallowly, and shaping indent quality is relatively poor. The other method is that the steel pipe is directly used for pressing the groove on the concrete surface after the concrete is poured, and the groove pressing depth is not uniform or even not downward due to the flatness difference of the structural steel bar surface and the uneven particles in the concrete, so that the operation difficulty is high and the quality of the formed groove pressing is poor.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a pipeline groove pressing construction method with good forming groove pressing quality.

The technical scheme adopted by the invention for solving the technical problems is as follows: the construction method for the pipeline indent comprises the following steps:

a. manufacturing a fixed support frame, wherein the fixed support frame comprises a support and a limiting clamping piece, the height of the support is equal to the distance between the lower opening of the cast-in-place plate and the bottom of the indent, and the limiting clamping piece is arranged on the support;

b. installing fixed support frames, drawing a pipeline arrangement circuit on the concrete pouring template after the concrete pouring template on the cast-in-place template is installed, arranging a plurality of fixed support frames along the pipeline arrangement circuit, and fixing the fixed support frames on the concrete pouring template;

c. installing the steel pipe with the diameter larger than the depth of the press groove, sequentially placing a plurality of steel pipes with the press groove on the fixed support frame along a pipeline, wherein the steel pipes with the press groove are arranged in the limiting clamping part in a matching manner, and two adjacent steel pipes with the press groove are mutually attached;

d. pouring a concrete structure, namely pouring the concrete structure in a concrete pouring template, completely embedding the fixed support frame in the concrete structure, and embedding the lower part of the pressure groove steel pipe in the concrete structure;

e. and after the concrete structure is poured for a certain time, removing the steel pipe of the pressure groove, thereby completing the construction of the pipeline pressure groove.

Further, the support is a stirrup support, and the support is made of steel.

Furthermore, two limiting clamping pieces are respectively arranged on each bracket and are positioned at two ends of each bracket.

Furthermore, the limiting clamping piece is composed of two reinforcing steel bars which are arranged in parallel.

Further, in the step b, after the lower layer steel bars of the cast-in-place plate are bound, the fixed support frame is installed before the upper layer steel bars of the cast-in-place plate are bound.

Further, in step c, a steel pipe with a groove is placed on two fixed supporting frames.

Furthermore, the diameter of the steel pipe is 2 times larger than the depth of the groove.

Furthermore, pull rings are respectively arranged at two ends of the groove pressing steel pipe.

Furthermore, a timing alarm is arranged on the groove pressing steel pipe.

Further, in the step e, after the concrete structure is poured for 8-10 hours, the steel pipe of the pressure groove is removed.

The invention has the beneficial effects that: firstly, a fixed support frame is manufactured, the fixed support frame comprises a support and a limiting clamping piece, the height of the support is equal to the distance between the lower opening of the cast-in-place plate and the bottom of the indent, and the limiting clamping piece is arranged on the support; then arranging a plurality of fixed support frames along the pipeline arrangement line, and fixing the fixed support frames on the concrete pouring template; then sequentially placing the groove pressing steel pipes on the fixed support frame, wherein the groove pressing steel pipes are arranged in the limiting clamping pieces in a matching manner; and finally, pouring the concrete structure, and removing the steel pipe of the pressure groove after the concrete structure is poured for a certain time, thereby completing the construction of the pipeline pressure groove. The fixed support frame has a simple structure, is convenient to use, mainly plays a role in fixed support and limiting, and ensures the consistency of the depth of the formed indent as the height of the support is equal to the distance between the lower opening of the cast-in-situ plate and the indent bottom, and the height of the support becomes the elevation of the indent bottom; the limiting clamping piece is used for fixing and limiting the groove pressing steel pipe, so that the possibility of the groove pressing steel pipe running is reduced, the straightness of the formed groove pressing is ensured, and the quality of the formed groove pressing is improved; furthermore, the fixed support frame is completely embedded in the concrete structure, so that the strength of the concrete structure is improved, the using amount of steel bars of the concrete structure is reduced, the construction cost is reduced, and the popularization is facilitated.

Drawings

FIG. 1 is a schematic side view of a fixing support frame and a steel pipe installation of a pressure groove during construction;

FIG. 2 is a schematic front view of the installation of the fixed support frame and the steel pipe of the pressure groove during construction;

the label is: the device comprises a fixed support frame 1, a support 11, a limiting clamping piece 12, a groove pressing steel pipe 2, a pull ring 3 and an alarm 4.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

As shown in fig. 1 and 2, the construction method for pipe grooving of the present invention comprises the following steps:

a. manufacturing a fixed support frame 1, wherein the fixed support frame 1 comprises a support 11 and a limiting clamping piece 12, the height of the support 11 is equal to the distance between the lower opening of the cast-in-situ plate and the bottom of the indent, and the limiting clamping piece 12 is arranged on the support 11;

b. installing the fixed support frames 1, drawing or popping out a pipeline arrangement circuit on the concrete pouring template after the concrete pouring template on the cast-in-place template is installed, arranging a plurality of fixed support frames 1 along the pipeline arrangement circuit, and fixing the fixed support frames 1 on the concrete pouring template;

c. installing the steel pipe 2 with the diameter larger than the depth of the press groove, sequentially placing a plurality of steel pipes 2 on the fixed support frame 1 along the pipeline, wherein the steel pipes 2 are arranged in the limit clamping part 12 in a matching way, and two adjacent steel pipes 2 are mutually attached;

d. pouring a concrete structure, namely pouring the concrete structure in a concrete pouring template, completely embedding the fixed support frame 1 in the concrete structure, and embedding the lower part of the pressure groove steel pipe 2 in the concrete structure;

e. and after the concrete structure is poured for 8-10 hours, removing the groove pressing steel pipe 2, thereby completing the construction of the pipeline groove pressing.

The fixed support frame 1 mainly plays a role in fixed support and limiting, the height of the support 11 becomes the elevation of the bottom of the indent, and the consistency of the depth of the formed indent is ensured. The stationary support 1 is preferably made of steel, such as welded by steel bars or steel pipes. In order to guarantee the fixed stay effect of stationary mast frame 1, as shown in fig. 1 again, support 11 is preferably the stirrup support, and the stirrup support includes rectangle skeleton and L stabilizer blade, and the rectangle skeleton can adopt the round steel welding to form, and its length and width is 200mm, and the L stabilizer blade also can adopt the round steel to support, and its length is 100 mm.

The limiting clamping piece 12 is used for fixing and limiting the indent steel tube 2, so that the possibility of dislocation of the indent steel tube 2 is reduced, and the straightness of the formed indent is ensured. In order to ensure the fixed limiting effect of the steel pipe 2, two limiting clamping pieces 12 are respectively arranged on each bracket 11, the two limiting clamping pieces 12 are positioned at two ends of each bracket 11, and in the step c, one steel pipe 2 is placed on the two fixed support frames 1. In order to reduce the manufacturing cost of the limiting clamping piece 12 and facilitate use, the limiting clamping piece 12 is composed of two reinforcing steel bars which are arranged in parallel, and the distance between the two reinforcing steel bars is slightly larger than the diameter of the steel tube 2.

In the step b, in order to prevent the upper-layer steel bars of the cast-in-place plate from influencing the accurate positioning of the fixed support frame 1, the fixed support frame 1 is installed before the upper-layer steel bars of the cast-in-place plate are bound after the lower-layer steel bars of the cast-in-place plate are bound.

In order to further guarantee the effect of shaping indent and be convenient for demolish indent steel pipe 2, the diameter of indent steel pipe 2 is greater than 2 times of the indent degree of depth, sets up like this only during the embedded concrete structure of lower part of indent steel pipe 2, the indent shaping of being convenient for and taking out. In order to be further convenient for demolish indent steel pipe 2, be provided with pull ring 3 on the both ends of channel-section steel pipe 2 respectively, pull ring 3 is the pi type, and constructor takes out indent steel pipe 2 from concrete structure through pulling pull ring 3, and one can take out indent steel pipe 2 fast, and two have avoided beating the notch that damages the indent with the crowbar.

The time for dismantling the steel tube 2 is very important, the time for dismantling is too early, the concrete on the edge of the steel tube will be damaged, and the time for dismantling is too late, so that the difficulty for taking out the steel tube 2 is increased. In order to improve the accuracy of the dismantling time of the steel tube 2, a timing alarm 4 is arranged on the steel tube 2, the dismantling time of the steel tube 2 is determined according to concrete pouring conditions and experimental analysis, the time is input into the timing alarm 4, and the steel tube 2 is dismantled according to set alarm prompts.