CN210562325U - Structure seam structure of comprehensive pipe rack - Google Patents
Structure seam structure of comprehensive pipe rack Download PDFInfo
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- CN210562325U CN210562325U CN201920991001.5U CN201920991001U CN210562325U CN 210562325 U CN210562325 U CN 210562325U CN 201920991001 U CN201920991001 U CN 201920991001U CN 210562325 U CN210562325 U CN 210562325U
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Abstract
The utility model relates to a comprehensive pipe gallery structure seam structure, which is arranged along the longitudinal interval of the comprehensive pipe gallery, the structure seam structure is arranged in a cast-in-place structure part of the comprehensive pipe gallery, and the cast-in-place structure part is divided into a first casting section and a second casting section by taking the structure seam as a boundary; the structural seam construction includes: the structural joint is formed at the butt joint of the pre-cast section and the post-cast section; a water stop with one part embedded in the first pouring section, and the other part of the water stop extending out of the first pouring section and embedded in the later pouring section; the lower layer reinforcement cage and the upper layer reinforcement cage are embedded in the early casting section and are arranged close to the structural joint; and longitudinal steel bars embedded in the first casting section, wherein part of the longitudinal steel bars extend out of the first casting section and are embedded in the later casting section. Set up the lower structure seam of structural strength along utility tunnel longitudinal separation, can take place the fracture in structure seam department when receiving the stress effect, avoided the repair difficulty that unordered fracture brought.
Description
Technical Field
The utility model relates to a utility tunnel construction engineering field refers in particular to a utility tunnel structure seam structure.
Background
The construction of urban underground comprehensive pipe galleries is one of important contents for the construction of future urban infrastructure in China, and according to the regulations of urban comprehensive pipe gallery engineering technical specifications, structural deformation joints are required to be arranged every 30 meters of the comprehensive pipe galleries.
The setting up of movement joint has solved the inhomogeneous settlement and the concrete shrinkage problem of open cut underground structure, but has increased the waterproof degree of difficulty of utility tunnel. The movement joint all is the gap of the deformability who sets up of staying on utility tunnel structure, gap department has filled in flexible material usually, when taking place the inhomogeneous settlement of underground structure and concrete shrink, the stress that produces acts on the movement joint and makes the movement joint take place great deformation, the waterproof construction of movement joint can be destroyed to great deformation usually, and the movement joint is in case the infiltration takes place, not only reduced the durability of concrete, and deteriorated the piping lane environment, influenced the use of structural facilities, and cause the difficulty for the management in later stage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a utility tunnel structure seam structure, the deformation joint of solving current utility tunnel setting takes place the problem that infiltration and then influence the concrete structure quality easily takes place after great deformation.
The technical scheme for realizing the purpose is as follows:
the utility model provides a comprehensive pipe gallery structure seam structure, which is arranged along the longitudinal direction of the comprehensive pipe gallery at intervals, the structure seam structure is arranged in a cast-in-place structure part of the comprehensive pipe gallery, and the cast-in-place structure part is divided into a first casting section and a second casting section by taking the structure seam as a boundary; the structural seam construction includes:
the structural joint is formed at the butt joint of the pre-cast section and the post-cast section;
a water stop with one part embedded in the first pouring section, and the other part of the water stop extending out of the first pouring section and embedded in the later pouring section;
the lower layer reinforcement cage and the upper layer reinforcement cage are embedded in the early casting section, are close to the structural joint and are positioned below and above the corresponding part of the water stop; and
and the longitudinal steel bars are embedded in the first casting section, and part of the longitudinal steel bars extend out of the first casting section and are embedded in the later casting section.
When utility tunnel construction, the utility model discloses the butt joint that utilizes the concrete of successively pouring forms the structural joint, and structural joint department is equipped with the vertical reinforcing bar of connecting the section of watering earlier and the section of watering afterwards, because vertical reinforcing bar only is provided with the part to reduced the structural strength of structural joint, on whole utility tunnel, set up the lower structural joint of structural strength along its longitudinal separation, thereby make utility tunnel when the fracture because of temperature stress and inhomogeneous settlement, it can be in the structural joint department of setting emergence fracture, the repair difficulty that the unordered fracture brought has been avoided. The waterstop is buried underground at the structural joint, the waterstop is utilized to improve the waterproof effect of the structural joint, and the strength of the structural joint is far greater than that of a deformation joint in the prior art, so that the cracking degree is low, and the water leakage situation can be avoided to a certain extent.
The utility model discloses the further improvement of utility tunnel structure seam structure lies in, still including bury underground in another lower floor's steel reinforcement cage and another upper reinforcement cage in the post-cast section, another lower floor's steel reinforcement cage with another upper reinforcement cage is close to the structure seam sets up and is located the below and the top that the waterstop corresponds the part.
The utility model discloses the further improvement of utility tunnel structure seam structure lies in, the earlier 2/3 vertical reinforcing bar of watering in the section is followed the earlier section of watering stretches out and bury underground in the later section of watering.
The utility model discloses the further improvement of utility tunnel structure seam structure lies in, still including bury underground in earlier water the slip casting pipe in the section, the slip casting pipe is slope form setting, and the bottom is located structure seam department, the top is followed earlier water the section and lie in the inside surface department of utility tunnel and stretch out and form the slip casting mouth, just the slip casting pipe with upper steel reinforcement cage fixed connection.
The utility model discloses the further improvement of utility tunnel structure seam structure lies in, still include and lay in with the bottom plate bed course integrative reinforced structure who forms of locating utility tunnel bottom plate department modified waterproof asphalt felt on the bottom plate bed course, the position setting that reinforced structure corresponds the structure seam, just the inherent bed course steel reinforcement cage of anchor in the reinforced structure.
Drawings
Figure 1 is the utility model discloses utility tunnel structure seam structure department utility tunnel's transverse section schematic diagram.
Figure 2 is the utility model discloses utility tunnel structure seam structure is located the cross-sectional view of utility tunnel bottom plate department.
Fig. 3 is the utility model discloses the structural schematic of vertical reinforcing bar and structural joint in utility tunnel structural joint structure.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 1, the utility model provides a utility tunnel structure seam structure for solve because of the unordered fracture that temperature stress and inhomogeneous settlement brought, solve the piping lane seepage water scheduling problem that brings because of setting up the movement joint. The utility model discloses a vertically set up the less weak link of a plurality of rigidity along utility tunnel, utilize the quantity of setting for vertical reinforcing bar and passing to reduce rigidity, when arousing stress variation because of reasons such as difference in temperature, concrete shrinkage or inhomogeneous settlement, the structure seam place cross-section can ftracture in advance, and the internal energy of release concrete and avoid the concrete structure to appear the crack at will, reduce the harm of crack to utility tunnel. And the structural seam has certain structural strength, and can reduce the cracking or deformation degree of the structural seam, thereby avoiding great influence on the water stopping effect and avoiding the water leakage. The grouting guide pipe is preset at the structural joint, and the grouting guide pipe can be used for quick repair after the structural joint cracks in the later period, so that the construction is convenient. The utility model discloses utility tunnel structure seam structure is explained in the following with the attached drawing.
Referring to fig. 1, the utility model discloses utility tunnel structure seam structure department utility tunnel's transverse section schematic diagram is shown. Referring to fig. 2, the utility model discloses utility tunnel structure seam structure is located the cross-sectional view of utility tunnel bottom plate department. The utility model discloses utility tunnel structure seam structure is explained below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the utility model discloses a utility tunnel structure seam structure 20 lays along utility tunnel 10's longitudinal separation, and structure seam structure 20 locates in utility tunnel 10's cast-in-place structure part 18, and cast-in-place structure part 18 uses structure seam 21 to divide as the border and forms first section 181 and the post-cast section 182 of watering.
The utility model discloses a utility tunnel 10 can be for cast-in-place piping lane, still can be for prefabricated piping lane, prefabricated piping lane utilizes cast-in-place linkage segment to connect. In the cast-in-place pipe gallery, the cast-in-place structure part 18 is a comprehensive pipe gallery structure. In the prefabricated pipe gallery, the cast-in-place structural portion 18 is a cast-in-place connecting section.
The structure joint structure 20 of the utility model comprises a structure joint 21, a water stop 24, an upper layer reinforcement cage 23, a lower layer reinforcement cage 22 and a part of a longitudinal reinforcement 16; the structural joint 21 is formed at the joint of the first casting section 181 and the second casting section 182, the end face of the first casting section 181 close to the second casting section 182 to be constructed after casting is used as an end template of the second casting section 182, and when the second casting section 182 is cast, the concrete of the second casting section 182 is connected with the end face of the first casting section 181, so that the structural joint 21 is formed at the joint of the two concretes cast successively. That is, the structural joint 21 of the present invention is not a real joint, but a joint where the first casting section 181 and the second casting section 182 meet.
The utility model discloses a 24 some waterstops are buried underground in earlier watering section 181, and the other part of waterstop 24 stretches out and buries underground in post-watering section 182 from earlier watering section 181, and 24 perpendicular to structure joints of waterstop 21 sets up, utilizes waterstop 24 to block along structure joints 21 set up the interior outer route of permeating water of direction intercommunication utility tunnel 10, plays the effect of stagnant water antiseep.
The utility model discloses a lower floor's steel reinforcement cage 22 and upper reinforcement cage 23 bury underground in the section 181 of watering earlier, lower floor's steel reinforcement cage 22 and upper reinforcement cage 23 are close to the setting of structure seam 21 and are located the below and the top that 24 correspond the part of waterstop, improve the structural strength of structure seam structure 20 through setting up at the upper reinforcement cage 23 of structure seam 21 lateral part and lower floor's steel reinforcement cage 22, and upper reinforcement cage 23 and lower floor's steel reinforcement cage 22 locate the top and the below that 24 correspond the part of waterstop, also can play certain guard action to waterstop 24. When upper reinforcing cage 23 and lower floor's reinforcing cage 22 improved the structural strength of structure seam structure 20, can restrain the fracture degree of structure seam 21, and then avoided the damage to waterstop 24, protected waterstop 24's water-proof effects.
The longitudinal steel bars 16 are arranged along the arrangement direction of the comprehensive pipe gallery 10, the longitudinal steel bars 16 are arranged in the early casting section 181 at intervals, and a part of the longitudinal steel bars 16 in the early casting section 181 extends out of the early casting section 181 and is buried in the late casting section 182. Utilize a certain amount of longitudinal reinforcement 16 to tie and connect first section 181 of watering and post-cast section 182, provide certain rigidity and intensity for structure seam structure 20, but rigidity and intensity of structure seam 21 department of structure seam structure 20 are less than the structural rigidity and the intensity of the rest of utility tunnel 10, thereby when utility tunnel 10 receives the stress variation that causes because of the reasons such as difference in temperature, concrete shrinkage or differential settlement, structure seam 21 can split deformation in advance as weak node, thereby the stress that utility tunnel structure received has been released, it takes place random crack to have avoided the rest of utility tunnel structure, make the crack position of utility tunnel controllable, and the structure seam 21 that has certain rigidity and intensity can reduce the degree of fracture, and then guarantee the stagnant water effect, avoid taking place the phenomenon of leaking.
In one embodiment, the structural joint structure 20 of the present invention further includes another lower reinforcement cage 22 'and another upper reinforcement cage 23' buried in the post-cast section 182, and the another lower reinforcement cage 22 'and the another upper reinforcement cage 23' are disposed near the structural joint 21 and below and above the corresponding portion of the water stop 24. Similarly, another lower reinforcement cage 22 'and another upper reinforcement cage 23' disposed in the post-cast section 182 are used to improve the structural strength of the structural joint structure 20, and the another lower reinforcement cage 22 'and the another upper reinforcement cage 23' are disposed above and below the corresponding portions of the water stop 24, so as to protect the water stop 24. The other lower reinforcement cage 22 'and the other upper reinforcement cage 23' improve the structural strength of the structural joint structure 20, and simultaneously can inhibit the cracking degree of the structural joint 21, thereby avoiding the damage to the water stop 24 and protecting the waterproof effect of the water stop 24.
In one embodiment, as shown in fig. 2 and 3, 2/3 of the longitudinal rebars 16 in the pre-cast section 181 extend from the pre-cast section 181 and are embedded in the post-cast section 182. 2/3 of the total number of the longitudinal reinforcing bars 16 is passed through the structural joint 21, that is, the 2/3 longitudinal reinforcing bars 16 are partially buried in the pre-cast section 181 and partially buried in the post-cast section 182, and 1/3 longitudinal reinforcing bars 16 are cut off at the structural joint 21. The use of 2/3 longitudinal rebar 16 through structural joint 21 reduces the stiffness and strength of the structural joint structure 20 so that it can crack or deform in advance when the utility tunnel 10 is stressed.
In a specific embodiment, as shown in fig. 2, the utility model discloses a structure seam structure 20 is still including burying the slip casting pipe 27 in the section 181 of watering earlier underground, and slip casting pipe 27 is the slope form setting, and the bottom is located structure seam 21 department, and the top is located the inside surface department of utility tunnel 10 from the section 181 of watering earlier and stretches out and form slip casting mouth 271, and slip casting pipe 27 and upper steel reinforcement cage 23 fixed connection. When the crack occurs at the structural joint 21 through the arranged grouting guide pipe 27, the crack is repaired in time, and the problem of water leakage is further solved.
In a specific embodiment, the utility model discloses a structure seam structure 20 still includes with locate utility tunnel 10 bottom plate bed course 17 the integrative reinforced structure 25 that forms of bottom plate bed course 17 department and lay on bottom plate bed course 17 modified waterproof asphalt felt 26, reinforced structure 25 corresponds the position setting of structure seam 21, and the inherent bed course steel reinforcement cage 251 of anchor in the reinforced structure 25.
As shown in fig. 1, the utility model discloses a utility tunnel 10 includes bottom plate 11, side wall 12 and roof 13, all is provided with horizontal reinforcing bar 15 and longitudinal reinforcement 16 in bottom plate 11, side wall 12 and roof 13, and the trend of horizontal reinforcing bar 15 perpendicular to utility tunnel 10 sets up, and longitudinal reinforcement 16 sets up along the trend of utility tunnel 10. The both sides of bottom plate 11 are located to the side wall 12, and the top at side wall 12 is established to roof 13 lid, still is equipped with partition wall 14 in utility tunnel 10's inside, divides utility tunnel 10 inner space in order to form many storehouses through partition wall 14.
After the foundation pit of the comprehensive pipe gallery 10 is dug, the bottom plate cushion layer 17 is constructed at the bottom, and then the bottom plate 11 is constructed on the bottom plate cushion layer 17. For the prefabricated pipe gallery, the bottom plate cushion layer 17 is constructed firstly, and then the prefabricated pipe gallery segments are hoisted and fixed. As shown in fig. 2, when constructing the bottom mat 17, the bottom of the pit corresponding to the structural joint 21 is dug downward to form a strip-shaped groove, and then the mat reinforcement cage 251 is placed in the strip-shaped groove, the width of the mat reinforcement cage 251 is greater than the distance between the two far outer sides of the lower layer reinforcement cages 22 and 22'. And then pouring a bottom plate cushion layer, forming a reinforcing structure 25 in the strip-shaped groove, and utilizing the reinforcing structure 25 to play a role in reinforcing to avoid the bottom plate from generating small-radius deflection and shearing damage. A modified waterproof asphalt felt 26 is laid on the reinforcing structure 25, and the width of the modified waterproof asphalt felt 26 is consistent with that of the bedding reinforcement cage 251. The modified waterproof asphalt felt 26 is used for preventing the bottom plate from being waterproof, and water leakage of the bottom plate is avoided.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (5)
1. The utility model provides a utility tunnel structure seam structure, along the longitudinal interval of utility tunnel lays, characterized in that, structure seam structure locates in the cast-in-place structure part of utility tunnel, cast-in-place structure part uses structure seam as the boundary division to form first casting section and post-casting section; the structural seam construction includes:
the structural joint is formed at the butt joint of the pre-cast section and the post-cast section;
a water stop with one part embedded in the first pouring section, and the other part of the water stop extending out of the first pouring section and embedded in the later pouring section;
the lower layer reinforcement cage and the upper layer reinforcement cage are embedded in the early casting section, are close to the structural joint and are positioned below and above the corresponding part of the water stop; and
and the longitudinal steel bars are embedded in the first casting section, and part of the longitudinal steel bars extend out of the first casting section and are embedded in the later casting section.
2. The utility tunnel structural joint configuration of claim 1, further comprising another lower reinforcement cage and another upper reinforcement cage embedded in the post-cast section, the another lower reinforcement cage and the another upper reinforcement cage disposed proximate to the structural joint and below and above the water stop corresponding portion.
3. The utility tunnel structural joint structure of claim 1, wherein 2/3 of the longitudinal steel bars in the pre-cast section extend from the pre-cast section and are embedded in the post-cast section.
4. The utility tunnel structural joint structure of claim 1, further comprising grouting pipes embedded in the pre-cast section, wherein the grouting pipes are arranged in an inclined manner, the bottom of the grouting pipes is located at the structural joint, the top of the grouting pipes extends out of the surface of the pre-cast section located inside the utility tunnel to form a grouting opening, and the grouting pipes are fixedly connected with the upper reinforcement cage.
5. The utility tunnel structure seam construction of claim 1, further comprising a reinforcing structure integrally formed with the floor mat layer provided at the floor of the utility tunnel and a modified waterproof asphalt felt laid on the floor mat layer, wherein the reinforcing structure is provided corresponding to the position of the structure seam, and a mat reinforcement cage is anchored in the reinforcing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991001.5U CN210562325U (en) | 2019-06-27 | 2019-06-27 | Structure seam structure of comprehensive pipe rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920991001.5U CN210562325U (en) | 2019-06-27 | 2019-06-27 | Structure seam structure of comprehensive pipe rack |
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| Publication Number | Publication Date |
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| CN210562325U true CN210562325U (en) | 2020-05-19 |
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| CN201920991001.5U Active CN210562325U (en) | 2019-06-27 | 2019-06-27 | Structure seam structure of comprehensive pipe rack |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359495A (en) * | 2019-06-27 | 2019-10-22 | 中国建筑第八工程局有限公司 | Comprehensive pipe gallery structure seam construction and its construction method |
| CN111851597A (en) * | 2020-07-31 | 2020-10-30 | 安徽省交通建设股份有限公司 | Penetration protection structure of pipe jacking close-distance downward-penetrating pipe gallery and construction method |
-
2019
- 2019-06-27 CN CN201920991001.5U patent/CN210562325U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359495A (en) * | 2019-06-27 | 2019-10-22 | 中国建筑第八工程局有限公司 | Comprehensive pipe gallery structure seam construction and its construction method |
| CN111851597A (en) * | 2020-07-31 | 2020-10-30 | 安徽省交通建设股份有限公司 | Penetration protection structure of pipe jacking close-distance downward-penetrating pipe gallery and construction method |
| CN111851597B (en) * | 2020-07-31 | 2021-09-07 | 安徽省交通建设股份有限公司 | Penetration protection structure of pipe jacking close-distance downward-penetrating pipe gallery and construction method |
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