CN111851593A - Reinforced concrete slab culvert assembled settlement joint and construction method - Google Patents
Reinforced concrete slab culvert assembled settlement joint and construction method Download PDFInfo
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- CN111851593A CN111851593A CN202010633329.7A CN202010633329A CN111851593A CN 111851593 A CN111851593 A CN 111851593A CN 202010633329 A CN202010633329 A CN 202010633329A CN 111851593 A CN111851593 A CN 111851593A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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Abstract
The invention discloses a reinforced concrete slab culvert assembled settlement joint and a construction method, wherein the assembled settlement joint comprises two settlement joint side plates which are oppositely arranged and joint filling materials filled between the settlement joint side plates; the outside of subsiding crack curb plate is provided with a plurality of regulation poles, the one end of adjusting the pole with the subsiding crack curb plate is connected, the other end of adjusting the pole with preset muscle in the apron culvert is connected. By utilizing the fabricated settlement joint, continuous pouring operation can be realized in the construction process of the reinforced concrete slab culvert, the construction period is shortened, and meanwhile, the fabricated settlement joint can be prefabricated in a factory and the appearance quality and the compactness of an internal joint filling material can be ensured.
Description
Technical Field
The invention relates to the technical field of reinforced concrete slab culvert construction, in particular to a reinforced concrete slab culvert assembled settlement joint and a construction method.
Background
The plate culvert is a form of culvert, and has the advantages of clear stress, simple structure and convenient construction. The structure form of the slab culvert is basically the same as that of a single-span simple supporting plate girder bridge, and the span of the slab culvert is smaller. The slab culvert mainly comprises a slab, a culvert platform, a foundation, a settlement joint and the like. The water passing area in the plate culvert is larger than that of an arch culvert with the same aperture, and the drainage capacity is stronger than that of the arch culvert.
The settlement joint is a gap preset in the building to reduce the influence of uneven deformation of the foundation on the building. Generally, a settlement joint is required to be arranged at intervals of 4-6 m on the cover plate culvert body, and two end faces at the settlement joint are vertical and flat and cannot be staggered up and down. The width of the settlement joint is required to meet the design rule, the design is random and timing, and 20-30 mm can be adopted. The joint compound should be elastic and impermeable (mostly bitumen batting) and should be tightly packed. In the construction process, the cover plate, the culvert platform and the foundation are cast by jumping the bin in sections according to the height of the cover plate culvert and the position of the settlement joint, and the settlement joint is reserved in a mode of placing foam plates or wood plates between adjacent sections. When the construction period is short, the continuous casting can be carried out, firstly, wood boards or foam boards are placed at the settlement joints and are firmly fixed, and then, the continuous casting is carried out in different bins. After concrete pouring is finished, manually removing the foam boards or the wood boards in the seams, filling the gaps with hemp battings, and pouring hot asphalt to compact the gaps so as to prevent water leakage.
Although the vertical and flat settlement joint can be better ensured by sectional skip cabin pouring, the construction period is increased; although the continuous pouring accelerates the construction progress, the verticality and the line type of the settlement joint after the pouring are poor due to the insufficient rigidity of the foam board and the wood board. In addition, in the process of manually removing the foam boards or the wood boards in the settlement joints and filling asphalt flocs into the settlement joints, the phenomena of untight filling and poor appearance quality of the asphalt flocs are easy to occur due to the factors such as the technical level and responsibility of workers.
Disclosure of Invention
The invention provides a reinforced concrete slab culvert assembled settlement joint and a construction method, which can ensure the construction quality of the settlement joint, realize the continuous pouring of the slab culvert and greatly shorten the construction period.
In order to achieve the purpose, the invention provides a reinforced concrete slab culvert assembled settlement joint which comprises two settlement joint side plates arranged oppositely and joint filling materials filled between the settlement joint side plates;
the outside of subsiding crack curb plate is provided with a plurality of regulation poles, the one end of adjusting the pole with the subsiding crack curb plate is connected, the other end of adjusting the pole with preset muscle in the apron culvert is connected.
Preferably, one end of the adjusting rod, which is close to the settlement joint side plate, is provided with a first connecting sleeve along the radial direction, a second connecting sleeve with the same inner diameter as the first connecting sleeve is arranged at the joint of the settlement joint side plate and the adjusting rod, and a transverse connecting bolt is arranged in the first connecting sleeve and the second connecting sleeve in a penetrating manner.
Preferably, one end of the adjusting rod, which is far away from the settlement joint side plate, is provided with a third connecting sleeve along the radial direction, and the third connecting sleeve is sleeved on the preset rib.
Preferably, the adjusting rod comprises a first screw rod, a second screw rod and a bidirectional threaded sleeve connecting the first screw rod and the second screw rod.
Preferably, the adjusting rods are uniformly arranged along the center line of the settlement joint side plate.
Preferably, the joint compound is asphalt batting.
Preferably, a fourth connecting sleeve perpendicular to the side line of the sinker seam side plate is further arranged at a position close to the side line of the sinker seam side plate.
Preferably, the preset ribs are side mold pull rods.
In order to achieve the above object, another aspect of the present invention further provides a construction method for an assembled settlement joint of a reinforced concrete slab culvert, wherein the construction method for the assembled settlement joint of the reinforced concrete slab culvert comprises the following steps:
s1, manufacturing settlement joint side plates, clamping and plugging a joint filler between two opposite settlement joint side plates, and then installing an adjusting rod on the outer sides of the settlement joint side plates to form an assembled settlement joint, wherein the thickness of the joint filler is the same as that of the settlement joint of the cover plate culvert;
s2, placing the fabricated settlement joint at the position of the settlement joint of the slab culvert, and fixedly connecting one end of the adjusting rod, which is far away from the settlement joint side plate, with a preset rib in the slab culvert;
s3, fine-adjusting the length of the adjusting rod to enable the fabricated settlement joint to be vertical, and then pouring the slab culvert concrete in different bins.
Preferably, if the height of the plate culvert settlement joint is greater than that of a single fabricated settlement joint, a plurality of fabricated settlement joints are arranged at the positions of the plate culvert settlement joints in the step S2, and a vertical connecting bolt is arranged between two vertically adjacent fabricated settlement joints to fixedly connect the two fabricated settlement joints.
According to the above description and practice, the fabricated settlement joint of the reinforced concrete slab culvert adopts a structure that the filling material is clamped and plugged between two settlement joint side plates and a plurality of adjusting rods are arranged on two sides. Utilize this structure can realize that the mill of apron culvert subsiding crack is prefabricated, refer to the corresponding assembled subsiding crack of drawing preparation of apron culvert subsiding crack in advance, the job site only need lay according to the position at the assembled subsiding crack finish the back adjustment hang down straightness can, and the adjustment hang down straightness only need finely tune the length of the regulating lever of both sides, and operation process is convenient simple, has effectively improved the efficiency of construction. Compared with the traditional field construction operation, the working procedures of erecting the wood board, filling foam, cleaning the wood board foam, filling asphalt floc and the like are reduced, and the construction period is shortened. On the other hand, after the assembly type settlement joint is adopted, the cover plate culvert can be continuously poured, the construction period is greatly shortened compared with a pouring mode of sectional skip, and two sides of the assembly type settlement joint are fixedly connected with the preset ribs of the cover plate culvert through the connecting rods, so that the settlement joint cannot deform during pouring operation of the cover plate culvert, and the verticality and smoothness of the settlement joint are guaranteed. In addition, the fabricated settlement joint can be manufactured in advance in a unified mode, and the compactness and the appearance quality of joint filling materials in the fabricated settlement joint can be guaranteed.
Drawings
Fig. 1 is a schematic side view of a reinforced concrete slab culvert fabricated settlement joint according to an embodiment of the present invention.
Fig. 2 is a schematic plan view of a reinforced concrete slab culvert fabricated settlement joint according to an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a of fig. 1.
Fig. 4 is an enlarged schematic view of a portion B in fig. 2.
In the figure:
1. settling joint side plates;
2. filling a gap;
3. the adjusting rod 31, the first screw rod 32, the second screw rod 33 and the bidirectional threaded sleeve;
4. presetting ribs;
5. a first connecting sleeve;
6. a second connecting sleeve;
7. a transverse connecting bolt;
8. a third connecting sleeve;
9. a fourth connecting sleeve;
10. vertical connecting bolt.
Detailed Description
Exemplary embodiments will now be described more fully with reference to the accompanying drawings. The exemplary embodiments, however, may be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. In the present disclosure, the terms "include", "arrange", "disposed" and "disposed" are used to mean open-ended inclusion, and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting as to the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic side view of a reinforced concrete slab culvert fabricated settlement joint according to an embodiment of the present invention. Fig. 2 is a schematic plan view of a reinforced concrete slab culvert fabricated settlement joint according to an embodiment of the present invention. Fig. 3 is an enlarged view of a portion a of fig. 1. Fig. 4 is an enlarged schematic view of a portion B in fig. 2.
In an exemplary embodiment of the present disclosure, a reinforced concrete slab culvert fabricated settlement joint is provided, referring to fig. 1 to 4, which mainly includes two settlement joint side plates 1 arranged opposite to each other and joint filler 2 filled between the settlement joint side plates 1. The two settlement joint side plates 1 are arranged in parallel, and the distance between the two settlement joint side plates is the thickness of the settlement joint of the cover plate culvert. The joint compound 2 is preferably asphalt batting, although other materials with sealing and elasticity can be used as the joint compound, and will not be described in detail herein. The inner side surface of the settlement joint side plate 1 is also provided with a plurality of spikes to increase the adhesive force between the asphalt bast fibers and the settlement joint side plate 1, and in addition, the adhesive can be coated to ensure that the asphalt bast fibers or other joint filling materials are firmly adhered to the settlement joint side plate. The settlement joint side plate 1 is preferably a steel plate with a thickness of 5mm to 20mm, which facilitates welding of the connection device on the outer side thereof and also facilitates welding of the wave crest on the inner side thereof.
As shown in fig. 1 and 2, a plurality of adjusting rods 3 are further arranged on the outer side surface of the settlement joint side plate 1, one end of each adjusting rod 3 is connected with the settlement joint side plate 1, and the other end of each adjusting rod 3 is connected with a preset rib 4 in the cover plate culvert 11. When the slab culvert 11 is poured, the formworks on two sides need to be erected firstly, then the steel bar net rack is arranged in the middle of the formworks, and meanwhile, in order to fix the formworks on two sides, a side mold pull rod can be arranged between the formworks. The side die pull rods penetrate through the templates on the two sides of the cover plate culvert 11, and nuts are arranged at the two ends of the side die pull rods to limit the templates, so that the templates cannot expand towards the two sides. The preset rib 4 can be a side die pull rod or a reinforcing steel bar net rack arranged in the middle of the template, namely, one end of the adjusting rod 3, which is far away from the settlement joint side plate 1, is connected to the side die pull rod or the reinforcing steel bar net rack. The adjusting rod 3 is of a telescopic structure and aims to adjust the distance between the settlement joint side plate and the preset rib 4 so as to adjust the verticality of the settlement joint side plate 1. The adjusting rods 3 are uniformly arranged along the central line of the settlement joint side plate 1, so that the perpendicularity of the settlement joint side plate can be adjusted by the least adjusting rods.
As shown in fig. 4, the adjustment lever 3 includes a first lead screw 31, a second lead screw 32, and a double-threaded sleeve 33 connecting the first lead screw 31 and the second lead screw 32. The first lead screw 31 and the second lead screw 32 are connected with the two-way threaded sleeve 33 through threads, and the first lead screw 31 and the second lead screw 32 can be far away or close by rotating the two-way threaded sleeve 33 in a forward direction or a reverse direction, so that the length of the whole adjusting rod 3 can be adjusted. One end of the first screw rod 31 is connected with the settlement joint side plate 1, and one end of the second screw rod 32 is connected with the preset rib 4, so that the distance between the settlement joint side plate 1 and the preset rib 4 can be finely adjusted by rotating the bidirectional threaded sleeve 33. The central line of the settlement joint side plate 1 is provided with a plurality of adjusting rods 3, and the verticality of the settlement joint side plate 1 can be adjusted by finely adjusting the lengths of the adjusting rods 3.
Specifically speaking, the fixed first connecting sleeve 5 that is provided with on the terminal surface that is close to 1 one end of subsiding crack curb plate of first lead screw 31, the length of first connecting sleeve 5 perpendicular to first lead screw 31 is to, be provided with second connecting sleeve 6 at the external fixed surface of subsiding crack curb plate 1 simultaneously, the internal diameter of first connecting sleeve 5 and second connecting sleeve 6 is the same, wear to be equipped with transverse connection bolt 7 between the two, thereby will adjust the one end of pole 3 and the articulated linking to each other of subsiding crack curb plate 1, be convenient for adjust the straightness that hangs down of subsiding crack curb plate 1. The second connecting sleeve 6 is connected with the outer side plate surface of the settlement joint side plate in a welding mode, and the first connecting sleeve 5 is connected with the end face of the first screw rod 31 in a welding mode. A third connecting sleeve 8 is fixedly arranged on the end face of the second screw rod 32 close to one end of the preset rib 4, and the third connecting sleeve 8 is sleeved on the preset rib 4. The third connecting sleeve 8 is connected with the end face of the second screw rod 32 in a welding mode.
When the settlement joint side plate 1 is manufactured, the size of the settlement joint of the cover plate culvert needs to be referred, when the height of the settlement joint of the cover plate culvert is smaller, only one assembled settlement joint can be arranged, and the height of the assembled settlement joint is equal to the height of the settlement joint of the cover plate culvert; when the height of the settlement joint is larger, a plurality of assembled settlement joints can be spliced up and down, so that the total height of the assembled settlement joints is equal to the height of the settlement joint. The height of a single assembly type settlement joint is controlled within a certain range, so that the single assembly type settlement joint is convenient to manufacture, transport and install, and particularly, the height of the single assembly type settlement joint is 1-2 m and can be adjusted within the range according to the actual height of the settlement joint of the cover plate culvert.
In order to connect the vertically adjacent fabricated settlement joints more stably, a fourth connecting sleeve 9 perpendicular to the side line of the settlement joint side plate 1 is further arranged at a position close to the side line of the settlement joint side plate 1, and the fourth connecting sleeve 9 is preferably arranged at the position of the center line. When two upper and lower assembled subsiding seams need the concatenation, align the fourth connecting sleeve on the subsiding seam curb plate separately to wear to establish vertical connecting pin 10 in it, alright with two upper and lower assembled subsiding seams fixed connection together. When the width of the assembled settlement joint exceeds 50cm, a plurality of fourth connecting sleeves can be uniformly distributed at the side line of the settlement joint side plate 1, and the connecting stability of two adjacent assembled settlement joints is further enhanced.
In addition, the embodiment also discloses a construction method of the assembled settlement joint of the reinforced concrete slab culvert, which applies the assembled settlement joint and mainly comprises the following steps:
and step S1, manufacturing the fabricated settlement joint. Firstly, determining the height of a single assembly type settlement joint according to the height of a plate culvert settlement joint to be constructed, wherein for example, the height of the plate culvert settlement joint is 3 meters, the height of the single assembly type settlement joint can be determined to be 1 meter or 1.5 meters, and for example, the height of the plate culvert settlement joint is 1 meter, the height of the single assembly type settlement joint can be determined to be 1 meter, namely, one assembly type settlement joint can be arranged when the height of the plate culvert settlement joint is smaller, and a mode of splicing a plurality of assembly type settlement joints with smaller sizes can be adopted when the height of the plate culvert settlement joint is larger; after the size is determined, the settlement joint side plates can be manufactured, a single fabricated settlement joint comprises two settlement joint side plates, settlement joint side plates with the same size are manufactured according to the width and the height of the fabricated settlement joint, then a joint filler is clamped between the two settlement joint side plates, and the thickness of the joint filler is equal to that of the settlement joint of the cover plate culvert; and finally, a plurality of adjusting rods capable of adjusting the length of the adjusting rods are hinged to the outer side of the settlement joint side plate.
And step S2, laying the fabricated settlement joint. The fabricated settlement joint is arranged at the position of the settlement joint of the slab culvert, and the outer end of the adjusting rod is fixedly connected to the preset rib in the slab culvert. If a mode of splicing a plurality of assembled settlement joints is adopted, a vertical connecting bolt is required to be arranged between the adjacent assembled settlement joints so as to fixedly connect the adjacent assembled settlement joints together.
And step S3, fine-tuning the length of the adjusting rod to enable the whole assembled settlement joint to be vertical. Referring to fig. 1, if the upper end of the fabricated settlement joint inclines to the right side, the adjusting rod on the right side of the upper end can be finely adjusted to increase the length of the fabricated settlement joint, and meanwhile, the adjusting rod on the left side of the upper end is finely adjusted to decrease the length of the fabricated settlement joint, so that the upper end of the fabricated settlement joint can incline to the left side until the fabricated settlement joint is wholly vertical. In the same way, the length of the adjusting rod at the lower end of the assembled settlement joint can be finely adjusted in an opposite mode, and the purpose of adjusting the verticality can be achieved. After the fabricated settlement joints are arranged and installed in the settlement joints of the plate culvert, concrete of the plate culvert can be poured simultaneously in different bins, and the construction period of the plate culvert is greatly shortened.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. The reinforced concrete slab culvert assembled settlement joint is characterized by comprising two settlement joint side plates which are arranged oppositely and joint filling materials filled between the settlement joint side plates;
the outside of subsiding crack curb plate is provided with a plurality of regulation poles, the one end of adjusting the pole with the subsiding crack curb plate is connected, the other end of adjusting the pole with preset muscle in the apron culvert is connected.
2. The reinforced concrete slab culvert assembled settlement joint of claim 1, wherein one end of the adjusting rod close to the settlement joint side plate is provided with a first connecting sleeve along the radial direction, a second connecting sleeve with the same inner diameter as the first connecting sleeve is arranged at the joint of the settlement joint side plate and the adjusting rod, and a transverse connecting bolt is arranged in the first connecting sleeve and the second connecting sleeve in a penetrating way.
3. The fabricated settlement joint of reinforced concrete slab culvert as claimed in claim 1, wherein one end of the adjusting rod away from the settlement joint side plate is provided with a third connecting sleeve along the radial direction, and the third connecting sleeve is sleeved on the preset rib.
4. The fabricated settlement joint of a reinforced concrete slab culvert according to claim 1, wherein the adjusting rod comprises a first lead screw, a second lead screw and a bidirectional threaded sleeve connecting the first lead screw and the second lead screw.
5. The reinforced concrete slab culvert fabricated settlement joint of any one of claims 1 to 4, wherein the adjustment rods are uniformly arranged along the centerline of the settlement joint side plate.
6. The reinforced concrete culvert fabricated settlement joint of any one of claims 1 to 4, wherein the joint compound is asphalt batting.
7. The reinforced concrete slab culvert assembled settlement joint of any one of claims 1 to 4, wherein a fourth connecting sleeve perpendicular to the settlement joint side plate borderline is further provided at a position close to the settlement joint side plate borderline.
8. The reinforced concrete slab culvert fabricated settlement joint of claim 1 or 3, wherein the preset ribs are side mold tie rods.
9. A construction method of a reinforced concrete slab culvert assembled settlement joint is characterized by comprising the following steps:
s1, manufacturing settlement joint side plates, clamping and plugging a joint filler between two opposite settlement joint side plates, and then installing an adjusting rod on the outer sides of the settlement joint side plates to form an assembled settlement joint, wherein the thickness of the joint filler is the same as that of the settlement joint of the cover plate culvert;
s2, placing the fabricated settlement joint at the position of the settlement joint of the slab culvert, and fixedly connecting one end of the adjusting rod, which is far away from the settlement joint side plate, with a preset rib in the slab culvert;
s3, fine-adjusting the length of the adjusting rod to enable the fabricated settlement joint to be vertical, and then pouring the slab culvert concrete in different bins.
10. The construction method of the reinforced concrete slab culvert fabricated settlement joint as claimed in claim 9, wherein if the height of the slab culvert settlement joint is greater than the height of a single fabricated settlement joint, a plurality of fabricated settlement joints are provided at the positions of the slab culvert settlement joints in the step S2, and a vertical connecting pin is provided between two vertically adjacent fabricated settlement joints to fixedly connect the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633329.7A CN111851593A (en) | 2020-07-02 | 2020-07-02 | Reinforced concrete slab culvert assembled settlement joint and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010633329.7A CN111851593A (en) | 2020-07-02 | 2020-07-02 | Reinforced concrete slab culvert assembled settlement joint and construction method |
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| CN111851593A true CN111851593A (en) | 2020-10-30 |
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| CN202010633329.7A Pending CN111851593A (en) | 2020-07-02 | 2020-07-02 | Reinforced concrete slab culvert assembled settlement joint and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201391A (en) * | 2023-03-13 | 2023-06-02 | 华侨大学 | Building settlement joint repairing device and construction method |
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2020
- 2020-07-02 CN CN202010633329.7A patent/CN111851593A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201391A (en) * | 2023-03-13 | 2023-06-02 | 华侨大学 | Building settlement joint repairing device and construction method |
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Effective date of registration: 20230321 Address after: 100085 Beijing Daxing District Beijing economic and Technological Development Zone, Kangding street 1, 2, six or seven stories. Applicant after: MCC COMMUNICATION CONSTRUCTION GROUP Co.,Ltd. Address before: 065201 3rd floor, building 5, Zhongxing science and Technology Park, west side of Yanling road and north side of high voltage corridor, Yanjiao Development Zone, Sanhe City, Langfang City, Hebei Province Applicant before: MCC Rail Transit Co.,Ltd. |