Supporting structure for comprehensive pipe gallery construction

Abstract

The utility model provides a comprehensive pipe gallery construction supporting structure which is used for solving the problems that an existing supporting structure is complex and poor in stability. Which comprises a supporting plate and a plurality of supporting units which are arranged at intervals and form multi-point supporting for the supporting plate, and is characterized in that each supporting unit is composed of a gantry frame, a steel pin and a hydraulic jack, and the two same gantry frames are arranged in pairs and are hinged under the connecting action of the steel pin; and a hydraulic jack is arranged between the two gantry frames and is used for adjusting the opening and closing angles of the two gantry frames. The construction ditch is rapidly supported through the simple and efficient gantry frame, the hydraulic jacks in the supporting structure do not directly bear lateral extrusion force generated by soil on the two sides, the counter-acting force on the hydraulic jacks is reduced, and under the action of the hydraulic jacks of the same specification, the overall stability of the supporting structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction support structure of comprehensive pipe gallery. Background Art

[0002] The construction support of the integrated pipeline corridor can be divided into steel structure support and concrete beam support according to the different structures. Among them, steel structure support is a detachable support method. Due to its good reusability, it is widely used in engineering.

[0003] CN115772902A discloses a support structure for pipe gallery construction, comprising two support plates, the outer walls of the two support plates are fixedly connected with a water-stop curtain, the slider is fixedly connected with a first sleeve and a second sleeve respectively, the upper ends of the first sleeves and the second sleeves are fixedly connected with a top plate, and a device groove is provided in the base, and a rotating mechanism for rotating a plurality of threaded rods is installed in the device groove. The construction process of the support structure is complicated and inconvenient for construction.

[0004] CN115679979A discloses a deep foundation pit support for the construction of an integrated pipe gallery. The longitudinal concrete beams and the transverse bracing concrete beams are prefabricated according to the size of the integrated pipe gallery to be constructed, that is, the foundation pit is supported by the concrete beams.

[0005] Therefore, improving the convenience of construction is an important factor to be considered in steel structure support structures. Utility Model Content

[0006] In order to solve the deficiencies of the prior art, the utility model provides a comprehensive pipe gallery construction support structure, which is used to solve the problems of the existing support structure being complex and having poor stability performance.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] The integrated pipe corridor construction support structure includes a support plate and a plurality of support units, wherein the plurality of support units are arranged at intervals and form multi-point support for the support plate, and is characterized in that: the support unit is composed of a gantry frame, a steel pin, and a hydraulic jack, wherein each gantry frame includes columns on both sides and a crossbeam connecting the two columns in the middle, and a steel pin is arranged at the center position of the crossbeam, two identical gantry frames are arranged in pairs and are hingedly connected under the connecting action of the steel pin, and a hydraulic jack is arranged between the two gantry frames, and the hydraulic jack adjusts the opening and closing angles of the two gantry frames.

[0009] Furthermore, the outer side of the column is a triangular auxiliary frame, and the outer side of the auxiliary frame abuts against the supporting plate.

[0010] Furthermore, the gantry frame is in abutment with the supporting plates on both sides.

[0011] Furthermore, the steel sections used in the gantry frame are round steel pipes, rectangular steel pipes or I-beams.

[0012] Furthermore, the support plate is a corrugated plate or a rib plate with a concave-convex structure, and the prismatic reinforcement ribs of the corrugated plate or the rib plate are arranged along the length direction of the support plate.

[0013] The beneficial effects of the utility model are:

[0014] This technology achieves rapid support for the construction trench through a simple and efficient gantry frame, and the hydraulic jacks in the support structure do not directly bear the lateral extrusion pressure generated by the soil on both sides, which reduces the reaction force on the hydraulic jacks. Under the action of hydraulic jacks of the same specifications, the overall stability of the support structure is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model.

[0016] Figure 2 Application of this support structure in the construction trench.

[0017] Figure 3 for Figure 2 Cross-sectional view of .

[0018] Figure 4 for Figure 3 Further improved structural diagram.

[0019] In the figure:

[0020] 00 construction trench, 01 integrated pipeline gallery,

[0021] 10 support plates,

[0022] 20 supporting unit, 21 gantry frame, 211 column, 212 beam, 22 steel pin, 23 hydraulic jack, 24 auxiliary frame. DETAILED DESCRIPTION

[0023] The support structure for the construction of the integrated pipe gallery includes a support plate 10 and a plurality of support units 20, which are arranged at intervals to form multi-point support for the support plate. Each support unit is a variable structure composed of a gantry frame, a steel pin, and a hydraulic jack. The support unit provides a lifting force through a hydraulic jack to support the construction trenches of the integrated pipe gallery on both sides. The overall hoisting operation is adopted, which has the advantages of rapid installation and rapid dismantling, and is widely applicable to municipal pipe gallery construction projects.

[0024] In conjunction with the instruction manual Figure 1 To Attachment Figure 3 , the utility model is described in detail.

[0025] The support plate 10 has a long length, which is consistent with the direction of the excavated construction trench and is not less than 5 meters. The long length of the support plate is conducive to the rapid progress of the construction, that is, a larger support plate can be quickly installed in place through hoisting. The support plate is provided on each side of the construction trench to form a support. The support plate 10 is a corrugated plate or rib plate with a concave-convex structure, which has a better anti-bending effect. For example, Figure 1 The prismatic reinforcement ribs of the corrugated plate or rib plate are arranged along the length direction of the support plate, that is, along the length direction of the construction trench, so that the support plate has higher bending strength in the length direction of the trench and meets the requirement of setting a gantry frame at a certain distance.

[0026] The gantry frame 21 is a steel structure, such as galvanized steel. From the perspective of spatial structure, the gantry frame is composed of columns 211 on both sides and a crossbeam 212 connecting the tops of the two columns in the middle. A steel pin 22 is provided at the center of the crossbeam, and the steel pin is hinged. The steel used in the gantry frame is a large-sized rectangular steel pipe or I-beam, which has a larger cross-section and can withstand greater mechanical properties.

[0027] Two identical gantry frames are arranged in pairs, and form a movable hinge connection under the connection of the steel pin. It is easy to understand that a deformable structure is formed between the two gantry frames. In this structure, a hydraulic jack 23 is arranged between the two gantry frame columns on the same side, and the two ends of the hydraulic jack 23 are respectively hingedly connected to the two gantry frames. The hydraulic jack is used to maintain the two gantry frames at a specific angle. The two gantry frames are set between the support plates on both sides to support the support plates on both sides. The opening and closing degree of the two gantry frames is controlled by the hydraulic jack. When the opening and closing angle of the two gantry frames decreases, a supporting force is generated on the support plates on both sides, realizing rapid tightening. When the opening and closing angle β between the two gantry frames becomes larger, the supporting force on the support plates on both sides is cancelled, realizing rapid dismantling. Another advantage of this technology is that the force direction of the hydraulic jack and the support direction are perpendicular to each other. A small hydraulic jack can be used to control the opening and closing of the two gantry frames, and the hydraulic jack does not directly participate in the reaction support of the support plate, which reduces the requirements for the hydraulic jack.

[0028] Furthermore, the columns in the two gantry frames can be square columns or round columns. Alternatively, one column can be a square column and the other a round column, wherein the square column has a larger contact area and the round column has better sliding performance. Under the action of the hydraulic jack, one of the columns of the two gantry frames has a sliding effect.

[0029] After the implementation of this technology, the reaction force of the support plate 10 directly acts on the gantry frame, which is the main force-bearing place. Since the gantry frame is a pure steel structure, it has better mechanical properties.

[0030] Further, refer to Figure 4 As an improvement, a triangular auxiliary frame 24 is welded on the outside of the gantry frame column. The triangular auxiliary frame has an inclined surface, which supports the support plate in the inclined state. Figure 3 The difference between the two solutions is that Figure 3 It is a kind of vertical support at a vertical angle. Figure 4 For supporting inclined surfaces with a slope, these two embodiments further illustrate that the present technology has a wide range of applicable scenarios.

[0031] This technology can be installed quickly. Specifically, the gantry frame, jack and steel pin are designed as an integrated whole and can be hoisted as a whole. After hoisting into place, force is applied to the jack to carry out quick installation.

[0032] The hydraulic jack in the present technology can be a manual simple jack or a special hydraulic jack equipped with a hydraulic system, which has better flexibility.

[0033] The gantry frame columns and the support plates in this technology form multi-point abutment fit, which has better contact performance and makes the adjustment process more convenient.

[0034] The construction process of this embodiment is as follows:

[0035] Step 1: Use excavation machinery to dig trenches at the construction site to form construction trenches, and perform earthwork operations on both sides of the construction trench to form water interception channels and other protections.

[0036] Step 2: Use a lifting machine to lift the support plate. The support plates on both sides are lifted synchronously. Finally, the support unit composed of the gantry frame is lifted as a whole, so that the two sides of the support unit are close to the support plate. Then, the support unit is placed in an appropriate position, and the hydraulic jack is applied synchronously to change the angle between the gantry frames, and gradually tightened on the support plates 10 on both sides. In this process, the hydraulic value of the hydraulic jack is observed. When the numerical load of the hydraulic jack reaches the design value, the hydraulic jack is locked to complete the support of one support unit. Then, the second support unit is used to support the next section of the support plate. According to the length of the support plate, a third support unit can be set. In theory, at least one support unit is set at each end of a pair of support plates, and a third support unit can be added if necessary.

[0037] After the implementation of this technology, the beams of multiple supporting units are located at the top, reserving sufficient construction space for the pipeline corridor construction, making the construction process very convenient and improving the construction speed.

[0038] Step three, use the integrated pipeline corridor in the construction trench after support. The integrated pipeline corridor 01 can be formed by cast-in-place reinforced concrete construction, or it can be prefabricated pipeline corridor for assembly construction, both of which are within the scope of application of this technology, that is, this support technology has a better scope of use.

[0039] Step 4: dismantle and backfill the support unit. Release the hydraulic jack in the support unit to create a gap between the gantry frame and the support plate. Move the support unit and the support plate apart and backfill the subsequent soil.

[0040] The dismantled support units and supporting plates can be reused after being cleaned, sanitized and maintained, thus reducing construction costs.

[0041] The implementation of this technology makes the support structure simpler and more efficient, and the hydraulic jack does not directly participate in bearing the lateral support force, so that the stability of the support structure is improved.

[0042] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements to the present invention by relevant technical personnel in the field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. The construction support structure of the integrated pipe gallery includes a support plate and a plurality of support units, wherein the plurality of support units are arranged at intervals and form multi-point support for the support plate, and is characterized in that: The support unit is composed of a gantry frame, a steel pin, and a hydraulic jack, wherein each gantry frame includes columns on both sides and a crossbeam connecting the two columns in the middle, and a steel pin is arranged at the center position of the crossbeam. Two identical gantry frames are arranged in pairs and are hingedly connected under the connection action of the steel pin, and a hydraulic jack is arranged between the two gantry frames, and the hydraulic jack adjusts the opening and closing angles of the two gantry frames.

2. The comprehensive pipe gallery construction support structure according to claim 1 is characterized in that: The outer side of the column is a triangular auxiliary frame, and the outer side of the auxiliary frame is in contact with the supporting plate.

3. The comprehensive pipe gallery construction support structure according to claim 1 is characterized in that: The gantry frame is in contact with the supporting plates on both sides.

4. The comprehensive pipe gallery construction support structure according to claim 1 is characterized in that: The steel sections used in the gantry frame are round steel pipes, rectangular steel pipes or I-beams.

5. The comprehensive pipe gallery construction support structure according to claim 1 is characterized in that: The support plate is a corrugated plate or a rib plate with a concave-convex structure, and the prismatic reinforcement ribs of the corrugated plate or the rib plate are arranged along the length direction of the support plate.

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