CN210217743U - Steel structure sleeve for trenchless construction - Google Patents
Steel structure sleeve for trenchless construction Download PDFInfo
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- CN210217743U CN210217743U CN201921283291.4U CN201921283291U CN210217743U CN 210217743 U CN210217743 U CN 210217743U CN 201921283291 U CN201921283291 U CN 201921283291U CN 210217743 U CN210217743 U CN 210217743U
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Abstract
The utility model discloses a steel structure sleeve pipe that non-excavation construction was used, including the symmetry and have the first semicircle body, the lower semicircle body of isostructure, equal fixed mounting has the slip casting hole base on first semicircle body, the lower semicircle body, first semicircle body both sides fixedly connected with angle steel B, lower semicircle body both sides fixedly connected with angle steel B assorted angle steel A, angle steel A with angle steel B passes through connecting bolt fixed. The utility model discloses a set up the mode of slip casting hole base on upper and lower semicircular body, only need when the construction with this slip casting hole base and slip casting pipe connection, can pour into cement mortar into the upper and lower semicircular body outside, realize the slip casting anchor of this structure sheathed tube, solved prior art and can't slip casting in the work progress, can only accomplish the technical problem of back slip casting again after the full-line installation, and then realize in time filling up the space, improve the factor of safety in the work progress, wide application prospect has.
Description
Technical Field
The utility model relates to a construction technical field specifically is a steel construction sleeve pipe that non-excavation construction was used.
Background
The non-excavation construction is a new construction technology for laying, replacing and repairing various underground pipelines by utilizing various rock-soil drilling equipment and technical means under the condition of excavating on a very small part of the earth surface (generally indicating small-area excavation at an inlet and an outlet) in the modes of guiding, directional drilling and the like, does not obstruct traffic, does not damage greenbelts and vegetation, does not influence the normal life and work order of shops, hospitals, schools and residents, solves the interference of the traditional excavation construction on the life of the residents, and can effectively reduce the damage and adverse effect on the traffic, environment and the foundation of surrounding buildings.
The casing pipe is common equipment in non-excavation construction, in the non-excavation construction, in order to prevent the later collapse of a construction position, the inner and outer gaps of the casing pipe are usually subjected to grouting filling and anchoring, however, the existing casing pipe mostly adopts a PE pipe, although the cost is low, the strength and the service life are short, and the stability is not high; in addition, the existing casing pipe is mostly not provided with a grouting base, grouting can not be performed in the construction process, grouting can only be performed after the whole-line installation is finished, namely grouting is performed by hanging 1 grouting pipe to fill a gap, the grouting effect is completely different from grouting in the construction process, and due to the fact that the gap cannot be filled in time in the grouting mode, collapse cannot be guaranteed, the serious potential safety hazard exists for constructors, pipelines and roads, grouting uniformity and compactness are difficult to guarantee, the slurry emptying phenomenon easily occurs, and the potential safety hazard is buried for collapse of construction areas.
SUMMERY OF THE UTILITY MODEL
To above technical problem, the utility model aims to solve the technical problem that a can realize slip casting in the work progress is provided, can effectively improve slip casting homogeneity, increase closely knit degree, and then prevent empty thick liquid phenomenon and can show the steel construction sleeve pipe of non-excavation construction usefulness that improves slip casting efficiency.
For solving the technical problem, a steel construction sleeve pipe that non-excavation construction used, including the symmetry and have the first semicircle body, the second semicircle body of isostructure, equal fixed mounting has the slip casting hole base on first semicircle body, the second semicircle body, first semicircle body both sides fixedly connected with angle steel B, lower semicircle body both sides fixedly connected with angle steel B assorted angle steel A, angle steel A with angle steel B passes through connecting bolt fixed.
Furthermore, the upper semicircular body and the lower semicircular body are both composed of an outer layer supporting steel plate and an inner layer supporting steel plate which are coaxially arranged.
Further, the outer layer supporting steel plate and the inner layer supporting steel plate which form the upper semicircular body are fixedly connected through the angle steel B, and the outer layer supporting steel plate and the inner layer supporting steel plate which form the lower semicircular body are fixedly connected through the angle steel A.
Further, the grouting hole base comprises an outer grouting hole base and an inner grouting hole base, the outer grouting hole base and the inner grouting hole base are fixedly mounted on the inner supporting steel plate, the outer grouting hole base 8 extends out of the outer supporting steel plate from inside to outside, and the inner grouting hole base 9 extends into the space between the outer supporting steel plate and the inner supporting steel plate from inside to outside.
Furthermore, a plurality of inner support rectangular pipes A and a plurality of inner support rectangular pipes B are fixedly arranged between the outer layer support steel plate and the inner layer support steel plate, the inner support rectangular pipes A are circumferentially distributed on the outer surface of the inner layer support steel plate, and the inner support rectangular pipes B are axially distributed on the outer surface of the inner layer support steel plate.
Further, the lower surfaces of the inner supporting rectangular pipe A and the inner supporting rectangular pipe B are fixedly connected with the inner supporting steel plate.
Furthermore, the side walls of the inner support vertical rectangular pipe A and the inner support vertical rectangular pipe B are respectively provided with a plurality of grouting holes A and grouting holes B.
Compared with the prior art, the utility model has the following advantage:
(1) the utility model discloses a set up the mode of slip casting hole base on upper and lower semicircular body, only need when the construction with this slip casting hole base and slip casting pipe connection, can pour into cement mortar into the upper and lower semicircular body outside, realize the slip casting anchor of this structure sheathed tube, solved prior art and can't slip casting in the work progress, can only accomplish the technical problem of back slip casting again at the full-line installation, and then realized filling up the space in time, the factor of safety in the work progress has been improved, wide application prospect has.
(2) The utility model discloses a steel sheet is strutted to the inlayer, the combination of outer steel sheet of strutting forms upper and lower semicircular body, is showing and is improving steel construction sheathed tube intensity, and then is showing and has strengthened steel construction sheathed tube resistance to deformation coefficient.
(3) The utility model discloses an install outer slip casting hole base and inlayer slip casting hole base on the steel sheet is strutted to the inlayer, wherein the export of outer slip casting hole base is outside stretching out the outer steel sheet of strutting by oneself, the export of inlayer slip casting hole base then is in between inlayer strut steel sheet and the outer steel sheet of strutting, be favorable to realizing in the work progress between steel sheet and the outer steel sheet of strutting to the inlayer, the slip casting anchor between steel construction sleeve and the outside soil layer, the slip casting homogeneity and the closely knit degree of anchor that have showing and have improved cement mortar, and then steel construction sleeve's solidness and compressive coefficient have been improved.
(4) The utility model arranges the inner support vertical rectangular tubes which are evenly and axially and circumferentially staggered between the outer layer support steel plate and the inner layer support steel plate, thereby improving the compressive strength of the steel structure sleeve; and the inner supporting vertical rectangular pipe is provided with grouting holes, the direction of the grouting holes is consistent with the flowing direction of mortar, the mortar can effectively and conveniently flow into the inner supporting vertical rectangular pipe, and the grouting anchoring strength is further effectively improved.
Drawings
Fig. 1 is a radial cross-sectional view of the present invention.
Fig. 2 is a cross-sectional view taken along plane a-a of fig. 1.
Fig. 3 is a cross-sectional view taken along plane B-B of fig. 1.
Fig. 4 is the utility model discloses the distribution schematic diagram of steel sheet surface is strutted at the inlayer in interior support rectangular pipe A, interior support rectangular pipe B.
Fig. 5 is a schematic view of the grouting anchoring process of the present invention.
Fig. 6 is a cross-sectional view of the utility model after grouting and anchoring.
In the figure: 1. outer layer supporting steel plates 2, inner supporting vertical moment pipes A and 3, grouting holes A and 4, inner layer supporting steel plates 5, upper semicircular bodies 6, connecting bolts 7, lower semicircular bodies 8, outer layer grouting hole bases 9, inner layer grouting hole bases 10, angle steel A and 11, angle steel B and 12, inner supporting vertical moment pipes B and 13, grouting holes B and 14, grouting pipelines A and 15, grouting pipelines B and 16, baffles A and 17, baffles B and 18 and cement mortar.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, 2, 3 and 4, the upper semicircular body 5 and the lower semicircular body 7 are symmetrical and have the same structure, grouting hole bases are fixedly mounted on the upper semicircular body 5 and the lower semicircular body 7, two sides of the upper semicircular body 5 are fixedly connected with angle steel B11, two sides of the lower semicircular body 7 are fixedly connected with angle steel A10 matched with angle steel B11, and the angle steel A10 and the angle steel B11 are fixed through connecting bolts 6.
In order to strengthen the strength of the steel structure casing, the upper semicircular body 5 and the lower semicircular body 7 are both composed of an outer layer supporting steel plate 1 and an inner layer supporting steel plate 4 which are coaxially arranged.
In order to ensure the connection stability between the outer-layer supporting steel plate 1 and the inner-layer supporting steel plate 4, the outer-layer supporting steel plate 1 and the inner-layer supporting steel plate 4 which form the upper semicircular body 5 are fixedly connected through angle steel B11, and the outer-layer supporting steel plate 1 and the inner-layer supporting steel plate 4 which form the lower semicircular body 7 are fixedly connected through angle steel A10.
In order to improve the grouting efficiency, the grouting hole base comprises an outer layer grouting hole base 8 and an inner layer grouting hole base 9, the outer layer grouting hole base 8 and the inner layer grouting hole base 9 are fixedly mounted on the inner layer supporting steel plate 4, the outer layer grouting hole base 8 extends out of the outer layer supporting steel plate 1 from inside to outside, and the inner layer grouting hole base 9 extends into an annular gap between the outer layer supporting steel plate 1 and the inner layer supporting steel plate 4 from inside to outside.
In order to improve the compressive strength of the steel structure casing, improve the grouting uniformity and increase the compactness of grouting anchoring, a plurality of inner supporting rectangular pipes A2 and inner supporting rectangular pipes B12 are fixedly arranged between the outer layer supporting steel plate 1 and the inner layer supporting steel plate 4, the inner supporting rectangular pipes A2 are circumferentially distributed along the outer surface of the inner layer supporting steel plate 4, and the inner supporting rectangular pipes B12 are axially distributed along the outer surface of the inner layer supporting steel plate 4.
In order to enhance the stability of the inner support rectangular pipe A2 and the inner support rectangular pipe B12, the lower surfaces of the inner support rectangular pipe A2 and the inner support rectangular pipe B12 are fixedly connected with the inner layer supporting steel plate 4.
In order to realize the grouting anchoring compactness in the inner support vertical moment tube A2 and the inner support vertical moment tube B12, the side walls of the inner support vertical moment tube A2 and the inner support vertical moment tube B12 are respectively provided with a plurality of grouting holes A3 and grouting holes B13.
The utility model discloses a concrete working process as follows:
assembling a sleeve before construction: welding an inner support rectangular pipe A2 and an inner support rectangular pipe B12 at corresponding positions on an inner support steel plate 4 according to the drawing shown in figure 4, fixedly installing an outer layer grouting hole base 8 and an inner layer grouting hole base 9 in a through hole which is pre-formed in the inner support steel plate 4, buckling an outer layer support steel plate 1 on the inner support rectangular pipe A2 and the inner support rectangular pipe B12, ensuring that the outer layer grouting hole base 8 penetrates through the pre-formed through hole in the outer layer support steel plate 1 and extends out of the outer side of the outer layer support steel plate 1, and then firmly welding the edge of the outer layer support steel plate 1 with the contact part of the upper surfaces of the inner support rectangular pipe A2 and the inner support rectangular pipe B12 to form an upper semicircular body 5 and a lower semicircular body 7; angle B11 is then welded at both axial edges of the upper semi-circular body 5 and angle a10 is welded at both axial edges of the lower semi-circular body 7.
Preparing a route before construction: as shown in fig. 5, before work, the optimal construction position and construction route are measured and selected, then a work pit is vertically dug at the starting part of the construction route, and the periphery and the bottom of the work pit are reinforced, so that the reinforcing strength is ensured, and the work pit is prevented from collapsing; constructors carry construction equipment to enter a working pit, horizontal manual hole digging is carried out along a construction route, and steel structure sleeves are installed after 50cm of horizontal forward manual hole digging is carried out.
The sleeve installation during construction: when the steel pipe is installed, the lower semicircular body 7 welded with angle steel A10 in advance is placed in a hole, after the semicircular diameter section is ensured to be horizontal, the upper semicircular body 5 welded with angle steel B11 in advance is placed on the lower semicircular body 7, after the angle steel A10 and the angle steel B11 are confirmed to be in good contact and bolt holes are aligned, at least 2 connecting bolts 6 (M8 bolts) are adopted to fasten one side, and after the installation is finished, 1 round steel structure sleeve pipe with good whole body (50 cm) is formed.
Grouting and anchoring during construction: in order to ensure the outer wall and the inner wall of the hole of the steel sleeve to be compact, 1-time grouting is carried out for every 1 steel sleeve (50 cm) installed, and the gap at the back of the outer part of the steel sleeve is compactly filled, as shown in figure 5, a baffle B17 is firstly arranged at one end of the round steel sleeve, an outer grouting hole base 8 is communicated with a grouting pipeline A14, an inner grouting hole base 9 is communicated with a grouting pipeline B15, the grouting pipeline A14 and the grouting pipeline B15 are communicated with a grouting machine, at the moment, after a baffle A16 is arranged at the other end of the round steel sleeve, the grouting machine is started to inject C20 between the outer supporting steel plate 1 and the excavated hole, and between the inner supporting steel plate 4 and the outer supporting steel plate 1, cement mortar is gradually filled in the gap between the outer supporting steel plate 1 and the excavated hole, and between the inner supporting steel plate 4 and the outer supporting steel plate 1 along the arrow direction in figure, the inner support rectangular tube 2 is also filled, so that the grouting filling work is completed; after the grouting filling work is finished and cement mortar is cured, the baffle A16, the baffle B17, the grouting pipeline A14 and the grouting pipeline B15 are removed, and the grouting state shown in the figure 6 is achieved, namely the areas such as the outer side of the outer layer supporting steel plate 1, the space between the outer layer supporting steel plate 1 and the inner layer supporting steel plate 4, the inner support moment pipe A2 and the inner support moment pipe B12 are all filled with the cement mortar 18, and then 1 steel sleeve is completely grouted.
Mounting a full-line sleeve: continuously and manually excavating forwards for 50cm, repeating the work, and connecting the adjacent 2 steel structure sleeve sections in a full circle by using M8 bolts until the installation of the full-line sleeve is completed; and finally, mounting, replacing and maintaining construction operations such as electric power and communication pipelines are carried out in the formed circular steel structure sleeve.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will understand that modifications and equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of them shall fall within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a steel construction sleeve pipe that non-excavation construction used, includes the symmetry and has the last semicircle body (5), the lower semicircle body (7) of the same structure, its characterized in that: the upper semicircular body (5) and the lower semicircular body (7) are fixedly provided with grouting hole bases, two sides of the upper semicircular body (5) are fixedly connected with angle steel B (11), two sides of the lower semicircular body (7) are fixedly connected with angle steel A (10) matched with the angle steel B (11), and the angle steel A (10) is fixed with the angle steel B (11) through a connecting bolt (6).
2. The steel structure casing pipe for trenchless construction as claimed in claim 1, wherein: the upper semicircular body (5) and the lower semicircular body (7) are both composed of an outer layer supporting steel plate (1) and an inner layer supporting steel plate (4) which are coaxially arranged.
3. The steel structure casing pipe for trenchless construction as claimed in claim 2, wherein: the outer-layer supporting steel plate (1) and the inner-layer supporting steel plate (4) which form the upper semicircular body (5) are fixedly connected through the angle steel B (11), and the outer-layer supporting steel plate (1) and the inner-layer supporting steel plate (4) which form the lower semicircular body (7) are fixedly connected through the angle steel A (10).
4. The steel structure casing pipe for trenchless construction as claimed in claim 2, wherein: the grouting hole base comprises an outer grouting hole base (8) and an inner grouting hole base (9), the outer grouting hole base (8) and the inner grouting hole base (9) are fixedly mounted on the inner supporting steel plate (4), the outer grouting hole base (8) stretches out from the inside to the outside of the outer supporting steel plate (1), and the inner grouting hole base (9) stretches into from the inside to the outside of the outer supporting steel plate (1) and the inner supporting steel plate (4).
5. The steel structure casing pipe for trenchless construction as claimed in claim 2, wherein: the outer steel sheet (1) of strutting with the inlayer is strutted and is fixed between steel sheet (4) and is provided with a plurality of interior support rectangular pipes A (2), interior support rectangular pipe B (12), interior support rectangular pipe A (2) are followed steel sheet (4) surface circumference is strutted to the inlayer distributes, interior support rectangular pipe B (12) are followed steel sheet (4) surface axial distribution is strutted to the inlayer.
6. The steel structure casing pipe for trenchless construction as claimed in claim 5, wherein: the lower surfaces of the inner supporting rectangular pipe A (2) and the inner supporting rectangular pipe B (12) are fixedly connected with the inner layer supporting steel plate (4).
7. The steel structure casing pipe for trenchless construction as claimed in claim 5, wherein: and the side walls of the inner support vertical rectangular pipe A (2) and the inner support vertical rectangular pipe B (12) are respectively provided with a plurality of grouting holes A (3) and grouting holes B (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283291.4U CN210217743U (en) | 2019-08-09 | 2019-08-09 | Steel structure sleeve for trenchless construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283291.4U CN210217743U (en) | 2019-08-09 | 2019-08-09 | Steel structure sleeve for trenchless construction |
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| CN210217743U true CN210217743U (en) | 2020-03-31 |
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| CN201921283291.4U Active CN210217743U (en) | 2019-08-09 | 2019-08-09 | Steel structure sleeve for trenchless construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307001A (en) * | 2019-08-09 | 2019-10-08 | 文杰 | A kind of steel construction casing of non-excavating construction |
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2019
- 2019-08-09 CN CN201921283291.4U patent/CN210217743U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307001A (en) * | 2019-08-09 | 2019-10-08 | 文杰 | A kind of steel construction casing of non-excavating construction |
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