CN218346254U - Underground comprehensive pipe gallery is strutted to deep basal pit differentiation - Google Patents
Underground comprehensive pipe gallery is strutted to deep basal pit differentiation Download PDFInfo
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- CN218346254U CN218346254U CN202222647671.XU CN202222647671U CN218346254U CN 218346254 U CN218346254 U CN 218346254U CN 202222647671 U CN202222647671 U CN 202222647671U CN 218346254 U CN218346254 U CN 218346254U
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Abstract
The utility model provides an underground utility tunnel is strutted in deep basal pit differentiation, includes subway line region (1), its characterized in that: the subway line area is characterized in that a long strip-shaped foundation pit (2) crossing the line is arranged right above a subway line area (1), cement stirring piles (2) distributed in rows are arranged on two sides of an excavation area of the deep foundation pit (2) respectively, filling piles distributed in rows are arranged on two sides of a non-excavation area of the deep foundation pit (2) respectively, net hanging concrete spraying side walls (4) are arranged on inner side surfaces of the cement stirring piles (3) and the filling piles, a stirring pile reinforcing body (5) is arranged at the bottom of the foundation pit (2) and is located on the subway line area (1) after a sufficient safety distance is reserved, a pipe gallery cabin section (7) is continuously installed on the inner portion of the foundation pit (2) and the upper surface of the stirring pile reinforcing body (5).
Description
Technical Field
The utility model relates to an underground utility tunnel especially relates to an underground utility tunnel is strutted to deep basal pit differentiation, belongs to underground municipal works technical field.
Background
Along with the development in city, more and more cities begin to carry out utility tunnel's construction in recent years, utility tunnel can install power cable, communication cable, gas pipeline, water supply pipe etc. in order in the piping lane under-deck, and the maintenance of the cable of being convenient for and pipeline have effectively avoided burying the excavation that the mode need relapse and have backfilled traditionally, and the comprehensive benefits is showing. Meanwhile, urban underground rail transit is also rapidly developed, subway lines in construction and operation are continuously increased and are more and more dense, underground traffic networks are gradually formed, and it is very important to ensure the stability of the soil body of the subway lines and the safety of the subway lines, so that the construction of some urban underground comprehensive pipe galleries cannot bypass the subway lines, the construction problem that the underground comprehensive pipe galleries cross the subway lines is obvious, and the urban underground comprehensive pipe gallery has become one of important technical obstacles restricting the construction of the underground comprehensive pipe galleries.
If the underground comprehensive pipe gallery crossing the subway line is constructed by adopting a traditional common construction method, the stability of the soil body of the subway line and the safety of the subway line cannot be ensured, particularly for the construction of the underground comprehensive pipe gallery with a deep foundation pit, the construction difficulty is multiplied, and the traditional underground comprehensive pipe gallery structure has great potential safety hazard. Simultaneously, the slight vibrations that bring in the operation in-process of subway also can cause adverse effect to traditional ordinary utility tunnel. The construction difficult problem of the utility tunnel who stridees across subway line that can not solve always lacks a construction convenience, and construction safety is good, and the deep basal pit utility tunnel that can guarantee subway line safety and stability simultaneously again solves above-mentioned technical problem.
Disclosure of Invention
The utility model provides a purpose is to crossing over the safety of the stability of the subway line soil body and subway line to the ordinary utility tunnel of tradition, the construction degree of difficulty is great, there is the potential safety hazard, the high defect of construction cost is with not enough, a construction convenience is provided, construction safety is good, not only can guarantee the stability of subway line soil body and the safety of subway line, but also adopt the differentiation mode of strutting to also can save construction cost, the utility tunnel is strutted in the differentiation of deep basal pit that overall stability is good.
In order to achieve the purpose, the technical solution of the application is as follows: the utility model provides an underground pipe gallery is strutted in deep basal pit differentiation, including subway line region, be provided with the rectangular shape deep basal pit of strideing over the circuit directly over the subway line region, deep basal pit excavation district's both sides are provided with the cement mixing pile of row distribution respectively, deep basal pit non-excavation district's both sides are provided with the bored concrete pile of row distribution respectively, be provided with on the medial surface of cement mixing pile and bored concrete pile and hang net and spout the concrete lateral wall, the top of cement mixing pile and bored concrete pile is provided with the crown beam, the bottom of deep basal pit just is located and is provided with the mixing pile reinforcement body behind the regional sufficient safe distance of subway line, the inside of foundation pit just is located the upper surface that the mixing pile reinforcement body installs pipe gallery cabin section in succession, pipe gallery cabin section connection seal forms hollow underground pipe gallery.
Furthermore, hot-rolled H-shaped steel is inserted into the cement mixing piles, and horizontal steel supports are arranged between the cement mixing piles which are opposite to the upper portion of the foundation pit.
Furthermore, a drainage ditch is arranged on the ground outside the cement mixing pile and the cast-in-place pile.
Further, a felt isolation layer is arranged on the net hanging concrete spraying side wall above the stirring pile reinforcing body, or the net hanging concrete spraying side wall above the stirring pile reinforcing body and the upper surface of the stirring pile reinforcing body are respectively provided with the felt isolation layer, and the pipe gallery cabin section is arranged on the outer surface of the felt isolation layer.
Furthermore, the mixing pile reinforcing body is made of concrete through mixing, and the vertical thickness of the mixing pile reinforcing body is not less than 6 m.
Further, the pipe gallery cabin section comprises a comprehensive cabin and a high-voltage power cabin, the comprehensive cabin and the high-voltage power cabin are independently arranged, and vertical separation is arranged between the comprehensive cabin and the high-voltage power cabin.
The beneficial effect of this application is:
1. this application has adopted cement mixing stake and hanging net to spout the structural style of concrete lateral wall in deep basal pit's both sides to be provided with on the top of mud mixing stake and guan liang, make the fixed whole that forms of mud mixing stake in a bank, the subway line's is strideed across in the bottom of deep basal pit position simultaneously is provided with the mixing stake and adds the solid, and has stayed sufficient safe distance.
2. Differential supporting has been carried out in excavation district and non-excavation district to this application, and the both sides in deep basal pit excavation district set up the cement mixing pile respectively, and the both sides in deep basal pit non-excavation district set up the bored concrete pile respectively, and the mode of adopting this kind of cement mixing pile and bored concrete pile differentiation to strut can save construction cost by the at utmost to shorten construction cycle.
3. This application construction convenience, construction security is good, not only can guarantee the stability of the subway line soil body and the safety of subway line, but also can avoid the slight vibrations that the subway operation in-process brought to cause adverse effect to the ordinary utility tunnel of tradition, and overall stability is good, convenient to popularize and apply.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
In the figure: the method comprises the following steps of a subway line area 1, a deep foundation pit 2, cement mixing piles 3, a net hanging concrete spraying side wall 4, mixing pile reinforcing bodies 5, a felt isolation layer 6, a pipe gallery cabin section 7, a comprehensive cabin 8, a high-voltage power cabin 9, horizontal steel supports 10, a crown beam 11 and a drainage ditch 12.
Detailed Description
The present application is described in further detail below with reference to the following description of the figures and the detailed description.
Referring to fig. 1, utility tunnel is strutted to deep basal pit differentiation of this application, including regional 1 of subway line, its characterized in that: be provided with rectangular shape deep basal pit 2 of strideing across the circuit directly over regional 1 of subway line, the both sides in 2 excavation districts of deep basal pit are provided with the cement mixing pile 3 that the row distributes respectively, the both sides in 2 non-excavation districts of deep basal pit are provided with the bored concrete pile that the row distributes respectively, be provided with on the medial surface of cement mixing pile 3 and bored concrete pile and hang net and spout concrete lateral wall 4, the top of cement mixing pile 3 and bored concrete pile is provided with guan liang 11, the bottom of deep basal pit 2 just is located and is provided with mixing pile reinforcement body 5 behind the sufficient safe distance of remaining on regional 1 of subway line, the inside of deep basal pit 2 just is located the upper surface of mixing pile reinforcement body 5 and installs piping lane cabin section 7 in succession, piping lane cabin section 7 is connected sealedly and is formed hollow underground utility tunnel.
Hot-rolled H-shaped steel is inserted into the cement mixing piles 3, and horizontal steel supports 10 are arranged between the cement mixing piles 3 which are opposite to the upper part of the foundation pit 2.
And a drainage ditch 12 is arranged on the ground outside the cement mixing pile 3 and the cast-in-place pile.
The concrete spraying hanging net side wall 4 above the mixing pile reinforcing body 5 is provided with a felt isolation layer 6, or the concrete spraying hanging net side wall 4 above the mixing pile reinforcing body 5 and the upper surface of the mixing pile reinforcing body 5 are respectively provided with the felt isolation layer 6, and the pipe gallery cabin section 7 is installed on the outer surface of the felt isolation layer 6.
The mixing pile reinforcing body 5 is made of concrete through mixing, and the vertical thickness of the mixing pile reinforcing body 5 is not less than 6 m.
The pipe gallery cabin section 7 comprises an integrated cabin 8 and a high-voltage power cabin 9, the integrated cabin 8 and the high-voltage power cabin 9 are independently arranged, and vertical separation is arranged between the integrated cabin 8 and the high-voltage power cabin 9.
Referring to fig. 1, the utility model is different from the traditional common underground comprehensive pipe rack, because the subway line needs to be spanned safely and reliably, the foundation at the bottom of the deep foundation pit and the pipe rack is upgraded and improved on the basis of the prior art, and a new structural form is adopted. The method comprises the following specific steps: the utility model provides a deep basal pit 2 excavates directly over subway line region 1 to subway line is strideed across to rectangular shape, has stayed sufficient safe distance between the bottom of deep basal pit 2 and the upper end of subway line region 1 simultaneously, and its clear distance is not less than 2.3 meters.
This application has carried out the differentiation to excavation district and non-excavation district and has strutted, and the both sides in deep basal pit 2 excavation districts are provided with the cement stirring stake 3 that the in bank distributes respectively along utility tunnel's direction, also can set up underground continuous wall, and the inside of cement stirring stake 3 inserts the shaped steel of the H type of hot rolling. The cast-in-place piles distributed in rows are arranged on two sides of the non-excavation area of the deep foundation pit 2 respectively, and the construction cost can be saved to the greatest extent by adopting the mode of differential support of the cement mixing piles 3 and the cast-in-place piles, and the construction period is shortened.
Be provided with the hanging net and spout concrete lateral wall 4 on the medial surface of cement mixing pile 3 and bored concrete pile, hanging net spouts concrete lateral wall 4 not only can guarantee the roughness and the wholeness of inside wall, but also has certain fender soil and water-proof effects. The top end of the mud mixing pile 3 or the underground continuous wall positioned on the same side is provided with a crown beam 11, the crown beam 11 is horizontally arranged and can be fixed from the top end, so that the mud mixing piles 3 in rows are fixed to form a whole. In addition, the drainage ditch 12 is arranged on the ground outside the cement mixing pile 3 and the cast-in-place pile, so that the drainage of accumulated water on the ground surface is facilitated, and the rainwater on the surrounding ground surface is prevented from flowing into the deep foundation pit 2 during construction.
The bottom of deep basal pit 2 just is located and is provided with mixing pile reinforcement body 5 after keeping sufficient safe distance on subway line region 1, and mixing pile reinforcement body 5 adopts the concrete mixing to make, and mixing pile reinforcement body 5's vertical thickness is not less than 6 meters, and mixing pile reinforcement body 5 is an integral structure in the region of strideing across the subway line. Even shield excavation and construction can not cause the influence in subway line region 1, in addition, the slight vibrations brought in the operation of subway also can not cause adverse effect to utility tunnel. And a horizontal steel support 10 is arranged between the cement mixing piles 3 or the underground continuous walls, which are directly opposite to the upper part of the foundation pit 2, and the stability of the upper part of the deep foundation pit 2 is improved through the horizontal steel support 10.
The net hanging concrete spraying side wall 4 above the stirring pile reinforcing body 5 is provided with the felt isolation layer 6, the net hanging concrete spraying side wall 4 above the stirring pile reinforcing body 5 and the upper surface of the stirring pile reinforcing body 5 can be respectively provided with the felt isolation layer 6, the felt isolation layer 6 has certain damp-proof effect, and meanwhile, certain sliding effect is achieved between the two structural layers to adapt to the change of thermal expansion and cold contraction. The inside of foundation ditch 2 and the upper surface that is located stirring stake reinforcement 5 install pipe gallery cabin section 7 in succession to pipe gallery cabin section 7 is installed on the surface of linoleum isolation layer 6. The pipe gallery cabin section 7 comprises an integrated cabin 8 and a high-voltage power cabin 9, the integrated cabin 8 and the high-voltage power cabin 9 are independently arranged, vertical separation is arranged between the integrated cabin 8 and the high-voltage power cabin 9, and cables and pipelines can be orderly paved in the integrated cabin 8 and the high-voltage power cabin 9.
The foregoing is a detailed description of the present application with reference to specific embodiments, and the present application is not limited to these embodiments, and it will be apparent to those skilled in the art that various simple substitutions, modifications and changes may be made without departing from the inventive concept of the present application, and all such simple substitutions, modifications and changes should be considered as falling within the scope of the present application.
Claims (6)
1. The utility model provides a utility tunnel is strutted to deep basal pit differentiation, includes subway line region (1), its characterized in that: the underground pipe gallery is characterized in that a long-strip-shaped deep foundation pit (2) crossing the line is arranged right above a subway line area (1), cement stirring piles (3) distributed in rows are arranged on two sides of an excavated area of the deep foundation pit (2) respectively, filling piles distributed in rows are arranged on two sides of a non-excavated area of the deep foundation pit (2) respectively, net hanging and concrete spraying side walls (4) are arranged on inner side surfaces of the cement stirring piles (3) and the filling piles, top beams (11) are arranged at the tops of the cement stirring piles (3) and the filling piles, a stirring pile reinforcing body (5) is arranged at the bottom of the deep foundation pit (2) and on the subway line area (1) after a sufficient safety distance is reserved, a pipe gallery cabin section (7) is continuously installed inside the deep foundation pit (2) and on the upper surface of the stirring pile reinforcing body (5), and the pipe gallery cabin section (7) is connected and sealed to form a hollow underground comprehensive pipe gallery.
2. The deep foundation pit differential support underground comprehensive pipe gallery according to claim 1, characterized in that: hot-rolled H-shaped steel is inserted into the cement mixing piles (3), and horizontal steel supports (10) are arranged between the cement mixing piles (3) which are opposite to the upper parts of the deep foundation pits (2).
3. The deep foundation pit differential support underground comprehensive pipe gallery according to claim 1, characterized in that: and a drainage ditch (12) is arranged on the ground outside the cement mixing pile (3) and the cast-in-place pile.
4. The deep foundation pit differential support underground comprehensive pipe gallery according to claim 1, characterized in that: the concrete mixing pile is characterized in that a felt isolation layer (6) is arranged on the net hanging concrete spraying side wall (4) above the mixing pile reinforcing body (5), or the net hanging concrete spraying side wall (4) above the mixing pile reinforcing body (5) and the upper surface of the mixing pile reinforcing body (5) are respectively provided with the felt isolation layer (6), and a pipe gallery cabin section (7) is installed on the outer surface of the felt isolation layer (6).
5. The deep foundation pit differential support underground comprehensive pipe gallery according to claim 1, characterized in that: the mixing pile reinforcing body (5) is made of concrete through mixing, and the vertical thickness of the mixing pile reinforcing body (5) is not less than 6 m.
6. The deep foundation pit differential support underground comprehensive pipe gallery according to claim 1, characterized in that: the pipe gallery cabin section (7) comprises a comprehensive cabin (8) and a high-voltage power cabin (9), the comprehensive cabin (8) and the high-voltage power cabin (9) are independently arranged, and vertical separation is arranged between the comprehensive cabin (8) and the high-voltage power cabin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222647671.XU CN218346254U (en) | 2022-10-09 | 2022-10-09 | Underground comprehensive pipe gallery is strutted to deep basal pit differentiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222647671.XU CN218346254U (en) | 2022-10-09 | 2022-10-09 | Underground comprehensive pipe gallery is strutted to deep basal pit differentiation |
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| Publication Number | Publication Date |
|---|---|
| CN218346254U true CN218346254U (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222647671.XU Active CN218346254U (en) | 2022-10-09 | 2022-10-09 | Underground comprehensive pipe gallery is strutted to deep basal pit differentiation |
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| CN (1) | CN218346254U (en) |
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2022
- 2022-10-09 CN CN202222647671.XU patent/CN218346254U/en active Active
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