CN109914472B - Soft soil area assembled comprehensive pipe gallery and construction method thereof - Google Patents

Soft soil area assembled comprehensive pipe gallery and construction method thereof Download PDF

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Publication number
CN109914472B
CN109914472B CN201910166196.4A CN201910166196A CN109914472B CN 109914472 B CN109914472 B CN 109914472B CN 201910166196 A CN201910166196 A CN 201910166196A CN 109914472 B CN109914472 B CN 109914472B
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plate
pipe gallery
plates
upright
gallery
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CN109914472A (en
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丁选明
栾鲁宝
魏奇科
冯立
邓玮婷
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Chongqing University
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Chongqing University
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Abstract

The invention provides an assembled comprehensive pipe gallery in a soft soil area and a construction method thereof. The utility tunnel comprises a plurality of frame components which are arranged along the direction of the tunnel body at intervals, and a plurality of side plates, a bottom plate and a top plate. The construction method of the comprehensive pipe gallery comprises the steps of leveling a field, paying off, constructing stand columns, installing side plates, grouting connecting sections, installing cross beams, reinforcing foundation jet grouting piles, excavating soil bodies, casting a bottom plate in situ, installing a top plate, backfilling the upper portion and the like. The utility tunnel has certain integrity, shock resistance and impermeability. The installation process is simplified, the construction efficiency is improved, and the like, so that the method has remarkable effects and wide application prospect.

Description

Soft soil area assembled comprehensive pipe gallery and construction method thereof
Technical Field
The invention relates to the technical field of buildings, in particular to an assembly type comprehensive pipe gallery in a soft soil area and a construction method thereof.
Background
In recent years, along with the continuous and rapid development of national economy, the urban scale of China is rapidly expanded. The rapid urbanization leads to a great increase in urban population, and the demand for municipal pipelines such as power supply, water supply and drainage, heat supply, air supply and communication, which are the bearing foundation for the rapid development of cities, is also greatly increased. However, due to the limitations of the city's own conditions in the past, the load bearing capacity of municipal pipelines has experienced great challenge. The contradiction between the increasing demand of city rapid development on municipal pipeline bearing capacity and the speed and rationality of municipal pipeline development is increasingly prominent, and the contradiction becomes an important problem in the development process of cities at home and abroad and becomes a bottleneck of city expansion. The utility tunnel is used as an important measure for intensive management of underground space pipelines, and the problems can be effectively solved.
The underground comprehensive pipe gallery is a public tunnel which is used for laying municipal pipelines such as water supply, drainage, gas, heat, power, communication, radio and television and the like in a centralized manner in an urban underground space, synchronously matching auxiliary facilities such as fire fighting, lighting, ventilation, monitoring, alarming and the like, implementing unified planning, construction and management, and has the remarkable advantages of resource intensification, long service life, high safety performance, good environmental benefit and the like. In the prior art, the utility tunnel's construction mainly has: reinforced concrete cast-in-place formula piping lane and prefabricated reinforced concrete assembled piping lane. The cast-in-place pipe gallery construction site is high in requirement, long in forming time, complex in process steps and high in engineering cost; prefabricated piping lane component simple structure need not great place, and the installation is under construction conveniently, and the engineering volume is little, and the installation effectiveness is high, nevertheless in order to reach intensity and rigidity requirement, the reinforcing bar quantity is many, whole weight is big, and the transportation degree of difficulty is big, and is with high costs, and the component suffers the damage easily. Usually when utility tunnel is under construction, all need use the excavator to carry out foundation ditch excavation to design elevation to carry out individual support to the excavation foundation ditch, then carry out cast-in-place of piping lane or installation, backfill at last and form underground space structure. The support after excavation of the foundation pit is carried out in the process of cast-in-place or installation of the pipe gallery, the site requirement is increased, the excavated foundation pit is separately supported, the material consumption is increased, the engineering quantity is increased, and the construction period is prolonged. For the soft soil foundation, because the bearing capacity is insufficient, the soft soil foundation needs to be reinforced in advance.
Disclosure of Invention
The invention aims to provide an assembly type comprehensive pipe gallery in a soft soil area and a construction method thereof, and aims to solve the problems in the prior art.
The technical scheme adopted for achieving the purpose of the invention is that the construction method of the assembled comprehensive pipe gallery in the soft soil area comprises the following steps:
1) and leveling the field according to the construction requirement.
2) Paying off the ground surface according to design requirements, and marking the position of the upright post.
3) And filling cork stoppers in the vertical strip grooves of the upright posts. And (4) implanting the upright columns into the foundation according to the designed depth. Wherein the column includes a spatial tube lane portion and a bearing layer portion. The spatial tube lane portion is located above the support layer portion. The space pipe gallery part and the supporting layer part are integrated. The bearing layer is partially inserted into the soft soil foundation. The space pipe gallery part is integrally a rectangular column. The four sidewalls of this rectangular cylinder are labeled first, second, third, and fourth sidewalls in that order. The planes of the first side wall and the third side wall are parallel to the trend of the gallery body, and the planes of the second side wall and the fourth side wall are perpendicular to the trend of the gallery body. A cuboid is removed from the first side wall, and a cross beam notch is formed. One outlet of the cross beam notch is arranged on the top surface of the upright post. And the upper part of the third side wall is provided with an axillary corner. The upper surface of the axillary corner is higher than the top surface of the upright post. And vertical strip grooves which are wedged with the side plates are arranged on the second side wall and the fourth side wall. And grouting holes are vertically arranged on the groove walls of the vertical strip grooves. The grouting holes extend from the top surface to the bottom surface of the spatial pipe gallery portion. And grouting pipes are embedded in the grouting holes. The columns are arranged in two rows. The upright columns in each row are arranged at intervals along the trend of the gallery body. In the two rows of upright posts, the third side walls of the two opposite upright posts deviate, and the first side walls are opposite.
4) And a side plate is embedded between two adjacent upright columns in the same row of upright columns. Wherein the lateral plates extrude the cork filled in the vertical bar groove.
5) And injecting expanded cement mortar into the grouting pipe pre-embedded in the grouting hole. The upright posts and the corresponding side plates are fixedly connected into a whole.
6) And smearing expanded cement mortar in the gap of the cross beam. And two ends of the cross beam are respectively embedded in the cross beam notches of two opposite upright columns in the two rows of upright columns. The expansion cement mortar in the gap of the beam fixedly connects the beam and the two corresponding upright posts into a whole.
7) And excavating the soil body in the designed pipe gallery foundation pit.
8) And pouring a bottom plate at the designed elevation position of the bottom plate of the pipe gallery. The bottom plate, the upright posts and the side plates are poured into a whole. The bottom plate and the bearing layer part of the upright column jointly form a pile plate structure.
9) And a top plate is erected above the cross beam.
10) Backfilling the excavated soil body in the step 7) above the top plate to form an underground pipe gallery space.
Further, when the foundation is a soft foundation, after the step 6), the relevant step of reinforcing the base by using the jet grouting pile is also carried out.
Further, in the step 3), the upright post is implanted into the foundation by adopting a hammering method or a static pile pressing method.
Further, step 9) is followed by the step of injecting an ethylene oxide resin into the connecting seams between the top plate and the columns, the cross beams and the side plates.
The invention also discloses the soft soil area fabricated comprehensive pipe gallery prepared by the construction method, which comprises a plurality of frame components arranged at intervals along the gallery body, a plurality of side plates, a bottom plate and a top plate.
The frame component comprises two upright posts and a cross beam. The cross beam is connected between the two upright posts.
The column includes a spatial tube lane portion and a bearing layer portion. The bearing layer is partially inserted into the soft soil foundation. The spatial tube lane portion is located above the support layer portion. The space pipe gallery part is integrally a rectangular column. The four sidewalls of this rectangular cylinder are labeled first, second, third, and fourth sidewalls in that order. The first side wall faces the interior of the pipe gallery, and the plane where the second side wall and the fourth side wall are located is perpendicular to the direction of the gallery body. And vertical strip grooves which are wedged with the side plates are arranged on the second side wall and the fourth side wall. And vertical grouting holes are formed in the wall of each vertical strip groove. The grouting holes extend from the top surface to the bottom surface of the spatial pipe gallery portion. And grouting pipes are embedded in the grouting holes.
Two side plates are arranged between two adjacent frame parts. And two ends of the side plate are respectively embedded into the vertical bar groove on the second side wall and the vertical bar groove on the fourth side wall of the corresponding two stand columns.
The bottom plate is a reinforced concrete plate. The bottom plate is disposed below the side plates. The bottom plate, the upright posts and the side plates are poured into a whole. The bottom plate and the bearing layer part jointly form a pile plate structure.
The top plate is arranged above the frame component in an overlapping mode.
Further, the lower portion of the support layer portion has a pointed end.
Further, the top plate comprises a plurality of prefabricated top plates distributed along the trend of the gallery body. Two adjacent prefabricated top plates are connected into a whole by injecting slurry into the joint.
Furthermore, a plurality of rotary spraying piles are arranged in the substrate below the bottom plate.
The technical effects of the invention are undoubted:
A. part of the upright columns are inserted into the foundation to play a role of a pile foundation, and form a pile plate structure after being combined with the bottom plate to support upper load and control settlement without performing additional reinforcement treatment on a soft soil foundation;
B. the prefabricated part is small in size, light in weight and convenient to install, the construction efficiency can be greatly improved, and the quick installation of the underground pipe gallery is realized;
C. through slip casting interconnect in each prefabricated component joint, form the piping lane whole, both can prevent the groundwater seepage, have fine antidetonation effect again simultaneously
D. The upright columns, the side plates and the cross beams are firstly excavated in place in the foundation pit soil body, so that the foundation pit supporting effect is achieved, additional foundation pit supporting is not needed, the civil construction materials are greatly saved, the construction efficiency is improved, and the construction period is shortened;
E. the jet grouting pile plays a hardening and reinforcing role in soil below the underground pipe gallery, and meanwhile, the cast-in-place bottom plate is reinforced in a full space to enable the underground pipe gallery to be firmer, the structural strength is higher, and the effect of preventing the underground pipe gallery from settling can be achieved.
Drawings
FIG. 1 is a schematic view of a utility tunnel structure;
FIG. 2 is a view showing a positional relationship of parts;
FIG. 3 is a schematic view of a column structure;
fig. 4 is a top view of the stud.
In the figure: the vertical column 1, the space pipe gallery part 101, the beam notch 1011, the axilla 1012, the vertical strip groove 1013, the grouting hole 1014, the holding layer part 102, the tip 1021, the beam 2, the side plate 3, the bottom plate 4, the top plate 5, the prefabricated top plate 501 and the rotary spraying pile 9.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
the embodiment discloses a construction method of an assembled comprehensive pipe gallery in a soft soil area, which comprises the following steps:
1) and leveling the field according to the construction requirement.
2) Paying off the ground surface according to the design requirement, and marking the position of the upright post 1.
3) The vertical bar groove 1013 of the column 1 is filled with cork. The upright post 1 is implanted into the foundation according to the designed depth. Wherein the column 1 comprises a spatial pipe gallery portion 101 and a bearing layer portion 102. The spatial tube lane portion 101 is located above the support layer portion 102. The spatial tube lane portion 101 and the support layer portion 102 are integral. The bearing layer portion 102 is inserted into a soft ground to provide bearing capacity. The spatial tube lane portion provides tube lane structural support. The space pipe gallery part 101 is integrally a rectangular column. The four sidewalls of this rectangular cylinder are labeled first, second, third, and fourth sidewalls in that order. The planes of the first side wall and the third side wall are parallel to the trend of the gallery body, and the planes of the second side wall and the fourth side wall are perpendicular to the trend of the gallery body. A cuboid is removed from the first side wall to form a beam notch 1011. One outlet of the cross beam notch 1011 is at the top surface of the upright 1. The upper portion of the third side wall is provided with axilla corners 1012. The upper surface of the axilla corner 1012 is higher than the top surface of the upright post 1. And vertical bar grooves 1013 which are wedged with the side plates 3 are arranged on the second side wall and the fourth side wall. And grouting holes 1014 are vertically arranged on the wall of the vertical strip groove 1013. The grout holes 1014 extend from the top to the bottom of the spatial tube lane portion 101. Grouting pipes are embedded in the grouting holes 1014. The columns 1 are arranged in two rows. The upright posts 1 in each row are arranged at intervals along the trend of the gallery body. In two rows of stand 1, the third lateral wall of two relative stands 1 deviates from, and the first lateral wall is relative.
4) And a side plate 3 is embedded between two adjacent upright columns 1 in the same row of upright columns. Wherein the side plate 3 extrudes the cork filled in the vertical bar groove 1013.
5) And injecting expanded cement mortar into the grouting pipe embedded in the grouting hole 1014. The upright posts 1 are fixedly connected with the corresponding side plates 3 into a whole.
6) Expanded cement mortar is smeared in the beam notch 1011. The two ends of the cross beam 2 are respectively embedded in the cross beam notches 1011 of two opposite upright posts 1 in the two rows of upright posts 1. The expansion cement mortar in the beam gap 1011 fixedly connects the beam 2 and the two corresponding upright posts 1 into a whole.
7) And excavating the soil body in the designed pipe gallery foundation pit.
8) And pouring the bottom plate 4 at the designed elevation position of the bottom plate of the pipe gallery. The bottom plate 4, the upright posts 1 and the side plates 3 are poured into a whole. The bottom plate 4 and the bearing layer part 102 of the upright column 1 jointly form a pile plate structure, support upper load and control settlement.
9) A top plate 5 is erected above the cross beam 2.
10) Backfilling the excavated soil body in the step 7) above the top plate 5 to form an underground pipe gallery space.
Example 2:
the foundation in this embodiment is a weak foundation. This embodiment is squeezed into stand 1 location in soft soil foundation to install curb plate 3, installation crossbeam 2 in proper order, pour bottom plate 4 and form the full hall of basement and consolidate and install roof 5, form assembled utility tunnel. The embodiment discloses a construction method of an assembled comprehensive pipe gallery in a soft soil area, which comprises the following steps:
1) leveling the field: and cleaning and leveling the site according to the requirements of the construction site.
2) Paying off: and paying off the ground surface according to design requirements. According to the design paper of the pipe gallery, white lime is scattered on the ground surface, and the position of the upright post 1 is marked.
3) Constructing a stand column: the vertical bar groove 1013 of the column 1 is filled with cork. According to the designed depth, the upright column 1 is implanted into the foundation by adopting a hammering method or a static pile pressing method. Wherein the column 1 comprises a spatial pipe gallery portion 101 and a bearing layer portion 102. The spatial tube lane portion 101 is located above the support layer portion 102. The spatial tube lane portion 101 and the support layer portion 102 are integral. The bearing layer portion 102 is inserted into a soft ground to provide bearing capacity. The spatial tube lane portion provides tube lane structural support. The space pipe gallery part 101 is integrally a rectangular column. The four sidewalls of this rectangular cylinder are labeled first, second, third, and fourth sidewalls in that order. The planes of the first side wall and the third side wall are parallel to the trend of the gallery body, and the planes of the second side wall and the fourth side wall are perpendicular to the trend of the gallery body. A cuboid is removed from the first side wall to form a beam notch 1011. One outlet of the cross beam notch 1011 is at the top surface of the upright 1. The upper portion of the third side wall is provided with axilla corners 1012. The upper surface of the axilla corner 1012 is higher than the top surface of the upright post 1. And vertical bar grooves 1013 which are wedged with the side plates 3 are arranged on the second side wall and the fourth side wall. And grouting holes 1014 are vertically arranged on the wall of the vertical strip groove 1013. The grout holes 1014 extend from the top to the bottom of the spatial tube lane portion 101. Grouting pipes are embedded in the grouting holes 1014. The upper end and the lower end of the grouting pipe are open, and the side wall is provided with a small hole. The columns 1 are arranged in two rows. The upright posts 1 in each row are arranged at intervals along the trend of the gallery body. In two rows of stand 1, the third lateral wall of two relative stands 1 deviates from, and the first lateral wall is relative.
4) Installing a side plate: and a side plate 3 is embedded between two adjacent upright columns 1 in the same row of upright columns. Wherein the side plate 3 extrudes the cork filled in the vertical bar groove 1013.
5) Grouting the connecting section: and the expansion cement mortar is injected into the grouting pipe pre-embedded in the grouting hole 1014, and the expansion cement mortar fills the groove grouting hole 1014 and the vertical bar groove 1013 from bottom to top. The upright posts 1 are fixedly connected with the corresponding side plates 3 into a whole.
6) Mounting a cross beam: expanded cement mortar is smeared in the beam notch 1011. The two ends of the cross beam 2 are respectively embedded in the cross beam notches 1011 of two opposite upright posts 1 in the two rows of upright posts 1. The expansion cement mortar in the beam gap 1011 fixedly connects the beam 2 and the two corresponding upright posts 1 into a whole.
7) Reinforcing the base rotary jet grouting pile: a rotary spraying grouting pipe and a nozzle drill are arranged at the designed elevation of a stand column 1 by a drilling machine, liquid flow is sprayed out from a nozzle of the grouting pipe at high speed by a high-pressure generating device after prepared slurry is prepared in advance, a soil body is directly damaged, meanwhile, a drill rod is lifted while rotating, the slurry and the soil body are fully stirred and mixed, a columnar consolidation body with a certain diameter, namely a rotary spraying pile 9, is formed in the soil, and the foundation is reinforced.
8) Excavating a soil body: and (5) excavating the foundation pit by using an excavating machine to reach the designed elevation of the pipe gallery.
9) Casting a bottom plate in situ: and pouring the bottom plate 4 at the designed elevation position of the bottom plate of the pipe gallery. The bottom plate 4, the upright posts 1 and the side plates 3 are poured into a whole to form a full foundation. The bottom plate 4 and the bearing layer part 102 of the upright column 1 jointly form a pile plate structure, support upper load and control settlement.
10) Installing a top plate: a top plate 5 is erected above the cross beam 2. And ethylene oxide resin is injected into the connecting seams of the top plate 5, the upright posts 1, the cross beams 2 and the side plates 3 to prevent the permeation of underground water.
11) Backfilling the upper part: backfilling the excavated soil body in the step 8) above the top plate 5 to form an underground pipe gallery space.
It should be noted that, in this embodiment, the columns 1 and the side plates 3 may be used as a supporting structure for excavation of a pipe gallery foundation pit during the formation of the fabricated comprehensive pipe gallery. And after the side plate 3 is installed, foundation pit excavation can be carried out. All components except the bottom plate 4 are factory prefabricated. The components can be assembled on site, and the construction efficiency is high. The whole pipe gallery has certain integrity, shock resistance and impermeability. The invention also discloses a construction method of the pipe gallery. The embodiment has remarkable effects of reducing the construction cost, simplifying the installation process, improving the construction efficiency and the like, and has wide application prospect.
Example 3:
referring to fig. 1, the present embodiment discloses a soft soil area fabricated utility tunnel manufactured by the construction method described in embodiment 2, which includes frame members arranged at intervals along the body direction of the tunnel, and side plates 3, a bottom plate 4 and a top plate 5.
The frame component comprises two upright posts 1 and a cross beam 2. The cross beam 2 is connected between the two upright posts 1.
Referring to fig. 3 and 4, the column 1 includes a space tube lane portion 101 and a support layer portion 102. The lower portion of the bearing layer portion 102 has a tip 1021 to facilitate column construction. The bearing layer portion 102 is inserted into a soft ground. The spatial tube lane portion 101 is located above the support layer portion 102. The space pipe gallery part 101 is integrally a rectangular column. The four sidewalls of this rectangular cylinder are labeled first, second, third, and fourth sidewalls in that order. The first side wall faces the interior of the pipe gallery, and the plane where the second side wall and the fourth side wall are located is perpendicular to the direction of the gallery body. A cuboid is removed from the first side wall to form a beam notch 1011. One outlet of the cross beam notch 1011 is at the top surface of the upright 1. The upper portion of the third side wall is provided with axilla corners 1012. The upper surface of the axilla corner 1012 is higher than the top surface of the upright post 1. The two ends of the beam 2 are respectively embedded in the beam notches 1011 of the two upright posts 1. And vertical bar grooves 1013 which are wedged with the side plates 3 are arranged on the second side wall and the fourth side wall. The wall of the vertical bar groove 1013 is provided with a vertical grouting hole 1014. The grout holes 1014 extend from the top to the bottom of the spatial tube lane portion 101. Grouting pipes are embedded in the grouting holes 1014.
Two side plates 3 are arranged between two adjacent frame parts. The two ends of the side plate 3 are respectively inserted into the vertical grooves 1013 on the second side wall and the vertical grooves 1013 on the fourth side wall of the corresponding two upright posts 1.
Referring to fig. 2, the bottom plate 4 is a reinforced concrete slab. The bottom plate 4 is arranged below the side plate 3. The bottom plate 4, the upright posts 1 and the side plates 3 are poured into a whole. The bottom plate 4 and the bearing layer part 102 together form a pile plate structure. In the basement below the floor 4 there are jet-grouting piles 9.
The top plate 5 is set up above the frame part. The top plate 5 comprises a plurality of prefabricated top plates 501 arranged along the trend of the gallery body. Two adjacent prefabricated top plates 501 are connected into a whole through grouting in the seams.

Claims (8)

1. A construction method of an assembly type comprehensive pipe gallery in a soft soil area is characterized by comprising the following steps:
1) leveling the field according to the construction requirement;
2) paying off the ground surface according to design requirements, and marking the position of the upright post (1);
3) a cork stopper is filled in the vertical strip groove (1013) of the upright post (1); the upright post (1) is implanted into the foundation according to the designed depth; wherein the column (1) comprises a spatial pipe gallery portion (101) and a bearing layer portion (102); the spatial pipe gallery portion (101) is located above the bearing layer portion (102); the space pipe gallery part (101) and the supporting layer part (102) are integrated; the bearing layer portion (102) is inserted into a soft soil foundation; the space pipe gallery part (101) is integrally a rectangular column; the four side walls of the rectangular column are sequentially marked as a first side wall, a second side wall, a third side wall and a fourth side wall; the planes of the first side wall and the third side wall are parallel to the direction of the gallery body, and the planes of the second side wall and the fourth side wall are vertical to the direction of the gallery body; a cuboid is removed from the first side wall to form a cross beam notch (1011); one outlet of the cross beam notch (1011) is arranged on the top surface of the upright post (1); the upper part of the third side wall is provided with an axilla corner (1012); the upper surface of the axillary corner (1012) is higher than the top surface of the upright post (1); vertical strip grooves (1013) which are wedged with the side plates (3) are formed in the second side wall and the fourth side wall; grouting holes (1014) are vertically formed in the wall of the vertical strip groove (1013); the grout holes (1014) extend from the top surface to the bottom surface of the spatial tube lane portion (101); grouting pipes are embedded in the grouting holes (1014); the upright posts (1) are arranged in two rows; the upright posts (1) in each row are arranged at intervals along the trend of the gallery body; in the two rows of upright columns (1), the third side walls of the two opposite upright columns (1) deviate, and the first side walls are opposite;
4) a side plate (3) is embedded between two adjacent upright columns (1) in the same row of upright columns; wherein the lateral plates (3) extrude the cork filled in the vertical bar grooves (1013);
5) injecting expanded cement mortar into a grouting pipe pre-embedded in a grouting hole (1014); the upright posts (1) and the corresponding side plates (3) are fixedly connected into a whole;
6) spreading expanded cement mortar in the gap (1011) of the cross beam; two ends of the cross beam (2) are respectively embedded in cross beam notches (1011) of two opposite upright posts (1) in the two rows of upright posts (1); the beam (2) and the two corresponding upright columns (1) are fixedly connected into a whole by the expanded cement mortar in the beam gap (1011);
7) excavating a soil body in the design pipe gallery foundation pit;
8) pouring a bottom plate (4) at the designed elevation position of the bottom plate of the pipe gallery; the bottom plate (4), the upright posts (1) and the side plates (3) are poured into a whole; the bottom plate (4) and the bearing layer part (102) of the upright post (1) jointly form a pile plate structure;
9) a top plate (5) is erected above the cross beam (2);
10) backfilling the excavated soil body in the step 7) above the top plate (5) to form an underground pipe gallery space.
2. The construction method of the fabricated comprehensive pipe gallery in the soft soil area according to claim 1, characterized in that: when the foundation is a soft foundation, after the step 6), the relevant step of reinforcing the base by using the jet grouting piles (9) is carried out.
3. The construction method of the fabricated comprehensive pipe gallery in the soft soil area according to claim 1, characterized in that: in the step 3), the upright post (1) is implanted into the foundation by adopting a hammering method or a static pile pressing method.
4. The construction method of the fabricated comprehensive pipe gallery in the soft soil area according to claim 1, characterized in that: and after the step 9), injecting ethylene oxide resin into the connecting seams of the top plate (5) and the upright post (1), the cross beam (2) and the side plates (3).
5. An assembled utility tunnel in soft soil areas made by the construction method of claim 1, characterized in that: comprises a plurality of frame components which are arranged at intervals along the trend of the gallery body, a plurality of side plates (3), a bottom plate (4) and a top plate (5);
the frame component comprises two upright posts (1) and a cross beam (2); the cross beam (2) is connected between the two upright posts (1);
the column (1) comprises a spatial pipe gallery part (101) and a bearing layer part (102); the bearing layer portion (102) is inserted into a soft soil foundation; the spatial pipe gallery portion (101) is located above the bearing layer portion (102); the space pipe gallery part (101) is integrally a rectangular column; the four side walls of the rectangular column are sequentially marked as a first side wall, a second side wall, a third side wall and a fourth side wall; the first side wall faces the interior of the pipe gallery, and the planes of the second side wall and the fourth side wall are perpendicular to the direction of the gallery body; vertical strip grooves (1013) which are wedged with the side plates (3) are formed in the second side wall and the fourth side wall; the wall of the vertical strip groove (1013) is provided with a vertical grouting hole (1014); the grout holes (1014) extend from the top surface to the bottom surface of the spatial tube lane portion (101); grouting pipes are embedded in the grouting holes (1014);
two side plates (3) are arranged between two adjacent frame parts; two ends of the side plate (3) are respectively embedded into a vertical strip groove (1013) on the second side wall and a vertical strip groove (1013) on the fourth side wall of the corresponding two upright posts (1);
the bottom plate (4) is a reinforced concrete plate; the bottom plate (4) is arranged below the side plate (3); the bottom plate (4), the upright posts (1) and the side plates (3) are poured into a whole; the bottom plate (4) and the bearing layer part (102) jointly form a pile plate structure;
the top plate (5) is erected above the frame part.
6. A soft soil area assembled utility tunnel of claim 5, characterized in that: the lower portion of the support layer portion (102) has a pointed end (1021).
7. A soft soil area assembled utility tunnel of claim 5, characterized in that: the top plate (5) comprises a plurality of prefabricated top plates (501) distributed along the direction of the gallery body; two adjacent prefabricated top plates (501) are connected into a whole by injecting slurry in the joint.
8. A soft soil area assembled utility tunnel of claim 5, characterized in that: a plurality of rotary spraying piles (9) are arranged in the base below the bottom plate (4).
CN201910166196.4A 2019-03-06 2019-03-06 Soft soil area assembled comprehensive pipe gallery and construction method thereof Active CN109914472B (en)

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CN111779022A (en) * 2020-01-02 2020-10-16 温州大学 Novel structure of underground comprehensive pipe gallery in anti-settling and anti-inclining soft soil foundation and construction method thereof
CN111424567B (en) * 2020-03-26 2021-08-24 中电建十一局工程有限公司 Highway soft soil foundation culvert construction method
CN113373975A (en) * 2021-07-13 2021-09-10 荣华(青岛)建设科技有限公司 Assembled rectangle utility tunnel of underground construction and piping lane prefab

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JP2009264088A (en) * 2008-04-23 2009-11-12 Takahashi Kanri:Kk Underground system temporary frame
CN207672609U (en) * 2017-11-02 2018-07-31 西安交通大学 A kind of foundation pit supporting construction also serves as the pipe gallery of main body
CN108252329A (en) * 2018-03-20 2018-07-06 浙江新盛建设集团有限公司 The assembled pipe gallery and its construction method of building enclosure load
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CN108951702A (en) * 2018-08-01 2018-12-07 四川兴昌建设工程有限公司 A kind of construction method of pipe gallery

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