CN201883453U - Combined pipe jacking working well - Google Patents
Combined pipe jacking working well Download PDFInfo
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- CN201883453U CN201883453U CN2010206415636U CN201020641563U CN201883453U CN 201883453 U CN201883453 U CN 201883453U CN 2010206415636 U CN2010206415636 U CN 2010206415636U CN 201020641563 U CN201020641563 U CN 201020641563U CN 201883453 U CN201883453 U CN 201883453U
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- shoring
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Abstract
The utility model discloses a combined pipe jacking working well, which comprises a working well body made from reinforced concrete. An anchor sprayed concrete supporting structure is arranged outside the well body, the bottom end of the anchor sprayed concrete supporting structure is positioned on a bottom plate of the well body, and the top end of the anchor sprayed concrete supporting structure is higher than the top end of the well head. Since the anchor sprayed concrete supporting structure arranged outside can be used as a formwork during construction of working well side wall casting, usage of formwork, supports, wall feed-through bolts and the like is reduced during manufacturing process of the well body. After the well body is prefabricated, the anchor sprayed concrete supporting structure and the well body function as a wall so as to provide double safety guarantee to construction staff in the well. During construction, the sinking process is omitted, sinking stop, well deflection, sinking stalling, excessive sinking and the like during sinking process can be avoided, sinking observation is omitted, and quality risk is reduced.
Description
Technical field
The utility model relates to a kind of convenient making and the combined type upper pipe working well that uses in mechanical jacking construction.
Background technology
Development along with civilization of human society; people begin to reach on the ground the underground various artificial structure of building; various construction technologies have been produced thus; wherein trenchless technology is exactly a kind of in all construction technologies of building at underground artificial structure; the trenchless engineering technology has thoroughly solved in the piping laying construction the destruction of City Building and the difficult problems such as obstruction of road traffic, is highlighting its advantage aspect steady soil and the environmental protection.
Trenchless technology is to utilize few excavation: promptly active well and received well excavation, pipeline not excavation technology carry out the laying or the replacing of underground utilities, by active well the pipe that will bury underground is headed in the soil.This technology is widely used in the non-excavation laying of various pipelines such as city underground water supply and drainage pipeline, natural gas petroleum pipeline, communication cable in China.Its energy highway crossing, railway, bridge, high mountain, river, any building in straits and ground.Adopt this technology construction, the obstruction that can save a large number of expropriation of land removal expense, minimizing environmental pollution and road has remarkable economic efficiency and social benefit.
Active well then is the key link in the jacking construction, the effect of active well be to descend definitely engineering the position, carry and to finish the required various materials of underground construction, provide the operating space for various materials are processed to form final structure.
The tradition upper pipe working well adopts the drop shaft sinking construction, is to utilize the deadweight of prefabricated reinforced concrete well body and cooperate the well body well that sinks to finishing the work in place with soil digging in the artificial or mechanical well.Guaranteed that also thereby the relatively stable of well body surrounding soil lay good basis for later jacking construction though do like this, but open caisson construction itself has the certain quality risk, as well body in the open caisson process stop sinking, well body deflection, sinking stall in addition sink excessive etc., though the corresponding measure of the above-mentioned quality risk of reply is also arranged, but operate relative complex after all, risk factors are more, and when construction labour intensity big, cost is higher.The anchor shoring shotcrete method is a kind of common supporting method, but is used for the construction that tunnel, mountain rock etc. are located more, does not use the upper pipe working well of anchor shoring shotcrete structure and method at present.
The utility model content
The purpose of this utility model be to provide a kind of safer reliable, be easy to construction and lower-cost combined type active well.
For achieving the above object, combined type upper pipe working well of the present utility model comprises the active well well body that steel concrete is made, the external anchor shoring shotcrete structure that is equipped with of well, the bottom of described anchor shoring shotcrete structure is lower than the base plate of described well body, the top of described anchor shoring shotcrete structure is higher than the top of described well body, and described anchor shoring shotcrete structure is not established anchor pole at the hole of active well.
Described well body comprises side wall, roof and base plate, and the base plate bottom is cast with concrete cushion, and roof upwards connection is provided with the pit shaft that passes through for the people; Described anchor shoring shotcrete structure is an annular, and is extended to ground by the foundation ditch bottom in vertical direction; Described Jing Ticeqiang is that the external diameter of annular and Jing Ticeqiang is identical with the internal diameter of anchor shoring shotcrete structure.
The utlity model has following advantage:
1. the utility model is simple in structure, and is easy to use.Because the anchor shoring shotcrete structure in the outside is when serving as foundation pit enclosure structure, template in the time of also can doublely working well side wall pouring construction, therefore make to reduce in the process use amount of materials such as template, support, through-wall bolt in the well system, thereby reduced labour intensity and construction cost accordingly.
The well body is prefabricated finish after, anchor shoring shotcrete structure and well body play the effect of going along with sb. to guard him together jointly, thereby provide more solid dual safety guarantee for constructor in the well.
3. because the utility model need not adopt the drop shaft sinking construction, therefore the well body that can avoid occurring in the open caisson process in the past stops problems such as sinkings, well body deflection, sinking stall, sinking be excessive, the observation work of also need not sinking when constructing simultaneously, has correspondingly reduced difficulty of construction, has saved the required manpower of constructing the quality risk when having reduced construction, the operating efficiency when having improved construction.
This structure decrease a large amount of concrete, the amount of reinforcement of caisson structure in the past, material economy can reduce construction costs.
Description of drawings
Fig. 1 is a sectional structure schematic diagram of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
As shown in Figure 1, combined type upper pipe working well of the present utility model comprises the active well well body that steel concrete is made, and described well body comprises side wall 1, roof 2 and base plate 3, and base plate 3 bottoms are cast with concrete cushion 4, roof 2 upwards connection is provided with the pit shaft 5 that passes through for the people, is provided with cat ladder 6 in the pit shaft 5.The external anchor shoring shotcrete structure that is equipped with of well, the anchor shoring shotcrete structure comprises anchor pole 7 and concrete wall 8.Described anchor shoring shotcrete structure is an annular, and is extended to ground by the foundation ditch bottom in vertical direction; Described well side wall 1 is that the external diameter of annular and well side wall 1 is identical with the internal diameter of described concrete wall 8.Wherein, the foundation bed of described concrete wall 8 and anchor pole 7 is lower than active well well body basis, active well well body top is lower than anchor shotcrete support structure top, make the anchor shoring shotcrete structure play omnibearing support action, the template when being convenient to simultaneously make the well body during as active well side wall pouring construction to the well body.
Because the external diameter of well body is identical with the internal diameter of described concrete wall 8, therefore anchor shoring shotcrete structure and well body can be fitted closely, in work progress concrete wall 8 can be directly as the reinforced concrete well body outer wall template when prefabricated, can save the use amount of materials such as template, support, through-wall bolt thus, thereby labour intensity and construction cost have been reduced accordingly, the well body is prefabricated finish after, anchor shoring shotcrete structure and side wall 1 jointly provide more solid dual safety guarantee for constructor in the well together.
During construction, 80 millimeters of anchor pole 7 hole drilling diameters become downward 15 ° of orifice angle level, and anchor pole 7 employing diameters are the indented bars more than 22 millimeters; Except that top layer anchor pole 7 and bottom anchor pole 7, other anchor poles 7 must apply prestressing force; Anchor shotcrete support architecture basics bottom surface is lower than active well well body basis, and active well well body top is lower than anchor shotcrete support structure top.Concrete construction sequence is as follows:
(1) excavation pit; Reserve the soil layer of 5-10 cm thick by manual amendment at Po Bishang during excavation.
(2) adopt luoyang spade pore-forming and insert anchor pole 7, become downward 15 degree of orifice angle level, 80 millimeters of drilling diameters;
(3) perfusion mortar;
(4) reinforced mesh colligation;
(5) spray concrete and maintenance;
(6) apply prestressing force;
(7) active well side wall 1 steel concrete is built;
(8) active well base plate 3 steel concrete are built and concrete cushion 4 is built;
(9) active well seals and builds pit shaft 5 by laying bricks or stones;
(10) the medium coarse sand backfill is carried out in active well backfill on base plate 3, form medium-sand seam 9.
Combined type upper pipe working well of the present utility model carries out active well equipment earlier and installs in use; Carry out the jacking of active well pipeline 11 again.The first use, the concrete that needs before the jacking to guarantee base plate 3 reaches 100% of design strength.
Claims (2)
1. combined type upper pipe working well, it is characterized in that: comprise the active well well body that steel concrete is made, the external anchor shoring shotcrete structure that is equipped with of well, the bottom of described anchor shoring shotcrete structure is lower than the base plate of described well body, and the top of described anchor shoring shotcrete structure is higher than the top of described well body.
2. combined type upper pipe working well according to claim 1 is characterized in that: described well body comprises side wall, roof and base plate, and the base plate bottom is cast with concrete cushion, and roof upwards connection is provided with the pit shaft that passes through for the people; Described anchor shoring shotcrete structure is an annular, and is extended to ground by the foundation ditch bottom in vertical direction; Described Jing Ticeqiang is that the external diameter of annular and Jing Ticeqiang is identical with the internal diameter of anchor shoring shotcrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206415636U CN201883453U (en) | 2010-12-06 | 2010-12-06 | Combined pipe jacking working well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206415636U CN201883453U (en) | 2010-12-06 | 2010-12-06 | Combined pipe jacking working well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201883453U true CN201883453U (en) | 2011-06-29 |
Family
ID=44180991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206415636U Expired - Fee Related CN201883453U (en) | 2010-12-06 | 2010-12-06 | Combined pipe jacking working well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201883453U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173274A (en) * | 2019-05-31 | 2019-08-27 | 武汉市武昌市政建设(集团)有限公司 | A kind of head is removed obstacles method |
| CN112195973A (en) * | 2020-09-11 | 2021-01-08 | 北京市政路桥股份有限公司 | Pipe jacking working well structure and construction method thereof |
| CN113279470A (en) * | 2021-06-30 | 2021-08-20 | 广东省第四建筑工程有限公司 | Open-cut improved prefabricated horse riding well construction method |
-
2010
- 2010-12-06 CN CN2010206415636U patent/CN201883453U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173274A (en) * | 2019-05-31 | 2019-08-27 | 武汉市武昌市政建设(集团)有限公司 | A kind of head is removed obstacles method |
| CN112195973A (en) * | 2020-09-11 | 2021-01-08 | 北京市政路桥股份有限公司 | Pipe jacking working well structure and construction method thereof |
| CN113279470A (en) * | 2021-06-30 | 2021-08-20 | 广东省第四建筑工程有限公司 | Open-cut improved prefabricated horse riding well construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20171206 |