CN112411577A - Novel construction method applied to backfill of comprehensive pipe gallery - Google Patents
Novel construction method applied to backfill of comprehensive pipe gallery Download PDFInfo
- Publication number
- CN112411577A CN112411577A CN202011191511.8A CN202011191511A CN112411577A CN 112411577 A CN112411577 A CN 112411577A CN 202011191511 A CN202011191511 A CN 202011191511A CN 112411577 A CN112411577 A CN 112411577A
- Authority
- CN
- China
- Prior art keywords
- pipe gallery
- backfill
- soil
- comprehensive pipe
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention relates to a novel construction method applied to the backfill of a comprehensive pipe gallery, which mainly comprises the improvement of the protection of the outer wall surface of the comprehensive pipe gallery and the improvement of the backfill of the comprehensive pipe gallery; the outer wall surface protection of the comprehensive pipe gallery is carried out by adopting sprayed foaming rapid hardening concrete for wrapping protection; and tamping the soil layer close to the outer wall surface of the pipe gallery by using an improved tamping machine. The method has the advantages of simple structure, convenient use, innovative use of the method for protecting the pipe gallery by spraying the foaming concrete, and improvement of the existing tamping tool, can greatly improve the backfill quality close to the surface of the pipe gallery compared with the traditional backfill tamping method, and saves more time compared with the traditional mode.
Description
Technical Field
The invention relates to a novel construction method applied to comprehensive pipe gallery backfilling.
Background
The traditional method for backfilling the underground comprehensive pipe gallery is to brick the outer wall of the pipe gallery and directly backfill (such as CN201510365569.2 light foam soil applied to bridge abutment backfill and a construction method or after a polystyrene board is pasted for protection, a small-sized tamping tool is adopted to tamp the soil close to the outer wall surface of the pipe gallery, the tamping force is small, the comprehensive pipe gallery is often damaged in the layered tamping process of a road roller and an excavator, and the finished product protection of the comprehensive pipe gallery is not facilitated, another more recent method is to protect a structure by using a foam concrete block, or protection of pouring foam concrete by using a formwork is required, and tools are required to be preliminarily modified in backfilling and tamping (such as CN201821542037.7 novel abutment backfill equipment modified by a breaking hammer).
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a novel construction method applied to the backfill of the comprehensive pipe gallery, has simple structure and convenient use, can remove the use of bricks and templates and labor input compared with other backfill methods, and saves more time compared with the traditional mode.
In order to solve the technical problem, the invention is realized as follows:
a novel construction method applied to the backfill of a comprehensive pipe gallery mainly comprises the improvement of the protection of the outer wall surface of the comprehensive pipe gallery and the improvement of the backfill of the comprehensive pipe gallery; it is characterized by comprising the following steps:
1) cleaning the foundation pit bottom before backfilling construction, and protecting the outer wall of the comprehensive pipe gallery by using sprayed concrete with the thickness of 10 cm;
2) backfilling pseudo-ginseng grey soil within 2m above the substrate, backfilling with plain soil more than 2m, stacking the plain soil and lime transported to the site according to specified positions, paying attention to moisture resistance of the lime, timely arranging the lime on the site for use, checking whether the plain soil and the lime on the site are qualified or not, and cleaning sundries and stones in the plain soil and the lime; determining whether the water content of the graded stone and the plain soil is in a control range, if the water content is high, loosening and airing can be adopted, and if the water content is low, measures such as watering and wetting can be adopted to ensure the quality of the backfill soil;
3) metering the lime soil, namely sieving the plain soil and the lime, and uniformly mixing the three buckets of lime and the seven buckets of plain soil by using an excavator;
4) laying and paving backfill in layers, leveling by a bulldozer, laying pseudo-ginseng soil ash in each layer to a virtual paving thickness no more than 20cm when foundation pit backfill is carried out, firstly compacting pseudo-ginseng soil ash close to the outer wall surface of the pipe gallery by using an improved compacting machine after laying one layer, then compacting the large surface by using a 18t road roller, and determining parameters such as compacting times, mechanical parameters, virtual paving thickness and the like through a test section;
5) ramming each layer of the backfill soil for at least three times; the ramming is carried out by one ramming pressure and half ramming, and the ramming is connected with each other in a row and crossed vertically and horizontally. Watering is strictly forbidden to make soil sink, namely 'water ramming';
6) after each layer is tamped, performing a cutting ring sampling test, and backfilling the previous layer after the previous layer is qualified;
7) in the backfilling construction process, if parts which cannot be backfilled in time are met, step joints are reserved at the joints, the height is 50cm, and the width is 100 cm;
8) the backfilling should be continuously carried out and completed as soon as possible, the rain condition should be noticed in the construction process, and the filled soil layer should be tamped in time or the surface should be polished before raining to form a certain slope type, so as to facilitate drainage.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: the outer wall surface protection of the comprehensive pipe gallery is carried out by adopting sprayed foaming rapid hardening concrete for wrapping protection; and tamping the soil layer close to the outer wall surface of the pipe gallery by using an improved tamping machine.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: the thickness of the spray foaming quick-setting concrete is 10 cm.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: the raw material of the spray foaming quick-setting concrete adopts 42.5 grade or above ordinary portland cement, the performance of the spray foaming quick-setting concrete is in accordance with the regulation of GB175, and 42.5 grade or above portland cement or early strength portland cement is preferably adopted during winter construction; the fly ash is preferably F-class fly ash with the grade above II, and the performance of the fly ash accords with the specification of GB/T1596 on F-class fly ash; the granulated blast furnace slag powder is preferably S95 or above, and the performance of the granulated blast furnace slag powder conforms to the regulation of GB/T18046; the foaming agent is a composite foaming agent of rosin and protein; and (3) carrying out heavy planting on the foamed concrete at 1000kg/m, wherein the strength grade is more than or equal to CF 0.8, and the volume water absorption grade is less than or equal to W15.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: the concrete is characterized in that the concrete is prepared from the following components in percentage by weight: water: foaming agent: water reducing agent =3000g 840 ml: 120g, 30 ml; the water-cement ratio is not more than 28 percent, the mixing amount of the foaming agent is about 1 percent, the mixing amount of the water reducing agent is about 3 thousandth, the setting time is well controlled so as to give sufficient reaction time for the foaming agent, and a mixing ratio test needs to be carried out before use to further determine.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: the equipment for spraying the foaming quick-setting concrete needs to improve the nozzle in a form of double pipes and a single pipe so as to ensure that the foaming agent and the concrete are sprayed out through the combined single pipe after being sprayed and instantly mixed in the respective pipes, and the pipe diameter of the foaming agent and the pressure of an air compressor are adjusted before use, so that the mixing amount meets the requirement.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: adopt the rammer after improving to need reform transform the quartering hammer tip near piping lane outer wall surface soil layer, adopt the form of steel sheet lug, reach the purpose of dynamic compaction.
The novel construction method applied to the backfill of the comprehensive pipe gallery is characterized by comprising the following steps of: the improved end part of the breaking hammer of the tamper is reformed as follows:
1) disassembling a drill rod of the breaking hammer, and threading a 12cm long thread from the end part;
2) a steel plate with the material size of 800cm multiplied by 10cm and the material size of Q345B is used; drilling a hole in the center, wherein the diameter of the hole is the same as that of the drill rod, and threading the hole;
3) manufacturing 50mm multiplied by 10mm, spacing 10mm, and fully welding on a steel plate;
4) the four sides of the steel plate are fully wrapped by artificial rubber strips with the thickness of 10 mm;
5) the central hole of the steel plate is connected with the drill rod through screw thread.
The invention has the beneficial effects that: through the quick protection and the improvement tamping machinery to the piping lane outer wall face, realized effective tamping and the finished product protection of piping lane backfill soil, reduce on-the-spot labour input, improved efficiency of construction and quality.
1) Compared with the traditional protection mode of the finished product of the pipe gallery, the method saves a large amount of labor cost due to the fact that the polystyrene boards are not sticky and are easy to fall off and the damage to resources and environment caused by wall building protection is avoided, and the method is different from the traditional concrete pouring mode that a supporting template system needs to be erected;
2) compared with the traditional small-sized tamper, the improved tamper has the advantages of large tamping area, high strength and existence of the protruded small-sized steel plate, thereby further enhancing the tamping effect;
3) by combining the protective spraying quick-setting foaming concrete and the improved tamping tool, the operation efficiency is greatly improved, the construction quality is improved, and the construction period and the construction cost are reduced.
4) Due to the similarity of the pipe gallery foundation pit backfill and the abutment back backfill of the bridge abutment, the construction method is widely applied and can be fully used for reference in similar construction sites.
5) The mix proportion of the foamed concrete can be adjusted according to the on-site conditions of the cubic compressive strength and the wet density so as to meet the requirements of different constructions.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a cross-sectional view of a pipe gallery;
FIG. 2 is a schematic front view of a nozzle of the apparatus for spraying foamed quick-setting concrete according to the present invention;
FIG. 3 is a schematic illustration of a steel plate for modifying a tamper;
FIG. 4 is a schematic view of a demolition hammer shank;
FIG. 5 is a schematic view of a raised block for an improved tamper;
FIG. 6 is a schematic view of the improved tamper tool shank and plate assembly.
Detailed Description
As shown in fig. 1: a novel construction method applied to the backfill of a comprehensive pipe gallery mainly comprises the improvement of the protection of the outer wall surface of the comprehensive pipe gallery and the improvement of the backfill of the comprehensive pipe gallery; it comprises the following steps:
1) cleaning the bottom of the foundation pit before backfilling construction, and protecting the outer wall of the comprehensive pipe gallery 1 by using sprayed concrete 2 with the thickness of 10 cm;
2) backfilling pseudo-ginseng grey soil within 2m above the substrate, backfilling with plain soil more than 2m, stacking the plain soil and lime transported to the site according to specified positions, paying attention to moisture resistance of the lime, timely arranging the lime on the site for use, checking whether the plain soil and the lime on the site are qualified or not, and cleaning sundries and stones in the plain soil and the lime; determining whether the water content of the graded stone and the plain soil is in a control range, if the water content is high, loosening and airing can be adopted, and if the water content is low, measures such as watering and wetting can be adopted to ensure the quality of the backfill soil;
3) metering the lime soil, namely sieving the plain soil and the lime, and uniformly mixing the three buckets of lime and the seven buckets of plain soil by using an excavator;
4) laying and paving backfill in layers, leveling by a bulldozer, laying pseudo-ginseng soil ash in each layer to a virtual paving thickness no more than 20cm when foundation pit backfill is carried out, firstly compacting pseudo-ginseng soil ash close to the outer wall surface of the pipe gallery by using an improved compacting machine after laying one layer, then compacting the large surface by using a 18t road roller, and determining parameters such as compacting times, mechanical parameters, virtual paving thickness and the like through a test section;
5) ramming each layer of the backfill soil for at least three times; the ramming is carried out by one ramming pressure and half ramming, and the ramming is connected with each other in a row and crossed vertically and horizontally. Watering is strictly forbidden to make soil sink, namely 'water ramming';
6) after each layer is tamped, performing a cutting ring sampling test, and backfilling the previous layer after the previous layer is qualified;
7) in the backfilling construction process, if parts which cannot be backfilled in time are met, step joints are reserved at the joints, the height is 50cm, and the width is 100 cm;
8) the backfilling should be continuously carried out and completed as soon as possible, the rain condition should be noticed in the construction process, and the filled soil layer should be tamped in time or the surface should be polished before raining to form a certain slope type, so as to facilitate drainage.
The outer wall surface protection of the comprehensive pipe gallery is carried out by adopting sprayed foaming rapid hardening concrete for wrapping protection; and tamping the soil layer close to the outer wall surface of the pipe gallery by using an improved tamping machine.
The thickness of the spray foaming quick-setting concrete is 10 cm.
The raw material of the spray foaming quick-setting concrete adopts 42.5 grade or above ordinary portland cement, the performance of the spray foaming quick-setting concrete is in accordance with the regulation of GB175, and 42.5 grade or above portland cement or early strength portland cement is preferably adopted during winter construction; the fly ash is preferably F-class fly ash with the grade above II, and the performance of the fly ash accords with the specification of GB/T1596 on F-class fly ash; the granulated blast furnace slag powder is preferably S95 or above, and the performance of the granulated blast furnace slag powder conforms to the regulation of GB/T18046; the foaming agent is a composite foaming agent of rosin and protein; and (3) carrying out heavy planting on the foamed concrete at 1000kg/m, wherein the strength grade is more than or equal to CF 0.8, and the volume water absorption grade is less than or equal to W15.
The concrete is characterized in that the concrete is prepared from the following components in percentage by weight: water: foaming agent: water reducing agent =3000g 840 ml: 120g, 30 ml; the water-cement ratio is not more than 28 percent, the mixing amount of the foaming agent is about 1 percent, the mixing amount of the water reducing agent is about 3 thousandth, the setting time is well controlled so as to give sufficient reaction time for the foaming agent, and a mixing ratio test needs to be carried out before use to further determine.
As shown in fig. 2: the equipment for spraying the foaming quick-setting concrete needs to improve the nozzle in a form of double pipes and a single pipe so as to ensure that foaming agent and concrete are sprayed out through the combined single pipe after being sprayed and instantly mixed in the respective pipes, and the equipment comprises temporary storage concrete 3, a foaming agent discharge port 4 and a cement slurry discharge port 5, wherein the pipe diameter of the foaming agent and the pressure of an air compressor are adjusted before the equipment is used, so that the mixing amount meets the requirement.
As shown in fig. 3-6: adopt the rammer after improving to need reform transform the quartering hammer tip near piping lane outer wall surface soil layer, adopt the form of steel sheet lug, reach the purpose of dynamic compaction.
The improved end part of the breaking hammer of the tamper is reformed as follows:
1) disassembling the breaking hammer drill rod 9, and threading by 12cm long thread from the end part;
2) a steel plate 6 with the material quality of being 800cm multiplied by 10cm and made of Q345B is used; drilling a hole in the center, wherein the diameter of the hole is the same as that of the drill rod, and threading the hole;
3) manufacturing a bump 7 with a distance of 50mm multiplied by 10mm and a distance of 10mm, and fully welding the bump on a steel plate;
4) the four sides of the thickness of the steel plate are fully wrapped by artificial rubber strips 10 with the thickness of 10 mm;
5) the steel plate center hole 8 is a steel drill assembling hole, and the internal thread tapping is in threaded connection with the drill rod.
Claims (8)
1. A novel construction method applied to the backfill of a comprehensive pipe gallery mainly comprises the improvement of the protection of the outer wall surface of the comprehensive pipe gallery and the improvement of the backfill of the comprehensive pipe gallery; it is characterized by comprising the following steps:
1) cleaning the foundation pit bottom before backfilling construction, and protecting the outer wall of the comprehensive pipe gallery by using sprayed concrete with the thickness of 10 cm;
2) backfilling pseudo-ginseng grey soil within 2m above the substrate, backfilling with plain soil more than 2m, stacking the plain soil and lime transported to the site according to specified positions, paying attention to moisture resistance of the lime, timely arranging the lime on the site for use, checking whether the plain soil and the lime on the site are qualified or not, and cleaning sundries and stones in the plain soil and the lime; determining whether the water content of the graded stone and the plain soil is in a control range, if the water content is high, loosening and airing can be adopted, and if the water content is low, measures such as watering and wetting can be adopted to ensure the quality of the backfill soil;
3) metering the lime soil, namely sieving the plain soil and the lime, and uniformly mixing the three buckets of lime and the seven buckets of plain soil by using an excavator;
4) laying and paving backfill in layers, leveling by a bulldozer, laying pseudo-ginseng soil ash in each layer to a virtual paving thickness no more than 20cm when foundation pit backfill is carried out, firstly compacting pseudo-ginseng soil ash close to the outer wall surface of the pipe gallery by using an improved compacting machine after laying one layer, then compacting the large surface by using a 18t road roller, and determining parameters such as compacting times, mechanical parameters, virtual paving thickness and the like through a test section;
5) ramming each layer of the backfill soil for at least three times; the ramming is carried out by one ramming pressure and half ramming, and the ramming is connected with each other in a row and crossed vertically and horizontally. Watering is strictly forbidden to make soil sink, namely 'water ramming';
6) after each layer is tamped, performing a cutting ring sampling test, and backfilling the previous layer after the previous layer is qualified;
7) in the backfilling construction process, if parts which cannot be backfilled in time are met, step joints are reserved at the joints, the height is 50cm, and the width is 100 cm;
8) the backfilling should be continuously carried out and completed as soon as possible, the rain condition should be noticed in the construction process, and the filled soil layer should be tamped in time or the surface should be polished before raining to form a certain slope type, so as to facilitate drainage.
2. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 1, is characterized in that: the outer wall surface protection of the comprehensive pipe gallery is carried out by adopting sprayed foaming rapid hardening concrete for wrapping protection; and tamping the soil layer close to the outer wall surface of the pipe gallery by using an improved tamping machine.
3. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 2, is characterized in that: the thickness of the spray foaming quick-setting concrete is 10 cm.
4. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 2, is characterized in that: the raw material of the spray foaming quick-setting concrete adopts 42.5 grade or above ordinary portland cement, the performance of the spray foaming quick-setting concrete is in accordance with the regulation of GB175, and 42.5 grade or above portland cement or early strength portland cement is preferably adopted during winter construction; the fly ash is preferably F-class fly ash with the grade above II, and the performance of the fly ash accords with the specification of GB/T1596 on F-class fly ash; the granulated blast furnace slag powder is preferably S95 or above, and the performance of the granulated blast furnace slag powder conforms to the regulation of GB/T18046; the foaming agent is a composite foaming agent of rosin and protein; and (3) carrying out heavy planting on the foamed concrete at 1000kg/m, wherein the strength grade is more than or equal to CF 0.8, and the volume water absorption grade is less than or equal to W15.
5. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 2, is characterized in that: the concrete is characterized in that the concrete is prepared from the following components in percentage by weight: water: foaming agent: water reducing agent =3000g 840 ml: 120g, 30 ml; the water-cement ratio is not more than 28 percent, the mixing amount of the foaming agent is about 1 percent, the mixing amount of the water reducing agent is about 3 thousandth, the setting time is well controlled so as to give sufficient reaction time for the foaming agent, and a mixing ratio test needs to be carried out before use to further determine.
6. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 2, is characterized in that: the equipment for spraying the foaming quick-setting concrete needs to improve the nozzle in a form of double pipes and a single pipe so as to ensure that the foaming agent and the concrete are sprayed out through the combined single pipe after being sprayed and instantly mixed in the respective pipes, and the pipe diameter of the foaming agent and the pressure of an air compressor are adjusted before use, so that the mixing amount meets the requirement.
7. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 2, is characterized in that: adopt the rammer after improving to need reform transform the quartering hammer tip near piping lane outer wall surface soil layer, adopt the form of steel sheet lug, reach the purpose of dynamic compaction.
8. The novel construction method applied to the backfill of the comprehensive pipe gallery according to claim 7, is characterized in that: the improved end part of the breaking hammer of the tamper is reformed as follows:
1) disassembling a drill rod of the breaking hammer, and threading a 12cm long thread from the end part;
2) a steel plate with the material size of 800cm multiplied by 10cm and the material size of Q345B is used; drilling a hole in the center, wherein the diameter of the hole is the same as that of the drill rod, and threading the hole;
3) manufacturing 50mm multiplied by 10mm, spacing 10mm, and fully welding on a steel plate;
4) the four sides of the steel plate are fully wrapped by artificial rubber strips with the thickness of 10 mm;
5) the central hole of the steel plate is connected with the drill rod through screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191511.8A CN112411577A (en) | 2020-10-30 | 2020-10-30 | Novel construction method applied to backfill of comprehensive pipe gallery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191511.8A CN112411577A (en) | 2020-10-30 | 2020-10-30 | Novel construction method applied to backfill of comprehensive pipe gallery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112411577A true CN112411577A (en) | 2021-02-26 |
Family
ID=74828067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011191511.8A Pending CN112411577A (en) | 2020-10-30 | 2020-10-30 | Novel construction method applied to backfill of comprehensive pipe gallery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112411577A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616195A (en) * | 2022-11-15 | 2023-01-17 | 成都理工大学 | High-speed landslide starting process mechanism test device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110055796A (en) * | 2009-11-20 | 2011-05-26 | 고엄식 | A passage fabric used to multi slip form and methode there of |
| CN106988317A (en) * | 2017-02-28 | 2017-07-28 | 中国十七冶集团有限公司 | One kind is used for underground pipe gallery method for processing foundation |
| CN108160289A (en) * | 2017-12-25 | 2018-06-15 | 郑州天舜电子技术有限公司 | A kind of building waste efficiency crushing device |
| CN110886317A (en) * | 2019-12-10 | 2020-03-17 | 中国十七冶集团有限公司 | Foundation trench earthwork backfill construction method for steel sheet pile supporting structure of urban comprehensive pipe gallery |
-
2020
- 2020-10-30 CN CN202011191511.8A patent/CN112411577A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110055796A (en) * | 2009-11-20 | 2011-05-26 | 고엄식 | A passage fabric used to multi slip form and methode there of |
| CN106988317A (en) * | 2017-02-28 | 2017-07-28 | 中国十七冶集团有限公司 | One kind is used for underground pipe gallery method for processing foundation |
| CN108160289A (en) * | 2017-12-25 | 2018-06-15 | 郑州天舜电子技术有限公司 | A kind of building waste efficiency crushing device |
| CN110886317A (en) * | 2019-12-10 | 2020-03-17 | 中国十七冶集团有限公司 | Foundation trench earthwork backfill construction method for steel sheet pile supporting structure of urban comprehensive pipe gallery |
Non-Patent Citations (1)
| Title |
|---|
| 泡沫混凝土技术交流: "城市地下综合管廊建设轻质泡沫土（泡沫混凝土）回填施工方案和材", 《搜狗网页搜索》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616195A (en) * | 2022-11-15 | 2023-01-17 | 成都理工大学 | High-speed landslide starting process mechanism test device |
| CN115616195B (en) * | 2022-11-15 | 2023-03-07 | 成都理工大学 | High-speed landslide starting process mechanism test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110130278B (en) | Construction method of cemented dam | |
| CN106192907B (en) | Add the construction method of 150m~300m grade high concrete panel rock-fill dams of cement sand and gravel structure sheaf | |
| CN102776897B (en) | Wash apron anti-settling anti-cracking construction method and structure | |
| CN106759126B (en) | Construction method of side slope support drainage channel | |
| CN106812219A (en) | Filling wall top stuff up a crack construction method | |
| CN103556830A (en) | Controllable cast-in-place foam concrete roof construction method | |
| WO2022151677A1 (en) | Rapid integral slab replacement construction process for damaged pavement slab in civil aviation non-stop aviation construction | |
| CN112028591A (en) | Construction method of vertical roadbed made of red mud-based cast-in-place lightweight soil | |
| CN107989049A (en) | A kind of construction method of frame bank protection | |
| CN111676987A (en) | Construction method for backfilling construction of construction fertilizer tank by vibrating, slurry-flushing and ramming method | |
| CN112411577A (en) | Novel construction method applied to backfill of comprehensive pipe gallery | |
| CN108825301A (en) | A kind of quick walling method of heap pneumatically placed concrete for underground coal mine | |
| CN203096762U (en) | Anti-frost ground beam | |
| CN111908853A (en) | Self-compacting soil, preparation method thereof and construction method for backfilling municipal cavity | |
| CN102535493B (en) | Method for constructing inverted type foundation beam | |
| CN115613595A (en) | Application of waste concrete as backfill material and backfill construction method thereof | |
| CN203096758U (en) | Hard concrete smooth foundation pit for installing drainage pipeline | |
| CN103061352A (en) | Salt lake region bridge foundation concrete anticorrosion structure and construction method | |
| CN213115347U (en) | Dampproof ground | |
| CN104790565A (en) | Cast-in-site ardealite load bearing wall composite structure main building construction method | |
| CN108589758A (en) | A kind of foundation structure and construction method of acid-resistance infiltration | |
| CN111535323B (en) | Full-section quasi-tertiary matching long-age roller compacted concrete construction method | |
| CN114656200A (en) | Backfill material prepared from engineering waste slurry and preparation method thereof | |
| CN208251134U (en) | A kind of foundation structure of acid-resistance infiltration | |
| CN107935626B (en) | Construction method of rapid-hardening early-strength road |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210226 |
|
| RJ01 | Rejection of invention patent application after publication |