CN109853519A - The processing structure and processing method of ladder-like easy-weathering holystone layer substrate ground - Google Patents
The processing structure and processing method of ladder-like easy-weathering holystone layer substrate ground Download PDFInfo
- Publication number
- CN109853519A CN109853519A CN201910088889.6A CN201910088889A CN109853519A CN 109853519 A CN109853519 A CN 109853519A CN 201910088889 A CN201910088889 A CN 201910088889A CN 109853519 A CN109853519 A CN 109853519A
- Authority
- CN
- China
- Prior art keywords
- layer
- substrate
- sandstone
- holding force
- slope
- 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
Landscapes
- Revetment (AREA)
Abstract
The invention discloses the processing structures and processing method of a kind of ladder-like easy-weathering holystone layer substrate ground, solve the problems, such as that the combination degree of the not high accuracy of step slope and sandstone layer and cyclopean concrete is inadequate.It is included under sandstone layer substrate (1) and shale layer and digs to being provided with holding force sandstone layer slope substrate (3) between holding force sandstone layer substrate (2), the slope step (4) that the ratio of width to height is 1:0.75 is provided in holding force sandstone layer slope substrate (3), in sandstone layer substrate (1), pre-inserted reinforced hole (5) are laid in plum blossom-shaped in digging to holding force sandstone layer substrate (2) and slope step (4) under shale layer, pre-inserted reinforcing bar (6) are plugged in pre-inserted reinforced hole (5), the plain concrete layer (7) of 150 millimeters thicks is provided in digging to holding force sandstone layer substrate (2) under shale layer, cyclopean concrete layer (8) are provided on plain concrete layer (7).Ensure ground general stability.
Description
Technical field
The present invention relates to a kind of different height Rock soil Foundation processing structure, in particular to a kind of gradient is between 30-45 degree
The rock-soil layer easily broken up the ground processing structure and processing method that swash.
Background technique
In the civil engineering foundation construction of skyscraper, it is more complicated to encounter construction site formation lithology sometimes, and rock stratum
The non-uniform situation of thickness distribution；When especially existing simultaneously sandstone layer and shale layer in same foundation pit, how substrate is handled
It must be solved the problems, such as scene.When for existing simultaneously sandstone layer and shale layer in same foundation pit, traditional basement process
Method is: first will dig the sandstone layer for arriving holding force under shale layer, forms ramp-like base, the ratio of width to height is used on ramp-like base
It is extended out for the step of 1:0.5, is then backfilled to blinding layer bottom with cyclopean concrete, but in step construction, because sandstone layer is held
Easy-weathering only uses the step slope of 1:0.5, it is difficult to ensure that the accuracy of step slope, cyclopean concrete hold in hardening process
It easily trickles, the combination degree of sandstone layer and cyclopean concrete is not high, and the requirement of ground general stability is not achieved.
Summary of the invention
The present invention provides the processing structures and processing method of a kind of ladder-like easy-weathering holystone layer substrate ground, solve
The technical problem that the accuracy of step slope is not high and the combination degree of sandstone layer and cyclopean concrete is inadequate.
The present invention is to solve the above technical problem by the following technical programs:
The present general inventive concept is: the foundation treatment construction method for adding cyclopean concrete to backfill using pre-inserted reinforcing bar improves not
With the shearing strength between the ground of substrate absolute altitude, guarantee the overall stability of ground, avoids the differential settlement on basis.
A kind of processing structure of ladder-like easy-weathering holystone layer substrate ground, including dug under sandstone layer substrate and shale layer
To holding force sandstone layer substrate, holding force sandstone layer is provided with digging under sandstone layer substrate and shale layer between holding force sandstone layer substrate
Slope substrate is provided with the slope step that the ratio of width to height is 1:0.75, in sandstone layer substrate, mud in the substrate of holding force sandstone layer slope
It is laid with pre-inserted reinforced hole in plum blossom-shaped in digging to holding force sandstone layer substrate and slope step under rock stratum, is inserted in pre-inserted reinforced hole
It is connected to pre-inserted reinforcing bar, is provided with the plain concrete layer of 150 millimeters thicks in digging to holding force sandstone layer substrate under shale layer, it is mixed in element
Cyclopean concrete layer is provided on solidifying soil layer.
The depth of pre-inserted reinforced hole is 1 meter, and height is 1 meter outside the hole of pre-inserted reinforcing bar, and the spacing of pre-inserted reinforced hole is 1.5
Rice；The particle size diameter of rubble is 20-30 centimetres in cyclopean concrete layer, and the spacing between two rubbles in cyclopean concrete layer is not
Less than 100 millimeters, the spacing of rubble and the slope step in the substrate of holding force sandstone layer slope in cyclopean concrete layer is not less than
150 millimeters；The sum of the volume of rubble is less than or equal to the 26% of cyclopean concrete layer total volume in cyclopean concrete layer.
A kind of processing method of ladder-like easy-weathering holystone layer substrate ground, comprising the following steps:
The first step, after excavation of foundation pit is to designed elevation, if there is also shale layers for substrate, shale layer is continued into lower dig to holding force
Sandstone layer is being dug under sandstone layer substrate and shale layer to being formed with holding force sandstone layer slope substrate between holding force sandstone layer substrate；
Second step carries out step slope in holding force sandstone layer slope substrate, because sandstone layer belongs to severely-weathered relatively soft rock, in shape
Complete step surface is not achieved when at step, manually carries out step surface reparation with sledgehammer and iron felt, makes the ratio of width to height of slope step
Reach 1:0.75；
Third step is dug under sandstone layer substrate, shale layer to pre- in plum blossom-shaped laying in holding force sandstone layer substrate and slope step
Reinforced hole is inserted, the spacing of pre-inserted reinforced hole is 1.5 meters, and the aperture of pre-inserted reinforced hole is 50 millimeters, and the depth of pre-inserted reinforced hole is 1
Rice, 2 meters long of pre-inserted reinforcing bar is inserted into pre-inserted reinforced hole, and making height outside the hole of pre-inserted reinforcing bar is 1 meter；
4th step passes through slip casting machine slip casting into pre-inserted reinforced hole, so that pre-inserted reinforcing bar and sandstone layer is gelled integral；
5th step, the plain concrete layer for pouring 150 millimeters thicks in digging to holding force sandstone layer substrate under shale layer；
6th step, in the plain concrete layer of initial set, compartment of terrain arranges rubble of the partial size at 20-30 centimetres, and rubble is uniformly arranged
Column, make rubble it is big downwards, small rubble spacing is not less than 100 millimeters upwardly, on rubble and holding force sandstone layer slope substrate
Slope step spacing be not less than 150 millimeters, pour first layer cyclopean concrete layer, make the top of first layer cyclopean concrete layer
The distance between top surface of rubble is greater than 150 millimeters in face and cyclopean concrete layer；
7th step, initial set first layer cyclopean concrete layer on repeat six steps the step of, formed second layer cyclopean concrete
Layer；So circulation is until fill and lead up design of foundation pit for digging under shale layer to holding force sandstone layer substrate and holding force sandstone layer slope substrate
Until absolute altitude.
Cyclopean concrete of the invention improves the stress intensity between different rock-layers, especially sandstone layer and shale layer, really
Protect ground general stability；Pre-inserted reinforcing bar and cyclopean concrete, which pour, avoids concrete from trickling in hardening process, avoids mixing
Solidifying soil cracking seam, significantly reduces construction cost.
Detailed description of the invention
Fig. 1 is underlying structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of cyclopean concrete layer of the invention；
Fig. 3 is the artwork of pre-inserted reinforcing bar 6 of the invention in foundation pit.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
A kind of processing structure of ladder-like easy-weathering holystone layer substrate ground, including dug under sandstone layer substrate 1 and shale layer to
Holding force sandstone layer substrate 2 is provided with holding force sandstone digging under sandstone layer substrate 1 and shale layer between holding force sandstone layer substrate 2
Layer slope substrate 3, is provided with the slope step 4 that the ratio of width to height is 1:0.75, slope step 4 in holding force sandstone layer slope substrate 3
It is in plum blossom-shaped cloth in digging to holding force sandstone layer substrate 2 and slope step 4 under sandstone layer substrate 1, shale layer for irregular shape
Equipped with pre-inserted reinforced hole 5, it is plugged with pre-inserted reinforcing bar 6 in pre-inserted reinforced hole 5, digs under shale layer to holding force sandstone layer substrate 2
On be provided with the plain concrete layers 7 of 150 millimeters thicks, cyclopean concrete layer 8, cyclopean concrete are provided in plain concrete layer 7
Layer 8 is that layering substep pours completion.
The depth of pre-inserted reinforced hole 5 is 1 meter, and height is 1 meter outside the hole of pre-inserted reinforcing bar 6, and the spacing of pre-inserted reinforced hole 5 is
1.5 rice；The particle size diameter of rubble 9 is 20-30 centimetres in cyclopean concrete layer 8, between two rubbles in cyclopean concrete layer 8
Spacing is not less than 100 millimeters, the slope step 4 on rubble 9 and holding force sandstone layer slope substrate 3 in cyclopean concrete layer 8
Spacing is not less than 150 millimeters；The sum of the volume of rubble 9 is less than or is equal to cyclopean concrete layer totality in cyclopean concrete layer 8
Long-pending 26% keeps rubble fully wrapped around by concrete.
A kind of processing method of ladder-like easy-weathering holystone layer substrate ground, comprising the following steps:
The first step, after excavation of foundation pit is to designed elevation, if there is also shale layers for substrate, shale layer is continued into lower dig to holding force
Sandstone layer is being dug under sandstone layer substrate 1 and shale layer to being formed with holding force sandstone layer slope substrate between holding force sandstone layer substrate 2
3；In Excavation Process, hand fit's excavator carries out earthwork evacuation, when excavating to substrate absolute altitude, manually with broom and
Spade carries out foundation trench cleaning；
Second step carries out step slope in holding force sandstone layer slope substrate 3, because sandstone layer belongs to severely-weathered relatively soft rock,
Complete step surface is not achieved when forming step, manually carries out step surface reparation with sledgehammer and iron felt, keeps the width of slope step 4 high
Than reaching 1:0.75；
Third step is laid in digging to holding force sandstone layer substrate 2 and slope step 4 in plum blossom-shaped under sandstone layer substrate 1, shale layer
Pre-inserted reinforced hole 5, the spacing of pre-inserted reinforced hole 5 are 1.5 meters, and the aperture of pre-inserted reinforced hole 5 is 50 millimeters, pre-inserted reinforced hole 5
Depth is 1 meter, and 2 meters long of pre-inserted reinforcing bar 6 is inserted into pre-inserted reinforced hole 5, and making height outside the hole of pre-inserted reinforcing bar 6 is 1 meter；It is logical
Hair dryer is crossed to clean out aggregate chips in pre-inserted reinforced hole；
4th step passes through slip casting machine slip casting into pre-inserted reinforced hole 5, keeps pre-inserted reinforcing bar 6 and sandstone layer gelling integral；
5th step, the plain concrete layer 7 for pouring 150 millimeters thicks in digging to holding force sandstone layer substrate 2 under shale layer；
6th step, in the plain concrete layer 7 of initial set, compartment of terrain arranges rubble 9 of the partial size at 20-30 centimetres, and rubble 9 is uniform
Arrangement, make rubble it is big downwards, small rubble spacing is not less than 100 millimeters upwardly, rubble and holding force sandstone layer slope substrate
The spacing of slope step 4 on 3 is not less than 150 millimeters, pours first layer cyclopean concrete layer, makes first layer cyclopean concrete layer
Top surface and cyclopean concrete layer in the distance between the top surface of rubble be greater than 150 millimeters, to guarantee to be inserted into vibration therebetween
Stick is made firm by ramming, enables rubble by concrete packet；
7th step, initial set first layer cyclopean concrete layer on repeat six steps the step of, formed second layer cyclopean concrete
Layer；So circulation by digging under shale layer to holding force sandstone layer substrate 2 and holding force sandstone layer slope substrate 3 until filling and leading up foundation pit and setting
Until counting absolute altitude.
Claims (3)
1. a kind of processing structure of ladder-like easy-weathering holystone layer substrate ground, including under sandstone layer substrate (1) and shale layer
It digs to holding force sandstone layer substrate (2), is arranged digging under sandstone layer substrate (1) and shale layer between holding force sandstone layer substrate (2)
There is holding force sandstone layer slope substrate (3), which is characterized in that it is 1 that the ratio of width to height is provided in holding force sandstone layer slope substrate (3):
0.75 slope step (4) is dug under sandstone layer substrate (1), shale layer to holding force sandstone layer substrate (2) and slope step (4)
It is upper to be laid with pre-inserted reinforced hole (5) in plum blossom-shaped, it is plugged with pre-inserted reinforcing bar (6) in pre-inserted reinforced hole (5), is dug under shale layer
It is provided with the plain concrete layer (7) of 150 millimeters thicks on to holding force sandstone layer substrate (2), hairiness is set on plain concrete layer (7)
Stone concrete layer (8).
2. a kind of processing structure of ladder-like easy-weathering holystone layer substrate ground according to claim 1, feature exist
In the depth of pre-inserted reinforced hole (5) is 1 meter, and height is 1 meter outside the hole of pre-inserted reinforcing bar (6), and the spacing of pre-inserted reinforced hole (5) is
1.5 rice；The particle size diameter of rubble (9) is 20-30 centimetres in cyclopean concrete layer (8), two rubbles in cyclopean concrete layer (8)
Between spacing be not less than 100 millimeters, on the rubble (9) and holding force sandstone layer slope substrate (3) in cyclopean concrete layer (8)
The spacing of slope step (4) is not less than 150 millimeters；The sum of the volume of rubble (9) is less than or is equal in cyclopean concrete layer (8)
The 26% of cyclopean concrete layer total volume.
3. a kind of processing method of ladder-like easy-weathering holystone layer substrate ground, comprising the following steps:
The first step, after excavation of foundation pit is to designed elevation, if there is also shale layers for substrate, shale layer is continued into lower dig to holding force
Sandstone layer is being dug under sandstone layer substrate (1) and shale layer to being formed with holding force sandstone layer slope between holding force sandstone layer substrate (2)
Substrate (3)；
Second step carries out step slope in holding force sandstone layer slope substrate (3), because sandstone layer belongs to severely-weathered relatively soft rock,
Complete step surface is not achieved when forming step, manually carries out step surface reparation with sledgehammer and iron felt, makes slope step (4)
The ratio of width to height reaches 1:0.75；
Third step is in plum blossom in digging to holding force sandstone layer substrate (2) and slope step (4) under sandstone layer substrate (1), shale layer
Shape lays pre-inserted reinforced hole (5), and the spacing of pre-inserted reinforced hole (5) is 1.5 meters, and the aperture of pre-inserted reinforced hole (5) is 50 millimeters, in advance
The depth for inserting reinforced hole (5) is 1 meter, and 2 meters long of pre-inserted reinforcing bar (6) is inserted into pre-inserted reinforced hole (5), pre-inserted reinforcing bar is made
(6) height is 1 meter outside hole；
4th step passes through slip casting machine slip casting in pre-inserted reinforced hole (5), so that pre-inserted reinforcing bar (6) and sandstone layer is gelled integral；
5th step, the plain concrete layer (7) for pouring 150 millimeters thicks in digging to holding force sandstone layer substrate (2) under shale layer；
6th step, in the plain concrete layer (7) of initial set, compartment of terrain arranges rubble (9) of the partial size at 20-30 centimetres, by rubble
(9) evenly distributed, make rubble it is big downwards, small rubble spacing is not less than 100 millimeters upwardly, rubble and holding force sandstone layer
The spacing of slope step (4) in slope substrate (3) is not less than 150 millimeters, pours first layer cyclopean concrete layer, makes first layer
The distance between top surface of rubble is greater than 150 millimeters in the top surface of cyclopean concrete layer and cyclopean concrete layer；
7th step, initial set first layer cyclopean concrete layer on repeat six steps the step of, formed second layer cyclopean concrete
Layer；So circulation is until fill and lead up base for digging under shale layer to holding force sandstone layer substrate (2) and holding force sandstone layer slope substrate (3)
Until cheating designed elevation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088889.6A CN109853519A (en) | 2019-01-30 | 2019-01-30 | The processing structure and processing method of ladder-like easy-weathering holystone layer substrate ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088889.6A CN109853519A (en) | 2019-01-30 | 2019-01-30 | The processing structure and processing method of ladder-like easy-weathering holystone layer substrate ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109853519A true CN109853519A (en) | 2019-06-07 |
Family
ID=66897019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910088889.6A Pending CN109853519A (en) | 2019-01-30 | 2019-01-30 | The processing structure and processing method of ladder-like easy-weathering holystone layer substrate ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853519A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849237A (en) * | 1994-08-09 | 1996-02-20 | Kyokado Eng Co Ltd | Slope face covering structure and mat |
| JPH09209371A (en) * | 1996-02-02 | 1997-08-12 | Mitani Sekisan Co Ltd | Method for constructing foundation |
| CN101914918A (en) * | 2010-07-12 | 2010-12-15 | 无锡市政设计研究院有限公司 | High-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure and treatment method thereof |
| CN102677651A (en) * | 2012-04-26 | 2012-09-19 | 北京正和恒基滨水生态环境治理股份有限公司 | Method for ecological restoration of mountain |
| CN103821153A (en) * | 2014-01-10 | 2014-05-28 | 东南大学 | Arsenic sandstone slope treating method |
| CN104404972A (en) * | 2014-12-03 | 2015-03-11 | 重庆大学 | Anchoring structure for strengthening high and steep bedrock-fill interface and construction method |
| CN105236872A (en) * | 2015-06-29 | 2016-01-13 | 河南华泰建材开发有限公司 | Lightweight foam soil applied to roadbed filling of mountainous-area steep road section |
| CN105350988A (en) * | 2015-11-30 | 2016-02-24 | 中国神华能源股份有限公司 | Tunnel base reinforcing method |
| CN105804101A (en) * | 2016-05-16 | 2016-07-27 | 陈静波 | Load-reducing retaining system capable of reducing stress of retaining structure, construction method and applications |
| CN105862897A (en) * | 2016-04-11 | 2016-08-17 | 江苏省华建建设股份有限公司 | Original-groove casting construction method for shallow foundation of sandy mudstone foundation |
| CN209907365U (en) * | 2019-01-30 | 2020-01-07 | 山西三建集团有限公司 | Treatment structure of stepped easily-weathered soft sandstone layer foundation |
-
2019
- 2019-01-30 CN CN201910088889.6A patent/CN109853519A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0849237A (en) * | 1994-08-09 | 1996-02-20 | Kyokado Eng Co Ltd | Slope face covering structure and mat |
| JPH09209371A (en) * | 1996-02-02 | 1997-08-12 | Mitani Sekisan Co Ltd | Method for constructing foundation |
| CN101914918A (en) * | 2010-07-12 | 2010-12-15 | 无锡市政设计研究院有限公司 | High-steep side slope and intensely weathered bed rock solid waste landfill site seepage prevention structure and treatment method thereof |
| CN102677651A (en) * | 2012-04-26 | 2012-09-19 | 北京正和恒基滨水生态环境治理股份有限公司 | Method for ecological restoration of mountain |
| CN103821153A (en) * | 2014-01-10 | 2014-05-28 | 东南大学 | Arsenic sandstone slope treating method |
| CN104404972A (en) * | 2014-12-03 | 2015-03-11 | 重庆大学 | Anchoring structure for strengthening high and steep bedrock-fill interface and construction method |
| CN105236872A (en) * | 2015-06-29 | 2016-01-13 | 河南华泰建材开发有限公司 | Lightweight foam soil applied to roadbed filling of mountainous-area steep road section |
| CN105350988A (en) * | 2015-11-30 | 2016-02-24 | 中国神华能源股份有限公司 | Tunnel base reinforcing method |
| CN105862897A (en) * | 2016-04-11 | 2016-08-17 | 江苏省华建建设股份有限公司 | Original-groove casting construction method for shallow foundation of sandy mudstone foundation |
| CN105804101A (en) * | 2016-05-16 | 2016-07-27 | 陈静波 | Load-reducing retaining system capable of reducing stress of retaining structure, construction method and applications |
| CN209907365U (en) * | 2019-01-30 | 2020-01-07 | 山西三建集团有限公司 | Treatment structure of stepped easily-weathered soft sandstone layer foundation |
Non-Patent Citations (1)
| Title |
|---|
| 赵由才: "《生活垃圾处理与资源化技术手册》", vol. 188, 冶金工业出版社, pages: 188 - 189 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106436596B (en) | A kind of construction method for highway fiberglass sand inclusion pipe culverts | |
| CN106948340B (en) | A kind of construction method of the Manual excavated pile structure of high polymer grouting protection | |
| WO2019169956A1 (en) | Structured cemented gravel pile and construction method therefor | |
| CN101634143A (en) | Method for treating spiral oil-extruding filling pile composite foundation in stratum containing soft clay | |
| CN105569071B (en) | A kind of slip casting under water of cement-based material or mud jacking block ground mass foundation construction | |
| CN106884433A (en) | Control vibrations pile pulling causes the structure of underground structure depression and control depression method | |
| CN102877470B (en) | Combined soil nailing construction method for supporting | |
| CN110847197A (en) | Comprehensive treatment method for loess tunnel entrance section crossing landslide body | |
| CN109487640B (en) | High-speed railway roadbed reinforcing structure in underdrain development area and construction method | |
| CN110306586A (en) | A kind of foundation reinforcement method for traditional architecture | |
| CN107869138A (en) | High roadbed building stones Change and fill groundsill handles construction method | |
| CN107090842A (en) | A kind of processing method of the big thickness collapsible loess foundation in subway station | |
| CN207331740U (en) | A kind of heightening and consolidation structure of in-service reinforced concrete retaining wall | |
| KR20110041391A (en) | Pile structure | |
| CN106013178B (en) | A kind of placement method of shallow buried type Karst surface collapse | |
| CN107816050A (en) | A kind of concrete cofferdam and earth rock cofferdam combined cofferdam and its construction method | |
| CN107059904A (en) | A kind of underground pipe gallery ponding well excavation method | |
| CN113832917A (en) | River course slope protection laying construction method for hydraulic engineering | |
| CN204000848U (en) | A kind of socketed pile for subaqueous construction | |
| CN109853519A (en) | The processing structure and processing method of ladder-like easy-weathering holystone layer substrate ground | |
| CN116289862A (en) | Construction method of soft soil vibroflotation gravel pile composite foundation with upper open mountain layer and lower horizontal soft soil | |
| CN209907365U (en) | Treatment structure of stepped easily-weathered soft sandstone layer foundation | |
| CN106120853B (en) | A kind of inverted construction method of frame bridge | |
| CN111042144B (en) | Excavation method for foundation pit of underground beam under condition of continuous flow of riverway in cold region | |
| CN107165170A (en) | A kind of foundation ditch construction method |
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 |