CN107190729A - A kind of ground heater and application device progress ground heat the construction method of combined vacuum precompressed soft soil foundation - Google Patents
A kind of ground heater and application device progress ground heat the construction method of combined vacuum precompressed soft soil foundation Download PDFInfo
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- CN107190729A CN107190729A CN201710472038.2A CN201710472038A CN107190729A CN 107190729 A CN107190729 A CN 107190729A CN 201710472038 A CN201710472038 A CN 201710472038A CN 107190729 A CN107190729 A CN 107190729A
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- 239000002689 soil Substances 0.000 title claims abstract description 24
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 25
- 229920003023 plastic Polymers 0.000 claims abstract description 22
- 239000004033 plastic Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000007596 consolidation process Methods 0.000 claims abstract description 6
- 239000003673 groundwater Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 239000004744 fabric Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 241000532412 Vitex Species 0.000 claims description 6
- 235000001667 Vitex agnus castus Nutrition 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/103—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by installing wick drains or sand bags
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0053—Production methods using suction or vacuum techniques
Abstract
The invention discloses the construction method that a kind of ground heater and application device progress ground heat combined vacuum precompressed soft soil foundation, vertical plastic draining board is set in ground, vertical plastic draining board wrench is connected on the chimney filter of lateral arrangement, by the port of export of all chimney filters and the inlet communication of pilot part flow arrangement, heater is additionally provided with ground, sand bedding course is equipped with ground, chimney filter is embedded in the sand bedding course, heat-insulation layer is laid on sand bedding course, diaphragm seal is laid on heat-insulation layer, closed vacuum pre-pressing system is formed.During work, pilot part flow arrangement is first turned on, conventional vacuum preloading method stiffening basic ground is carried out；When conventional drainage consolidation proceeds to the later stage, open temperature control heating body and carry out ground heating, and ground is vacuumized simultaneously, by controlling ground heating-up temperature and ground absolute pressure, the moisture content in ground is set to be changed into gaseous state by liquid, so as to further reduce ground water content, strengthen foundation strength.
Description
Technical field
The invention belongs to large-area soft ground processing technology field, particularly a kind of ground heater and using the dress
Put and carry out the construction method that ground heats combined vacuum precompressed soft soil foundation.
Background technology
The outstanding feature of new hydraulic reclamation ultra-soft soil is that surface strength is extremely low, and its basement process is problem generally acknowledged both at home and abroad.It is right
This kind of ground is typically reinforced using draining concretion method, and preloading, vacuum method or vacuum are mainly used in China
Combined heap load precompacting method.But use conventional draining concretion method to reinforce stream mud, the mud scum of new hydraulic reclamation, it is pre- by 3~5 months
Pressure is reinforced, and settlement of foundation is than more significant, and the settling amount for often exceeding theoretical calculation is a lot, but the increased number of intensity after reinforcing
Value is smaller, it is impossible to meet the use requirement of ground.
The content of the invention
Enter it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of ground heater and using the device
Row ground heats the construction method of combined vacuum precompressed soft soil foundation.It is mutually tied by vacuum method with ground heating
Close, the water body in foundation stabilization later stage is mainly discharged in a gaseous form, accelerate soil body discharging consolidation, it is strong after increase foundation stabilization
Degree, reduces settlement after construction, and Foundation Treatment Effect is good.
The present invention is achieved by the following technical solutions：
A kind of ground heater, including steel pipe, steel pipe bottom are taper in order to being inserted into soft soil foundation, steel pipe
Electric heating tube and conduction oil are provided with, steel pipe top is provided with closure, and electric heating tube is connected with current supply line, current supply line
Pass closure, be provided with drag-line on closure, the top of drag-line is draw ring, by drag-line so as to using after finishing by steel pipe
Pull out ground；In use, steel pipe is inserted in soft soil foundation, current supply line connection external power source.
In the above-mentioned technical solutions, steel pipe entire length is 6-10m, can be spliced by plurality of sections of steel pipes.
The construction method that ground heats combined vacuum precompressed soft soil foundation is carried out using above-mentioned ground heater, bag
Include following steps：
Step one：The laying chaste tree basketry layer on place to be processed is needed, the laying establishment cloth on chaste tree basketry layer, and in establishment layer of cloth
Upper laying layer of sand, is used as working cushion layer；
Step 2：Vertical plastic draining board is set in the soil body, plastic draining board is arranged into dot matrix, laid on layer of sand horizontal
To chimney filter, and by the chimney filter of plastic draining board wrench colligation to lateral arrangement；
Step 3：Pilot part flow arrangement is laid, the air entry of pilot part flow arrangement connects vavuum pump, pilot point by pipeline
Flow device water inlet by seal pipeline connect chimney filter the port of export, and by the water inlet of pilot part flow arrangement, sealing pipeline,
Chimney filter and plastic draining board wrench are embedded in layer of sand；
Step 4：Ground heater is laid, the construction depth of the steel pipe of ground heater is consistent with plastic draining board,
Ground heater is arranged into dot matrix；The top draw ring of the drag-line of ground heater is placed on layer of sand surface；
Step 5：Heat-insulation layer is laid on layer of sand, diaphragm seal is laid on heat-insulation layer, pilot part flow arrangement passes through sealing
Film, and to carrying out encapsulation process between pilot part flow arrangement and diaphragm seal, the current supply line of ground heater is filled by membrane
Put extraction diaphragm seal and connect external power source, sealing film edge is treaded in press mold ditch, closed vacuum pre-pressing system is formed；
Step 6：Pilot part flow arrangement is opened, conventional vacuum preloading method stiffening basic ground is carried out；
Step 7：When conventional drainage consolidation proceeds to the later stage, open ground heater and carry out ground heating, and simultaneously
Ground is vacuumized, by controlling ground heating-up temperature and ground absolute pressure, the moisture content in ground is changed by liquid
For gaseous state, vaporous water is collected to layer of sand from ground, and enters chimney filter eventually through pilot part flow arrangement discharge ground, so as to enter
One step reduces ground water content, strengthens foundation strength.
In the above-mentioned technical solutions, in step 7, ground heating-up temperature and ground absolute pressure are carried out according to the following table
Match somebody with somebody, i.e. when ground heating-up temperature is 50 DEG C, ground absolute pressure need to be less than 12.34kPa, then water switchs to gaseous state by liquid；When
When ground heating-up temperature is 55 DEG C, ground absolute pressure need to be less than 15.743kPa, then water switchs to gaseous state by liquid；When ground plus
When hot temperature is 60 DEG C, ground absolute pressure need to be less than 19.923kPa, then water switchs to gaseous state by liquid；When ground heating-up temperature
For 65 DEG C when, ground absolute pressure need to be less than 25.014kPa, then water gaseous state is switched to by liquid；When ground heating-up temperature is 70 DEG C
When, ground absolute pressure need to be less than 31.164kPa, then water switchs to gaseous state by liquid.
| Temperature (DEG C) | 50 | 55 | 60 | 65 | 70 |
| Absolute pressure (kPa) | 12.34 | 15.743 | 19.923 | 25.014 | 31.164 |
In the above-mentioned technical solutions, pilot part flow arrangement, which is preferably provided at, needs the center on place to be processed.
In the above-mentioned technical solutions, temperature detection sensor and absolute pressure detection sensor are provided with ground, so as to
Detect ground heating-up temperature and ground absolute pressure.
The advantages of the present invention are：
1st, ground heater is reasonable in design, is adapted to the heating of deep weak soil ground, and heating effect is good, and it is convenient to lay,
Can also conveniently it reclaim；
2nd, the moisture in plastic draining board channel and the part soil body, in the presence of the raising of vacuum pressure and ground temperature
Gaseous state is converted into, rapid discharge accelerates soil solidifying；
3rd, chimney filter system is embedded in layer of sand, and is laid on layer of sand and lay diaphragm seal on heat-insulation layer, heat-insulation layer, so
Structure on the one hand ensure that the heat-insulating property of ground heating, on the other hand, the moisture of gasification can by layer of sand entering well
Enter chimney filter, and it is last from the discharge of pilot part flow arrangement；
4th, the material in plastic draining board channel is main based on gas, material when being different from draining in passage it is main with
Based on water, pull of vacuum and capillarity are increased, promotes draining, accelerates soil solidifying；
5th, the material in plastic draining board channel is main based on gas, water level reduction, increases the effective stress of soil mass consolidation
Plus, effective reinforced load increase.
In a word, by the present invention, the strengthening quality of weak foundation soil is fully guaranteed.
Brief description of the drawings
Fig. 1 is the structural representation of ground heater.
Fig. 2 is the constructing structure schematic diagram of the present invention.
Fig. 3 is Fig. 2 close-up schematic view.
Fig. 4 is the water inlet structure schematic diagram of pilot part flow arrangement.
Embodiment
Technical scheme is further illustrated with reference to specific embodiment.
Embodiment one：
Referring to accompanying drawing 1, a kind of ground heater, including steel pipe 6.1, steel pipe bottom are that taper is soft in order to be inserted into
Soil base, the entire length of steel pipe 6.1 is 6-10m, can be spliced by plurality of sections of steel pipes by flange 6.2, electricity is provided with steel pipe
Heating tube 6.3 and conduction oil, steel pipe top are provided with closure 6.4, and electric heating tube 6.3 is connected with current supply line 6.5, power supply
Wire passes closure 6.4, is provided with drag-line 6.6 on closure, and the top of drag-line is draw ring 6.7, by drag-line 6.6 so as to
Using steel pipe is pulled out into ground after finishing；In use, current supply line 6.5 draws diaphragm seal by membrane device and connects external electrical
Source.
Embodiment two：
The ground heater of Application Example one carries out the construction that ground heats combined vacuum precompressed soft soil foundation
Method, comprises the following steps：
Step one：Two layers of chaste tree basketry 1 is laid on place to be processed is needed, 250g/m is laid on chaste tree basketry layer2Cloth 2 is worked out,
And the thick medium coarse sands 3 of 40cm are laid on establishment layer of cloth, it is used as working cushion layer；
Step 2：Vertical plastic draining board 4 is set in the soil body, plastic draining board 4 is arranged into dot matrix, on medium coarse sand 3
The horizontal chimney filter of laying, and by the chimney filter 5 of the wrench colligation of plastic draining board 4 to lateral arrangement；
Step 3：Laying pilot part flow arrangement 7, (the pilot part flow arrangement 7 uses Patent No. 201520348699.0
" it is a kind of be suitable for Soft Ground Improved By Vacuum Preloading reinforcing pilot part flow arrangement "), the air entry b of pilot part flow arrangement 7 passes through pipeline
Vavuum pump 10 is connected, the water inlet of pilot part flow arrangement 7 connects the port of export of all chimney filters 5 (referring to attached by sealing pipeline
Fig. 4, pilot part flow arrangement 7 is provided with 6 water inlets), and by the water inlet of pilot part flow arrangement 7, sealing pipeline, the and of chimney filter 5
Plastic draining board wrench is embedded in medium-sand seam 3；
Step 4：Lay ground heater 6, construction depth and the plastic draining board 4 one of the steel pipe of ground heater 6
Cause, the steel pipe of ground heater 6 is arranged into dot matrix；The top draw ring 6.7 of the drag-line of ground heater 6 is placed on medium coarse sand
3 surface of layer；
Step 5：Heat-insulation layer 8 is laid on medium-sand seam 3, diaphragm seal 9, pilot part flow arrangement 7 are laid on heat-insulation layer 8
Through diaphragm seal 9, and to carrying out encapsulation process between pilot part flow arrangement 7 and diaphragm seal 9, the power supply of ground heater 6 is led
Line 6.5 draws diaphragm seal by membrane device and connects external power source, the edge of diaphragm seal 9 is treaded in press mold ditch 11, formation is closed
Formula vacuum prepressing system；
Step 6：Pilot part flow arrangement 7 is opened, conventional vacuum preloading method stiffening basic ground is carried out, water is arranged from discharge outlet c
Go out；
Step 7：When conventional drainage consolidation proceeds to the later stage, (rate of settling is less than 4mm/d or the drain outlet of vavuum pump 10
Water yield be less than 1.6m3After/h), open ground heater 6 and carry out ground heating, and ground is vacuumized simultaneously,
By controlling ground heating-up temperature and ground absolute pressure, moisture content in ground is set to be changed into gaseous state by liquid, vaporous water is from ground
Be collected in base medium-sand seam 3 (after the moisture vaporization in ground, be preferentially collected to medium-sand seam upwards from plastic draining board,
Foundation soil body can be directed through and be collected to medium-sand seam upwards), and enter chimney filter eventually through pilot part flow arrangement discharge ground,
So as to further reduce ground water content, strengthen foundation strength.
In step 7, ground heating-up temperature and ground absolute pressure are matched according to table 1, for example, when ground heating
When temperature is 60 DEG C, ground absolute pressure need to be less than 19.923kPa, then water switchs to gaseous state by liquid.In practice of construction, ground
The minimum absolute pressure that can be reached is 10kPa or so, and the maximum heating temperature that ground can reach is 70 degree or so, so real
In the construction of border, ground heating-up temperature and ground absolute pressure are matched according to table 2.
Shown by engineering practice, when ground heating-up temperature is 60 degree, ground absolute pressure is (about every when being 19.923kPa
5000m27.5kw vavuum pump is configured, ensure that ground absolute pressure is 19.923kPa), comprehensive energy consumption is minimum, ground
It is best that base reinforces efficiency.
The relation of the steam-laden vapour pressure of table 1 and temperature
| Temperature (DEG C) | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 |
| Absolute pressure (kPa) | 4.2474 | 5.6207 | 7.3766 | 9.5837 | 12.34 | 15.743 | 19.923 | 25.014 |
| Temperature (DEG C) | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 |
| Absolute pressure (kPa) | 31.164 | 38.551 | 47.379 | 57.875 | 70.136 | 84.556 | 101.33 | 120.85 |
The relation of the steam-laden vapour pressure of table 2 and temperature
| Temperature (DEG C) | 50 | 55 | 60 | 65 | 70 |
| Absolute pressure (kPa) | 12.34 | 15.743 | 19.923 | 25.014 | 31.164 |
In the above-mentioned technical solutions, temperature detection sensor and absolute pressure detection sensor are provided with ground, so as to
Detect ground heating-up temperature and ground absolute pressure；
In the above-mentioned technical solutions, heat-insulation layer using polyurethane material warming plate as heat-insulation layer, thermal conductivity factor≤
0.024W/(m.K)；
In the above-mentioned technical solutions, plastic draining board uses exotic material, during 100 degree of temperature, and longitudinal flowing water measuring >=
30cm3/ s, Testing Tensile Strength at Elevated Temperature requirement >=1.6kN/10cm of composite plate, filter cloth osmotic coefficient k20>5.0×10-3cm/s；
In the above-mentioned technical solutions, chimney filter is coated with filter cloth, and chimney filter uses exotic material, and ring is met during 100 DEG C of temperature
Rigidity >=6kN/m2, water permeable area >=2500mm2/ m, filter cloth osmotic coefficient k20For 10-1~10-3cm/s；
In the above-mentioned technical solutions, sealing pipeline uses exotic material, and ring stiffness >=6KN/m is met during 100 DEG C of temperature2
Requirement；
In the above-mentioned technical solutions, diaphragm seal uses exotic material, and 100 DEG C of tensile strength of temperature are more than 16.5MPa, oozed
Saturating coefficient≤5 × 10-11cm/s。
Exemplary description is done to the present invention above, it should explanation, in the situation for the core for not departing from the present invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent substitution of creative work equal
Fall into protection scope of the present invention.
Claims (6)
1. a kind of ground heater, it is characterised in that：Including steel pipe, steel pipe bottom is taper in order to being inserted into weak soil
Electric heating tube and conduction oil are provided with base, steel pipe, steel pipe top is provided with closure, and electric heating tube is connected with power supply and led
Line, current supply line passes closure, is provided with drag-line on closure, and the top of drag-line is draw ring, by drag-line to use
Steel pipe is pulled out into ground after finishing.
2. ground heater according to claim 1, it is characterised in that：Steel pipe entire length is 6-10m, by more piece steel
Pipe is spliced.
3. the ground heater described in application claim 1 carries out applying for ground heating combined vacuum precompressed soft soil foundation
Work method, it is characterised in that comprise the following steps：
Step one：The laying chaste tree basketry layer on place to be processed is needed, the laying establishment cloth on chaste tree basketry layer, and on establishment layer of cloth upper berth
If layer of sand, working cushion layer is used as；
Step 2：Vertical plastic draining board is set in the soil body, plastic draining board is arranged into dot matrix, laterally filter is laid on layer of sand
Pipe, and by the chimney filter of plastic draining board wrench colligation to lateral arrangement；
Step 3：Pilot part flow arrangement is laid, the air entry of pilot part flow arrangement connects vavuum pump, pilot shunting dress by pipeline
The water inlet put by seal pipeline connect chimney filter the port of export, and by the water inlet of pilot part flow arrangement, sealing pipeline, chimney filter
It is embedded in plastic draining board wrench in layer of sand；
Step 4：Ground heater is laid, the construction depth of the steel pipe of ground heater is consistent with plastic draining board, ground
Heater is arranged into dot matrix；The top draw ring of the drag-line of ground heater is placed on layer of sand surface；
Step 5：Heat-insulation layer is laid on layer of sand, diaphragm seal is laid on heat-insulation layer, pilot part flow arrangement passes through diaphragm seal, and
To carrying out encapsulation process between pilot part flow arrangement and diaphragm seal, the current supply line of ground heater is drawn by membrane device
Diaphragm seal simultaneously connects external power source, and sealing film edge is treaded in press mold ditch, closed vacuum pre-pressing system is formed；
Step 6：Pilot part flow arrangement is opened, conventional vacuum preloading method stiffening basic ground is carried out；
Step 7：When conventional drainage consolidation proceeds to the later stage, open ground heater and carry out ground heating, and over the ground simultaneously
Base is vacuumized, and by controlling ground heating-up temperature and ground absolute pressure, the moisture content in ground is changed into gas by liquid
State, vaporous water is collected to layer of sand from ground, and enters chimney filter eventually through pilot part flow arrangement discharge ground, so that further
Ground water content is reduced, strengthens foundation strength.
4. construction method according to claim 3, it is characterised in that：In step 7, ground heating-up temperature and ground are exhausted
Pressure is carried out according to the following table matching, i.e. when ground heating-up temperature is 50 DEG C, ground absolute pressure need to be less than 12.34kPa,
Then water switchs to gaseous state by liquid；When ground heating-up temperature be 55 DEG C when, ground absolute pressure need to be less than 15.743kPa, then water by
Liquid switchs to gaseous state；When ground heating-up temperature is 60 DEG C, ground absolute pressure need to be less than 19.923kPa, then water is turned by liquid
For gaseous state；When ground heating-up temperature is 65 DEG C, ground absolute pressure need to be less than 25.014kPa, then water switchs to gaseous state by liquid；
When ground heating-up temperature is 70 DEG C, ground absolute pressure need to be less than 31.164kPa, then water switchs to gaseous state by liquid.
5. construction method according to claim 3, it is characterised in that：Pilot part flow arrangement is preferably provided at need to be to be processed
Center on place.
6. construction method according to claim 3, it is characterised in that：Temperature detection sensor is provided with ground and absolute
Pressure detection sensor, to detect ground heating-up temperature and ground absolute pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472038.2A CN107190729A (en) | 2017-06-20 | 2017-06-20 | A kind of ground heater and application device progress ground heat the construction method of combined vacuum precompressed soft soil foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472038.2A CN107190729A (en) | 2017-06-20 | 2017-06-20 | A kind of ground heater and application device progress ground heat the construction method of combined vacuum precompressed soft soil foundation |
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| CN107190729A true CN107190729A (en) | 2017-09-22 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740403A (en) * | 2017-10-31 | 2018-02-27 | 中交天津港湾工程研究院有限公司 | A kind of heating consolidation construction method of vertical drainage chimney filter in-built electrical hot pin |
| CN109914385A (en) * | 2019-03-22 | 2019-06-21 | 黄虎 | A kind of method of hydraulic structure treatment of soft foundation |
| CN110523759A (en) * | 2019-08-01 | 2019-12-03 | 湖南恒凯环保科技投资有限公司 | Equipment for the thermal desorption reparation of organic polluted soil original position |
| CN110939121A (en) * | 2019-12-31 | 2020-03-31 | 中交天津港湾工程研究院有限公司 | Drainage consolidation construction method combining hot water pipe and plastic drainage plate |
| CN112281807A (en) * | 2020-09-27 | 2021-01-29 | 江苏鑫泰岩土科技有限公司 | Pressurizing heat-sensitive vaporization phase-change consolidation method and heat-desensitization intermittent evaporator thereof |
| CN114197442A (en) * | 2021-11-29 | 2022-03-18 | 中交（天津）生态环保设计研究院有限公司 | Environment-friendly efficient dehydration drying method for dredged ultra-soft soil |
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| CN204753566U (en) * | 2015-05-26 | 2015-11-11 | 中交天津港湾工程研究院有限公司 | It presses diverging device to be suitable for leading of vacuum pre -compaction foundation stabilization |
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| CN207032214U (en) * | 2017-06-20 | 2018-02-23 | 天津大学 | A kind of ground heater |
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| US20040228689A1 (en) * | 2003-05-15 | 2004-11-18 | Stegemeier George L. | Soil remediation with heated soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20170922 |