CN202595725U - Water discharge structure for vacuum preloading soft soil foundation treatment - Google Patents

Water discharge structure for vacuum preloading soft soil foundation treatment Download PDF

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Publication number
CN202595725U
CN202595725U CN 201220248448 CN201220248448U CN202595725U CN 202595725 U CN202595725 U CN 202595725U CN 201220248448 CN201220248448 CN 201220248448 CN 201220248448 U CN201220248448 U CN 201220248448U CN 202595725 U CN202595725 U CN 202595725U
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CN
China
Prior art keywords
water discharge
chimney filter
snap joint
soft soil
vacuum
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.)
Expired - Lifetime
Application number
CN 201220248448
Other languages
Chinese (zh)
Inventor
朱治
刘华锋
施俭
张虎平
陈越
张彦朋
蔡建
刘依
郝思东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI COMMUNICATIONS CONSTRUCTION GENERAL CONTRACTING Ltd
CCCC Shanghai Dredging Co Ltd.
Shanghai Waterway Engineering Design and Consulting Co Ltd
Original Assignee
SHANGHAI COMMUNICATIONS CONSTRUCTION GENERAL CONTRACTING Ltd
CCCC Shanghai Dredging Co Ltd.
Shanghai Waterway Engineering Design and Consulting Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI COMMUNICATIONS CONSTRUCTION GENERAL CONTRACTING Ltd, CCCC Shanghai Dredging Co Ltd., Shanghai Waterway Engineering Design and Consulting Co Ltd filed Critical SHANGHAI COMMUNICATIONS CONSTRUCTION GENERAL CONTRACTING Ltd
Priority to CN 201220248448 priority Critical patent/CN202595725U/en
Application granted granted Critical
Publication of CN202595725U publication Critical patent/CN202595725U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a water discharge structure for vacuum preloading soft soil foundation treatment and aims at providing a water discharge structure adopting vacuum preloading for treating super-soft mud soil. The water discharge structure has the technical scheme that the water discharge structure consists of a vacuum pump, a vacuum pump pipeline, a water discharge plate, a filter pipe, a volute type fast joint or a hinge type fast joint, geotechnical cloth, permeable materials and a sealing film, and is characterized in that the geotechnical cloth is paved on the soft soil surface, the water discharge plate is vertically inserted in the soft soil, the filter pipe is flatly paved on the geotechnical cloth, the exposed plate end of the water discharge plate is connected with the filter pipe through the volute type fast joint or the hinge type fast joint, the permeable materials and the sealing film are paved at the upper part of the filter pipe for forming the under-film sealing, and the vacuum pump pipeline is connected with the filter pipe arranged under the sealing film.

Description

Vacuum pre-pressed soft soil foundation is handled the discharge structure of usefulness
Technical field
The utility model belongs to handles the discharge structure that civil engineering, harbour or waterway engineering, soft foundation in water conservancy project are used.
Background technology
Current, enclose in science and to fill out mud matter beach and carry out in the land development, blowing-filling sludge soil has become main backfilling material.Blowing-filling sludge soil has the characteristics of high-moisture (water content is greater than 80%), high-compressibility, hypotonicity, is fluidised form, and several no intensity belong to super soft weak soil, the engineering properties extreme difference.
For the treatment of soft foundation of blowing-filling sludge soil, main at present vacuum method and the preloading of adopting utilizes band drain to realize the weak soil discharging consolidation as the vertical drainage passage, improves soil strength and bearing capacity of foundation soil.Above-mentioned two kinds of methods all need be provided with horizontal sand cushion on pending soft foundation surface.For the ultra-soft soil of several no intensity, the enforcement difficulty of sand cushion is big, and under the condition of sand material resource scarcity, engineering cost is also higher.
Existing no sand cushion soft base processing method mainly contains combined vacuum and surcharge preloading method and shallow top layer weak soil vacuum method, adopts the vacuum preloading method to handle deep soft soil foundation separately, the horizontal sand cushion deck that still is absolutely necessary.Adopt the combined vacuum and surcharge preloading method to handle, the preloading rate of loading need satisfy the requirement that soil bearing capacity progressively improves.Utilize existing no sand cushion technique of soft soil foundation treatment to handle shallow top layer ultra-soft soil, the bearing capacity level after its processing soft soil is basically at 30 ~ 40kPa.
Summary of the invention
The purpose of the utility model is to propose a kind of discharge structure that adopts vacuum preloading to handle the ultra-soft silt soil, avoids the vacuum preloading soft soil foundation to be supplied the restriction of emery stick spare.
The technical scheme of the utility model is made up of vacuum pump and vacuum pump pipeline, band drain, chimney filter, spirally wound snap joint or hinge type snap joint, geotextiles, seepy material and diaphragm seal; It is characterized in that geotextile laying is on the weak soil surface; Band drain vertically inserts in the weak soil; Chimney filter be tiled in geotextiles above; Band drain exposure wrench is connected with spirally wound snap joint or hinge type snap joint with chimney filter, and seepy material and diaphragm seal formation film lower seal are laid in chimney filter top, and chimney filter is connected under vacuum pump pipeline and the diaphragm seal.
The utility model has the advantages that the sand cushion structure of having cancelled the vacuum preloading soft soil foundation, when guaranteeing the consolidation process effect, avoid the use of sand resource; Band drain and chimney filter adopt snap joint, are having concurrently simple to operately, simultaneously fast, have improved efficiency of construction, have effectively controlled cost of labor, have reduced engineering cost; Adopt the utility model to handle the deep of weak soil and can surpass 20m, handle the groundwork bearing capacity and increase substantially, effectively improved the fixed consolidation effect of ultra-soft soil to 50kPa ~ 80kPa.
Description of drawings
Fig. 1 is that band drain is connected sketch map with chimney filter in the spirally wound snap joint.
Fig. 2 is band drain and a chimney filter connection horizontal generalized section in the spirally wound snap joint.
Fig. 3 is outsourcing in the spirally wound snap joint, colligation geotextiles sketch map.
Fig. 4 is a hinge connector sketch map in the hinge type snap joint.
Fig. 5 is that hinge type snap joint is connected sketch map with band drain with chimney filter.
Fig. 6 is band drain, seepy material and diaphragm seal and chimney filter distribution schematic diagram.
The specific embodiment
The utility model (referring to accompanying drawing) is made up of vacuum pump and vacuum pump pipeline 9, band drain 1, chimney filter 2, snap joint, geotextiles, seepy material 8 and diaphragm seal 7; Geotextile laying is on the weak soil surface, and band drain vertically inserts in the weak soil, and the spacing of band drain can be laid by actual needs; Its optimal spacing is that 60 ~ 120cm, band drain length require to confirm according to the treatment of soft foundation degree of depth; Chimney filter be tiled in geotextiles above, band drain exposure wrench is connected with snap joint with chimney filter, for example spirally wound snap joint or hinge type snap joint 6 connects; When adopting spirally wound snap joint; The band drain of spirally wound snap joint place is tightened with band 3 and chimney filter, and in spirally wound snap joint place outsourcing geotextiles 4 and with colligation 5 colligations of restricting, seepy material is laid in the chimney filter top; For example woven cloth or nonwoven or GSZ and diaphragm seal form the film lower seal, and chimney filter is connected under vacuum pump pipeline and the diaphragm seal.

Claims (4)

1. vacuum pre-pressed soft soil foundation is handled the discharge structure of usefulness; Form by vacuum pump and vacuum pump pipeline, band drain, chimney filter, spirally wound snap joint or hinge type snap joint, geotextiles, seepy material and diaphragm seal; It is characterized in that geotextile laying is on the weak soil surface; Band drain vertically inserts in the weak soil, chimney filter be tiled in geotextiles above, band drain exposure wrench is connected with spirally wound snap joint or hinge type snap joint with chimney filter; Seepy material and diaphragm seal formation film lower seal are laid in chimney filter top, and chimney filter is connected under vacuum pump pipeline and the diaphragm seal.
2. vacuum pre-pressed soft soil foundation according to claim 1 is handled the discharge structure of usefulness, and the spacing that it is characterized in that band drain is 60~120cm.
3. vacuum pre-pressed soft soil foundation according to claim 1 is handled the discharge structure of usefulness, it is characterized in that the band drain of spirally wound snap joint place is tightened with band and chimney filter, in spirally wound snap joint place outsourcing geotextiles and with the colligation colligation of restricting.
4. vacuum pre-pressed soft soil foundation according to claim 1 is handled the discharge structure of usefulness, it is characterized in that the seepy material that lay the chimney filter top is woven cloth or nonwoven or GSZ.
CN 201220248448 2012-05-30 2012-05-30 Water discharge structure for vacuum preloading soft soil foundation treatment Expired - Lifetime CN202595725U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220248448 CN202595725U (en) 2012-05-30 2012-05-30 Water discharge structure for vacuum preloading soft soil foundation treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220248448 CN202595725U (en) 2012-05-30 2012-05-30 Water discharge structure for vacuum preloading soft soil foundation treatment

Publications (1)

Publication Number Publication Date
CN202595725U true CN202595725U (en) 2012-12-12

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ID=47313275

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220248448 Expired - Lifetime CN202595725U (en) 2012-05-30 2012-05-30 Water discharge structure for vacuum preloading soft soil foundation treatment

Country Status (1)

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CN (1) CN202595725U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452094A (en) * 2013-08-19 2013-12-18 河海大学 Low-vacuum providing device of main and auxiliary pumps for water discharging of sludge and operating method of low-vacuum providing device
CN111021332A (en) * 2019-12-13 2020-04-17 诚通凯胜生态建设有限公司 Construction method for soft foundation treatment
CN112878308A (en) * 2021-01-18 2021-06-01 江苏鑫泰岩土科技有限公司 High-load ultralow-position precipitation vacuum preloading method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103452094A (en) * 2013-08-19 2013-12-18 河海大学 Low-vacuum providing device of main and auxiliary pumps for water discharging of sludge and operating method of low-vacuum providing device
CN111021332A (en) * 2019-12-13 2020-04-17 诚通凯胜生态建设有限公司 Construction method for soft foundation treatment
CN111021332B (en) * 2019-12-13 2021-08-10 诚通凯胜生态建设有限公司 Construction method for soft foundation treatment
CN112878308A (en) * 2021-01-18 2021-06-01 江苏鑫泰岩土科技有限公司 High-load ultralow-position precipitation vacuum preloading method

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Granted publication date: 20121212