Luận văn thạc sĩ Địa kỹ thuật xây dựng: Phân tích ổn định công trình kè trên đất yếu ở huyện Kế Sách, tỉnh Sóc Trăng

ĈҤ,+Ӑ&48Ӕ&*,$73+Ӗ&+Ë0,1+

75ѬӠ1*ĈҤ,+Ӑ&%È&+.+2$

1*8<ӈ1ĈӬ&7+ӎ1+

3+Æ17Ë&+Ә1Ĉӎ1+&Ð1*75Î1+.Ê75Ç1ĈҨ7<ӂ8Ӣ+8<ӊ1.ӂ6È&+7ӌ1+6Ï&75Ă1*

Chuyên ngành: ĈӏDNӻWKXұW[k\GӵQJ 0mVӕ60 58 02 11

/8Ұ19Ă17+Ҥ&6Ƭ

73+Ӗ&+Ë0,1+WKiQJ QăP8

Xác nhұQ cӫD Chӫ tӏFK hӝL ÿӗQJ ÿiQK giá OXұQYăQYà TrѭӣQJ khoa quҧQ lý chuyên ngành sau khi luұQ văn ÿm ÿѭӧF sӱD chӳD (nӃX có)

+ӑWrQYjFKӳNê +ӑWrQYjFKӳNê

PGS TS Võ Phán 76/r$QK7XҩQ

ĈҤ,+Ӑ&48Ӕ&*,$73+&0 &Ӝ1*+2¬;­+Ӝ,&+Ӫ1*+Ƭ$9,ӊ71$0TRѬӠ1*ĈҤ,+Ӑ&%È&+.+2$ ĈӝFlұS- 7ӵdo - +ҥQKphúc

1+,ӊ09Ө/8Ұ19Ă17+Ҥ&6Ƭ

+ӑYjWrQKӑFYLrQ: 1*8<ӈ1ĈӬ&7+ӎ1+ MSHV: 1670179 Ngày, tháng, năm sinh: 15/08/1990 Nѫi sinh: 6yF7UăQJ &KX\rQQJjQKĈӎ$.Ӻ7+8Ұ7;Æ<'Ӵ1* Mã ngành: 60 58 02 11

1 TÊN Ĉӄ 7¬,: 3+Æ1 7Ë&+ Ә1 Ĉӎ1+ &Ð1* 75Î1+ Ê 75Ç1 ĈҨ7

<ӂ8Ӣ+8<ӊ1.ӂ6È&+7ӌ1+6Ï&75Ă1*(Analysing stability of jetty

construction on soft soil in Ke Sach district, Soc Trang province)

1+,ӊ09Ө/8Ұ19ĂN:

- 0{SKӓQJÿiQKJLiNKҧQăQJәQÿӏQKF{QJWUuQKWURQJÿLӅXNLӋQOjPYLӋFÿӗQJWKӡLFӫDFӑFYjEҧQErW{QJFӕWWKpSEҵQJSKҫQPӅP3OD[LV2D

- Phân tích ÿiQK JLi NKҧ QăQJ әQ ÿӏQK FӫD F{QJ WUuQK WKHR FiF SKѭѫQJ iQWKLӃWNӃ

- ĈӅQJKӏSKѭѫQJiQEәVXQJQKҵPÿҧPEҧRVӵOjPYLӋFәQÿӏQKFӫDF{QJtrình

/Ӡ,&Ҧ0Ѫ1

FKRW{LOzQJÿDPPrQJKLrQFӭXNKRDKӑFPGS.76%L7UѭӡQJ6ѫQ

7{LFNJQJ[LQJӱLOӡLFҧPѫQÿӃQTXêWKҫ\F{EӝP{QĈӏDCѫ1ӅQ0yQJQKӳQJQJѭӡLÿmWUX\ӅQÿҥWFKRW{LKLӇXÿѭӧFSKѭѫQJSKiSWLӃSFұQYjJLҧLTX\ӃWYҩQÿӅPӝWFiFKNKRDKӑFÿk\OjKjQKWUDQJTXêJLiPjW{LVӁOX{QJuQJLӳVDXNKLUDWUѭӡQJYjOjPYLӋF

&XӕLFQJ[LQFҧPѫQJLDÿuQKYjEҥQEqÿmÿӝQJYLrQJL~SÿӥW{LWURQJWKӡLJLDQKӑFWұSYjOjPOXұQYăQWӕWQJKLӋSYӯDTXD

7UkQWUӑQJ

+ӑFYLrQ

1JX\ӉQĈӭF7KӏQK

7Ï07Ҳ7

3KkQWtFK͝Qÿ͓QKF{QJWUuQKNqWUrQÿ̭W\͇XͧKX\͏Q.͇6iFK W͑QK6yF7UăQJ

+LӋQ QD\ QKLӅX F{QJ WUuQK Nq Eӏ VҥW Oӣ trong quá trình thi công do nhLӅX QJX\rQ QKkQ 7URQJÿyFy QJX\rQ QKkQ TXDQ WUӑQJ OjFӑF FKѭD FҳPTXD NKӓLFXQJWUѭӧWFӫDNqKD\NK{QJÿӫNKҧQăQJÿӇJLӳNKӕLÿҩWÿҳSWURQJÿLӅXNLӋQFyWiFÿӝQJFӫDiSOӵFQJDQJFӫD NKӕLÿҳSVDXWѭӡQJJk\FKX\ӇQYӏQJDQJOӟQGRJҫQEӅPһWFyFiFOӟSÿҩW\ӃX

7URQJÿӅWjLYLӋFSKkQWtFKFiFSKѭѫQJiQWKLӃWNӃFӫDF{QJWUuQKNqWKӵFWӃÿѭӧFWKӵFKLӋQEҵQJP{SKӓQJ.ӃWTXҧFKRWKҩ\FKX\ӇQYӏQJDQJNKiOӟQFyWKӇJk\PҩWәQÿӏQKWәQJWKӇFӫDF{QJWUuQK9LӋFSKkQWtFKFzQFKRWKҩ\QӃXKҥQFKӃYLӋFÿjRVkXFNJQJQKѭKҥQFKӃFKLӅXFDRÿҳSWKuF{QJWUuQKVӁәQÿӏQKKѫQ

In the subject, the analysis of design projects of jetty construction is performed by simulation The result shows that a major horizontal displacement can cause overall instability of the working The analysis also shows that if you restrict deep digging as well as limiting the height, the work will be more stable

LӠ,&$0Ĉ2$1

7{L[LQFDPÿRDQÿk\OjF{QJWUuQKQJKLrQFӭu cӫa riêng tôi

Các sӕ liӋu, kӃt quҧ nêu trong luұQYăQOjWUXQJWKӵFYjFKѭDWӯQJÿѭӧc ai công bӕ trong bҩt kǤ công trình nào khác

7iFJLҧ

1JX\ӉQĈӭF7KӏQK

&iFGҥQJWҧLWUӑQJYjSKkQORҥLWҧLWUӑQJ 14

&iFGҥQJWҧLWUӑQJ 14

3KkQORҥLWҧLWUӑQJ 14

*LӟLWKLӋXF{QJWUuQK\rXFҫXWKLӃWNӃ 37

*LӟLWKLӋXF{QJWUuQK 37

<rXFҫXWKLӃWNӃ 37 7tQKWRiQFҩXNLӋQF{QJtrình kè 47  0{ SKӓQJ ÿiQK JLi NKҧ QăQJ әQ ÿӏQK Eӡ Nq FKӕQJ VҥW Oӣ NKX YӵF OӉ KӝL WUX\ӅQWKӕQJV{QJQѭӟFPLӋWYѭӡQKX\ӋQ.ӃSách theo mô hình 2D 49 .ӂ7/8Ұ19¬.,ӂ11*+ӎ 78 7¬,/,ӊ87+$0.+Ҧ2 79

MӢ ĈҪU

éQJKƭDNKRDKӑFYjWKӵFWLӉQFӫDÿӅtài

'RKLӋQWѭӧQJVҥWOӣYjNKDLWKiFFiWWUrQV{QJQrQKuQKGҥQJYjNtFKWKѭӟFEӡGӉEӏWKD\ÿәLÿһFELӋWӣNKXYӵFFyFҩXWҥRÿӏDFKҩWlà ÿҩW\ӃXQKѭ6yF7UăQJYj PӝW Vӕ NKX YӵF ӣ ÿӗQJ EҵQJ 6{QJ &ӱX /RQJ Ĉ%6&/  q Oj PӝW WURQJQKӳQJJLҧLSKiSF{QJWUuQKKӧSOêYjEӅQYӳQJÿӇWUiQKFiFKLӋQWѭӧQJVҥWOӣYjJLӳәQÿӏQKEӡ

9LӋFWtQKWRiQWKLӃWNӃORҥLKuQKF{QJWUuQKQj\WKѭӡQJFKӍJLӟLKҥQWURQJYLӋFÿiQKJLiiSOӵFÿҩWOrQWѭӡQJNqYjNKҧQăQJәQÿӏQKWUѭӧW 7URQJWKӵFWӃӭQJ[ӱiSOӵFÿҩWOrQWѭӡQJNqFyQKӳQJÿLӇPNKiFELӋWGRWUҥQJWKiLӭQJVXҩWEDQÿҫX1JRjLUDYLӋFVDQOҩSÿҩWVDXOѭQJWѭӡQJWUrQQӅQÿҩW\ӃXFyWKӇJk\O~QYjiSOӵFÿҩWEәVXQJOrQNqFyWKӇJk\FKX\ӇQYӏYjPҩWәQÿӏQKF{QJWUuQK

&ăQFӭYjRÿLӅXNLӋQÿӏDFKҩWFөWKӇӣNKXYӵF6yF7UăQJWtQKWRiQYjP{SKӓQJÿiQKJLiJLҧLSKiSWKLӃWNӃYj[ӱOêQӅQKӧSOêFKRF{QJWUuQKNqWUrQÿҩW\ӃXӢÿk\YLӋFWtQKWRiQÿiQKJLiӭQJ[ӱFӫDF{QJWUuQKFy[pWÿӃQVӵOjPYLӋFÿӗQJWKӡLFӫDFic FҩXNLӋQYjSKkQWtFKOjPU}YDLWUzWӯQJFҩXNLӋQULrQJELӋW ĈӝO~QYjÿӝO~QWKHRWKӡLJLDQFӫDQӅQÿҩW\ӃXNKXYӵFVDXNqÿyQJYDLWUzTXDQWUӑQJWURQJYLӋFÿҧPEҧRNKҧQăQJOjPYLӋFәQÿӏQKFӫDF{QJWUuQKFNJQJOjYҩQÿӅTXDQWkPWtQKWRiQ

&iFNӃWTXҧWtQKWRiQYjSKkQWtFKFKRSKpSU~WUDFiFQKұQÿӏQKFytFKYӅJLҧLSKiSWKLӃWNӃYjNLQKQJKLӋPFKRORҥLKuQKF{QJWUuQKÿһFELӋWQj\ӣNKXYӵFÿҩW\ӃXQKѭӣ6yF7UăQJĈLӅXQj\FyêQJKƭDWKӵFWLӉQWURQJF{QJWiF[k\GӵQJFKRÿӏDSKѭѫQJ

0өFÿtFKFӫDÿӅWjL

7UrQFѫVӣSKѭѫQJSKiSSKҫQWӱKӳXKҥQWKӵFKLӋQP{SKӓQJÿiQKJLiWUҥQJWKiLӭQJVXҩWELӃQGҥQJFӫDF{QJWUuQKNqYHQV{QJWUrQÿҩW\ӃX9LӋFSKkQWtFKWKӵFKLӋQFy[pWÿӃQFiF\ӃXWӕWUuQKWӵWKLF{QJYjVӵWKD\ÿәLWUҥQJWKiLӭQJVXҩW

ELӃQGҥQJWKHRWKӡLJLDQGRTXiWUuQKFӕNӃWWKҩP9LӋFP{SKӓQJÿѭӧFWKӵFKLӋQQKӡVӵWUӧJL~SFӫDSKҫQPӅP3OD[LVWUrQFѫVӣP{KuQKEjLWRiQ2D

0өFÿtFKFӫDYLӋFSKkQWtFKEDRJӗPÿiQKJLiNKҧQăQJәQÿӏQKWәQJWKӇFӫDF{QJWUuQKYjVӵWKD\ÿәLFӫDFK~QJWKHRWKӡLJLDQSKkQWtFKVRViQKYӟLFiFNӃWTXҧWtQKWRiQWKLӃWNӃNKL[HPOӵFWiFGөQJOrQKӋFӑFOjOӵFWұSWUXQJWKD\YuiSOӵFGRNKӕLÿҩWVDXWѭӡQJ

3KѭѫQJSKiSQJKLrQFӭX

-0{SKӓQJEҵQJSKҫQPӅPWUrQFѫVӣSKѭѫQJSKiSSKҫQWӱ KӳXKҥQ QKҵPÿiQKJLiNKҧQăQJәQÿӏQKWәQJWKӇF{QJWUuQK

- ӃWTXҧSKkQWtFKVRViQKFiFNӃWTXҧWtQKWRiQQKҵPU~WUDFiFQKұQÿӏQKYӅSKѭѫQJSKiSWtQKKӧSOêFNJQJQKѭWtQKKӧSOêWURQJFKӑQOӵDFiFFҩXNLӋQF{QJtrình

&+ѬѪ1*7Ә1*48$11*8<Ç11+Æ19¬*,Ҧ,3+È3 &+Ӕ1*6Ҥ7/Ӣ&+2&Ð1*75Î1+9(16Ð1*+,ӊ11$<

1JX\rQQKkQGүQÿӃQVҥWOӣӣNKXYӵFĈ%6&/KLӋQQD\

+LӋQWѭӧQJVҥWOӣEӡV{QJӣNKXYӵFÿӗQJEҵQJV{QJ&ӱX/RQJOjGRUҩWQKLӅXQJX\rQQKkQNKiFQKDXJk\UDWURQJÿyFyQJX\rQQKkQGRWӵQKLrQYjFҧFiFQJX\rQQKkQGRFRQQJѭӡLJk\UD1KuQFKXQJKLӋQWѭӧQJVҥWOӣWUrQOjGRFiFQJX\rQQKkQFKӫ\ӃXVDXÿk\

'RÿӏDFKҩWYQJEӡ

ĈӏDFKҩWEӡV{QJOjPӝWWURQJQKӳQJ \ӃXWӕTX\ӃWÿӏQKÿӃQVӵ[yLOӣEӡ.ӃWTXҧNKҧRFKҩWFKRWKҩ\ ÿLDFKҩWFiFOӟSÿҩWEӡV{QJFKӫ\ӃXOjEQKӳXFѫEQVpWYӟLWUҥQJWKiLFKҧ\GҿRFKҧ\YjGҿRPӅP9ӟLFҩXWҥRÿӏDFKҩWQKѭWUrQWKuEӡV{QJUҩWGӉEӏ[yLOӣGѭӟLWiFÿӝQJFӫDQJRҥLOӵFYjFiF\ӃXWӕWiFÿӝQJkhác

1.1.2 Do WKӫ\WULӅu

.KXYӵFÿӗQJEҵQJV{QJ&ӱX/RQJFiFKELӇQ7k\trung bình NKRҧQJNPEӣLYұ\V{QJFKӏXҧQKKѭӣQJFӫDWKXӹWULӅXNKiU}UӋW&KӃÿӝWKXӹWULӅXӣÿk\OjQKұW WULӅX YӟL  OҫQ OrQ [XӕQJ WURQJ QJj\ 'ѭӟL WiF ÿӝQJ FӫD GzQJ WKҩP NKLQѭӟFGkQJ Yj U~W FiFKҥWEQÿҩW EӡV{QJ VӁEӏFXӕQUD QJRjL YjÿѭӧFGzQJQѭӟFPDQJÿLJk\KLӋQWѭӧQJ[yLOӣ

'RҧQKKѭӣQJEӣLONJ

/NJ FNJQJ Oj PӝW WURQJ QKѭQJ QJX\rQ QKkQ Jk\ [yL Oӣ GѭӟL WiF ÿӝQJ FӫDGzQJFKҧ\ONJFiFKҥWEQÿҩWWҥLEӡV{QJVӁEӏFXӕQWU{LJk\KLӋQWѭӧQJ[yLOӣDòng cKҧ\ONJWҥLFiFV{QJPLӅQ7k\1DPNK{QJTXiOӟQYj[ҧ\UDYӟLWҫQVXҩWKLӃPQKѭQJGѭӟLWiFÿӝQJNӃWKӧSFӫDGzQJFKҧ\ONJYjVyQJWjXWKuWӕFÿӝVҥWOӣEӡVӁ[ҧ\UDYӟLPӭFÿӝUҩWOӟQ

'RKRҥWÿӝQJFӫDWjXWKX\ӅQ

ĈӗQJEҵQJV{QJ&ӱX/RQJFyKӋWKӕQJJLDRWK{QJWKXӹUҩWSKiWWULӇQYӟLÿӝLJKHYұQWҧLFyTX\P{OӟQPұWÿӝWjXWKX\ӅQOѭXWK{QJWUrQV{QJOX{QGj\ÿһFYӟLFiFWjXYұQFKX\ӇQKjQJKRiWҧLWUӑQJOӟQ'ѭӟLWiFÿӝQJFӫDVyQJWjXOӟSÿҩW\ӃXWҥLEӡV{QJVӁEӏ[yLOӣPӭFÿӝVҥWOӣWXǤWKXӝFYjR ÿӝPҥQK\ӃXFӫDVyQJVyQJWjXFjQJOӟQWKuPӭFÿӝ[yLOӣFjQJOӟQÿһFELӋWÿӕLYӟLVyQJFӫDFiFWjXYұQWҧLOӟQFKҥ\ViWEӡV{QJ

'RKRҥWÿӝQJNKiFFӫDFRQQJѭӡL

+RҥWÿӝQJFӫDFRQQJѭӡLFNJQJFyҧQKKѭӣQJQKҩWÿӏQKÿӃQVӵ[yLOӣEӡNKXYӵFQj\6ӵNKDLWKiFKӋVLQKYұWWUrQV{QJOҩQFKLӃPEӡV{QJOzQJV{QJOjPWKXKҽSPһWFҳWѭӟWFӫDGzQJFKҧ\1JRjLUDWuQKWUҥQJ[k\GӵQJÿrEDRWUjQODQWUrQFiFV{QJWKѭӧQJQJXӗQOjPWKD\ÿәLFiFFKӃÿӝWKXӹÿӝQJOӵFKӑFFӫDGzQJFKҧ\FNJQJOjQJX\rQQKkQJk\UDVӵ[yLOӣQj\

0ӛLQJX\rQ QKkQtWQKLӅXÿӅXFyYDLWUzWURQJVӵ[yLOӣEӡV{QJÿӕLYӟLWX\ӃQV{QJWUrQÿӗQJEҵQJV{QJ&ӱX/RQJTXDÿLӅXWUDWҥLNKXGkQFѭYHQV{QJWKҩ\UҵQJKLӋQWѭӧQJ[yLOӣ[ҧ\UDPҥQKPӁQKҩWWURQJPDPѭDONJEӣLYұ\FyWKӇNKҷQJÿӏQKQJX\rQQKkQFKtQKJk\UDVӵ[yLOӣEӡV{QJOjGRVyQJYjGzQJFKҧ\ONJNӃWKӧSÿӏDFKҩWNKi\ӃXWҥLNKXYӵFÿӗQJEҵQJV{QJ&ӱX/RQJ

Hình 1.1 +LӋQWѭӧQJOҩQFKLӃPEӡV{QJNKiSKәELӃQ

&iFJLҧLSKiSFKӕQJVҥWOӣWKѭӡQJOjPӣĈ%6&/KLӋQQD\ 5ӑÿi

5ӑÿi*DELRQ KD\WKҧPÿi5HYHW0DWWUHVVHVKD\5HQRPDWWUHVVHV QKѭPӝWFiLKӝSKuQKNKӕLPjӣÿyFK~QJWDFyWKӇEӓÿiYjRÿӇVӱGөQJJLDFӕFKRcác công trìnK&K~QJOjFiFKӋWKӕQJKuQKOѭӟLFyOLrQNӃWWKjQKFiFNKӕLKuQKKӑFYjSKtDWURQJOjÿi[ӃSFҩXWҥRUӑÿiWKѭӡQJNKiÿѫQJLҧQ

Hình 1.2 &ҩXWҥRUӑÿi

Hình 1.3 7KҧPÿi

/ӏFKVӱFKRWKҩ\WӯUҩWOkXÿӡLQJѭӡLWDÿmVӱGөQJFiFUӑÿiÿӇWҥRQrQFiFNKӕLOLrQNӃWOjPFiFÿѭӡQJQJҫPTXDV{QJYjFKӕQJ[yLOӣNKXYӵFPӕFҫX

1Jj\QD\UӑÿiYjWKҧPÿiFKӫ\ӃXÿѭӧFOjPEҵQJ WKpSFyPҥNӁPKRһFQK{P NӁP SKҫQ OӟQ ÿѭӧF WUiQJ SKӫ PӝW OӟS QKӵD ErQ QJRjL ÿӇ JLҧP FiF WiFÿӝQJ[kPWKӵFăQPzQFӫDP{LWUѭӡQJYӟLO}LWKpSErQWURQJ0ӝWVӕF{QJWUuQKăQPzQÿһFELӋWUӑÿiYjWKҧPÿiÿѭӧFOjPKRjQWRjQEҵQJKӧSFKҩWSRO\PHUYuFK~QJFyÿһFWtQKWUѫYѭӧWWUӝLGѭӟLWiFÿӝQJăQPzQVRYӟLFiFYұWOLӋXNKiF

5ӑÿiÿѭӧFGQJ FKӫ\ӃXFKRFiFF{QJWUuQKVDX: - 7ѭӡQJFKҳQÿҩWPӕFҫX

- &KӕQJ[yLEӡV{QJELӇQ - /iWPiLYjÿi\NrQK - %ҧRYӋPiLÿrNq

- ĈұSWUjQEұFQѭӟFGӕFQѭӟF

1.2.2&ӯYiQErW{QJGӵӭQJOӵF

&iFK ÿk\ KѫQ  QăP 7ұS ÿRjQ 36 0,768%,6+, 1KұW %ҧQ  ÿm SKiWPLQKUDORҥL³FӑFYiQ%7&7GӵӭQJOӵF´YӟLNLӇXGiQJKuQKKӑFGҥQJVyQJFӫDPһWFҳWWLӃWGLӋQYjÿmÿѭӧF[k\GӵQJWKӱQJKLӋPUҩWFyKLӋXTXҧӣ1KұWWURQJQKLӅXQăPTXD

Hình 1.4 &ӑFYiQErW{QJGӵӭQJOӵF

&ӑF YiQ Er W{QJ Gӵ ӭQJ OӵF (PC) ÿѭӧF ӭQJ GөQJ YjR 9LӋW 1DP QăP1999-WҥLFөPF{QJWUuQKQKLӋWÿLӋQ3K~0ӻ- WӍQK%j5ӏD9NJQJ7jX - YӟLVӵJL~SÿӥFӫD FiF QKj WѭYҩQ 1KұW %ҧQYj ÿһF ELӋWVӵKѭӟQJGүQ WUӵF WLӃS công QJKӋWKLF{QJOҳSÿһWFӫDQKjViQJFKӃUDFӑFYiQErW{QJӭQJOӵF WUѭӟF- 7LӃQVƭITOSHIMA &{QJW\& 7ÿmWKLF{QJKRjQKҧRKӋWKӕQJFiFNrQKGүQFKtQKYjFiFNrQKQKiQKYӟLWәQJFKLӅXGjLFӯ PFKLӅXUӝQJ PFKLӅXVkX m ÿѭD QѭӟF Wӯ V{QJ 7Kӏ 9ҧL YjR ÿӇ JLҧL QKLӋW FKR FiF 7XUELQ NKt +LӋQ QD\ KӋWKӕQJFiF krQKQj\YүQEӅQYӳQJ

1JRjLUDFzQQKLӅXF{QJWUuQKNKiFӭQJGөQJFӑFYiQErW{QJFӕWWKpSGӵӭQJOӵFQKѭ.q1KѫQ7UҥFKĈӗQJ1DLEӡNqWKjQKSKӕ%LrQ+zDĈӗQJ1DLNq%ҥF /LrX LrQ *LDQJ EmL UiF &ӫ &KL«NrQK 1KLrX /ӝF 7KjQK SKӕ +ӗ &Kt0LQKFӑF:GjLÿӃQP «

- KҧQăQJFKӏXOӵFWăQJP{PHQFKӕQJXӕQ[RҳQFDRKѫQFӑFYX{QJbê tông FӕWWKpSWKѭӡQJGRÿyFKӏXÿѭӧFP{PHQOӟQKѫQ

- 6ӱGөQJYұWOLӋXFѭӡQJÿӝFDR ErW{QJFӕWWKpS