【摘要】：抗滑、抗傾穩(wěn)定性是重力式碼頭結(jié)構(gòu)設(shè)計(jì)的重要內(nèi)容,目前采用的設(shè)計(jì)方法是基于可靠度的分項(xiàng)系數(shù)設(shè)計(jì)方法。分項(xiàng)系數(shù)方法雖然比安全系數(shù)方法前進(jìn)了一步,但仍不能全面合理考慮荷載、材料性能等存在的不確定性。如由于不同填料(砂或石)材料性能變異性的不同,碼頭抗滑、抗傾穩(wěn)定性的可靠度不同；對(duì)于墻后不同填料的情況,分項(xiàng)系數(shù)方法采用相同的分項(xiàng)系數(shù),并不能對(duì)可靠度的不同進(jìn)行區(qū)分。所以,《重力式碼頭設(shè)計(jì)與施工規(guī)范》(JTS167-2-2009)附錄D給出了重力式碼頭抗滑、抗傾穩(wěn)定性按可靠指標(biāo)的設(shè)計(jì)方法,但該方法并不完善,主要反映如下兩個(gè)方面：①按JC方法計(jì)算可靠指標(biāo)比較麻煩,需要借助專門的程序,不便于設(shè)計(jì)人員使用；②沒(méi)有波浪作用(波吸力)的統(tǒng)計(jì)參數(shù)和概率分布,不能用于有波浪力情況的設(shè)計(jì)。為此,結(jié)合交通運(yùn)輸部西部交通建設(shè)科技項(xiàng)目“重力式碼頭抗滑、抗傾穩(wěn)定性的可靠度指標(biāo)設(shè)計(jì)方法研究”,本論文開(kāi)展了重力式碼頭抗滑、抗傾穩(wěn)定性簡(jiǎn)化可靠指標(biāo)計(jì)算方法和設(shè)計(jì)方法的研究。主要內(nèi)容包括以下3個(gè)方面： (1)提出了不考慮波浪力作用情況下重力式碼頭抗滑、抗傾穩(wěn)定性可靠指標(biāo)的簡(jiǎn)化計(jì)算方法,采用簡(jiǎn)化計(jì)算公式可直接計(jì)算無(wú)波浪力時(shí)碼頭抗滑、抗傾穩(wěn)定性的可靠指標(biāo),計(jì)算結(jié)果與JC法的計(jì)算結(jié)果非常接近。 (2)提出了考慮波浪力作用情況下重力式碼頭抗滑、抗傾穩(wěn)定性可靠指標(biāo)的簡(jiǎn)化計(jì)算方法,采用簡(jiǎn)化計(jì)算公式直接計(jì)算有波浪力時(shí)碼頭抗滑、抗傾穩(wěn)定性的可靠指標(biāo),計(jì)算結(jié)果與JC法的計(jì)算結(jié)果同樣非常接近。 (3)提出了重力式碼頭抗滑、抗傾穩(wěn)定性的簡(jiǎn)化可靠指標(biāo)設(shè)計(jì)方法,通過(guò)標(biāo)準(zhǔn)值抗作比與可靠指標(biāo)的關(guān)系,采用給定的設(shè)計(jì)可靠指標(biāo)可直接對(duì)碼頭進(jìn)行抗滑、抗傾穩(wěn)定性進(jìn)行驗(yàn)算。
[Abstract]:Anti-slip and anti-dip stability is an important content in the design of gravity wharf structure. At present, the design method is based on the reliability of the sub-factor design method. Although the sub-factor method is a step forward from the safety factor method, the uncertainty of load and material properties can not be considered comprehensively and reasonably. For example, because of different filler (sand or stone) material performance variability, wharf anti-slide, anti-dip stability reliability is different; For the case of different fillers behind the wall, the method of partial coefficient can not distinguish the reliability. Therefore, Appendix D of the Code for Design and Construction of Gravity Wharf (JTS167-2-2009) gives the design method of the anti-skid and anti-dip stability of gravity wharf according to the reliable index, but the method is not perfect. It mainly reflects the following two aspects: (1) it is difficult to calculate the reliability index according to the JC method, so it is not convenient for the designer to use it because of the need of special program; 2 the statistical parameters and probability distribution without wave action (wave suction) can not be used in the design of wave force. Therefore, combining with the west transportation construction project of the Ministry of Communications and Transport, "study on the reliability index design method of anti-skid and anti-dip stability of gravity wharf", this paper carried out anti-skid resistance of gravity wharf. Research on simplified calculation method and design method of reliability index for anti-dip stability. The main contents include the following three aspects: (1) A simplified calculation method for the reliability index of anti-skid and anti-dip stability of gravity wharf without considering the action of wave force is proposed. The simplified formula can be used to directly calculate the reliability index of anti-skid and anti-dip stability of wharf without wave force. The calculated results are very close to those of JC method. (2) A simplified calculation method for the reliability index of anti-skid and anti-dip stability of gravity wharf considering the action of wave force is put forward, and the reliability index of anti-skid and anti-dip stability of wharf with wave force is directly calculated by simplified formula. The calculated results are very close to those obtained by JC method. (3) A simplified reliability index design method for the anti-skid and anti-dip stability of gravity wharf is put forward. Through the relation between the standard value anti-performance ratio and the reliability index, the design reliability index can be used to directly prevent the wharf from sliding. The stability of anti-inclination is checked.
【學(xué)位授予單位】：大連理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U656.111

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