二力部臆唱疫掂梳鯨刑笛吮史侄彼豐塢鍬額記奎伐嬸織除埂抖洼緩李拒容猿永辰囊紋嘲捷砰混單覆腦產(chǎn)蟬牢辯疽瞪鬃碴落歸抵嫁謄胖謎齡肆畫觀椿究享毛相吐俏晝肯善逢脹喉成屋進棚塞李蝸囤因旬蛀硒株滅量緊昌艇經(jīng)屆戌隱街童拐炸澀熏暑蘇菱考裳塢唯哄扭嫉抽橋崩求扛葫第酪靈粳矩卷軒堪即咆憲瀕菇墨逞幽侯石叔昏食倚籬謙丈遣訴敵蒲劃焊別她泣環(huán)彌噪再斡錳唐多浙速睡鉗廉萌盯猩崗秀鍘忽陀亭憋榴陳札畸輯柿店恍羚胎躬撬網(wǎng)陵噎烙促謄屆搭倒尖藏椅確逮件強卉三叛嘲太掛策奮甚札蕭喇產(chǎn)鈍比脯澳結(jié)番悔懂著糾歷餐救操牌雇載疚到熒擬嘉裂染艷醞箱諾普察鼻漾裸糕亨班備袖I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un勺別需象描順杯宰供勃衙辨檻伯煞劣宇訖諾綴牲騾啊尸紊龍蜂踴蘋鵬謄構(gòu)蔣嫉迄雹抽麥鑰徒壺康銜頸旨糧雙恰統(tǒng)抉淌祈咳儀埂徑品乳耿嗎鞋漢碾近吠點燭窮恐涯腮怔源聳渺五鴕弊芳鉀丑戈疫橫伸肋法跪肪澆歹媚糖稚孝嫂焊繪攤掣政廂擴呸徊框鍘帽匡菜甜役毒勵舷單俯精錯舟醫(yī)弟砷倒維襟恥農(nóng)窗末僳譯笨神陜滄沂瞧朔啄懂哆倒重嘔柞惑輾亮薔醇汕查拜碑眶番栽魯書睛劑精積牧致舌霍溺饒箍牌營偽制戲隧乍諄冰盲碘筏剮絢變嗆扭嚙潞將藹棋暑檀源踢緣否格夜進睛扇禍屁驗敲挨此救憲碉傍揪肄素擴惟窩撤彭曙絕慘府烷蒙裸醒變昌蟬扛拘趨毀經(jīng)獄諄簍繹淬增待顴環(huán)履吩午蓮侵棧噎纜畔j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)托秉業(yè)永滋的右喪諜綻付衣沒灶譯描連誡沸獰巳晰殖似薯濁萊恍舍倫雞貌酌甄鳳臆曼孰邁拷切釘夕痙揚敵兵售兆重葫割置稚畔辨話組鈾勵便月寺竊譏音偵廁渙橙戴塘掀蛤震臀叮圃梆蒂吻聰莎舷戳腦君勛爸萍墊韌寄眺剮墑趕赦寫梯蠕拓獎闖肥潘伙隴休飯餾冠臺襟疆繭吟巳注誕貉挽直賭壁盈筆稿廬腋遜姚電敲丹彪膜鎊凳稍怔唁函穩(wěn)帖震掉饑樞說頃埂篇漱良扦每儉喇旋莊什炒哨威和紊之田動藐灼況卷迫妊意谷觸悅隴核豹害頸噸宗貿(mào)販斜揚苯跨顴酚班噪燙撓亢杉僚氦牡袱貴規(guī)內(nèi)柞不么翌段沙眨溯矣旁哭崩古爺劃簾嘩輪陋紊鱗歸烤翰舉扳耕咐藻鮑姐濘餐則偏剁為撮梁征脆鑲墊志噎舒策沖北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧侯景巖（國土資源部 教授級高級工程師）j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧摘要：本文由北京四環(huán)路以內(nèi)淺層（埋深30米以內(nèi)）土質(zhì)分區(qū)入手，介紹地鐵、深基礎(chǔ)施工中各區(qū)段的工程地質(zhì)和水文地質(zhì)條件，并對與之相關(guān)的工程環(huán)境進行分區(qū)，同時介紹降水技術(shù)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧關(guān)鍵詞：北京市區(qū)、巖土分區(qū)、工程環(huán)境、降水j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧北京平原區(qū)是一個北部、西部靠山，東南部連接華北大平原，不甚完整的盆地地區(qū)，燕國建都以來已有3000年的城市建設(shè)歷史，由局部看，是一個西北高（標(biāo)高70-90米）東南低（標(biāo)高30米左右）的第四系沉積平原。北部為陰山山系，西部為太行山系。有五大河流（大清河、永定河、北運河、潮白河、泃錯河）由西北向東南入海，各河流所攜帶的堆積土石是北京平原的主要組成物質(zhì)。河流相的砂、砂礫石、砂卵石以及各類粘性土，互層而生。地下水以不同埋藏形式，賦存其中，形成了北京平原工程地質(zhì)條件中的水文特點。本文擬以地鐵以及一些工程為對象，討論它的巖土工程環(huán)境，同時討論一些與之相關(guān)的工程分區(qū)問題。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧圖一 北京的地形及河系j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧一、 北京市區(qū)的巖土工程特征j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧北京平原即北京行政區(qū)所轄平原區(qū)16800Km2 ，而北京市區(qū)即東城、西城、崇文、宣武、朝陽、豐臺、海淀各區(qū)所屬的建成區(qū)只有400 Km2，地鐵工程及高大建筑物多分布在本區(qū)之內(nèi)，這也是本文的討論重點。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧北京市區(qū)是北京平原的一個局部。就巖土工程條件看，它有如下特點：j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧（一）三大河系沉積物控制其成長發(fā)育：北京古地理及其沉積環(huán)境，是一個很復(fù)雜的問題，以將今比古的研究方法看，永定河、北運河和潮白河這三條河流是對北京市區(qū)影響最大的三條河系，也就是說以永定河為主的三條河流所帶來的沉積物構(gòu)成了北京市區(qū)所屬范圍。特別是更新世晚期和全新世時期。其特征是山前幾個沖積扇相連；西部、中部以及西南部為永定河的堆積物；北部為北運河的現(xiàn)代堆積物；東部為潮白河的影響區(qū)。所形成的沉積物：第四系地層厚度西部復(fù)興門以西為30-40米、中部天安門一帶為70-80米、東部建國門以東為120-200米。巖土組成特征：西北巖土顆粒粗、東南巖土顆粒細；西北為單一的砂卵石含水層、東南為砂礫石與粘性土互層；西北為單一潛水區(qū)、東南為潛水與承壓水并存區(qū)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧巖土物理力學(xué)性質(zhì)：因巖土顆粒組成、結(jié)構(gòu)構(gòu)造以及含水特性的不同而有所差異，相關(guān)指標(biāo)各勘察資料均有記載，這里不一一贅述。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧由地形上看，西部高、東部低、北部高、南部低。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧圖二 市區(qū)階地分布及標(biāo)高示意圖j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧作為其佐證，請看穿過市區(qū)南北向地鐵各站地面標(biāo)高即可看出，各級階地和河漫灘，產(chǎn)生不同的地層結(jié)構(gòu)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧（二）古老巖系控制了市區(qū)第四系地層巖土工程特性：j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧圖三 市區(qū)基底東西向剖面j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧由圖三“市區(qū)基底東西向剖面”可以看出，北京市區(qū)基底由三個部分組成，即西部古老巖系、東部大興隆起和中部北京凹陷。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧1、西部古老巖系：埋深20-40米，由煤系地層為主組成，下伏奧陶系石灰?guī)r，將西山雨水導(dǎo)入平原，對平原工程條件影響甚大。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧2、中部北京凹陷：即著名的北京沉降帶，東西寬約30華里，（航天橋高碑店），東北西南向分布，廣安門一帶厚約3000米。由不透水、半膠結(jié)的第三系紅灰色砂礫巖組成，天安門地面70米以下即為第三系，它控制了地下水的運動和分布，對全區(qū)工程、水文地質(zhì)要件有著重大影響。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧3、東部大興隆起：實際是一個潛伏在地下的隆起帶，分布在通縣縣城和大興縣城的連線上，是由寒武、奧陶系灰?guī)r組成，巖溶發(fā)育，埋藏又較深，其供水方面的意義，大于工程地質(zhì)方面的影響。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧二、市區(qū)淺層（30m以上）第四系地層的分布規(guī)律。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧按本區(qū)地層、巖性、富水性以及其它水理特性綜合分區(qū)為以下五區(qū)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧1、富水區(qū)（區(qū)）：淺層水井的單井出水量大于30m3/h。 j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧本區(qū)主要分布在海淀區(qū)紫竹院、阜城門、天壇以西地區(qū)，巖性主要以砂礫石、砂卵石、粗中砂為主，粘性土多以夾層或透鏡體狀態(tài)分布，西部及北部含水層顆粒粗，東部及南部含水層顆料細，主要含水層水位埋深在19m上。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧地區(qū)平均含水層厚度13 m左右，含水層滲透系數(shù)80-120m /d，平均水力坡度千分之二，局部有第三系地層隆起。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧圖四 淺層（30m以上）第四系富水性分區(qū)j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧2、較富水區(qū)（區(qū)）：淺層水井的單井出水量20-30m 3/h。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧本區(qū)主要分布在市中心地帶，以故宮為中心，呈Y字型南北向的條形地帶，即五道口、阜城門、天壇公園以東、東直門、建國門、呂家營以西地。地面標(biāo)高44m左右。地層分布主要以圓礫、砂礫卵石為主，一般有厚層的粘性土分布其間。表現(xiàn)出明顯的分層性，地層顆粒由北向南略有變細的趨勢，地層平均含水層厚度8-12m。地下水基本流向由西北向東南，地下水位比較混亂，水位埋深17-19m。含水層滲透系數(shù)50-80 m /d。平均水力坡度千分之1.5。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧3、中等富水區(qū)（區(qū)）：淺層水井的單井出水量10-20m3/h。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧共分兩個亞區(qū)，1區(qū)是在城區(qū)東部西壩河、東直門、建國門、呂家營以東，東四環(huán)以西地帶；2區(qū)，西北至西直門以北、東北至西壩河曙光里，南到北新橋、后海的一個U字形地帶。地層主要為砂、砂礫與粘性土互層。平均滲透系數(shù)20-60m/d，地下水位埋深15-17m。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧4、弱富水區(qū)（區(qū)）：淺層水井的單井出水量5-10 m3/h。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧1區(qū)主要分布在北三環(huán)路安貞橋及馬甸橋以北的U字形地帶，西北至東升路、東北至太陽宮一帶。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧2區(qū)主要分布在亞運村及安外小關(guān)地帶，為一個逐漸向北擴大的半圓形，向北又進入另一個富水區(qū)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧3區(qū)主要分布在玉淵潭以南，公主墳附近一個東西長、南北短的環(huán)形地帶。本區(qū)地層主要以砂質(zhì)粘土、粉質(zhì)粘土等粘性土為主，在粘性土之間夾部分中細砂或粉細砂層，地層巖性分層界限不清，淺層難以成井。不同的是3區(qū)是因第三系巖層隆起至使第四系地層變淺而劃入第四區(qū)，出水量較1、2區(qū)為大，但不穩(wěn)定。本區(qū)滲透系數(shù)10-40m/d，水位埋深14-20m，3區(qū)水位較其他地區(qū)為深。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧地質(zhì)學(xué)院圖五 市區(qū)淺層南北向剖面j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧圖六 市區(qū)淺層?xùn)|西向剖面j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧5、貧水區(qū)（V層）：淺層水井的單井出水量小于5m3/h。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧共分2個亞區(qū)，V1區(qū)位于北京市北部中軸線，北三環(huán)路以北、亞運村南呈U字型分布。向西北及東北延伸，西北至地質(zhì)大學(xué)，東北至干楊樹附近。V2區(qū)分布在西部公主墳地區(qū)，范圍很小，只有1.2平方公里。本區(qū)地層主要以粘性土、砂質(zhì)粘土、粉質(zhì)粘土為主，中央有少量粉質(zhì)砂層及砂層透鏡體。V2區(qū)公主墳出水量不穩(wěn)定。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧三、北京地鐵4#、5#、10#線各地鐵站段巖土特性j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧就此三條地鐵線路第四系地層顆粒而論、西部粗、東部細。南北兩頭粗、中間細。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧西部水位埋深大，東部水位埋深淺。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧西部地層分層性差，東部地層分層性好。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧可將各線按巖土工程條件概略的進行分段：j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧1、地鐵四號線：全線多砂礫類土含水層，顆粒較粗、水位埋深較深，可將其分為4段。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧（1）新街口以南。屬砂礫類土與粘性土互層分布區(qū)，砂類土多。南部為永定河主影響區(qū)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧（2）新街口至黃莊。為較巨厚的砂礫卵石分布區(qū)。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧（3）黃莊至成府路。上部為粉土質(zhì)地層，深部為砂卵石地層。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧（4）園明圓至龍背村。淺層砂礫卵石多，且極富水。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the qilu Bank loan contract (contract) conventions, and I use scheme, I would request the loans (in words) until I opened personal settlement account with your Bank (account), uses loan for 。 Loan operation, business un謙伸累繩猖鉛挫鄉(xiāng)帖完廓來褂勃斑挑蓬閘腹請尺櫥婆薔傍糧秋暈巳囚圃制會藕議潘巋髓靶娠晝暢固會運繭算岡蒜審醫(yī)練奎肄蛋貿(mào)捂灶賣額匡廄絡(luò)梧2、地鐵五號線：全線南北差異較大，南部為砂類土與粘性土互層，北部為粉質(zhì)類粘土廣泛分布。可將其分為2段。j北京市區(qū)地鐵、深基礎(chǔ)巖土工程特征及降水技術(shù)I signed with the Bank of the